build: cache go build & test

Signed-off-by: Anagh Kumar Baranwal <6824881+darthShadow@users.noreply.github.com>

.github/workflows/build.yml

@@ -17,22 +17,24 @@ on:
       manual:
         description: Manual run (bypass default conditions)
         type: boolean
-        required: true
         default: true
 
 jobs:
   build:
-    if: ${{ github.event.inputs.manual == 'true' || (github.repository == 'rclone/rclone' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name)) }}
+    if: inputs.manual || (github.repository == 'rclone/rclone' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name))
     timeout-minutes: 60
+    defaults:
+      run:
+        shell: bash
     strategy:
       fail-fast: false
       matrix:
-        job_name: ['linux', 'linux_386', 'mac_amd64', 'mac_arm64', 'windows', 'other_os', 'go1.20', 'go1.21']
+        job_name: ['linux', 'linux_386', 'mac_amd64', 'mac_arm64', 'windows', 'other_os', 'go1.23']
 
         include:
           - job_name: linux
             os: ubuntu-latest
-            go: '>=1.22.0-rc.1'
+            go: '>=1.24.0-rc.1'
             gotags: cmount
             build_flags: '-include "^linux/"'
             check: true
@@ -43,14 +45,14 @@ jobs:
 
           - job_name: linux_386
             os: ubuntu-latest
-            go: '>=1.22.0-rc.1'
+            go: '>=1.24.0-rc.1'
             goarch: 386
             gotags: cmount
             quicktest: true
 
           - job_name: mac_amd64
             os: macos-latest
-            go: '>=1.22.0-rc.1'
+            go: '>=1.24.0-rc.1'
             gotags: 'cmount'
             build_flags: '-include "^darwin/amd64" -cgo'
             quicktest: true
@@ -59,14 +61,14 @@ jobs:
 
           - job_name: mac_arm64
             os: macos-latest
-            go: '>=1.22.0-rc.1'
+            go: '>=1.24.0-rc.1'
             gotags: 'cmount'
             build_flags: '-include "^darwin/arm64" -cgo -macos-arch arm64 -cgo-cflags=-I/usr/local/include -cgo-ldflags=-L/usr/local/lib'
             deploy: true
 
           - job_name: windows
             os: windows-latest
-            go: '>=1.22.0-rc.1'
+            go: '>=1.24.0-rc.1'
             gotags: cmount
             cgo: '0'
             build_flags: '-include "^windows/"'
@@ -76,20 +78,14 @@ jobs:
 
           - job_name: other_os
             os: ubuntu-latest
-            go: '>=1.22.0-rc.1'
+            go: '>=1.24.0-rc.1'
             build_flags: '-exclude "^(windows/|darwin/|linux/)"'
             compile_all: true
             deploy: true
 
-          - job_name: go1.20
+          - job_name: go1.23
             os: ubuntu-latest
-            go: '1.20'
-            quicktest: true
-            racequicktest: true
-
-          - job_name: go1.21
-            os: ubuntu-latest
-            go: '1.21'
+            go: '1.23'
             quicktest: true
             racequicktest: true
 
@@ -110,7 +106,6 @@ jobs:
           check-latest: true
 
       - name: Set environment variables
-        shell: bash
         run: |
           echo 'GOTAGS=${{ matrix.gotags }}' >> $GITHUB_ENV
           echo 'BUILD_FLAGS=${{ matrix.build_flags }}' >> $GITHUB_ENV
@@ -119,16 +114,15 @@ jobs:
           if [[ "${{ matrix.cgo }}" != "" ]]; then echo 'CGO_ENABLED=${{ matrix.cgo }}' >> $GITHUB_ENV ; fi
 
       - name: Install Libraries on Linux
-        shell: bash
         run: |
           sudo modprobe fuse
           sudo chmod 666 /dev/fuse
           sudo chown root:$USER /etc/fuse.conf
-          sudo apt-get install fuse3 libfuse-dev rpm pkg-config git-annex git-annex-remote-rclone
+          sudo apt-get update
+          sudo apt-get install -y fuse3 libfuse-dev rpm pkg-config git-annex git-annex-remote-rclone nfs-common
         if: matrix.os == 'ubuntu-latest'
 
       - name: Install Libraries on macOS
-        shell: bash
         run: |
           # https://github.com/Homebrew/brew/issues/15621#issuecomment-1619266788
           # https://github.com/orgs/Homebrew/discussions/4612#discussioncomment-6319008
@@ -157,7 +151,6 @@ jobs:
         if: matrix.os == 'windows-latest'
 
       - name: Print Go version and environment
-        shell: bash
         run: |
           printf "Using go at: $(which go)\n"
           printf "Go version: $(go version)\n"
@@ -169,29 +162,24 @@ jobs:
           env
 
       - name: Build rclone
-        shell: bash
         run: |
           make
 
       - name: Rclone version
-        shell: bash
         run: |
           rclone version
 
       - name: Run tests
-        shell: bash
         run: |
           make quicktest
         if: matrix.quicktest
 
       - name: Race test
-        shell: bash
         run: |
           make racequicktest
         if: matrix.racequicktest
 
       - name: Run librclone tests
-        shell: bash
         run: |
           make -C librclone/ctest test
           make -C librclone/ctest clean
@@ -199,14 +187,12 @@ jobs:
         if: matrix.librclonetest
 
       - name: Compile all architectures test
-        shell: bash
         run: |
           make
           make compile_all
         if: matrix.compile_all
 
       - name: Deploy built binaries
-        shell: bash
         run: |
           if [[ "${{ matrix.os }}" == "ubuntu-latest" ]]; then make release_dep_linux ; fi
           make ci_beta
@@ -217,7 +203,7 @@ jobs:
         if: env.RCLONE_CONFIG_PASS != '' && matrix.deploy && github.head_ref == '' && github.repository == 'rclone/rclone'
 
   lint:
-    if: ${{ github.event.inputs.manual == 'true' || (github.repository == 'rclone/rclone' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name)) }}
+    if: inputs.manual || (github.repository == 'rclone/rclone' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name))
     timeout-minutes: 30
     name: "lint"
     runs-on: ubuntu-latest
@@ -225,19 +211,20 @@ jobs:
     steps:
       - name: Get runner parameters
         id: get-runner-parameters
-        shell: bash
         run: |
           echo "year-week=$(/bin/date -u "+%Y%V")" >> $GITHUB_OUTPUT
           echo "runner-os-version=$ImageOS" >> $GITHUB_OUTPUT
 
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+            fetch-depth: 0
 
       - name: Install Go
         id: setup-go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.22.0-rc.1'
+          go-version: '>=1.23.0-rc.1'
           check-latest: true
           cache: false
 
@@ -295,8 +282,12 @@ jobs:
       - name: Scan for vulnerabilities
         run: govulncheck ./...
 
+      - name: Scan edits of autogenerated files
+        run: bin/check_autogenerated_edits.py 'origin/${{ github.base_ref }}'
+        if: github.event_name == 'pull_request'
+
   android:
-    if: ${{ github.event.inputs.manual == 'true' || (github.repository == 'rclone/rclone' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name)) }}
+    if: inputs.manual || (github.repository == 'rclone/rclone' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name))
     timeout-minutes: 30
     name: "android-all"
     runs-on: ubuntu-latest
@@ -311,10 +302,9 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '>=1.22.0-rc.1'
+          go-version: '>=1.24.0-rc.1'
 
       - name: Set global environment variables
-        shell: bash
         run: |
           echo "VERSION=$(make version)" >> $GITHUB_ENV
 
@@ -333,7 +323,6 @@ jobs:
         run: env PATH=$PATH:~/go/bin gomobile bind -androidapi ${RCLONE_NDK_VERSION} -v -target=android/arm -javapkg=org.rclone -ldflags '-s -X github.com/rclone/rclone/fs.Version='${VERSION} github.com/rclone/rclone/librclone/gomobile
 
       - name: arm-v7a Set environment variables
-        shell: bash
         run: |
           echo "CC=$(echo $ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi${RCLONE_NDK_VERSION}-clang)" >> $GITHUB_ENV
           echo "CC_FOR_TARGET=$CC" >> $GITHUB_ENV
@@ -347,7 +336,6 @@ jobs:
         run: go build -v -tags android -trimpath -ldflags '-s -X github.com/rclone/rclone/fs.Version='${VERSION} -o build/rclone-android-${RCLONE_NDK_VERSION}-armv7a .
 
       - name: arm64-v8a Set environment variables
-        shell: bash
         run: |
           echo "CC=$(echo $ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android${RCLONE_NDK_VERSION}-clang)" >> $GITHUB_ENV
           echo "CC_FOR_TARGET=$CC" >> $GITHUB_ENV
@@ -360,7 +348,6 @@ jobs:
         run: go build -v -tags android -trimpath -ldflags '-s -X github.com/rclone/rclone/fs.Version='${VERSION} -o build/rclone-android-${RCLONE_NDK_VERSION}-armv8a .
 
       - name: x86 Set environment variables
-        shell: bash
         run: |
           echo "CC=$(echo $ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/i686-linux-android${RCLONE_NDK_VERSION}-clang)" >> $GITHUB_ENV
           echo "CC_FOR_TARGET=$CC" >> $GITHUB_ENV
@@ -373,7 +360,6 @@ jobs:
         run: go build -v -tags android -trimpath -ldflags '-s -X github.com/rclone/rclone/fs.Version='${VERSION} -o build/rclone-android-${RCLONE_NDK_VERSION}-x86 .
 
       - name: x64 Set environment variables
-        shell: bash
         run: |
           echo "CC=$(echo $ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/x86_64-linux-android${RCLONE_NDK_VERSION}-clang)" >> $GITHUB_ENV
           echo "CC_FOR_TARGET=$CC" >> $GITHUB_ENV

.github/workflows/build_android.yml

@@ -0,0 +1,212 @@
+---
+# Github Actions build for rclone
+# -*- compile-command: "yamllint -f parsable build_android.yml" -*-
+
+name: Build & Push Android Builds
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
+# Trigger the workflow on push or pull request
+on:
+  push:
+    branches:
+      - '**'
+    tags:
+      - '**'
+  pull_request:
+  workflow_dispatch:
+    inputs:
+      manual:
+        description: Manual run (bypass default conditions)
+        type: boolean
+        default: true
+
+jobs:
+  android:
+    if: inputs.manual || (github.repository == 'rclone/rclone' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name))
+    timeout-minutes: 30
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - job_name: android-all
+            platform: linux/amd64/android/go1.24
+            os: ubuntu-latest
+            go: '>=1.24.0-rc.1'
+
+    name: ${{ matrix.job_name }}
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      # Upgrade together with NDK version
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go }}
+          check-latest: true
+          cache: false
+
+      - name: Set Environment Variables
+        shell: bash
+        run: |
+          echo "GOMODCACHE=$(go env GOMODCACHE)" >> $GITHUB_ENV
+          echo "GOCACHE=$(go env GOCACHE)" >> $GITHUB_ENV
+          echo "VERSION=$(make version)" >> $GITHUB_ENV
+
+      - name: Set PLATFORM Variable
+        shell: bash
+        run: |
+          platform=${{ matrix.platform }}
+          echo "PLATFORM=${platform//\//-}" >> $GITHUB_ENV
+
+      - name: Get ImageOS
+        # There's no way around this, because "ImageOS" is only available to
+        # processes, but the setup-go action uses it in its key.
+        id: imageos
+        uses: actions/github-script@v7
+        with:
+          result-encoding: string
+          script: |
+            return process.env.ImageOS
+
+      - name: Set CACHE_PREFIX Variable
+        shell: bash
+        run: |
+          cache_prefix=${{ runner.os }}-${{ steps.imageos.outputs.result }}-${{ env.PLATFORM }}
+          echo "CACHE_PREFIX=${cache_prefix}" >> $GITHUB_ENV
+
+      - name: Load Go Module Cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ env.GOMODCACHE }}
+          key: ${{ env.CACHE_PREFIX }}-modcache-${{ hashFiles('**/go.mod') }}-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ env.CACHE_PREFIX }}-modcache
+
+      # Both load & update the cache when on default branch
+      - name: Load Go Build & Test Cache
+        id: go-cache
+        uses: actions/cache@v4
+        if: github.ref_name == github.event.repository.default_branch && github.event_name != 'pull_request'
+        with:
+          path: |
+            ${{ env.GOCACHE }}
+          key: ${{ env.CACHE_PREFIX }}-cache-${{ hashFiles('**/go.mod') }}-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ env.CACHE_PREFIX }}-cache
+
+      # Only load the cache when not on default branch
+      - name: Load Go Build & Test Cache
+        id: go-cache-restore
+        uses: actions/cache/restore@v4
+        if: github.ref_name != github.event.repository.default_branch || github.event_name == 'pull_request'
+        with:
+          path: |
+            ${{ env.GOCACHE }}
+          key: ${{ env.CACHE_PREFIX }}-cache-${{ hashFiles('**/go.mod') }}-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ env.CACHE_PREFIX }}-cache
+
+      - name: Build Native rclone
+        shell: bash
+        run: |
+          make
+
+      - name: Install gomobile
+        shell: bash
+        run: |
+          go install golang.org/x/mobile/cmd/gobind@latest
+          go install golang.org/x/mobile/cmd/gomobile@latest
+          env PATH=$PATH:~/go/bin gomobile init
+          echo "RCLONE_NDK_VERSION=21" >> $GITHUB_ENV
+
+      - name: arm-v7a - gomobile build
+        shell: bash
+        run: env PATH=$PATH:~/go/bin gomobile bind -androidapi ${RCLONE_NDK_VERSION} -v -target=android/arm -javapkg=org.rclone -ldflags '-s -X github.com/rclone/rclone/fs.Version='${VERSION} github.com/rclone/rclone/librclone/gomobile
+
+      - name: arm-v7a - Set Environment Variables
+        shell: bash
+        run: |
+          echo "CC=$(echo $ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi${RCLONE_NDK_VERSION}-clang)" >> $GITHUB_ENV
+          echo "CC_FOR_TARGET=$CC" >> $GITHUB_ENV
+          echo 'GOOS=android' >> $GITHUB_ENV
+          echo 'GOARCH=arm' >> $GITHUB_ENV
+          echo 'GOARM=7' >> $GITHUB_ENV
+          echo 'CGO_ENABLED=1' >> $GITHUB_ENV
+          echo 'CGO_LDFLAGS=-fuse-ld=lld -s -w' >> $GITHUB_ENV
+
+      - name: arm-v7a - Build
+        shell: bash
+        run: go build -v -tags android -trimpath -ldflags '-s -X github.com/rclone/rclone/fs.Version='${VERSION} -o build/rclone-android-${RCLONE_NDK_VERSION}-armv7a .
+
+      - name: arm64-v8a - Set Environment Variables
+        shell: bash
+        run: |
+          echo "CC=$(echo $ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android${RCLONE_NDK_VERSION}-clang)" >> $GITHUB_ENV
+          echo "CC_FOR_TARGET=$CC" >> $GITHUB_ENV
+          echo 'GOOS=android' >> $GITHUB_ENV
+          echo 'GOARCH=arm64' >> $GITHUB_ENV
+          echo 'CGO_ENABLED=1' >> $GITHUB_ENV
+          echo 'CGO_LDFLAGS=-fuse-ld=lld -s -w' >> $GITHUB_ENV
+
+      - name: arm64-v8a - Build
+        shell: bash
+        run: go build -v -tags android -trimpath -ldflags '-s -X github.com/rclone/rclone/fs.Version='${VERSION} -o build/rclone-android-${RCLONE_NDK_VERSION}-armv8a .
+
+      - name: x86 - Set Environment Variables
+        shell: bash
+        run: |
+          echo "CC=$(echo $ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/i686-linux-android${RCLONE_NDK_VERSION}-clang)" >> $GITHUB_ENV
+          echo "CC_FOR_TARGET=$CC" >> $GITHUB_ENV
+          echo 'GOOS=android' >> $GITHUB_ENV
+          echo 'GOARCH=386' >> $GITHUB_ENV
+          echo 'CGO_ENABLED=1' >> $GITHUB_ENV
+          echo 'CGO_LDFLAGS=-fuse-ld=lld -s -w' >> $GITHUB_ENV
+
+      - name: x86 - Build
+        shell: bash
+        run: go build -v -tags android -trimpath -ldflags '-s -X github.com/rclone/rclone/fs.Version='${VERSION} -o build/rclone-android-${RCLONE_NDK_VERSION}-x86 .
+
+      - name: x64 - Set Environment Variables
+        shell: bash
+        run: |
+          echo "CC=$(echo $ANDROID_NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/x86_64-linux-android${RCLONE_NDK_VERSION}-clang)" >> $GITHUB_ENV
+          echo "CC_FOR_TARGET=$CC" >> $GITHUB_ENV
+          echo 'GOOS=android' >> $GITHUB_ENV
+          echo 'GOARCH=amd64' >> $GITHUB_ENV
+          echo 'CGO_ENABLED=1' >> $GITHUB_ENV
+          echo 'CGO_LDFLAGS=-fuse-ld=lld -s -w' >> $GITHUB_ENV
+
+      - name: x64 - Build
+        shell: bash
+        run: go build -v -tags android -trimpath -ldflags '-s -X github.com/rclone/rclone/fs.Version='${VERSION} -o build/rclone-android-${RCLONE_NDK_VERSION}-x64 .
+
+      - name: Delete Existing Cache
+        continue-on-error: true
+        shell: bash
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          cache_ids=($(gh cache list --key "${{ env.CACHE_PREFIX }}-cache" --json id | jq '.[].id'))
+          for cache_id in "${cache_ids[@]}"; do
+            echo "Deleting Cache: $cache_id"
+            gh cache delete "$cache_id"
+          done
+        if: github.ref_name == github.event.repository.default_branch && github.event_name != 'pull_request' && steps.go-cache.outputs.cache-hit != 'true'
+
+      - name: Deploy Built Binaries
+        shell: bash
+        run: |
+          make ci_upload
+        env:
+          RCLONE_CONFIG_PASS: ${{ secrets.RCLONE_CONFIG_PASS }}
+        # Upload artifacts if not a PR && not a fork
+        if: env.RCLONE_CONFIG_PASS != '' && github.head_ref == '' && github.repository == 'rclone/rclone'

.github/workflows/build_publish_beta_docker_image.yml

@@ -1,77 +0,0 @@
-name: Docker beta build
-
-on:
-    push:
-      branches:
-        - master
-jobs:
-    build:
-        if: github.repository == 'rclone/rclone'
-        runs-on: ubuntu-latest
-        name: Build image job
-        steps:
-            - name: Free some space
-              shell: bash
-              run: |
-                df -h .
-                # Remove android SDK
-                sudo rm -rf /usr/local/lib/android || true
-                # Remove .net runtime
-                sudo rm -rf /usr/share/dotnet || true
-                df -h .
-            - name: Checkout master
-              uses: actions/checkout@v4
-              with:
-                fetch-depth: 0
-            - name: Login to Docker Hub
-              uses: docker/login-action@v3
-              with:
-                username: ${{ secrets.DOCKERHUB_USERNAME }}
-                password: ${{ secrets.DOCKERHUB_TOKEN }}
-            - name: Extract metadata (tags, labels) for Docker
-              id: meta
-              uses: docker/metadata-action@v5
-              with:
-                images: ghcr.io/${{ github.repository }}
-            - name: Set up QEMU
-              uses: docker/setup-qemu-action@v3
-            - name: Set up Docker Buildx
-              uses: docker/setup-buildx-action@v3
-            - name: Login to GitHub Container Registry
-              uses: docker/login-action@v3
-              with:
-                registry: ghcr.io
-                # This is the user that triggered the Workflow. In this case, it will
-                # either be the user whom created the Release or manually triggered
-                # the workflow_dispatch.
-                username: ${{ github.actor }}
-                # `secrets.GITHUB_TOKEN` is a secret that's automatically generated by
-                # GitHub Actions at the start of a workflow run to identify the job.
-                # This is used to authenticate against GitHub Container Registry.
-                # See https://docs.github.com/en/actions/security-guides/automatic-token-authentication#about-the-github_token-secret
-                # for more detailed information.
-                password: ${{ secrets.GITHUB_TOKEN }}
-            - name: Show disk usage
-              shell: bash
-              run: |
-                df -h .
-            - name: Build and publish image
-              uses: docker/build-push-action@v6
-              with:
-                file: Dockerfile
-                context: .
-                push: true # push the image to ghcr
-                tags: |
-                  ghcr.io/rclone/rclone:beta
-                  rclone/rclone:beta
-                labels: ${{ steps.meta.outputs.labels }}
-                platforms: linux/amd64,linux/386,linux/arm64,linux/arm/v7,linux/arm/v6
-                cache-from: type=gha, scope=${{ github.workflow }}
-                cache-to: type=gha, mode=max, scope=${{ github.workflow }}
-                provenance: false
-              # Eventually cache will need to be cleared if builds more frequent than once a week
-              # https://github.com/docker/build-push-action/issues/252
-            - name: Show disk usage
-              shell: bash
-              run: |
-                df -h .

.github/workflows/build_publish_docker_image.yml

@@ -0,0 +1,329 @@
+---
+# Github Actions release for rclone
+# -*- compile-command: "yamllint -f parsable build_publish_docker_image.yml" -*-
+
+name: Build & Push Docker Images
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
+# Trigger the workflow on push or pull request
+on:
+  push:
+    branches:
+      - '**'
+    tags:
+      - '**'
+  workflow_dispatch:
+    inputs:
+      manual:
+        description: Manual run (bypass default conditions)
+        type: boolean
+        default: true
+
+jobs:
+  build-image:
+    if: inputs.manual || (github.repository == 'rclone/rclone' && github.event_name != 'pull_request')
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: linux/amd64
+            runs-on: ubuntu-24.04
+          - platform: linux/386
+            runs-on: ubuntu-24.04
+          - platform: linux/arm64
+            runs-on: ubuntu-24.04-arm
+          - platform: linux/arm/v7
+            runs-on: ubuntu-24.04-arm
+          - platform: linux/arm/v6
+            runs-on: ubuntu-24.04-arm
+
+    name: Build Docker Image for ${{ matrix.platform }}
+    runs-on: ${{ matrix.runs-on }}
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set REPO_NAME Variable
+        shell: bash
+        run: |
+          echo "REPO_NAME=`echo ${{github.repository}} | tr '[:upper:]' '[:lower:]'`" >> ${GITHUB_ENV}
+
+      - name: Set PLATFORM Variable
+        shell: bash
+        run: |
+          platform=${{ matrix.platform }}
+          echo "PLATFORM=${platform//\//-}" >> $GITHUB_ENV
+
+      - name: Set CACHE_NAME Variable
+        shell: python
+        env:
+          GITHUB_EVENT_REPOSITORY_DEFAULT_BRANCH: ${{ github.event.repository.default_branch }}
+        run: |
+          import os, re
+
+          def slugify(input_string, max_length=63):
+            slug = input_string.lower()
+            slug = re.sub(r'[^a-z0-9 -]', ' ', slug)
+            slug = slug.strip()
+            slug = re.sub(r'\s+', '-', slug)
+            slug = re.sub(r'-+', '-', slug)
+            slug = slug[:max_length]
+            slug = re.sub(r'[-]+$', '', slug)
+            return slug
+
+          ref_name_slug = "cache"
+
+          if os.environ.get("GITHUB_REF_NAME"):
+            if os.environ['GITHUB_EVENT_NAME'] == "pull_request":
+              ref_name_slug += "-pr-" + slugify(os.environ['GITHUB_REF_NAME'])
+            elif os.environ['GITHUB_REF_NAME'] != os.environ['GITHUB_EVENT_REPOSITORY_DEFAULT_BRANCH']:
+              ref_name_slug += "-ref-" + slugify(os.environ['GITHUB_REF_NAME'])
+
+          with open(os.environ['GITHUB_ENV'], 'a') as env:
+              env.write(f"CACHE_NAME={ref_name_slug}\n")
+
+      - name: Get ImageOS
+        # There's no way around this, because "ImageOS" is only available to
+        # processes, but the setup-go action uses it in its key.
+        id: imageos
+        uses: actions/github-script@v7
+        with:
+          result-encoding: string
+          script: |
+            return process.env.ImageOS
+
+      - name: Set CACHE_PREFIX Variable
+        shell: bash
+        run: |
+          cache_prefix=${{ runner.os }}-${{ steps.imageos.outputs.result }}-${{ env.PLATFORM }}-docker-go
+          echo "CACHE_PREFIX=${cache_prefix}" >> $GITHUB_ENV
+
+      - name: Extract Metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        env:
+          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,manifest-descriptor # Important for digest annotation (used by Github packages)
+        with:
+          images: |
+            ghcr.io/${{ env.REPO_NAME }}
+          labels: |
+            org.opencontainers.image.url=https://github.com/rclone/rclone/pkgs/container/rclone
+            org.opencontainers.image.vendor=${{ github.repository_owner }}
+            org.opencontainers.image.authors=rclone <https://github.com/rclone>
+            org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}
+            org.opencontainers.image.revision=${{ github.sha }}
+          tags: |
+            type=sha
+            type=ref,event=pr
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=raw,value=beta,enable={{is_default_branch}}
+
+      - name: Setup QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Load Go Build Cache for Docker
+        id: go-cache
+        uses: actions/cache@v4
+        if: github.ref_name == github.event.repository.default_branch
+        with:
+          # Cache only the go builds, the module download is cached via the docker layer caching
+          path: |
+            /tmp/go-build-cache
+          key: ${{ env.CACHE_PREFIX }}-cache-${{ hashFiles('**/go.mod') }}-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ env.CACHE_PREFIX }}-cache
+
+      - name: Load Go Build Cache for Docker
+        id: go-cache-restore
+        uses: actions/cache/restore@v4
+        if: github.ref_name != github.event.repository.default_branch
+        with:
+          # Cache only the go builds, the module download is cached via the docker layer caching
+          path: |
+            /tmp/go-build-cache
+          key: ${{ env.CACHE_PREFIX }}-cache-${{ hashFiles('**/go.mod') }}-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ env.CACHE_PREFIX }}-cache
+
+      - name: Inject Go Build Cache into Docker
+        uses: reproducible-containers/buildkit-cache-dance@v3
+        with:
+          cache-map: |
+            {
+              "/tmp/go-build-cache": "/root/.cache/go-build"
+            }
+          skip-extraction: ${{ steps.go-cache.outputs.cache-hit || steps.go-cache-restore.outputs.cache-hit }}
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          # This is the user that triggered the Workflow. In this case, it will
+          # either be the user whom created the Release or manually triggered
+          # the workflow_dispatch.
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and Publish Image Digest
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          file: Dockerfile
+          context: .
+          provenance: false
+          # don't specify 'tags' here (error "get can't push tagged ref by digest")
+          # tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          annotations: ${{ steps.meta.outputs.annotations }}
+          platforms: ${{ matrix.platform }}
+          outputs: |
+            type=image,name=ghcr.io/${{ env.REPO_NAME }},push-by-digest=true,name-canonical=true,push=true
+          cache-from: |
+            type=registry,ref=ghcr.io/${{ env.REPO_NAME }}:build-${{ env.PLATFORM }}-${{ env.CACHE_NAME }}
+            type=registry,ref=ghcr.io/${{ env.REPO_NAME }}:build-${{ env.PLATFORM }}-cache
+          cache-to: |
+            type=registry,ref=ghcr.io/${{ env.REPO_NAME }}:build-${{ env.PLATFORM }}-${{ env.CACHE_NAME }},image-manifest=true,mode=max,compression=zstd
+
+      - name: Export Image Digest
+        run: |
+          mkdir -p /tmp/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "/tmp/digests/${digest#sha256:}"
+
+      - name: Upload Image Digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digests-${{ env.PLATFORM }}
+          path: /tmp/digests/*
+          retention-days: 1
+          if-no-files-found: error
+
+      - name: Delete Existing Cache
+        if: github.ref_name == github.event.repository.default_branch && steps.go-cache.outputs.cache-hit != 'true'
+        continue-on-error: true
+        shell: bash
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          cache_ids=($(gh cache list --key "${{ env.CACHE_PREFIX }}-cache" --json id | jq '.[].id'))
+          for cache_id in "${cache_ids[@]}"; do
+            echo "Deleting Cache: $cache_id"
+            gh cache delete "$cache_id"
+          done
+
+  merge-image:
+    name: Merge & Push Final Docker Image
+    runs-on: ubuntu-24.04
+    needs:
+      - build-image
+
+    steps:
+      - name: Download Image Digests
+        uses: actions/download-artifact@v4
+        with:
+          path: /tmp/digests
+          pattern: digests-*
+          merge-multiple: true
+
+      - name: Set REPO_NAME Variable
+        shell: bash
+        run: |
+          echo "REPO_NAME=`echo ${{github.repository}} | tr '[:upper:]' '[:lower:]'`" >> ${GITHUB_ENV}
+
+      - name: Extract Metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        env:
+          DOCKER_METADATA_ANNOTATIONS_LEVELS: index
+        with:
+          images: |
+            ${{ env.REPO_NAME }}
+            ghcr.io/${{ env.REPO_NAME }}
+          labels: |
+            org.opencontainers.image.url=https://github.com/rclone/rclone/pkgs/container/rclone
+            org.opencontainers.image.vendor=${{ github.repository_owner }}
+            org.opencontainers.image.authors=rclone <https://github.com/rclone>
+            org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}
+            org.opencontainers.image.revision=${{ github.sha }}
+          tags: |
+            type=sha
+            type=ref,event=pr
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=raw,value=beta,enable={{is_default_branch}}
+
+      - name: Extract Tags
+        shell: python
+        run: |
+          import json, os
+
+          metadata_json = os.environ['DOCKER_METADATA_OUTPUT_JSON']
+          metadata = json.loads(metadata_json)
+
+          tags = [f"--tag '{tag}'" for tag in metadata["tags"]]
+          tags_string = " ".join(tags)
+
+          with open(os.environ['GITHUB_ENV'], 'a') as env:
+              env.write(f"TAGS={tags_string}\n")
+
+      - name: Extract Annotations
+        shell: python
+        run: |
+          import json, os
+
+          metadata_json = os.environ['DOCKER_METADATA_OUTPUT_JSON']
+          metadata = json.loads(metadata_json)
+
+          annotations = [f"--annotation '{annotation}'" for annotation in metadata["annotations"]]
+          annotations_string = " ".join(annotations)
+
+          with open(os.environ['GITHUB_ENV'], 'a') as env:
+              env.write(f"ANNOTATIONS={annotations_string}\n")
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          # This is the user that triggered the Workflow. In this case, it will
+          # either be the user whom created the Release or manually triggered
+          # the workflow_dispatch.
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Create & Push Manifest List
+        working-directory: /tmp/digests
+        run: |
+          docker buildx imagetools create \
+          ${{ env.TAGS }} \
+          ${{ env.ANNOTATIONS }} \
+          $(printf 'ghcr.io/${{ env.REPO_NAME }}@sha256:%s ' *)
+
+      - name: Inspect and Run Multi-Platform Image
+        run: |
+          docker buildx imagetools inspect --raw ${{ env.REPO_NAME }}:${{ steps.meta.outputs.version }}
+          docker buildx imagetools inspect --raw ghcr.io/${{ env.REPO_NAME }}:${{ steps.meta.outputs.version }}
+          docker run --rm ghcr.io/${{ env.REPO_NAME }}:${{ steps.meta.outputs.version }} version

.github/workflows/build_publish_docker_plugin.yml

@@ -0,0 +1,49 @@
+---
+# Github Actions release for rclone
+# -*- compile-command: "yamllint -f parsable build_publish_docker_plugin.yml" -*-
+
+name: Release Build for Docker Plugin
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      manual:
+        description: Manual run (bypass default conditions)
+        type: boolean
+        default: true
+
+jobs:
+  build_docker_volume_plugin:
+    if: inputs.manual || github.repository == 'rclone/rclone'
+    name: Build docker plugin job
+    runs-on: ubuntu-latest
+    steps:
+      - name: Free some space
+        shell: bash
+        run: |
+          df -h .
+          # Remove android SDK
+          sudo rm -rf /usr/local/lib/android || true
+          # Remove .net runtime
+          sudo rm -rf /usr/share/dotnet || true
+          df -h .
+      - name: Checkout master
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Build and publish docker plugin
+        shell: bash
+        run: |
+          VER=${GITHUB_REF#refs/tags/}
+          PLUGIN_USER=rclone
+          docker login --username ${{ secrets.DOCKER_HUB_USER }} \
+                       --password-stdin <<< "${{ secrets.DOCKER_HUB_PASSWORD }}"
+          for PLUGIN_ARCH in amd64 arm64 arm/v7 arm/v6 ;do
+              export PLUGIN_USER PLUGIN_ARCH
+              make docker-plugin PLUGIN_TAG=${PLUGIN_ARCH/\//-}
+              make docker-plugin PLUGIN_TAG=${PLUGIN_ARCH/\//-}-${VER#v}
+          done
+          make docker-plugin PLUGIN_ARCH=amd64 PLUGIN_TAG=latest
+          make docker-plugin PLUGIN_ARCH=amd64 PLUGIN_TAG=${VER#v}

.github/workflows/build_publish_release_docker_image.yml

@@ -1,77 +0,0 @@
-name: Docker release build
-
-on:
-  release:
-    types: [published]
-
-jobs:
-    build:
-        if: github.repository == 'rclone/rclone'
-        runs-on: ubuntu-latest
-        name: Build image job
-        steps:
-            - name: Free some space
-              shell: bash
-              run: |
-                df -h .
-                # Remove android SDK
-                sudo rm -rf /usr/local/lib/android || true
-                # Remove .net runtime
-                sudo rm -rf /usr/share/dotnet || true
-                df -h .
-            - name: Checkout master
-              uses: actions/checkout@v4
-              with:
-                fetch-depth: 0
-            - name: Get actual patch version
-              id: actual_patch_version
-              run: echo ::set-output name=ACTUAL_PATCH_VERSION::$(echo $GITHUB_REF | cut -d / -f 3 | sed 's/v//g')
-            - name: Get actual minor version
-              id: actual_minor_version
-              run: echo ::set-output name=ACTUAL_MINOR_VERSION::$(echo $GITHUB_REF | cut -d / -f 3 | sed 's/v//g' | cut -d "." -f 1,2)
-            - name: Get actual major version
-              id: actual_major_version
-              run: echo ::set-output name=ACTUAL_MAJOR_VERSION::$(echo $GITHUB_REF | cut -d / -f 3 | sed 's/v//g' | cut -d "." -f 1)
-            - name: Build and publish image
-              uses: ilteoood/docker_buildx@1.1.0
-              with:
-                tag: latest,${{ steps.actual_patch_version.outputs.ACTUAL_PATCH_VERSION }},${{ steps.actual_minor_version.outputs.ACTUAL_MINOR_VERSION }},${{ steps.actual_major_version.outputs.ACTUAL_MAJOR_VERSION }}
-                imageName: rclone/rclone
-                platform: linux/amd64,linux/386,linux/arm64,linux/arm/v7,linux/arm/v6
-                publish: true
-                dockerHubUser: ${{ secrets.DOCKER_HUB_USER }}
-                dockerHubPassword: ${{ secrets.DOCKER_HUB_PASSWORD }}
-
-    build_docker_volume_plugin:
-        if: github.repository == 'rclone/rclone'
-        needs: build
-        runs-on: ubuntu-latest
-        name: Build docker plugin job
-        steps:
-            - name: Free some space
-              shell: bash
-              run: |
-                df -h .
-                # Remove android SDK
-                sudo rm -rf /usr/local/lib/android || true
-                # Remove .net runtime
-                sudo rm -rf /usr/share/dotnet || true
-                df -h .
-            - name: Checkout master
-              uses: actions/checkout@v4
-              with:
-                fetch-depth: 0
-            - name: Build and publish docker plugin
-              shell: bash
-              run: |
-                VER=${GITHUB_REF#refs/tags/}
-                PLUGIN_USER=rclone
-                docker login --username ${{ secrets.DOCKER_HUB_USER }} \
-                             --password-stdin <<< "${{ secrets.DOCKER_HUB_PASSWORD }}"
-                for PLUGIN_ARCH in amd64 arm64 arm/v7 arm/v6 ;do
-                    export PLUGIN_USER PLUGIN_ARCH
-                    make docker-plugin PLUGIN_TAG=${PLUGIN_ARCH/\//-}
-                    make docker-plugin PLUGIN_TAG=${PLUGIN_ARCH/\//-}-${VER#v}
-                done
-                make docker-plugin PLUGIN_ARCH=amd64 PLUGIN_TAG=latest
-                make docker-plugin PLUGIN_ARCH=amd64 PLUGIN_TAG=${VER#v}

.github/workflows/lint.yml

@@ -0,0 +1,104 @@
+---
+# Github Actions build for rclone
+# -*- compile-command: "yamllint -f parsable lint.yml" -*-
+
+name: Lint & Vulnerability Check
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
+# Trigger the workflow on push or pull request
+on:
+  push:
+    branches:
+      - '**'
+    tags:
+      - '**'
+  pull_request:
+  workflow_dispatch:
+    inputs:
+      manual:
+        description: Manual run (bypass default conditions)
+        type: boolean
+        default: true
+
+jobs:
+  lint:
+    if: inputs.manual || (github.repository == 'rclone/rclone' && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name))
+    timeout-minutes: 30
+    name: "lint"
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Get runner parameters
+        id: get-runner-parameters
+        shell: bash
+        run: |
+          echo "year-week=$(/bin/date -u "+%Y%V")" >> $GITHUB_OUTPUT
+          echo "runner-os-version=$ImageOS" >> $GITHUB_OUTPUT
+
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install Go
+        id: setup-go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '>=1.23.0-rc.1'
+          check-latest: true
+          cache: false
+
+      - name: Cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/go/pkg/mod
+            ~/.cache/go-build
+            ~/.cache/golangci-lint
+          key: golangci-lint-${{ steps.get-runner-parameters.outputs.runner-os-version }}-go${{ steps.setup-go.outputs.go-version }}-${{ steps.get-runner-parameters.outputs.year-week }}-${{ hashFiles('go.sum') }}
+          restore-keys: golangci-lint-${{ steps.get-runner-parameters.outputs.runner-os-version }}-go${{ steps.setup-go.outputs.go-version }}-${{ steps.get-runner-parameters.outputs.year-week }}-
+
+      - name: Code quality test (Linux)
+        uses: golangci/golangci-lint-action@v6
+        with:
+          version: latest
+          skip-cache: true
+
+      - name: Code quality test (Windows)
+        uses: golangci/golangci-lint-action@v6
+        env:
+          GOOS: "windows"
+        with:
+          version: latest
+          skip-cache: true
+
+      - name: Code quality test (macOS)
+        uses: golangci/golangci-lint-action@v6
+        env:
+          GOOS: "darwin"
+        with:
+          version: latest
+          skip-cache: true
+
+      - name: Code quality test (FreeBSD)
+        uses: golangci/golangci-lint-action@v6
+        env:
+          GOOS: "freebsd"
+        with:
+          version: latest
+          skip-cache: true
+
+      - name: Code quality test (OpenBSD)
+        uses: golangci/golangci-lint-action@v6
+        env:
+          GOOS: "openbsd"
+        with:
+          version: latest
+          skip-cache: true
+
+      - name: Install govulncheck
+        run: go install golang.org/x/vuln/cmd/govulncheck@latest
+
+      - name: Scan for vulnerabilities
+        run: govulncheck ./...

.golangci.yml

@@ -13,6 +13,7 @@ linters:
     - stylecheck
     - unused
     - misspell
+    - gocritic
     #- prealloc
     #- maligned
   disable-all: true
@@ -98,3 +99,46 @@ linters-settings:
     # Only enable the checks performed by the staticcheck stand-alone tool,
     # as documented here: https://staticcheck.io/docs/configuration/options/#checks
     checks: ["all", "-ST1000", "-ST1003", "-ST1016", "-ST1020", "-ST1021", "-ST1022", "-ST1023"]
+  gocritic:
+    # Enable all default checks with some exceptions and some additions (commented).
+    # Cannot use both enabled-checks and disabled-checks, so must specify all to be used.
+    disable-all: true
+    enabled-checks:
+      #- appendAssign # Enabled by default
+      - argOrder
+      - assignOp
+      - badCall
+      - badCond
+      #- captLocal # Enabled by default
+      - caseOrder
+      - codegenComment
+      #- commentFormatting # Enabled by default
+      - defaultCaseOrder
+      - deprecatedComment
+      - dupArg
+      - dupBranchBody
+      - dupCase
+      - dupSubExpr
+      - elseif
+      #- exitAfterDefer # Enabled by default
+      - flagDeref
+      - flagName
+      #- ifElseChain # Enabled by default
+      - mapKey
+      - newDeref
+      - offBy1
+      - regexpMust
+      - ruleguard # Not enabled by default
+      #- singleCaseSwitch # Enabled by default
+      - sloppyLen
+      - sloppyTypeAssert
+      - switchTrue
+      - typeSwitchVar
+      - underef
+      - unlambda
+      - unslice
+      - valSwap
+      - wrapperFunc
+    settings:
+      ruleguard:
+        rules: "${configDir}/bin/rules.go"

CONTRIBUTING.md

@@ -209,7 +209,7 @@ altogether with an HTML report and test retries then from the
 project root:
 
     go install github.com/rclone/rclone/fstest/test_all
-    test_all -backend drive
+    test_all -backends drive
 
 ### Full integration testing
 
@@ -490,7 +490,7 @@ alphabetical order of full name of remote (e.g. `drive` is ordered as
 - `docs/content/remote.md` - main docs page (note the backend options are automatically added to this file with `make backenddocs`)
     - make sure this has the `autogenerated options` comments in (see your reference backend docs)
     - update them in your backend with `bin/make_backend_docs.py remote`
-- `docs/content/overview.md` - overview docs
+- `docs/content/overview.md` - overview docs - add an entry into the Features table and the Optional Features table.
 - `docs/content/docs.md` - list of remotes in config section
 - `docs/content/_index.md` - front page of rclone.org
 - `docs/layouts/chrome/navbar.html` - add it to the website navigation
@@ -508,7 +508,7 @@ You'll need to modify the following files
 - `backend/s3/s3.go`
     - Add the provider to `providerOption` at the top of the file
     - Add endpoints and other config for your provider gated on the provider in `fs.RegInfo`.
-    - Exclude your provider from genric config questions (eg `region` and `endpoint).
+    - Exclude your provider from generic config questions (eg `region` and `endpoint).
     - Add the provider to the `setQuirks` function - see the documentation there.
 - `docs/content/s3.md`
     - Add the provider at the top of the page.
@@ -571,4 +571,18 @@ Then, run `go build -buildmode=plugin -o PLUGIN_NAME.so .` to build the plugin.
 
 [Go reference](https://godoc.org/github.com/rclone/rclone/lib/plugin)
 
-[Minimal example](https://gist.github.com/terorie/21b517ee347828e899e1913efc1d684f)
+## Keeping a backend or command out of tree
+
+Rclone was designed to be modular so it is very easy to keep a backend
+or a command out of the main rclone source tree.
+
+So for example if you had a backend which accessed your proprietary
+systems or a command which was specialised for your needs you could
+add them out of tree.
+
+This may be easier than using a plugin and is supported on all
+platforms not just macOS and Linux.
+
+This is explained further in https://github.com/rclone/rclone_out_of_tree_example
+which has an example of an out of tree backend `ram` (which is a
+renamed version of the `memory` backend).

Dockerfile

@@ -1,19 +1,47 @@
 FROM golang:alpine AS builder
 
-COPY . /go/src/github.com/rclone/rclone/
+ARG CGO_ENABLED=0
+
 WORKDIR /go/src/github.com/rclone/rclone/
 
-RUN apk add --no-cache make bash gawk git
-RUN \
-  CGO_ENABLED=0 \
-  make
-RUN ./rclone version
+RUN echo "**** Set Go Environment Variables ****" && \
+    go env -w GOCACHE=/root/.cache/go-build
+
+RUN echo "**** Install Dependencies ****" && \
+    apk add --no-cache \
+        make \
+        bash \
+        gawk \
+        git
+
+COPY go.mod .
+COPY go.sum .
+
+RUN echo "**** Download Go Dependencies ****" && \
+    go mod download -x
+
+RUN echo "**** Verify Go Dependencies ****" && \
+    go mod verify
+
+COPY . .
+
+RUN --mount=type=cache,target=/root/.cache/go-build,sharing=locked \
+    echo "**** Build Binary ****" && \
+    make
+
+RUN echo "**** Print Version Binary ****" && \
+    ./rclone version
 
 # Begin final image
 FROM alpine:latest
 
-RUN apk --no-cache add ca-certificates fuse3 tzdata && \
-  echo "user_allow_other" >> /etc/fuse.conf
+RUN echo "**** Install Dependencies ****" && \
+    apk add --no-cache \
+        ca-certificates \
+        fuse3 \
+        tzdata && \
+    echo "Enable user_allow_other in fuse" && \
+    echo "user_allow_other" >> /etc/fuse.conf
 
 COPY --from=builder /go/src/github.com/rclone/rclone/rclone /usr/local/bin/
 

MAINTAINERS.md

@@ -21,6 +21,8 @@ Current active maintainers of rclone are:
 | Chun-Hung Tseng  | @henrybear327     | Proton Drive Backend         |
 | Hideo Aoyama     | @boukendesho      | snap packaging               |
 | nielash          | @nielash          | bisync                       |
+| Dan McArdle      | @dmcardle         | gitannex                     |
+| Sam Harrison     | @childish-sambino | filescom                     |
 
 **This is a work in progress Draft**
 

Makefile

@@ -88,13 +88,13 @@ test:	rclone test_all
 
 # Quick test
 quicktest:
-	RCLONE_CONFIG="/notfound" go test $(LDFLAGS) $(BUILDTAGS) ./...
+	RCLONE_CONFIG="/notfound" go test $(BUILDTAGS) ./...
 
 racequicktest:
-	RCLONE_CONFIG="/notfound" go test $(LDFLAGS) $(BUILDTAGS) -cpu=2 -race ./...
+	RCLONE_CONFIG="/notfound" go test $(BUILDTAGS) -cpu=2 -race ./...
 
 compiletest:
-	RCLONE_CONFIG="/notfound" go test $(LDFLAGS) $(BUILDTAGS) -run XXX ./...
+	RCLONE_CONFIG="/notfound" go test $(BUILDTAGS) -run XXX ./...
 
 # Do source code quality checks
 check:	rclone
@@ -144,10 +144,14 @@ MANUAL.txt:	MANUAL.md
 	pandoc -s --from markdown-smart --to plain MANUAL.md -o MANUAL.txt
 
 commanddocs: rclone
-	XDG_CACHE_HOME="" XDG_CONFIG_HOME="" HOME="\$$HOME" USER="\$$USER" rclone gendocs docs/content/
+	-@rmdir -p '$$HOME/.config/rclone'
+	XDG_CACHE_HOME="" XDG_CONFIG_HOME="" HOME="\$$HOME" USER="\$$USER" rclone gendocs --config=/notfound docs/content/
+	@[ ! -e '$$HOME' ] || (echo 'Error: created unwanted directory named $$HOME' && exit 1)
 
 backenddocs: rclone bin/make_backend_docs.py
+	-@rmdir -p '$$HOME/.config/rclone'
 	XDG_CACHE_HOME="" XDG_CONFIG_HOME="" HOME="\$$HOME" USER="\$$USER" ./bin/make_backend_docs.py
+	@[ ! -e '$$HOME' ] || (echo 'Error: created unwanted directory named $$HOME' && exit 1)
 
 rcdocs: rclone
 	bin/make_rc_docs.sh

README.md

@@ -1,20 +1,4 @@
-<div align="center">
-<sup>Special thanks to our sponsor:</sup>
-<br>
-<br>
-<a href="https://www.warp.dev/?utm_source=github&utm_medium=referral&utm_campaign=rclone_20231103">
-  <div>
-    <img src="https://rclone.org/img/logos/warp-github.svg" width="300" alt="Warp">
-  </div>
-  <b>Warp is a modern, Rust-based terminal with AI built in so you and your team can build great software, faster.</b>
-  <div>
-    <sup>Visit warp.dev to learn more.</sup>
-  </div>
-</a>
-<br>
-<hr>
-</div>
-<br>
+
 
 [<img src="https://rclone.org/img/logo_on_light__horizontal_color.svg" width="50%" alt="rclone logo">](https://rclone.org/#gh-light-mode-only)
 [<img src="https://rclone.org/img/logo_on_dark__horizontal_color.svg" width="50%" alt="rclone logo">](https://rclone.org/#gh-dark-mode-only)
@@ -55,14 +39,20 @@ Rclone *("rsync for cloud storage")* is a command-line program to sync files and
   * Dropbox [:page_facing_up:](https://rclone.org/dropbox/)
   * Enterprise File Fabric [:page_facing_up:](https://rclone.org/filefabric/)
   * Fastmail Files [:page_facing_up:](https://rclone.org/webdav/#fastmail-files)
+  * FileLu [:page_facing_up:](https://rclone.org/filelu/)
+  * Files.com [:page_facing_up:](https://rclone.org/filescom/)
+  * FlashBlade [:page_facing_up:](https://rclone.org/s3/#pure-storage-flashblade)
   * FTP [:page_facing_up:](https://rclone.org/ftp/)
+  * GoFile [:page_facing_up:](https://rclone.org/gofile/)
   * Google Cloud Storage [:page_facing_up:](https://rclone.org/googlecloudstorage/)
   * Google Drive [:page_facing_up:](https://rclone.org/drive/)
   * Google Photos [:page_facing_up:](https://rclone.org/googlephotos/)
   * HDFS (Hadoop Distributed Filesystem) [:page_facing_up:](https://rclone.org/hdfs/)
+  * Hetzner Storage Box [:page_facing_up:](https://rclone.org/sftp/#hetzner-storage-box)
   * HiDrive [:page_facing_up:](https://rclone.org/hidrive/)
   * HTTP [:page_facing_up:](https://rclone.org/http/)
   * Huawei Cloud Object Storage Service(OBS) [:page_facing_up:](https://rclone.org/s3/#huawei-obs)
+  * iCloud Drive [:page_facing_up:](https://rclone.org/iclouddrive/)
   * ImageKit [:page_facing_up:](https://rclone.org/imagekit/)
   * Internet Archive [:page_facing_up:](https://rclone.org/internetarchive/)
   * Jottacloud [:page_facing_up:](https://rclone.org/jottacloud/)
@@ -76,7 +66,8 @@ Rclone *("rsync for cloud storage")* is a command-line program to sync files and
   * Magalu Object Storage [:page_facing_up:](https://rclone.org/s3/#magalu)
   * Mail.ru Cloud [:page_facing_up:](https://rclone.org/mailru/)
   * Memset Memstore [:page_facing_up:](https://rclone.org/swift/)
-  * Mega [:page_facing_up:](https://rclone.org/mega/)
+  * MEGA [:page_facing_up:](https://rclone.org/mega/)
+  * MEGA S4 Object Storage [:page_facing_up:](https://rclone.org/s3/#mega)
   * Memory [:page_facing_up:](https://rclone.org/memory/)
   * Microsoft Azure Blob Storage [:page_facing_up:](https://rclone.org/azureblob/)
   * Microsoft Azure Files Storage [:page_facing_up:](https://rclone.org/azurefiles/)
@@ -89,10 +80,12 @@ Rclone *("rsync for cloud storage")* is a command-line program to sync files and
   * OpenStack Swift [:page_facing_up:](https://rclone.org/swift/)
   * Oracle Cloud Storage [:page_facing_up:](https://rclone.org/swift/)
   * Oracle Object Storage [:page_facing_up:](https://rclone.org/oracleobjectstorage/)
+  * Outscale [:page_facing_up:](https://rclone.org/s3/#outscale)
   * ownCloud [:page_facing_up:](https://rclone.org/webdav/#owncloud)
   * pCloud [:page_facing_up:](https://rclone.org/pcloud/)
   * Petabox [:page_facing_up:](https://rclone.org/s3/#petabox)
   * PikPak [:page_facing_up:](https://rclone.org/pikpak/)
+  * Pixeldrain [:page_facing_up:](https://rclone.org/pixeldrain/)
   * premiumize.me [:page_facing_up:](https://rclone.org/premiumizeme/)
   * put.io [:page_facing_up:](https://rclone.org/putio/)
   * Proton Drive [:page_facing_up:](https://rclone.org/protondrive/)
@@ -101,9 +94,12 @@ Rclone *("rsync for cloud storage")* is a command-line program to sync files and
   * Quatrix [:page_facing_up:](https://rclone.org/quatrix/)
   * Rackspace Cloud Files [:page_facing_up:](https://rclone.org/swift/)
   * RackCorp Object Storage [:page_facing_up:](https://rclone.org/s3/#RackCorp)
+  * rsync.net [:page_facing_up:](https://rclone.org/sftp/#rsync-net)
   * Scaleway [:page_facing_up:](https://rclone.org/s3/#scaleway)
   * Seafile [:page_facing_up:](https://rclone.org/seafile/)
+  * Seagate Lyve Cloud [:page_facing_up:](https://rclone.org/s3/#lyve)
   * SeaweedFS [:page_facing_up:](https://rclone.org/s3/#seaweedfs)
+  * Selectel Object Storage [:page_facing_up:](https://rclone.org/s3/#selectel)
   * SFTP [:page_facing_up:](https://rclone.org/sftp/)
   * SMB / CIFS [:page_facing_up:](https://rclone.org/smb/)
   * StackPath [:page_facing_up:](https://rclone.org/s3/#stackpath)
@@ -116,6 +112,7 @@ Rclone *("rsync for cloud storage")* is a command-line program to sync files and
   * WebDAV [:page_facing_up:](https://rclone.org/webdav/)
   * Yandex Disk [:page_facing_up:](https://rclone.org/yandex/)
   * Zoho WorkDrive [:page_facing_up:](https://rclone.org/zoho/)
+  * Zata.ai [:page_facing_up:](https://rclone.org/s3/#Zata)
   * The local filesystem [:page_facing_up:](https://rclone.org/local/)
 
 Please see [the full list of all storage providers and their features](https://rclone.org/overview/)

RELEASE.md

@@ -47,13 +47,20 @@ Early in the next release cycle update the dependencies.
   * `git commit -a -v -m "build: update all dependencies"`
 
 If the `make updatedirect` upgrades the version of go in the `go.mod`
-then go to manual mode. `go1.20` here is the lowest supported version
+
+    go 1.22.0
+    
+then go to manual mode. `go1.22` here is the lowest supported version
 in the `go.mod`.
 
+If `make updatedirect` added a `toolchain` directive then remove it.
+We don't want to force a toolchain on our users. Linux packagers are
+often using a version of Go that is a few versions out of date.
+
 ```
 go list -m -f '{{if not (or .Main .Indirect)}}{{.Path}}{{end}}' all > /tmp/potential-upgrades
 go get -d $(cat /tmp/potential-upgrades)
-go mod tidy -go=1.20 -compat=1.20
+go mod tidy -go=1.22 -compat=1.22
 ```
 
 If the `go mod tidy` fails use the output from it to remove the
@@ -86,6 +93,16 @@ build.
 Once it compiles locally, push it on a test branch and commit fixes
 until the tests pass.
 
+### Major versions
+
+The above procedure will not upgrade major versions, so v2 to v3.
+However this tool can show which major versions might need to be
+upgraded:
+
+    go run github.com/icholy/gomajor@latest list -major
+
+Expect API breakage when updating major versions.
+
 ## Tidy beta
 
 At some point after the release run
@@ -114,8 +131,8 @@ Now
 
   * git co ${BASE_TAG}-stable
   * git cherry-pick any fixes
-  * Do the steps as above
   * make startstable
+  * Do the steps as above
   * git co master
   * `#` cherry pick the changes to the changelog - check the diff to make sure it is correct
   * git checkout ${BASE_TAG}-stable docs/content/changelog.md
@@ -168,6 +185,8 @@ docker buildx build -t rclone/rclone:testing --progress=plain --platform linux/a
 
 To make a full build then set the tags correctly and add `--push`
 
+Note that you can't only build one architecture - you need to build them all.
+
 ```
-docker buildx build --platform linux/amd64,linux/386,linux/arm64,linux/arm/v7 -t rclone/rclone:1.54.1 -t rclone/rclone:1.54 -t rclone/rclone:1 -t rclone/rclone:latest --push .
+docker buildx build --platform linux/amd64,linux/386,linux/arm64,linux/arm/v7,linux/arm/v6 -t rclone/rclone:1.54.1 -t rclone/rclone:1.54 -t rclone/rclone:1 -t rclone/rclone:latest --push .
 ```

VERSION

@@ -1 +1 @@
-v1.68.0
+v1.71.0

backend/alias/alias_internal_test.go

@@ -23,8 +23,8 @@ func prepare(t *testing.T, root string) {
 	configfile.Install()
 
 	// Configure the remote
-	config.FileSet(remoteName, "type", "alias")
-	config.FileSet(remoteName, "remote", root)
+	config.FileSetValue(remoteName, "type", "alias")
+	config.FileSetValue(remoteName, "remote", root)
 }
 
 func TestNewFS(t *testing.T) {

backend/all/all.go

@@ -10,20 +10,26 @@ import (
 	_ "github.com/rclone/rclone/backend/box"
 	_ "github.com/rclone/rclone/backend/cache"
 	_ "github.com/rclone/rclone/backend/chunker"
+	_ "github.com/rclone/rclone/backend/cloudinary"
 	_ "github.com/rclone/rclone/backend/combine"
 	_ "github.com/rclone/rclone/backend/compress"
 	_ "github.com/rclone/rclone/backend/crypt"
+	_ "github.com/rclone/rclone/backend/doi"
 	_ "github.com/rclone/rclone/backend/drive"
 	_ "github.com/rclone/rclone/backend/dropbox"
 	_ "github.com/rclone/rclone/backend/fichier"
 	_ "github.com/rclone/rclone/backend/filefabric"
+	_ "github.com/rclone/rclone/backend/filelu"
+	_ "github.com/rclone/rclone/backend/filescom"
 	_ "github.com/rclone/rclone/backend/ftp"
+	_ "github.com/rclone/rclone/backend/gofile"
 	_ "github.com/rclone/rclone/backend/googlecloudstorage"
 	_ "github.com/rclone/rclone/backend/googlephotos"
 	_ "github.com/rclone/rclone/backend/hasher"
 	_ "github.com/rclone/rclone/backend/hdfs"
 	_ "github.com/rclone/rclone/backend/hidrive"
 	_ "github.com/rclone/rclone/backend/http"
+	_ "github.com/rclone/rclone/backend/iclouddrive"
 	_ "github.com/rclone/rclone/backend/imagekit"
 	_ "github.com/rclone/rclone/backend/internetarchive"
 	_ "github.com/rclone/rclone/backend/jottacloud"
@@ -39,6 +45,7 @@ import (
 	_ "github.com/rclone/rclone/backend/oracleobjectstorage"
 	_ "github.com/rclone/rclone/backend/pcloud"
 	_ "github.com/rclone/rclone/backend/pikpak"
+	_ "github.com/rclone/rclone/backend/pixeldrain"
 	_ "github.com/rclone/rclone/backend/premiumizeme"
 	_ "github.com/rclone/rclone/backend/protondrive"
 	_ "github.com/rclone/rclone/backend/putio"

backend/azureblob/azureblob_internal_test.go

@@ -3,16 +3,149 @@
 package azureblob
 
 import (
+	"context"
+	"encoding/base64"
+	"strings"
 	"testing"
 
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fstest"
+	"github.com/rclone/rclone/fstest/fstests"
+	"github.com/rclone/rclone/lib/random"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
-func (f *Fs) InternalTest(t *testing.T) {
-	// Check first feature flags are set on this
-	// remote
+func TestBlockIDCreator(t *testing.T) {
+	// Check creation and random number
+	bic, err := newBlockIDCreator()
+	require.NoError(t, err)
+	bic2, err := newBlockIDCreator()
+	require.NoError(t, err)
+	assert.NotEqual(t, bic.random, bic2.random)
+	assert.NotEqual(t, bic.random, [8]byte{})
+
+	// Set random to known value for tests
+	bic.random = [8]byte{1, 2, 3, 4, 5, 6, 7, 8}
+	chunkNumber := uint64(0xFEDCBA9876543210)
+
+	// Check creation of ID
+	want := base64.StdEncoding.EncodeToString([]byte{0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10, 1, 2, 3, 4, 5, 6, 7, 8})
+	assert.Equal(t, "/ty6mHZUMhABAgMEBQYHCA==", want)
+	got := bic.newBlockID(chunkNumber)
+	assert.Equal(t, want, got)
+	assert.Equal(t, "/ty6mHZUMhABAgMEBQYHCA==", got)
+
+	// Test checkID is working
+	assert.NoError(t, bic.checkID(chunkNumber, got))
+	assert.ErrorContains(t, bic.checkID(chunkNumber, "$"+got), "illegal base64")
+	assert.ErrorContains(t, bic.checkID(chunkNumber, "AAAA"+got), "bad block ID length")
+	assert.ErrorContains(t, bic.checkID(chunkNumber+1, got), "expecting decoded")
+	assert.ErrorContains(t, bic2.checkID(chunkNumber, got), "random bytes")
+}
+
+func (f *Fs) testFeatures(t *testing.T) {
+	// Check first feature flags are set on this remote
 	enabled := f.Features().SetTier
 	assert.True(t, enabled)
 	enabled = f.Features().GetTier
 	assert.True(t, enabled)
 }
+
+type ReadSeekCloser struct {
+	*strings.Reader
+}
+
+func (r *ReadSeekCloser) Close() error {
+	return nil
+}
+
+// Stage a block at remote but don't commit it
+func (f *Fs) stageBlockWithoutCommit(ctx context.Context, t *testing.T, remote string) {
+	var (
+		containerName, blobPath = f.split(remote)
+		containerClient         = f.cntSVC(containerName)
+		blobClient              = containerClient.NewBlockBlobClient(blobPath)
+		data                    = "uncommitted data"
+		blockID                 = "1"
+		blockIDBase64           = base64.StdEncoding.EncodeToString([]byte(blockID))
+	)
+	r := &ReadSeekCloser{strings.NewReader(data)}
+	_, err := blobClient.StageBlock(ctx, blockIDBase64, r, nil)
+	require.NoError(t, err)
+
+	// Verify the block is staged but not committed
+	blockList, err := blobClient.GetBlockList(ctx, blockblob.BlockListTypeAll, nil)
+	require.NoError(t, err)
+	found := false
+	for _, block := range blockList.UncommittedBlocks {
+		if *block.Name == blockIDBase64 {
+			found = true
+			break
+		}
+	}
+	require.True(t, found, "Block ID not found in uncommitted blocks")
+}
+
+// This tests uploading a blob where it has uncommitted blocks with a different ID size.
+//
+// https://gauravmantri.com/2013/05/18/windows-azure-blob-storage-dealing-with-the-specified-blob-or-block-content-is-invalid-error/
+//
+// TestIntegration/FsMkdir/FsPutFiles/Internal/WriteUncommittedBlocks
+func (f *Fs) testWriteUncommittedBlocks(t *testing.T) {
+	var (
+		ctx    = context.Background()
+		remote = "testBlob"
+	)
+
+	// Multipart copy the blob please
+	oldUseCopyBlob, oldCopyCutoff := f.opt.UseCopyBlob, f.opt.CopyCutoff
+	f.opt.UseCopyBlob = false
+	f.opt.CopyCutoff = f.opt.ChunkSize
+	defer func() {
+		f.opt.UseCopyBlob, f.opt.CopyCutoff = oldUseCopyBlob, oldCopyCutoff
+	}()
+
+	// Create a blob with uncommitted blocks
+	f.stageBlockWithoutCommit(ctx, t, remote)
+
+	// Now attempt to overwrite the block with a different sized block ID to provoke this error
+
+	// Check the object does not exist
+	_, err := f.NewObject(ctx, remote)
+	require.Equal(t, fs.ErrorObjectNotFound, err)
+
+	// Upload a multipart file over the block with uncommitted chunks of a different ID size
+	size := 4*int(f.opt.ChunkSize) - 1
+	contents := random.String(size)
+	item := fstest.NewItem(remote, contents, fstest.Time("2001-05-06T04:05:06.499Z"))
+	o := fstests.PutTestContents(ctx, t, f, &item, contents, true)
+
+	// Check size
+	assert.Equal(t, int64(size), o.Size())
+
+	// Create a new blob with uncommitted blocks
+	newRemote := "testBlob2"
+	f.stageBlockWithoutCommit(ctx, t, newRemote)
+
+	// Copy over that block
+	dst, err := f.Copy(ctx, o, newRemote)
+	require.NoError(t, err)
+
+	// Check basics
+	assert.Equal(t, int64(size), dst.Size())
+	assert.Equal(t, newRemote, dst.Remote())
+
+	// Check contents
+	gotContents := fstests.ReadObject(ctx, t, dst, -1)
+	assert.Equal(t, contents, gotContents)
+
+	// Remove the object
+	require.NoError(t, dst.Remove(ctx))
+}
+
+func (f *Fs) InternalTest(t *testing.T) {
+	t.Run("Features", f.testFeatures)
+	t.Run("WriteUncommittedBlocks", f.testWriteUncommittedBlocks)
+}

backend/azureblob/azureblob_test.go

@@ -15,13 +15,17 @@ import (
 
 // TestIntegration runs integration tests against the remote
 func TestIntegration(t *testing.T) {
+	name := "TestAzureBlob"
 	fstests.Run(t, &fstests.Opt{
-		RemoteName:  "TestAzureBlob:",
+		RemoteName:  name + ":",
 		NilObject:   (*Object)(nil),
 		TiersToTest: []string{"Hot", "Cool", "Cold"},
 		ChunkedUpload: fstests.ChunkedUploadConfig{
 			MinChunkSize: defaultChunkSize,
 		},
+		ExtraConfig: []fstests.ExtraConfigItem{
+			{Name: name, Key: "use_copy_blob", Value: "false"},
+		},
 	})
 }
 
@@ -40,6 +44,7 @@ func TestIntegration2(t *testing.T) {
 		},
 		ExtraConfig: []fstests.ExtraConfigItem{
 			{Name: name, Key: "directory_markers", Value: "true"},
+			{Name: name, Key: "use_copy_blob", Value: "false"},
 		},
 	})
 }
@@ -48,8 +53,13 @@ func (f *Fs) SetUploadChunkSize(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
 	return f.setUploadChunkSize(cs)
 }
 
+func (f *Fs) SetCopyCutoff(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
+	return f.setCopyCutoff(cs)
+}
+
 var (
 	_ fstests.SetUploadChunkSizer = (*Fs)(nil)
+	_ fstests.SetCopyCutoffer     = (*Fs)(nil)
 )
 
 func TestValidateAccessTier(t *testing.T) {

backend/azurefiles/azurefiles.go

@@ -237,6 +237,30 @@ msi_client_id, or msi_mi_res_id parameters.`,
 			Help:      "Azure resource ID of the user-assigned MSI to use, if any.\n\nLeave blank if msi_client_id or msi_object_id specified.",
 			Advanced:  true,
 			Sensitive: true,
+		}, {
+			Name: "disable_instance_discovery",
+			Help: `Skip requesting Microsoft Entra instance metadata
+This should be set true only by applications authenticating in
+disconnected clouds, or private clouds such as Azure Stack.
+It determines whether rclone requests Microsoft Entra instance
+metadata from ` + "`https://login.microsoft.com/`" + ` before
+authenticating.
+Setting this to true will skip this request, making you responsible
+for ensuring the configured authority is valid and trustworthy.
+`,
+			Default:  false,
+			Advanced: true,
+		}, {
+			Name: "use_az",
+			Help: `Use Azure CLI tool az for authentication
+Set to use the [Azure CLI tool az](https://learn.microsoft.com/en-us/cli/azure/)
+as the sole means of authentication.
+Setting this can be useful if you wish to use the az CLI on a host with
+a System Managed Identity that you do not want to use.
+Don't set env_auth at the same time.
+`,
+			Default:  false,
+			Advanced: true,
 		}, {
 			Name:     "endpoint",
 			Help:     "Endpoint for the service.\n\nLeave blank normally.",
@@ -319,10 +343,12 @@ type Options struct {
 	Username                   string               `config:"username"`
 	Password                   string               `config:"password"`
 	ServicePrincipalFile       string               `config:"service_principal_file"`
+	DisableInstanceDiscovery   bool                 `config:"disable_instance_discovery"`
 	UseMSI                     bool                 `config:"use_msi"`
 	MSIObjectID                string               `config:"msi_object_id"`
 	MSIClientID                string               `config:"msi_client_id"`
 	MSIResourceID              string               `config:"msi_mi_res_id"`
+	UseAZ                      bool                 `config:"use_az"`
 	Endpoint                   string               `config:"endpoint"`
 	ChunkSize                  fs.SizeSuffix        `config:"chunk_size"`
 	MaxStreamSize              fs.SizeSuffix        `config:"max_stream_size"`
@@ -393,8 +419,10 @@ func newFsFromOptions(ctx context.Context, name, root string, opt *Options) (fs.
 	policyClientOptions := policy.ClientOptions{
 		Transport: newTransporter(ctx),
 	}
+	backup := service.ShareTokenIntentBackup
 	clientOpt := service.ClientOptions{
-		ClientOptions: policyClientOptions,
+		ClientOptions:     policyClientOptions,
+		FileRequestIntent: &backup,
 	}
 
 	// Here we auth by setting one of cred, sharedKeyCred or f.client
@@ -412,7 +440,8 @@ func newFsFromOptions(ctx context.Context, name, root string, opt *Options) (fs.
 		}
 		// Read credentials from the environment
 		options := azidentity.DefaultAzureCredentialOptions{
-			ClientOptions: policyClientOptions,
+			ClientOptions:            policyClientOptions,
+			DisableInstanceDiscovery: opt.DisableInstanceDiscovery,
 		}
 		cred, err = azidentity.NewDefaultAzureCredential(&options)
 		if err != nil {
@@ -423,6 +452,13 @@ func newFsFromOptions(ctx context.Context, name, root string, opt *Options) (fs.
 		if err != nil {
 			return nil, fmt.Errorf("create new shared key credential failed: %w", err)
 		}
+	case opt.UseAZ:
+		var options = azidentity.AzureCLICredentialOptions{}
+		cred, err = azidentity.NewAzureCLICredential(&options)
+		fmt.Println(cred)
+		if err != nil {
+			return nil, fmt.Errorf("failed to create Azure CLI credentials: %w", err)
+		}
 	case opt.SASURL != "":
 		client, err = service.NewClientWithNoCredential(opt.SASURL, &clientOpt)
 		if err != nil {
@@ -480,6 +516,7 @@ func newFsFromOptions(ctx context.Context, name, root string, opt *Options) (fs.
 		}
 	case opt.ClientID != "" && opt.Tenant != "" && opt.Username != "" && opt.Password != "":
 		// User with username and password
+		//nolint:staticcheck // this is deprecated due to Azure policy
 		options := azidentity.UsernamePasswordCredentialOptions{
 			ClientOptions: policyClientOptions,
 		}
@@ -532,6 +569,38 @@ func newFsFromOptions(ctx context.Context, name, root string, opt *Options) (fs.
 		if err != nil {
 			return nil, fmt.Errorf("failed to acquire MSI token: %w", err)
 		}
+	case opt.ClientID != "" && opt.Tenant != "" && opt.MSIClientID != "":
+		// Workload Identity based authentication
+		var options azidentity.ManagedIdentityCredentialOptions
+		options.ID = azidentity.ClientID(opt.MSIClientID)
+
+		msiCred, err := azidentity.NewManagedIdentityCredential(&options)
+		if err != nil {
+			return nil, fmt.Errorf("failed to acquire MSI token: %w", err)
+		}
+
+		getClientAssertions := func(context.Context) (string, error) {
+			token, err := msiCred.GetToken(context.Background(), policy.TokenRequestOptions{
+				Scopes: []string{"api://AzureADTokenExchange"},
+			})
+
+			if err != nil {
+				return "", fmt.Errorf("failed to acquire MSI token: %w", err)
+			}
+
+			return token.Token, nil
+		}
+
+		assertOpts := &azidentity.ClientAssertionCredentialOptions{}
+		cred, err = azidentity.NewClientAssertionCredential(
+			opt.Tenant,
+			opt.ClientID,
+			getClientAssertions,
+			assertOpts)
+
+		if err != nil {
+			return nil, fmt.Errorf("failed to acquire client assertion token: %w", err)
+		}
 	default:
 		return nil, errors.New("no authentication method configured")
 	}
@@ -885,7 +954,7 @@ func (o *Object) setMetadata(resp *file.GetPropertiesResponse) {
 	}
 }
 
-// readMetaData gets the metadata if it hasn't already been fetched
+// getMetadata gets the metadata if it hasn't already been fetched
 func (o *Object) getMetadata(ctx context.Context) error {
 	resp, err := o.fileClient().GetProperties(ctx, nil)
 	if err != nil {
@@ -897,7 +966,7 @@ func (o *Object) getMetadata(ctx context.Context) error {
 
 // Hash returns the MD5 of an object returning a lowercase hex string
 //
-// May make a network request becaue the [fs.List] method does not
+// May make a network request because the [fs.List] method does not
 // return MD5 hashes for DirEntry
 func (o *Object) Hash(ctx context.Context, ty hash.Type) (string, error) {
 	if ty != hash.MD5 {
@@ -1035,12 +1104,10 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		if _, createErr := fc.Create(ctx, size, nil); createErr != nil {
 			return fmt.Errorf("update: unable to create file: %w", createErr)
 		}
-	} else {
+	} else if size != o.Size() {
 		// Resize the file if needed
-		if size != o.Size() {
-			if _, resizeErr := fc.Resize(ctx, size, nil); resizeErr != nil {
-				return fmt.Errorf("update: unable to resize while trying to update: %w ", resizeErr)
-			}
+		if _, resizeErr := fc.Resize(ctx, size, nil); resizeErr != nil {
+			return fmt.Errorf("update: unable to resize while trying to update: %w ", resizeErr)
 		}
 	}
 

backend/azurefiles/azurefiles_internal_test.go

@@ -61,7 +61,7 @@ const chars = "abcdefghijklmnopqrstuvwzyxABCDEFGHIJKLMNOPQRSTUVWZYX"
 
 func randomString(charCount int) string {
 	strBldr := strings.Builder{}
-	for i := 0; i < charCount; i++ {
+	for range charCount {
 		randPos := rand.Int63n(52)
 		strBldr.WriteByte(chars[randPos])
 	}

backend/b2/api/types.go

@@ -42,9 +42,10 @@ type Bucket struct {
 
 // LifecycleRule is a single lifecycle rule
 type LifecycleRule struct {
-	DaysFromHidingToDeleting  *int   `json:"daysFromHidingToDeleting"`
-	DaysFromUploadingToHiding *int   `json:"daysFromUploadingToHiding"`
-	FileNamePrefix            string `json:"fileNamePrefix"`
+	DaysFromHidingToDeleting                        *int   `json:"daysFromHidingToDeleting"`
+	DaysFromUploadingToHiding                       *int   `json:"daysFromUploadingToHiding"`
+	DaysFromStartingToCancelingUnfinishedLargeFiles *int   `json:"daysFromStartingToCancelingUnfinishedLargeFiles"`
+	FileNamePrefix                                  string `json:"fileNamePrefix"`
 }
 
 // Timestamp is a UTC time when this file was uploaded. It is a base
@@ -129,10 +130,10 @@ type AuthorizeAccountResponse struct {
 	AbsoluteMinimumPartSize int      `json:"absoluteMinimumPartSize"` // The smallest possible size of a part of a large file.
 	AccountID               string   `json:"accountId"`               // The identifier for the account.
 	Allowed                 struct { // An object (see below) containing the capabilities of this auth token, and any restrictions on using it.
-		BucketID     string      `json:"bucketId"`     // When present, access is restricted to one bucket.
-		BucketName   string      `json:"bucketName"`   // When present, name of bucket - may be empty
-		Capabilities []string    `json:"capabilities"` // A list of strings, each one naming a capability the key has.
-		NamePrefix   interface{} `json:"namePrefix"`   // When present, access is restricted to files whose names start with the prefix
+		BucketID     string   `json:"bucketId"`     // When present, access is restricted to one bucket.
+		BucketName   string   `json:"bucketName"`   // When present, name of bucket - may be empty
+		Capabilities []string `json:"capabilities"` // A list of strings, each one naming a capability the key has.
+		NamePrefix   any      `json:"namePrefix"`   // When present, access is restricted to files whose names start with the prefix
 	} `json:"allowed"`
 	APIURL              string `json:"apiUrl"`              // The base URL to use for all API calls except for uploading and downloading files.
 	AuthorizationToken  string `json:"authorizationToken"`  // An authorization token to use with all calls, other than b2_authorize_account, that need an Authorization header.

backend/b2/api/types_test.go

@@ -42,11 +42,11 @@ func TestTimestampIsZero(t *testing.T) {
 }
 
 func TestTimestampEqual(t *testing.T) {
-	assert.False(t, emptyT.Equal(emptyT))
+	assert.False(t, emptyT.Equal(emptyT)) //nolint:gocritic // Don't include gocritic when running golangci-lint to avoid dupArg: suspicious method call with the same argument and receiver
 	assert.False(t, t0.Equal(emptyT))
 	assert.False(t, emptyT.Equal(t0))
 	assert.False(t, t0.Equal(t1))
 	assert.False(t, t1.Equal(t0))
-	assert.True(t, t0.Equal(t0))
-	assert.True(t, t1.Equal(t1))
+	assert.True(t, t0.Equal(t0)) //nolint:gocritic // Don't include gocritic when running golangci-lint to avoid dupArg: suspicious method call with the same argument and receiver
+	assert.True(t, t1.Equal(t1)) //nolint:gocritic // Don't include gocritic when running golangci-lint to avoid dupArg: suspicious method call with the same argument and receiver
 }

backend/b2/b2.go

@@ -16,6 +16,7 @@ import (
 	"io"
 	"net/http"
 	"path"
+	"slices"
 	"strconv"
 	"strings"
 	"sync"
@@ -30,7 +31,8 @@ import (
 	"github.com/rclone/rclone/fs/fserrors"
 	"github.com/rclone/rclone/fs/fshttp"
 	"github.com/rclone/rclone/fs/hash"
-	"github.com/rclone/rclone/fs/walk"
+	"github.com/rclone/rclone/fs/list"
+	"github.com/rclone/rclone/fs/operations"
 	"github.com/rclone/rclone/lib/bucket"
 	"github.com/rclone/rclone/lib/encoder"
 	"github.com/rclone/rclone/lib/multipart"
@@ -588,12 +590,7 @@ func (f *Fs) authorizeAccount(ctx context.Context) error {
 
 // hasPermission returns if the current AuthorizationToken has the selected permission
 func (f *Fs) hasPermission(permission string) bool {
-	for _, capability := range f.info.Allowed.Capabilities {
-		if capability == permission {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(f.info.Allowed.Capabilities, permission)
 }
 
 // getUploadURL returns the upload info with the UploadURL and the AuthorizationToken
@@ -921,7 +918,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 // of listing recursively that doing a directory traversal.
 func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (err error) {
 	bucket, directory := f.split(dir)
-	list := walk.NewListRHelper(callback)
+	list := list.NewHelper(callback)
 	listR := func(bucket, directory, prefix string, addBucket bool) error {
 		last := ""
 		return f.list(ctx, bucket, directory, prefix, addBucket, true, 0, f.opt.Versions, false, func(remote string, object *api.File, isDirectory bool) error {
@@ -1274,7 +1271,7 @@ func (f *Fs) purge(ctx context.Context, dir string, oldOnly bool, deleteHidden b
 	toBeDeleted := make(chan *api.File, f.ci.Transfers)
 	var wg sync.WaitGroup
 	wg.Add(f.ci.Transfers)
-	for i := 0; i < f.ci.Transfers; i++ {
+	for range f.ci.Transfers {
 		go func() {
 			defer wg.Done()
 			for object := range toBeDeleted {
@@ -1317,16 +1314,22 @@ func (f *Fs) purge(ctx context.Context, dir string, oldOnly bool, deleteHidden b
 				// Check current version of the file
 				if deleteHidden && object.Action == "hide" {
 					fs.Debugf(remote, "Deleting current version (id %q) as it is a hide marker", object.ID)
-					toBeDeleted <- object
+					if !operations.SkipDestructive(ctx, object.Name, "remove hide marker") {
+						toBeDeleted <- object
+					}
 				} else if deleteUnfinished && object.Action == "start" && isUnfinishedUploadStale(object.UploadTimestamp) {
 					fs.Debugf(remote, "Deleting current version (id %q) as it is a start marker (upload started at %s)", object.ID, time.Time(object.UploadTimestamp).Local())
-					toBeDeleted <- object
+					if !operations.SkipDestructive(ctx, object.Name, "remove pending upload") {
+						toBeDeleted <- object
+					}
 				} else {
 					fs.Debugf(remote, "Not deleting current version (id %q) %q dated %v (%v ago)", object.ID, object.Action, time.Time(object.UploadTimestamp).Local(), time.Since(time.Time(object.UploadTimestamp)))
 				}
 			} else {
 				fs.Debugf(remote, "Deleting (id %q)", object.ID)
-				toBeDeleted <- object
+				if !operations.SkipDestructive(ctx, object.Name, "delete") {
+					toBeDeleted <- object
+				}
 			}
 			last = remote
 			tr.Done(ctx, nil)
@@ -1593,7 +1596,11 @@ func (o *Object) decodeMetaDataRaw(ID, SHA1 string, Size int64, UploadTimestamp
 	o.size = Size
 	// Use the UploadTimestamp if can't get file info
 	o.modTime = time.Time(UploadTimestamp)
-	return o.parseTimeString(Info[timeKey])
+	err = o.parseTimeString(Info[timeKey])
+	if err != nil {
+		return err
+	}
+	return nil
 }
 
 // decodeMetaData sets the metadata in the object from an api.File
@@ -1666,6 +1673,21 @@ func (o *Object) getMetaData(ctx context.Context) (info *api.File, err error) {
 			return o.getMetaDataListing(ctx)
 		}
 	}
+
+	// If using versionAt we need to list the find the correct version.
+	if o.fs.opt.VersionAt.IsSet() {
+		info, err := o.getMetaDataListing(ctx)
+		if err != nil {
+			return nil, err
+		}
+
+		if info.Action == "hide" {
+			// Rerturn object not found error if the current version is deleted.
+			return nil, fs.ErrorObjectNotFound
+		}
+		return info, nil
+	}
+
 	_, info, err = o.getOrHead(ctx, "HEAD", nil)
 	return info, err
 }
@@ -1695,6 +1717,16 @@ func timeString(modTime time.Time) string {
 	return strconv.FormatInt(modTime.UnixNano()/1e6, 10)
 }
 
+// parseTimeStringHelper converts a decimal string number of milliseconds
+// elapsed since January 1, 1970 UTC into a time.Time
+func parseTimeStringHelper(timeString string) (time.Time, error) {
+	unixMilliseconds, err := strconv.ParseInt(timeString, 10, 64)
+	if err != nil {
+		return time.Time{}, err
+	}
+	return time.Unix(unixMilliseconds/1e3, (unixMilliseconds%1e3)*1e6).UTC(), nil
+}
+
 // parseTimeString converts a decimal string number of milliseconds
 // elapsed since January 1, 1970 UTC into a time.Time and stores it in
 // the modTime variable.
@@ -1702,12 +1734,12 @@ func (o *Object) parseTimeString(timeString string) (err error) {
 	if timeString == "" {
 		return nil
 	}
-	unixMilliseconds, err := strconv.ParseInt(timeString, 10, 64)
+	modTime, err := parseTimeStringHelper(timeString)
 	if err != nil {
 		fs.Debugf(o, "Failed to parse mod time string %q: %v", timeString, err)
 		return nil
 	}
-	o.modTime = time.Unix(unixMilliseconds/1e3, (unixMilliseconds%1e3)*1e6).UTC()
+	o.modTime = modTime
 	return nil
 }
 
@@ -1861,13 +1893,19 @@ func (o *Object) getOrHead(ctx context.Context, method string, options []fs.Open
 		ContentType:     resp.Header.Get("Content-Type"),
 		Info:            Info,
 	}
+
 	// When reading files from B2 via cloudflare using
 	// --b2-download-url cloudflare strips the Content-Length
 	// headers (presumably so it can inject stuff) so use the old
 	// length read from the listing.
+	// Additionally, the official examples return S3 headers
+	// instead of native, i.e. no file ID, use ones from listing.
 	if info.Size < 0 {
 		info.Size = o.size
 	}
+	if info.ID == "" {
+		info.ID = o.id
+	}
 	return resp, info, nil
 }
 
@@ -1917,7 +1955,7 @@ func init() {
 // urlEncode encodes in with % encoding
 func urlEncode(in string) string {
 	var out bytes.Buffer
-	for i := 0; i < len(in); i++ {
+	for i := range len(in) {
 		c := in[i]
 		if noNeedToEncode[c] {
 			_ = out.WriteByte(c)
@@ -1958,7 +1996,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 
 		if err == nil {
 			fs.Debugf(o, "File is big enough for chunked streaming")
-			up, err := o.fs.newLargeUpload(ctx, o, in, src, o.fs.opt.ChunkSize, false, nil)
+			up, err := o.fs.newLargeUpload(ctx, o, in, src, o.fs.opt.ChunkSize, false, nil, options...)
 			if err != nil {
 				o.fs.putRW(rw)
 				return err
@@ -1990,7 +2028,10 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return o.decodeMetaDataFileInfo(up.info)
 	}
 
-	modTime := src.ModTime(ctx)
+	modTime, err := o.getModTime(ctx, src, options)
+	if err != nil {
+		return err
+	}
 
 	calculatedSha1, _ := src.Hash(ctx, hash.SHA1)
 	if calculatedSha1 == "" {
@@ -2095,6 +2136,36 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 	return o.decodeMetaDataFileInfo(&response)
 }
 
+// Get modTime from the source; if --metadata is set, fetch the src metadata and get it from there.
+// When metadata support is added to b2, this method will need a more generic name
+func (o *Object) getModTime(ctx context.Context, src fs.ObjectInfo, options []fs.OpenOption) (time.Time, error) {
+	modTime := src.ModTime(ctx)
+
+	// Fetch metadata if --metadata is in use
+	meta, err := fs.GetMetadataOptions(ctx, o.fs, src, options)
+	if err != nil {
+		return time.Time{}, fmt.Errorf("failed to read metadata from source object: %w", err)
+	}
+	// merge metadata into request and user metadata
+	for k, v := range meta {
+		k = strings.ToLower(k)
+		// For now, the only metadata we're concerned with is "mtime"
+		switch k {
+		case "mtime":
+			// mtime in meta overrides source ModTime
+			metaModTime, err := time.Parse(time.RFC3339Nano, v)
+			if err != nil {
+				fs.Debugf(o, "failed to parse metadata %s: %q: %v", k, v, err)
+			} else {
+				modTime = metaModTime
+			}
+		default:
+			// Do nothing for now
+		}
+	}
+	return modTime, nil
+}
+
 // OpenChunkWriter returns the chunk size and a ChunkWriter
 //
 // Pass in the remote and the src object
@@ -2126,7 +2197,7 @@ func (f *Fs) OpenChunkWriter(ctx context.Context, remote string, src fs.ObjectIn
 		Concurrency: o.fs.opt.UploadConcurrency,
 		//LeavePartsOnError: o.fs.opt.LeavePartsOnError,
 	}
-	up, err := f.newLargeUpload(ctx, o, nil, src, f.opt.ChunkSize, false, nil)
+	up, err := f.newLargeUpload(ctx, o, nil, src, f.opt.ChunkSize, false, nil, options...)
 	return info, up, err
 }
 
@@ -2172,6 +2243,7 @@ This will dump something like this showing the lifecycle rules.
         {
             "daysFromHidingToDeleting": 1,
             "daysFromUploadingToHiding": null,
+            "daysFromStartingToCancelingUnfinishedLargeFiles": null,
             "fileNamePrefix": ""
         }
     ]
@@ -2198,12 +2270,13 @@ overwrites will still cause versions to be made.
 See: https://www.backblaze.com/docs/cloud-storage-lifecycle-rules
 `,
 	Opts: map[string]string{
-		"daysFromHidingToDeleting":  "After a file has been hidden for this many days it is deleted. 0 is off.",
-		"daysFromUploadingToHiding": "This many days after uploading a file is hidden",
+		"daysFromHidingToDeleting":                        "After a file has been hidden for this many days it is deleted. 0 is off.",
+		"daysFromUploadingToHiding":                       "This many days after uploading a file is hidden",
+		"daysFromStartingToCancelingUnfinishedLargeFiles": "Cancels any unfinished large file versions after this many days",
 	},
 }
 
-func (f *Fs) lifecycleCommand(ctx context.Context, name string, arg []string, opt map[string]string) (out interface{}, err error) {
+func (f *Fs) lifecycleCommand(ctx context.Context, name string, arg []string, opt map[string]string) (out any, err error) {
 	var newRule api.LifecycleRule
 	if daysStr := opt["daysFromHidingToDeleting"]; daysStr != "" {
 		days, err := strconv.Atoi(daysStr)
@@ -2219,14 +2292,23 @@ func (f *Fs) lifecycleCommand(ctx context.Context, name string, arg []string, op
 		}
 		newRule.DaysFromUploadingToHiding = &days
 	}
+	if daysStr := opt["daysFromStartingToCancelingUnfinishedLargeFiles"]; daysStr != "" {
+		days, err := strconv.Atoi(daysStr)
+		if err != nil {
+			return nil, fmt.Errorf("bad daysFromStartingToCancelingUnfinishedLargeFiles: %w", err)
+		}
+		newRule.DaysFromStartingToCancelingUnfinishedLargeFiles = &days
+	}
 	bucketName, _ := f.split("")
 	if bucketName == "" {
 		return nil, errors.New("bucket required")
 
 	}
 
+	skip := operations.SkipDestructive(ctx, name, "update lifecycle rules")
+
 	var bucket *api.Bucket
-	if newRule.DaysFromHidingToDeleting != nil || newRule.DaysFromUploadingToHiding != nil {
+	if !skip && (newRule.DaysFromHidingToDeleting != nil || newRule.DaysFromUploadingToHiding != nil || newRule.DaysFromStartingToCancelingUnfinishedLargeFiles != nil) {
 		bucketID, err := f.getBucketID(ctx, bucketName)
 		if err != nil {
 			return nil, err
@@ -2283,7 +2365,7 @@ Durations are parsed as per the rest of rclone, 2h, 7d, 7w etc.
 	},
 }
 
-func (f *Fs) cleanupCommand(ctx context.Context, name string, arg []string, opt map[string]string) (out interface{}, err error) {
+func (f *Fs) cleanupCommand(ctx context.Context, name string, arg []string, opt map[string]string) (out any, err error) {
 	maxAge := defaultMaxAge
 	if opt["max-age"] != "" {
 		maxAge, err = fs.ParseDuration(opt["max-age"])
@@ -2306,7 +2388,7 @@ it would do.
 `,
 }
 
-func (f *Fs) cleanupHiddenCommand(ctx context.Context, name string, arg []string, opt map[string]string) (out interface{}, err error) {
+func (f *Fs) cleanupHiddenCommand(ctx context.Context, name string, arg []string, opt map[string]string) (out any, err error) {
 	return nil, f.cleanUp(ctx, true, false, 0)
 }
 
@@ -2325,7 +2407,7 @@ var commandHelp = []fs.CommandHelp{
 // The result should be capable of being JSON encoded
 // If it is a string or a []string it will be shown to the user
 // otherwise it will be JSON encoded and shown to the user like that
-func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (out interface{}, err error) {
+func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (out any, err error) {
 	switch name {
 	case "lifecycle":
 		return f.lifecycleCommand(ctx, name, arg, opt)

backend/b2/b2_internal_test.go

@@ -5,6 +5,7 @@ import (
 	"crypto/sha1"
 	"fmt"
 	"path"
+	"sort"
 	"strings"
 	"testing"
 	"time"
@@ -13,6 +14,7 @@ import (
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/cache"
 	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/fs/object"
 	"github.com/rclone/rclone/fstest"
 	"github.com/rclone/rclone/fstest/fstests"
 	"github.com/rclone/rclone/lib/bucket"
@@ -184,57 +186,120 @@ func TestParseTimeString(t *testing.T) {
 
 }
 
-// This is adapted from the s3 equivalent.
-func (f *Fs) InternalTestMetadata(t *testing.T) {
-	ctx := context.Background()
-	original := random.String(1000)
-	contents := fstest.Gz(t, original)
-	mimeType := "text/html"
-
-	item := fstest.NewItem("test-metadata", contents, fstest.Time("2001-05-06T04:05:06.499Z"))
-	btime := time.Now()
-	obj := fstests.PutTestContentsMetadata(ctx, t, f, &item, contents, true, mimeType, nil)
-	defer func() {
-		assert.NoError(t, obj.Remove(ctx))
-	}()
-	o := obj.(*Object)
-	gotMetadata, err := o.getMetaData(ctx)
-	require.NoError(t, err)
-
-	// We currently have a limited amount of metadata to test with B2
-	assert.Equal(t, mimeType, gotMetadata.ContentType, "Content-Type")
-
-	// Modification time from the x-bz-info-src_last_modified_millis header
-	var mtime api.Timestamp
-	err = mtime.UnmarshalJSON([]byte(gotMetadata.Info[timeKey]))
-	if err != nil {
-		fs.Debugf(o, "Bad "+timeHeader+" header: %v", err)
+// Return a map of the headers in the options with keys stripped of the "x-bz-info-" prefix
+func OpenOptionToMetaData(options []fs.OpenOption) map[string]string {
+	var headers = make(map[string]string)
+	for _, option := range options {
+		k, v := option.Header()
+		k = strings.ToLower(k)
+		if strings.HasPrefix(k, headerPrefix) {
+			headers[k[len(headerPrefix):]] = v
+		}
 	}
-	assert.Equal(t, item.ModTime, time.Time(mtime), "Modification time")
 
-	// Upload time
-	gotBtime := time.Time(gotMetadata.UploadTimestamp)
-	dt := gotBtime.Sub(btime)
-	assert.True(t, dt < time.Minute && dt > -time.Minute, fmt.Sprintf("btime more than 1 minute out want %v got %v delta %v", btime, gotBtime, dt))
+	return headers
+}
 
-	t.Run("GzipEncoding", func(t *testing.T) {
-		// Test that the gzipped file we uploaded can be
-		// downloaded
-		checkDownload := func(wantContents string, wantSize int64, wantHash string) {
-			gotContents := fstests.ReadObject(ctx, t, o, -1)
-			assert.Equal(t, wantContents, gotContents)
-			assert.Equal(t, wantSize, o.Size())
-			gotHash, err := o.Hash(ctx, hash.SHA1)
+func (f *Fs) internalTestMetadata(t *testing.T, size string, uploadCutoff string, chunkSize string) {
+	what := fmt.Sprintf("Size%s/UploadCutoff%s/ChunkSize%s", size, uploadCutoff, chunkSize)
+	t.Run(what, func(t *testing.T) {
+		ctx := context.Background()
+
+		ss := fs.SizeSuffix(0)
+		err := ss.Set(size)
+		require.NoError(t, err)
+		original := random.String(int(ss))
+
+		contents := fstest.Gz(t, original)
+		mimeType := "text/html"
+
+		if chunkSize != "" {
+			ss := fs.SizeSuffix(0)
+			err := ss.Set(chunkSize)
+			require.NoError(t, err)
+			_, err = f.SetUploadChunkSize(ss)
 			require.NoError(t, err)
-			assert.Equal(t, wantHash, gotHash)
 		}
 
-		t.Run("NoDecompress", func(t *testing.T) {
-			checkDownload(contents, int64(len(contents)), sha1Sum(t, contents))
+		if uploadCutoff != "" {
+			ss := fs.SizeSuffix(0)
+			err := ss.Set(uploadCutoff)
+			require.NoError(t, err)
+			_, err = f.SetUploadCutoff(ss)
+			require.NoError(t, err)
+		}
+
+		item := fstest.NewItem("test-metadata", contents, fstest.Time("2001-05-06T04:05:06.499Z"))
+		btime := time.Now()
+		metadata := fs.Metadata{
+			// Just mtime for now - limit to milliseconds since x-bz-info-src_last_modified_millis can't support any
+
+			"mtime": "2009-05-06T04:05:06.499Z",
+		}
+
+		// Need to specify HTTP options with the header prefix since they are passed as-is
+		options := []fs.OpenOption{
+			&fs.HTTPOption{Key: "X-Bz-Info-a", Value: "1"},
+			&fs.HTTPOption{Key: "X-Bz-Info-b", Value: "2"},
+		}
+
+		obj := fstests.PutTestContentsMetadata(ctx, t, f, &item, true, contents, true, mimeType, metadata, options...)
+		defer func() {
+			assert.NoError(t, obj.Remove(ctx))
+		}()
+		o := obj.(*Object)
+		gotMetadata, err := o.getMetaData(ctx)
+		require.NoError(t, err)
+
+		// X-Bz-Info-a & X-Bz-Info-b
+		optMetadata := OpenOptionToMetaData(options)
+		for k, v := range optMetadata {
+			got := gotMetadata.Info[k]
+			assert.Equal(t, v, got, k)
+		}
+
+		assert.Equal(t, mimeType, gotMetadata.ContentType, "Content-Type")
+
+		// Modification time from the x-bz-info-src_last_modified_millis header
+		var mtime api.Timestamp
+		err = mtime.UnmarshalJSON([]byte(gotMetadata.Info[timeKey]))
+		if err != nil {
+			fs.Debugf(o, "Bad "+timeHeader+" header: %v", err)
+		}
+		assert.Equal(t, item.ModTime, time.Time(mtime), "Modification time")
+
+		// Upload time
+		gotBtime := time.Time(gotMetadata.UploadTimestamp)
+		dt := gotBtime.Sub(btime)
+		assert.True(t, dt < time.Minute && dt > -time.Minute, fmt.Sprintf("btime more than 1 minute out want %v got %v delta %v", btime, gotBtime, dt))
+
+		t.Run("GzipEncoding", func(t *testing.T) {
+			// Test that the gzipped file we uploaded can be
+			// downloaded
+			checkDownload := func(wantContents string, wantSize int64, wantHash string) {
+				gotContents := fstests.ReadObject(ctx, t, o, -1)
+				assert.Equal(t, wantContents, gotContents)
+				assert.Equal(t, wantSize, o.Size())
+				gotHash, err := o.Hash(ctx, hash.SHA1)
+				require.NoError(t, err)
+				assert.Equal(t, wantHash, gotHash)
+			}
+
+			t.Run("NoDecompress", func(t *testing.T) {
+				checkDownload(contents, int64(len(contents)), sha1Sum(t, contents))
+			})
 		})
 	})
 }
 
+func (f *Fs) InternalTestMetadata(t *testing.T) {
+	// 1 kB regular file
+	f.internalTestMetadata(t, "1kiB", "", "")
+
+	// 10 MiB large file
+	f.internalTestMetadata(t, "10MiB", "6MiB", "6MiB")
+}
+
 func sha1Sum(t *testing.T, s string) string {
 	hash := sha1.Sum([]byte(s))
 	return fmt.Sprintf("%x", hash)
@@ -381,37 +446,174 @@ func (f *Fs) InternalTestVersions(t *testing.T) {
 				t.Run("List", func(t *testing.T) {
 					fstest.CheckListing(t, f, test.want)
 				})
-				// b2 NewObject doesn't work with VersionAt
-				//t.Run("NewObject", func(t *testing.T) {
-				//	gotObj, gotErr := f.NewObject(ctx, fileName)
-				//	assert.Equal(t, test.wantErr, gotErr)
-				//	if gotErr == nil {
-				//		assert.Equal(t, test.wantSize, gotObj.Size())
-				//	}
-				//})
+
+				t.Run("NewObject", func(t *testing.T) {
+					gotObj, gotErr := f.NewObject(ctx, fileName)
+					assert.Equal(t, test.wantErr, gotErr)
+					if gotErr == nil {
+						assert.Equal(t, test.wantSize, gotObj.Size())
+					}
+				})
 			})
 		}
 	})
 
 	t.Run("Cleanup", func(t *testing.T) {
-		require.NoError(t, f.cleanUp(ctx, true, false, 0))
-		items := append([]fstest.Item{newItem}, fstests.InternalTestFiles...)
-		fstest.CheckListing(t, f, items)
-		// Set --b2-versions for this test
-		f.opt.Versions = true
-		defer func() {
-			f.opt.Versions = false
-		}()
-		fstest.CheckListing(t, f, items)
+		t.Run("DryRun", func(t *testing.T) {
+			f.opt.Versions = true
+			defer func() {
+				f.opt.Versions = false
+			}()
+			// Listing should be unchanged after dry run
+			before := listAllFiles(ctx, t, f, dirName)
+			ctx, ci := fs.AddConfig(ctx)
+			ci.DryRun = true
+			require.NoError(t, f.cleanUp(ctx, true, false, 0))
+			after := listAllFiles(ctx, t, f, dirName)
+			assert.Equal(t, before, after)
+		})
+
+		t.Run("RealThing", func(t *testing.T) {
+			f.opt.Versions = true
+			defer func() {
+				f.opt.Versions = false
+			}()
+			// Listing should reflect current state after cleanup
+			require.NoError(t, f.cleanUp(ctx, true, false, 0))
+			items := append([]fstest.Item{newItem}, fstests.InternalTestFiles...)
+			fstest.CheckListing(t, f, items)
+		})
 	})
 
 	// Purge gets tested later
 }
 
+func (f *Fs) InternalTestCleanupUnfinished(t *testing.T) {
+	ctx := context.Background()
+
+	// B2CleanupHidden tests cleaning up hidden files
+	t.Run("CleanupUnfinished", func(t *testing.T) {
+		dirName := "unfinished"
+		fileCount := 5
+		expectedFiles := []string{}
+		for i := 1; i < fileCount; i++ {
+			fileName := fmt.Sprintf("%s/unfinished-%d", dirName, i)
+			expectedFiles = append(expectedFiles, fileName)
+			obj := &Object{
+				fs:     f,
+				remote: fileName,
+			}
+			objInfo := object.NewStaticObjectInfo(fileName, fstest.Time("2002-02-03T04:05:06.499999999Z"), -1, true, nil, nil)
+			_, err := f.newLargeUpload(ctx, obj, nil, objInfo, f.opt.ChunkSize, false, nil)
+			require.NoError(t, err)
+		}
+		checkListing(ctx, t, f, dirName, expectedFiles)
+
+		t.Run("DryRun", func(t *testing.T) {
+			// Listing should not change after dry run
+			ctx, ci := fs.AddConfig(ctx)
+			ci.DryRun = true
+			require.NoError(t, f.cleanUp(ctx, false, true, 0))
+			checkListing(ctx, t, f, dirName, expectedFiles)
+		})
+
+		t.Run("RealThing", func(t *testing.T) {
+			// Listing should be empty after real cleanup
+			require.NoError(t, f.cleanUp(ctx, false, true, 0))
+			checkListing(ctx, t, f, dirName, []string{})
+		})
+	})
+}
+
+func listAllFiles(ctx context.Context, t *testing.T, f *Fs, dirName string) []string {
+	bucket, directory := f.split(dirName)
+	foundFiles := []string{}
+	require.NoError(t, f.list(ctx, bucket, directory, "", false, true, 0, true, false, func(remote string, object *api.File, isDirectory bool) error {
+		if !isDirectory {
+			foundFiles = append(foundFiles, object.Name)
+		}
+		return nil
+	}))
+	sort.Strings(foundFiles)
+	return foundFiles
+}
+
+func checkListing(ctx context.Context, t *testing.T, f *Fs, dirName string, expectedFiles []string) {
+	foundFiles := listAllFiles(ctx, t, f, dirName)
+	sort.Strings(expectedFiles)
+	assert.Equal(t, expectedFiles, foundFiles)
+}
+
+func (f *Fs) InternalTestLifecycleRules(t *testing.T) {
+	ctx := context.Background()
+
+	opt := map[string]string{}
+
+	t.Run("InitState", func(t *testing.T) {
+		// There should be no lifecycle rules at the outset
+		lifecycleRulesIf, err := f.lifecycleCommand(ctx, "lifecycle", nil, opt)
+		lifecycleRules := lifecycleRulesIf.([]api.LifecycleRule)
+		require.NoError(t, err)
+		assert.Equal(t, 0, len(lifecycleRules))
+	})
+
+	t.Run("DryRun", func(t *testing.T) {
+		// There should still be no lifecycle rules after each dry run operation
+		ctx, ci := fs.AddConfig(ctx)
+		ci.DryRun = true
+
+		opt["daysFromHidingToDeleting"] = "30"
+		lifecycleRulesIf, err := f.lifecycleCommand(ctx, "lifecycle", nil, opt)
+		lifecycleRules := lifecycleRulesIf.([]api.LifecycleRule)
+		require.NoError(t, err)
+		assert.Equal(t, 0, len(lifecycleRules))
+
+		delete(opt, "daysFromHidingToDeleting")
+		opt["daysFromUploadingToHiding"] = "40"
+		lifecycleRulesIf, err = f.lifecycleCommand(ctx, "lifecycle", nil, opt)
+		lifecycleRules = lifecycleRulesIf.([]api.LifecycleRule)
+		require.NoError(t, err)
+		assert.Equal(t, 0, len(lifecycleRules))
+
+		opt["daysFromHidingToDeleting"] = "30"
+		lifecycleRulesIf, err = f.lifecycleCommand(ctx, "lifecycle", nil, opt)
+		lifecycleRules = lifecycleRulesIf.([]api.LifecycleRule)
+		require.NoError(t, err)
+		assert.Equal(t, 0, len(lifecycleRules))
+	})
+
+	t.Run("RealThing", func(t *testing.T) {
+		opt["daysFromHidingToDeleting"] = "30"
+		lifecycleRulesIf, err := f.lifecycleCommand(ctx, "lifecycle", nil, opt)
+		lifecycleRules := lifecycleRulesIf.([]api.LifecycleRule)
+		require.NoError(t, err)
+		assert.Equal(t, 1, len(lifecycleRules))
+		assert.Equal(t, 30, *lifecycleRules[0].DaysFromHidingToDeleting)
+
+		delete(opt, "daysFromHidingToDeleting")
+		opt["daysFromUploadingToHiding"] = "40"
+		lifecycleRulesIf, err = f.lifecycleCommand(ctx, "lifecycle", nil, opt)
+		lifecycleRules = lifecycleRulesIf.([]api.LifecycleRule)
+		require.NoError(t, err)
+		assert.Equal(t, 1, len(lifecycleRules))
+		assert.Equal(t, 40, *lifecycleRules[0].DaysFromUploadingToHiding)
+
+		opt["daysFromHidingToDeleting"] = "30"
+		lifecycleRulesIf, err = f.lifecycleCommand(ctx, "lifecycle", nil, opt)
+		lifecycleRules = lifecycleRulesIf.([]api.LifecycleRule)
+		require.NoError(t, err)
+		assert.Equal(t, 1, len(lifecycleRules))
+		assert.Equal(t, 30, *lifecycleRules[0].DaysFromHidingToDeleting)
+		assert.Equal(t, 40, *lifecycleRules[0].DaysFromUploadingToHiding)
+	})
+}
+
 // -run TestIntegration/FsMkdir/FsPutFiles/Internal
 func (f *Fs) InternalTest(t *testing.T) {
 	t.Run("Metadata", f.InternalTestMetadata)
 	t.Run("Versions", f.InternalTestVersions)
+	t.Run("CleanupUnfinished", f.InternalTestCleanupUnfinished)
+	t.Run("LifecycleRules", f.InternalTestLifecycleRules)
 }
 
 var _ fstests.InternalTester = (*Fs)(nil)

backend/b2/upload.go

@@ -91,7 +91,7 @@ type largeUpload struct {
 // newLargeUpload starts an upload of object o from in with metadata in src
 //
 // If newInfo is set then metadata from that will be used instead of reading it from src
-func (f *Fs) newLargeUpload(ctx context.Context, o *Object, in io.Reader, src fs.ObjectInfo, defaultChunkSize fs.SizeSuffix, doCopy bool, newInfo *api.File) (up *largeUpload, err error) {
+func (f *Fs) newLargeUpload(ctx context.Context, o *Object, in io.Reader, src fs.ObjectInfo, defaultChunkSize fs.SizeSuffix, doCopy bool, newInfo *api.File, options ...fs.OpenOption) (up *largeUpload, err error) {
 	size := src.Size()
 	parts := 0
 	chunkSize := defaultChunkSize
@@ -104,11 +104,6 @@ func (f *Fs) newLargeUpload(ctx context.Context, o *Object, in io.Reader, src fs
 			parts++
 		}
 	}
-
-	opts := rest.Opts{
-		Method: "POST",
-		Path:   "/b2_start_large_file",
-	}
 	bucket, bucketPath := o.split()
 	bucketID, err := f.getBucketID(ctx, bucket)
 	if err != nil {
@@ -118,12 +113,27 @@ func (f *Fs) newLargeUpload(ctx context.Context, o *Object, in io.Reader, src fs
 		BucketID: bucketID,
 		Name:     f.opt.Enc.FromStandardPath(bucketPath),
 	}
+	optionsToSend := make([]fs.OpenOption, 0, len(options))
 	if newInfo == nil {
-		modTime := src.ModTime(ctx)
+		modTime, err := o.getModTime(ctx, src, options)
+		if err != nil {
+			return nil, err
+		}
+
 		request.ContentType = fs.MimeType(ctx, src)
 		request.Info = map[string]string{
 			timeKey: timeString(modTime),
 		}
+		// Custom upload headers - remove header prefix since they are sent in the body
+		for _, option := range options {
+			k, v := option.Header()
+			k = strings.ToLower(k)
+			if strings.HasPrefix(k, headerPrefix) {
+				request.Info[k[len(headerPrefix):]] = v
+			} else {
+				optionsToSend = append(optionsToSend, option)
+			}
+		}
 		// Set the SHA1 if known
 		if !o.fs.opt.DisableCheckSum || doCopy {
 			if calculatedSha1, err := src.Hash(ctx, hash.SHA1); err == nil && calculatedSha1 != "" {
@@ -134,6 +144,11 @@ func (f *Fs) newLargeUpload(ctx context.Context, o *Object, in io.Reader, src fs
 		request.ContentType = newInfo.ContentType
 		request.Info = newInfo.Info
 	}
+	opts := rest.Opts{
+		Method:  "POST",
+		Path:    "/b2_start_large_file",
+		Options: optionsToSend,
+	}
 	var response api.StartLargeFileResponse
 	err = f.pacer.Call(func() (bool, error) {
 		resp, err := f.srv.CallJSON(ctx, &opts, &request, &response)
@@ -463,17 +478,14 @@ func (up *largeUpload) Copy(ctx context.Context) (err error) {
 		remaining = up.size
 	)
 	g.SetLimit(up.f.opt.UploadConcurrency)
-	for part := 0; part < up.parts; part++ {
+	for part := range up.parts {
 		// Fail fast, in case an errgroup managed function returns an error
 		// gCtx is cancelled. There is no point in copying all the other parts.
 		if gCtx.Err() != nil {
 			break
 		}
 
-		reqSize := remaining
-		if reqSize >= up.chunkSize {
-			reqSize = up.chunkSize
-		}
+		reqSize := min(remaining, up.chunkSize)
 
 		part := part // for the closure
 		g.Go(func() (err error) {

backend/box/box.go

@@ -43,9 +43,9 @@ import (
 	"github.com/rclone/rclone/lib/jwtutil"
 	"github.com/rclone/rclone/lib/oauthutil"
 	"github.com/rclone/rclone/lib/pacer"
+	"github.com/rclone/rclone/lib/random"
 	"github.com/rclone/rclone/lib/rest"
 	"github.com/youmark/pkcs8"
-	"golang.org/x/oauth2"
 )
 
 const (
@@ -64,12 +64,10 @@ const (
 // Globals
 var (
 	// Description of how to auth for this app
-	oauthConfig = &oauth2.Config{
-		Scopes: nil,
-		Endpoint: oauth2.Endpoint{
-			AuthURL:  "https://app.box.com/api/oauth2/authorize",
-			TokenURL: "https://app.box.com/api/oauth2/token",
-		},
+	oauthConfig = &oauthutil.Config{
+		Scopes:       nil,
+		AuthURL:      "https://app.box.com/api/oauth2/authorize",
+		TokenURL:     "https://app.box.com/api/oauth2/token",
 		ClientID:     rcloneClientID,
 		ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
 		RedirectURL:  oauthutil.RedirectURL,
@@ -239,8 +237,8 @@ func getClaims(boxConfig *api.ConfigJSON, boxSubType string) (claims *boxCustomC
 	return claims, nil
 }
 
-func getSigningHeaders(boxConfig *api.ConfigJSON) map[string]interface{} {
-	signingHeaders := map[string]interface{}{
+func getSigningHeaders(boxConfig *api.ConfigJSON) map[string]any {
+	signingHeaders := map[string]any{
 		"kid": boxConfig.BoxAppSettings.AppAuth.PublicKeyID,
 	}
 	return signingHeaders
@@ -256,8 +254,10 @@ func getQueryParams(boxConfig *api.ConfigJSON) map[string]string {
 }
 
 func getDecryptedPrivateKey(boxConfig *api.ConfigJSON) (key *rsa.PrivateKey, err error) {
-
 	block, rest := pem.Decode([]byte(boxConfig.BoxAppSettings.AppAuth.PrivateKey))
+	if block == nil {
+		return nil, errors.New("box: failed to PEM decode private key")
+	}
 	if len(rest) > 0 {
 		return nil, fmt.Errorf("box: extra data included in private key: %w", err)
 	}
@@ -619,7 +619,7 @@ func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (newID string,
 		return shouldRetry(ctx, resp, err)
 	})
 	if err != nil {
-		//fmt.Printf("...Error %v\n", err)
+		// fmt.Printf("...Error %v\n", err)
 		return "", err
 	}
 	// fmt.Printf("...Id %q\n", *info.Id)
@@ -966,6 +966,26 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		return nil, err
 	}
 
+	// check if dest already exists
+	item, err := f.preUploadCheck(ctx, leaf, directoryID, src.Size())
+	if err != nil {
+		return nil, err
+	}
+	if item != nil { // dest already exists, need to copy to temp name and then move
+		tempSuffix := "-rclone-copy-" + random.String(8)
+		fs.Debugf(remote, "dst already exists, copying to temp name %v", remote+tempSuffix)
+		tempObj, err := f.Copy(ctx, src, remote+tempSuffix)
+		if err != nil {
+			return nil, err
+		}
+		fs.Debugf(remote+tempSuffix, "moving to real name %v", remote)
+		err = f.deleteObject(ctx, item.ID)
+		if err != nil {
+			return nil, err
+		}
+		return f.Move(ctx, tempObj, remote)
+	}
+
 	// Copy the object
 	opts := rest.Opts{
 		Method:     "POST",
@@ -1323,12 +1343,8 @@ func (f *Fs) changeNotifyRunner(ctx context.Context, notifyFunc func(string, fs.
 	nextStreamPosition = streamPosition
 
 	for {
-		limit := f.opt.ListChunk
-
 		// box only allows a max of 500 events
-		if limit > 500 {
-			limit = 500
-		}
+		limit := min(f.opt.ListChunk, 500)
 
 		opts := rest.Opts{
 			Method:     "GET",

backend/box/upload.go

@@ -105,7 +105,7 @@ func (o *Object) commitUpload(ctx context.Context, SessionID string, parts []api
 	const defaultDelay = 10
 	var tries int
 outer:
-	for tries = 0; tries < maxTries; tries++ {
+	for tries = range maxTries {
 		err = o.fs.pacer.Call(func() (bool, error) {
 			resp, err = o.fs.srv.CallJSON(ctx, &opts, &request, nil)
 			if err != nil {
@@ -203,7 +203,7 @@ func (o *Object) uploadMultipart(ctx context.Context, in io.Reader, leaf, direct
 	errs := make(chan error, 1)
 	var wg sync.WaitGroup
 outer:
-	for part := 0; part < session.TotalParts; part++ {
+	for part := range session.TotalParts {
 		// Check any errors
 		select {
 		case err = <-errs:
@@ -211,10 +211,7 @@ outer:
 		default:
 		}
 
-		reqSize := remaining
-		if reqSize >= chunkSize {
-			reqSize = chunkSize
-		}
+		reqSize := min(remaining, chunkSize)
 
 		// Make a block of memory
 		buf := make([]byte, reqSize)

backend/cache/cache.go

@@ -29,6 +29,7 @@ import (
 	"github.com/rclone/rclone/fs/config/obscure"
 	"github.com/rclone/rclone/fs/fspath"
 	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/fs/list"
 	"github.com/rclone/rclone/fs/rc"
 	"github.com/rclone/rclone/fs/walk"
 	"github.com/rclone/rclone/lib/atexit"
@@ -409,18 +410,16 @@ func NewFs(ctx context.Context, name, rootPath string, m configmap.Mapper) (fs.F
 			if err != nil {
 				return nil, fmt.Errorf("failed to connect to the Plex API %v: %w", opt.PlexURL, err)
 			}
-		} else {
-			if opt.PlexPassword != "" && opt.PlexUsername != "" {
-				decPass, err := obscure.Reveal(opt.PlexPassword)
-				if err != nil {
-					decPass = opt.PlexPassword
-				}
-				f.plexConnector, err = newPlexConnector(f, opt.PlexURL, opt.PlexUsername, decPass, opt.PlexInsecure, func(token string) {
-					m.Set("plex_token", token)
-				})
-				if err != nil {
-					return nil, fmt.Errorf("failed to connect to the Plex API %v: %w", opt.PlexURL, err)
-				}
+		} else if opt.PlexPassword != "" && opt.PlexUsername != "" {
+			decPass, err := obscure.Reveal(opt.PlexPassword)
+			if err != nil {
+				decPass = opt.PlexPassword
+			}
+			f.plexConnector, err = newPlexConnector(f, opt.PlexURL, opt.PlexUsername, decPass, opt.PlexInsecure, func(token string) {
+				m.Set("plex_token", token)
+			})
+			if err != nil {
+				return nil, fmt.Errorf("failed to connect to the Plex API %v: %w", opt.PlexURL, err)
 			}
 		}
 	}
@@ -1088,13 +1087,13 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	return cachedEntries, nil
 }
 
-func (f *Fs) recurse(ctx context.Context, dir string, list *walk.ListRHelper) error {
+func (f *Fs) recurse(ctx context.Context, dir string, list *list.Helper) error {
 	entries, err := f.List(ctx, dir)
 	if err != nil {
 		return err
 	}
 
-	for i := 0; i < len(entries); i++ {
+	for i := range entries {
 		innerDir, ok := entries[i].(fs.Directory)
 		if ok {
 			err := f.recurse(ctx, innerDir.Remote(), list)
@@ -1140,7 +1139,7 @@ func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (
 	}
 
 	// if we're here, we're gonna do a standard recursive traversal and cache everything
-	list := walk.NewListRHelper(callback)
+	list := list.NewHelper(callback)
 	err = f.recurse(ctx, dir, list)
 	if err != nil {
 		return err
@@ -1430,7 +1429,7 @@ func (f *Fs) cacheReader(u io.Reader, src fs.ObjectInfo, originalRead func(inn i
 	}()
 
 	// wait until both are done
-	for c := 0; c < 2; c++ {
+	for range 2 {
 		<-done
 	}
 }
@@ -1755,7 +1754,7 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 }
 
 // Stats returns stats about the cache storage
-func (f *Fs) Stats() (map[string]map[string]interface{}, error) {
+func (f *Fs) Stats() (map[string]map[string]any, error) {
 	return f.cache.Stats()
 }
 
@@ -1935,7 +1934,7 @@ var commandHelp = []fs.CommandHelp{
 // The result should be capable of being JSON encoded
 // If it is a string or a []string it will be shown to the user
 // otherwise it will be JSON encoded and shown to the user like that
-func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (interface{}, error) {
+func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (any, error) {
 	switch name {
 	case "stats":
 		return f.Stats()

backend/cache/cache_internal_test.go

@@ -10,7 +10,6 @@ import (
 	goflag "flag"
 	"fmt"
 	"io"
-	"log"
 	"math/rand"
 	"os"
 	"path"
@@ -33,7 +32,7 @@ import (
 	"github.com/rclone/rclone/fstest"
 	"github.com/rclone/rclone/fstest/testy"
 	"github.com/rclone/rclone/lib/random"
-	"github.com/rclone/rclone/vfs/vfsflags"
+	"github.com/rclone/rclone/vfs/vfscommon"
 	"github.com/stretchr/testify/require"
 )
 
@@ -93,7 +92,7 @@ func TestMain(m *testing.M) {
 	goflag.Parse()
 	var rc int
 
-	log.Printf("Running with the following params: \n remote: %v", remoteName)
+	fs.Logf(nil, "Running with the following params: \n remote: %v", remoteName)
 	runInstance = newRun()
 	rc = m.Run()
 	os.Exit(rc)
@@ -123,10 +122,10 @@ func TestInternalListRootAndInnerRemotes(t *testing.T) {
 
 /* TODO: is this testing something?
 func TestInternalVfsCache(t *testing.T) {
-	vfsflags.Opt.DirCacheTime = time.Second * 30
+	vfscommon.Opt.DirCacheTime = time.Second * 30
 	testSize := int64(524288000)
 
-	vfsflags.Opt.CacheMode = vfs.CacheModeWrites
+	vfscommon.Opt.CacheMode = vfs.CacheModeWrites
 	id := "tiuufo"
 	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, true, true, nil, map[string]string{"writes": "true", "info_age": "1h"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)
@@ -338,7 +337,7 @@ func TestInternalCachedUpdatedContentMatches(t *testing.T) {
 
 func TestInternalWrappedWrittenContentMatches(t *testing.T) {
 	id := fmt.Sprintf("tiwwcm%v", time.Now().Unix())
-	vfsflags.Opt.DirCacheTime = time.Second
+	vfscommon.Opt.DirCacheTime = fs.Duration(time.Second)
 	rootFs, _ := runInstance.newCacheFs(t, remoteName, id, true, true, nil)
 	if runInstance.rootIsCrypt {
 		t.Skip("test skipped with crypt remote")
@@ -361,14 +360,14 @@ func TestInternalWrappedWrittenContentMatches(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, int64(len(checkSample)), o.Size())
 
-	for i := 0; i < len(checkSample); i++ {
+	for i := range checkSample {
 		require.Equal(t, testData[i], checkSample[i])
 	}
 }
 
 func TestInternalLargeWrittenContentMatches(t *testing.T) {
 	id := fmt.Sprintf("tilwcm%v", time.Now().Unix())
-	vfsflags.Opt.DirCacheTime = time.Second
+	vfscommon.Opt.DirCacheTime = fs.Duration(time.Second)
 	rootFs, _ := runInstance.newCacheFs(t, remoteName, id, true, true, nil)
 	if runInstance.rootIsCrypt {
 		t.Skip("test skipped with crypt remote")
@@ -388,7 +387,7 @@ func TestInternalLargeWrittenContentMatches(t *testing.T) {
 
 	readData, err := runInstance.readDataFromRemote(t, rootFs, "data.bin", 0, testSize, false)
 	require.NoError(t, err)
-	for i := 0; i < len(readData); i++ {
+	for i := range readData {
 		require.Equalf(t, testData[i], readData[i], "at byte %v", i)
 	}
 }
@@ -408,7 +407,7 @@ func TestInternalWrappedFsChangeNotSeen(t *testing.T) {
 	// update in the wrapped fs
 	originalSize, err := runInstance.size(t, rootFs, "data.bin")
 	require.NoError(t, err)
-	log.Printf("original size: %v", originalSize)
+	fs.Logf(nil, "original size: %v", originalSize)
 
 	o, err := cfs.UnWrap().NewObject(context.Background(), runInstance.encryptRemoteIfNeeded(t, "data.bin"))
 	require.NoError(t, err)
@@ -417,7 +416,7 @@ func TestInternalWrappedFsChangeNotSeen(t *testing.T) {
 	if runInstance.rootIsCrypt {
 		data2, err = base64.StdEncoding.DecodeString(cryptedText3Base64)
 		require.NoError(t, err)
-		expectedSize = expectedSize + 1 // FIXME newline gets in, likely test data issue
+		expectedSize++ // FIXME newline gets in, likely test data issue
 	} else {
 		data2 = []byte("test content")
 	}
@@ -425,7 +424,7 @@ func TestInternalWrappedFsChangeNotSeen(t *testing.T) {
 	err = o.Update(context.Background(), bytes.NewReader(data2), objInfo)
 	require.NoError(t, err)
 	require.Equal(t, int64(len(data2)), o.Size())
-	log.Printf("updated size: %v", len(data2))
+	fs.Logf(nil, "updated size: %v", len(data2))
 
 	// get a new instance from the cache
 	if runInstance.wrappedIsExternal {
@@ -485,49 +484,49 @@ func TestInternalMoveWithNotify(t *testing.T) {
 	err = runInstance.retryBlock(func() error {
 		li, err := runInstance.list(t, rootFs, "test")
 		if err != nil {
-			log.Printf("err: %v", err)
+			fs.Logf(nil, "err: %v", err)
 			return err
 		}
 		if len(li) != 2 {
-			log.Printf("not expected listing /test: %v", li)
+			fs.Logf(nil, "not expected listing /test: %v", li)
 			return fmt.Errorf("not expected listing /test: %v", li)
 		}
 
 		li, err = runInstance.list(t, rootFs, "test/one")
 		if err != nil {
-			log.Printf("err: %v", err)
+			fs.Logf(nil, "err: %v", err)
 			return err
 		}
 		if len(li) != 0 {
-			log.Printf("not expected listing /test/one: %v", li)
+			fs.Logf(nil, "not expected listing /test/one: %v", li)
 			return fmt.Errorf("not expected listing /test/one: %v", li)
 		}
 
 		li, err = runInstance.list(t, rootFs, "test/second")
 		if err != nil {
-			log.Printf("err: %v", err)
+			fs.Logf(nil, "err: %v", err)
 			return err
 		}
 		if len(li) != 1 {
-			log.Printf("not expected listing /test/second: %v", li)
+			fs.Logf(nil, "not expected listing /test/second: %v", li)
 			return fmt.Errorf("not expected listing /test/second: %v", li)
 		}
 		if fi, ok := li[0].(os.FileInfo); ok {
 			if fi.Name() != "data.bin" {
-				log.Printf("not expected name: %v", fi.Name())
+				fs.Logf(nil, "not expected name: %v", fi.Name())
 				return fmt.Errorf("not expected name: %v", fi.Name())
 			}
 		} else if di, ok := li[0].(fs.DirEntry); ok {
 			if di.Remote() != "test/second/data.bin" {
-				log.Printf("not expected remote: %v", di.Remote())
+				fs.Logf(nil, "not expected remote: %v", di.Remote())
 				return fmt.Errorf("not expected remote: %v", di.Remote())
 			}
 		} else {
-			log.Printf("unexpected listing: %v", li)
+			fs.Logf(nil, "unexpected listing: %v", li)
 			return fmt.Errorf("unexpected listing: %v", li)
 		}
 
-		log.Printf("complete listing: %v", li)
+		fs.Logf(nil, "complete listing: %v", li)
 		return nil
 	}, 12, time.Second*10)
 	require.NoError(t, err)
@@ -577,43 +576,43 @@ func TestInternalNotifyCreatesEmptyParts(t *testing.T) {
 	err = runInstance.retryBlock(func() error {
 		found = boltDb.HasEntry(path.Join(cfs.Root(), runInstance.encryptRemoteIfNeeded(t, "test")))
 		if !found {
-			log.Printf("not found /test")
+			fs.Logf(nil, "not found /test")
 			return fmt.Errorf("not found /test")
 		}
 		found = boltDb.HasEntry(path.Join(cfs.Root(), runInstance.encryptRemoteIfNeeded(t, "test"), runInstance.encryptRemoteIfNeeded(t, "one")))
 		if !found {
-			log.Printf("not found /test/one")
+			fs.Logf(nil, "not found /test/one")
 			return fmt.Errorf("not found /test/one")
 		}
 		found = boltDb.HasEntry(path.Join(cfs.Root(), runInstance.encryptRemoteIfNeeded(t, "test"), runInstance.encryptRemoteIfNeeded(t, "one"), runInstance.encryptRemoteIfNeeded(t, "test2")))
 		if !found {
-			log.Printf("not found /test/one/test2")
+			fs.Logf(nil, "not found /test/one/test2")
 			return fmt.Errorf("not found /test/one/test2")
 		}
 		li, err := runInstance.list(t, rootFs, "test/one")
 		if err != nil {
-			log.Printf("err: %v", err)
+			fs.Logf(nil, "err: %v", err)
 			return err
 		}
 		if len(li) != 1 {
-			log.Printf("not expected listing /test/one: %v", li)
+			fs.Logf(nil, "not expected listing /test/one: %v", li)
 			return fmt.Errorf("not expected listing /test/one: %v", li)
 		}
 		if fi, ok := li[0].(os.FileInfo); ok {
 			if fi.Name() != "test2" {
-				log.Printf("not expected name: %v", fi.Name())
+				fs.Logf(nil, "not expected name: %v", fi.Name())
 				return fmt.Errorf("not expected name: %v", fi.Name())
 			}
 		} else if di, ok := li[0].(fs.DirEntry); ok {
 			if di.Remote() != "test/one/test2" {
-				log.Printf("not expected remote: %v", di.Remote())
+				fs.Logf(nil, "not expected remote: %v", di.Remote())
 				return fmt.Errorf("not expected remote: %v", di.Remote())
 			}
 		} else {
-			log.Printf("unexpected listing: %v", li)
+			fs.Logf(nil, "unexpected listing: %v", li)
 			return fmt.Errorf("unexpected listing: %v", li)
 		}
-		log.Printf("complete listing /test/one/test2")
+		fs.Logf(nil, "complete listing /test/one/test2")
 		return nil
 	}, 12, time.Second*10)
 	require.NoError(t, err)
@@ -689,7 +688,7 @@ func TestInternalMaxChunkSizeRespected(t *testing.T) {
 	co, ok := o.(*cache.Object)
 	require.True(t, ok)
 
-	for i := 0; i < 4; i++ { // read first 4
+	for i := range 4 { // read first 4
 		_ = runInstance.readDataFromObj(t, co, chunkSize*int64(i), chunkSize*int64(i+1), false)
 	}
 	cfs.CleanUpCache(true)
@@ -708,7 +707,7 @@ func TestInternalMaxChunkSizeRespected(t *testing.T) {
 
 func TestInternalExpiredEntriesRemoved(t *testing.T) {
 	id := fmt.Sprintf("tieer%v", time.Now().Unix())
-	vfsflags.Opt.DirCacheTime = time.Second * 4 // needs to be lower than the defined
+	vfscommon.Opt.DirCacheTime = fs.Duration(time.Second * 4) // needs to be lower than the defined
 	rootFs, _ := runInstance.newCacheFs(t, remoteName, id, true, true, nil)
 	cfs, err := runInstance.getCacheFs(rootFs)
 	require.NoError(t, err)
@@ -743,7 +742,7 @@ func TestInternalExpiredEntriesRemoved(t *testing.T) {
 }
 
 func TestInternalBug2117(t *testing.T) {
-	vfsflags.Opt.DirCacheTime = time.Second * 10
+	vfscommon.Opt.DirCacheTime = fs.Duration(time.Second * 10)
 
 	id := fmt.Sprintf("tib2117%v", time.Now().Unix())
 	rootFs, _ := runInstance.newCacheFs(t, remoteName, id, false, true, map[string]string{"info_age": "72h", "chunk_clean_interval": "15m"})
@@ -771,24 +770,24 @@ func TestInternalBug2117(t *testing.T) {
 
 	di, err := runInstance.list(t, rootFs, "test/dir1/dir2")
 	require.NoError(t, err)
-	log.Printf("len: %v", len(di))
+	fs.Logf(nil, "len: %v", len(di))
 	require.Len(t, di, 1)
 
 	time.Sleep(time.Second * 30)
 
 	di, err = runInstance.list(t, rootFs, "test/dir1/dir2")
 	require.NoError(t, err)
-	log.Printf("len: %v", len(di))
+	fs.Logf(nil, "len: %v", len(di))
 	require.Len(t, di, 1)
 
 	di, err = runInstance.list(t, rootFs, "test/dir1")
 	require.NoError(t, err)
-	log.Printf("len: %v", len(di))
+	fs.Logf(nil, "len: %v", len(di))
 	require.Len(t, di, 4)
 
 	di, err = runInstance.list(t, rootFs, "test")
 	require.NoError(t, err)
-	log.Printf("len: %v", len(di))
+	fs.Logf(nil, "len: %v", len(di))
 	require.Len(t, di, 4)
 }
 
@@ -829,7 +828,7 @@ func newRun() *run {
 	} else {
 		r.tmpUploadDir = uploadDir
 	}
-	log.Printf("Temp Upload Dir: %v", r.tmpUploadDir)
+	fs.Logf(nil, "Temp Upload Dir: %v", r.tmpUploadDir)
 
 	return r
 }
@@ -850,8 +849,8 @@ func (r *run) encryptRemoteIfNeeded(t *testing.T, remote string) string {
 func (r *run) newCacheFs(t *testing.T, remote, id string, needRemote, purge bool, flags map[string]string) (fs.Fs, *cache.Persistent) {
 	fstest.Initialise()
 	remoteExists := false
-	for _, s := range config.FileSections() {
-		if s == remote {
+	for _, s := range config.GetRemotes() {
+		if s.Name == remote {
 			remoteExists = true
 		}
 	}
@@ -875,12 +874,12 @@ func (r *run) newCacheFs(t *testing.T, remote, id string, needRemote, purge bool
 	cacheRemote := remote
 	if !remoteExists {
 		localRemote := remote + "-local"
-		config.FileSet(localRemote, "type", "local")
-		config.FileSet(localRemote, "nounc", "true")
+		config.FileSetValue(localRemote, "type", "local")
+		config.FileSetValue(localRemote, "nounc", "true")
 		m.Set("type", "cache")
 		m.Set("remote", localRemote+":"+filepath.Join(os.TempDir(), localRemote))
 	} else {
-		remoteType := config.FileGet(remote, "type")
+		remoteType := config.GetValue(remote, "type")
 		if remoteType == "" {
 			t.Skipf("skipped due to invalid remote type for %v", remote)
 			return nil, nil
@@ -891,14 +890,14 @@ func (r *run) newCacheFs(t *testing.T, remote, id string, needRemote, purge bool
 				m.Set("password", cryptPassword1)
 				m.Set("password2", cryptPassword2)
 			}
-			remoteRemote := config.FileGet(remote, "remote")
+			remoteRemote := config.GetValue(remote, "remote")
 			if remoteRemote == "" {
 				t.Skipf("skipped due to invalid remote wrapper for %v", remote)
 				return nil, nil
 			}
 			remoteRemoteParts := strings.Split(remoteRemote, ":")
 			remoteWrapping := remoteRemoteParts[0]
-			remoteType := config.FileGet(remoteWrapping, "type")
+			remoteType := config.GetValue(remoteWrapping, "type")
 			if remoteType != "cache" {
 				t.Skipf("skipped due to invalid remote type for %v: '%v'", remoteWrapping, remoteType)
 				return nil, nil
@@ -972,7 +971,7 @@ func (r *run) randomReader(t *testing.T, size int64) io.ReadCloser {
 	f, err := os.CreateTemp("", "rclonecache-tempfile")
 	require.NoError(t, err)
 
-	for i := 0; i < int(cnt); i++ {
+	for range int(cnt) {
 		data := randStringBytes(int(chunk))
 		_, _ = f.Write(data)
 	}
@@ -1086,9 +1085,9 @@ func (r *run) rm(t *testing.T, f fs.Fs, remote string) error {
 	return err
 }
 
-func (r *run) list(t *testing.T, f fs.Fs, remote string) ([]interface{}, error) {
+func (r *run) list(t *testing.T, f fs.Fs, remote string) ([]any, error) {
 	var err error
-	var l []interface{}
+	var l []any
 	var list fs.DirEntries
 	list, err = f.List(context.Background(), remote)
 	for _, ll := range list {
@@ -1192,7 +1191,7 @@ func (r *run) updateData(t *testing.T, rootFs fs.Fs, src, data, append string) e
 func (r *run) cleanSize(t *testing.T, size int64) int64 {
 	if r.rootIsCrypt {
 		denominator := int64(65536 + 16)
-		size = size - 32
+		size -= 32
 		quotient := size / denominator
 		remainder := size % denominator
 		return (quotient*65536 + remainder - 16)
@@ -1216,7 +1215,7 @@ func (r *run) listenForBackgroundUpload(t *testing.T, f fs.Fs, remote string) ch
 		var err error
 		var state cache.BackgroundUploadState
 
-		for i := 0; i < 2; i++ {
+		for range 2 {
 			select {
 			case state = <-buCh:
 				// continue
@@ -1294,7 +1293,7 @@ func (r *run) completeAllBackgroundUploads(t *testing.T, f fs.Fs, lastRemote str
 
 func (r *run) retryBlock(block func() error, maxRetries int, rate time.Duration) error {
 	var err error
-	for i := 0; i < maxRetries; i++ {
+	for range maxRetries {
 		err = block()
 		if err == nil {
 			return nil

backend/cache/cache_test.go

@@ -17,7 +17,7 @@ func TestIntegration(t *testing.T) {
 	fstests.Run(t, &fstests.Opt{
 		RemoteName:                      "TestCache:",
 		NilObject:                       (*cache.Object)(nil),
-		UnimplementableFsMethods:        []string{"PublicLink", "OpenWriterAt", "OpenChunkWriter", "DirSetModTime", "MkdirMetadata"},
+		UnimplementableFsMethods:        []string{"PublicLink", "OpenWriterAt", "OpenChunkWriter", "DirSetModTime", "MkdirMetadata", "ListP"},
 		UnimplementableObjectMethods:    []string{"MimeType", "ID", "GetTier", "SetTier", "Metadata", "SetMetadata"},
 		UnimplementableDirectoryMethods: []string{"Metadata", "SetMetadata", "SetModTime"},
 		SkipInvalidUTF8:                 true, // invalid UTF-8 confuses the cache

backend/cache/cache_upload_test.go

@@ -162,7 +162,7 @@ func TestInternalUploadQueueMoreFiles(t *testing.T) {
 	randInstance := rand.New(rand.NewSource(time.Now().Unix()))
 
 	lastFile := ""
-	for i := 0; i < totalFiles; i++ {
+	for i := range totalFiles {
 		size := int64(randInstance.Intn(maxSize-minSize) + minSize)
 		testReader := runInstance.randomReader(t, size)
 		remote := "test/" + strconv.Itoa(i) + ".bin"

backend/cache/handle.go

@@ -182,7 +182,7 @@ func (r *Handle) queueOffset(offset int64) {
 			}
 		}
 
-		for i := 0; i < r.workers; i++ {
+		for i := range r.workers {
 			o := r.preloadOffset + int64(r.cacheFs().opt.ChunkSize)*int64(i)
 			if o < 0 || o >= r.cachedObject.Size() {
 				continue
@@ -208,7 +208,7 @@ func (r *Handle) getChunk(chunkStart int64) ([]byte, error) {
 	offset := chunkStart % int64(r.cacheFs().opt.ChunkSize)
 
 	// we align the start offset of the first chunk to a likely chunk in the storage
-	chunkStart = chunkStart - offset
+	chunkStart -= offset
 	r.queueOffset(chunkStart)
 	found := false
 
@@ -222,7 +222,7 @@ func (r *Handle) getChunk(chunkStart int64) ([]byte, error) {
 	if !found {
 		// we're gonna give the workers a chance to pickup the chunk
 		// and retry a couple of times
-		for i := 0; i < r.cacheFs().opt.ReadRetries*8; i++ {
+		for i := range r.cacheFs().opt.ReadRetries * 8 {
 			data, err = r.storage().GetChunk(r.cachedObject, chunkStart)
 			if err == nil {
 				found = true
@@ -327,7 +327,7 @@ func (r *Handle) Seek(offset int64, whence int) (int64, error) {
 
 	chunkStart := r.offset - (r.offset % int64(r.cacheFs().opt.ChunkSize))
 	if chunkStart >= int64(r.cacheFs().opt.ChunkSize) {
-		chunkStart = chunkStart - int64(r.cacheFs().opt.ChunkSize)
+		chunkStart -= int64(r.cacheFs().opt.ChunkSize)
 	}
 	r.queueOffset(chunkStart)
 
@@ -415,10 +415,8 @@ func (w *worker) run() {
 					continue
 				}
 			}
-		} else {
-			if w.r.storage().HasChunk(w.r.cachedObject, chunkStart) {
-				continue
-			}
+		} else if w.r.storage().HasChunk(w.r.cachedObject, chunkStart) {
+			continue
 		}
 
 		chunkEnd := chunkStart + int64(w.r.cacheFs().opt.ChunkSize)

backend/cache/plex.go

@@ -209,7 +209,7 @@ func (p *plexConnector) authenticate() error {
 	if err != nil {
 		return err
 	}
-	var data map[string]interface{}
+	var data map[string]any
 	err = json.NewDecoder(resp.Body).Decode(&data)
 	if err != nil {
 		return fmt.Errorf("failed to obtain token: %w", err)
@@ -273,11 +273,11 @@ func (p *plexConnector) isPlaying(co *Object) bool {
 }
 
 // adapted from: https://stackoverflow.com/a/28878037 (credit)
-func get(m interface{}, path ...interface{}) (interface{}, bool) {
+func get(m any, path ...any) (any, bool) {
 	for _, p := range path {
 		switch idx := p.(type) {
 		case string:
-			if mm, ok := m.(map[string]interface{}); ok {
+			if mm, ok := m.(map[string]any); ok {
 				if val, found := mm[idx]; found {
 					m = val
 					continue
@@ -285,7 +285,7 @@ func get(m interface{}, path ...interface{}) (interface{}, bool) {
 			}
 			return nil, false
 		case int:
-			if mm, ok := m.([]interface{}); ok {
+			if mm, ok := m.([]any); ok {
 				if len(mm) > idx {
 					m = mm[idx]
 					continue

backend/cache/storage_persistent.go

@@ -18,6 +18,7 @@ import (
 	"github.com/rclone/rclone/fs"
 	"github.com/rclone/rclone/fs/walk"
 	bolt "go.etcd.io/bbolt"
+	"go.etcd.io/bbolt/errors"
 )
 
 // Constants
@@ -597,7 +598,7 @@ func (b *Persistent) CleanChunksBySize(maxSize int64) {
 	})
 
 	if err != nil {
-		if err == bolt.ErrDatabaseNotOpen {
+		if err == errors.ErrDatabaseNotOpen {
 			// we're likely a late janitor and we need to end quietly as there's no guarantee of what exists anymore
 			return
 		}
@@ -606,16 +607,16 @@ func (b *Persistent) CleanChunksBySize(maxSize int64) {
 }
 
 // Stats returns a go map with the stats key values
-func (b *Persistent) Stats() (map[string]map[string]interface{}, error) {
-	r := make(map[string]map[string]interface{})
-	r["data"] = make(map[string]interface{})
+func (b *Persistent) Stats() (map[string]map[string]any, error) {
+	r := make(map[string]map[string]any)
+	r["data"] = make(map[string]any)
 	r["data"]["oldest-ts"] = time.Now()
 	r["data"]["oldest-file"] = ""
 	r["data"]["newest-ts"] = time.Now()
 	r["data"]["newest-file"] = ""
 	r["data"]["total-chunks"] = 0
 	r["data"]["total-size"] = int64(0)
-	r["files"] = make(map[string]interface{})
+	r["files"] = make(map[string]any)
 	r["files"]["oldest-ts"] = time.Now()
 	r["files"]["oldest-name"] = ""
 	r["files"]["newest-ts"] = time.Now()

backend/chunker/chunker.go

@@ -356,7 +356,8 @@ func NewFs(ctx context.Context, name, rpath string, m configmap.Mapper) (fs.Fs,
 		DirModTimeUpdatesOnWrite: true,
 	}).Fill(ctx, f).Mask(ctx, baseFs).WrapsFs(f, baseFs)
 
-	f.features.Disable("ListR") // Recursive listing may cause chunker skip files
+	f.features.ListR = nil // Recursive listing may cause chunker skip files
+	f.features.ListP = nil // ListP not supported yet
 
 	return f, err
 }
@@ -632,7 +633,7 @@ func (f *Fs) parseChunkName(filePath string) (parentPath string, chunkNo int, ct
 
 // forbidChunk prints error message or raises error if file is chunk.
 // First argument sets log prefix, use `false` to suppress message.
-func (f *Fs) forbidChunk(o interface{}, filePath string) error {
+func (f *Fs) forbidChunk(o any, filePath string) error {
 	if parentPath, _, _, _ := f.parseChunkName(filePath); parentPath != "" {
 		if f.opt.FailHard {
 			return fmt.Errorf("chunk overlap with %q", parentPath)
@@ -680,7 +681,7 @@ func (f *Fs) newXactID(ctx context.Context, filePath string) (xactID string, err
 	circleSec := unixSec % closestPrimeZzzzSeconds
 	first4chars := strconv.FormatInt(circleSec, 36)
 
-	for tries := 0; tries < maxTransactionProbes; tries++ {
+	for range maxTransactionProbes {
 		f.xactIDMutex.Lock()
 		randomness := f.xactIDRand.Int63n(maxTwoBase36Digits + 1)
 		f.xactIDMutex.Unlock()
@@ -987,7 +988,7 @@ func (f *Fs) scanObject(ctx context.Context, remote string, quickScan bool) (fs.
 		}
 	}
 
-	if o.main == nil && (o.chunks == nil || len(o.chunks) == 0) {
+	if o.main == nil && len(o.chunks) == 0 {
 		// Scanning hasn't found data chunks with conforming names.
 		if f.useMeta || quickScan {
 			// Metadata is required but absent and there are no chunks.
@@ -1189,10 +1190,7 @@ func (f *Fs) put(
 		}
 
 		tempRemote := f.makeChunkName(baseRemote, c.chunkNo, "", xactID)
-		size := c.sizeLeft
-		if size > c.chunkSize {
-			size = c.chunkSize
-		}
+		size := min(c.sizeLeft, c.chunkSize)
 		savedReadCount := c.readCount
 
 		// If a single chunk is expected, avoid the extra rename operation
@@ -1477,10 +1475,7 @@ func (c *chunkingReader) dummyRead(in io.Reader, size int64) error {
 	const bufLen = 1048576 // 1 MiB
 	buf := make([]byte, bufLen)
 	for size > 0 {
-		n := size
-		if n > bufLen {
-			n = bufLen
-		}
+		n := min(size, bufLen)
 		if _, err := io.ReadFull(in, buf[0:n]); err != nil {
 			return err
 		}
@@ -1866,6 +1861,8 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 
 // baseMove chains to the wrapped Move or simulates it by Copy+Delete
 func (f *Fs) baseMove(ctx context.Context, src fs.Object, remote string, delMode int) (fs.Object, error) {
+	ctx, ci := fs.AddConfig(ctx)
+	ci.NameTransform = nil // ensure operations.Move does not double-transform here
 	var (
 		dest fs.Object
 		err  error
@@ -2480,7 +2477,7 @@ func unmarshalSimpleJSON(ctx context.Context, metaObject fs.Object, data []byte)
 	if len(data) > maxMetadataSizeWritten {
 		return nil, false, ErrMetaTooBig
 	}
-	if data == nil || len(data) < 2 || data[0] != '{' || data[len(data)-1] != '}' {
+	if len(data) < 2 || data[0] != '{' || data[len(data)-1] != '}' {
 		return nil, false, errors.New("invalid json")
 	}
 	var metadata metaSimpleJSON

backend/chunker/chunker_internal_test.go

@@ -40,7 +40,7 @@ func testPutLarge(t *testing.T, f *Fs, kilobytes int) {
 	})
 }
 
-type settings map[string]interface{}
+type settings map[string]any
 
 func deriveFs(ctx context.Context, t *testing.T, f fs.Fs, path string, opts settings) fs.Fs {
 	fsName := strings.Split(f.Name(), "{")[0] // strip off hash

backend/chunker/chunker_test.go

@@ -46,6 +46,7 @@ func TestIntegration(t *testing.T) {
 			"DirCacheFlush",
 			"UserInfo",
 			"Disconnect",
+			"ListP",
 		},
 	}
 	if *fstest.RemoteName == "" {

backend/cloudinary/api/types.go

@@ -0,0 +1,48 @@
+// Package api has type definitions for cloudinary
+package api
+
+import (
+	"fmt"
+)
+
+// CloudinaryEncoder extends the built-in encoder
+type CloudinaryEncoder interface {
+	// FromStandardPath takes a / separated path in Standard encoding
+	// and converts it to a / separated path in this encoding.
+	FromStandardPath(string) string
+	// FromStandardName takes name in Standard encoding and converts
+	// it in this encoding.
+	FromStandardName(string) string
+	// ToStandardPath takes a / separated path in this encoding
+	// and converts it to a / separated path in Standard encoding.
+	ToStandardPath(string) string
+	// ToStandardName takes name in this encoding and converts
+	// it in Standard encoding.
+	ToStandardName(string, string) string
+	// Encoded root of the remote (as passed into NewFs)
+	FromStandardFullPath(string) string
+}
+
+// UpdateOptions was created to pass options from Update to Put
+type UpdateOptions struct {
+	PublicID     string
+	ResourceType string
+	DeliveryType string
+	AssetFolder  string
+	DisplayName  string
+}
+
+// Header formats the option as a string
+func (o *UpdateOptions) Header() (string, string) {
+	return "UpdateOption", fmt.Sprintf("%s/%s/%s", o.ResourceType, o.DeliveryType, o.PublicID)
+}
+
+// Mandatory returns whether the option must be parsed or can be ignored
+func (o *UpdateOptions) Mandatory() bool {
+	return false
+}
+
+// String formats the option into human-readable form
+func (o *UpdateOptions) String() string {
+	return fmt.Sprintf("Fully qualified Public ID: %s/%s/%s", o.ResourceType, o.DeliveryType, o.PublicID)
+}

backend/cloudinary/cloudinary.go

@@ -0,0 +1,754 @@
+// Package cloudinary provides an interface to the Cloudinary DAM
+package cloudinary
+
+import (
+	"context"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"path"
+	"slices"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/cloudinary/cloudinary-go/v2"
+	SDKApi "github.com/cloudinary/cloudinary-go/v2/api"
+	"github.com/cloudinary/cloudinary-go/v2/api/admin"
+	"github.com/cloudinary/cloudinary-go/v2/api/admin/search"
+	"github.com/cloudinary/cloudinary-go/v2/api/uploader"
+	"github.com/rclone/rclone/backend/cloudinary/api"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/config"
+	"github.com/rclone/rclone/fs/config/configmap"
+	"github.com/rclone/rclone/fs/config/configstruct"
+	"github.com/rclone/rclone/fs/fserrors"
+	"github.com/rclone/rclone/fs/fshttp"
+	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/lib/encoder"
+	"github.com/rclone/rclone/lib/pacer"
+	"github.com/rclone/rclone/lib/rest"
+	"github.com/zeebo/blake3"
+)
+
+// Cloudinary shouldn't have a trailing dot if there is no path
+func cldPathDir(somePath string) string {
+	if somePath == "" || somePath == "." {
+		return somePath
+	}
+	dir := path.Dir(somePath)
+	if dir == "." {
+		return ""
+	}
+	return dir
+}
+
+// Register with Fs
+func init() {
+	fs.Register(&fs.RegInfo{
+		Name:        "cloudinary",
+		Description: "Cloudinary",
+		NewFs:       NewFs,
+		Options: []fs.Option{
+			{
+				Name:      "cloud_name",
+				Help:      "Cloudinary Environment Name",
+				Required:  true,
+				Sensitive: true,
+			},
+			{
+				Name:      "api_key",
+				Help:      "Cloudinary API Key",
+				Required:  true,
+				Sensitive: true,
+			},
+			{
+				Name:      "api_secret",
+				Help:      "Cloudinary API Secret",
+				Required:  true,
+				Sensitive: true,
+			},
+			{
+				Name: "upload_prefix",
+				Help: "Specify the API endpoint for environments out of the US",
+			},
+			{
+				Name: "upload_preset",
+				Help: "Upload Preset to select asset manipulation on upload",
+			},
+			{
+				Name:     config.ConfigEncoding,
+				Help:     config.ConfigEncodingHelp,
+				Advanced: true,
+				Default: (encoder.Base | //  Slash,LtGt,DoubleQuote,Question,Asterisk,Pipe,Hash,Percent,BackSlash,Del,Ctl,RightSpace,InvalidUtf8,Dot
+					encoder.EncodeSlash |
+					encoder.EncodeLtGt |
+					encoder.EncodeDoubleQuote |
+					encoder.EncodeQuestion |
+					encoder.EncodeAsterisk |
+					encoder.EncodePipe |
+					encoder.EncodeHash |
+					encoder.EncodePercent |
+					encoder.EncodeBackSlash |
+					encoder.EncodeDel |
+					encoder.EncodeCtl |
+					encoder.EncodeRightSpace |
+					encoder.EncodeInvalidUtf8 |
+					encoder.EncodeDot),
+			},
+			{
+				Name:     "eventually_consistent_delay",
+				Default:  fs.Duration(0),
+				Advanced: true,
+				Help:     "Wait N seconds for eventual consistency of the databases that support the backend operation",
+			},
+			{
+				Name:     "adjust_media_files_extensions",
+				Default:  true,
+				Advanced: true,
+				Help:     "Cloudinary handles media formats as a file attribute and strips it from the name, which is unlike most other file systems",
+			},
+			{
+				Name: "media_extensions",
+				Default: []string{
+					"3ds", "3g2", "3gp", "ai", "arw", "avi", "avif", "bmp", "bw",
+					"cr2", "cr3", "djvu", "dng", "eps3", "fbx", "flif", "flv", "gif",
+					"glb", "gltf", "hdp", "heic", "heif", "ico", "indd", "jp2", "jpe",
+					"jpeg", "jpg", "jxl", "jxr", "m2ts", "mov", "mp4", "mpeg", "mts",
+					"mxf", "obj", "ogv", "pdf", "ply", "png", "psd", "svg", "tga",
+					"tif", "tiff", "ts", "u3ma", "usdz", "wdp", "webm", "webp", "wmv"},
+				Advanced: true,
+				Help:     "Cloudinary supported media extensions",
+			},
+		},
+	})
+}
+
+// Options defines the configuration for this backend
+type Options struct {
+	CloudName                  string               `config:"cloud_name"`
+	APIKey                     string               `config:"api_key"`
+	APISecret                  string               `config:"api_secret"`
+	UploadPrefix               string               `config:"upload_prefix"`
+	UploadPreset               string               `config:"upload_preset"`
+	Enc                        encoder.MultiEncoder `config:"encoding"`
+	EventuallyConsistentDelay  fs.Duration          `config:"eventually_consistent_delay"`
+	MediaExtensions            []string             `config:"media_extensions"`
+	AdjustMediaFilesExtensions bool                 `config:"adjust_media_files_extensions"`
+}
+
+// Fs represents a remote cloudinary server
+type Fs struct {
+	name     string
+	root     string
+	opt      Options
+	features *fs.Features
+	pacer    *fs.Pacer
+	srv      *rest.Client           // For downloading assets via the Cloudinary CDN
+	cld      *cloudinary.Cloudinary // API calls are going through the Cloudinary SDK
+	lastCRUD time.Time
+}
+
+// Object describes a cloudinary object
+type Object struct {
+	fs           *Fs
+	remote       string
+	size         int64
+	modTime      time.Time
+	url          string
+	md5sum       string
+	publicID     string
+	resourceType string
+	deliveryType string
+}
+
+// NewFs constructs an Fs from the path, bucket:path
+func NewFs(ctx context.Context, name string, root string, m configmap.Mapper) (fs.Fs, error) {
+	opt := new(Options)
+	err := configstruct.Set(m, opt)
+	if err != nil {
+		return nil, err
+	}
+
+	// Initialize the Cloudinary client
+	cld, err := cloudinary.NewFromParams(opt.CloudName, opt.APIKey, opt.APISecret)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create Cloudinary client: %w", err)
+	}
+	cld.Admin.Client = *fshttp.NewClient(ctx)
+	cld.Upload.Client = *fshttp.NewClient(ctx)
+	if opt.UploadPrefix != "" {
+		cld.Config.API.UploadPrefix = opt.UploadPrefix
+	}
+	client := fshttp.NewClient(ctx)
+	f := &Fs{
+		name:  name,
+		root:  root,
+		opt:   *opt,
+		cld:   cld,
+		pacer: fs.NewPacer(ctx, pacer.NewDefault(pacer.MinSleep(1000), pacer.MaxSleep(10000), pacer.DecayConstant(2))),
+		srv:   rest.NewClient(client),
+	}
+
+	f.features = (&fs.Features{
+		CanHaveEmptyDirectories: true,
+	}).Fill(ctx, f)
+
+	if root != "" {
+		// Check to see if the root actually an existing file
+		remote := path.Base(root)
+		f.root = cldPathDir(root)
+		_, err := f.NewObject(ctx, remote)
+		if err != nil {
+			if err == fs.ErrorObjectNotFound || errors.Is(err, fs.ErrorNotAFile) {
+				// File doesn't exist so return the previous root
+				f.root = root
+				return f, nil
+			}
+			return nil, err
+		}
+		// return an error with an fs which points to the parent
+		return f, fs.ErrorIsFile
+	}
+	return f, nil
+}
+
+// ------------------------------------------------------------
+
+// FromStandardPath implementation of the api.CloudinaryEncoder
+func (f *Fs) FromStandardPath(s string) string {
+	return strings.ReplaceAll(f.opt.Enc.FromStandardPath(s), "&", "\uFF06")
+}
+
+// FromStandardName implementation of the api.CloudinaryEncoder
+func (f *Fs) FromStandardName(s string) string {
+	if f.opt.AdjustMediaFilesExtensions {
+		parsedURL, err := url.Parse(s)
+		ext := ""
+		if err != nil {
+			fs.Logf(nil, "Error parsing URL: %v", err)
+		} else {
+			ext = path.Ext(parsedURL.Path)
+			if slices.Contains(f.opt.MediaExtensions, strings.ToLower(strings.TrimPrefix(ext, "."))) {
+				s = strings.TrimSuffix(parsedURL.Path, ext)
+			}
+		}
+	}
+	return strings.ReplaceAll(f.opt.Enc.FromStandardName(s), "&", "\uFF06")
+}
+
+// ToStandardPath implementation of the api.CloudinaryEncoder
+func (f *Fs) ToStandardPath(s string) string {
+	return strings.ReplaceAll(f.opt.Enc.ToStandardPath(s), "\uFF06", "&")
+}
+
+// ToStandardName implementation of the api.CloudinaryEncoder
+func (f *Fs) ToStandardName(s string, assetURL string) string {
+	ext := ""
+	if f.opt.AdjustMediaFilesExtensions {
+		parsedURL, err := url.Parse(assetURL)
+		if err != nil {
+			fs.Logf(nil, "Error parsing URL: %v", err)
+		} else {
+			ext = path.Ext(parsedURL.Path)
+			if !slices.Contains(f.opt.MediaExtensions, strings.ToLower(strings.TrimPrefix(ext, "."))) {
+				ext = ""
+			}
+		}
+	}
+	return strings.ReplaceAll(f.opt.Enc.ToStandardName(s), "\uFF06", "&") + ext
+}
+
+// FromStandardFullPath encodes a full path to Cloudinary standard
+func (f *Fs) FromStandardFullPath(dir string) string {
+	return path.Join(api.CloudinaryEncoder.FromStandardPath(f, f.root), api.CloudinaryEncoder.FromStandardPath(f, dir))
+}
+
+// ToAssetFolderAPI encodes folders as expected by the Cloudinary SDK
+func (f *Fs) ToAssetFolderAPI(dir string) string {
+	return strings.ReplaceAll(dir, "%", "%25")
+}
+
+// ToDisplayNameElastic encodes a special case of elasticsearch
+func (f *Fs) ToDisplayNameElastic(dir string) string {
+	return strings.ReplaceAll(dir, "!", "\\!")
+}
+
+// Name of the remote (as passed into NewFs)
+func (f *Fs) Name() string {
+	return f.name
+}
+
+// Root of the remote (as passed into NewFs)
+func (f *Fs) Root() string {
+	return f.root
+}
+
+// WaitEventuallyConsistent waits till the FS is eventually consistent
+func (f *Fs) WaitEventuallyConsistent() {
+	if f.opt.EventuallyConsistentDelay == fs.Duration(0) {
+		return
+	}
+	delay := time.Duration(f.opt.EventuallyConsistentDelay)
+	timeSinceLastCRUD := time.Since(f.lastCRUD)
+	if timeSinceLastCRUD < delay {
+		time.Sleep(delay - timeSinceLastCRUD)
+	}
+}
+
+// String converts this Fs to a string
+func (f *Fs) String() string {
+	return fmt.Sprintf("Cloudinary root '%s'", f.root)
+}
+
+// Features returns the optional features of this Fs
+func (f *Fs) Features() *fs.Features {
+	return f.features
+}
+
+// List the objects and directories in dir into entries
+func (f *Fs) List(ctx context.Context, dir string) (fs.DirEntries, error) {
+	remotePrefix := f.FromStandardFullPath(dir)
+	if remotePrefix != "" && !strings.HasSuffix(remotePrefix, "/") {
+		remotePrefix += "/"
+	}
+
+	var entries fs.DirEntries
+	dirs := make(map[string]struct{})
+	nextCursor := ""
+	f.WaitEventuallyConsistent()
+	for {
+		// user the folders api to list folders.
+		folderParams := admin.SubFoldersParams{
+			Folder:     f.ToAssetFolderAPI(remotePrefix),
+			MaxResults: 500,
+		}
+		if nextCursor != "" {
+			folderParams.NextCursor = nextCursor
+		}
+
+		results, err := f.cld.Admin.SubFolders(ctx, folderParams)
+		if err != nil {
+			return nil, fmt.Errorf("failed to list sub-folders: %w", err)
+		}
+		if results.Error.Message != "" {
+			if strings.HasPrefix(results.Error.Message, "Can't find folder with path") {
+				return nil, fs.ErrorDirNotFound
+			}
+
+			return nil, fmt.Errorf("failed to list sub-folders: %s", results.Error.Message)
+		}
+
+		for _, folder := range results.Folders {
+			relativePath := api.CloudinaryEncoder.ToStandardPath(f, strings.TrimPrefix(folder.Path, remotePrefix))
+			parts := strings.Split(relativePath, "/")
+
+			// It's a directory
+			dirName := parts[len(parts)-1]
+			if _, found := dirs[dirName]; !found {
+				d := fs.NewDir(path.Join(dir, dirName), time.Time{})
+				entries = append(entries, d)
+				dirs[dirName] = struct{}{}
+			}
+		}
+		// Break if there are no more results
+		if results.NextCursor == "" {
+			break
+		}
+		nextCursor = results.NextCursor
+	}
+
+	for {
+		// Use the assets.AssetsByAssetFolder API to list assets
+		assetsParams := admin.AssetsByAssetFolderParams{
+			AssetFolder: remotePrefix,
+			MaxResults:  500,
+		}
+		if nextCursor != "" {
+			assetsParams.NextCursor = nextCursor
+		}
+
+		results, err := f.cld.Admin.AssetsByAssetFolder(ctx, assetsParams)
+		if err != nil {
+			return nil, fmt.Errorf("failed to list assets: %w", err)
+		}
+
+		for _, asset := range results.Assets {
+			remote := path.Join(dir, api.CloudinaryEncoder.ToStandardName(f, asset.DisplayName, asset.SecureURL))
+			o := &Object{
+				fs:           f,
+				remote:       remote,
+				size:         int64(asset.Bytes),
+				modTime:      asset.CreatedAt,
+				url:          asset.SecureURL,
+				publicID:     asset.PublicID,
+				resourceType: asset.AssetType,
+				deliveryType: asset.Type,
+			}
+			entries = append(entries, o)
+		}
+
+		// Break if there are no more results
+		if results.NextCursor == "" {
+			break
+		}
+		nextCursor = results.NextCursor
+	}
+
+	return entries, nil
+}
+
+// NewObject finds the Object at remote. If it can't be found it returns the error fs.ErrorObjectNotFound.
+func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error) {
+	searchParams := search.Query{
+		Expression: fmt.Sprintf("asset_folder:\"%s\" AND display_name:\"%s\"",
+			f.FromStandardFullPath(cldPathDir(remote)),
+			f.ToDisplayNameElastic(api.CloudinaryEncoder.FromStandardName(f, path.Base(remote)))),
+		SortBy:     []search.SortByField{{"uploaded_at": "desc"}},
+		MaxResults: 2,
+	}
+	var results *admin.SearchResult
+	f.WaitEventuallyConsistent()
+	err := f.pacer.Call(func() (bool, error) {
+		var err1 error
+		results, err1 = f.cld.Admin.Search(ctx, searchParams)
+		if err1 == nil && results.TotalCount != len(results.Assets) {
+			err1 = errors.New("partial response so waiting for eventual consistency")
+		}
+		return shouldRetry(ctx, nil, err1)
+	})
+	if err != nil {
+		return nil, fs.ErrorObjectNotFound
+	}
+	if results.TotalCount == 0 || len(results.Assets) == 0 {
+		return nil, fs.ErrorObjectNotFound
+	}
+	asset := results.Assets[0]
+
+	o := &Object{
+		fs:           f,
+		remote:       remote,
+		size:         int64(asset.Bytes),
+		modTime:      asset.UploadedAt,
+		url:          asset.SecureURL,
+		md5sum:       asset.Etag,
+		publicID:     asset.PublicID,
+		resourceType: asset.ResourceType,
+		deliveryType: asset.Type,
+	}
+
+	return o, nil
+}
+
+func (f *Fs) getSuggestedPublicID(assetFolder string, displayName string, modTime time.Time) string {
+	payload := []byte(path.Join(assetFolder, displayName))
+	hash := blake3.Sum256(payload)
+	return hex.EncodeToString(hash[:])
+}
+
+// Put uploads content to Cloudinary
+func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
+	if src.Size() == 0 {
+		return nil, fs.ErrorCantUploadEmptyFiles
+	}
+
+	params := uploader.UploadParams{
+		UploadPreset: f.opt.UploadPreset,
+	}
+
+	updateObject := false
+	var modTime time.Time
+	for _, option := range options {
+		if updateOptions, ok := option.(*api.UpdateOptions); ok {
+			if updateOptions.PublicID != "" {
+				updateObject = true
+				params.Overwrite = SDKApi.Bool(true)
+				params.Invalidate = SDKApi.Bool(true)
+				params.PublicID = updateOptions.PublicID
+				params.ResourceType = updateOptions.ResourceType
+				params.Type = SDKApi.DeliveryType(updateOptions.DeliveryType)
+				params.AssetFolder = updateOptions.AssetFolder
+				params.DisplayName = updateOptions.DisplayName
+				modTime = src.ModTime(ctx)
+			}
+		}
+	}
+	if !updateObject {
+		params.AssetFolder = f.FromStandardFullPath(cldPathDir(src.Remote()))
+		params.DisplayName = api.CloudinaryEncoder.FromStandardName(f, path.Base(src.Remote()))
+		// We want to conform to the unique asset ID of rclone, which is (asset_folder,display_name,last_modified).
+		// We also want to enable customers to choose their own public_id, in case duplicate names are not a crucial use case.
+		// Upload_presets that apply randomness to the public ID would not work well with rclone duplicate assets support.
+		params.FilenameOverride = f.getSuggestedPublicID(params.AssetFolder, params.DisplayName, src.ModTime(ctx))
+	}
+	uploadResult, err := f.cld.Upload.Upload(ctx, in, params)
+	f.lastCRUD = time.Now()
+	if err != nil {
+		return nil, fmt.Errorf("failed to upload to Cloudinary: %w", err)
+	}
+	if !updateObject {
+		modTime = uploadResult.CreatedAt
+	}
+	if uploadResult.Error.Message != "" {
+		return nil, errors.New(uploadResult.Error.Message)
+	}
+
+	o := &Object{
+		fs:           f,
+		remote:       src.Remote(),
+		size:         int64(uploadResult.Bytes),
+		modTime:      modTime,
+		url:          uploadResult.SecureURL,
+		md5sum:       uploadResult.Etag,
+		publicID:     uploadResult.PublicID,
+		resourceType: uploadResult.ResourceType,
+		deliveryType: uploadResult.Type,
+	}
+	return o, nil
+}
+
+// Precision of the remote
+func (f *Fs) Precision() time.Duration {
+	return fs.ModTimeNotSupported
+}
+
+// Hashes returns the supported hash sets
+func (f *Fs) Hashes() hash.Set {
+	return hash.Set(hash.MD5)
+}
+
+// Mkdir creates empty folders
+func (f *Fs) Mkdir(ctx context.Context, dir string) error {
+	params := admin.CreateFolderParams{Folder: f.ToAssetFolderAPI(f.FromStandardFullPath(dir))}
+	res, err := f.cld.Admin.CreateFolder(ctx, params)
+	f.lastCRUD = time.Now()
+	if err != nil {
+		return err
+	}
+	if res.Error.Message != "" {
+		return errors.New(res.Error.Message)
+	}
+
+	return nil
+}
+
+// Rmdir deletes empty folders
+func (f *Fs) Rmdir(ctx context.Context, dir string) error {
+	// Additional test because Cloudinary will delete folders without
+	// assets, regardless of empty sub-folders
+	folder := f.ToAssetFolderAPI(f.FromStandardFullPath(dir))
+	folderParams := admin.SubFoldersParams{
+		Folder:     folder,
+		MaxResults: 1,
+	}
+	results, err := f.cld.Admin.SubFolders(ctx, folderParams)
+	if err != nil {
+		return err
+	}
+	if results.TotalCount > 0 {
+		return fs.ErrorDirectoryNotEmpty
+	}
+
+	params := admin.DeleteFolderParams{Folder: folder}
+	res, err := f.cld.Admin.DeleteFolder(ctx, params)
+	f.lastCRUD = time.Now()
+	if err != nil {
+		return err
+	}
+	if res.Error.Message != "" {
+		if strings.HasPrefix(res.Error.Message, "Can't find folder with path") {
+			return fs.ErrorDirNotFound
+		}
+
+		return errors.New(res.Error.Message)
+	}
+
+	return nil
+}
+
+// retryErrorCodes is a slice of error codes that we will retry
+var retryErrorCodes = []int{
+	420, // Too Many Requests (legacy)
+	429, // Too Many Requests
+	500, // Internal Server Error
+	502, // Bad Gateway
+	503, // Service Unavailable
+	504, // Gateway Timeout
+	509, // Bandwidth Limit Exceeded
+}
+
+// shouldRetry returns a boolean as to whether this resp and err
+// deserve to be retried.  It returns the err as a convenience
+func shouldRetry(ctx context.Context, resp *http.Response, err error) (bool, error) {
+	if fserrors.ContextError(ctx, &err) {
+		return false, err
+	}
+	if err != nil {
+		tryAgain := "Try again on "
+		if idx := strings.Index(err.Error(), tryAgain); idx != -1 {
+			layout := "2006-01-02 15:04:05 UTC"
+			dateStr := err.Error()[idx+len(tryAgain) : idx+len(tryAgain)+len(layout)]
+			timestamp, err2 := time.Parse(layout, dateStr)
+			if err2 == nil {
+				return true, fserrors.NewErrorRetryAfter(time.Until(timestamp))
+			}
+		}
+
+		fs.Debugf(nil, "Retrying API error %v", err)
+		return true, err
+	}
+
+	return fserrors.ShouldRetry(err) || fserrors.ShouldRetryHTTP(resp, retryErrorCodes), err
+}
+
+// ------------------------------------------------------------
+
+// Hash returns the MD5 of an object
+func (o *Object) Hash(ctx context.Context, ty hash.Type) (string, error) {
+	if ty != hash.MD5 {
+		return "", hash.ErrUnsupported
+	}
+	return o.md5sum, nil
+}
+
+// Return a string version
+func (o *Object) String() string {
+	if o == nil {
+		return "<nil>"
+	}
+	return o.remote
+}
+
+// Fs returns the parent Fs
+func (o *Object) Fs() fs.Info {
+	return o.fs
+}
+
+// Remote returns the remote path
+func (o *Object) Remote() string {
+	return o.remote
+}
+
+// ModTime returns the modification time of the object
+func (o *Object) ModTime(ctx context.Context) time.Time {
+	return o.modTime
+}
+
+// Size of object in bytes
+func (o *Object) Size() int64 {
+	return o.size
+}
+
+// Storable returns if this object is storable
+func (o *Object) Storable() bool {
+	return true
+}
+
+// SetModTime sets the modification time of the local fs object
+func (o *Object) SetModTime(ctx context.Context, modTime time.Time) error {
+	return fs.ErrorCantSetModTime
+}
+
+// Open an object for read
+func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.ReadCloser, err error) {
+	var resp *http.Response
+	opts := rest.Opts{
+		Method:  "GET",
+		RootURL: o.url,
+		Options: options,
+	}
+	var offset int64
+	var count int64
+	var key string
+	var value string
+	fs.FixRangeOption(options, o.size)
+	for _, option := range options {
+		switch x := option.(type) {
+		case *fs.RangeOption:
+			offset, count = x.Decode(o.size)
+			if count < 0 {
+				count = o.size - offset
+			}
+			key, value = option.Header()
+		case *fs.SeekOption:
+			offset = x.Offset
+			count = o.size - offset
+			key, value = option.Header()
+		default:
+			if option.Mandatory() {
+				fs.Logf(o, "Unsupported mandatory option: %v", option)
+			}
+		}
+	}
+	if key != "" && value != "" {
+		opts.ExtraHeaders = make(map[string]string)
+		opts.ExtraHeaders[key] = value
+	}
+	// Make sure that the asset is fully available
+	err = o.fs.pacer.Call(func() (bool, error) {
+		resp, err = o.fs.srv.Call(ctx, &opts)
+		if err == nil {
+			cl, clErr := strconv.Atoi(resp.Header.Get("content-length"))
+			if clErr == nil && count == int64(cl) {
+				return false, nil
+			}
+		}
+		return shouldRetry(ctx, resp, err)
+	})
+	if err != nil {
+		return nil, fmt.Errorf("failed download of \"%s\": %w", o.url, err)
+	}
+	return resp.Body, err
+}
+
+// Update the object with the contents of the io.Reader
+func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
+	options = append(options, &api.UpdateOptions{
+		PublicID:     o.publicID,
+		ResourceType: o.resourceType,
+		DeliveryType: o.deliveryType,
+		DisplayName:  api.CloudinaryEncoder.FromStandardName(o.fs, path.Base(o.Remote())),
+		AssetFolder:  o.fs.FromStandardFullPath(cldPathDir(o.Remote())),
+	})
+	updatedObj, err := o.fs.Put(ctx, in, src, options...)
+	if err != nil {
+		return err
+	}
+	if uo, ok := updatedObj.(*Object); ok {
+		o.size = uo.size
+		o.modTime = time.Now() // Skipping uo.modTime because the API returns the create time
+		o.url = uo.url
+		o.md5sum = uo.md5sum
+		o.publicID = uo.publicID
+		o.resourceType = uo.resourceType
+		o.deliveryType = uo.deliveryType
+	}
+	return nil
+}
+
+// Remove an object
+func (o *Object) Remove(ctx context.Context) error {
+	params := uploader.DestroyParams{
+		PublicID:     o.publicID,
+		ResourceType: o.resourceType,
+		Type:         o.deliveryType,
+	}
+	res, dErr := o.fs.cld.Upload.Destroy(ctx, params)
+	o.fs.lastCRUD = time.Now()
+	if dErr != nil {
+		return dErr
+	}
+
+	if res.Error.Message != "" {
+		return errors.New(res.Error.Message)
+	}
+
+	if res.Result != "ok" {
+		return errors.New(res.Result)
+	}
+
+	return nil
+}

backend/cloudinary/cloudinary_test.go

@@ -0,0 +1,23 @@
+// Test Cloudinary filesystem interface
+
+package cloudinary_test
+
+import (
+	"testing"
+
+	"github.com/rclone/rclone/backend/cloudinary"
+	"github.com/rclone/rclone/fstest/fstests"
+)
+
+// TestIntegration runs integration tests against the remote
+func TestIntegration(t *testing.T) {
+	name := "TestCloudinary"
+	fstests.Run(t, &fstests.Opt{
+		RemoteName:      name + ":",
+		NilObject:       (*cloudinary.Object)(nil),
+		SkipInvalidUTF8: true,
+		ExtraConfig: []fstests.ExtraConfigItem{
+			{Name: name, Key: "eventually_consistent_delay", Value: "7"},
+		},
+	})
+}

backend/combine/combine.go

@@ -20,6 +20,7 @@ import (
 	"github.com/rclone/rclone/fs/config/configmap"
 	"github.com/rclone/rclone/fs/config/configstruct"
 	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/fs/list"
 	"github.com/rclone/rclone/fs/operations"
 	"github.com/rclone/rclone/fs/walk"
 	"golang.org/x/sync/errgroup"
@@ -265,6 +266,9 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (outFs fs
 		}
 	}
 
+	// Enable ListP always
+	features.ListP = f.ListP
+
 	// Enable Purge when any upstreams support it
 	if features.Purge == nil {
 		for _, u := range f.upstreams {
@@ -809,24 +813,52 @@ func (u *upstream) wrapEntries(ctx context.Context, entries fs.DirEntries) (fs.D
 // This should return ErrDirNotFound if the directory isn't
 // found.
 func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error) {
+	return list.WithListP(ctx, dir, f)
+}
+
+// ListP lists the objects and directories of the Fs starting
+// from dir non recursively into out.
+//
+// dir should be "" to start from the root, and should not
+// have trailing slashes.
+//
+// This should return ErrDirNotFound if the directory isn't
+// found.
+//
+// It should call callback for each tranche of entries read.
+// These need not be returned in any particular order.  If
+// callback returns an error then the listing will stop
+// immediately.
+func (f *Fs) ListP(ctx context.Context, dir string, callback fs.ListRCallback) error {
 	// defer log.Trace(f, "dir=%q", dir)("entries = %v, err=%v", &entries, &err)
 	if f.root == "" && dir == "" {
-		entries = make(fs.DirEntries, 0, len(f.upstreams))
+		entries := make(fs.DirEntries, 0, len(f.upstreams))
 		for combineDir := range f.upstreams {
 			d := fs.NewLimitedDirWrapper(combineDir, fs.NewDir(combineDir, f.when))
 			entries = append(entries, d)
 		}
-		return entries, nil
+		return callback(entries)
 	}
 	u, uRemote, err := f.findUpstream(dir)
 	if err != nil {
-		return nil, err
+		return err
 	}
-	entries, err = u.f.List(ctx, uRemote)
-	if err != nil {
-		return nil, err
+	wrappedCallback := func(entries fs.DirEntries) error {
+		entries, err := u.wrapEntries(ctx, entries)
+		if err != nil {
+			return err
+		}
+		return callback(entries)
 	}
-	return u.wrapEntries(ctx, entries)
+	listP := u.f.Features().ListP
+	if listP == nil {
+		entries, err := u.f.List(ctx, uRemote)
+		if err != nil {
+			return err
+		}
+		return wrappedCallback(entries)
+	}
+	return listP(ctx, uRemote, wrappedCallback)
 }
 
 // ListR lists the objects and directories of the Fs starting

backend/compress/compress.go

@@ -29,6 +29,7 @@ import (
 	"github.com/rclone/rclone/fs/config/configstruct"
 	"github.com/rclone/rclone/fs/fspath"
 	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/fs/list"
 	"github.com/rclone/rclone/fs/log"
 	"github.com/rclone/rclone/fs/object"
 	"github.com/rclone/rclone/fs/operations"
@@ -38,6 +39,7 @@ import (
 const (
 	initialChunkSize = 262144  // Initial and max sizes of chunks when reading parts of the file. Currently
 	maxChunkSize     = 8388608 // at 256 KiB and 8 MiB.
+	chunkStreams     = 0       // Streams to use for reading
 
 	bufferSize          = 8388608
 	heuristicBytes      = 1048576
@@ -207,6 +209,8 @@ func NewFs(ctx context.Context, name, rpath string, m configmap.Mapper) (fs.Fs,
 	if !operations.CanServerSideMove(wrappedFs) {
 		f.features.Disable("PutStream")
 	}
+	// Enable ListP always
+	f.features.ListP = f.ListP
 
 	return f, err
 }
@@ -351,11 +355,39 @@ func (f *Fs) processEntries(entries fs.DirEntries) (newEntries fs.DirEntries, er
 // found.
 // List entries and process them
 func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error) {
-	entries, err = f.Fs.List(ctx, dir)
-	if err != nil {
-		return nil, err
+	return list.WithListP(ctx, dir, f)
+}
+
+// ListP lists the objects and directories of the Fs starting
+// from dir non recursively into out.
+//
+// dir should be "" to start from the root, and should not
+// have trailing slashes.
+//
+// This should return ErrDirNotFound if the directory isn't
+// found.
+//
+// It should call callback for each tranche of entries read.
+// These need not be returned in any particular order.  If
+// callback returns an error then the listing will stop
+// immediately.
+func (f *Fs) ListP(ctx context.Context, dir string, callback fs.ListRCallback) error {
+	wrappedCallback := func(entries fs.DirEntries) error {
+		entries, err := f.processEntries(entries)
+		if err != nil {
+			return err
+		}
+		return callback(entries)
 	}
-	return f.processEntries(entries)
+	listP := f.Fs.Features().ListP
+	if listP == nil {
+		entries, err := f.Fs.List(ctx, dir)
+		if err != nil {
+			return err
+		}
+		return wrappedCallback(entries)
+	}
+	return listP(ctx, dir, wrappedCallback)
 }
 
 // ListR lists the objects and directories of the Fs starting
@@ -1362,7 +1394,7 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (rc io.Read
 		}
 	}
 	// Get a chunkedreader for the wrapped object
-	chunkedReader := chunkedreader.New(ctx, o.Object, initialChunkSize, maxChunkSize)
+	chunkedReader := chunkedreader.New(ctx, o.Object, initialChunkSize, maxChunkSize, chunkStreams)
 	// Get file handle
 	var file io.Reader
 	if offset != 0 {

backend/crypt/cipher.go

@@ -192,7 +192,7 @@ func newCipher(mode NameEncryptionMode, password, salt string, dirNameEncrypt bo
 		dirNameEncrypt:  dirNameEncrypt,
 		encryptedSuffix: ".bin",
 	}
-	c.buffers.New = func() interface{} {
+	c.buffers.New = func() any {
 		return new([blockSize]byte)
 	}
 	err := c.Key(password, salt)
@@ -329,14 +329,14 @@ func (c *Cipher) obfuscateSegment(plaintext string) string {
 	for _, runeValue := range plaintext {
 		dir += int(runeValue)
 	}
-	dir = dir % 256
+	dir %= 256
 
 	// We'll use this number to store in the result filename...
 	var result bytes.Buffer
 	_, _ = result.WriteString(strconv.Itoa(dir) + ".")
 
 	// but we'll augment it with the nameKey for real calculation
-	for i := 0; i < len(c.nameKey); i++ {
+	for i := range len(c.nameKey) {
 		dir += int(c.nameKey[i])
 	}
 
@@ -418,7 +418,7 @@ func (c *Cipher) deobfuscateSegment(ciphertext string) (string, error) {
 	}
 
 	// add the nameKey to get the real rotate distance
-	for i := 0; i < len(c.nameKey); i++ {
+	for i := range len(c.nameKey) {
 		dir += int(c.nameKey[i])
 	}
 
@@ -450,7 +450,7 @@ func (c *Cipher) deobfuscateSegment(ciphertext string) (string, error) {
 			if pos >= 26 {
 				pos -= 6
 			}
-			pos = pos - thisdir
+			pos -= thisdir
 			if pos < 0 {
 				pos += 52
 			}
@@ -664,7 +664,7 @@ func (n *nonce) increment() {
 // add a uint64 to the nonce
 func (n *nonce) add(x uint64) {
 	carry := uint16(0)
-	for i := 0; i < 8; i++ {
+	for i := range 8 {
 		digit := (*n)[i]
 		xDigit := byte(x)
 		x >>= 8
@@ -888,7 +888,7 @@ func (fh *decrypter) fillBuffer() (err error) {
 		fs.Errorf(nil, "crypt: ignoring: %v", ErrorEncryptedBadBlock)
 		// Zero out the bad block and continue
 		for i := range (*fh.buf)[:n] {
-			(*fh.buf)[i] = 0
+			fh.buf[i] = 0
 		}
 	}
 	fh.bufIndex = 0

backend/crypt/cipher_test.go

@@ -1307,10 +1307,7 @@ func TestNewDecrypterSeekLimit(t *testing.T) {
 	open := func(ctx context.Context, underlyingOffset, underlyingLimit int64) (io.ReadCloser, error) {
 		end := len(ciphertext)
 		if underlyingLimit >= 0 {
-			end = int(underlyingOffset + underlyingLimit)
-			if end > len(ciphertext) {
-				end = len(ciphertext)
-			}
+			end = min(int(underlyingOffset+underlyingLimit), len(ciphertext))
 		}
 		reader = io.NopCloser(bytes.NewBuffer(ciphertext[int(underlyingOffset):end]))
 		return reader, nil
@@ -1490,7 +1487,7 @@ func TestDecrypterRead(t *testing.T) {
 	assert.NoError(t, err)
 
 	// Test truncating the file at each possible point
-	for i := 0; i < len(file16)-1; i++ {
+	for i := range len(file16) - 1 {
 		what := fmt.Sprintf("truncating to %d/%d", i, len(file16))
 		cd := newCloseDetector(bytes.NewBuffer(file16[:i]))
 		fh, err := c.newDecrypter(cd)

backend/crypt/crypt.go

@@ -18,6 +18,7 @@ import (
 	"github.com/rclone/rclone/fs/config/obscure"
 	"github.com/rclone/rclone/fs/fspath"
 	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/fs/list"
 )
 
 // Globals
@@ -293,6 +294,9 @@ func NewFs(ctx context.Context, name, rpath string, m configmap.Mapper) (fs.Fs,
 		PartialUploads:           true,
 	}).Fill(ctx, f).Mask(ctx, wrappedFs).WrapsFs(f, wrappedFs)
 
+	// Enable ListP always
+	f.features.ListP = f.ListP
+
 	return f, err
 }
 
@@ -416,11 +420,40 @@ func (f *Fs) encryptEntries(ctx context.Context, entries fs.DirEntries) (newEntr
 // This should return ErrDirNotFound if the directory isn't
 // found.
 func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error) {
-	entries, err = f.Fs.List(ctx, f.cipher.EncryptDirName(dir))
-	if err != nil {
-		return nil, err
+	return list.WithListP(ctx, dir, f)
+}
+
+// ListP lists the objects and directories of the Fs starting
+// from dir non recursively into out.
+//
+// dir should be "" to start from the root, and should not
+// have trailing slashes.
+//
+// This should return ErrDirNotFound if the directory isn't
+// found.
+//
+// It should call callback for each tranche of entries read.
+// These need not be returned in any particular order.  If
+// callback returns an error then the listing will stop
+// immediately.
+func (f *Fs) ListP(ctx context.Context, dir string, callback fs.ListRCallback) error {
+	wrappedCallback := func(entries fs.DirEntries) error {
+		entries, err := f.encryptEntries(ctx, entries)
+		if err != nil {
+			return err
+		}
+		return callback(entries)
 	}
-	return f.encryptEntries(ctx, entries)
+	listP := f.Fs.Features().ListP
+	encryptedDir := f.cipher.EncryptDirName(dir)
+	if listP == nil {
+		entries, err := f.Fs.List(ctx, encryptedDir)
+		if err != nil {
+			return err
+		}
+		return wrappedCallback(entries)
+	}
+	return listP(ctx, encryptedDir, wrappedCallback)
 }
 
 // ListR lists the objects and directories of the Fs starting
@@ -924,7 +957,7 @@ Usage Example:
 // The result should be capable of being JSON encoded
 // If it is a string or a []string it will be shown to the user
 // otherwise it will be JSON encoded and shown to the user like that
-func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (out interface{}, err error) {
+func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (out any, err error) {
 	switch name {
 	case "decode":
 		out := make([]string, 0, len(arg))

backend/crypt/pkcs7/pkcs7.go

@@ -25,7 +25,7 @@ func Pad(n int, buf []byte) []byte {
 	}
 	length := len(buf)
 	padding := n - (length % n)
-	for i := 0; i < padding; i++ {
+	for range padding {
 		buf = append(buf, byte(padding))
 	}
 	if (len(buf) % n) != 0 {
@@ -54,7 +54,7 @@ func Unpad(n int, buf []byte) ([]byte, error) {
 	if padding == 0 {
 		return nil, ErrorPaddingTooShort
 	}
-	for i := 0; i < padding; i++ {
+	for i := range padding {
 		if buf[length-1-i] != byte(padding) {
 			return nil, ErrorPaddingNotAllTheSame
 		}

backend/doi/api/dataversetypes.go

@@ -0,0 +1,38 @@
+// Type definitions specific to Dataverse
+
+package api
+
+// DataverseDatasetResponse is returned by the Dataverse dataset API
+type DataverseDatasetResponse struct {
+	Status string           `json:"status"`
+	Data   DataverseDataset `json:"data"`
+}
+
+// DataverseDataset is the representation of a dataset
+type DataverseDataset struct {
+	LatestVersion DataverseDatasetVersion `json:"latestVersion"`
+}
+
+// DataverseDatasetVersion is the representation of a dataset version
+type DataverseDatasetVersion struct {
+	LastUpdateTime string          `json:"lastUpdateTime"`
+	Files          []DataverseFile `json:"files"`
+}
+
+// DataverseFile is the representation of a file found in a dataset
+type DataverseFile struct {
+	DirectoryLabel string            `json:"directoryLabel"`
+	DataFile       DataverseDataFile `json:"dataFile"`
+}
+
+// DataverseDataFile represents file metadata details
+type DataverseDataFile struct {
+	ID                 int64  `json:"id"`
+	Filename           string `json:"filename"`
+	ContentType        string `json:"contentType"`
+	FileSize           int64  `json:"filesize"`
+	OriginalFileFormat string `json:"originalFileFormat"`
+	OriginalFileSize   int64  `json:"originalFileSize"`
+	OriginalFileName   string `json:"originalFileName"`
+	MD5                string `json:"md5"`
+}

backend/doi/api/inveniotypes.go

@@ -0,0 +1,33 @@
+// Type definitions specific to InvenioRDM
+
+package api
+
+// InvenioRecordResponse is the representation of a record stored in InvenioRDM
+type InvenioRecordResponse struct {
+	Links InvenioRecordResponseLinks `json:"links"`
+}
+
+// InvenioRecordResponseLinks represents a record's links
+type InvenioRecordResponseLinks struct {
+	Self string `json:"self"`
+}
+
+// InvenioFilesResponse is the representation of a record's files
+type InvenioFilesResponse struct {
+	Entries []InvenioFilesResponseEntry `json:"entries"`
+}
+
+// InvenioFilesResponseEntry is the representation of a file entry
+type InvenioFilesResponseEntry struct {
+	Key      string                         `json:"key"`
+	Checksum string                         `json:"checksum"`
+	Size     int64                          `json:"size"`
+	Updated  string                         `json:"updated"`
+	MimeType string                         `json:"mimetype"`
+	Links    InvenioFilesResponseEntryLinks `json:"links"`
+}
+
+// InvenioFilesResponseEntryLinks represents file links details
+type InvenioFilesResponseEntryLinks struct {
+	Content string `json:"content"`
+}

backend/doi/api/types.go

@@ -0,0 +1,26 @@
+// Package api has general type definitions for doi
+package api
+
+// DoiResolverResponse is returned by the DOI resolver API
+//
+// Reference: https://www.doi.org/the-identifier/resources/factsheets/doi-resolution-documentation
+type DoiResolverResponse struct {
+	ResponseCode int                        `json:"responseCode"`
+	Handle       string                     `json:"handle"`
+	Values       []DoiResolverResponseValue `json:"values"`
+}
+
+// DoiResolverResponseValue is a single handle record value
+type DoiResolverResponseValue struct {
+	Index     int                          `json:"index"`
+	Type      string                       `json:"type"`
+	Data      DoiResolverResponseValueData `json:"data"`
+	TTL       int                          `json:"ttl"`
+	Timestamp string                       `json:"timestamp"`
+}
+
+// DoiResolverResponseValueData is the data held in a handle value
+type DoiResolverResponseValueData struct {
+	Format string `json:"format"`
+	Value  any    `json:"value"`
+}

backend/doi/dataverse.go

@@ -0,0 +1,112 @@
+// Implementation for Dataverse
+
+package doi
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"net/url"
+	"path"
+	"strings"
+	"time"
+
+	"github.com/rclone/rclone/backend/doi/api"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/lib/rest"
+)
+
+// Returns true if resolvedURL is likely a DOI hosted on a Dataverse intallation
+func activateDataverse(resolvedURL *url.URL) (isActive bool) {
+	queryValues := resolvedURL.Query()
+	persistentID := queryValues.Get("persistentId")
+	return persistentID != ""
+}
+
+// Resolve the main API endpoint for a DOI hosted on a Dataverse installation
+func resolveDataverseEndpoint(resolvedURL *url.URL) (provider Provider, endpoint *url.URL, err error) {
+	queryValues := resolvedURL.Query()
+	persistentID := queryValues.Get("persistentId")
+
+	query := url.Values{}
+	query.Add("persistentId", persistentID)
+	endpointURL := resolvedURL.ResolveReference(&url.URL{Path: "/api/datasets/:persistentId/", RawQuery: query.Encode()})
+
+	return Dataverse, endpointURL, nil
+}
+
+// dataverseProvider implements the doiProvider interface for Dataverse installations
+type dataverseProvider struct {
+	f *Fs
+}
+
+// ListEntries returns the full list of entries found at the remote, regardless of root
+func (dp *dataverseProvider) ListEntries(ctx context.Context) (entries []*Object, err error) {
+	// Use the cache if populated
+	cachedEntries, found := dp.f.cache.GetMaybe("files")
+	if found {
+		parsedEntries, ok := cachedEntries.([]Object)
+		if ok {
+			for _, entry := range parsedEntries {
+				newEntry := entry
+				entries = append(entries, &newEntry)
+			}
+			return entries, nil
+		}
+	}
+
+	filesURL := dp.f.endpoint
+	var res *http.Response
+	var result api.DataverseDatasetResponse
+	opts := rest.Opts{
+		Method:     "GET",
+		Path:       strings.TrimLeft(filesURL.EscapedPath(), "/"),
+		Parameters: filesURL.Query(),
+	}
+	err = dp.f.pacer.Call(func() (bool, error) {
+		res, err = dp.f.srv.CallJSON(ctx, &opts, nil, &result)
+		return shouldRetry(ctx, res, err)
+	})
+	if err != nil {
+		return nil, fmt.Errorf("readDir failed: %w", err)
+	}
+	modTime, modTimeErr := time.Parse(time.RFC3339, result.Data.LatestVersion.LastUpdateTime)
+	if modTimeErr != nil {
+		fs.Logf(dp.f, "error: could not parse last update time %v", modTimeErr)
+		modTime = timeUnset
+	}
+	for _, file := range result.Data.LatestVersion.Files {
+		contentURLPath := fmt.Sprintf("/api/access/datafile/%d", file.DataFile.ID)
+		query := url.Values{}
+		query.Add("format", "original")
+		contentURL := dp.f.endpoint.ResolveReference(&url.URL{Path: contentURLPath, RawQuery: query.Encode()})
+		entry := &Object{
+			fs:          dp.f,
+			remote:      path.Join(file.DirectoryLabel, file.DataFile.Filename),
+			contentURL:  contentURL.String(),
+			size:        file.DataFile.FileSize,
+			modTime:     modTime,
+			md5:         file.DataFile.MD5,
+			contentType: file.DataFile.ContentType,
+		}
+		if file.DataFile.OriginalFileName != "" {
+			entry.remote = path.Join(file.DirectoryLabel, file.DataFile.OriginalFileName)
+			entry.size = file.DataFile.OriginalFileSize
+			entry.contentType = file.DataFile.OriginalFileFormat
+		}
+		entries = append(entries, entry)
+	}
+	// Populate the cache
+	cacheEntries := []Object{}
+	for _, entry := range entries {
+		cacheEntries = append(cacheEntries, *entry)
+	}
+	dp.f.cache.Put("files", cacheEntries)
+	return entries, nil
+}
+
+func newDataverseProvider(f *Fs) doiProvider {
+	return &dataverseProvider{
+		f: f,
+	}
+}

backend/doi/doi.go

@@ -0,0 +1,649 @@
+// Package doi provides a filesystem interface for digital objects identified by DOIs.
+//
+// See: https://www.doi.org/the-identifier/what-is-a-doi/
+package doi
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"path"
+	"strings"
+	"time"
+
+	"github.com/rclone/rclone/backend/doi/api"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/config/configmap"
+	"github.com/rclone/rclone/fs/config/configstruct"
+	"github.com/rclone/rclone/fs/fserrors"
+	"github.com/rclone/rclone/fs/fshttp"
+	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/lib/cache"
+	"github.com/rclone/rclone/lib/pacer"
+	"github.com/rclone/rclone/lib/rest"
+)
+
+const (
+	// the URL of the DOI resolver
+	//
+	// Reference: https://www.doi.org/the-identifier/resources/factsheets/doi-resolution-documentation
+	doiResolverAPIURL = "https://doi.org/api"
+	minSleep          = 10 * time.Millisecond
+	maxSleep          = 2 * time.Second
+	decayConstant     = 2 // bigger for slower decay, exponential
+)
+
+var (
+	errorReadOnly = errors.New("doi remotes are read only")
+	timeUnset     = time.Unix(0, 0)
+)
+
+func init() {
+	fsi := &fs.RegInfo{
+		Name:        "doi",
+		Description: "DOI datasets",
+		NewFs:       NewFs,
+		CommandHelp: commandHelp,
+		Options: []fs.Option{{
+			Name:     "doi",
+			Help:     "The DOI or the doi.org URL.",
+			Required: true,
+		}, {
+			Name: fs.ConfigProvider,
+			Help: `DOI provider.
+
+The DOI provider can be set when rclone does not automatically recognize a supported DOI provider.`,
+			Examples: []fs.OptionExample{
+				{
+					Value: "auto",
+					Help:  "Auto-detect provider",
+				},
+				{
+					Value: string(Zenodo),
+					Help:  "Zenodo",
+				}, {
+					Value: string(Dataverse),
+					Help:  "Dataverse",
+				}, {
+					Value: string(Invenio),
+					Help:  "Invenio",
+				}},
+			Required: false,
+			Advanced: true,
+		}, {
+			Name: "doi_resolver_api_url",
+			Help: `The URL of the DOI resolver API to use.
+
+The DOI resolver can be set for testing or for cases when the the canonical DOI resolver API cannot be used.
+
+Defaults to "https://doi.org/api".`,
+			Required: false,
+			Advanced: true,
+		}},
+	}
+	fs.Register(fsi)
+}
+
+// Provider defines the type of provider hosting the DOI
+type Provider string
+
+const (
+	// Zenodo provider, see https://zenodo.org
+	Zenodo Provider = "zenodo"
+	// Dataverse provider, see https://dataverse.harvard.edu
+	Dataverse Provider = "dataverse"
+	// Invenio provider, see https://inveniordm.docs.cern.ch
+	Invenio Provider = "invenio"
+)
+
+// Options defines the configuration for this backend
+type Options struct {
+	Doi               string `config:"doi"`                  // The DOI, a digital identifier of an object, usually a dataset
+	Provider          string `config:"provider"`             // The DOI provider
+	DoiResolverAPIURL string `config:"doi_resolver_api_url"` // The URL of the DOI resolver API to use.
+}
+
+// Fs stores the interface to the remote HTTP files
+type Fs struct {
+	name        string         // name of this remote
+	root        string         // the path we are working on
+	provider    Provider       // the DOI provider
+	doiProvider doiProvider    // the interface used to interact with the DOI provider
+	features    *fs.Features   // optional features
+	opt         Options        // options for this backend
+	ci          *fs.ConfigInfo // global config
+	endpoint    *url.URL       // the main API endpoint for this remote
+	endpointURL string         // endpoint as a string
+	srv         *rest.Client   // the connection to the server
+	pacer       *fs.Pacer      // pacer for API calls
+	cache       *cache.Cache   // a cache for the remote metadata
+}
+
+// Object is a remote object that has been stat'd (so it exists, but is not necessarily open for reading)
+type Object struct {
+	fs          *Fs       // what this object is part of
+	remote      string    // the remote path
+	contentURL  string    // the URL where the contents of the file can be downloaded
+	size        int64     // size of the object
+	modTime     time.Time // modification time of the object
+	contentType string    // content type of the object
+	md5         string    // MD5 hash of the object content
+}
+
+// doiProvider is the interface used to list objects in a DOI
+type doiProvider interface {
+	// ListEntries returns the full list of entries found at the remote, regardless of root
+	ListEntries(ctx context.Context) (entries []*Object, err error)
+}
+
+// Parse the input string as a DOI
+// Examples:
+// 10.1000/182 -> 10.1000/182
+// https://doi.org/10.1000/182 -> 10.1000/182
+// doi:10.1000/182 -> 10.1000/182
+func parseDoi(doi string) string {
+	doiURL, err := url.Parse(doi)
+	if err != nil {
+		return doi
+	}
+	if doiURL.Scheme == "doi" {
+		return strings.TrimLeft(strings.TrimPrefix(doi, "doi:"), "/")
+	}
+	if strings.HasSuffix(doiURL.Hostname(), "doi.org") {
+		return strings.TrimLeft(doiURL.Path, "/")
+	}
+	return doi
+}
+
+// Resolve a DOI to a URL
+// Reference: https://www.doi.org/the-identifier/resources/factsheets/doi-resolution-documentation
+func resolveDoiURL(ctx context.Context, srv *rest.Client, pacer *fs.Pacer, opt *Options) (doiURL *url.URL, err error) {
+	resolverURL := opt.DoiResolverAPIURL
+	if resolverURL == "" {
+		resolverURL = doiResolverAPIURL
+	}
+
+	var result api.DoiResolverResponse
+	params := url.Values{}
+	params.Add("index", "1")
+	opts := rest.Opts{
+		Method:     "GET",
+		RootURL:    resolverURL,
+		Path:       "/handles/" + opt.Doi,
+		Parameters: params,
+	}
+	err = pacer.Call(func() (bool, error) {
+		res, err := srv.CallJSON(ctx, &opts, nil, &result)
+		return shouldRetry(ctx, res, err)
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	if result.ResponseCode != 1 {
+		return nil, fmt.Errorf("could not resolve DOI (error code %d)", result.ResponseCode)
+	}
+	resolvedURLStr := ""
+	for _, value := range result.Values {
+		if value.Type == "URL" && value.Data.Format == "string" {
+			valueStr, ok := value.Data.Value.(string)
+			if !ok {
+				return nil, fmt.Errorf("could not resolve DOI (incorrect response format)")
+			}
+			resolvedURLStr = valueStr
+		}
+	}
+	resolvedURL, err := url.Parse(resolvedURLStr)
+	if err != nil {
+		return nil, err
+	}
+	return resolvedURL, nil
+}
+
+// Resolve the passed configuration into a provider and enpoint
+func resolveEndpoint(ctx context.Context, srv *rest.Client, pacer *fs.Pacer, opt *Options) (provider Provider, endpoint *url.URL, err error) {
+	resolvedURL, err := resolveDoiURL(ctx, srv, pacer, opt)
+	if err != nil {
+		return "", nil, err
+	}
+
+	switch opt.Provider {
+	case string(Dataverse):
+		return resolveDataverseEndpoint(resolvedURL)
+	case string(Invenio):
+		return resolveInvenioEndpoint(ctx, srv, pacer, resolvedURL)
+	case string(Zenodo):
+		return resolveZenodoEndpoint(ctx, srv, pacer, resolvedURL, opt.Doi)
+	}
+
+	hostname := strings.ToLower(resolvedURL.Hostname())
+	if hostname == "dataverse.harvard.edu" || activateDataverse(resolvedURL) {
+		return resolveDataverseEndpoint(resolvedURL)
+	}
+	if hostname == "zenodo.org" || strings.HasSuffix(hostname, ".zenodo.org") {
+		return resolveZenodoEndpoint(ctx, srv, pacer, resolvedURL, opt.Doi)
+	}
+	if activateInvenio(ctx, srv, pacer, resolvedURL) {
+		return resolveInvenioEndpoint(ctx, srv, pacer, resolvedURL)
+	}
+
+	return "", nil, fmt.Errorf("provider '%s' is not supported", resolvedURL.Hostname())
+}
+
+// Make the http connection from the passed options
+func (f *Fs) httpConnection(ctx context.Context, opt *Options) (isFile bool, err error) {
+	provider, endpoint, err := resolveEndpoint(ctx, f.srv, f.pacer, opt)
+	if err != nil {
+		return false, err
+	}
+
+	// Update f with the new parameters
+	f.srv.SetRoot(endpoint.ResolveReference(&url.URL{Path: "/"}).String())
+	f.endpoint = endpoint
+	f.endpointURL = endpoint.String()
+	f.provider = provider
+	f.opt.Provider = string(provider)
+
+	switch f.provider {
+	case Dataverse:
+		f.doiProvider = newDataverseProvider(f)
+	case Invenio, Zenodo:
+		f.doiProvider = newInvenioProvider(f)
+	default:
+		return false, fmt.Errorf("provider type '%s' not supported", f.provider)
+	}
+
+	// Determine if the root is a file
+	entries, err := f.doiProvider.ListEntries(ctx)
+	if err != nil {
+		return false, err
+	}
+	for _, entry := range entries {
+		if entry.remote == f.root {
+			isFile = true
+			break
+		}
+	}
+	return isFile, nil
+}
+
+// retryErrorCodes is a slice of error codes that we will retry
+var retryErrorCodes = []int{
+	429, // Too Many Requests.
+	500, // Internal Server Error
+	502, // Bad Gateway
+	503, // Service Unavailable
+	504, // Gateway Timeout
+	509, // Bandwidth Limit Exceeded
+}
+
+// shouldRetry returns a boolean as to whether this res and err
+// deserve to be retried. It returns the err as a convenience.
+func shouldRetry(ctx context.Context, res *http.Response, err error) (bool, error) {
+	if fserrors.ContextError(ctx, &err) {
+		return false, err
+	}
+	return fserrors.ShouldRetry(err) || fserrors.ShouldRetryHTTP(res, retryErrorCodes), err
+}
+
+// NewFs creates a new Fs object from the name and root. It connects to
+// the host specified in the config file.
+func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, error) {
+	root = strings.Trim(root, "/")
+
+	// Parse config into Options struct
+	opt := new(Options)
+	err := configstruct.Set(m, opt)
+	if err != nil {
+		return nil, err
+	}
+	opt.Doi = parseDoi(opt.Doi)
+
+	client := fshttp.NewClient(ctx)
+	ci := fs.GetConfig(ctx)
+	f := &Fs{
+		name:  name,
+		root:  root,
+		opt:   *opt,
+		ci:    ci,
+		srv:   rest.NewClient(client),
+		pacer: fs.NewPacer(ctx, pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
+		cache: cache.New(),
+	}
+	f.features = (&fs.Features{
+		CanHaveEmptyDirectories: true,
+	}).Fill(ctx, f)
+
+	isFile, err := f.httpConnection(ctx, opt)
+	if err != nil {
+		return nil, err
+	}
+
+	if isFile {
+		// return an error with an fs which points to the parent
+		newRoot := path.Dir(f.root)
+		if newRoot == "." {
+			newRoot = ""
+		}
+		f.root = newRoot
+		return f, fs.ErrorIsFile
+	}
+
+	return f, nil
+}
+
+// Name returns the configured name of the file system
+func (f *Fs) Name() string {
+	return f.name
+}
+
+// Root returns the root for the filesystem
+func (f *Fs) Root() string {
+	return f.root
+}
+
+// String returns the URL for the filesystem
+func (f *Fs) String() string {
+	return fmt.Sprintf("DOI %s", f.opt.Doi)
+}
+
+// Features returns the optional features of this Fs
+func (f *Fs) Features() *fs.Features {
+	return f.features
+}
+
+// Precision is the remote http file system's modtime precision, which we have no way of knowing. We estimate at 1s
+func (f *Fs) Precision() time.Duration {
+	return time.Second
+}
+
+// Hashes returns hash.HashNone to indicate remote hashing is unavailable
+func (f *Fs) Hashes() hash.Set {
+	return hash.Set(hash.MD5)
+	// return hash.Set(hash.None)
+}
+
+// Mkdir makes the root directory of the Fs object
+func (f *Fs) Mkdir(ctx context.Context, dir string) error {
+	return errorReadOnly
+}
+
+// Remove a remote http file object
+func (o *Object) Remove(ctx context.Context) error {
+	return errorReadOnly
+}
+
+// Rmdir removes the root directory of the Fs object
+func (f *Fs) Rmdir(ctx context.Context, dir string) error {
+	return errorReadOnly
+}
+
+// NewObject creates a new remote http file object
+func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error) {
+	entries, err := f.doiProvider.ListEntries(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	remoteFullPath := remote
+	if f.root != "" {
+		remoteFullPath = path.Join(f.root, remote)
+	}
+
+	for _, entry := range entries {
+		if entry.Remote() == remoteFullPath {
+			return entry, nil
+		}
+	}
+
+	return nil, fs.ErrorObjectNotFound
+}
+
+// List the objects and directories in dir into entries.  The
+// entries can be returned in any order but should be for a
+// complete directory.
+//
+// dir should be "" to list the root, and should not have
+// trailing slashes.
+//
+// This should return ErrDirNotFound if the directory isn't
+// found.
+func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error) {
+	fileEntries, err := f.doiProvider.ListEntries(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("error listing %q: %w", dir, err)
+	}
+
+	fullDir := path.Join(f.root, dir)
+	if fullDir != "" {
+		fullDir += "/"
+	}
+
+	dirPaths := map[string]bool{}
+	for _, entry := range fileEntries {
+		// First, filter out files not in `fullDir`
+		if !strings.HasPrefix(entry.remote, fullDir) {
+			continue
+		}
+		// Then, find entries in subfolers
+		remotePath := entry.remote
+		if fullDir != "" {
+			remotePath = strings.TrimLeft(strings.TrimPrefix(remotePath, fullDir), "/")
+		}
+		parts := strings.SplitN(remotePath, "/", 2)
+		if len(parts) == 1 {
+			newEntry := *entry
+			newEntry.remote = path.Join(dir, remotePath)
+			entries = append(entries, &newEntry)
+		} else {
+			dirPaths[path.Join(dir, parts[0])] = true
+		}
+	}
+
+	for dirPath := range dirPaths {
+		entry := fs.NewDir(dirPath, time.Time{})
+		entries = append(entries, entry)
+	}
+
+	return entries, nil
+}
+
+// Put in to the remote path with the modTime given of the given size
+//
+// May create the object even if it returns an error - if so
+// will return the object and the error, otherwise will return
+// nil and the error
+func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
+	return nil, errorReadOnly
+}
+
+// PutStream uploads to the remote path with the modTime given of indeterminate size
+func (f *Fs) PutStream(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
+	return nil, errorReadOnly
+}
+
+// Fs is the filesystem this remote http file object is located within
+func (o *Object) Fs() fs.Info {
+	return o.fs
+}
+
+// String returns the URL to the remote HTTP file
+func (o *Object) String() string {
+	if o == nil {
+		return "<nil>"
+	}
+	return o.remote
+}
+
+// Remote the name of the remote HTTP file, relative to the fs root
+func (o *Object) Remote() string {
+	return o.remote
+}
+
+// Hash returns "" since HTTP (in Go or OpenSSH) doesn't support remote calculation of hashes
+func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error) {
+	if t != hash.MD5 {
+		return "", hash.ErrUnsupported
+	}
+	return o.md5, nil
+}
+
+// Size returns the size in bytes of the remote http file
+func (o *Object) Size() int64 {
+	return o.size
+}
+
+// ModTime returns the modification time of the remote http file
+func (o *Object) ModTime(ctx context.Context) time.Time {
+	return o.modTime
+}
+
+// SetModTime sets the modification and access time to the specified time
+//
+// it also updates the info field
+func (o *Object) SetModTime(ctx context.Context, modTime time.Time) error {
+	return errorReadOnly
+}
+
+// Storable returns whether the remote http file is a regular file (not a directory, symbolic link, block device, character device, named pipe, etc.)
+func (o *Object) Storable() bool {
+	return true
+}
+
+// Open a remote http file object for reading. Seek is supported
+func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.ReadCloser, err error) {
+	fs.FixRangeOption(options, o.size)
+	opts := rest.Opts{
+		Method:  "GET",
+		RootURL: o.contentURL,
+		Options: options,
+	}
+	var res *http.Response
+	err = o.fs.pacer.Call(func() (bool, error) {
+		res, err = o.fs.srv.Call(ctx, &opts)
+		return shouldRetry(ctx, res, err)
+	})
+	if err != nil {
+		return nil, fmt.Errorf("Open failed: %w", err)
+	}
+
+	// Handle non-compliant redirects
+	if res.Header.Get("Location") != "" {
+		newURL, err := res.Location()
+		if err == nil {
+			opts.RootURL = newURL.String()
+			err = o.fs.pacer.Call(func() (bool, error) {
+				res, err = o.fs.srv.Call(ctx, &opts)
+				return shouldRetry(ctx, res, err)
+			})
+			if err != nil {
+				return nil, fmt.Errorf("Open failed: %w", err)
+			}
+		}
+	}
+
+	return res.Body, nil
+}
+
+// Update in to the object with the modTime given of the given size
+func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
+	return errorReadOnly
+}
+
+// MimeType of an Object if known, "" otherwise
+func (o *Object) MimeType(ctx context.Context) string {
+	return o.contentType
+}
+
+var commandHelp = []fs.CommandHelp{{
+	Name:  "metadata",
+	Short: "Show metadata about the DOI.",
+	Long: `This command returns a JSON object with some information about the DOI.
+
+    rclone backend medatadata doi: 
+
+It returns a JSON object representing metadata about the DOI.
+`,
+}, {
+	Name:  "set",
+	Short: "Set command for updating the config parameters.",
+	Long: `This set command can be used to update the config parameters
+for a running doi backend.
+
+Usage Examples:
+
+    rclone backend set doi: [-o opt_name=opt_value] [-o opt_name2=opt_value2]
+    rclone rc backend/command command=set fs=doi: [-o opt_name=opt_value] [-o opt_name2=opt_value2]
+    rclone rc backend/command command=set fs=doi: -o doi=NEW_DOI
+
+The option keys are named as they are in the config file.
+
+This rebuilds the connection to the doi backend when it is called with
+the new parameters. Only new parameters need be passed as the values
+will default to those currently in use.
+
+It doesn't return anything.
+`,
+}}
+
+// Command the backend to run a named command
+//
+// The command run is name
+// args may be used to read arguments from
+// opts may be used to read optional arguments from
+//
+// The result should be capable of being JSON encoded
+// If it is a string or a []string it will be shown to the user
+// otherwise it will be JSON encoded and shown to the user like that
+func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (out interface{}, err error) {
+	switch name {
+	case "metadata":
+		return f.ShowMetadata(ctx)
+	case "set":
+		newOpt := f.opt
+		err := configstruct.Set(configmap.Simple(opt), &newOpt)
+		if err != nil {
+			return nil, fmt.Errorf("reading config: %w", err)
+		}
+		_, err = f.httpConnection(ctx, &newOpt)
+		if err != nil {
+			return nil, fmt.Errorf("updating session: %w", err)
+		}
+		f.opt = newOpt
+		keys := []string{}
+		for k := range opt {
+			keys = append(keys, k)
+		}
+		fs.Logf(f, "Updated config values: %s", strings.Join(keys, ", "))
+		return nil, nil
+	default:
+		return nil, fs.ErrorCommandNotFound
+	}
+}
+
+// ShowMetadata returns some metadata about the corresponding DOI
+func (f *Fs) ShowMetadata(ctx context.Context) (metadata interface{}, err error) {
+	doiURL, err := url.Parse("https://doi.org/" + f.opt.Doi)
+	if err != nil {
+		return nil, err
+	}
+
+	info := map[string]any{}
+	info["DOI"] = f.opt.Doi
+	info["URL"] = doiURL.String()
+	info["metadataURL"] = f.endpointURL
+	info["provider"] = f.provider
+	return info, nil
+}
+
+// Check the interfaces are satisfied
+var (
+	_ fs.Fs          = (*Fs)(nil)
+	_ fs.PutStreamer = (*Fs)(nil)
+	_ fs.Commander   = (*Fs)(nil)
+	_ fs.Object      = (*Object)(nil)
+	_ fs.MimeTyper   = (*Object)(nil)
+)

backend/doi/doi_internal_test.go

@@ -0,0 +1,260 @@
+package doi
+
+import (
+	"context"
+	"crypto/md5"
+	"encoding/hex"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"sort"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/rclone/rclone/backend/doi/api"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/config/configmap"
+	"github.com/rclone/rclone/fs/hash"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+var remoteName = "TestDoi"
+
+func TestParseDoi(t *testing.T) {
+	// 10.1000/182 -> 10.1000/182
+	doi := "10.1000/182"
+	parsed := parseDoi(doi)
+	assert.Equal(t, "10.1000/182", parsed)
+
+	// https://doi.org/10.1000/182 -> 10.1000/182
+	doi = "https://doi.org/10.1000/182"
+	parsed = parseDoi(doi)
+	assert.Equal(t, "10.1000/182", parsed)
+
+	// https://dx.doi.org/10.1000/182 -> 10.1000/182
+	doi = "https://dxdoi.org/10.1000/182"
+	parsed = parseDoi(doi)
+	assert.Equal(t, "10.1000/182", parsed)
+
+	// doi:10.1000/182 -> 10.1000/182
+	doi = "doi:10.1000/182"
+	parsed = parseDoi(doi)
+	assert.Equal(t, "10.1000/182", parsed)
+
+	// doi://10.1000/182 -> 10.1000/182
+	doi = "doi://10.1000/182"
+	parsed = parseDoi(doi)
+	assert.Equal(t, "10.1000/182", parsed)
+}
+
+// prepareMockDoiResolverServer prepares a test server to resolve DOIs
+func prepareMockDoiResolverServer(t *testing.T, resolvedURL string) (doiResolverAPIURL string) {
+	mux := http.NewServeMux()
+
+	// Handle requests for resolving DOIs
+	mux.HandleFunc("GET /api/handles/{handle...}", func(w http.ResponseWriter, r *http.Request) {
+		// Check that we are resolving a DOI
+		handle := strings.TrimPrefix(r.URL.Path, "/api/handles/")
+		assert.NotEmpty(t, handle)
+		index := r.URL.Query().Get("index")
+		assert.Equal(t, "1", index)
+
+		// Return the most basic response
+		result := api.DoiResolverResponse{
+			ResponseCode: 1,
+			Handle:       handle,
+			Values: []api.DoiResolverResponseValue{
+				{
+					Index: 1,
+					Type:  "URL",
+					Data: api.DoiResolverResponseValueData{
+						Format: "string",
+						Value:  resolvedURL,
+					},
+				},
+			},
+		}
+		resultBytes, err := json.Marshal(result)
+		require.NoError(t, err)
+		w.Header().Add("Content-Type", "application/json")
+		_, err = w.Write(resultBytes)
+		require.NoError(t, err)
+	})
+
+	// Make the test server
+	ts := httptest.NewServer(mux)
+
+	// Close the server at the end of the test
+	t.Cleanup(ts.Close)
+
+	return ts.URL + "/api"
+}
+
+func md5Sum(text string) string {
+	hash := md5.Sum([]byte(text))
+	return hex.EncodeToString(hash[:])
+}
+
+// prepareMockZenodoServer prepares a test server that mocks Zenodo.org
+func prepareMockZenodoServer(t *testing.T, files map[string]string) *httptest.Server {
+	mux := http.NewServeMux()
+
+	// Handle requests for a single record
+	mux.HandleFunc("GET /api/records/{recordID...}", func(w http.ResponseWriter, r *http.Request) {
+		// Check that we are returning data about a single record
+		recordID := strings.TrimPrefix(r.URL.Path, "/api/records/")
+		assert.NotEmpty(t, recordID)
+
+		// Return the most basic response
+		selfURL, err := url.Parse("http://" + r.Host)
+		require.NoError(t, err)
+		selfURL = selfURL.JoinPath(r.URL.String())
+		result := api.InvenioRecordResponse{
+			Links: api.InvenioRecordResponseLinks{
+				Self: selfURL.String(),
+			},
+		}
+		resultBytes, err := json.Marshal(result)
+		require.NoError(t, err)
+		w.Header().Add("Content-Type", "application/json")
+		_, err = w.Write(resultBytes)
+		require.NoError(t, err)
+	})
+	// Handle requests for listing files in a record
+	mux.HandleFunc("GET /api/records/{record}/files", func(w http.ResponseWriter, r *http.Request) {
+		// Return the most basic response
+		filesBaseURL, err := url.Parse("http://" + r.Host)
+		require.NoError(t, err)
+		filesBaseURL = filesBaseURL.JoinPath("/api/files/")
+
+		entries := []api.InvenioFilesResponseEntry{}
+		for filename, contents := range files {
+			entries = append(entries,
+				api.InvenioFilesResponseEntry{
+					Key:      filename,
+					Checksum: md5Sum(contents),
+					Size:     int64(len(contents)),
+					Updated:  time.Now().UTC().Format(time.RFC3339),
+					MimeType: "text/plain; charset=utf-8",
+					Links: api.InvenioFilesResponseEntryLinks{
+						Content: filesBaseURL.JoinPath(filename).String(),
+					},
+				},
+			)
+		}
+
+		result := api.InvenioFilesResponse{
+			Entries: entries,
+		}
+		resultBytes, err := json.Marshal(result)
+		require.NoError(t, err)
+		w.Header().Add("Content-Type", "application/json")
+		_, err = w.Write(resultBytes)
+		require.NoError(t, err)
+	})
+	// Handle requests for file contents
+	mux.HandleFunc("/api/files/{file}", func(w http.ResponseWriter, r *http.Request) {
+		// Check that we are returning the contents of a file
+		filename := strings.TrimPrefix(r.URL.Path, "/api/files/")
+		assert.NotEmpty(t, filename)
+		contents, found := files[filename]
+		if !found {
+			w.WriteHeader(404)
+			return
+		}
+
+		// Return the most basic response
+		_, err := w.Write([]byte(contents))
+		require.NoError(t, err)
+	})
+
+	// Make the test server
+	ts := httptest.NewServer(mux)
+
+	// Close the server at the end of the test
+	t.Cleanup(ts.Close)
+
+	return ts
+}
+
+func TestZenodoRemote(t *testing.T) {
+	recordID := "2600782"
+	doi := "10.5281/zenodo.2600782"
+
+	// The files in the dataset
+	files := map[string]string{
+		"README.md": "This is a dataset.",
+		"data.txt":  "Some data",
+	}
+
+	ts := prepareMockZenodoServer(t, files)
+	resolvedURL := ts.URL + "/record/" + recordID
+
+	doiResolverAPIURL := prepareMockDoiResolverServer(t, resolvedURL)
+
+	testConfig := configmap.Simple{
+		"type":                 "doi",
+		"doi":                  doi,
+		"provider":             "zenodo",
+		"doi_resolver_api_url": doiResolverAPIURL,
+	}
+	f, err := NewFs(context.Background(), remoteName, "", testConfig)
+	require.NoError(t, err)
+
+	// Test listing the DOI files
+	entries, err := f.List(context.Background(), "")
+	require.NoError(t, err)
+
+	sort.Sort(entries)
+
+	require.Equal(t, len(files), len(entries))
+
+	e := entries[0]
+	assert.Equal(t, "README.md", e.Remote())
+	assert.Equal(t, int64(18), e.Size())
+	_, ok := e.(*Object)
+	assert.True(t, ok)
+
+	e = entries[1]
+	assert.Equal(t, "data.txt", e.Remote())
+	assert.Equal(t, int64(9), e.Size())
+	_, ok = e.(*Object)
+	assert.True(t, ok)
+
+	// Test reading the DOI files
+	o, err := f.NewObject(context.Background(), "README.md")
+	require.NoError(t, err)
+	assert.Equal(t, int64(18), o.Size())
+	md5Hash, err := o.Hash(context.Background(), hash.MD5)
+	require.NoError(t, err)
+	assert.Equal(t, "464352b1cab5240e44528a56fda33d9d", md5Hash)
+	fd, err := o.Open(context.Background())
+	require.NoError(t, err)
+	data, err := io.ReadAll(fd)
+	require.NoError(t, err)
+	require.NoError(t, fd.Close())
+	assert.Equal(t, []byte(files["README.md"]), data)
+	do, ok := o.(fs.MimeTyper)
+	require.True(t, ok)
+	assert.Equal(t, "text/plain; charset=utf-8", do.MimeType(context.Background()))
+
+	o, err = f.NewObject(context.Background(), "data.txt")
+	require.NoError(t, err)
+	assert.Equal(t, int64(9), o.Size())
+	md5Hash, err = o.Hash(context.Background(), hash.MD5)
+	require.NoError(t, err)
+	assert.Equal(t, "5b82f8bf4df2bfb0e66ccaa7306fd024", md5Hash)
+	fd, err = o.Open(context.Background())
+	require.NoError(t, err)
+	data, err = io.ReadAll(fd)
+	require.NoError(t, err)
+	require.NoError(t, fd.Close())
+	assert.Equal(t, []byte(files["data.txt"]), data)
+	do, ok = o.(fs.MimeTyper)
+	require.True(t, ok)
+	assert.Equal(t, "text/plain; charset=utf-8", do.MimeType(context.Background()))
+}

backend/doi/doi_test.go

@@ -0,0 +1,16 @@
+// Test DOI filesystem interface
+package doi
+
+import (
+	"testing"
+
+	"github.com/rclone/rclone/fstest/fstests"
+)
+
+// TestIntegration runs integration tests against the remote
+func TestIntegration(t *testing.T) {
+	fstests.Run(t, &fstests.Opt{
+		RemoteName: "TestDoi:",
+		NilObject:  (*Object)(nil),
+	})
+}

backend/doi/invenio.go

@@ -0,0 +1,164 @@
+// Implementation for InvenioRDM
+
+package doi
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"net/url"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/rclone/rclone/backend/doi/api"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/lib/rest"
+)
+
+var invenioRecordRegex = regexp.MustCompile(`\/records?\/(.+)`)
+
+// Returns true if resolvedURL is likely a DOI hosted on an InvenioRDM intallation
+func activateInvenio(ctx context.Context, srv *rest.Client, pacer *fs.Pacer, resolvedURL *url.URL) (isActive bool) {
+	_, _, err := resolveInvenioEndpoint(ctx, srv, pacer, resolvedURL)
+	return err == nil
+}
+
+// Resolve the main API endpoint for a DOI hosted on an InvenioRDM installation
+func resolveInvenioEndpoint(ctx context.Context, srv *rest.Client, pacer *fs.Pacer, resolvedURL *url.URL) (provider Provider, endpoint *url.URL, err error) {
+	var res *http.Response
+	opts := rest.Opts{
+		Method:  "GET",
+		RootURL: resolvedURL.String(),
+	}
+	err = pacer.Call(func() (bool, error) {
+		res, err = srv.Call(ctx, &opts)
+		return shouldRetry(ctx, res, err)
+	})
+	if err != nil {
+		return "", nil, err
+	}
+
+	// First, attempt to grab the API URL from the headers
+	var linksetURL *url.URL
+	links := parseLinkHeader(res.Header.Get("Link"))
+	for _, link := range links {
+		if link.Rel == "linkset" && link.Type == "application/linkset+json" {
+			parsed, err := url.Parse(link.Href)
+			if err == nil {
+				linksetURL = parsed
+				break
+			}
+		}
+	}
+
+	if linksetURL != nil {
+		endpoint, err = checkInvenioAPIURL(ctx, srv, pacer, linksetURL)
+		if err == nil {
+			return Invenio, endpoint, nil
+		}
+		fs.Logf(nil, "using linkset URL failed: %s", err.Error())
+	}
+
+	// If there is no linkset header, try to grab the record ID from the URL
+	recordID := ""
+	resURL := res.Request.URL
+	match := invenioRecordRegex.FindStringSubmatch(resURL.EscapedPath())
+	if match != nil {
+		recordID = match[1]
+		guessedURL := res.Request.URL.ResolveReference(&url.URL{
+			Path: "/api/records/" + recordID,
+		})
+		endpoint, err = checkInvenioAPIURL(ctx, srv, pacer, guessedURL)
+		if err == nil {
+			return Invenio, endpoint, nil
+		}
+		fs.Logf(nil, "guessing the URL failed: %s", err.Error())
+	}
+
+	return "", nil, fmt.Errorf("could not resolve the Invenio API endpoint for '%s'", resolvedURL.String())
+}
+
+func checkInvenioAPIURL(ctx context.Context, srv *rest.Client, pacer *fs.Pacer, resolvedURL *url.URL) (endpoint *url.URL, err error) {
+	var result api.InvenioRecordResponse
+	opts := rest.Opts{
+		Method:  "GET",
+		RootURL: resolvedURL.String(),
+	}
+	err = pacer.Call(func() (bool, error) {
+		res, err := srv.CallJSON(ctx, &opts, nil, &result)
+		return shouldRetry(ctx, res, err)
+	})
+	if err != nil {
+		return nil, err
+	}
+	if result.Links.Self == "" {
+		return nil, fmt.Errorf("could not parse API response from '%s'", resolvedURL.String())
+	}
+	return url.Parse(result.Links.Self)
+}
+
+// invenioProvider implements the doiProvider interface for InvenioRDM installations
+type invenioProvider struct {
+	f *Fs
+}
+
+// ListEntries returns the full list of entries found at the remote, regardless of root
+func (ip *invenioProvider) ListEntries(ctx context.Context) (entries []*Object, err error) {
+	// Use the cache if populated
+	cachedEntries, found := ip.f.cache.GetMaybe("files")
+	if found {
+		parsedEntries, ok := cachedEntries.([]Object)
+		if ok {
+			for _, entry := range parsedEntries {
+				newEntry := entry
+				entries = append(entries, &newEntry)
+			}
+			return entries, nil
+		}
+	}
+
+	filesURL := ip.f.endpoint.JoinPath("files")
+	var result api.InvenioFilesResponse
+	opts := rest.Opts{
+		Method: "GET",
+		Path:   strings.TrimLeft(filesURL.EscapedPath(), "/"),
+	}
+	err = ip.f.pacer.Call(func() (bool, error) {
+		res, err := ip.f.srv.CallJSON(ctx, &opts, nil, &result)
+		return shouldRetry(ctx, res, err)
+	})
+	if err != nil {
+		return nil, fmt.Errorf("readDir failed: %w", err)
+	}
+	for _, file := range result.Entries {
+		modTime, modTimeErr := time.Parse(time.RFC3339, file.Updated)
+		if modTimeErr != nil {
+			fs.Logf(ip.f, "error: could not parse last update time %v", modTimeErr)
+			modTime = timeUnset
+		}
+		entry := &Object{
+			fs:          ip.f,
+			remote:      file.Key,
+			contentURL:  file.Links.Content,
+			size:        file.Size,
+			modTime:     modTime,
+			contentType: file.MimeType,
+			md5:         strings.TrimPrefix(file.Checksum, "md5:"),
+		}
+		entries = append(entries, entry)
+	}
+	// Populate the cache
+	cacheEntries := []Object{}
+	for _, entry := range entries {
+		cacheEntries = append(cacheEntries, *entry)
+	}
+	ip.f.cache.Put("files", cacheEntries)
+	return entries, nil
+}
+
+func newInvenioProvider(f *Fs) doiProvider {
+	return &invenioProvider{
+		f: f,
+	}
+}

backend/doi/link_header.go

@@ -0,0 +1,75 @@
+package doi
+
+import (
+	"regexp"
+	"strings"
+)
+
+var linkRegex = regexp.MustCompile(`^<(.+)>$`)
+var valueRegex = regexp.MustCompile(`^"(.+)"$`)
+
+// headerLink represents a link as presented in HTTP headers
+// MDN Reference: https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Link
+type headerLink struct {
+	Href   string
+	Rel    string
+	Type   string
+	Extras map[string]string
+}
+
+func parseLinkHeader(header string) (links []headerLink) {
+	for _, link := range strings.Split(header, ",") {
+		link = strings.TrimSpace(link)
+		parsed := parseLink(link)
+		if parsed != nil {
+			links = append(links, *parsed)
+		}
+	}
+	return links
+}
+
+func parseLink(link string) (parsedLink *headerLink) {
+	var parts []string
+	for _, part := range strings.Split(link, ";") {
+		parts = append(parts, strings.TrimSpace(part))
+	}
+
+	match := linkRegex.FindStringSubmatch(parts[0])
+	if match == nil {
+		return nil
+	}
+
+	result := &headerLink{
+		Href:   match[1],
+		Extras: map[string]string{},
+	}
+
+	for _, keyValue := range parts[1:] {
+		parsed := parseKeyValue(keyValue)
+		if parsed != nil {
+			key, value := parsed[0], parsed[1]
+			switch strings.ToLower(key) {
+			case "rel":
+				result.Rel = value
+			case "type":
+				result.Type = value
+			default:
+				result.Extras[key] = value
+			}
+		}
+	}
+	return result
+}
+
+func parseKeyValue(keyValue string) []string {
+	parts := strings.SplitN(keyValue, "=", 2)
+	if parts[0] == "" || len(parts) < 2 {
+		return nil
+	}
+	match := valueRegex.FindStringSubmatch(parts[1])
+	if match != nil {
+		parts[1] = match[1]
+		return parts
+	}
+	return parts
+}

backend/doi/link_header_internal_test.go

@@ -0,0 +1,44 @@
+package doi
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestParseLinkHeader(t *testing.T) {
+	header := "<https://zenodo.org/api/records/15063252> ; rel=\"linkset\" ; type=\"application/linkset+json\""
+	links := parseLinkHeader(header)
+	expected := headerLink{
+		Href:   "https://zenodo.org/api/records/15063252",
+		Rel:    "linkset",
+		Type:   "application/linkset+json",
+		Extras: map[string]string{},
+	}
+	assert.Contains(t, links, expected)
+
+	header = "<https://api.example.com/issues?page=2>; rel=\"prev\", <https://api.example.com/issues?page=4>; rel=\"next\", <https://api.example.com/issues?page=10>; rel=\"last\", <https://api.example.com/issues?page=1>; rel=\"first\""
+	links = parseLinkHeader(header)
+	expectedList := []headerLink{{
+		Href:   "https://api.example.com/issues?page=2",
+		Rel:    "prev",
+		Type:   "",
+		Extras: map[string]string{},
+	}, {
+		Href:   "https://api.example.com/issues?page=4",
+		Rel:    "next",
+		Type:   "",
+		Extras: map[string]string{},
+	}, {
+		Href:   "https://api.example.com/issues?page=10",
+		Rel:    "last",
+		Type:   "",
+		Extras: map[string]string{},
+	}, {
+		Href:   "https://api.example.com/issues?page=1",
+		Rel:    "first",
+		Type:   "",
+		Extras: map[string]string{},
+	}}
+	assert.Equal(t, links, expectedList)
+}

backend/doi/zenodo.go

@@ -0,0 +1,47 @@
+// Implementation for Zenodo
+
+package doi
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"regexp"
+
+	"github.com/rclone/rclone/backend/doi/api"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/lib/rest"
+)
+
+var zenodoRecordRegex = regexp.MustCompile(`zenodo[.](.+)`)
+
+// Resolve the main API endpoint for a DOI hosted on Zenodo
+func resolveZenodoEndpoint(ctx context.Context, srv *rest.Client, pacer *fs.Pacer, resolvedURL *url.URL, doi string) (provider Provider, endpoint *url.URL, err error) {
+	match := zenodoRecordRegex.FindStringSubmatch(doi)
+	if match == nil {
+		return "", nil, fmt.Errorf("could not derive API endpoint URL from '%s'", resolvedURL.String())
+	}
+
+	recordID := match[1]
+	endpointURL := resolvedURL.ResolveReference(&url.URL{Path: "/api/records/" + recordID})
+
+	var result api.InvenioRecordResponse
+	opts := rest.Opts{
+		Method:  "GET",
+		RootURL: endpointURL.String(),
+	}
+	err = pacer.Call(func() (bool, error) {
+		res, err := srv.CallJSON(ctx, &opts, nil, &result)
+		return shouldRetry(ctx, res, err)
+	})
+	if err != nil {
+		return "", nil, err
+	}
+
+	endpointURL, err = url.Parse(result.Links.Self)
+	if err != nil {
+		return "", nil, err
+	}
+
+	return Zenodo, endpointURL, nil
+}

backend/drive/drive.go

@@ -18,6 +18,7 @@ import (
 	"net/http"
 	"os"
 	"path"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
@@ -37,8 +38,8 @@ import (
 	"github.com/rclone/rclone/fs/fshttp"
 	"github.com/rclone/rclone/fs/fspath"
 	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/fs/list"
 	"github.com/rclone/rclone/fs/operations"
-	"github.com/rclone/rclone/fs/walk"
 	"github.com/rclone/rclone/lib/dircache"
 	"github.com/rclone/rclone/lib/encoder"
 	"github.com/rclone/rclone/lib/env"
@@ -80,9 +81,10 @@ const (
 // Globals
 var (
 	// Description of how to auth for this app
-	driveConfig = &oauth2.Config{
+	driveConfig = &oauthutil.Config{
 		Scopes:       []string{scopePrefix + "drive"},
-		Endpoint:     google.Endpoint,
+		AuthURL:      google.Endpoint.AuthURL,
+		TokenURL:     google.Endpoint.TokenURL,
 		ClientID:     rcloneClientID,
 		ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
 		RedirectURL:  oauthutil.RedirectURL,
@@ -120,6 +122,7 @@ var (
 		"text/html":                 ".html",
 		"text/plain":                ".txt",
 		"text/tab-separated-values": ".tsv",
+		"text/markdown":             ".md",
 	}
 	_mimeTypeToExtensionLinks = map[string]string{
 		"application/x-link-desktop": ".desktop",
@@ -197,13 +200,7 @@ func driveScopes(scopesString string) (scopes []string) {
 
 // Returns true if one of the scopes was "drive.appfolder"
 func driveScopesContainsAppFolder(scopes []string) bool {
-	for _, scope := range scopes {
-		if scope == scopePrefix+"drive.appfolder" {
-			return true
-		}
-
-	}
-	return false
+	return slices.Contains(scopes, scopePrefix+"drive.appfolder")
 }
 
 func driveOAuthOptions() []fs.Option {
@@ -957,12 +954,7 @@ func parseDrivePath(path string) (root string, err error) {
 type listFn func(*drive.File) bool
 
 func containsString(slice []string, s string) bool {
-	for _, e := range slice {
-		if e == s {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(slice, s)
 }
 
 // getFile returns drive.File for the ID passed and fields passed in
@@ -1151,13 +1143,7 @@ OUTER:
 			// Check the case of items is correct since
 			// the `=` operator is case insensitive.
 			if title != "" && title != item.Name {
-				found := false
-				for _, stem := range stems {
-					if stem == item.Name {
-						found = true
-						break
-					}
-				}
+				found := slices.Contains(stems, item.Name)
 				if !found {
 					continue
 				}
@@ -1210,6 +1196,7 @@ func fixMimeType(mimeTypeIn string) string {
 	}
 	return mimeTypeOut
 }
+
 func fixMimeTypeMap(in map[string][]string) (out map[string][]string) {
 	out = make(map[string][]string, len(in))
 	for k, v := range in {
@@ -1220,9 +1207,11 @@ func fixMimeTypeMap(in map[string][]string) (out map[string][]string) {
 	}
 	return out
 }
+
 func isInternalMimeType(mimeType string) bool {
 	return strings.HasPrefix(mimeType, "application/vnd.google-apps.")
 }
+
 func isLinkMimeType(mimeType string) bool {
 	return strings.HasPrefix(mimeType, "application/x-link-")
 }
@@ -1557,13 +1546,10 @@ func (f *Fs) getFileFields(ctx context.Context) (fields googleapi.Field) {
 func (f *Fs) newRegularObject(ctx context.Context, remote string, info *drive.File) (obj fs.Object, err error) {
 	// wipe checksum if SkipChecksumGphotos and file is type Photo or Video
 	if f.opt.SkipChecksumGphotos {
-		for _, space := range info.Spaces {
-			if space == "photos" {
-				info.Md5Checksum = ""
-				info.Sha1Checksum = ""
-				info.Sha256Checksum = ""
-				break
-			}
+		if slices.Contains(info.Spaces, "photos") {
+			info.Md5Checksum = ""
+			info.Sha1Checksum = ""
+			info.Sha256Checksum = ""
 		}
 	}
 	o := &Object{
@@ -1655,7 +1641,8 @@ func (f *Fs) newObjectWithInfo(ctx context.Context, remote string, info *drive.F
 // When the drive.File cannot be represented as an fs.Object it will return (nil, nil).
 func (f *Fs) newObjectWithExportInfo(
 	ctx context.Context, remote string, info *drive.File,
-	extension, exportName, exportMimeType string, isDocument bool) (o fs.Object, err error) {
+	extension, exportName, exportMimeType string, isDocument bool,
+) (o fs.Object, err error) {
 	// Note that resolveShortcut will have been called already if
 	// we are being called from a listing. However the drive.Item
 	// will have been resolved so this will do nothing.
@@ -1758,7 +1745,7 @@ func (f *Fs) createDir(ctx context.Context, pathID, leaf string, metadata fs.Met
 	}
 	var updateMetadata updateMetadataFn
 	if len(metadata) > 0 {
-		updateMetadata, err = f.updateMetadata(ctx, createInfo, metadata, true)
+		updateMetadata, err = f.updateMetadata(ctx, createInfo, metadata, true, true)
 		if err != nil {
 			return nil, fmt.Errorf("create dir: failed to update metadata: %w", err)
 		}
@@ -1789,7 +1776,7 @@ func (f *Fs) updateDir(ctx context.Context, dirID string, metadata fs.Metadata)
 	}
 	dirID = actualID(dirID)
 	updateInfo := &drive.File{}
-	updateMetadata, err := f.updateMetadata(ctx, updateInfo, metadata, true)
+	updateMetadata, err := f.updateMetadata(ctx, updateInfo, metadata, true, true)
 	if err != nil {
 		return nil, fmt.Errorf("update dir: failed to update metadata from source object: %w", err)
 	}
@@ -1846,6 +1833,7 @@ func linkTemplate(mt string) *template.Template {
 	})
 	return _linkTemplates[mt]
 }
+
 func (f *Fs) fetchFormats(ctx context.Context) {
 	fetchFormatsOnce.Do(func() {
 		var about *drive.About
@@ -1891,7 +1879,8 @@ func (f *Fs) importFormats(ctx context.Context) map[string][]string {
 // Look through the exportExtensions and find the first format that can be
 // converted.  If none found then return ("", "", false)
 func (f *Fs) findExportFormatByMimeType(ctx context.Context, itemMimeType string) (
-	extension, mimeType string, isDocument bool) {
+	extension, mimeType string, isDocument bool,
+) {
 	exportMimeTypes, isDocument := f.exportFormats(ctx)[itemMimeType]
 	if isDocument {
 		for _, _extension := range f.exportExtensions {
@@ -2200,7 +2189,7 @@ func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (
 	wg := sync.WaitGroup{}
 	in := make(chan listREntry, listRInputBuffer)
 	out := make(chan error, f.ci.Checkers)
-	list := walk.NewListRHelper(callback)
+	list := list.NewHelper(callback)
 	overflow := []listREntry{}
 	listed := 0
 
@@ -2219,7 +2208,7 @@ func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (
 		case in <- job:
 		default:
 			overflow = append(overflow, job)
-			wg.Add(-1)
+			wg.Done()
 		}
 	}
 
@@ -2238,7 +2227,7 @@ func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (
 	wg.Add(1)
 	in <- listREntry{directoryID, dir}
 
-	for i := 0; i < f.ci.Checkers; i++ {
+	for range f.ci.Checkers {
 		go f.listRRunner(ctx, &wg, in, out, cb, sendJob)
 	}
 	go func() {
@@ -2247,11 +2236,8 @@ func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (
 		// if the input channel overflowed add the collected entries to the channel now
 		for len(overflow) > 0 {
 			mu.Lock()
-			l := len(overflow)
 			// only fill half of the channel to prevent entries being put into overflow again
-			if l > listRInputBuffer/2 {
-				l = listRInputBuffer / 2
-			}
+			l := min(len(overflow), listRInputBuffer/2)
 			wg.Add(l)
 			for _, d := range overflow[:l] {
 				in <- d
@@ -2271,7 +2257,7 @@ func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (
 		mu.Unlock()
 	}()
 	// wait until the all workers to finish
-	for i := 0; i < f.ci.Checkers; i++ {
+	for range f.ci.Checkers {
 		e := <-out
 		mu.Lock()
 		// if one worker returns an error early, close the input so all other workers exit
@@ -2687,7 +2673,7 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
 	if shortcutID != "" {
 		return f.delete(ctx, shortcutID, f.opt.UseTrash)
 	}
-	var trashedFiles = false
+	trashedFiles := false
 	if check {
 		found, err := f.list(ctx, []string{directoryID}, "", false, false, f.opt.TrashedOnly, true, func(item *drive.File) bool {
 			if !item.Trashed {
@@ -2924,7 +2910,6 @@ func (f *Fs) CleanUp(ctx context.Context) error {
 		err := f.svc.Files.EmptyTrash().Context(ctx).Do()
 		return f.shouldRetry(ctx, err)
 	})
-
 	if err != nil {
 		return err
 	}
@@ -3185,6 +3170,7 @@ func (f *Fs) ChangeNotify(ctx context.Context, notifyFunc func(string, fs.EntryT
 		}
 	}()
 }
+
 func (f *Fs) changeNotifyStartPageToken(ctx context.Context) (pageToken string, err error) {
 	var startPageToken *drive.StartPageToken
 	err = f.pacer.Call(func() (bool, error) {
@@ -3523,14 +3509,14 @@ func (f *Fs) unTrashDir(ctx context.Context, dir string, recurse bool) (r unTras
 	return f.unTrash(ctx, dir, directoryID, true)
 }
 
-// copy file with id to dest
-func (f *Fs) copyID(ctx context.Context, id, dest string) (err error) {
+// copy or move file with id to dest
+func (f *Fs) copyOrMoveID(ctx context.Context, operation string, id, dest string) (err error) {
 	info, err := f.getFile(ctx, id, f.getFileFields(ctx))
 	if err != nil {
 		return fmt.Errorf("couldn't find id: %w", err)
 	}
 	if info.MimeType == driveFolderType {
-		return fmt.Errorf("can't copy directory use: rclone copy --drive-root-folder-id %s %s %s", id, fs.ConfigString(f), dest)
+		return fmt.Errorf("can't %s directory use: rclone %s --drive-root-folder-id %s %s %s", operation, operation, id, fs.ConfigString(f), dest)
 	}
 	info.Name = f.opt.Enc.ToStandardName(info.Name)
 	o, err := f.newObjectWithInfo(ctx, info.Name, info)
@@ -3551,14 +3537,21 @@ func (f *Fs) copyID(ctx context.Context, id, dest string) (err error) {
 	if err != nil {
 		return err
 	}
-	_, err = operations.Copy(ctx, dstFs, nil, destLeaf, o)
-	if err != nil {
-		return fmt.Errorf("copy failed: %w", err)
+
+	var opErr error
+	if operation == "moveid" {
+		_, opErr = operations.Move(ctx, dstFs, nil, destLeaf, o)
+	} else {
+		_, opErr = operations.Copy(ctx, dstFs, nil, destLeaf, o)
+	}
+	if opErr != nil {
+		return fmt.Errorf("%s failed: %w", operation, opErr)
 	}
 	return nil
 }
 
-func (f *Fs) query(ctx context.Context, query string) (entries []*drive.File, err error) {
+// Run the drive query calling fn on each entry found
+func (f *Fs) queryFn(ctx context.Context, query string, fn func(*drive.File)) (err error) {
 	list := f.svc.Files.List()
 	if query != "" {
 		list.Q(query)
@@ -3577,10 +3570,7 @@ func (f *Fs) query(ctx context.Context, query string) (entries []*drive.File, er
 	if f.rootFolderID == "appDataFolder" {
 		list.Spaces("appDataFolder")
 	}
-
 	fields := fmt.Sprintf("files(%s),nextPageToken,incompleteSearch", f.getFileFields(ctx))
-
-	var results []*drive.File
 	for {
 		var files *drive.FileList
 		err = f.pacer.Call(func() (bool, error) {
@@ -3588,20 +3578,66 @@ func (f *Fs) query(ctx context.Context, query string) (entries []*drive.File, er
 			return f.shouldRetry(ctx, err)
 		})
 		if err != nil {
-			return nil, fmt.Errorf("failed to execute query: %w", err)
+			return fmt.Errorf("failed to execute query: %w", err)
 		}
 		if files.IncompleteSearch {
 			fs.Errorf(f, "search result INCOMPLETE")
 		}
-		results = append(results, files.Files...)
+		for _, item := range files.Files {
+			fn(item)
+		}
 		if files.NextPageToken == "" {
 			break
 		}
 		list.PageToken(files.NextPageToken)
 	}
+	return nil
+}
+
+// Run the drive query returning the entries found
+func (f *Fs) query(ctx context.Context, query string) (entries []*drive.File, err error) {
+	var results []*drive.File
+	err = f.queryFn(ctx, query, func(item *drive.File) {
+		results = append(results, item)
+	})
+	if err != nil {
+		return nil, err
+	}
 	return results, nil
 }
 
+// Rescue, list or delete orphaned files
+func (f *Fs) rescue(ctx context.Context, dirID string, delete bool) (err error) {
+	return f.queryFn(ctx, "'me' in owners and trashed=false", func(item *drive.File) {
+		if len(item.Parents) != 0 {
+			return
+		}
+		// Have found an orphaned entry
+		if delete {
+			fs.Infof(item.Name, "Deleting orphan %q into trash", item.Id)
+			err = f.delete(ctx, item.Id, true)
+			if err != nil {
+				fs.Errorf(item.Name, "Failed to delete orphan %q: %v", item.Id, err)
+			}
+		} else if dirID == "" {
+			operations.SyncPrintf("%q, %q\n", item.Name, item.Id)
+		} else {
+			fs.Infof(item.Name, "Rescuing orphan %q", item.Id)
+			err = f.pacer.Call(func() (bool, error) {
+				_, err = f.svc.Files.Update(item.Id, nil).
+					AddParents(dirID).
+					Fields(f.getFileFields(ctx)).
+					SupportsAllDrives(true).
+					Context(ctx).Do()
+				return f.shouldRetry(ctx, err)
+			})
+			if err != nil {
+				fs.Errorf(item.Name, "Failed to rescue orphan %q: %v", item.Id, err)
+			}
+		}
+	})
+}
+
 var commandHelp = []fs.CommandHelp{{
 	Name:  "get",
 	Short: "Get command for fetching the drive config parameters",
@@ -3746,6 +3782,28 @@ attempted if possible.
 
 Use the --interactive/-i or --dry-run flag to see what would be copied before copying.
 `,
+}, {
+	Name:  "moveid",
+	Short: "Move files by ID",
+	Long: `This command moves files by ID
+
+Usage:
+
+    rclone backend moveid drive: ID path
+    rclone backend moveid drive: ID1 path1 ID2 path2
+
+It moves the drive file with ID given to the path (an rclone path which
+will be passed internally to rclone moveto).
+
+The path should end with a / to indicate move the file as named to
+this directory. If it doesn't end with a / then the last path
+component will be used as the file name.
+
+If the destination is a drive backend then server-side moving will be
+attempted if possible.
+
+Use the --interactive/-i or --dry-run flag to see what would be moved beforehand.
+`,
 }, {
 	Name:  "exportformats",
 	Short: "Dump the export formats for debug purposes",
@@ -3793,6 +3851,37 @@ The result is a JSON array of matches, for example:
 		"webViewLink": "https://drive.google.com/file/d/0AxBe_CDEF4zkGHI4d0FjYko2QkD/view?usp=drivesdk\u0026resourcekey=0-ABCDEFGHIXJQpIGqBJq3MC"
 	}
     ]`,
+}, {
+	Name:  "rescue",
+	Short: "Rescue or delete any orphaned files",
+	Long: `This command rescues or deletes any orphaned files or directories.
+
+Sometimes files can get orphaned in Google Drive. This means that they
+are no longer in any folder in Google Drive.
+
+This command finds those files and either rescues them to a directory
+you specify or deletes them.
+
+Usage:
+
+This can be used in 3 ways.
+
+First, list all orphaned files
+
+    rclone backend rescue drive:
+
+Second rescue all orphaned files to the directory indicated
+
+    rclone backend rescue drive: "relative/path/to/rescue/directory"
+
+e.g. To rescue all orphans to a directory called "Orphans" in the top level
+
+    rclone backend rescue drive: Orphans
+
+Third delete all orphaned files to the trash
+
+    rclone backend rescue drive: -o delete
+`,
 }}
 
 // Command the backend to run a named command
@@ -3804,7 +3893,7 @@ The result is a JSON array of matches, for example:
 // The result should be capable of being JSON encoded
 // If it is a string or a []string it will be shown to the user
 // otherwise it will be JSON encoded and shown to the user like that
-func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (out interface{}, err error) {
+func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (out any, err error) {
 	switch name {
 	case "get":
 		out := make(map[string]string)
@@ -3893,16 +3982,16 @@ func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[str
 			dir = arg[0]
 		}
 		return f.unTrashDir(ctx, dir, true)
-	case "copyid":
+	case "copyid", "moveid":
 		if len(arg)%2 != 0 {
 			return nil, errors.New("need an even number of arguments")
 		}
 		for len(arg) > 0 {
 			id, dest := arg[0], arg[1]
 			arg = arg[2:]
-			err = f.copyID(ctx, id, dest)
+			err = f.copyOrMoveID(ctx, name, id, dest)
 			if err != nil {
-				return nil, fmt.Errorf("failed copying %q to %q: %w", id, dest, err)
+				return nil, fmt.Errorf("failed %s %q to %q: %w", name, id, dest, err)
 			}
 		}
 		return nil, nil
@@ -3913,14 +4002,29 @@ func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[str
 	case "query":
 		if len(arg) == 1 {
 			query := arg[0]
-			var results, err = f.query(ctx, query)
+			results, err := f.query(ctx, query)
 			if err != nil {
 				return nil, fmt.Errorf("failed to execute query: %q, error: %w", query, err)
 			}
 			return results, nil
-		} else {
-			return nil, errors.New("need a query argument")
 		}
+		return nil, errors.New("need a query argument")
+	case "rescue":
+		dirID := ""
+		_, delete := opt["delete"]
+		if len(arg) == 0 {
+			// no arguments - list only
+		} else if !delete && len(arg) == 1 {
+			dir := arg[0]
+			dirID, err = f.dirCache.FindDir(ctx, dir, true)
+			if err != nil {
+				return nil, fmt.Errorf("failed to find or create rescue directory %q: %w", dir, err)
+			}
+			fs.Infof(f, "Rescuing orphans into %q", dir)
+		} else {
+			return nil, errors.New("syntax error: need 0 or 1 args or -o delete")
+		}
+		return nil, f.rescue(ctx, dirID, delete)
 	default:
 		return nil, fs.ErrorCommandNotFound
 	}
@@ -3964,8 +4068,9 @@ func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error) {
 	}
 	return "", hash.ErrUnsupported
 }
+
 func (o *baseObject) Hash(ctx context.Context, t hash.Type) (string, error) {
-	if t != hash.MD5 {
+	if t != hash.MD5 && t != hash.SHA1 && t != hash.SHA256 {
 		return "", hash.ErrUnsupported
 	}
 	return "", nil
@@ -3978,7 +4083,8 @@ func (o *baseObject) Size() int64 {
 
 // getRemoteInfoWithExport returns a drive.File and the export settings for the remote
 func (f *Fs) getRemoteInfoWithExport(ctx context.Context, remote string) (
-	info *drive.File, extension, exportName, exportMimeType string, isDocument bool, err error) {
+	info *drive.File, extension, exportName, exportMimeType string, isDocument bool, err error,
+) {
 	leaf, directoryID, err := f.dirCache.FindPath(ctx, remote, false)
 	if err != nil {
 		if err == fs.ErrorDirNotFound {
@@ -4191,12 +4297,13 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 	}
 	return o.baseObject.open(ctx, o.url, options...)
 }
+
 func (o *documentObject) Open(ctx context.Context, options ...fs.OpenOption) (in io.ReadCloser, err error) {
 	// Update the size with what we are reading as it can change from
 	// the HEAD in the listing to this GET. This stops rclone marking
 	// the transfer as corrupted.
 	var offset, end int64 = 0, -1
-	var newOptions = options[:0]
+	newOptions := options[:0]
 	for _, o := range options {
 		// Note that Range requests don't work on Google docs:
 		// https://developers.google.com/drive/v3/web/manage-downloads#partial_download
@@ -4223,9 +4330,10 @@ func (o *documentObject) Open(ctx context.Context, options ...fs.OpenOption) (in
 	}
 	return
 }
+
 func (o *linkObject) Open(ctx context.Context, options ...fs.OpenOption) (in io.ReadCloser, err error) {
 	var offset, limit int64 = 0, -1
-	var data = o.content
+	data := o.content
 	for _, option := range options {
 		switch x := option.(type) {
 		case *fs.SeekOption:
@@ -4250,7 +4358,8 @@ func (o *linkObject) Open(ctx context.Context, options ...fs.OpenOption) (in io.
 }
 
 func (o *baseObject) update(ctx context.Context, updateInfo *drive.File, uploadMimeType string, in io.Reader,
-	src fs.ObjectInfo) (info *drive.File, err error) {
+	src fs.ObjectInfo,
+) (info *drive.File, err error) {
 	// Make the API request to upload metadata and file data.
 	size := src.Size()
 	if size >= 0 && size < int64(o.fs.opt.UploadCutoff) {
@@ -4328,6 +4437,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 
 	return nil
 }
+
 func (o *documentObject) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	srcMimeType := fs.MimeType(ctx, src)
 	importMimeType := ""
@@ -4423,6 +4533,7 @@ func (o *baseObject) Metadata(ctx context.Context) (metadata fs.Metadata, err er
 func (o *documentObject) ext() string {
 	return o.baseObject.remote[len(o.baseObject.remote)-o.extLen:]
 }
+
 func (o *linkObject) ext() string {
 	return o.baseObject.remote[len(o.baseObject.remote)-o.extLen:]
 }

backend/drive/drive_internal_test.go

@@ -95,7 +95,7 @@ func TestInternalParseExtensions(t *testing.T) {
 		wantErr error
 	}{
 		{"doc", []string{".doc"}, nil},
-		{" docx ,XLSX, 	pptx,svg", []string{".docx", ".xlsx", ".pptx", ".svg"}, nil},
+		{" docx ,XLSX, 	pptx,svg,md", []string{".docx", ".xlsx", ".pptx", ".svg", ".md"}, nil},
 		{"docx,svg,Docx", []string{".docx", ".svg"}, nil},
 		{"docx,potato,docx", []string{".docx"}, errors.New(`couldn't find MIME type for extension ".potato"`)},
 	} {
@@ -479,8 +479,8 @@ func (f *Fs) InternalTestUnTrash(t *testing.T) {
 	require.NoError(t, f.Purge(ctx, "trashDir"))
 }
 
-// TestIntegration/FsMkdir/FsPutFiles/Internal/CopyID
-func (f *Fs) InternalTestCopyID(t *testing.T) {
+// TestIntegration/FsMkdir/FsPutFiles/Internal/CopyOrMoveID
+func (f *Fs) InternalTestCopyOrMoveID(t *testing.T) {
 	ctx := context.Background()
 	obj, err := f.NewObject(ctx, existingFile)
 	require.NoError(t, err)
@@ -498,7 +498,7 @@ func (f *Fs) InternalTestCopyID(t *testing.T) {
 	}
 
 	t.Run("BadID", func(t *testing.T) {
-		err = f.copyID(ctx, "ID-NOT-FOUND", dir+"/")
+		err = f.copyOrMoveID(ctx, "moveid", "ID-NOT-FOUND", dir+"/")
 		require.Error(t, err)
 		assert.Contains(t, err.Error(), "couldn't find id")
 	})
@@ -506,19 +506,31 @@ func (f *Fs) InternalTestCopyID(t *testing.T) {
 	t.Run("Directory", func(t *testing.T) {
 		rootID, err := f.dirCache.RootID(ctx, false)
 		require.NoError(t, err)
-		err = f.copyID(ctx, rootID, dir+"/")
+		err = f.copyOrMoveID(ctx, "moveid", rootID, dir+"/")
 		require.Error(t, err)
-		assert.Contains(t, err.Error(), "can't copy directory")
+		assert.Contains(t, err.Error(), "can't moveid directory")
 	})
 
-	t.Run("WithoutDestName", func(t *testing.T) {
-		err = f.copyID(ctx, o.id, dir+"/")
+	t.Run("MoveWithoutDestName", func(t *testing.T) {
+		err = f.copyOrMoveID(ctx, "moveid", o.id, dir+"/")
 		require.NoError(t, err)
 		checkFile(path.Base(existingFile))
 	})
 
-	t.Run("WithDestName", func(t *testing.T) {
-		err = f.copyID(ctx, o.id, dir+"/potato.txt")
+	t.Run("CopyWithoutDestName", func(t *testing.T) {
+		err = f.copyOrMoveID(ctx, "copyid", o.id, dir+"/")
+		require.NoError(t, err)
+		checkFile(path.Base(existingFile))
+	})
+
+	t.Run("MoveWithDestName", func(t *testing.T) {
+		err = f.copyOrMoveID(ctx, "moveid", o.id, dir+"/potato.txt")
+		require.NoError(t, err)
+		checkFile("potato.txt")
+	})
+
+	t.Run("CopyWithDestName", func(t *testing.T) {
+		err = f.copyOrMoveID(ctx, "copyid", o.id, dir+"/potato.txt")
 		require.NoError(t, err)
 		checkFile("potato.txt")
 	})
@@ -566,7 +578,7 @@ func (f *Fs) InternalTestAgeQuery(t *testing.T) {
 	// Check set up for filtering
 	assert.True(t, f.Features().FilterAware)
 
-	opt := &filter.Opt{}
+	opt := &filter.Options{}
 	err := opt.MaxAge.Set("1h")
 	assert.NoError(t, err)
 	flt, err := filter.NewFilter(opt)
@@ -647,7 +659,7 @@ func (f *Fs) InternalTest(t *testing.T) {
 	})
 	t.Run("Shortcuts", f.InternalTestShortcuts)
 	t.Run("UnTrash", f.InternalTestUnTrash)
-	t.Run("CopyID", f.InternalTestCopyID)
+	t.Run("CopyOrMoveID", f.InternalTestCopyOrMoveID)
 	t.Run("Query", f.InternalTestQuery)
 	t.Run("AgeQuery", f.InternalTestAgeQuery)
 	t.Run("ShouldRetry", f.InternalTestShouldRetry)

backend/drive/metadata.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"maps"
 	"strconv"
 	"strings"
 	"sync"
@@ -324,9 +325,7 @@ func (o *baseObject) parseMetadata(ctx context.Context, info *drive.File) (err e
 	metadata := make(fs.Metadata, 16)
 
 	// Dump user metadata first as it overrides system metadata
-	for k, v := range info.Properties {
-		metadata[k] = v
-	}
+	maps.Copy(metadata, info.Properties)
 
 	// System metadata
 	metadata["copy-requires-writer-permission"] = fmt.Sprint(info.CopyRequiresWriterPermission)
@@ -508,7 +507,7 @@ type updateMetadataFn func(context.Context, *drive.File) error
 //
 // It returns a callback which should be called to finish the updates
 // after the data is uploaded.
-func (f *Fs) updateMetadata(ctx context.Context, updateInfo *drive.File, meta fs.Metadata, update bool) (callback updateMetadataFn, err error) {
+func (f *Fs) updateMetadata(ctx context.Context, updateInfo *drive.File, meta fs.Metadata, update, isFolder bool) (callback updateMetadataFn, err error) {
 	callbackFns := []updateMetadataFn{}
 	callback = func(ctx context.Context, info *drive.File) error {
 		for _, fn := range callbackFns {
@@ -533,7 +532,9 @@ func (f *Fs) updateMetadata(ctx context.Context, updateInfo *drive.File, meta fs
 		}
 		switch k {
 		case "copy-requires-writer-permission":
-			if err := parseBool(&updateInfo.CopyRequiresWriterPermission); err != nil {
+			if isFolder {
+				fs.Debugf(f, "Ignoring %s=%s as can't set on folders", k, v)
+			} else if err := parseBool(&updateInfo.CopyRequiresWriterPermission); err != nil {
 				return nil, err
 			}
 		case "writers-can-share":
@@ -630,7 +631,7 @@ func (f *Fs) fetchAndUpdateMetadata(ctx context.Context, src fs.ObjectInfo, opti
 	if err != nil {
 		return nil, fmt.Errorf("failed to read metadata from source object: %w", err)
 	}
-	callback, err = f.updateMetadata(ctx, updateInfo, meta, update)
+	callback, err = f.updateMetadata(ctx, updateInfo, meta, update, false)
 	if err != nil {
 		return nil, fmt.Errorf("failed to update metadata from source object: %w", err)
 	}

backend/drive/upload.go

@@ -177,10 +177,7 @@ func (rx *resumableUpload) Upload(ctx context.Context) (*drive.File, error) {
 			if start >= rx.ContentLength {
 				break
 			}
-			reqSize = rx.ContentLength - start
-			if reqSize >= int64(rx.f.opt.ChunkSize) {
-				reqSize = int64(rx.f.opt.ChunkSize)
-			}
+			reqSize = min(rx.ContentLength-start, int64(rx.f.opt.ChunkSize))
 			chunk = readers.NewRepeatableLimitReaderBuffer(rx.Media, buf, reqSize)
 		} else {
 			// If size unknown read into buffer

backend/dropbox/batcher.go

@@ -11,7 +11,6 @@ import (
 	"fmt"
 
 	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/files"
-	"github.com/rclone/rclone/fs/fserrors"
 )
 
 // finishBatch commits the batch, returning a batch status to poll or maybe complete
@@ -21,14 +20,10 @@ func (f *Fs) finishBatch(ctx context.Context, items []*files.UploadSessionFinish
 	}
 	err = f.pacer.Call(func() (bool, error) {
 		complete, err = f.srv.UploadSessionFinishBatchV2(arg)
-		// If error is insufficient space then don't retry
-		if e, ok := err.(files.UploadSessionFinishAPIError); ok {
-			if e.EndpointError != nil && e.EndpointError.Path != nil && e.EndpointError.Path.Tag == files.WriteErrorInsufficientSpace {
-				err = fserrors.NoRetryError(err)
-				return false, err
-			}
+		if retry, err := shouldRetryExclude(ctx, err); !retry {
+			return retry, err
 		}
-		// after the first chunk is uploaded, we retry everything
+		// after the first chunk is uploaded, we retry everything except the excluded errors
 		return err != nil, err
 	})
 	if err != nil {

backend/dropbox/dbhash/dbhash.go

@@ -55,10 +55,7 @@ func (d *digest) Write(p []byte) (n int, err error) {
 	n = len(p)
 	for len(p) > 0 {
 		d.writtenMore = true
-		toWrite := bytesPerBlock - d.n
-		if toWrite > len(p) {
-			toWrite = len(p)
-		}
+		toWrite := min(bytesPerBlock-d.n, len(p))
 		_, err = d.blockHash.Write(p[:toWrite])
 		if err != nil {
 			panic(hashReturnedError)

backend/dropbox/dbhash/dbhash_test.go

@@ -11,7 +11,7 @@ import (
 
 func testChunk(t *testing.T, chunk int) {
 	data := make([]byte, chunk)
-	for i := 0; i < chunk; i++ {
+	for i := range chunk {
 		data[i] = 'A'
 	}
 	for _, test := range []struct {

backend/dropbox/dropbox.go

@@ -47,6 +47,7 @@ import (
 	"github.com/rclone/rclone/fs/config/obscure"
 	"github.com/rclone/rclone/fs/fserrors"
 	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/fs/operations"
 	"github.com/rclone/rclone/lib/batcher"
 	"github.com/rclone/rclone/lib/encoder"
 	"github.com/rclone/rclone/lib/oauthutil"
@@ -91,9 +92,12 @@ const (
 	maxFileNameLength = 255
 )
 
+type exportAPIFormat string
+type exportExtension string // dotless
+
 var (
 	// Description of how to auth for this app
-	dropboxConfig = &oauth2.Config{
+	dropboxConfig = &oauthutil.Config{
 		Scopes: []string{
 			"files.metadata.write",
 			"files.content.write",
@@ -108,7 +112,8 @@ var (
 		// 	AuthURL:  "https://www.dropbox.com/1/oauth2/authorize",
 		// 	TokenURL: "https://api.dropboxapi.com/1/oauth2/token",
 		// },
-		Endpoint:     dropbox.OAuthEndpoint(""),
+		AuthURL:      dropbox.OAuthEndpoint("").AuthURL,
+		TokenURL:     dropbox.OAuthEndpoint("").TokenURL,
 		ClientID:     rcloneClientID,
 		ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
 		RedirectURL:  oauthutil.RedirectLocalhostURL,
@@ -130,10 +135,20 @@ var (
 		DefaultTimeoutAsync:   10 * time.Second,
 		DefaultBatchSizeAsync: 100,
 	}
+
+	exportKnownAPIFormats = map[exportAPIFormat]exportExtension{
+		"markdown": "md",
+		"html":     "html",
+	}
+	// Populated based on exportKnownAPIFormats
+	exportKnownExtensions = map[exportExtension]exportAPIFormat{}
+
+	paperExtension         = ".paper"
+	paperTemplateExtension = ".papert"
 )
 
 // Gets an oauth config with the right scopes
-func getOauthConfig(m configmap.Mapper) *oauth2.Config {
+func getOauthConfig(m configmap.Mapper) *oauthutil.Config {
 	// If not impersonating, use standard scopes
 	if impersonate, _ := m.Get("impersonate"); impersonate == "" {
 		return dropboxConfig
@@ -245,23 +260,61 @@ folders.`,
 			Help:     "Specify a different Dropbox namespace ID to use as the root for all paths.",
 			Default:  "",
 			Advanced: true,
-		}}...), defaultBatcherOptions.FsOptions("For full info see [the main docs](https://rclone.org/dropbox/#batch-mode)\n\n")...),
+		}, {
+			Name: "export_formats",
+			Help: `Comma separated list of preferred formats for exporting files
+
+Certain Dropbox files can only be accessed by exporting them to another format.
+These include Dropbox Paper documents.
+
+For each such file, rclone will choose the first format on this list that Dropbox
+considers valid. If none is valid, it will choose Dropbox's default format.
+
+Known formats include: "html", "md" (markdown)`,
+			Default:  fs.CommaSepList{"html", "md"},
+			Advanced: true,
+		}, {
+			Name:     "skip_exports",
+			Help:     "Skip exportable files in all listings.\n\nIf given, exportable files practically become invisible to rclone.",
+			Default:  false,
+			Advanced: true,
+		}, {
+			Name:    "show_all_exports",
+			Default: false,
+			Help: `Show all exportable files in listings.
+
+Adding this flag will allow all exportable files to be server side copied.
+Note that rclone doesn't add extensions to the exportable file names in this mode.
+
+Do **not** use this flag when trying to download exportable files - rclone
+will fail to download them.
+`,
+			Advanced: true,
+		},
+		}...), defaultBatcherOptions.FsOptions("For full info see [the main docs](https://rclone.org/dropbox/#batch-mode)\n\n")...),
 	})
+
+	for apiFormat, ext := range exportKnownAPIFormats {
+		exportKnownExtensions[ext] = apiFormat
+	}
 }
 
 // Options defines the configuration for this backend
 type Options struct {
-	ChunkSize     fs.SizeSuffix        `config:"chunk_size"`
-	Impersonate   string               `config:"impersonate"`
-	SharedFiles   bool                 `config:"shared_files"`
-	SharedFolders bool                 `config:"shared_folders"`
-	BatchMode     string               `config:"batch_mode"`
-	BatchSize     int                  `config:"batch_size"`
-	BatchTimeout  fs.Duration          `config:"batch_timeout"`
-	AsyncBatch    bool                 `config:"async_batch"`
-	PacerMinSleep fs.Duration          `config:"pacer_min_sleep"`
-	Enc           encoder.MultiEncoder `config:"encoding"`
-	RootNsid      string               `config:"root_namespace"`
+	ChunkSize      fs.SizeSuffix        `config:"chunk_size"`
+	Impersonate    string               `config:"impersonate"`
+	SharedFiles    bool                 `config:"shared_files"`
+	SharedFolders  bool                 `config:"shared_folders"`
+	BatchMode      string               `config:"batch_mode"`
+	BatchSize      int                  `config:"batch_size"`
+	BatchTimeout   fs.Duration          `config:"batch_timeout"`
+	AsyncBatch     bool                 `config:"async_batch"`
+	PacerMinSleep  fs.Duration          `config:"pacer_min_sleep"`
+	Enc            encoder.MultiEncoder `config:"encoding"`
+	RootNsid       string               `config:"root_namespace"`
+	ExportFormats  fs.CommaSepList      `config:"export_formats"`
+	SkipExports    bool                 `config:"skip_exports"`
+	ShowAllExports bool                 `config:"show_all_exports"`
 }
 
 // Fs represents a remote dropbox server
@@ -281,8 +334,18 @@ type Fs struct {
 	pacer          *fs.Pacer      // To pace the API calls
 	ns             string         // The namespace we are using or "" for none
 	batcher        *batcher.Batcher[*files.UploadSessionFinishArg, *files.FileMetadata]
+	exportExts     []exportExtension
 }
 
+type exportType int
+
+const (
+	notExport        exportType = iota // a regular file
+	exportHide                         // should be hidden
+	exportListOnly                     // listable, but can't export
+	exportExportable                   // can export
+)
+
 // Object describes a dropbox object
 //
 // Dropbox Objects always have full metadata
@@ -294,6 +357,9 @@ type Object struct {
 	bytes   int64     // size of the object
 	modTime time.Time // time it was last modified
 	hash    string    // content_hash of the object
+
+	exportType      exportType
+	exportAPIFormat exportAPIFormat
 }
 
 // Name of the remote (as passed into NewFs)
@@ -316,32 +382,46 @@ func (f *Fs) Features() *fs.Features {
 	return f.features
 }
 
-// shouldRetry returns a boolean as to whether this err deserves to be
-// retried.  It returns the err as a convenience
-func shouldRetry(ctx context.Context, err error) (bool, error) {
-	if fserrors.ContextError(ctx, &err) {
-		return false, err
-	}
+// Some specific errors which should be excluded from retries
+func shouldRetryExclude(ctx context.Context, err error) (bool, error) {
 	if err == nil {
 		return false, err
 	}
-	errString := err.Error()
+	if fserrors.ContextError(ctx, &err) {
+		return false, err
+	}
 	// First check for specific errors
+	//
+	// These come back from the SDK in a whole host of different
+	// error types, but there doesn't seem to be a consistent way
+	// of reading the error cause, so here we just check using the
+	// error string which isn't perfect but does the job.
+	errString := err.Error()
 	if strings.Contains(errString, "insufficient_space") {
 		return false, fserrors.FatalError(err)
 	} else if strings.Contains(errString, "malformed_path") {
 		return false, fserrors.NoRetryError(err)
 	}
+	return true, err
+}
+
+// shouldRetry returns a boolean as to whether this err deserves to be
+// retried.  It returns the err as a convenience
+func shouldRetry(ctx context.Context, err error) (bool, error) {
+	if retry, err := shouldRetryExclude(ctx, err); !retry {
+		return retry, err
+	}
 	// Then handle any official Retry-After header from Dropbox's SDK
 	switch e := err.(type) {
 	case auth.RateLimitAPIError:
 		if e.RateLimitError.RetryAfter > 0 {
-			fs.Logf(errString, "Too many requests or write operations. Trying again in %d seconds.", e.RateLimitError.RetryAfter)
+			fs.Logf(nil, "Error %v. Too many requests or write operations. Trying again in %d seconds.", err, e.RateLimitError.RetryAfter)
 			err = pacer.RetryAfterError(err, time.Duration(e.RateLimitError.RetryAfter)*time.Second)
 		}
 		return true, err
 	}
 	// Keep old behavior for backward compatibility
+	errString := err.Error()
 	if strings.Contains(errString, "too_many_write_operations") || strings.Contains(errString, "too_many_requests") || errString == "" {
 		return true, err
 	}
@@ -386,7 +466,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	oldToken = strings.TrimSpace(oldToken)
 	if ok && oldToken != "" && oldToken[0] != '{' {
 		fs.Infof(name, "Converting token to new format")
-		newToken := fmt.Sprintf(`{"access_token":"%s","token_type":"bearer","expiry":"0001-01-01T00:00:00Z"}`, oldToken)
+		newToken := fmt.Sprintf(`{"access_token":%q,"token_type":"bearer","expiry":"0001-01-01T00:00:00Z"}`, oldToken)
 		err := config.SetValueAndSave(name, config.ConfigToken, newToken)
 		if err != nil {
 			return nil, fmt.Errorf("NewFS convert token: %w", err)
@@ -420,6 +500,14 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		HeaderGenerator: f.headerGenerator,
 	}
 
+	for _, e := range opt.ExportFormats {
+		ext := exportExtension(e)
+		if exportKnownExtensions[ext] == "" {
+			return nil, fmt.Errorf("dropbox: unknown export format '%s'", e)
+		}
+		f.exportExts = append(f.exportExts, ext)
+	}
+
 	// unauthorized config for endpoints that fail with auth
 	ucfg := dropbox.Config{
 		LogLevel: dropbox.LogOff, // logging in the SDK: LogOff, LogDebug, LogInfo
@@ -572,38 +660,126 @@ func (f *Fs) setRoot(root string) {
 	}
 }
 
+type getMetadataResult struct {
+	entry    files.IsMetadata
+	notFound bool
+	err      error
+}
+
 // getMetadata gets the metadata for a file or directory
-func (f *Fs) getMetadata(ctx context.Context, objPath string) (entry files.IsMetadata, notFound bool, err error) {
-	err = f.pacer.Call(func() (bool, error) {
-		entry, err = f.srv.GetMetadata(&files.GetMetadataArg{
+func (f *Fs) getMetadata(ctx context.Context, objPath string) (res getMetadataResult) {
+	res.err = f.pacer.Call(func() (bool, error) {
+		res.entry, res.err = f.srv.GetMetadata(&files.GetMetadataArg{
 			Path: f.opt.Enc.FromStandardPath(objPath),
 		})
-		return shouldRetry(ctx, err)
+		return shouldRetry(ctx, res.err)
 	})
-	if err != nil {
-		switch e := err.(type) {
+	if res.err != nil {
+		switch e := res.err.(type) {
 		case files.GetMetadataAPIError:
 			if e.EndpointError != nil && e.EndpointError.Path != nil && e.EndpointError.Path.Tag == files.LookupErrorNotFound {
-				notFound = true
-				err = nil
+				res.notFound = true
+				res.err = nil
 			}
 		}
 	}
 	return
 }
 
-// getFileMetadata gets the metadata for a file
-func (f *Fs) getFileMetadata(ctx context.Context, filePath string) (fileInfo *files.FileMetadata, err error) {
-	entry, notFound, err := f.getMetadata(ctx, filePath)
-	if err != nil {
-		return nil, err
+// Get metadata such that the result would be exported with the given extension
+// Return a channel that will eventually receive the metadata
+func (f *Fs) getMetadataForExt(ctx context.Context, filePath string, wantExportExtension exportExtension) chan getMetadataResult {
+	ch := make(chan getMetadataResult, 1)
+	wantDownloadable := (wantExportExtension == "")
+	go func() {
+		defer close(ch)
+
+		res := f.getMetadata(ctx, filePath)
+		info, ok := res.entry.(*files.FileMetadata)
+		if !ok { // Can't check anything about file, just return what we have
+			ch <- res
+			return
+		}
+
+		// Return notFound if downloadability or extension doesn't match
+		if wantDownloadable != info.IsDownloadable {
+			ch <- getMetadataResult{notFound: true}
+			return
+		}
+		if !info.IsDownloadable {
+			_, ext := f.chooseExportFormat(info)
+			if ext != wantExportExtension {
+				ch <- getMetadataResult{notFound: true}
+				return
+			}
+		}
+
+		// Return our real result or error
+		ch <- res
+	}()
+	return ch
+}
+
+// For a given rclone-path, figure out what the Dropbox-path may be, in order of preference.
+// Multiple paths might be plausible, due to export path munging.
+func (f *Fs) possibleMetadatas(ctx context.Context, filePath string) (ret []<-chan getMetadataResult) {
+	ret = []<-chan getMetadataResult{}
+
+	// Prefer an exact match
+	ret = append(ret, f.getMetadataForExt(ctx, filePath, ""))
+
+	// Check if we're plausibly an export path, otherwise we're done
+	if f.opt.SkipExports || f.opt.ShowAllExports {
+		return
 	}
-	if notFound {
+	dotted := path.Ext(filePath)
+	if dotted == "" {
+		return
+	}
+	ext := exportExtension(dotted[1:])
+	if exportKnownExtensions[ext] == "" {
+		return
+	}
+
+	// We might be an export path! Try all possibilities
+	base := strings.TrimSuffix(filePath, dotted)
+
+	// `foo.papert.md` will only come from `foo.papert`. Never check something like `foo.papert.paper`
+	if strings.HasSuffix(base, paperTemplateExtension) {
+		ret = append(ret, f.getMetadataForExt(ctx, base, ext))
+		return
+	}
+
+	// Otherwise, try both `foo.md` coming from `foo`, or from `foo.paper`
+	ret = append(ret, f.getMetadataForExt(ctx, base, ext))
+	ret = append(ret, f.getMetadataForExt(ctx, base+paperExtension, ext))
+	return
+}
+
+// getFileMetadata gets the metadata for a file
+func (f *Fs) getFileMetadata(ctx context.Context, filePath string) (*files.FileMetadata, error) {
+	var res getMetadataResult
+
+	// Try all possible metadatas
+	possibleMetadatas := f.possibleMetadatas(ctx, filePath)
+	for _, ch := range possibleMetadatas {
+		res = <-ch
+
+		if res.err != nil {
+			return nil, res.err
+		}
+		if !res.notFound {
+			break
+		}
+	}
+
+	if res.notFound {
 		return nil, fs.ErrorObjectNotFound
 	}
-	fileInfo, ok := entry.(*files.FileMetadata)
+
+	fileInfo, ok := res.entry.(*files.FileMetadata)
 	if !ok {
-		if _, ok = entry.(*files.FolderMetadata); ok {
+		if _, ok = res.entry.(*files.FolderMetadata); ok {
 			return nil, fs.ErrorIsDir
 		}
 		return nil, fs.ErrorNotAFile
@@ -612,15 +788,15 @@ func (f *Fs) getFileMetadata(ctx context.Context, filePath string) (fileInfo *fi
 }
 
 // getDirMetadata gets the metadata for a directory
-func (f *Fs) getDirMetadata(ctx context.Context, dirPath string) (dirInfo *files.FolderMetadata, err error) {
-	entry, notFound, err := f.getMetadata(ctx, dirPath)
-	if err != nil {
-		return nil, err
+func (f *Fs) getDirMetadata(ctx context.Context, dirPath string) (*files.FolderMetadata, error) {
+	res := f.getMetadata(ctx, dirPath)
+	if res.err != nil {
+		return nil, res.err
 	}
-	if notFound {
+	if res.notFound {
 		return nil, fs.ErrorDirNotFound
 	}
-	dirInfo, ok := entry.(*files.FolderMetadata)
+	dirInfo, ok := res.entry.(*files.FolderMetadata)
 	if !ok {
 		return nil, fs.ErrorIsFile
 	}
@@ -820,16 +996,15 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 	var res *files.ListFolderResult
 	for {
 		if !started {
-			arg := files.ListFolderArg{
-				Path:      f.opt.Enc.FromStandardPath(root),
-				Recursive: false,
-				Limit:     1000,
-			}
+			arg := files.NewListFolderArg(f.opt.Enc.FromStandardPath(root))
+			arg.Recursive = false
+			arg.Limit = 1000
+
 			if root == "/" {
 				arg.Path = "" // Specify root folder as empty string
 			}
 			err = f.pacer.Call(func() (bool, error) {
-				res, err = f.srv.ListFolder(&arg)
+				res, err = f.srv.ListFolder(arg)
 				return shouldRetry(ctx, err)
 			})
 			if err != nil {
@@ -882,7 +1057,9 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 				if err != nil {
 					return nil, err
 				}
-				entries = append(entries, o)
+				if o.(*Object).exportType.listable() {
+					entries = append(entries, o)
+				}
 			}
 		}
 		if !res.HasMore {
@@ -968,16 +1145,14 @@ func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) (err error)
 		}
 
 		// check directory empty
-		arg := files.ListFolderArg{
-			Path:      encRoot,
-			Recursive: false,
-		}
+		arg := files.NewListFolderArg(encRoot)
+		arg.Recursive = false
 		if root == "/" {
 			arg.Path = "" // Specify root folder as empty string
 		}
 		var res *files.ListFolderResult
 		err = f.pacer.Call(func() (bool, error) {
-			res, err = f.srv.ListFolder(&arg)
+			res, err = f.srv.ListFolder(arg)
 			return shouldRetry(ctx, err)
 		})
 		if err != nil {
@@ -1020,13 +1195,20 @@ func (f *Fs) Precision() time.Duration {
 // Will only be called if src.Fs().Name() == f.Name()
 //
 // If it isn't possible then return fs.ErrorCantCopy
-func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object, error) {
+func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (dst fs.Object, err error) {
 	srcObj, ok := src.(*Object)
 	if !ok {
 		fs.Debugf(src, "Can't copy - not same remote type")
 		return nil, fs.ErrorCantCopy
 	}
 
+	// Find and remove existing object
+	cleanup, err := operations.RemoveExisting(ctx, f, remote, "server side copy")
+	if err != nil {
+		return nil, err
+	}
+	defer cleanup(&err)
+
 	// Temporary Object under construction
 	dstObj := &Object{
 		fs:     f,
@@ -1040,7 +1222,6 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 			ToPath:   f.opt.Enc.FromStandardPath(dstObj.remotePath()),
 		},
 	}
-	var err error
 	var result *files.RelocationResult
 	err = f.pacer.Call(func() (bool, error) {
 		result, err = f.srv.CopyV2(&arg)
@@ -1152,6 +1333,16 @@ func (f *Fs) PublicLink(ctx context.Context, remote string, expire fs.Duration,
 		return shouldRetry(ctx, err)
 	})
 
+	if err != nil && createArg.Settings.Expires != nil && strings.Contains(err.Error(), sharing.SharedLinkSettingsErrorNotAuthorized) {
+		// Some plans can't create links with expiry
+		fs.Debugf(absPath, "can't create link with expiry, trying without")
+		createArg.Settings.Expires = nil
+		err = f.pacer.Call(func() (bool, error) {
+			linkRes, err = f.sharing.CreateSharedLinkWithSettings(&createArg)
+			return shouldRetry(ctx, err)
+		})
+	}
+
 	if err != nil && strings.Contains(err.Error(),
 		sharing.CreateSharedLinkWithSettingsErrorSharedLinkAlreadyExists) {
 		fs.Debugf(absPath, "has a public link already, attempting to retrieve it")
@@ -1316,16 +1507,14 @@ func (f *Fs) changeNotifyCursor(ctx context.Context) (cursor string, err error)
 	var startCursor *files.ListFolderGetLatestCursorResult
 
 	err = f.pacer.Call(func() (bool, error) {
-		arg := files.ListFolderArg{
-			Path:      f.opt.Enc.FromStandardPath(f.slashRoot),
-			Recursive: true,
-		}
+		arg := files.NewListFolderArg(f.opt.Enc.FromStandardPath(f.slashRoot))
+		arg.Recursive = true
 
 		if arg.Path == "/" {
 			arg.Path = ""
 		}
 
-		startCursor, err = f.srv.ListFolderGetLatestCursor(&arg)
+		startCursor, err = f.srv.ListFolderGetLatestCursor(arg)
 
 		return shouldRetry(ctx, err)
 	})
@@ -1429,8 +1618,50 @@ func (f *Fs) Shutdown(ctx context.Context) error {
 	return nil
 }
 
+func (f *Fs) chooseExportFormat(info *files.FileMetadata) (exportAPIFormat, exportExtension) {
+	// Find API export formats Dropbox supports for this file
+	// Sometimes Dropbox lists a format in ExportAs but not ExportOptions, so check both
+	ei := info.ExportInfo
+	dropboxFormatStrings := append([]string{ei.ExportAs}, ei.ExportOptions...)
+
+	// Find which extensions these correspond to
+	exportExtensions := map[exportExtension]exportAPIFormat{}
+	var dropboxPreferredAPIFormat exportAPIFormat
+	var dropboxPreferredExtension exportExtension
+	for _, format := range dropboxFormatStrings {
+		apiFormat := exportAPIFormat(format)
+		// Only consider formats we know about
+		if ext, ok := exportKnownAPIFormats[apiFormat]; ok {
+			if dropboxPreferredAPIFormat == "" {
+				dropboxPreferredAPIFormat = apiFormat
+				dropboxPreferredExtension = ext
+			}
+			exportExtensions[ext] = apiFormat
+		}
+	}
+
+	// See if the user picked a valid extension
+	for _, ext := range f.exportExts {
+		if apiFormat, ok := exportExtensions[ext]; ok {
+			return apiFormat, ext
+		}
+	}
+
+	// If no matches, prefer the first valid format Dropbox lists
+	return dropboxPreferredAPIFormat, dropboxPreferredExtension
+}
+
 // ------------------------------------------------------------
 
+func (et exportType) listable() bool {
+	return et != exportHide
+}
+
+// something we should _try_ to export
+func (et exportType) exportable() bool {
+	return et == exportExportable || et == exportListOnly
+}
+
 // Fs returns the parent Fs
 func (o *Object) Fs() fs.Info {
 	return o.fs
@@ -1474,6 +1705,32 @@ func (o *Object) Size() int64 {
 	return o.bytes
 }
 
+func (o *Object) setMetadataForExport(info *files.FileMetadata) {
+	o.bytes = -1
+	o.hash = ""
+
+	if o.fs.opt.SkipExports {
+		o.exportType = exportHide
+		return
+	}
+	if o.fs.opt.ShowAllExports {
+		o.exportType = exportListOnly
+		return
+	}
+
+	var exportExt exportExtension
+	o.exportAPIFormat, exportExt = o.fs.chooseExportFormat(info)
+	if o.exportAPIFormat == "" {
+		o.exportType = exportHide
+	} else {
+		o.exportType = exportExportable
+		// get rid of any paper extension, if present
+		o.remote = strings.TrimSuffix(o.remote, paperExtension)
+		// add the export extension
+		o.remote += "." + string(exportExt)
+	}
+}
+
 // setMetadataFromEntry sets the fs data from a files.FileMetadata
 //
 // This isn't a complete set of metadata and has an inaccurate date
@@ -1482,6 +1739,10 @@ func (o *Object) setMetadataFromEntry(info *files.FileMetadata) error {
 	o.bytes = int64(info.Size)
 	o.modTime = info.ClientModified
 	o.hash = info.ContentHash
+
+	if !info.IsDownloadable {
+		o.setMetadataForExport(info)
+	}
 	return nil
 }
 
@@ -1545,6 +1806,27 @@ func (o *Object) Storable() bool {
 	return true
 }
 
+func (o *Object) export(ctx context.Context) (in io.ReadCloser, err error) {
+	if o.exportType == exportListOnly || o.exportAPIFormat == "" {
+		fs.Debugf(o.remote, "No export format found")
+		return nil, fs.ErrorObjectNotFound
+	}
+
+	arg := files.ExportArg{Path: o.id, ExportFormat: string(o.exportAPIFormat)}
+	var exportResult *files.ExportResult
+	err = o.fs.pacer.Call(func() (bool, error) {
+		exportResult, in, err = o.fs.srv.Export(&arg)
+		return shouldRetry(ctx, err)
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	o.bytes = int64(exportResult.ExportMetadata.Size)
+	o.hash = exportResult.ExportMetadata.ExportHash
+	return
+}
+
 // Open an object for read
 func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.ReadCloser, err error) {
 	if o.fs.opt.SharedFiles {
@@ -1564,6 +1846,10 @@ func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.Read
 		return
 	}
 
+	if o.exportType.exportable() {
+		return o.export(ctx)
+	}
+
 	fs.FixRangeOption(options, o.bytes)
 	headers := fs.OpenOptionHeaders(options)
 	arg := files.DownloadArg{
@@ -1692,14 +1978,10 @@ func (o *Object) uploadChunked(ctx context.Context, in0 io.Reader, commitInfo *f
 
 	err = o.fs.pacer.Call(func() (bool, error) {
 		entry, err = o.fs.srv.UploadSessionFinish(args, nil)
-		// If error is insufficient space then don't retry
-		if e, ok := err.(files.UploadSessionFinishAPIError); ok {
-			if e.EndpointError != nil && e.EndpointError.Path != nil && e.EndpointError.Path.Tag == files.WriteErrorInsufficientSpace {
-				err = fserrors.NoRetryError(err)
-				return false, err
-			}
+		if retry, err := shouldRetryExclude(ctx, err); !retry {
+			return retry, err
 		}
-		// after the first chunk is uploaded, we retry everything
+		// after the first chunk is uploaded, we retry everything except the excluded errors
 		return err != nil, err
 	})
 	if err != nil {

backend/dropbox/dropbox_internal_test.go

@@ -1,9 +1,16 @@
 package dropbox
 
 import (
+	"context"
+	"io"
+	"strings"
 	"testing"
 
+	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox"
+	"github.com/dropbox/dropbox-sdk-go-unofficial/v6/dropbox/files"
+	"github.com/rclone/rclone/fstest/fstests"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestInternalCheckPathLength(t *testing.T) {
@@ -42,3 +49,54 @@ func TestInternalCheckPathLength(t *testing.T) {
 		assert.Equal(t, test.ok, err == nil, test.in)
 	}
 }
+
+func (f *Fs) importPaperForTest(t *testing.T) {
+	content := `# test doc
+
+Lorem ipsum __dolor__ sit amet
+[link](http://google.com)
+`
+
+	arg := files.PaperCreateArg{
+		Path:         f.slashRootSlash + "export.paper",
+		ImportFormat: &files.ImportFormat{Tagged: dropbox.Tagged{Tag: files.ImportFormatMarkdown}},
+	}
+	var err error
+	err = f.pacer.Call(func() (bool, error) {
+		reader := strings.NewReader(content)
+		_, err = f.srv.PaperCreate(&arg, reader)
+		return shouldRetry(context.Background(), err)
+	})
+	require.NoError(t, err)
+}
+
+func (f *Fs) InternalTestPaperExport(t *testing.T) {
+	ctx := context.Background()
+	f.importPaperForTest(t)
+
+	f.exportExts = []exportExtension{"html"}
+
+	obj, err := f.NewObject(ctx, "export.html")
+	require.NoError(t, err)
+
+	rc, err := obj.Open(ctx)
+	require.NoError(t, err)
+	defer func() { require.NoError(t, rc.Close()) }()
+
+	buf, err := io.ReadAll(rc)
+	require.NoError(t, err)
+	text := string(buf)
+
+	for _, excerpt := range []string{
+		"Lorem ipsum",
+		"<b>dolor</b>",
+		`href="http://google.com"`,
+	} {
+		require.Contains(t, text, excerpt)
+	}
+}
+func (f *Fs) InternalTest(t *testing.T) {
+	t.Run("PaperExport", f.InternalTestPaperExport)
+}
+
+var _ fstests.InternalTester = (*Fs)(nil)

backend/fichier/api.go

@@ -61,7 +61,7 @@ func shouldRetry(ctx context.Context, resp *http.Response, err error) (bool, err
 			return false, err // No such user
 		case 186:
 			return false, err // IP blocked?
-		case 374:
+		case 374, 412: // Flood detected seems to be #412 now
 			fs.Debugf(nil, "Sleeping for 30 seconds due to: %v", err)
 			time.Sleep(30 * time.Second)
 		default:

backend/fichier/fichier.go

@@ -441,23 +441,28 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		fs.Debugf(src, "Can't move - not same remote type")
 		return nil, fs.ErrorCantMove
 	}
+	srcFs := srcObj.fs
 
 	// Find current directory ID
-	_, currentDirectoryID, err := f.dirCache.FindPath(ctx, remote, false)
+	srcLeaf, srcDirectoryID, err := srcFs.dirCache.FindPath(ctx, srcObj.remote, false)
 	if err != nil {
 		return nil, err
 	}
 
 	// Create temporary object
-	dstObj, leaf, directoryID, err := f.createObject(ctx, remote)
+	dstObj, dstLeaf, dstDirectoryID, err := f.createObject(ctx, remote)
 	if err != nil {
 		return nil, err
 	}
 
 	// If it is in the correct directory, just rename it
 	var url string
-	if currentDirectoryID == directoryID {
-		resp, err := f.renameFile(ctx, srcObj.file.URL, leaf)
+	if srcDirectoryID == dstDirectoryID {
+		// No rename needed
+		if srcLeaf == dstLeaf {
+			return src, nil
+		}
+		resp, err := f.renameFile(ctx, srcObj.file.URL, dstLeaf)
 		if err != nil {
 			return nil, fmt.Errorf("couldn't rename file: %w", err)
 		}
@@ -466,11 +471,16 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		}
 		url = resp.URLs[0].URL
 	} else {
-		folderID, err := strconv.Atoi(directoryID)
+		dstFolderID, err := strconv.Atoi(dstDirectoryID)
 		if err != nil {
 			return nil, err
 		}
-		resp, err := f.moveFile(ctx, srcObj.file.URL, folderID, leaf)
+		rename := dstLeaf
+		// No rename needed
+		if srcLeaf == dstLeaf {
+			rename = ""
+		}
+		resp, err := f.moveFile(ctx, srcObj.file.URL, dstFolderID, rename)
 		if err != nil {
 			return nil, fmt.Errorf("couldn't move file: %w", err)
 		}

backend/filefabric/api/types.go

@@ -216,11 +216,11 @@ var ItemFields = mustFields(Item{})
 
 // fields returns the JSON fields in use by opt as a | separated
 // string.
-func fields(opt interface{}) (pipeTags string, err error) {
+func fields(opt any) (pipeTags string, err error) {
 	var tags []string
 	def := reflect.ValueOf(opt)
 	defType := def.Type()
-	for i := 0; i < def.NumField(); i++ {
+	for i := range def.NumField() {
 		field := defType.Field(i)
 		tag, ok := field.Tag.Lookup("json")
 		if !ok {
@@ -239,7 +239,7 @@ func fields(opt interface{}) (pipeTags string, err error) {
 
 // mustFields returns the JSON fields in use by opt as a | separated
 // string. It panics on failure.
-func mustFields(opt interface{}) string {
+func mustFields(opt any) string {
 	tags, err := fields(opt)
 	if err != nil {
 		panic(err)
@@ -351,12 +351,12 @@ type SpaceInfo struct {
 // DeleteResponse is returned from doDeleteFile
 type DeleteResponse struct {
 	Status
-	Deleted        []string      `json:"deleted"`
-	Errors         []interface{} `json:"errors"`
-	ID             string        `json:"fi_id"`
-	BackgroundTask int           `json:"backgroundtask"`
-	UsSize         string        `json:"us_size"`
-	PaSize         string        `json:"pa_size"`
+	Deleted        []string `json:"deleted"`
+	Errors         []any    `json:"errors"`
+	ID             string   `json:"fi_id"`
+	BackgroundTask int      `json:"backgroundtask"`
+	UsSize         string   `json:"us_size"`
+	PaSize         string   `json:"pa_size"`
 	//SpaceInfo      SpaceInfo     `json:"spaceinfo"`
 }
 

backend/filefabric/filefabric.go

@@ -371,7 +371,7 @@ func (f *Fs) getToken(ctx context.Context) (token string, err error) {
 }
 
 // params for rpc
-type params map[string]interface{}
+type params map[string]any
 
 // rpc calls the rpc.php method of the SME file fabric
 //

backend/filelu/api/types.go

@@ -0,0 +1,81 @@
+// Package api defines types for interacting with the FileLu API.
+package api
+
+import "encoding/json"
+
+// CreateFolderResponse represents the response for creating a folder.
+type CreateFolderResponse struct {
+	Status int    `json:"status"`
+	Msg    string `json:"msg"`
+	Result struct {
+		FldID interface{} `json:"fld_id"`
+	} `json:"result"`
+}
+
+// DeleteFolderResponse represents the response for deleting a folder.
+type DeleteFolderResponse struct {
+	Status int    `json:"status"`
+	Msg    string `json:"msg"`
+}
+
+// FolderListResponse represents the response for listing folders.
+type FolderListResponse struct {
+	Status int    `json:"status"`
+	Msg    string `json:"msg"`
+	Result struct {
+		Files []struct {
+			Name     string      `json:"name"`
+			FldID    json.Number `json:"fld_id"`
+			Path     string      `json:"path"`
+			FileCode string      `json:"file_code"`
+			Size     int64       `json:"size"`
+		} `json:"files"`
+		Folders []struct {
+			Name  string      `json:"name"`
+			FldID json.Number `json:"fld_id"`
+			Path  string      `json:"path"`
+		} `json:"folders"`
+	} `json:"result"`
+}
+
+// FileDirectLinkResponse represents the response for a direct link to a file.
+type FileDirectLinkResponse struct {
+	Status int    `json:"status"`
+	Msg    string `json:"msg"`
+	Result struct {
+		URL  string `json:"url"`
+		Size int64  `json:"size"`
+	} `json:"result"`
+}
+
+// FileInfoResponse represents the response for file information.
+type FileInfoResponse struct {
+	Status int    `json:"status"`
+	Msg    string `json:"msg"`
+	Result []struct {
+		Size     string `json:"size"`
+		Name     string `json:"name"`
+		FileCode string `json:"filecode"`
+		Hash     string `json:"hash"`
+		Status   int    `json:"status"`
+	} `json:"result"`
+}
+
+// DeleteFileResponse represents the response for deleting a file.
+type DeleteFileResponse struct {
+	Status int    `json:"status"`
+	Msg    string `json:"msg"`
+}
+
+// AccountInfoResponse represents the response for account information.
+type AccountInfoResponse struct {
+	Status int    `json:"status"` // HTTP status code of the response.
+	Msg    string `json:"msg"`    // Message describing the response.
+	Result struct {
+		PremiumExpire string `json:"premium_expire"` // Expiration date of premium access.
+		Email         string `json:"email"`          // User's email address.
+		UType         string `json:"utype"`          // User type (e.g., premium or free).
+		Storage       string `json:"storage"`        // Total storage available to the user.
+		StorageUsed   string `json:"storage_used"`   // Amount of storage used.
+	} `json:"result"` // Nested result structure containing account details.
+}

backend/filelu/filelu.go

@@ -0,0 +1,366 @@
+// Package filelu provides an interface to the FileLu storage system.
+package filelu
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path"
+	"strings"
+	"time"
+
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/config"
+	"github.com/rclone/rclone/fs/config/configmap"
+	"github.com/rclone/rclone/fs/config/configstruct"
+	"github.com/rclone/rclone/fs/fshttp"
+	"github.com/rclone/rclone/lib/encoder"
+	"github.com/rclone/rclone/lib/pacer"
+	"github.com/rclone/rclone/lib/rest"
+)
+
+// Register the backend with Rclone
+func init() {
+	fs.Register(&fs.RegInfo{
+		Name:        "filelu",
+		Description: "FileLu Cloud Storage",
+		NewFs:       NewFs,
+		Options: []fs.Option{{
+			Name:      "key",
+			Help:      "Your FileLu Rclone key from My Account",
+			Required:  true,
+			Sensitive: true,
+		},
+			{
+				Name:     config.ConfigEncoding,
+				Help:     config.ConfigEncodingHelp,
+				Advanced: true,
+				Default: (encoder.Base | //  Slash,LtGt,DoubleQuote,Question,Asterisk,Pipe,Hash,Percent,BackSlash,Del,Ctl,RightSpace,InvalidUtf8,Dot
+					encoder.EncodeSlash |
+					encoder.EncodeLtGt |
+					encoder.EncodeExclamation |
+					encoder.EncodeDoubleQuote |
+					encoder.EncodeSingleQuote |
+					encoder.EncodeBackQuote |
+					encoder.EncodeQuestion |
+					encoder.EncodeDollar |
+					encoder.EncodeColon |
+					encoder.EncodeAsterisk |
+					encoder.EncodePipe |
+					encoder.EncodeHash |
+					encoder.EncodePercent |
+					encoder.EncodeBackSlash |
+					encoder.EncodeCrLf |
+					encoder.EncodeDel |
+					encoder.EncodeCtl |
+					encoder.EncodeLeftSpace |
+					encoder.EncodeLeftPeriod |
+					encoder.EncodeLeftTilde |
+					encoder.EncodeLeftCrLfHtVt |
+					encoder.EncodeRightPeriod |
+					encoder.EncodeRightCrLfHtVt |
+					encoder.EncodeSquareBracket |
+					encoder.EncodeSemicolon |
+					encoder.EncodeRightSpace |
+					encoder.EncodeInvalidUtf8 |
+					encoder.EncodeDot),
+			},
+		}})
+}
+
+// Options defines the configuration for the FileLu backend
+type Options struct {
+	Key string               `config:"key"`
+	Enc encoder.MultiEncoder `config:"encoding"`
+}
+
+// Fs represents the FileLu file system
+type Fs struct {
+	name       string
+	root       string
+	opt        Options
+	features   *fs.Features
+	endpoint   string
+	pacer      *pacer.Pacer
+	srv        *rest.Client
+	client     *http.Client
+	targetFile string
+}
+
+// NewFs creates a new Fs object for FileLu
+func NewFs(ctx context.Context, name string, root string, m configmap.Mapper) (fs.Fs, error) {
+	opt := new(Options)
+	err := configstruct.Set(m, opt)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse config: %w", err)
+	}
+
+	if opt.Key == "" {
+		return nil, fmt.Errorf("FileLu Rclone Key is required")
+	}
+
+	client := fshttp.NewClient(ctx)
+
+	if strings.TrimSpace(root) == "" {
+		root = ""
+	}
+	root = strings.Trim(root, "/")
+
+	filename := ""
+
+	f := &Fs{
+		name:       name,
+		opt:        *opt,
+		endpoint:   "https://filelu.com/rclone",
+		client:     client,
+		srv:        rest.NewClient(client).SetRoot("https://filelu.com/rclone"),
+		pacer:      pacer.New(),
+		targetFile: filename,
+		root:       root,
+	}
+
+	f.features = (&fs.Features{
+		CanHaveEmptyDirectories: true,
+		WriteMetadata:           false,
+		SlowHash:                true,
+	}).Fill(ctx, f)
+
+	rootContainer, rootDirectory := rootSplit(f.root)
+	if rootContainer != "" && rootDirectory != "" {
+		// Check to see if the (container,directory) is actually an existing file
+		oldRoot := f.root
+		newRoot, leaf := path.Split(oldRoot)
+		f.root = strings.Trim(newRoot, "/")
+		_, err := f.NewObject(ctx, leaf)
+		if err != nil {
+			if err == fs.ErrorObjectNotFound || err == fs.ErrorNotAFile {
+				// File doesn't exist or is a directory so return old f
+				f.root = strings.Trim(oldRoot, "/")
+				return f, nil
+			}
+			return nil, err
+		}
+		// return an error with an fs which points to the parent
+		return f, fs.ErrorIsFile
+	}
+
+	return f, nil
+}
+
+// Mkdir to create directory on remote server.
+func (f *Fs) Mkdir(ctx context.Context, dir string) error {
+	fullPath := path.Clean(f.root + "/" + dir)
+	_, err := f.createFolder(ctx, fullPath)
+	return err
+}
+
+// About provides usage statistics for the remote
+func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
+	accountInfo, err := f.getAccountInfo(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	totalStorage, err := parseStorageToBytes(accountInfo.Result.Storage)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse total storage: %w", err)
+	}
+
+	usedStorage, err := parseStorageToBytes(accountInfo.Result.StorageUsed)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse used storage: %w", err)
+	}
+
+	return &fs.Usage{
+		Total: fs.NewUsageValue(totalStorage), // Total bytes available
+		Used:  fs.NewUsageValue(usedStorage),  // Total bytes used
+		Free:  fs.NewUsageValue(totalStorage - usedStorage),
+	}, nil
+}
+
+// Purge deletes the directory and all its contents
+func (f *Fs) Purge(ctx context.Context, dir string) error {
+	fullPath := path.Join(f.root, dir)
+	if fullPath != "" {
+		fullPath = "/" + strings.Trim(fullPath, "/")
+	}
+	return f.deleteFolder(ctx, fullPath)
+}
+
+// List returns a list of files and folders
+// List returns a list of files and folders for the given directory
+func (f *Fs) List(ctx context.Context, dir string) (fs.DirEntries, error) {
+	// Compose full path for API call
+	fullPath := path.Join(f.root, dir)
+	fullPath = "/" + strings.Trim(fullPath, "/")
+	if fullPath == "/" {
+		fullPath = ""
+	}
+
+	var entries fs.DirEntries
+	result, err := f.getFolderList(ctx, fullPath)
+	if err != nil {
+		return nil, err
+	}
+
+	fldMap := map[string]bool{}
+	for _, folder := range result.Result.Folders {
+		fldMap[folder.FldID.String()] = true
+		if f.root == "" && dir == "" && strings.Contains(folder.Path, "/") {
+			continue
+		}
+
+		paths := strings.Split(folder.Path, fullPath+"/")
+		remote := paths[0]
+		if len(paths) > 1 {
+			remote = paths[1]
+		}
+
+		if strings.Contains(remote, "/") {
+			continue
+		}
+
+		pathsWithoutRoot := strings.Split(folder.Path, "/"+f.root+"/")
+		remotePathWithoutRoot := pathsWithoutRoot[0]
+		if len(pathsWithoutRoot) > 1 {
+			remotePathWithoutRoot = pathsWithoutRoot[1]
+		}
+		remotePathWithoutRoot = strings.TrimPrefix(remotePathWithoutRoot, "/")
+		entries = append(entries, fs.NewDir(remotePathWithoutRoot, time.Now()))
+	}
+	for _, file := range result.Result.Files {
+		if _, ok := fldMap[file.FldID.String()]; ok {
+			continue
+		}
+		remote := path.Join(dir, file.Name)
+		// trim leading slashes
+		remote = strings.TrimPrefix(remote, "/")
+		obj := &Object{
+			fs:      f,
+			remote:  remote,
+			size:    file.Size,
+			modTime: time.Now(),
+		}
+		entries = append(entries, obj)
+	}
+	return entries, nil
+}
+
+// Put uploads a file directly to the destination folder in the FileLu storage system.
+func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
+	if src.Size() == 0 {
+		return nil, fs.ErrorCantUploadEmptyFiles
+	}
+
+	err := f.uploadFile(ctx, in, src.Remote())
+	if err != nil {
+		return nil, err
+	}
+
+	newObject := &Object{
+		fs:      f,
+		remote:  src.Remote(),
+		size:    src.Size(),
+		modTime: src.ModTime(ctx),
+	}
+	fs.Infof(f, "Put: Successfully uploaded new file %q", src.Remote())
+	return newObject, nil
+}
+
+// Move moves the file to the specified location
+func (f *Fs) Move(ctx context.Context, src fs.Object, destinationPath string) (fs.Object, error) {
+
+	if strings.HasPrefix(destinationPath, "/") || strings.Contains(destinationPath, ":\\") {
+		dir := path.Dir(destinationPath)
+		if err := os.MkdirAll(dir, 0755); err != nil {
+			return nil, fmt.Errorf("failed to create destination directory: %w", err)
+		}
+
+		reader, err := src.Open(ctx)
+		if err != nil {
+			return nil, fmt.Errorf("failed to open source file: %w", err)
+		}
+		defer func() {
+			if err := reader.Close(); err != nil {
+				fs.Logf(nil, "Failed to close file body: %v", err)
+			}
+		}()
+
+		dest, err := os.Create(destinationPath)
+		if err != nil {
+			return nil, fmt.Errorf("failed to create destination file: %w", err)
+		}
+		defer func() {
+			if err := dest.Close(); err != nil {
+				fs.Logf(nil, "Failed to close file body: %v", err)
+			}
+		}()
+
+		if _, err := io.Copy(dest, reader); err != nil {
+			return nil, fmt.Errorf("failed to copy file content: %w", err)
+		}
+
+		if err := src.Remove(ctx); err != nil {
+			return nil, fmt.Errorf("failed to remove source file: %w", err)
+		}
+
+		return nil, nil
+	}
+
+	reader, err := src.Open(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open source object: %w", err)
+	}
+	defer func() {
+		if err := reader.Close(); err != nil {
+			fs.Logf(nil, "Failed to close file body: %v", err)
+		}
+	}()
+
+	err = f.uploadFile(ctx, reader, destinationPath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to upload file to destination: %w", err)
+	}
+
+	if err := src.Remove(ctx); err != nil {
+		return nil, fmt.Errorf("failed to delete source file: %w", err)
+	}
+
+	return &Object{
+		fs:      f,
+		remote:  destinationPath,
+		size:    src.Size(),
+		modTime: src.ModTime(ctx),
+	}, nil
+}
+
+// Rmdir removes a directory
+func (f *Fs) Rmdir(ctx context.Context, dir string) error {
+	fullPath := path.Join(f.root, dir)
+	if fullPath != "" {
+		fullPath = "/" + strings.Trim(fullPath, "/")
+	}
+
+	// Step 1: Check if folder is empty
+	listResp, err := f.getFolderList(ctx, fullPath)
+	if err != nil {
+		return err
+	}
+	if len(listResp.Result.Files) > 0 || len(listResp.Result.Folders) > 0 {
+		return fmt.Errorf("Rmdir: directory %q is not empty", fullPath)
+	}
+
+	// Step 2: Delete the folder
+	return f.deleteFolder(ctx, fullPath)
+}
+
+// Check the interfaces are satisfied
+var (
+	_ fs.Fs      = (*Fs)(nil)
+	_ fs.Purger  = (*Fs)(nil)
+	_ fs.Abouter = (*Fs)(nil)
+	_ fs.Mover   = (*Fs)(nil)
+	_ fs.Object  = (*Object)(nil)
+)

backend/filelu/filelu_client.go

@@ -0,0 +1,324 @@
+package filelu
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"github.com/rclone/rclone/backend/filelu/api"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/fserrors"
+	"github.com/rclone/rclone/lib/rest"
+)
+
+// createFolder creates a folder at the specified path.
+func (f *Fs) createFolder(ctx context.Context, dirPath string) (*api.CreateFolderResponse, error) {
+	encodedDir := f.fromStandardPath(dirPath)
+	apiURL := fmt.Sprintf("%s/folder/create?folder_path=%s&key=%s",
+		f.endpoint,
+		url.QueryEscape(encodedDir),
+		url.QueryEscape(f.opt.Key), // assuming f.opt.Key is the correct field
+	)
+
+	req, err := http.NewRequestWithContext(ctx, "GET", apiURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	var resp *http.Response
+	result := api.CreateFolderResponse{}
+	err = f.pacer.Call(func() (bool, error) {
+		var innerErr error
+		resp, innerErr = f.client.Do(req)
+		return fserrors.ShouldRetry(innerErr), innerErr
+	})
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	defer func() {
+		if err := resp.Body.Close(); err != nil {
+			fs.Logf(nil, "Failed to close response body: %v", err)
+		}
+	}()
+
+	err = json.NewDecoder(resp.Body).Decode(&result)
+	if err != nil {
+		return nil, fmt.Errorf("error decoding response: %w", err)
+	}
+	if result.Status != 200 {
+		return nil, fmt.Errorf("error: %s", result.Msg)
+	}
+
+	fs.Infof(f, "Successfully created folder %q with ID %v", dirPath, result.Result.FldID)
+	return &result, nil
+}
+
+// getFolderList List both files and folders in a directory.
+func (f *Fs) getFolderList(ctx context.Context, path string) (*api.FolderListResponse, error) {
+	encodedDir := f.fromStandardPath(path)
+	apiURL := fmt.Sprintf("%s/folder/list?folder_path=%s&key=%s",
+		f.endpoint,
+		url.QueryEscape(encodedDir),
+		url.QueryEscape(f.opt.Key),
+	)
+
+	var body []byte
+	err := f.pacer.Call(func() (bool, error) {
+		req, err := http.NewRequestWithContext(ctx, "GET", apiURL, nil)
+		if err != nil {
+			return false, fmt.Errorf("failed to create request: %w", err)
+		}
+
+		resp, err := f.client.Do(req)
+		if err != nil {
+			return shouldRetry(err), fmt.Errorf("failed to list directory: %w", err)
+		}
+		defer func() {
+			if err := resp.Body.Close(); err != nil {
+				fs.Logf(nil, "Failed to close response body: %v", err)
+			}
+		}()
+
+		body, err = io.ReadAll(resp.Body)
+		if err != nil {
+			return false, fmt.Errorf("error reading response body: %w", err)
+		}
+
+		return shouldRetryHTTP(resp.StatusCode), nil
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	var response api.FolderListResponse
+	if err := json.NewDecoder(bytes.NewReader(body)).Decode(&response); err != nil {
+		return nil, fmt.Errorf("error decoding response: %w", err)
+	}
+	if response.Status != 200 {
+		if strings.Contains(response.Msg, "Folder not found") {
+			return nil, fs.ErrorDirNotFound
+		}
+		return nil, fmt.Errorf("API error: %s", response.Msg)
+	}
+
+	for index := range response.Result.Folders {
+		response.Result.Folders[index].Path = f.toStandardPath(response.Result.Folders[index].Path)
+	}
+
+	for index := range response.Result.Files {
+		response.Result.Files[index].Name = f.toStandardPath(response.Result.Files[index].Name)
+	}
+
+	return &response, nil
+
+}
+
+// deleteFolder deletes a folder at the specified path.
+func (f *Fs) deleteFolder(ctx context.Context, fullPath string) error {
+	fullPath = f.fromStandardPath(fullPath)
+	deleteURL := fmt.Sprintf("%s/folder/delete?folder_path=%s&key=%s",
+		f.endpoint,
+		url.QueryEscape(fullPath),
+		url.QueryEscape(f.opt.Key),
+	)
+
+	delResp := api.DeleteFolderResponse{}
+	err := f.pacer.Call(func() (bool, error) {
+		req, err := http.NewRequestWithContext(ctx, "GET", deleteURL, nil)
+		if err != nil {
+			return false, err
+		}
+		resp, err := f.client.Do(req)
+		if err != nil {
+			return fserrors.ShouldRetry(err), err
+		}
+		defer func() {
+			if err := resp.Body.Close(); err != nil {
+				fs.Logf(nil, "Failed to close response body: %v", err)
+			}
+		}()
+
+		body, err := io.ReadAll(resp.Body)
+		if err != nil {
+			return false, err
+		}
+
+		if err := json.Unmarshal(body, &delResp); err != nil {
+			return false, fmt.Errorf("error decoding delete response: %w", err)
+		}
+		if delResp.Status != 200 {
+			return false, fmt.Errorf("delete error: %s", delResp.Msg)
+		}
+		return false, nil
+	})
+	if err != nil {
+		return err
+	}
+
+	fs.Infof(f, "Rmdir: successfully deleted %q", fullPath)
+	return nil
+}
+
+// getDirectLink of file from FileLu to download.
+func (f *Fs) getDirectLink(ctx context.Context, filePath string) (string, int64, error) {
+	filePath = f.fromStandardPath(filePath)
+	apiURL := fmt.Sprintf("%s/file/direct_link?file_path=%s&key=%s",
+		f.endpoint,
+		url.QueryEscape(filePath),
+		url.QueryEscape(f.opt.Key),
+	)
+
+	result := api.FileDirectLinkResponse{}
+	err := f.pacer.Call(func() (bool, error) {
+		req, err := http.NewRequestWithContext(ctx, "GET", apiURL, nil)
+		if err != nil {
+			return false, fmt.Errorf("failed to create request: %w", err)
+		}
+
+		resp, err := f.client.Do(req)
+		if err != nil {
+			return shouldRetry(err), fmt.Errorf("failed to fetch direct link: %w", err)
+		}
+		defer func() {
+			if err := resp.Body.Close(); err != nil {
+				fs.Logf(nil, "Failed to close response body: %v", err)
+			}
+		}()
+
+		if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+			return false, fmt.Errorf("error decoding response: %w", err)
+		}
+
+		if result.Status != 200 {
+			return false, fmt.Errorf("API error: %s", result.Msg)
+		}
+
+		return shouldRetryHTTP(resp.StatusCode), nil
+	})
+	if err != nil {
+		return "", 0, err
+	}
+
+	return result.Result.URL, result.Result.Size, nil
+}
+
+// deleteFile deletes a file based on filePath
+func (f *Fs) deleteFile(ctx context.Context, filePath string) error {
+	filePath = f.fromStandardPath(filePath)
+	apiURL := fmt.Sprintf("%s/file/remove?file_path=%s&key=%s",
+		f.endpoint,
+		url.QueryEscape(filePath),
+		url.QueryEscape(f.opt.Key),
+	)
+
+	result := api.DeleteFileResponse{}
+	err := f.pacer.Call(func() (bool, error) {
+		req, err := http.NewRequestWithContext(ctx, "GET", apiURL, nil)
+		if err != nil {
+			return false, fmt.Errorf("failed to create request: %w", err)
+		}
+
+		resp, err := f.client.Do(req)
+		if err != nil {
+			return shouldRetry(err), fmt.Errorf("failed to fetch direct link: %w", err)
+		}
+		defer func() {
+			if err := resp.Body.Close(); err != nil {
+				fs.Logf(nil, "Failed to close response body: %v", err)
+			}
+		}()
+
+		if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+			return false, fmt.Errorf("error decoding response: %w", err)
+		}
+
+		if result.Status != 200 {
+			return false, fmt.Errorf("API error: %s", result.Msg)
+		}
+
+		return shouldRetryHTTP(resp.StatusCode), nil
+	})
+	return err
+}
+
+// getAccountInfo retrieves account information
+func (f *Fs) getAccountInfo(ctx context.Context) (*api.AccountInfoResponse, error) {
+	opts := rest.Opts{
+		Method: "GET",
+		Path:   "/account/info",
+		Parameters: url.Values{
+			"key": {f.opt.Key},
+		},
+	}
+
+	var result api.AccountInfoResponse
+	err := f.pacer.Call(func() (bool, error) {
+		_, callErr := f.srv.CallJSON(ctx, &opts, nil, &result)
+		return fserrors.ShouldRetry(callErr), callErr
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	if result.Status != 200 {
+		return nil, fmt.Errorf("error: %s", result.Msg)
+	}
+
+	return &result, nil
+}
+
+// getFileInfo retrieves file information based on file code
+func (f *Fs) getFileInfo(ctx context.Context, fileCode string) (*api.FileInfoResponse, error) {
+	u, _ := url.Parse(f.endpoint + "/file/info2")
+	q := u.Query()
+	q.Set("file_code", fileCode) // raw path — Go handles escaping properly here
+	q.Set("key", f.opt.Key)
+	u.RawQuery = q.Encode()
+
+	apiURL := f.endpoint + "/file/info2?" + u.RawQuery
+
+	var body []byte
+	err := f.pacer.Call(func() (bool, error) {
+		req, err := http.NewRequestWithContext(ctx, "GET", apiURL, nil)
+		if err != nil {
+			return false, fmt.Errorf("failed to create request: %w", err)
+		}
+
+		resp, err := f.client.Do(req)
+		if err != nil {
+			return shouldRetry(err), fmt.Errorf("failed to fetch file info: %w", err)
+		}
+		defer func() {
+			if err := resp.Body.Close(); err != nil {
+				fs.Logf(nil, "Failed to close response body: %v", err)
+			}
+		}()
+
+		body, err = io.ReadAll(resp.Body)
+		if err != nil {
+			return false, fmt.Errorf("error reading response body: %w", err)
+		}
+
+		return shouldRetryHTTP(resp.StatusCode), nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	result := api.FileInfoResponse{}
+
+	if err := json.NewDecoder(bytes.NewReader(body)).Decode(&result); err != nil {
+		return nil, fmt.Errorf("error decoding response: %w", err)
+	}
+
+	if result.Status != 200 || len(result.Result) == 0 {
+		return nil, fs.ErrorObjectNotFound
+	}
+
+	return &result, nil
+}

backend/filelu/filelu_file_uploader.go

@@ -0,0 +1,193 @@
+package filelu
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"net/url"
+	"path"
+	"strings"
+
+	"github.com/rclone/rclone/fs"
+)
+
+// uploadFile uploads a file to FileLu
+func (f *Fs) uploadFile(ctx context.Context, fileContent io.Reader, fileFullPath string) error {
+	directory := path.Dir(fileFullPath)
+	fileName := path.Base(fileFullPath)
+	if directory == "." {
+		directory = ""
+	}
+	destinationFolderPath := path.Join(f.root, directory)
+	if destinationFolderPath != "" {
+		destinationFolderPath = "/" + strings.Trim(destinationFolderPath, "/")
+	}
+
+	existingEntries, err := f.List(ctx, path.Dir(fileFullPath))
+	if err != nil {
+		if errors.Is(err, fs.ErrorDirNotFound) {
+			err = f.Mkdir(ctx, path.Dir(fileFullPath))
+			if err != nil {
+				return fmt.Errorf("failed to create directory: %w", err)
+			}
+		} else {
+			return fmt.Errorf("failed to list existing files: %w", err)
+		}
+	}
+
+	for _, entry := range existingEntries {
+		if entry.Remote() == fileFullPath {
+			_, ok := entry.(fs.Object)
+			if !ok {
+				continue
+			}
+
+			// If the file exists but is different, remove it
+			filePath := "/" + strings.Trim(destinationFolderPath+"/"+fileName, "/")
+			err = f.deleteFile(ctx, filePath)
+			if err != nil {
+				return fmt.Errorf("failed to delete existing file: %w", err)
+			}
+		}
+	}
+
+	uploadURL, sessID, err := f.getUploadServer(ctx)
+	if err != nil {
+		return fmt.Errorf("failed to retrieve upload server: %w", err)
+	}
+
+	// Since the fileCode isn't used, just handle the error
+	if _, err := f.uploadFileWithDestination(ctx, uploadURL, sessID, fileName, fileContent, destinationFolderPath); err != nil {
+		return fmt.Errorf("failed to upload file: %w", err)
+	}
+
+	return nil
+}
+
+// getUploadServer gets the upload server URL with proper key authentication
+func (f *Fs) getUploadServer(ctx context.Context) (string, string, error) {
+	apiURL := fmt.Sprintf("%s/upload/server?key=%s", f.endpoint, url.QueryEscape(f.opt.Key))
+
+	var result struct {
+		Status int    `json:"status"`
+		SessID string `json:"sess_id"`
+		Result string `json:"result"`
+		Msg    string `json:"msg"`
+	}
+
+	err := f.pacer.Call(func() (bool, error) {
+		req, err := http.NewRequestWithContext(ctx, "GET", apiURL, nil)
+		if err != nil {
+			return false, fmt.Errorf("failed to create request: %w", err)
+		}
+
+		resp, err := f.client.Do(req)
+		if err != nil {
+			return shouldRetry(err), fmt.Errorf("failed to get upload server: %w", err)
+		}
+		defer func() {
+			if err := resp.Body.Close(); err != nil {
+				fs.Logf(nil, "Failed to close response body: %v", err)
+			}
+		}()
+
+		if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+			return false, fmt.Errorf("error decoding response: %w", err)
+		}
+
+		if result.Status != 200 {
+			return false, fmt.Errorf("API error: %s", result.Msg)
+		}
+
+		return shouldRetryHTTP(resp.StatusCode), nil
+	})
+
+	if err != nil {
+		return "", "", err
+	}
+
+	return result.Result, result.SessID, nil
+}
+
+// uploadFileWithDestination uploads a file directly to a specified folder using file content reader.
+func (f *Fs) uploadFileWithDestination(ctx context.Context, uploadURL, sessID, fileName string, fileContent io.Reader, dirPath string) (string, error) {
+	destinationPath := f.fromStandardPath(dirPath)
+	encodedFileName := f.fromStandardPath(fileName)
+	pr, pw := io.Pipe()
+	writer := multipart.NewWriter(pw)
+	isDeletionRequired := false
+	go func() {
+		defer func() {
+			if err := pw.Close(); err != nil {
+				fs.Logf(nil, "Failed to close: %v", err)
+			}
+		}()
+		_ = writer.WriteField("sess_id", sessID)
+		_ = writer.WriteField("utype", "prem")
+		_ = writer.WriteField("fld_path", destinationPath)
+
+		part, err := writer.CreateFormFile("file_0", encodedFileName)
+		if err != nil {
+			pw.CloseWithError(fmt.Errorf("failed to create form file: %w", err))
+			return
+		}
+
+		if _, err := io.Copy(part, fileContent); err != nil {
+			isDeletionRequired = true
+			pw.CloseWithError(fmt.Errorf("failed to copy file content: %w", err))
+			return
+		}
+
+		if err := writer.Close(); err != nil {
+			pw.CloseWithError(fmt.Errorf("failed to close writer: %w", err))
+		}
+	}()
+
+	var fileCode string
+	err := f.pacer.Call(func() (bool, error) {
+		req, err := http.NewRequestWithContext(ctx, "POST", uploadURL, pr)
+		if err != nil {
+			return false, fmt.Errorf("failed to create upload request: %w", err)
+		}
+		req.Header.Set("Content-Type", writer.FormDataContentType())
+
+		resp, err := f.client.Do(req)
+		if err != nil {
+			return shouldRetry(err), fmt.Errorf("failed to send upload request: %w", err)
+		}
+		defer respBodyClose(resp.Body)
+
+		var result []struct {
+			FileCode   string `json:"file_code"`
+			FileStatus string `json:"file_status"`
+		}
+		if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+			return false, fmt.Errorf("failed to parse upload response: %w", err)
+		}
+
+		if len(result) == 0 || result[0].FileStatus != "OK" {
+			return false, fmt.Errorf("upload failed with status: %s", result[0].FileStatus)
+		}
+
+		fileCode = result[0].FileCode
+		return shouldRetryHTTP(resp.StatusCode), nil
+	})
+
+	if err != nil && isDeletionRequired {
+		// Attempt to delete the file if upload fails
+		_ = f.deleteFile(ctx, destinationPath+"/"+fileName)
+	}
+
+	return fileCode, err
+}
+
+// respBodyClose to check body response.
+func respBodyClose(responseBody io.Closer) {
+	if cerr := responseBody.Close(); cerr != nil {
+		fmt.Printf("Error closing response body: %v\n", cerr)
+	}
+}

backend/filelu/filelu_helper.go

@@ -0,0 +1,112 @@
+package filelu
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"path"
+	"strings"
+	"time"
+
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/fserrors"
+	"github.com/rclone/rclone/fs/hash"
+)
+
+// errFileNotFound represent file not found error
+var errFileNotFound error = errors.New("file not found")
+
+// getFileCode retrieves the file code for a given file path
+func (f *Fs) getFileCode(ctx context.Context, filePath string) (string, error) {
+	// Prepare parent directory
+	parentDir := path.Dir(filePath)
+
+	// Call List to get all the files
+	result, err := f.getFolderList(ctx, parentDir)
+	if err != nil {
+		return "", err
+	}
+
+	for _, file := range result.Result.Files {
+		filePathFromServer := parentDir + "/" + file.Name
+		if parentDir == "/" {
+			filePathFromServer = "/" + file.Name
+		}
+		if filePath == filePathFromServer {
+			return file.FileCode, nil
+		}
+	}
+
+	return "", errFileNotFound
+}
+
+// Features returns the optional features of this Fs
+func (f *Fs) Features() *fs.Features {
+	return f.features
+}
+
+func (f *Fs) fromStandardPath(remote string) string {
+	return f.opt.Enc.FromStandardPath(remote)
+}
+
+func (f *Fs) toStandardPath(remote string) string {
+	return f.opt.Enc.ToStandardPath(remote)
+}
+
+// Hashes returns an empty hash set, indicating no hash support
+func (f *Fs) Hashes() hash.Set {
+	return hash.NewHashSet() // Properly creates an empty hash set
+}
+
+// Name returns the remote name
+func (f *Fs) Name() string {
+	return f.name
+}
+
+// Root returns the root path
+func (f *Fs) Root() string {
+	return f.root
+}
+
+// Precision returns the precision of the remote
+func (f *Fs) Precision() time.Duration {
+	return fs.ModTimeNotSupported
+}
+
+func (f *Fs) String() string {
+	return fmt.Sprintf("FileLu root '%s'", f.root)
+}
+
+// isFileCode checks if a string looks like a file code
+func isFileCode(s string) bool {
+	if len(s) != 12 {
+		return false
+	}
+	for _, c := range s {
+		if !((c >= 'a' && c <= 'z') || (c >= '0' && c <= '9')) {
+			return false
+		}
+	}
+	return true
+}
+
+func shouldRetry(err error) bool {
+	return fserrors.ShouldRetry(err)
+}
+
+func shouldRetryHTTP(code int) bool {
+	return code == 429 || code >= 500
+}
+
+func rootSplit(absPath string) (bucket, bucketPath string) {
+	// No bucket
+	if absPath == "" {
+		return "", ""
+	}
+	slash := strings.IndexRune(absPath, '/')
+	// Bucket but no path
+	if slash < 0 {
+		return absPath, ""
+	}
+	return absPath[:slash], absPath[slash+1:]
+}

backend/filelu/filelu_object.go

@@ -0,0 +1,259 @@
+package filelu
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"path"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/hash"
+)
+
+// Object describes a FileLu object
+type Object struct {
+	fs      *Fs
+	remote  string
+	size    int64
+	modTime time.Time
+}
+
+// NewObject creates a new Object for the given remote path
+func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error) {
+	var filePath string
+	filePath = path.Join(f.root, remote)
+	filePath = "/" + strings.Trim(filePath, "/")
+
+	// Get File code
+	fileCode, err := f.getFileCode(ctx, filePath)
+	if err != nil {
+		return nil, fs.ErrorObjectNotFound
+	}
+
+	// Get File info
+	fileInfos, err := f.getFileInfo(ctx, fileCode)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get file info: %w", err)
+	}
+
+	fileInfo := fileInfos.Result[0]
+	size, _ := strconv.ParseInt(fileInfo.Size, 10, 64)
+
+	returnedRemote := remote
+	return &Object{
+		fs:      f,
+		remote:  returnedRemote,
+		size:    size,
+		modTime: time.Now(),
+	}, nil
+}
+
+// Open opens the object for reading
+func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (io.ReadCloser, error) {
+	filePath := path.Join(o.fs.root, o.remote)
+	// Get direct link
+	directLink, size, err := o.fs.getDirectLink(ctx, filePath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get direct link: %w", err)
+	}
+
+	o.size = size
+
+	// Offset and Count for range download
+	var offset int64
+	var count int64
+	fs.FixRangeOption(options, o.size)
+	for _, option := range options {
+		switch x := option.(type) {
+		case *fs.RangeOption:
+			offset, count = x.Decode(o.size)
+			if count < 0 {
+				count = o.size - offset
+			}
+		case *fs.SeekOption:
+			offset = x.Offset
+			count = o.size
+		default:
+			if option.Mandatory() {
+				fs.Logf(o, "Unsupported mandatory option: %v", option)
+			}
+		}
+	}
+
+	var reader io.ReadCloser
+	err = o.fs.pacer.Call(func() (bool, error) {
+		req, err := http.NewRequestWithContext(ctx, "GET", directLink, nil)
+		if err != nil {
+			return false, fmt.Errorf("failed to create download request: %w", err)
+		}
+
+		resp, err := o.fs.client.Do(req)
+		if err != nil {
+			return shouldRetry(err), fmt.Errorf("failed to download file: %w", err)
+		}
+
+		if resp.StatusCode != http.StatusOK {
+			defer func() {
+				if err := resp.Body.Close(); err != nil {
+					fs.Logf(nil, "Failed to close response body: %v", err)
+				}
+			}()
+			return false, fmt.Errorf("failed to download file: HTTP %d", resp.StatusCode)
+		}
+
+		// Wrap the response body to handle offset and count
+		currentContents, err := io.ReadAll(resp.Body)
+		if err != nil {
+			return false, fmt.Errorf("failed to read response body: %w", err)
+		}
+
+		if offset > 0 {
+			if offset > int64(len(currentContents)) {
+				return false, fmt.Errorf("offset %d exceeds file size %d", offset, len(currentContents))
+			}
+			currentContents = currentContents[offset:]
+		}
+		if count > 0 && count < int64(len(currentContents)) {
+			currentContents = currentContents[:count]
+		}
+		reader = io.NopCloser(bytes.NewReader(currentContents))
+
+		return false, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return reader, nil
+}
+
+// Update updates the object with new data
+func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
+	if src.Size() <= 0 {
+		return fs.ErrorCantUploadEmptyFiles
+	}
+
+	err := o.fs.uploadFile(ctx, in, o.remote)
+	if err != nil {
+		return fmt.Errorf("failed to upload file: %w", err)
+	}
+	o.size = src.Size()
+	return nil
+}
+
+// Remove deletes the object from FileLu
+func (o *Object) Remove(ctx context.Context) error {
+	fullPath := "/" + strings.Trim(path.Join(o.fs.root, o.remote), "/")
+
+	err := o.fs.deleteFile(ctx, fullPath)
+	if err != nil {
+		return err
+	}
+	fs.Infof(o.fs, "Successfully deleted file: %s", fullPath)
+	return nil
+}
+
+// Hash returns the MD5 hash of an object
+func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error) {
+	if t != hash.MD5 {
+		return "", hash.ErrUnsupported
+	}
+
+	var fileCode string
+	if isFileCode(o.fs.root) {
+		fileCode = o.fs.root
+	} else {
+		matches := regexp.MustCompile(`\((.*?)\)`).FindAllStringSubmatch(o.remote, -1)
+		for _, match := range matches {
+			if len(match) > 1 && len(match[1]) == 12 {
+				fileCode = match[1]
+				break
+			}
+		}
+	}
+	if fileCode == "" {
+		return "", fmt.Errorf("no valid file code found in the remote path")
+	}
+
+	apiURL := fmt.Sprintf("%s/file/info?file_code=%s&key=%s",
+		o.fs.endpoint, url.QueryEscape(fileCode), url.QueryEscape(o.fs.opt.Key))
+
+	var result struct {
+		Status int    `json:"status"`
+		Msg    string `json:"msg"`
+		Result []struct {
+			Hash string `json:"hash"`
+		} `json:"result"`
+	}
+	err := o.fs.pacer.Call(func() (bool, error) {
+		req, err := http.NewRequestWithContext(ctx, "GET", apiURL, nil)
+		if err != nil {
+			return false, err
+		}
+		resp, err := o.fs.client.Do(req)
+		if err != nil {
+			return shouldRetry(err), err
+		}
+		defer func() {
+			if err := resp.Body.Close(); err != nil {
+				fs.Logf(nil, "Failed to close response body: %v", err)
+			}
+		}()
+
+		if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+			return false, err
+		}
+		return shouldRetryHTTP(resp.StatusCode), nil
+	})
+	if err != nil {
+		return "", err
+	}
+	if result.Status != 200 || len(result.Result) == 0 {
+		return "", fmt.Errorf("error: unable to fetch hash: %s", result.Msg)
+	}
+
+	return result.Result[0].Hash, nil
+}
+
+// String returns a string representation of the object
+func (o *Object) String() string {
+	return o.remote
+}
+
+// Fs returns the parent Fs
+func (o *Object) Fs() fs.Info {
+	return o.fs
+}
+
+// Remote returns the remote path
+func (o *Object) Remote() string {
+	return o.remote
+}
+
+// Size returns the size of the object
+func (o *Object) Size() int64 {
+	return o.size
+}
+
+// ModTime returns the modification time of the object
+func (o *Object) ModTime(ctx context.Context) time.Time {
+	return o.modTime
+}
+
+// SetModTime sets the modification time of the object
+func (o *Object) SetModTime(ctx context.Context, modTime time.Time) error {
+	return fs.ErrorCantSetModTime
+}
+
+// Storable indicates whether the object is storable
+func (o *Object) Storable() bool {
+	return true
+}

backend/filelu/filelu_test.go

@@ -0,0 +1,16 @@
+package filelu_test
+
+import (
+	"testing"
+
+	"github.com/rclone/rclone/fstest/fstests"
+)
+
+// TestIntegration runs integration tests for the FileLu backend
+func TestIntegration(t *testing.T) {
+	fstests.Run(t, &fstests.Opt{
+		RemoteName:      "TestFileLu:",
+		NilObject:       nil,
+		SkipInvalidUTF8: true,
+	})
+}

backend/filelu/utils.go

@@ -0,0 +1,15 @@
+package filelu
+
+import (
+	"fmt"
+)
+
+// parseStorageToBytes converts a storage string (e.g., "10") to bytes
+func parseStorageToBytes(storage string) (int64, error) {
+	var gb float64
+	_, err := fmt.Sscanf(storage, "%f", &gb)
+	if err != nil {
+		return 0, fmt.Errorf("failed to parse storage: %w", err)
+	}
+	return int64(gb * 1024 * 1024 * 1024), nil
+}

backend/filescom/filescom.go

@@ -0,0 +1,900 @@
+// Package filescom provides an interface to the Files.com
+// object storage system.
+package filescom
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"path"
+	"slices"
+	"strings"
+	"time"
+
+	files_sdk "github.com/Files-com/files-sdk-go/v3"
+	"github.com/Files-com/files-sdk-go/v3/bundle"
+	"github.com/Files-com/files-sdk-go/v3/file"
+	file_migration "github.com/Files-com/files-sdk-go/v3/filemigration"
+	"github.com/Files-com/files-sdk-go/v3/folder"
+	"github.com/Files-com/files-sdk-go/v3/session"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/config"
+	"github.com/rclone/rclone/fs/config/configmap"
+	"github.com/rclone/rclone/fs/config/configstruct"
+	"github.com/rclone/rclone/fs/config/obscure"
+	"github.com/rclone/rclone/fs/fserrors"
+	"github.com/rclone/rclone/fs/fshttp"
+	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/lib/encoder"
+	"github.com/rclone/rclone/lib/pacer"
+)
+
+/*
+Run of rclone info
+stringNeedsEscaping = []rune{
+        '/', '\x00'
+}
+maxFileLength = 512 // for 1 byte unicode characters
+maxFileLength = 512 // for 2 byte unicode characters
+maxFileLength = 512 // for 3 byte unicode characters
+maxFileLength = 512 // for 4 byte unicode characters
+canWriteUnnormalized = true
+canReadUnnormalized   = true
+canReadRenormalized   = true
+canStream = true
+*/
+
+const (
+	minSleep      = 10 * time.Millisecond
+	maxSleep      = 2 * time.Second
+	decayConstant = 2 // bigger for slower decay, exponential
+
+	folderNotEmpty = "processing-failure/folder-not-empty"
+)
+
+// Register with Fs
+func init() {
+	fs.Register(&fs.RegInfo{
+		Name:        "filescom",
+		Description: "Files.com",
+		NewFs:       NewFs,
+		Options: []fs.Option{
+			{
+				Name: "site",
+				Help: "Your site subdomain (e.g. mysite) or custom domain (e.g. myfiles.customdomain.com).",
+			}, {
+				Name: "username",
+				Help: "The username used to authenticate with Files.com.",
+			}, {
+				Name:       "password",
+				Help:       "The password used to authenticate with Files.com.",
+				IsPassword: true,
+			}, {
+				Name:      "api_key",
+				Help:      "The API key used to authenticate with Files.com.",
+				Advanced:  true,
+				Sensitive: true,
+			}, {
+				Name:     config.ConfigEncoding,
+				Help:     config.ConfigEncodingHelp,
+				Advanced: true,
+				Default: (encoder.Display |
+					encoder.EncodeBackSlash |
+					encoder.EncodeRightSpace |
+					encoder.EncodeRightCrLfHtVt |
+					encoder.EncodeInvalidUtf8),
+			}},
+	})
+}
+
+// Options defines the configuration for this backend
+type Options struct {
+	Site     string               `config:"site"`
+	Username string               `config:"username"`
+	Password string               `config:"password"`
+	APIKey   string               `config:"api_key"`
+	Enc      encoder.MultiEncoder `config:"encoding"`
+}
+
+// Fs represents a remote files.com server
+type Fs struct {
+	name            string                 // name of this remote
+	root            string                 // the path we are working on
+	opt             Options                // parsed options
+	features        *fs.Features           // optional features
+	fileClient      *file.Client           // the connection to the file API
+	folderClient    *folder.Client         // the connection to the folder API
+	migrationClient *file_migration.Client // the connection to the file migration API
+	bundleClient    *bundle.Client         // the connection to the bundle API
+	pacer           *fs.Pacer              // pacer for API calls
+}
+
+// Object describes a files object
+//
+// Will definitely have info but maybe not meta
+type Object struct {
+	fs       *Fs       // what this object is part of
+	remote   string    // The remote path
+	size     int64     // size of the object
+	crc32    string    // CRC32 of the object content
+	md5      string    // MD5 of the object content
+	mimeType string    // Content-Type of the object
+	modTime  time.Time // modification time of the object
+}
+
+// ------------------------------------------------------------
+
+// Name of the remote (as passed into NewFs)
+func (f *Fs) Name() string {
+	return f.name
+}
+
+// Root of the remote (as passed into NewFs)
+func (f *Fs) Root() string {
+	return f.root
+}
+
+// String converts this Fs to a string
+func (f *Fs) String() string {
+	return fmt.Sprintf("files root '%s'", f.root)
+}
+
+// Features returns the optional features of this Fs
+func (f *Fs) Features() *fs.Features {
+	return f.features
+}
+
+// Encode remote and turn it into an absolute path in the share
+func (f *Fs) absPath(remote string) string {
+	return f.opt.Enc.FromStandardPath(path.Join(f.root, remote))
+}
+
+// retryErrorCodes is a slice of error codes that we will retry
+var retryErrorCodes = []int{
+	429, // Too Many Requests.
+	500, // Internal Server Error
+	502, // Bad Gateway
+	503, // Service Unavailable
+	504, // Gateway Timeout
+	509, // Bandwidth Limit Exceeded
+}
+
+// shouldRetry returns a boolean as to whether this err deserves to be
+// retried.  It returns the err as a convenience
+func shouldRetry(ctx context.Context, err error) (bool, error) {
+	if fserrors.ContextError(ctx, &err) {
+		return false, err
+	}
+
+	if apiErr, ok := err.(files_sdk.ResponseError); ok {
+		if slices.Contains(retryErrorCodes, apiErr.HttpCode) {
+			fs.Debugf(nil, "Retrying API error %v", err)
+			return true, err
+		}
+	}
+
+	return fserrors.ShouldRetry(err), err
+}
+
+// readMetaDataForPath reads the metadata from the path
+func (f *Fs) readMetaDataForPath(ctx context.Context, path string) (info *files_sdk.File, err error) {
+	params := files_sdk.FileFindParams{
+		Path: f.absPath(path),
+	}
+
+	var file files_sdk.File
+	err = f.pacer.Call(func() (bool, error) {
+		file, err = f.fileClient.Find(params, files_sdk.WithContext(ctx))
+		return shouldRetry(ctx, err)
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &file, nil
+}
+
+// NewFs constructs an Fs from the path, container:path
+func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, error) {
+	// Parse config into Options struct
+	opt := new(Options)
+	err := configstruct.Set(m, opt)
+	if err != nil {
+		return nil, err
+	}
+
+	root = strings.Trim(root, "/")
+
+	config, err := newClientConfig(ctx, opt)
+	if err != nil {
+		return nil, err
+	}
+
+	f := &Fs{
+		name:            name,
+		root:            root,
+		opt:             *opt,
+		fileClient:      &file.Client{Config: config},
+		folderClient:    &folder.Client{Config: config},
+		migrationClient: &file_migration.Client{Config: config},
+		bundleClient:    &bundle.Client{Config: config},
+		pacer:           fs.NewPacer(ctx, pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
+	}
+	f.features = (&fs.Features{
+		CaseInsensitive:          true,
+		CanHaveEmptyDirectories:  true,
+		ReadMimeType:             true,
+		DirModTimeUpdatesOnWrite: true,
+	}).Fill(ctx, f)
+
+	if f.root != "" {
+		info, err := f.readMetaDataForPath(ctx, "")
+		if err == nil && !info.IsDir() {
+			f.root = path.Dir(f.root)
+			if f.root == "." {
+				f.root = ""
+			}
+			return f, fs.ErrorIsFile
+		}
+	}
+
+	return f, err
+}
+
+func newClientConfig(ctx context.Context, opt *Options) (config files_sdk.Config, err error) {
+	if opt.Site != "" {
+		if strings.Contains(opt.Site, ".") {
+			config.EndpointOverride = opt.Site
+		} else {
+			config.Subdomain = opt.Site
+		}
+
+		_, err = url.ParseRequestURI(config.Endpoint())
+		if err != nil {
+			err = fmt.Errorf("invalid domain or subdomain: %v", opt.Site)
+			return
+		}
+	}
+
+	config = config.Init().SetCustomClient(fshttp.NewClient(ctx))
+
+	if opt.APIKey != "" {
+		config.APIKey = opt.APIKey
+		return
+	}
+
+	if opt.Username == "" {
+		err = errors.New("username not found")
+		return
+	}
+	if opt.Password == "" {
+		err = errors.New("password not found")
+		return
+	}
+	opt.Password, err = obscure.Reveal(opt.Password)
+	if err != nil {
+		return
+	}
+
+	sessionClient := session.Client{Config: config}
+	params := files_sdk.SessionCreateParams{
+		Username: opt.Username,
+		Password: opt.Password,
+	}
+
+	thisSession, err := sessionClient.Create(params, files_sdk.WithContext(ctx))
+	if err != nil {
+		err = fmt.Errorf("couldn't create session: %w", err)
+		return
+	}
+
+	config.SessionId = thisSession.Id
+	return
+}
+
+// Return an Object from a path
+//
+// If it can't be found it returns the error fs.ErrorObjectNotFound.
+func (f *Fs) newObjectWithInfo(ctx context.Context, remote string, file *files_sdk.File) (fs.Object, error) {
+	o := &Object{
+		fs:     f,
+		remote: remote,
+	}
+	var err error
+	if file != nil {
+		err = o.setMetaData(file)
+	} else {
+		err = o.readMetaData(ctx) // reads info and meta, returning an error
+	}
+	if err != nil {
+		return nil, err
+	}
+	return o, nil
+}
+
+// NewObject finds the Object at remote.  If it can't be found
+// it returns the error fs.ErrorObjectNotFound.
+func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error) {
+	return f.newObjectWithInfo(ctx, remote, nil)
+}
+
+// List the objects and directories in dir into entries.  The
+// entries can be returned in any order but should be for a
+// complete directory.
+//
+// dir should be "" to list the root, and should not have
+// trailing slashes.
+//
+// This should return ErrDirNotFound if the directory isn't
+// found.
+func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error) {
+	var it *folder.Iter
+	params := files_sdk.FolderListForParams{
+		Path: f.absPath(dir),
+	}
+
+	err = f.pacer.Call(func() (bool, error) {
+		it, err = f.folderClient.ListFor(params, files_sdk.WithContext(ctx))
+		return shouldRetry(ctx, err)
+	})
+	if err != nil {
+		return nil, fmt.Errorf("couldn't list files: %w", err)
+	}
+
+	for it.Next() {
+		item := ptr(it.File())
+		remote := f.opt.Enc.ToStandardPath(item.DisplayName)
+		remote = path.Join(dir, remote)
+		if remote == dir {
+			continue
+		}
+
+		if item.IsDir() {
+			d := fs.NewDir(remote, item.ModTime())
+			entries = append(entries, d)
+		} else {
+			o, err := f.newObjectWithInfo(ctx, remote, item)
+			if err != nil {
+				return nil, err
+			}
+			entries = append(entries, o)
+		}
+	}
+	err = it.Err()
+	if files_sdk.IsNotExist(err) {
+		return nil, fs.ErrorDirNotFound
+	}
+	return
+}
+
+// Creates from the parameters passed in a half finished Object which
+// must have setMetaData called on it
+//
+// Returns the object and error.
+//
+// Used to create new objects
+func (f *Fs) createObject(ctx context.Context, remote string) (o *Object, err error) {
+	// Create the directory for the object if it doesn't exist
+	err = f.mkParentDir(ctx, remote)
+	if err != nil {
+		return
+	}
+	// Temporary Object under construction
+	o = &Object{
+		fs:     f,
+		remote: remote,
+	}
+	return o, nil
+}
+
+// Put the object
+//
+// Copy the reader in to the new object which is returned.
+//
+// The new object may have been created if an error is returned
+func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
+	// Temporary Object under construction
+	fs := &Object{
+		fs:     f,
+		remote: src.Remote(),
+	}
+	return fs, fs.Update(ctx, in, src, options...)
+}
+
+// PutStream uploads to the remote path with the modTime given of indeterminate size
+func (f *Fs) PutStream(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
+	return f.Put(ctx, in, src, options...)
+}
+
+func (f *Fs) mkdir(ctx context.Context, path string) error {
+	if path == "" || path == "." {
+		return nil
+	}
+
+	params := files_sdk.FolderCreateParams{
+		Path:         path,
+		MkdirParents: ptr(true),
+	}
+
+	err := f.pacer.Call(func() (bool, error) {
+		_, err := f.folderClient.Create(params, files_sdk.WithContext(ctx))
+		return shouldRetry(ctx, err)
+	})
+	if files_sdk.IsExist(err) {
+		return nil
+	}
+	return err
+}
+
+// Make the parent directory of remote
+func (f *Fs) mkParentDir(ctx context.Context, remote string) error {
+	return f.mkdir(ctx, path.Dir(f.absPath(remote)))
+}
+
+// Mkdir creates the container if it doesn't exist
+func (f *Fs) Mkdir(ctx context.Context, dir string) error {
+	return f.mkdir(ctx, f.absPath(dir))
+}
+
+// DirSetModTime sets the directory modtime for dir
+func (f *Fs) DirSetModTime(ctx context.Context, dir string, modTime time.Time) error {
+	o := Object{
+		fs:     f,
+		remote: dir,
+	}
+	return o.SetModTime(ctx, modTime)
+}
+
+// purgeCheck removes the root directory, if check is set then it
+// refuses to do so if it has anything in
+func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
+	path := f.absPath(dir)
+	if path == "" || path == "." {
+		return errors.New("can't purge root directory")
+	}
+
+	params := files_sdk.FileDeleteParams{
+		Path:      path,
+		Recursive: ptr(!check),
+	}
+
+	err := f.pacer.Call(func() (bool, error) {
+		err := f.fileClient.Delete(params, files_sdk.WithContext(ctx))
+		// Allow for eventual consistency deletion of child objects.
+		if isFolderNotEmpty(err) {
+			return true, err
+		}
+		return shouldRetry(ctx, err)
+	})
+	if err != nil {
+		if files_sdk.IsNotExist(err) {
+			return fs.ErrorDirNotFound
+		} else if isFolderNotEmpty(err) {
+			return fs.ErrorDirectoryNotEmpty
+		}
+
+		return fmt.Errorf("rmdir failed: %w", err)
+	}
+	return nil
+}
+
+// Rmdir deletes the root folder
+//
+// Returns an error if it isn't empty
+func (f *Fs) Rmdir(ctx context.Context, dir string) error {
+	return f.purgeCheck(ctx, dir, true)
+}
+
+// Precision return the precision of this Fs
+func (f *Fs) Precision() time.Duration {
+	return time.Second
+}
+
+// Copy src to this remote using server-side copy operations.
+//
+// This is stored with the remote path given.
+//
+// It returns the destination Object and a possible error.
+//
+// Will only be called if src.Fs().Name() == f.Name()
+//
+// If it isn't possible then return fs.ErrorCantCopy
+func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (dstObj fs.Object, err error) {
+	srcObj, ok := src.(*Object)
+	if !ok {
+		fs.Debugf(src, "Can't copy - not same remote type")
+		return nil, fs.ErrorCantCopy
+	}
+	err = srcObj.readMetaData(ctx)
+	if err != nil {
+		return
+	}
+
+	srcPath := srcObj.fs.absPath(srcObj.remote)
+	dstPath := f.absPath(remote)
+	if strings.EqualFold(srcPath, dstPath) {
+		return nil, fmt.Errorf("can't copy %q -> %q as are same name when lowercase", srcPath, dstPath)
+	}
+
+	// Create temporary object
+	dstObj, err = f.createObject(ctx, remote)
+	if err != nil {
+		return
+	}
+
+	// Copy the object
+	params := files_sdk.FileCopyParams{
+		Path:        srcPath,
+		Destination: dstPath,
+		Overwrite:   ptr(true),
+	}
+
+	var action files_sdk.FileAction
+	err = f.pacer.Call(func() (bool, error) {
+		action, err = f.fileClient.Copy(params, files_sdk.WithContext(ctx))
+		return shouldRetry(ctx, err)
+	})
+	if err != nil {
+		return
+	}
+
+	err = f.waitForAction(ctx, action, "copy")
+	if err != nil {
+		return
+	}
+
+	err = dstObj.SetModTime(ctx, srcObj.modTime)
+	return
+}
+
+// Purge deletes all the files and the container
+//
+// Optional interface: Only implement this if you have a way of
+// deleting all the files quicker than just running Remove() on the
+// result of List()
+func (f *Fs) Purge(ctx context.Context, dir string) error {
+	return f.purgeCheck(ctx, dir, false)
+}
+
+// move a file or folder
+func (f *Fs) move(ctx context.Context, src *Fs, srcRemote string, dstRemote string) (info *files_sdk.File, err error) {
+	// Move the object
+	params := files_sdk.FileMoveParams{
+		Path:        src.absPath(srcRemote),
+		Destination: f.absPath(dstRemote),
+	}
+
+	var action files_sdk.FileAction
+	err = f.pacer.Call(func() (bool, error) {
+		action, err = f.fileClient.Move(params, files_sdk.WithContext(ctx))
+		return shouldRetry(ctx, err)
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	err = f.waitForAction(ctx, action, "move")
+	if err != nil {
+		return nil, err
+	}
+
+	info, err = f.readMetaDataForPath(ctx, dstRemote)
+	return
+}
+
+func (f *Fs) waitForAction(ctx context.Context, action files_sdk.FileAction, operation string) (err error) {
+	var migration files_sdk.FileMigration
+	err = f.pacer.Call(func() (bool, error) {
+		migration, err = f.migrationClient.Wait(action, func(migration files_sdk.FileMigration) {
+			// noop
+		}, files_sdk.WithContext(ctx))
+		return shouldRetry(ctx, err)
+	})
+	if err == nil && migration.Status != "completed" {
+		return fmt.Errorf("%v did not complete successfully: %v", operation, migration.Status)
+	}
+	return
+}
+
+// Move src to this remote using server-side move operations.
+//
+// This is stored with the remote path given.
+//
+// It returns the destination Object and a possible error.
+//
+// Will only be called if src.Fs().Name() == f.Name()
+//
+// If it isn't possible then return fs.ErrorCantMove
+func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object, error) {
+	srcObj, ok := src.(*Object)
+	if !ok {
+		fs.Debugf(src, "Can't move - not same remote type")
+		return nil, fs.ErrorCantMove
+	}
+
+	// Create temporary object
+	dstObj, err := f.createObject(ctx, remote)
+	if err != nil {
+		return nil, err
+	}
+
+	// Do the move
+	info, err := f.move(ctx, srcObj.fs, srcObj.remote, dstObj.remote)
+	if err != nil {
+		return nil, err
+	}
+
+	err = dstObj.setMetaData(info)
+	if err != nil {
+		return nil, err
+	}
+	return dstObj, nil
+}
+
+// DirMove moves src, srcRemote to this remote at dstRemote
+// using server-side move operations.
+//
+// Will only be called if src.Fs().Name() == f.Name()
+//
+// If it isn't possible then return fs.ErrorCantDirMove
+//
+// If destination exists then return fs.ErrorDirExists
+func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string) (err error) {
+	srcFs, ok := src.(*Fs)
+	if !ok {
+		fs.Debugf(srcFs, "Can't move directory - not same remote type")
+		return fs.ErrorCantDirMove
+	}
+
+	// Check if destination exists
+	_, err = f.readMetaDataForPath(ctx, dstRemote)
+	if err == nil {
+		return fs.ErrorDirExists
+	}
+
+	// Create temporary object
+	dstObj, err := f.createObject(ctx, dstRemote)
+	if err != nil {
+		return
+	}
+
+	// Do the move
+	_, err = f.move(ctx, srcFs, srcRemote, dstObj.remote)
+	return
+}
+
+// PublicLink adds a "readable by anyone with link" permission on the given file or folder.
+func (f *Fs) PublicLink(ctx context.Context, remote string, expire fs.Duration, unlink bool) (url string, err error) {
+	params := files_sdk.BundleCreateParams{
+		Paths: []string{f.absPath(remote)},
+	}
+	if expire < fs.DurationOff {
+		params.ExpiresAt = ptr(time.Now().Add(time.Duration(expire)))
+	}
+
+	var bundle files_sdk.Bundle
+	err = f.pacer.Call(func() (bool, error) {
+		bundle, err = f.bundleClient.Create(params, files_sdk.WithContext(ctx))
+		return shouldRetry(ctx, err)
+	})
+
+	url = bundle.Url
+	return
+}
+
+// Hashes returns the supported hash sets.
+func (f *Fs) Hashes() hash.Set {
+	return hash.NewHashSet(hash.CRC32, hash.MD5)
+}
+
+// ------------------------------------------------------------
+
+// Fs returns the parent Fs
+func (o *Object) Fs() fs.Info {
+	return o.fs
+}
+
+// Return a string version
+func (o *Object) String() string {
+	if o == nil {
+		return "<nil>"
+	}
+	return o.remote
+}
+
+// Remote returns the remote path
+func (o *Object) Remote() string {
+	return o.remote
+}
+
+// Hash returns the MD5 of an object returning a lowercase hex string
+func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error) {
+	switch t {
+	case hash.CRC32:
+		if o.crc32 == "" {
+			return "", nil
+		}
+		return fmt.Sprintf("%08s", o.crc32), nil
+	case hash.MD5:
+		return o.md5, nil
+	}
+	return "", hash.ErrUnsupported
+}
+
+// Size returns the size of an object in bytes
+func (o *Object) Size() int64 {
+	return o.size
+}
+
+// setMetaData sets the metadata from info
+func (o *Object) setMetaData(file *files_sdk.File) error {
+	o.modTime = file.ModTime()
+
+	if !file.IsDir() {
+		o.size = file.Size
+		o.crc32 = file.Crc32
+		o.md5 = file.Md5
+		o.mimeType = file.MimeType
+	}
+
+	return nil
+}
+
+// readMetaData gets the metadata if it hasn't already been fetched
+//
+// it also sets the info
+func (o *Object) readMetaData(ctx context.Context) (err error) {
+	file, err := o.fs.readMetaDataForPath(ctx, o.remote)
+	if err != nil {
+		if files_sdk.IsNotExist(err) {
+			return fs.ErrorObjectNotFound
+		}
+		return err
+	}
+	if file.IsDir() {
+		return fs.ErrorIsDir
+	}
+	return o.setMetaData(file)
+}
+
+// ModTime returns the modification time of the object
+//
+// It attempts to read the objects mtime and if that isn't present the
+// LastModified returned in the http headers
+func (o *Object) ModTime(ctx context.Context) time.Time {
+	return o.modTime
+}
+
+// SetModTime sets the modification time of the local fs object
+func (o *Object) SetModTime(ctx context.Context, modTime time.Time) (err error) {
+	params := files_sdk.FileUpdateParams{
+		Path:          o.fs.absPath(o.remote),
+		ProvidedMtime: &modTime,
+	}
+
+	var file files_sdk.File
+	err = o.fs.pacer.Call(func() (bool, error) {
+		file, err = o.fs.fileClient.Update(params, files_sdk.WithContext(ctx))
+		return shouldRetry(ctx, err)
+	})
+	if err != nil {
+		return err
+	}
+	return o.setMetaData(&file)
+}
+
+// Storable returns a boolean showing whether this object storable
+func (o *Object) Storable() bool {
+	return true
+}
+
+// Open an object for read
+func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.ReadCloser, err error) {
+	// Offset and Count for range download
+	var offset, count int64
+	fs.FixRangeOption(options, o.size)
+	for _, option := range options {
+		switch x := option.(type) {
+		case *fs.RangeOption:
+			offset, count = x.Decode(o.size)
+			if count < 0 {
+				count = o.size - offset
+			}
+		case *fs.SeekOption:
+			offset = x.Offset
+			count = o.size - offset
+		default:
+			if option.Mandatory() {
+				fs.Logf(o, "Unsupported mandatory option: %v", option)
+			}
+		}
+	}
+
+	params := files_sdk.FileDownloadParams{
+		Path: o.fs.absPath(o.remote),
+	}
+
+	headers := &http.Header{}
+	headers.Set("Range", fmt.Sprintf("bytes=%v-%v", offset, offset+count-1))
+	err = o.fs.pacer.Call(func() (bool, error) {
+		_, err = o.fs.fileClient.Download(
+			params,
+			files_sdk.WithContext(ctx),
+			files_sdk.RequestHeadersOption(headers),
+			files_sdk.ResponseBodyOption(func(closer io.ReadCloser) error {
+				in = closer
+				return err
+			}),
+		)
+		return shouldRetry(ctx, err)
+	})
+	return
+}
+
+// Returns a pointer to t - useful for returning pointers to constants
+func ptr[T any](t T) *T {
+	return &t
+}
+
+func isFolderNotEmpty(err error) bool {
+	var re files_sdk.ResponseError
+	ok := errors.As(err, &re)
+	return ok && re.Type == folderNotEmpty
+}
+
+// Update the object with the contents of the io.Reader, modTime and size
+//
+// If existing is set then it updates the object rather than creating a new one.
+//
+// The new object may have been created if an error is returned.
+func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
+	uploadOpts := []file.UploadOption{
+		file.UploadWithContext(ctx),
+		file.UploadWithReader(in),
+		file.UploadWithDestinationPath(o.fs.absPath(o.remote)),
+		file.UploadWithProvidedMtime(src.ModTime(ctx)),
+	}
+
+	err := o.fs.pacer.Call(func() (bool, error) {
+		err := o.fs.fileClient.Upload(uploadOpts...)
+		return shouldRetry(ctx, err)
+	})
+	if err != nil {
+		return err
+	}
+
+	return o.readMetaData(ctx)
+}
+
+// Remove an object
+func (o *Object) Remove(ctx context.Context) error {
+	params := files_sdk.FileDeleteParams{
+		Path: o.fs.absPath(o.remote),
+	}
+
+	return o.fs.pacer.Call(func() (bool, error) {
+		err := o.fs.fileClient.Delete(params, files_sdk.WithContext(ctx))
+		return shouldRetry(ctx, err)
+	})
+}
+
+// MimeType of an Object if known, "" otherwise
+func (o *Object) MimeType(ctx context.Context) string {
+	return o.mimeType
+}
+
+// Check the interfaces are satisfied
+var (
+	_ fs.Fs           = (*Fs)(nil)
+	_ fs.Purger       = (*Fs)(nil)
+	_ fs.PutStreamer  = (*Fs)(nil)
+	_ fs.Copier       = (*Fs)(nil)
+	_ fs.Mover        = (*Fs)(nil)
+	_ fs.DirMover     = (*Fs)(nil)
+	_ fs.PublicLinker = (*Fs)(nil)
+	_ fs.Object       = (*Object)(nil)
+	_ fs.MimeTyper    = (*Object)(nil)
+)

backend/filescom/filescom_test.go

@@ -0,0 +1,17 @@
+// Test Files filesystem interface
+package filescom_test
+
+import (
+	"testing"
+
+	"github.com/rclone/rclone/backend/filescom"
+	"github.com/rclone/rclone/fstest/fstests"
+)
+
+// TestIntegration runs integration tests against the remote
+func TestIntegration(t *testing.T) {
+	fstests.Run(t, &fstests.Opt{
+		RemoteName: "TestFilesCom:",
+		NilObject:  (*filescom.Object)(nil),
+	})
+}

backend/ftp/ftp.go

@@ -9,6 +9,7 @@ import (
 	"io"
 	"net"
 	"net/textproto"
+	"net/url"
 	"path"
 	"runtime"
 	"strings"
@@ -85,7 +86,7 @@ to an encrypted one. Cannot be used in combination with implicit FTPS.`,
 			Default: false,
 		}, {
 			Name: "concurrency",
-			Help: strings.Replace(`Maximum number of FTP simultaneous connections, 0 for unlimited.
+			Help: strings.ReplaceAll(`Maximum number of FTP simultaneous connections, 0 for unlimited.
 
 Note that setting this is very likely to cause deadlocks so it should
 be used with care.
@@ -99,7 +100,7 @@ maximum of |--checkers| and |--transfers|.
 So for |concurrency 3| you'd use |--checkers 2 --transfers 2
 --check-first| or |--checkers 1 --transfers 1|.
 
-`, "|", "`", -1),
+`, "|", "`"),
 			Default:  0,
 			Advanced: true,
 		}, {
@@ -180,12 +181,36 @@ If this is set and no password is supplied then rclone will ask for a password
 			Default: "",
 			Help: `Socks 5 proxy host.
 		
-		Supports the format user:pass@host:port, user@host:port, host:port.
+Supports the format user:pass@host:port, user@host:port, host:port.
 		
-		Example:
+Example:
 		
-			myUser:myPass@localhost:9005
-		`,
+    myUser:myPass@localhost:9005
+`,
+			Advanced: true,
+		}, {
+			Name:    "http_proxy",
+			Default: "",
+			Help: `URL for HTTP CONNECT proxy
+
+Set this to a URL for an HTTP proxy which supports the HTTP CONNECT verb.
+`,
+			Advanced: true,
+		}, {
+			Name:    "no_check_upload",
+			Default: false,
+			Help: `Don't check the upload is OK
+
+Normally rclone will try to check the upload exists after it has
+uploaded a file to make sure the size and modification time are as
+expected.
+
+This flag stops rclone doing these checks. This enables uploading to
+folders which are write only.
+
+You will likely need to use the --inplace flag also if uploading to
+a write only folder.
+`,
 			Advanced: true,
 		}, {
 			Name:     config.ConfigEncoding,
@@ -232,6 +257,8 @@ type Options struct {
 	AskPassword       bool                 `config:"ask_password"`
 	Enc               encoder.MultiEncoder `config:"encoding"`
 	SocksProxy        string               `config:"socks_proxy"`
+	HTTPProxy         string               `config:"http_proxy"`
+	NoCheckUpload     bool                 `config:"no_check_upload"`
 }
 
 // Fs represents a remote FTP server
@@ -249,6 +276,7 @@ type Fs struct {
 	pool     []*ftp.ServerConn
 	drain    *time.Timer // used to drain the pool when we stop using the connections
 	tokens   *pacer.TokenDispenser
+	proxyURL *url.URL  // address of HTTP proxy read from environment
 	pacer    *fs.Pacer // pacer for FTP connections
 	fGetTime bool      // true if the ftp library accepts GetTime
 	fSetTime bool      // true if the ftp library accepts SetTime
@@ -396,11 +424,26 @@ func (f *Fs) ftpConnection(ctx context.Context) (c *ftp.ServerConn, err error) {
 	dial := func(network, address string) (conn net.Conn, err error) {
 		fs.Debugf(f, "dial(%q,%q)", network, address)
 		defer func() {
-			fs.Debugf(f, "> dial: conn=%T, err=%v", conn, err)
+			if err != nil {
+				fs.Debugf(f, "> dial: conn=%v, err=%v", conn, err)
+			} else {
+				fs.Debugf(f, "> dial: conn=%s->%s, err=%v", conn.LocalAddr(), conn.RemoteAddr(), err)
+			}
 		}()
 		baseDialer := fshttp.NewDialer(ctx)
 		if f.opt.SocksProxy != "" {
 			conn, err = proxy.SOCKS5Dial(network, address, f.opt.SocksProxy, baseDialer)
+		} else if f.proxyURL != nil {
+			// We need to make the onward connection to f.opt.Host. However the FTP
+			// library sets the host to the proxy IP after using EPSV or PASV so we need
+			// to correct that here.
+			var dialPort string
+			_, dialPort, err = net.SplitHostPort(address)
+			if err != nil {
+				return nil, err
+			}
+			dialAddress := net.JoinHostPort(f.opt.Host, dialPort)
+			conn, err = proxy.HTTPConnectDial(network, dialAddress, f.proxyURL, baseDialer)
 		} else {
 			conn, err = baseDialer.Dial(network, address)
 		}
@@ -614,6 +657,14 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (ff fs.Fs
 		CanHaveEmptyDirectories: true,
 		PartialUploads:          true,
 	}).Fill(ctx, f)
+	// get proxy URL if set
+	if opt.HTTPProxy != "" {
+		proxyURL, err := url.Parse(opt.HTTPProxy)
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse HTTP Proxy URL: %w", err)
+		}
+		f.proxyURL = proxyURL
+	}
 	// set the pool drainer timer going
 	if f.opt.IdleTimeout > 0 {
 		f.drain = time.AfterFunc(time.Duration(opt.IdleTimeout), func() { _ = f.drainPool(ctx) })
@@ -1303,6 +1354,16 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		return fmt.Errorf("update stor: %w", err)
 	}
 	o.fs.putFtpConnection(&c, nil)
+	if o.fs.opt.NoCheckUpload {
+		o.info = &FileInfo{
+			Name:    o.remote,
+			Size:    uint64(src.Size()),
+			ModTime: src.ModTime(ctx),
+			precise: true,
+			IsDir:   false,
+		}
+		return nil
+	}
 	if err = o.SetModTime(ctx, src.ModTime(ctx)); err != nil {
 		return fmt.Errorf("SetModTime: %w", err)
 	}

backend/ftp/ftp_internal_test.go

@@ -17,7 +17,7 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-type settings map[string]interface{}
+type settings map[string]any
 
 func deriveFs(ctx context.Context, t *testing.T, f fs.Fs, opts settings) fs.Fs {
 	fsName := strings.Split(f.Name(), "{")[0] // strip off hash
@@ -52,7 +52,7 @@ func (f *Fs) testUploadTimeout(t *testing.T) {
 		ci.Timeout = saveTimeout
 	}()
 	ci.LowLevelRetries = 1
-	ci.Timeout = idleTimeout
+	ci.Timeout = fs.Duration(idleTimeout)
 
 	upload := func(concurrency int, shutTimeout time.Duration) (obj fs.Object, err error) {
 		fixFs := deriveFs(ctx, t, f, settings{

backend/gofile/api/types.go

@@ -0,0 +1,287 @@
+// Package api has type definitions for gofile
+//
+// Converted from the API docs with help from https://mholt.github.io/json-to-go/
+package api
+
+import (
+	"fmt"
+	"time"
+)
+
+const (
+	// 2017-05-03T07:26:10-07:00
+	timeFormat = `"` + time.RFC3339 + `"`
+)
+
+// Time represents date and time information for the
+// gofile API, by using RFC3339
+type Time time.Time
+
+// MarshalJSON turns a Time into JSON (in UTC)
+func (t *Time) MarshalJSON() (out []byte, err error) {
+	timeString := (*time.Time)(t).Format(timeFormat)
+	return []byte(timeString), nil
+}
+
+// UnmarshalJSON turns JSON into a Time
+func (t *Time) UnmarshalJSON(data []byte) error {
+	newT, err := time.Parse(timeFormat, string(data))
+	if err != nil {
+		return err
+	}
+	*t = Time(newT)
+	return nil
+}
+
+// Error is returned from gofile when things go wrong
+type Error struct {
+	Status string `json:"status"`
+}
+
+// Error returns a string for the error and satisfies the error interface
+func (e Error) Error() string {
+	out := fmt.Sprintf("Error %q", e.Status)
+	return out
+}
+
+// IsError returns true if there is an error
+func (e Error) IsError() bool {
+	return e.Status != "ok"
+}
+
+// Err returns err if not nil, or e if IsError or nil
+func (e Error) Err(err error) error {
+	if err != nil {
+		return err
+	}
+	if e.IsError() {
+		return e
+	}
+	return nil
+}
+
+// Check Error satisfies the error interface
+var _ error = (*Error)(nil)
+
+// Types of things in Item
+const (
+	ItemTypeFolder = "folder"
+	ItemTypeFile   = "file"
+)
+
+// Item describes a folder or a file as returned by /contents
+type Item struct {
+	ID            string                 `json:"id"`
+	ParentFolder  string                 `json:"parentFolder"`
+	Type          string                 `json:"type"`
+	Name          string                 `json:"name"`
+	Size          int64                  `json:"size"`
+	Code          string                 `json:"code"`
+	CreateTime    int64                  `json:"createTime"`
+	ModTime       int64                  `json:"modTime"`
+	Link          string                 `json:"link"`
+	MD5           string                 `json:"md5"`
+	MimeType      string                 `json:"mimetype"`
+	ChildrenCount int                    `json:"childrenCount"`
+	DirectLinks   map[string]*DirectLink `json:"directLinks"`
+	//Public         bool     `json:"public"`
+	//ServerSelected string   `json:"serverSelected"`
+	//Thumbnail      string   `json:"thumbnail"`
+	//DownloadCount int      `json:"downloadCount"`
+	//TotalDownloadCount int64            `json:"totalDownloadCount"`
+	//TotalSize int64            `json:"totalSize"`
+	//ChildrenIDs   []string               `json:"childrenIds"`
+	Children map[string]*Item `json:"children"`
+}
+
+// ToNativeTime converts a go time to a native time
+func ToNativeTime(t time.Time) int64 {
+	return t.Unix()
+}
+
+// FromNativeTime converts native time to a go time
+func FromNativeTime(t int64) time.Time {
+	return time.Unix(t, 0)
+}
+
+// DirectLink describes a direct link to a file so it can be
+// downloaded by third parties.
+type DirectLink struct {
+	ExpireTime       int64  `json:"expireTime"`
+	SourceIpsAllowed []any  `json:"sourceIpsAllowed"`
+	DomainsAllowed   []any  `json:"domainsAllowed"`
+	Auth             []any  `json:"auth"`
+	IsReqLink        bool   `json:"isReqLink"`
+	DirectLink       string `json:"directLink"`
+}
+
+// Contents is returned from the /contents call
+type Contents struct {
+	Error
+	Data struct {
+		Item
+	} `json:"data"`
+	Metadata Metadata `json:"metadata"`
+}
+
+// Metadata is returned when paging is in use
+type Metadata struct {
+	TotalCount  int  `json:"totalCount"`
+	TotalPages  int  `json:"totalPages"`
+	Page        int  `json:"page"`
+	PageSize    int  `json:"pageSize"`
+	HasNextPage bool `json:"hasNextPage"`
+}
+
+// AccountsGetID is the result of /accounts/getid
+type AccountsGetID struct {
+	Error
+	Data struct {
+		ID string `json:"id"`
+	} `json:"data"`
+}
+
+// Stats of storage and traffic
+type Stats struct {
+	FolderCount            int64 `json:"folderCount"`
+	FileCount              int64 `json:"fileCount"`
+	Storage                int64 `json:"storage"`
+	TrafficDirectGenerated int64 `json:"trafficDirectGenerated"`
+	TrafficReqDownloaded   int64 `json:"trafficReqDownloaded"`
+	TrafficWebDownloaded   int64 `json:"trafficWebDownloaded"`
+}
+
+// AccountsGet is the result of /accounts/{id}
+type AccountsGet struct {
+	Error
+	Data struct {
+		ID                             string `json:"id"`
+		Email                          string `json:"email"`
+		Tier                           string `json:"tier"`
+		PremiumType                    string `json:"premiumType"`
+		Token                          string `json:"token"`
+		RootFolder                     string `json:"rootFolder"`
+		SubscriptionProvider           string `json:"subscriptionProvider"`
+		SubscriptionEndDate            int    `json:"subscriptionEndDate"`
+		SubscriptionLimitDirectTraffic int64  `json:"subscriptionLimitDirectTraffic"`
+		SubscriptionLimitStorage       int64  `json:"subscriptionLimitStorage"`
+		StatsCurrent                   Stats  `json:"statsCurrent"`
+		// StatsHistory                   map[int]map[int]map[int]Stats `json:"statsHistory"`
+	} `json:"data"`
+}
+
+// CreateFolderRequest is the input to /contents/createFolder
+type CreateFolderRequest struct {
+	ParentFolderID string `json:"parentFolderId"`
+	FolderName     string `json:"folderName"`
+	ModTime        int64  `json:"modTime,omitempty"`
+}
+
+// CreateFolderResponse is the output from /contents/createFolder
+type CreateFolderResponse struct {
+	Error
+	Data Item `json:"data"`
+}
+
+// DeleteRequest is the input to DELETE /contents
+type DeleteRequest struct {
+	ContentsID string `json:"contentsId"` // comma separated list of IDs
+}
+
+// DeleteResponse is the input to DELETE /contents
+type DeleteResponse struct {
+	Error
+	Data map[string]Error
+}
+
+// DirectUploadURL returns the direct upload URL for Gofile
+func DirectUploadURL() string {
+	return "https://upload.gofile.io/uploadfile"
+}
+
+// UploadResponse is returned by POST /contents/uploadfile
+type UploadResponse struct {
+	Error
+	Data Item `json:"data"`
+}
+
+// DirectLinksRequest specifies the parameters for the direct link
+type DirectLinksRequest struct {
+	ExpireTime       int64 `json:"expireTime,omitempty"`
+	SourceIpsAllowed []any `json:"sourceIpsAllowed,omitempty"`
+	DomainsAllowed   []any `json:"domainsAllowed,omitempty"`
+	Auth             []any `json:"auth,omitempty"`
+}
+
+// DirectLinksResult is returned from POST /contents/{id}/directlinks
+type DirectLinksResult struct {
+	Error
+	Data struct {
+		ExpireTime       int64  `json:"expireTime"`
+		SourceIpsAllowed []any  `json:"sourceIpsAllowed"`
+		DomainsAllowed   []any  `json:"domainsAllowed"`
+		Auth             []any  `json:"auth"`
+		IsReqLink        bool   `json:"isReqLink"`
+		ID               string `json:"id"`
+		DirectLink       string `json:"directLink"`
+	} `json:"data"`
+}
+
+// UpdateItemRequest describes the updates to be done to an item for PUT /contents/{id}/update
+//
+// The Value of the attribute to define :
+// For Attribute "name" : The name of the content (file or folder)
+// For Attribute "description" : The description displayed on the download page (folder only)
+// For Attribute "tags" : A comma-separated list of tags (folder only)
+// For Attribute "public" : either true or false (folder only)
+// For Attribute "expiry" : A unix timestamp of the expiration date (folder only)
+// For Attribute "password" : The password to set (folder only)
+type UpdateItemRequest struct {
+	Attribute string `json:"attribute"`
+	Value     any    `json:"attributeValue"`
+}
+
+// UpdateItemResponse is returned by PUT /contents/{id}/update
+type UpdateItemResponse struct {
+	Error
+	Data Item `json:"data"`
+}
+
+// MoveRequest is the input to /contents/move
+type MoveRequest struct {
+	FolderID   string `json:"folderId"`
+	ContentsID string `json:"contentsId"` // comma separated list of IDs
+}
+
+// MoveResponse is returned by POST /contents/move
+type MoveResponse struct {
+	Error
+	Data map[string]struct {
+		Error
+		Item `json:"data"`
+	} `json:"data"`
+}
+
+// CopyRequest is the input to /contents/copy
+type CopyRequest struct {
+	FolderID   string `json:"folderId"`
+	ContentsID string `json:"contentsId"` // comma separated list of IDs
+}
+
+// CopyResponse is returned by POST /contents/copy
+type CopyResponse struct {
+	Error
+	Data map[string]struct {
+		Error
+		Item `json:"data"`
+	} `json:"data"`
+}
+
+// UploadServerStatus is returned when fetching the root of an upload server
+type UploadServerStatus struct {
+	Error
+	Data struct {
+		Server string `json:"server"`
+		Test   string `json:"test"`
+	} `json:"data"`
+}

backend/gofile/gofile_test.go

@@ -0,0 +1,17 @@
+// Test Gofile filesystem interface
+package gofile_test
+
+import (
+	"testing"
+
+	"github.com/rclone/rclone/backend/gofile"
+	"github.com/rclone/rclone/fstest/fstests"
+)
+
+// TestIntegration runs integration tests against the remote
+func TestIntegration(t *testing.T) {
+	fstests.Run(t, &fstests.Opt{
+		RemoteName: "TestGoFile:",
+		NilObject:  (*gofile.Object)(nil),
+	})
+}

backend/googlecloudstorage/googlecloudstorage.go

@@ -35,7 +35,7 @@ import (
 	"github.com/rclone/rclone/fs/fserrors"
 	"github.com/rclone/rclone/fs/fshttp"
 	"github.com/rclone/rclone/fs/hash"
-	"github.com/rclone/rclone/fs/walk"
+	"github.com/rclone/rclone/fs/list"
 	"github.com/rclone/rclone/lib/bucket"
 	"github.com/rclone/rclone/lib/encoder"
 	"github.com/rclone/rclone/lib/env"
@@ -62,9 +62,10 @@ const (
 
 var (
 	// Description of how to auth for this app
-	storageConfig = &oauth2.Config{
+	storageConfig = &oauthutil.Config{
 		Scopes:       []string{storage.DevstorageReadWriteScope},
-		Endpoint:     google.Endpoint,
+		AuthURL:      google.Endpoint.AuthURL,
+		TokenURL:     google.Endpoint.TokenURL,
 		ClientID:     rcloneClientID,
 		ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
 		RedirectURL:  oauthutil.RedirectURL,
@@ -106,6 +107,12 @@ func init() {
 			Help:      "Service Account Credentials JSON blob.\n\nLeave blank normally.\nNeeded only if you want use SA instead of interactive login.",
 			Hide:      fs.OptionHideBoth,
 			Sensitive: true,
+		}, {
+			Name:      "access_token",
+			Help:      "Short-lived access token.\n\nLeave blank normally.\nNeeded only if you want use short-lived access token instead of interactive login.",
+			Hide:      fs.OptionHideConfigurator,
+			Sensitive: true,
+			Advanced:  true,
 		}, {
 			Name:    "anonymous",
 			Help:    "Access public buckets and objects without credentials.\n\nSet to 'true' if you just want to download files and don't configure credentials.",
@@ -379,6 +386,7 @@ type Options struct {
 	Enc                       encoder.MultiEncoder `config:"encoding"`
 	EnvAuth                   bool                 `config:"env_auth"`
 	DirectoryMarkers          bool                 `config:"directory_markers"`
+	AccessToken               string               `config:"access_token"`
 }
 
 // Fs represents a remote storage server
@@ -475,6 +483,9 @@ func parsePath(path string) (root string) {
 // relative to f.root
 func (f *Fs) split(rootRelativePath string) (bucketName, bucketPath string) {
 	bucketName, bucketPath = bucket.Split(bucket.Join(f.root, rootRelativePath))
+	if f.opt.DirectoryMarkers && strings.HasSuffix(bucketPath, "//") {
+		bucketPath = bucketPath[:len(bucketPath)-1]
+	}
 	return f.opt.Enc.FromStandardName(bucketName), f.opt.Enc.FromStandardPath(bucketPath)
 }
 
@@ -535,6 +546,9 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		if err != nil {
 			return nil, fmt.Errorf("failed to configure Google Cloud Storage: %w", err)
 		}
+	} else if opt.AccessToken != "" {
+		ts := oauth2.Token{AccessToken: opt.AccessToken}
+		oAuthClient = oauth2.NewClient(ctx, oauth2.StaticTokenSource(&ts))
 	} else {
 		oAuthClient, _, err = oauthutil.NewClient(ctx, name, m, storageConfig)
 		if err != nil {
@@ -701,7 +715,7 @@ func (f *Fs) list(ctx context.Context, bucket, directory, prefix string, addBuck
 					continue
 				}
 				// process directory markers as directories
-				remote = strings.TrimRight(remote, "/")
+				remote, _ = strings.CutSuffix(remote, "/")
 			}
 			remote = remote[len(prefix):]
 			if addBucket {
@@ -834,7 +848,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 // of listing recursively that doing a directory traversal.
 func (f *Fs) ListR(ctx context.Context, dir string, callback fs.ListRCallback) (err error) {
 	bucket, directory := f.split(dir)
-	list := walk.NewListRHelper(callback)
+	list := list.NewHelper(callback)
 	listR := func(bucket, directory, prefix string, addBucket bool) error {
 		return f.list(ctx, bucket, directory, prefix, addBucket, true, func(remote string, object *storage.Object, isDirectory bool) error {
 			entry, err := f.itemToDirEntry(ctx, remote, object, isDirectory)
@@ -944,12 +958,11 @@ func (f *Fs) Mkdir(ctx context.Context, dir string) (err error) {
 		return e
 	}
 	return f.createDirectoryMarker(ctx, bucket, dir)
-
 }
 
 // mkdirParent creates the parent bucket/directory if it doesn't exist
 func (f *Fs) mkdirParent(ctx context.Context, remote string) error {
-	remote = strings.TrimRight(remote, "/")
+	remote, _ = strings.CutSuffix(remote, "/")
 	dir := path.Dir(remote)
 	if dir == "/" || dir == "." {
 		dir = ""

backend/googlephotos/albums.go

@@ -4,6 +4,7 @@ package googlephotos
 
 import (
 	"path"
+	"slices"
 	"strings"
 	"sync"
 
@@ -119,7 +120,7 @@ func (as *albums) _del(album *api.Album) {
 		dirs := as.path[dir]
 		for i, dir := range dirs {
 			if dir == leaf {
-				dirs = append(dirs[:i], dirs[i+1:]...)
+				dirs = slices.Delete(dirs, i, i+1)
 				break
 			}
 		}

backend/googlephotos/googlephotos.go

@@ -28,13 +28,11 @@ import (
 	"github.com/rclone/rclone/fs/fserrors"
 	"github.com/rclone/rclone/fs/fshttp"
 	"github.com/rclone/rclone/fs/hash"
-	"github.com/rclone/rclone/fs/log"
 	"github.com/rclone/rclone/lib/batcher"
 	"github.com/rclone/rclone/lib/encoder"
 	"github.com/rclone/rclone/lib/oauthutil"
 	"github.com/rclone/rclone/lib/pacer"
 	"github.com/rclone/rclone/lib/rest"
-	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/google"
 )
 
@@ -45,6 +43,7 @@ var (
 	errAlbumDelete = errors.New("google photos API does not implement deleting albums")
 	errRemove      = errors.New("google photos API only implements removing files from albums")
 	errOwnAlbums   = errors.New("google photos API only allows uploading to albums rclone created")
+	errReadOnly    = errors.New("can't upload files in read only mode")
 )
 
 const (
@@ -54,20 +53,33 @@ const (
 	listChunks                  = 100 // chunk size to read directory listings
 	albumChunks                 = 50  // chunk size to read album listings
 	minSleep                    = 10 * time.Millisecond
-	scopeReadOnly               = "https://www.googleapis.com/auth/photoslibrary.readonly"
-	scopeReadWrite              = "https://www.googleapis.com/auth/photoslibrary"
-	scopeAccess                 = 2 // position of access scope in list
+	scopeAppendOnly             = "https://www.googleapis.com/auth/photoslibrary.appendonly"
+	scopeReadOnly               = "https://www.googleapis.com/auth/photoslibrary.readonly.appcreateddata"
+	scopeReadWrite              = "https://www.googleapis.com/auth/photoslibrary.edit.appcreateddata"
 )
 
 var (
+	// scopes needed for read write access
+	scopesReadWrite = []string{
+		"openid",
+		"profile",
+		scopeAppendOnly,
+		scopeReadOnly,
+		scopeReadWrite,
+	}
+
+	// scopes needed for read only access
+	scopesReadOnly = []string{
+		"openid",
+		"profile",
+		scopeReadOnly,
+	}
+
 	// Description of how to auth for this app
-	oauthConfig = &oauth2.Config{
-		Scopes: []string{
-			"openid",
-			"profile",
-			scopeReadWrite, // this must be at position scopeAccess
-		},
-		Endpoint:     google.Endpoint,
+	oauthConfig = &oauthutil.Config{
+		Scopes:       scopesReadWrite,
+		AuthURL:      google.Endpoint.AuthURL,
+		TokenURL:     google.Endpoint.TokenURL,
 		ClientID:     rcloneClientID,
 		ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
 		RedirectURL:  oauthutil.RedirectURL,
@@ -101,20 +113,26 @@ func init() {
 			case "":
 				// Fill in the scopes
 				if opt.ReadOnly {
-					oauthConfig.Scopes[scopeAccess] = scopeReadOnly
+					oauthConfig.Scopes = scopesReadOnly
 				} else {
-					oauthConfig.Scopes[scopeAccess] = scopeReadWrite
+					oauthConfig.Scopes = scopesReadWrite
 				}
-				return oauthutil.ConfigOut("warning", &oauthutil.Options{
+				return oauthutil.ConfigOut("warning1", &oauthutil.Options{
 					OAuth2Config: oauthConfig,
 				})
-			case "warning":
+			case "warning1":
 				// Warn the user as required by google photos integration
-				return fs.ConfigConfirm("warning_done", true, "config_warning", `Warning
+				return fs.ConfigConfirm("warning2", true, "config_warning", `Warning
 
 IMPORTANT: All media items uploaded to Google Photos with rclone
 are stored in full resolution at original quality.  These uploads
 will count towards storage in your Google Account.`)
+
+			case "warning2":
+				// Warn the user that rclone can no longer download photos it didnt upload from google photos
+				return fs.ConfigConfirm("warning_done", true, "config_warning", `Warning
+IMPORTANT: Due to Google policy changes rclone can now only download photos it uploaded.`)
+
 			case "warning_done":
 				return nil, nil
 			}
@@ -160,6 +178,34 @@ listings and transferred.
 Without this flag, archived media will not be visible in directory
 listings and won't be transferred.`,
 			Advanced: true,
+		}, {
+			Name:    "proxy",
+			Default: "",
+			Help: strings.ReplaceAll(`Use the gphotosdl proxy for downloading the full resolution images
+
+The Google API will deliver images and video which aren't full
+resolution, and/or have EXIF data missing.
+
+However if you use the gphotosdl proxy then you can download original,
+unchanged images.
+
+This runs a headless browser in the background.
+
+Download the software from [gphotosdl](https://github.com/rclone/gphotosdl)
+
+First run with
+
+    gphotosdl -login
+
+Then once you have logged into google photos close the browser window
+and run
+
+    gphotosdl
+
+Then supply the parameter |--gphotos-proxy "http://localhost:8282"| to make
+rclone use the proxy.
+`, "|", "`"),
+			Advanced: true,
 		}, {
 			Name:     config.ConfigEncoding,
 			Help:     config.ConfigEncodingHelp,
@@ -181,6 +227,7 @@ type Options struct {
 	BatchMode       string               `config:"batch_mode"`
 	BatchSize       int                  `config:"batch_size"`
 	BatchTimeout    fs.Duration          `config:"batch_timeout"`
+	Proxy           string               `config:"proxy"`
 }
 
 // Fs represents a remote storage server
@@ -305,7 +352,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 	baseClient := fshttp.NewClient(ctx)
 	oAuthClient, ts, err := oauthutil.NewClientWithBaseClient(ctx, name, m, oauthConfig, baseClient)
 	if err != nil {
-		return nil, fmt.Errorf("failed to configure Box: %w", err)
+		return nil, fmt.Errorf("failed to configure google photos: %w", err)
 	}
 
 	root = strings.Trim(path.Clean(root), "/")
@@ -360,7 +407,7 @@ func (f *Fs) fetchEndpoint(ctx context.Context, name string) (endpoint string, e
 		Method:  "GET",
 		RootURL: "https://accounts.google.com/.well-known/openid-configuration",
 	}
-	var openIDconfig map[string]interface{}
+	var openIDconfig map[string]any
 	err = f.pacer.Call(func() (bool, error) {
 		resp, err := f.unAuth.CallJSON(ctx, &opts, nil, &openIDconfig)
 		return shouldRetry(ctx, resp, err)
@@ -420,7 +467,7 @@ func (f *Fs) Disconnect(ctx context.Context) (err error) {
 			"token_type_hint": []string{"access_token"},
 		},
 	}
-	var res interface{}
+	var res any
 	err = f.pacer.Call(func() (bool, error) {
 		resp, err := f.srv.CallJSON(ctx, &opts, nil, &res)
 		return shouldRetry(ctx, resp, err)
@@ -454,7 +501,7 @@ func (f *Fs) newObjectWithInfo(ctx context.Context, remote string, info *api.Med
 // NewObject finds the Object at remote.  If it can't be found
 // it returns the error fs.ErrorObjectNotFound.
 func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error) {
-	defer log.Trace(f, "remote=%q", remote)("")
+	// defer log.Trace(f, "remote=%q", remote)("")
 	return f.newObjectWithInfo(ctx, remote, nil)
 }
 
@@ -667,7 +714,7 @@ func (f *Fs) listUploads(ctx context.Context, dir string) (entries fs.DirEntries
 // This should return ErrDirNotFound if the directory isn't
 // found.
 func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error) {
-	defer log.Trace(f, "dir=%q", dir)("err=%v", &err)
+	// defer log.Trace(f, "dir=%q", dir)("err=%v", &err)
 	match, prefix, pattern := patterns.match(f.root, dir, false)
 	if pattern == nil || pattern.isFile {
 		return nil, fs.ErrorDirNotFound
@@ -684,7 +731,7 @@ func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err e
 //
 // The new object may have been created if an error is returned
 func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
-	defer log.Trace(f, "src=%+v", src)("")
+	// defer log.Trace(f, "src=%+v", src)("")
 	// Temporary Object under construction
 	o := &Object{
 		fs:     f,
@@ -737,7 +784,7 @@ func (f *Fs) getOrCreateAlbum(ctx context.Context, albumTitle string) (album *ap
 
 // Mkdir creates the album if it doesn't exist
 func (f *Fs) Mkdir(ctx context.Context, dir string) (err error) {
-	defer log.Trace(f, "dir=%q", dir)("err=%v", &err)
+	// defer log.Trace(f, "dir=%q", dir)("err=%v", &err)
 	match, prefix, pattern := patterns.match(f.root, dir, false)
 	if pattern == nil {
 		return fs.ErrorDirNotFound
@@ -761,7 +808,7 @@ func (f *Fs) Mkdir(ctx context.Context, dir string) (err error) {
 //
 // Returns an error if it isn't empty
 func (f *Fs) Rmdir(ctx context.Context, dir string) (err error) {
-	defer log.Trace(f, "dir=%q")("err=%v", &err)
+	// defer log.Trace(f, "dir=%q")("err=%v", &err)
 	match, _, pattern := patterns.match(f.root, dir, false)
 	if pattern == nil {
 		return fs.ErrorDirNotFound
@@ -834,7 +881,7 @@ func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error) {
 
 // Size returns the size of an object in bytes
 func (o *Object) Size() int64 {
-	defer log.Trace(o, "")("")
+	// defer log.Trace(o, "")("")
 	if !o.fs.opt.ReadSize || o.bytes >= 0 {
 		return o.bytes
 	}
@@ -935,7 +982,7 @@ func (o *Object) readMetaData(ctx context.Context) (err error) {
 // It attempts to read the objects mtime and if that isn't present the
 // LastModified returned in the http headers
 func (o *Object) ModTime(ctx context.Context) time.Time {
-	defer log.Trace(o, "")("")
+	// defer log.Trace(o, "")("")
 	err := o.readMetaData(ctx)
 	if err != nil {
 		fs.Debugf(o, "ModTime: Failed to read metadata: %v", err)
@@ -965,16 +1012,20 @@ func (o *Object) downloadURL() string {
 
 // Open an object for read
 func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.ReadCloser, err error) {
-	defer log.Trace(o, "")("")
+	// defer log.Trace(o, "")("")
 	err = o.readMetaData(ctx)
 	if err != nil {
 		fs.Debugf(o, "Open: Failed to read metadata: %v", err)
 		return nil, err
 	}
+	url := o.downloadURL()
+	if o.fs.opt.Proxy != "" {
+		url = strings.TrimRight(o.fs.opt.Proxy, "/") + "/id/" + o.id
+	}
 	var resp *http.Response
 	opts := rest.Opts{
 		Method:  "GET",
-		RootURL: o.downloadURL(),
+		RootURL: url,
 		Options: options,
 	}
 	err = o.fs.pacer.Call(func() (bool, error) {
@@ -1067,7 +1118,7 @@ func (f *Fs) commitBatch(ctx context.Context, items []uploadedItem, results []*a
 //
 // The new object may have been created if an error is returned
 func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error) {
-	defer log.Trace(o, "src=%+v", src)("err=%v", &err)
+	// defer log.Trace(o, "src=%+v", src)("err=%v", &err)
 	match, _, pattern := patterns.match(o.fs.root, o.remote, true)
 	if pattern == nil || !pattern.isFile || !pattern.canUpload {
 		return errCantUpload
@@ -1088,6 +1139,9 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		}
 
 		if !album.IsWriteable {
+			if o.fs.opt.ReadOnly {
+				return errReadOnly
+			}
 			return errOwnAlbums
 		}
 
@@ -1136,7 +1190,7 @@ func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, op
 		errors := make([]error, 1)
 		results := make([]*api.MediaItem, 1)
 		err = o.fs.commitBatch(ctx, []uploadedItem{uploaded}, results, errors)
-		if err != nil {
+		if err == nil {
 			err = errors[0]
 			info = results[0]
 		}

backend/googlephotos/googlephotos_test.go

@@ -2,6 +2,7 @@ package googlephotos
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -35,7 +36,7 @@ func TestIntegration(t *testing.T) {
 		*fstest.RemoteName = "TestGooglePhotos:"
 	}
 	f, err := fs.NewFs(ctx, *fstest.RemoteName)
-	if err == fs.ErrorNotFoundInConfigFile {
+	if errors.Is(err, fs.ErrorNotFoundInConfigFile) {
 		t.Skipf("Couldn't create google photos backend - skipping tests: %v", err)
 	}
 	require.NoError(t, err)

backend/hasher/commands.go

@@ -24,7 +24,7 @@ import (
 // The result should be capable of being JSON encoded
 // If it is a string or a []string it will be shown to the user
 // otherwise it will be JSON encoded and shown to the user like that
-func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (out interface{}, err error) {
+func (f *Fs) Command(ctx context.Context, name string, arg []string, opt map[string]string) (out any, err error) {
 	switch name {
 	case "drop":
 		return nil, f.db.Stop(true)

backend/hasher/hasher.go

@@ -18,6 +18,7 @@ import (
 	"github.com/rclone/rclone/fs/config/configstruct"
 	"github.com/rclone/rclone/fs/fspath"
 	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/fs/list"
 	"github.com/rclone/rclone/lib/kv"
 )
 
@@ -182,6 +183,9 @@ func NewFs(ctx context.Context, fsname, rpath string, cmap configmap.Mapper) (fs
 	}
 	f.features = stubFeatures.Fill(ctx, f).Mask(ctx, f.Fs).WrapsFs(f, f.Fs)
 
+	// Enable ListP always
+	f.features.ListP = f.ListP
+
 	cache.PinUntilFinalized(f.Fs, f)
 	return f, err
 }
@@ -237,10 +241,39 @@ func (f *Fs) wrapEntries(baseEntries fs.DirEntries) (hashEntries fs.DirEntries,
 
 // List the objects and directories in dir into entries.
 func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error) {
-	if entries, err = f.Fs.List(ctx, dir); err != nil {
-		return nil, err
+	return list.WithListP(ctx, dir, f)
+}
+
+// ListP lists the objects and directories of the Fs starting
+// from dir non recursively into out.
+//
+// dir should be "" to start from the root, and should not
+// have trailing slashes.
+//
+// This should return ErrDirNotFound if the directory isn't
+// found.
+//
+// It should call callback for each tranche of entries read.
+// These need not be returned in any particular order.  If
+// callback returns an error then the listing will stop
+// immediately.
+func (f *Fs) ListP(ctx context.Context, dir string, callback fs.ListRCallback) error {
+	wrappedCallback := func(entries fs.DirEntries) error {
+		entries, err := f.wrapEntries(entries)
+		if err != nil {
+			return err
+		}
+		return callback(entries)
 	}
-	return f.wrapEntries(entries)
+	listP := f.Fs.Features().ListP
+	if listP == nil {
+		entries, err := f.Fs.List(ctx, dir)
+		if err != nil {
+			return err
+		}
+		return wrappedCallback(entries)
+	}
+	return listP(ctx, dir, wrappedCallback)
 }
 
 // ListR lists the objects and directories recursively into out.

backend/hasher/kv.go

@@ -6,6 +6,7 @@ import (
 	"encoding/gob"
 	"errors"
 	"fmt"
+	"maps"
 	"strings"
 	"time"
 
@@ -195,9 +196,7 @@ func (op *kvPut) Do(ctx context.Context, b kv.Bucket) (err error) {
 		r.Fp = op.fp
 	}
 
-	for hashType, hashVal := range op.hashes {
-		r.Hashes[hashType] = hashVal
-	}
+	maps.Copy(r.Hashes, op.hashes)
 	if data, err = r.encode(op.key); err != nil {
 		return fmt.Errorf("marshal failed: %w", err)
 	}

backend/hidrive/hidrive.go

@@ -31,7 +31,6 @@ import (
 	"github.com/rclone/rclone/lib/oauthutil"
 	"github.com/rclone/rclone/lib/pacer"
 	"github.com/rclone/rclone/lib/rest"
-	"golang.org/x/oauth2"
 )
 
 const (
@@ -48,11 +47,9 @@ const (
 // Globals
 var (
 	// Description of how to auth for this app.
-	oauthConfig = &oauth2.Config{
-		Endpoint: oauth2.Endpoint{
-			AuthURL:  "https://my.hidrive.com/client/authorize",
-			TokenURL: "https://my.hidrive.com/oauth2/token",
-		},
+	oauthConfig = &oauthutil.Config{
+		AuthURL:      "https://my.hidrive.com/client/authorize",
+		TokenURL:     "https://my.hidrive.com/oauth2/token",
 		ClientID:     rcloneClientID,
 		ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
 		RedirectURL:  oauthutil.TitleBarRedirectURL,

backend/hidrive/hidrivehash/hidrivehash.go

@@ -52,10 +52,7 @@ func writeByBlock(p []byte, writer io.Writer, blockSize uint32, bytesInBlock *ui
 	total := len(p)
 	nullBytes := make([]byte, blockSize)
 	for len(p) > 0 {
-		toWrite := int(blockSize - *bytesInBlock)
-		if toWrite > len(p) {
-			toWrite = len(p)
-		}
+		toWrite := min(int(blockSize-*bytesInBlock), len(p))
 		c, err := writer.Write(p[:toWrite])
 		*bytesInBlock += uint32(c)
 		*onlyNullBytesInBlock = *onlyNullBytesInBlock && bytes.Equal(nullBytes[:toWrite], p[:toWrite])
@@ -276,7 +273,7 @@ func (h *hidriveHash) Sum(b []byte) []byte {
 	}
 
 	checksum := zeroSum
-	for i := 0; i < len(h.levels); i++ {
+	for i := range h.levels {
 		level := h.levels[i]
 		if i < len(h.levels)-1 {
 			// Aggregate non-empty non-final levels.

backend/hidrive/hidrivehash/hidrivehash_test.go

@@ -216,7 +216,7 @@ func TestLevelWrite(t *testing.T) {
 func TestLevelIsFull(t *testing.T) {
 	content := [hidrivehash.Size]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19}
 	l := hidrivehash.NewLevel()
-	for i := 0; i < 256; i++ {
+	for range 256 {
 		assert.False(t, l.(internal.LevelHash).IsFull())
 		written, err := l.Write(content[:])
 		assert.Equal(t, len(content), written)