mount: use the equivalent of kernel_cache by default #FIXME WIP

2026-01-12 05:23:55 +00:00 · 2018-07-11 14:56:17 +01:00
11874 changed files with 8194992 additions and 208051 deletions
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -4,9 +4,6 @@ os: Windows Server 2012 R2

 clone_folder: c:\gopath\src\github.com\ncw\rclone

-cache:
-  - '%LocalAppData%\go-build'
-
 environment:
  GOPATH: C:\gopath
  CPATH: C:\Program Files (x86)\WinFsp\inc\fuse
@@ -46,4 +43,4 @@ artifacts:
 - path: build/*-v*.zip

 deploy_script:
- IF "%APPVEYOR_REPO_NAME%" == "ncw/rclone" IF "%APPVEYOR_PULL_REQUEST_NUMBER%" == "" make appveyor_upload
+- IF "%APPVEYOR_PULL_REQUEST_NUMBER%" == "" make appveyor_upload
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,4 +1,3 @@
---
 version: 2

 jobs:
@@ -14,10 +13,10 @@ jobs:
    - run:
        name: Cross-compile rclone
        command: |
-            docker pull rclone/xgo-cgofuse
+            docker pull billziss/xgo-cgofuse
            go get -v github.com/karalabe/xgo
            xgo \
-                --image=rclone/xgo-cgofuse \
+                --image=billziss/xgo-cgofuse \
                --targets=darwin/386,darwin/amd64,linux/386,linux/amd64,windows/386,windows/amd64 \
                -tags cmount \
                .
@@ -30,21 +29,6 @@ jobs:
        command: |
            mkdir -p /tmp/rclone.dist
            cp -R rclone-* /tmp/rclone.dist
-            mkdir build
-            cp -R rclone-* build/
-
-    - run:
-        name: Build rclone
-        command: |
-            go version
-            go build
-
-    - run:
-        name: Upload artifacts
-        command: |
-          if [[ $CIRCLE_PULL_REQUEST != "" ]]; then
-              make circleci_upload
-          fi

    - store_artifacts:
        path: /tmp/rclone.dist
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -1,31 +0,0 @@
-<!--
-
-Welcome :-) We understand you are having a problem with rclone; we want to help you with that!
-
-If you've just got a question or aren't sure if you've found a bug then please use the rclone forum:
-
-    https://forum.rclone.org/
-
-instead of filing an issue for a quick response.
-
-If you are reporting a bug or asking for a new feature then please use one of the templates here:
-
-    https://github.com/ncw/rclone/issues/new
-
-otherwise fill in the form below.
-
-Thank you
-
-The Rclone Developers
-
-->
-
-
-#### Output of `rclone version`
-
-
-
-#### Describe the issue
-
-
-
--- a/.github/ISSUE_TEMPLATE/Bug.md
+++ b/.github/ISSUE_TEMPLATE/Bug.md
@@ -1,50 +0,0 @@
---
-name: Bug report
-about: Report a problem with rclone
---
-
-<!--
-
-Welcome :-) We understand you are having a problem with rclone; we want to help you with that!
-
-If you've just got a question or aren't sure if you've found a bug then please use the rclone forum:
-
-    https://forum.rclone.org/
-
-instead of filing an issue for a quick response.
-
-If you think you might have found a bug, please can you try to replicate it with the latest beta?
-
-    https://beta.rclone.org/
-    
-If you can still replicate it with the latest beta, then please fill in the info below which makes our lives much easier.  A log with -vv will make our day :-)
-
-Thank you
-
-The Rclone Developers
-
-->
-
-#### What is the problem you are having with rclone?
-
-
-
-#### What is your rclone version (output from `rclone version`)
-
-
-
-#### Which OS you are using and how many bits (eg Windows 7, 64 bit)
-
-
-
-####  Which cloud storage system are you using? (eg Google Drive)
-
-
-
-#### The command you were trying to run (eg `rclone copy /tmp remote:tmp`)
-
-
-
-#### A log from the command with the `-vv` flag (eg output from `rclone -vv copy /tmp remote:tmp`)
-
-
--- a/.github/ISSUE_TEMPLATE/Feature.md
+++ b/.github/ISSUE_TEMPLATE/Feature.md
@@ -1,36 +0,0 @@
---
-name: Feature request
-about: Suggest a new feature or enhancement for rclone
---
-
-<!--
-
-Welcome :-)
-
-So you've got an idea to improve rclone? We love that! You'll be glad to hear we've incorporated hundreds of ideas from contributors already.
-
-Here is a checklist of things to do:
-
-  1. Please search the old issues first for your idea and +1 or comment on an existing issue if possible.
-  2. Discuss on the forum first: https://forum.rclone.org/
-  3. Make a feature request issue (this is the right place!).
-  4. Be prepared to get involved making the feature :-)
-
-Looking forward to your great idea!
-
-The Rclone Developers
-
-->
-
-
-#### What is your current rclone version (output from `rclone version`)?
-
-
-
-#### What problem are you are trying to solve?
-
-
-
-#### How do you think rclone should be changed to solve that?
-
-
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,29 +0,0 @@
-<!--
-Thank you very much for contributing code or documentation to rclone! Please
-fill out the following questions to make it easier for us to review your
-changes.
-
-You do not need to check all the boxes below all at once, feel free to take
-your time and add more commits. If you're done and ready for review, please
-check the last box.
-->
-
-#### What is the purpose of this change?
-
-<!--
-Describe the changes here
-->
-
-#### Was the change discussed in an issue or in the forum before?
-
-<!--
-Link issues and relevant forum posts here.
-->
-
-#### Checklist
-
- [ ] I have read the [contribution guidelines](https://github.com/ncw/rclone/blob/master/CONTRIBUTING.md#submitting-a-pull-request).
- [ ] I have added tests for all changes in this PR if appropriate.
- [ ] I have added documentation for the changes if appropriate.
- [ ] All commit messages are in [house style](https://github.com/ncw/rclone/blob/master/CONTRIBUTING.md#commit-messages).
- [ ] I'm done, this Pull Request is ready for review :-)
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -1,30 +0,0 @@
-# golangci-lint configuration options
-
-run:
-  build-tags:
-    - cmount
-
-linters:
-  enable:
-    - deadcode
-    - errcheck
-    - goimports
-    - golint
-    - ineffassign
-    - structcheck
-    - varcheck
-    - govet
-    - unconvert
-    #- prealloc
-    #- maligned
-  disable-all: true
-
-issues:
-  # Enable some lints excluded by default
-  exclude-use-default: false
-
-  # Maximum issues count per one linter. Set to 0 to disable. Default is 50.
-  max-per-linter: 0
-
-  # Maximum count of issues with the same text. Set to 0 to disable. Default is 3.
-  max-same-issues: 0
--- a/.gometalinter.json
+++ b/.gometalinter.json
@@ -0,0 +1,14 @@
+{
+    "Enable": [
+        "deadcode",
+        "errcheck",
+        "goimports",
+        "golint",
+        "ineffassign",
+        "structcheck",
+        "varcheck",
+        "vet"
+    ],
+    "EnableGC": true,
+    "Vendor": true
+}
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,109 +1,50 @@
---
 language: go
 sudo: required
 dist: trusty
 os:
-  - linux
-go_import_path: github.com/ncw/rclone
+- linux
+go:
+- 1.7.6
+- 1.8.7
+- 1.9.3
+- "1.10.1"
+- tip
 before_install:
-  - git fetch --unshallow --tags
-  - |
-    if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
-      sudo modprobe fuse
-      sudo chmod 666 /dev/fuse
-      sudo chown root:$USER /etc/fuse.conf
-    fi
-    if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
-      brew update
-      brew tap caskroom/cask
-      brew cask install osxfuse
-    fi
-    if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then
-      choco install -y winfsp zip make
-      cd ../..                  # fix crlf in git checkout
-      mv $TRAVIS_REPO_SLUG _old
-      git config --global core.autocrlf false
-      git clone _old $TRAVIS_REPO_SLUG
-      cd $TRAVIS_REPO_SLUG
-    fi
+- if [[ $TRAVIS_OS_NAME == linux ]]; then sudo modprobe fuse ; sudo chmod 666 /dev/fuse ; sudo chown root:$USER /etc/fuse.conf ; fi
+- if [[ $TRAVIS_OS_NAME == osx ]]; then brew update && brew tap caskroom/cask && brew cask install osxfuse ; fi
 install:
-  - make vars
+- git fetch --unshallow --tags
+- make vars
+- make build_dep
+script:
+- make check
+- make quicktest
+- make compile_all
 env:
  global:
    - GOTAGS=cmount
-    - GO111MODULE=off
    - secure: gU8gCV9R8Kv/Gn0SmCP37edpfIbPoSvsub48GK7qxJdTU628H0KOMiZW/T0gtV5d67XJZ4eKnhJYlxwwxgSgfejO32Rh5GlYEKT/FuVoH0BD72dM1GDFLSrUiUYOdoHvf/BKIFA3dJFT4lk2ASy4Zh7SEoXHG6goBlqUpYx8hVA=
    - secure: AMjrMAksDy3QwqGqnvtUg8FL/GNVgNqTqhntLF9HSU0njHhX6YurGGnfKdD9vNHlajPQOewvmBjwNLcDWGn2WObdvmh9Ohep0EmOjZ63kliaRaSSQueSd8y0idfqMQAxep0SObOYbEDVmQh0RCAE9wOVKRaPgw98XvgqWGDq5Tw=
    - secure: Uaiveq+/rvQjO03GzvQZV2J6pZfedoFuhdXrLVhhHSeP4ZBca0olw7xaqkabUyP3LkVYXMDSX8EbyeuQT1jfEe5wp5sBdfaDtuYW6heFyjiHIIIbVyBfGXon6db4ETBjOaX/Xt8uktrgNge6qFlj+kpnmpFGxf0jmDLw1zgg7tk=
 addons:
  apt:
    packages:
-      - fuse
-      - libfuse-dev
-      - rpm
-      - pkg-config
-cache:
-  directories:
-    - $HOME/.cache/go-build
+    - fuse
+    - libfuse-dev
+    - rpm
+    - pkg-config
 matrix:
  allow_failures:
-    - go: tip
+  - go: tip
  include:
-    - go: 1.8.x
-      script:
-        - make quicktest
-    - go: 1.9.x
-      script:
-        - make quicktest
-    - go: 1.10.x
-      script:
-        - make quicktest
-    - go: 1.11.x
-      script:
-        - make quicktest
-    - go: 1.12.x
-      env:
-        - GOTAGS=cmount
-      script:
-        - make build_dep
-        - make check
-        - make quicktest
-        - make racequicktest
-        - make compile_all
-    - os: osx
-      go: 1.12.x
-      env:
-        - GOTAGS=  # cmount doesn't work on osx travis for some reason
-      cache:
-        directories:
-          - $HOME/Library/Caches/go-build
-      script:
-        - make
-        - make quicktest
-        - make racequicktest
-    # - os: windows
-    #   go: 1.12.x
-    #   env:
-    #     - GOTAGS=cmount
-    #     - CPATH='C:\Program Files (x86)\WinFsp\inc\fuse'
-    #   #filter_secrets: false     # works around a problem with secrets under windows
-    #   cache:
-    #     directories:
-    #       - ${LocalAppData}/go-build
-    #   script:
-    #     - make
-    #     - make quicktest
-    #     - make racequicktest
-    - go: tip
-      script:
-        - make quicktest
-
+  - os: osx
+    go: "1.10.1"
+    env: GOTAGS=""
 deploy:
  provider: script
  script: make travis_beta
  skip_cleanup: true
  on:
-    repo: ncw/rclone
    all_branches: true
-    go: 1.12.x
-    condition: $TRAVIS_PULL_REQUEST == false && $TRAVIS_OS_NAME != "windows"
+    go: "1.10.1"
+    condition: $TRAVIS_PULL_REQUEST == false
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -21,19 +21,19 @@ with the [latest beta of rclone](https://beta.rclone.org/):
 ## Submitting a pull request ##

 If you find a bug that you'd like to fix, or a new feature that you'd
-like to implement then please submit a pull request via GitHub.
+like to implement then please submit a pull request via Github.

 If it is a big feature then make an issue first so it can be discussed.

 You'll need a Go environment set up with GOPATH set.  See [the Go
 getting started docs](https://golang.org/doc/install) for more info.

-First in your web browser press the fork button on [rclone's GitHub
+First in your web browser press the fork button on [rclone's Github
 page](https://github.com/ncw/rclone).

 Now in your terminal

-    go get -u github.com/ncw/rclone
+    go get github.com/ncw/rclone
    cd $GOPATH/src/github.com/ncw/rclone
    git remote rename origin upstream
    git remote add origin git@github.com:YOURUSER/rclone.git
@@ -64,31 +64,22 @@ packages which you can install with

 Make sure you

-  * Add [documentation](#writing-documentation) for a new feature.
-  * Follow the [commit message guidelines](#commit-messages).
-  * Add [unit tests](#testing) for a new feature
+  * Add documentation for a new feature (see below for where)
+  * Add unit tests for a new feature
  * squash commits down to one per feature
-  * rebase to master with `git rebase master`
+  * rebase to master `git rebase master`

 When you are done with that

-    git push origin my-new-feature
+  git push origin my-new-feature

-Go to the GitHub website and click [Create pull
+Go to the Github website and click [Create pull
 request](https://help.github.com/articles/creating-a-pull-request/).

 You patch will get reviewed and you might get asked to fix some stuff.

 If so, then make the changes in the same branch, squash the commits,
-rebase it to master then push it to GitHub with `--force`.
-
-## Enabling CI for your fork ##
-
-The CI config files for rclone have taken care of forks of the project, so you can enable CI for your fork repo easily.
-
-rclone currently uses [Travis CI](https://travis-ci.org/), [AppVeyor](https://ci.appveyor.com/), and
-[Circle CI](https://circleci.com/) to build the project. To enable them for your fork, simply go into their
-websites, find your fork of rclone, and enable building there.
+rebase it to master then push it to Github with `--force`.

 ## Testing ##

@@ -123,13 +114,6 @@ but they can be run against any of the remotes.
    cd fs/operations
    go test -v -remote TestDrive:

-If you want to use the integration test framework to run these tests
-all together with an HTML report and test retries then from the
-project root:
-
-    go install github.com/ncw/rclone/fstest/test_all
-    test_all -backend drive
-
 If you want to run all the integration tests against all the remotes,
 then change into the project root and run

@@ -182,21 +166,17 @@ with modules beneath.
    * pacer - retries with backoff and paces operations
    * readers - a selection of useful io.Readers
    * rest - a thin abstraction over net/http for REST
-  * vendor - 3rd party code managed by `go mod`
+  * vendor - 3rd party code managed by the dep tool
  * vfs - Virtual FileSystem layer for implementing rclone mount and similar

 ## Writing Documentation ##

 If you are adding a new feature then please update the documentation.

-If you add a new general flag (not for a backend), then document it in
+If you add a new flag, then if it is a general flag, document it in
 `docs/content/docs.md` - the flags there are supposed to be in
-alphabetical order.
-
-If you add a new backend option/flag, then it should be documented in
-the source file in the `Help:` field.  The first line of this is used
-for the flag help, the remainder is shown to the user in `rclone
-config` and is added to the docs with `make backenddocs`.
+alphabetical order.  If it is a remote specific flag, then document it
+in `docs/content/remote.md`.

 The only documentation you need to edit are the `docs/content/*.md`
 files.  The MANUAL.*, rclone.1, web site etc are all auto generated
@@ -215,20 +195,14 @@ file.
 ## Commit messages ##

 Please make the first line of your commit message a summary of the
-change that a user (not a developer) of rclone would like to read, and
-prefix it with the directory of the change followed by a colon.  The
-changelog gets made by looking at just these first lines so make it
-good!
+change, and prefix it with the directory of the change followed by a
+colon.  The changelog gets made by looking at just these first lines
+so make it good!

 If you have more to say about the commit, then enter a blank line and
 carry on the description.  Remember to say why the change was needed -
 the commit itself shows what was changed.

-Writing more is better than less.  Comparing the behaviour before the
-change to that after the change is very useful.  Imagine you are
-writing to yourself in 12 months time when you've forgotten everything
-about what you just did and you need to get up to speed quickly.
-
 If the change fixes an issue then write `Fixes #1234` in the commit
 message.  This can be on the subject line if it will fit.  If you
 don't want to close the associated issue just put `#1234` and the
@@ -255,53 +229,37 @@ Fixes #1498

 ## Adding a dependency ##

-rclone uses the [go
-modules](https://tip.golang.org/cmd/go/#hdr-Modules__module_versions__and_more)
-support in go1.11 and later to manage its dependencies.
+rclone uses the [dep](https://github.com/golang/dep) tool to manage
+its dependencies.  All code that rclone needs for building is stored
+in the `vendor` directory for perfectly reproducable builds.

-**NB** you must be using go1.11 or above to add a dependency to
-rclone.  Rclone will still build with older versions of go, but we use
-the `go mod` command for dependencies which is only in go1.11 and
-above.
+The `vendor` directory is entirely managed by the `dep` tool.

-rclone can be built with modules outside of the GOPATH, but for
-backwards compatibility with older go versions, rclone also maintains
-a `vendor` directory with all the external code rclone needs for
-building.
+To add a new dependency, run `dep ensure` and `dep` will pull in the
+new dependency to the `vendor` directory and update the `Gopkg.lock`
+file.

-The `vendor` directory is entirely managed by the `go mod` tool, do
-not add things manually.
+You can add constraints on that package in the `Gopkg.toml` file (see
+the `dep` documentation), but don't unless you really need to.

-To add a dependency `github.com/ncw/new_dependency` see the
-instructions below.  These will fetch the dependency, add it to
-`go.mod` and `go.sum` and vendor it for older go versions.
-
-    GO111MODULE=on go get github.com/ncw/new_dependency
-    GO111MODULE=on go mod vendor
-
-You can add constraints on that package when doing `go get` (see the
-go docs linked above), but don't unless you really need to.
-
-Please check in the changes generated by `go mod` including the
-`vendor` directory and `go.mod` and `go.sum` in a single commit
-separate from any other code changes with the title "vendor: add
-github.com/ncw/new_dependency".  Remember to `git add` any new files
-in `vendor`.
+Please check in the changes generated by `dep` including the `vendor`
+directory and `Godep.toml` and `Godep.lock` in a single commit
+separate from any other code changes.  Watch out for new files in
+`vendor`.

 ## Updating a dependency ##

 If you need to update a dependency then run

-    GO111MODULE=on go get -u github.com/pkg/errors
-    GO111MODULE=on go mod vendor
+    dep ensure -update github.com/pkg/errors

 Check in in a single commit as above.

 ## Updating all the dependencies ##

 In order to update all the dependencies then run `make update`.  This
-just uses the go modules to update all the modules to their latest
-stable release. Check in the changes in a single commit as above.
+just runs `dep ensure -update`.  Check in the changes in a single
+commit as above.

 This should be done early in the release cycle to pick up new versions
 of packages in time for them to get some testing.
@@ -350,13 +308,7 @@ Unit tests

 Integration tests

-  * Add your backend to `fstest/test_all/config.yaml`
-      * Once you've done that then you can use the integration test framework from the project root:
-      * go install ./...
-      * test_all -backend remote
-
-Or if you want to run the integration tests manually:
-
+  * Add your fs to `fstest/test_all/test_all.go`
  * Make sure integration tests pass with
      * `cd fs/operations`
      * `go test -v -remote TestRemote:`
@@ -371,10 +323,11 @@ See the [testing](#testing) section for more information on integration tests.

 Add your fs to the docs - you'll need to pick an icon for it from [fontawesome](http://fontawesome.io/icons/).  Keep lists of remotes in alphabetical order but with the local file system last.

-  * `README.md` - main GitHub page
-  * `docs/content/remote.md` - main docs page (note the backend options are automatically added to this file with `make backenddocs`)
+  * `README.md` - main Github page
+  * `docs/content/remote.md` - main docs page
  * `docs/content/overview.md` - overview docs
  * `docs/content/docs.md` - list of remotes in config section
  * `docs/content/about.md` - front page of rclone.org
  * `docs/layouts/chrome/navbar.html` - add it to the website navigation
  * `bin/make_manual.py` - add the page to the `docs` constant
+  * `cmd/cmd.go` - the main help for rclone
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -0,0 +1,490 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  branch = "master"
+  name = "bazil.org/fuse"
+  packages = [
+    ".",
+    "fs",
+    "fuseutil"
+  ]
+  revision = "65cc252bf6691cb3c7014bcb2c8dc29de91e3a7e"
+
+[[projects]]
+  name = "cloud.google.com/go"
+  packages = ["compute/metadata"]
+  revision = "0fd7230b2a7505833d5f69b75cbd6c9582401479"
+  version = "v0.23.0"
+
+[[projects]]
+  name = "github.com/Azure/azure-sdk-for-go"
+  packages = [
+    "storage",
+    "version"
+  ]
+  revision = "fbe7db0e3f9793ba3e5704efbab84f51436c136e"
+  version = "v18.0.0"
+
+[[projects]]
+  name = "github.com/Azure/go-autorest"
+  packages = [
+    "autorest",
+    "autorest/adal",
+    "autorest/azure",
+    "autorest/date"
+  ]
+  revision = "1f7cd6cfe0adea687ad44a512dfe76140f804318"
+  version = "v10.12.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/Unknwon/goconfig"
+  packages = ["."]
+  revision = "ef1e4c783f8f0478bd8bff0edb3dd0bade552599"
+
+[[projects]]
+  name = "github.com/VividCortex/ewma"
+  packages = ["."]
+  revision = "b24eb346a94c3ba12c1da1e564dbac1b498a77ce"
+  version = "v1.1.1"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/a8m/tree"
+  packages = ["."]
+  revision = "3cf936ce15d6100c49d9c75f79c220ae7e579599"
+
+[[projects]]
+  name = "github.com/abbot/go-http-auth"
+  packages = ["."]
+  revision = "0ddd408d5d60ea76e320503cc7dd091992dee608"
+  version = "v0.4.0"
+
+[[projects]]
+  name = "github.com/aws/aws-sdk-go"
+  packages = [
+    "aws",
+    "aws/awserr",
+    "aws/awsutil",
+    "aws/client",
+    "aws/client/metadata",
+    "aws/corehandlers",
+    "aws/credentials",
+    "aws/credentials/ec2rolecreds",
+    "aws/credentials/endpointcreds",
+    "aws/credentials/stscreds",
+    "aws/csm",
+    "aws/defaults",
+    "aws/ec2metadata",
+    "aws/endpoints",
+    "aws/request",
+    "aws/session",
+    "aws/signer/v4",
+    "internal/sdkio",
+    "internal/sdkrand",
+    "internal/shareddefaults",
+    "private/protocol",
+    "private/protocol/eventstream",
+    "private/protocol/eventstream/eventstreamapi",
+    "private/protocol/query",
+    "private/protocol/query/queryutil",
+    "private/protocol/rest",
+    "private/protocol/restxml",
+    "private/protocol/xml/xmlutil",
+    "service/s3",
+    "service/s3/s3iface",
+    "service/s3/s3manager",
+    "service/sts"
+  ]
+  revision = "bfc1a07cf158c30c41a3eefba8aae043d0bb5bff"
+  version = "v1.14.8"
+
+[[projects]]
+  name = "github.com/billziss-gh/cgofuse"
+  packages = ["fuse"]
+  revision = "ea66f9809c71af94522d494d3d617545662ea59d"
+  version = "v1.1.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/coreos/bbolt"
+  packages = ["."]
+  revision = "af9db2027c98c61ecd8e17caa5bd265792b9b9a2"
+
+[[projects]]
+  name = "github.com/cpuguy83/go-md2man"
+  packages = ["md2man"]
+  revision = "20f5889cbdc3c73dbd2862796665e7c465ade7d1"
+  version = "v1.0.8"
+
+[[projects]]
+  name = "github.com/davecgh/go-spew"
+  packages = ["spew"]
+  revision = "346938d642f2ec3594ed81d874461961cd0faa76"
+  version = "v1.1.0"
+
+[[projects]]
+  name = "github.com/dgrijalva/jwt-go"
+  packages = ["."]
+  revision = "06ea1031745cb8b3dab3f6a236daf2b0aa468b7e"
+  version = "v3.2.0"
+
+[[projects]]
+  name = "github.com/djherbis/times"
+  packages = ["."]
+  revision = "95292e44976d1217cf3611dc7c8d9466877d3ed5"
+  version = "v1.0.1"
+
+[[projects]]
+  name = "github.com/dropbox/dropbox-sdk-go-unofficial"
+  packages = [
+    "dropbox",
+    "dropbox/async",
+    "dropbox/common",
+    "dropbox/file_properties",
+    "dropbox/files",
+    "dropbox/seen_state",
+    "dropbox/sharing",
+    "dropbox/team_common",
+    "dropbox/team_policies",
+    "dropbox/users",
+    "dropbox/users_common"
+  ]
+  revision = "7afa861bfde5a348d765522b303b6fbd9d250155"
+  version = "v4.1.0"
+
+[[projects]]
+  name = "github.com/go-ini/ini"
+  packages = ["."]
+  revision = "06f5f3d67269ccec1fe5fe4134ba6e982984f7f5"
+  version = "v1.37.0"
+
+[[projects]]
+  name = "github.com/golang/protobuf"
+  packages = ["proto"]
+  revision = "b4deda0973fb4c70b50d226b1af49f3da59f5265"
+  version = "v1.1.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/google/go-querystring"
+  packages = ["query"]
+  revision = "53e6ce116135b80d037921a7fdd5138cf32d7a8a"
+
+[[projects]]
+  name = "github.com/inconshreveable/mousetrap"
+  packages = ["."]
+  revision = "76626ae9c91c4f2a10f34cad8ce83ea42c93bb75"
+  version = "v1.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/jlaffaye/ftp"
+  packages = ["."]
+  revision = "2403248fa8cc9f7909862627aa7337f13f8e0bf1"
+
+[[projects]]
+  name = "github.com/jmespath/go-jmespath"
+  packages = ["."]
+  revision = "0b12d6b5"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/kardianos/osext"
+  packages = ["."]
+  revision = "ae77be60afb1dcacde03767a8c37337fad28ac14"
+
+[[projects]]
+  name = "github.com/kr/fs"
+  packages = ["."]
+  revision = "1455def202f6e05b95cc7bfc7e8ae67ae5141eba"
+  version = "v0.1.0"
+
+[[projects]]
+  name = "github.com/marstr/guid"
+  packages = ["."]
+  revision = "8bd9a64bf37eb297b492a4101fb28e80ac0b290f"
+  version = "v1.1.0"
+
+[[projects]]
+  name = "github.com/mattn/go-runewidth"
+  packages = ["."]
+  revision = "9e777a8366cce605130a531d2cd6363d07ad7317"
+  version = "v0.0.2"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/ncw/go-acd"
+  packages = ["."]
+  revision = "887eb06ab6a255fbf5744b5812788e884078620a"
+
+[[projects]]
+  name = "github.com/ncw/swift"
+  packages = ["."]
+  revision = "b2a7479cf26fa841ff90dd932d0221cb5c50782d"
+  version = "v1.0.39"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/nsf/termbox-go"
+  packages = ["."]
+  revision = "5c94acc5e6eb520f1bcd183974e01171cc4c23b3"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/okzk/sdnotify"
+  packages = ["."]
+  revision = "ed8ca104421a21947710335006107540e3ecb335"
+
+[[projects]]
+  name = "github.com/patrickmn/go-cache"
+  packages = ["."]
+  revision = "a3647f8e31d79543b2d0f0ae2fe5c379d72cedc0"
+  version = "v2.1.0"
+
+[[projects]]
+  name = "github.com/pengsrc/go-shared"
+  packages = [
+    "buffer",
+    "check",
+    "convert",
+    "log",
+    "reopen"
+  ]
+  revision = "807ee759d82c84982a89fb3dc875ef884942f1e5"
+  version = "v0.2.0"
+
+[[projects]]
+  name = "github.com/pkg/errors"
+  packages = ["."]
+  revision = "645ef00459ed84a119197bfb8d8205042c6df63d"
+  version = "v0.8.0"
+
+[[projects]]
+  name = "github.com/pkg/sftp"
+  packages = ["."]
+  revision = "57673e38ea946592a59c26592b7e6fbda646975b"
+  version = "1.8.0"
+
+[[projects]]
+  name = "github.com/pmezard/go-difflib"
+  packages = ["difflib"]
+  revision = "792786c7400a136282c1664665ae0a8db921c6c2"
+  version = "v1.0.0"
+
+[[projects]]
+  name = "github.com/rfjakob/eme"
+  packages = ["."]
+  revision = "01668ae55fe0b79a483095689043cce3e80260db"
+  version = "v1.1"
+
+[[projects]]
+  name = "github.com/russross/blackfriday"
+  packages = ["."]
+  revision = "55d61fa8aa702f59229e6cff85793c22e580eaf5"
+  version = "v1.5.1"
+
+[[projects]]
+  name = "github.com/satori/go.uuid"
+  packages = ["."]
+  revision = "f58768cc1a7a7e77a3bd49e98cdd21419399b6a3"
+  version = "v1.2.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/sevlyar/go-daemon"
+  packages = ["."]
+  revision = "f9261e73885de99b1647d68bedadf2b9a99ad11f"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/skratchdot/open-golang"
+  packages = ["open"]
+  revision = "75fb7ed4208cf72d323d7d02fd1a5964a7a9073c"
+
+[[projects]]
+  name = "github.com/spf13/cobra"
+  packages = [
+    ".",
+    "doc"
+  ]
+  revision = "ef82de70bb3f60c65fb8eebacbb2d122ef517385"
+  version = "v0.0.3"
+
+[[projects]]
+  name = "github.com/spf13/pflag"
+  packages = ["."]
+  revision = "583c0c0531f06d5278b7d917446061adc344b5cd"
+  version = "v1.0.1"
+
+[[projects]]
+  name = "github.com/stretchr/testify"
+  packages = [
+    "assert",
+    "require"
+  ]
+  revision = "f35b8ab0b5a2cef36673838d662e249dd9c94686"
+  version = "v1.2.2"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/t3rm1n4l/go-mega"
+  packages = ["."]
+  revision = "57978a63bd3f91fa7e188b751a7e7e6dd4e33813"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/xanzy/ssh-agent"
+  packages = ["."]
+  revision = "ba9c9e33906f58169366275e3450db66139a31a9"
+
+[[projects]]
+  name = "github.com/yunify/qingstor-sdk-go"
+  packages = [
+    ".",
+    "config",
+    "logger",
+    "request",
+    "request/builder",
+    "request/data",
+    "request/errors",
+    "request/signer",
+    "request/unpacker",
+    "service",
+    "utils"
+  ]
+  revision = "4f9ac88c5fec7350e960aabd0de1f1ede0ad2895"
+  version = "v2.2.14"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/crypto"
+  packages = [
+    "bcrypt",
+    "blowfish",
+    "curve25519",
+    "ed25519",
+    "ed25519/internal/edwards25519",
+    "internal/chacha20",
+    "internal/subtle",
+    "nacl/secretbox",
+    "pbkdf2",
+    "poly1305",
+    "salsa20/salsa",
+    "scrypt",
+    "ssh",
+    "ssh/agent",
+    "ssh/terminal"
+  ]
+  revision = "027cca12c2d63e3d62b670d901e8a2c95854feec"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/net"
+  packages = [
+    "context",
+    "context/ctxhttp",
+    "html",
+    "html/atom",
+    "http/httpguts",
+    "http2",
+    "http2/hpack",
+    "idna",
+    "publicsuffix",
+    "webdav",
+    "webdav/internal/xml",
+    "websocket"
+  ]
+  revision = "db08ff08e8622530d9ed3a0e8ac279f6d4c02196"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/oauth2"
+  packages = [
+    ".",
+    "google",
+    "internal",
+    "jws",
+    "jwt"
+  ]
+  revision = "1e0a3fa8ba9a5c9eb35c271780101fdaf1b205d7"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/sys"
+  packages = [
+    "unix",
+    "windows"
+  ]
+  revision = "6c888cc515d3ed83fc103cf1d84468aad274b0a7"
+
+[[projects]]
+  name = "golang.org/x/text"
+  packages = [
+    "collate",
+    "collate/build",
+    "internal/colltab",
+    "internal/gen",
+    "internal/tag",
+    "internal/triegen",
+    "internal/ucd",
+    "language",
+    "secure/bidirule",
+    "transform",
+    "unicode/bidi",
+    "unicode/cldr",
+    "unicode/norm",
+    "unicode/rangetable"
+  ]
+  revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
+  version = "v0.3.0"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/time"
+  packages = ["rate"]
+  revision = "fbb02b2291d28baffd63558aa44b4b56f178d650"
+
+[[projects]]
+  branch = "master"
+  name = "google.golang.org/api"
+  packages = [
+    "drive/v3",
+    "gensupport",
+    "googleapi",
+    "googleapi/internal/uritemplates",
+    "storage/v1"
+  ]
+  revision = "2eea9ba0a3d94f6ab46508083e299a00bbbc65f6"
+
+[[projects]]
+  name = "google.golang.org/appengine"
+  packages = [
+    ".",
+    "internal",
+    "internal/app_identity",
+    "internal/base",
+    "internal/datastore",
+    "internal/log",
+    "internal/modules",
+    "internal/remote_api",
+    "internal/urlfetch",
+    "log",
+    "urlfetch"
+  ]
+  revision = "b1f26356af11148e710935ed1ac8a7f5702c7612"
+  version = "v1.1.0"
+
+[[projects]]
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183"
+  version = "v2.2.1"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "c1378c5fc821e27711155958ff64b3c74b56818ba4733dbfe0c86d518c32880e"
+  solver-name = "gps-cdcl"
+  solver-version = 1
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -0,0 +1,11 @@
+# pin this to master to pull in the macOS changes
+# can likely remove for 1.43
+[[override]]
+  branch = "master"
+  name = "github.com/sevlyar/go-daemon"
+
+# pin this to master to pull in the fix for linux/mips
+# can likely remove for 1.43
+[[override]]
+  branch = "master"
+  name = "github.com/coreos/bbolt"
--- a/ISSUE_TEMPLATE.md
+++ b/ISSUE_TEMPLATE.md
@@ -0,0 +1,43 @@
+<!--
+
+Hi!
+
+We understand you are having a problem with rclone or have an idea for an improvement - we want to help you with that!
+
+If you've just got a question or aren't sure if you've found a bug then please use the rclone forum
+
+    https://forum.rclone.org/
+
+instead of filing an issue.  We'll reply quickly and it won't increase our massive issue backlog.
+
+If you think you might have found a bug, please can you try to replicate it with the latest beta?
+
+    https://beta.rclone.org/
+    
+If you can still replicate it with the latest beta, then please fill in the info below which makes our lives much easier.  A log with -vv will make our day :-)
+
+If you have an idea for an improvement, then please search the old issues first and if you don't find your idea, make a new issue.
+
+Thanks
+
+The Rclone Developers
+
+-->
+
+#### What is the problem you are having with rclone?
+
+
+#### What is your rclone version (eg output from `rclone -V`)
+
+
+#### Which OS you are using and how many bits (eg Windows 7, 64 bit)
+
+
+####  Which cloud storage system are you using? (eg Google Drive)
+
+
+#### The command you were trying to run (eg `rclone copy /tmp remote:tmp`)
+
+
+#### A log from the command with the `-vv` flag (eg output from `rclone -vv copy /tmp remote:tmp`)
+
--- a/MAINTAINERS.md
+++ b/MAINTAINERS.md
@@ -1,17 +1,12 @@
 # Maintainers guide for rclone #

-Current active maintainers of rclone are:
+Current active maintainers of rclone are

-| Name             | GitHub ID   | Specific Responsibilities    |
-| :--------------- | :---------- | :--------------------------  |
-| Nick Craig-Wood  | @ncw        | overall project health       |
-| Stefan Breunig   | @breunigs   |                              |
-| Ishuah Kariuki   | @ishuah     |                              |
-| Remus Bunduc     | @remusb     | cache backend                |
-| Fabian Möller    | @B4dM4n     |                              |
-| Alex Chen        | @Cnly       | onedrive backend             |
-| Sandeep Ummadi   | @sandeepkru | azureblob backend            |
-| Sebastian Bünger | @buengese   | jottacloud & yandex backends |
+  * Nick Craig-Wood @ncw
+  * Stefan Breunig @breunigs
+  * Ishuah Kariuki @ishuah
+  * Remus Bunduc @remusb - cache subsystem maintainer
+  * Fabian Möller @B4dM4n

 **This is a work in progress Draft**

@@ -61,7 +56,7 @@ Close tickets as soon as you can - make sure they are tagged with a release.  Po

 Try to process pull requests promptly!

-Merging pull requests on GitHub itself works quite well now-a-days so you can squash and rebase or rebase pull requests.  rclone doesn't use merge commits.  Use the squash and rebase option if you need to edit the commit message.
+Merging pull requests on Github itself works quite well now-a-days so you can squash and rebase or rebase pull requests.  rclone doesn't use merge commits.  Use the squash and rebase option if you need to edit the commit message.

 After merging the commit, in your local master branch, do `git pull` then run `bin/update-authors.py` to update the authors file then `git push`.

--- a/MANUAL.html
+++ b/MANUAL.html
--- a/MANUAL.md
+++ b/MANUAL.md
--- a/MANUAL.txt
+++ b/MANUAL.txt
--- a/117
+++ b/117
@@ -1,9 +1,5 @@
 SHELL = bash
 BRANCH := $(or $(APPVEYOR_REPO_BRANCH),$(TRAVIS_BRANCH),$(shell git rev-parse --abbrev-ref HEAD))
-LAST_TAG := $(shell git describe --tags --abbrev=0)
-ifeq ($(BRANCH),$(LAST_TAG))
-	BRANCH := master
-endif
 TAG_BRANCH := -$(BRANCH)
 BRANCH_PATH := branch/
 ifeq ($(subst HEAD,,$(subst master,,$(BRANCH))),)
@@ -11,12 +7,12 @@ ifeq ($(subst HEAD,,$(subst master,,$(BRANCH))),)
 	BRANCH_PATH :=
 endif
 TAG := $(shell echo $$(git describe --abbrev=8 --tags | sed 's/-\([0-9]\)-/-00\1-/; s/-\([0-9][0-9]\)-/-0\1-/'))$(TAG_BRANCH)
-NEW_TAG := $(shell echo $(LAST_TAG) | perl -lpe 's/v//; $$_ += 0.01; $$_ = sprintf("v%.2f.0", $$_)')
-ifneq ($(TAG),$(LAST_TAG))
-	TAG := $(TAG)-beta
-endif
+LAST_TAG := $(shell git describe --tags --abbrev=0)
+NEW_TAG := $(shell echo $(LAST_TAG) | perl -lpe 's/v//; $$_ += 0.01; $$_ = sprintf("v%.2f", $$_)')
 GO_VERSION := $(shell go version)
 GO_FILES := $(shell go list ./... | grep -v /vendor/ )
+# Run full tests if go >= go1.9
+FULL_TESTS := $(shell go version | perl -lne 'print "go$$1.$$2" if /go(\d+)\.(\d+)/ && ($$1 > 1 || $$2 >= 9)')
 BETA_PATH := $(BRANCH_PATH)$(TAG)
 BETA_URL := https://beta.rclone.org/$(BETA_PATH)/
 BETA_UPLOAD_ROOT := memstore:beta-rclone-org
@@ -40,6 +36,7 @@ vars:
 	@echo LAST_TAG="'$(LAST_TAG)'"
 	@echo NEW_TAG="'$(NEW_TAG)'"
 	@echo GO_VERSION="'$(GO_VERSION)'"
+	@echo FULL_TESTS="'$(FULL_TESTS)'"
 	@echo BETA_URL="'$(BETA_URL)'"

 version:
@@ -47,29 +44,47 @@ version:

 # Full suite of integration tests
 test:	rclone
-	go install --ldflags "-s -X github.com/ncw/rclone/fs.Version=$(TAG)" $(BUILDTAGS) github.com/ncw/rclone/fstest/test_all
-	-test_all 2>&1 | tee test_all.log
-	@echo "Written logs in test_all.log"
+	go install github.com/ncw/rclone/fstest/test_all
+	-go test -v -count 1 $(BUILDTAGS) $(GO_FILES) 2>&1 | tee test.log
+	-test_all github.com/ncw/rclone/fs/operations github.com/ncw/rclone/fs/sync 2>&1 | tee fs/test_all.log
+	@echo "Written logs in test.log and fs/test_all.log"

 # Quick test
 quicktest:
 	RCLONE_CONFIG="/notfound" go test $(BUILDTAGS) $(GO_FILES)
-
-racequicktest:
+ifdef FULL_TESTS
 	RCLONE_CONFIG="/notfound" go test $(BUILDTAGS) -cpu=2 -race $(GO_FILES)
+endif

 # Do source code quality checks
 check:	rclone
-	@# we still run go vet for -printfuncs which golangci-lint doesn't do yet
-	@# see: https://github.com/golangci/golangci-lint/issues/204
-	@echo "-- START CODE QUALITY REPORT -------------------------------"
-	@go vet $(BUILDTAGS) -printfuncs Debugf,Infof,Logf,Errorf ./...
-	@golangci-lint run ./...
-	@echo "-- END CODE QUALITY REPORT ---------------------------------"
+ifdef FULL_TESTS
+	go vet $(BUILDTAGS) -printfuncs Debugf,Infof,Logf,Errorf ./...
+	errcheck $(BUILDTAGS) ./...
+	find . -name \*.go | grep -v /vendor/ | xargs goimports -d | grep . ; test $$? -eq 1
+	go list ./... | xargs -n1 golint | grep -E -v '(StorageUrl|CdnUrl)' ; test $$? -eq 1
+else
+	@echo Skipping source quality tests as version of go too old
+endif
+
+gometalinter_install:
+	go get -u github.com/alecthomas/gometalinter
+	gometalinter --install --update
+
+# We aren't using gometalinter as the default linter yet because
+# 1. it doesn't support build tags: https://github.com/alecthomas/gometalinter/issues/275
+# 2. can't get -printfuncs working with the vet linter
+gometalinter:
+	gometalinter ./...

 # Get the build dependencies
 build_dep:
-	go run bin/get-github-release.go -extract golangci-lint golangci/golangci-lint 'golangci-lint-.*\.tar\.gz'
+ifdef FULL_TESTS
+	go get -u github.com/kisielk/errcheck
+	go get -u golang.org/x/tools/cmd/goimports
+	go get -u github.com/golang/lint/golint
+	go get -u github.com/tools/godep
+endif

 # Get the release dependencies
 release_dep:
@@ -78,16 +93,15 @@ release_dep:

 # Update dependencies
 update:
-	GO111MODULE=on go get -u ./...
-	GO111MODULE=on go mod tidy
-	GO111MODULE=on go mod vendor
+	go get -u github.com/golang/dep/cmd/dep
+	dep ensure -update -v

-doc:	rclone.1 MANUAL.html MANUAL.txt rcdocs commanddocs
+doc:	rclone.1 MANUAL.html MANUAL.txt

 rclone.1:	MANUAL.md
 	pandoc -s --from markdown --to man MANUAL.md -o rclone.1

-MANUAL.md:	bin/make_manual.py docs/content/*.md commanddocs backenddocs
+MANUAL.md:	bin/make_manual.py docs/content/*.md commanddocs
 	./bin/make_manual.py

 MANUAL.html:	MANUAL.md
@@ -97,10 +111,7 @@ MANUAL.txt:	MANUAL.md
 	pandoc -s --from markdown --to plain MANUAL.md -o MANUAL.txt

 commanddocs: rclone
-	XDG_CACHE_HOME="" XDG_CONFIG_HOME="" HOME="\$$HOME" USER="\$$USER" rclone gendocs docs/content/commands/
-
-backenddocs: rclone bin/make_backend_docs.py
-	./bin/make_backend_docs.py
+	rclone gendocs docs/content/commands/

 rcdocs: rclone
 	bin/make_rc_docs.sh
@@ -135,8 +146,8 @@ check_sign:
 	cd build && gpg --verify SHA256SUMS && gpg --decrypt SHA256SUMS | sha256sum -c

 upload:
-	rclone -P copy build/ memstore:downloads-rclone-org/$(TAG)
-	rclone lsf build --files-only --include '*.{zip,deb,rpm}' --include version.txt | xargs -i bash -c 'i={}; j="$$i"; [[ $$i =~ (.*)(-v[0-9\.]+-)(.*) ]] && j=$${BASH_REMATCH[1]}-current-$${BASH_REMATCH[3]}; rclone copyto -v "memstore:downloads-rclone-org/$(TAG)/$$i" "memstore:downloads-rclone-org/$$j"'
+	rclone -v copy --exclude '*current*' build/ memstore:downloads-rclone-org/$(TAG)
+	rclone -v copy --include '*current*' --include version.txt build/ memstore:downloads-rclone-org

 upload_github:
 	./bin/upload-github $(TAG)
@@ -145,15 +156,19 @@ cross:	doc
 	go run bin/cross-compile.go -release current $(BUILDTAGS) $(TAG)

 beta:
-	go run bin/cross-compile.go $(BUILDTAGS) $(TAG)
-	rclone -v copy build/ memstore:pub-rclone-org/$(TAG)
-	@echo Beta release ready at https://pub.rclone.org/$(TAG)/
+	go run bin/cross-compile.go $(BUILDTAGS) $(TAG)β
+	rclone -v copy build/ memstore:pub-rclone-org/$(TAG)β
+	@echo Beta release ready at https://pub.rclone.org/$(TAG)%CE%B2/

 log_since_last_release:
 	git log $(LAST_TAG)..

 compile_all:
-	go run bin/cross-compile.go -parallel 8 -compile-only $(BUILDTAGS) $(TAG)
+ifdef FULL_TESTS
+	go run bin/cross-compile.go -parallel 8 -compile-only $(BUILDTAGS) $(TAG)β
+else
+	@echo Skipping compile all as version of go too old
+endif

 appveyor_upload:
 	rclone --config bin/travis.rclone.conf -v copy --exclude '*beta-latest*' build/ $(BETA_UPLOAD)
@@ -162,38 +177,29 @@ ifndef BRANCH_PATH
 endif
 	@echo Beta release ready at $(BETA_URL)

-circleci_upload:
-	./rclone --config bin/travis.rclone.conf -v copy build/ $(BETA_UPLOAD)/testbuilds
-ifndef BRANCH_PATH
-	./rclone --config bin/travis.rclone.conf -v copy build/ $(BETA_UPLOAD_ROOT)/test/testbuilds-latest
-endif
-	@echo Beta release ready at $(BETA_URL)/testbuilds
-
 BUILD_FLAGS := -exclude "^(windows|darwin)/"
 ifeq ($(TRAVIS_OS_NAME),osx)
 	BUILD_FLAGS := -include "^darwin/" -cgo
 endif
-ifeq ($(TRAVIS_OS_NAME),windows)
-# BUILD_FLAGS := -include "^windows/" -cgo
-# 386 doesn't build yet
-	BUILD_FLAGS := -include "^windows/amd64" -cgo
-endif

 travis_beta:
 ifeq ($(TRAVIS_OS_NAME),linux)
-	go run bin/get-github-release.go -extract nfpm goreleaser/nfpm 'nfpm_.*\.tar.gz'
+	go run bin/get-github-release.go -extract nfpm goreleaser/nfpm 'nfpm_.*_Linux_x86_64.tar.gz'
 endif
 	git log $(LAST_TAG).. > /tmp/git-log.txt
-	go run bin/cross-compile.go -release beta-latest -git-log /tmp/git-log.txt $(BUILD_FLAGS) -parallel 8 $(BUILDTAGS) $(TAG)
+	go run bin/cross-compile.go -release beta-latest -git-log /tmp/git-log.txt $(BUILD_FLAGS) -parallel 8 $(BUILDTAGS) $(TAG)β
 	rclone --config bin/travis.rclone.conf -v copy --exclude '*beta-latest*' build/ $(BETA_UPLOAD)
 ifndef BRANCH_PATH
 	rclone --config bin/travis.rclone.conf -v copy --include '*beta-latest*' --include version.txt build/ $(BETA_UPLOAD_ROOT)
 endif
 	@echo Beta release ready at $(BETA_URL)

-# Fetch the binary builds from travis and appveyor
-fetch_binaries:
-	rclone -P sync $(BETA_UPLOAD) build/
+# Fetch the windows builds from appveyor
+fetch_windows:
+	rclone -v copy --include 'rclone-v*-windows-*.zip' $(BETA_UPLOAD) build/
+	-#cp -av build/rclone-v*-windows-386.zip build/rclone-current-windows-386.zip
+	-#cp -av build/rclone-v*-windows-amd64.zip build/rclone-current-windows-amd64.zip
+	md5sum build/rclone-*-windows-*.zip | sort

 serve:	website
 	cd docs && hugo server -v -w
@@ -204,10 +210,10 @@ tag:	doc
 	echo -e "package fs\n\n// Version of rclone\nvar Version = \"$(NEW_TAG)\"\n" | gofmt > fs/version.go
 	echo -n "$(NEW_TAG)" > docs/layouts/partials/version.html
 	git tag -s -m "Version $(NEW_TAG)" $(NEW_TAG)
-	bin/make_changelog.py $(LAST_TAG) $(NEW_TAG) > docs/content/changelog.md.new
-	mv docs/content/changelog.md.new docs/content/changelog.md
 	@echo "Edit the new changelog in docs/content/changelog.md"
-	@echo "Then commit all the changes"
+	@echo "  * $(NEW_TAG) -" `date -I` >> docs/content/changelog.md
+	@git log $(LAST_TAG)..$(NEW_TAG) --oneline >> docs/content/changelog.md
+	@echo "Then commit the changes"
 	@echo git commit -m \"Version $(NEW_TAG)\" -a -v
 	@echo "And finally run make retag before make cross etc"

@@ -220,3 +226,4 @@ startdev:

 winzip:
 	zip -9 rclone-$(TAG).zip rclone.exe
+
--- a/README.md
+++ b/README.md
@@ -2,11 +2,10 @@

 [Website](https://rclone.org) |
 [Documentation](https://rclone.org/docs/) |
-[Download](https://rclone.org/downloads/) | 
 [Contributing](CONTRIBUTING.md) |
 [Changelog](https://rclone.org/changelog/) |
 [Installation](https://rclone.org/install/) |
-[Forum](https://forum.rclone.org/) | 
+[Forum](https://forum.rclone.org/)
 [G+](https://google.com/+RcloneOrg)

 [![Build Status](https://travis-ci.org/ncw/rclone.svg?branch=master)](https://travis-ci.org/ncw/rclone)
@@ -14,84 +13,49 @@
 [![CircleCI](https://circleci.com/gh/ncw/rclone/tree/master.svg?style=svg)](https://circleci.com/gh/ncw/rclone/tree/master)
 [![GoDoc](https://godoc.org/github.com/ncw/rclone?status.svg)](https://godoc.org/github.com/ncw/rclone) 

-# Rclone
+Rclone is a command line program to sync files and directories to and from

-Rclone *("rsync for cloud storage")* is a command line program to sync files and directories to and from different cloud storage providers.
+  * Amazon Drive
+  * Amazon S3 / Dreamhost / Ceph / Minio / Wasabi
+  * Backblaze B2
+  * Box
+  * Dropbox
+  * FTP
+  * Google Cloud Storage
+  * Google Drive
+  * HTTP
+  * Hubic
+  * Mega
+  * Microsoft Azure Blob Storage
+  * Microsoft OneDrive
+  * OpenDrive
+  * Openstack Swift / Rackspace cloud files / Memset Memstore / OVH / Oracle Cloud Storage
+  * pCloud
+  * QingStor
+  * SFTP
+  * Webdav / Owncloud / Nextcloud
+  * Yandex Disk
+  * The local filesystem

-## Storage providers
+Features

-  * Alibaba Cloud (Aliyun) Object Storage System (OSS) [:page_facing_up:](https://rclone.org/s3/#alibaba-oss)
-  * Amazon Drive [:page_facing_up:](https://rclone.org/amazonclouddrive/) ([See note](https://rclone.org/amazonclouddrive/#status))
-  * Amazon S3 [:page_facing_up:](https://rclone.org/s3/)
-  * Backblaze B2 [:page_facing_up:](https://rclone.org/b2/)
-  * Box [:page_facing_up:](https://rclone.org/box/)
-  * Ceph [:page_facing_up:](https://rclone.org/s3/#ceph)
-  * DigitalOcean Spaces [:page_facing_up:](https://rclone.org/s3/#digitalocean-spaces)
-  * Dreamhost [:page_facing_up:](https://rclone.org/s3/#dreamhost)
-  * Dropbox [:page_facing_up:](https://rclone.org/dropbox/)
-  * FTP [:page_facing_up:](https://rclone.org/ftp/)
-  * Google Cloud Storage [:page_facing_up:](https://rclone.org/googlecloudstorage/)
-  * Google Drive [:page_facing_up:](https://rclone.org/drive/)
-  * HTTP [:page_facing_up:](https://rclone.org/http/)
-  * Hubic [:page_facing_up:](https://rclone.org/hubic/)
-  * Jottacloud [:page_facing_up:](https://rclone.org/jottacloud/)
-  * IBM COS S3 [:page_facing_up:](https://rclone.org/s3/#ibm-cos-s3)
-  * Koofr [:page_facing_up:](https://rclone.org/koofr/)
-  * Memset Memstore [:page_facing_up:](https://rclone.org/swift/)
-  * Mega [:page_facing_up:](https://rclone.org/mega/)
-  * Microsoft Azure Blob Storage [:page_facing_up:](https://rclone.org/azureblob/)
-  * Microsoft OneDrive [:page_facing_up:](https://rclone.org/onedrive/)
-  * Minio [:page_facing_up:](https://rclone.org/s3/#minio)
-  * Nextcloud [:page_facing_up:](https://rclone.org/webdav/#nextcloud)
-  * OVH [:page_facing_up:](https://rclone.org/swift/)
-  * OpenDrive [:page_facing_up:](https://rclone.org/opendrive/)
-  * OpenStack Swift [:page_facing_up:](https://rclone.org/swift/)
-  * Oracle Cloud Storage [:page_facing_up:](https://rclone.org/swift/)
-  * ownCloud [:page_facing_up:](https://rclone.org/webdav/#owncloud)
-  * pCloud [:page_facing_up:](https://rclone.org/pcloud/)
-  * put.io [:page_facing_up:](https://rclone.org/webdav/#put-io)
-  * QingStor [:page_facing_up:](https://rclone.org/qingstor/)
-  * Rackspace Cloud Files [:page_facing_up:](https://rclone.org/swift/)
-  * Scaleway [:page_facing_up:](https://rclone.org/s3/#scaleway)
-  * SFTP [:page_facing_up:](https://rclone.org/sftp/)
-  * Wasabi [:page_facing_up:](https://rclone.org/s3/#wasabi)
-  * WebDAV [:page_facing_up:](https://rclone.org/webdav/)
-  * Yandex Disk [:page_facing_up:](https://rclone.org/yandex/)
-  * 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/)
-
-## Features
-
-  * MD5/SHA-1 hashes checked at all times for file integrity
+  * MD5/SHA1 hashes checked at all times for file integrity
  * Timestamps preserved on files
  * Partial syncs supported on a whole file basis
-  * [Copy](https://rclone.org/commands/rclone_copy/) mode to just copy new/changed files
-  * [Sync](https://rclone.org/commands/rclone_sync/) (one way) mode to make a directory identical
-  * [Check](https://rclone.org/commands/rclone_check/) mode to check for file hash equality
-  * Can sync to and from network, e.g. two different cloud accounts
-  * Optional encryption ([Crypt](https://rclone.org/crypt/))
-  * Optional cache ([Cache](https://rclone.org/cache/))
-  * Optional FUSE mount ([rclone mount](https://rclone.org/commands/rclone_mount/))
+  * Copy mode to just copy new/changed files
+  * Sync (one way) mode to make a directory identical
+  * Check mode to check for file hash equality
+  * Can sync to and from network, eg two different cloud accounts
+  * Optional encryption (Crypt)
+  * Optional FUSE mount

-## Installation & documentation
+See the home page for installation, usage, documentation, changelog
+and configuration walkthroughs.

-Please see the [rclone website](https://rclone.org/) for:
-
-  * [Installation](https://rclone.org/install/)
-  * [Documentation & configuration](https://rclone.org/docs/)
-  * [Changelog](https://rclone.org/changelog/)
-  * [FAQ](https://rclone.org/faq/)
-  * [Storage providers](https://rclone.org/overview/)
-  * [Forum](https://forum.rclone.org/)
-  * ...and more
-
-## Downloads
-
-  * https://rclone.org/downloads/
+  * https://rclone.org/

 License
 -------

 This is free software under the terms of MIT the license (check the
-[COPYING file](/COPYING) included in this package).
+COPYING file included in this package).
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -13,9 +13,14 @@ Making a release
  * git status - to check for new man pages - git add them
  * git commit -a -v -m "Version v1.XX"
  * make retag
+  * make release_dep
+  * # Set the GOPATH for a current stable go compiler
+  * make cross
+  * git checkout docs/content/commands # to undo date changes in commands
  * git push --tags origin master
-  * # Wait for the appveyor and travis builds to complete then...
-  * make fetch_binaries
+  * git push --tags origin master:stable # update the stable branch for packager.io
+  * # Wait for the appveyor and travis builds to complete then fetch the windows binaries from appveyor
+  * make fetch_windows
  * make tarball
  * make sign_upload
  * make check_sign
@@ -26,45 +31,11 @@ Making a release
  * # announce with forum post, twitter post, G+ post

 Early in the next release cycle update the vendored dependencies
-  * Review any pinned packages in go.mod and remove if possible
+  * Review any pinned packages in Gopkg.toml and remove if possible
  * make update
  * git status
  * git add new files
+  * carry forward any patches to vendor stuff
  * git commit -a -v

-If `make update` fails with errors like this:
-
-```
-# github.com/cpuguy83/go-md2man/md2man
-../../../../pkg/mod/github.com/cpuguy83/go-md2man@v1.0.8/md2man/md2man.go:11:16: undefined: blackfriday.EXTENSION_NO_INTRA_EMPHASIS
-../../../../pkg/mod/github.com/cpuguy83/go-md2man@v1.0.8/md2man/md2man.go:12:16: undefined: blackfriday.EXTENSION_TABLES
-```
-
-Can be fixed with
-
-    * GO111MODULE=on go get -u github.com/russross/blackfriday@v1.5.2
-    * GO111MODULE=on go mod tidy
-    * GO111MODULE=on go mod vendor
- 
-
-Making a point release.  If rclone needs a point release due to some
-horrendous bug, then
-  * git branch v1.XX v1.XX-fixes
-  * git cherry-pick any fixes
-  * Test (see above)
-  * make NEW_TAG=v1.XX.1 tag
-  * edit docs/content/changelog.md
-  * make TAG=v1.43.1 doc
-  * git commit -a -v -m "Version v1.XX.1"
-  * git tag -d -v1.XX.1
-  * git tag -s -m "Version v1.XX.1" v1.XX.1
-  * git push --tags -u origin v1.XX-fixes
-  * make BRANCH_PATH= TAG=v1.43.1 fetch_binaries
-  * make TAG=v1.43.1 tarball
-  * make TAG=v1.43.1 sign_upload
-  * make TAG=v1.43.1 check_sign
-  * make TAG=v1.43.1 upload
-  * make TAG=v1.43.1 upload_website
-  * make TAG=v1.43.1 upload_github
-  * NB this overwrites the current beta so after the release, rebuild the last travis build
-  * Announce!
+Make the version number be just in a file?
--- a/backend/alias/alias.go
+++ b/backend/alias/alias.go
@@ -2,12 +2,12 @@ package alias

 import (
 	"errors"
+	"path"
+	"path/filepath"
 	"strings"

 	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
-	"github.com/ncw/rclone/fs/fspath"
+	"github.com/ncw/rclone/fs/config"
 )

 // Register with Fs
@@ -17,38 +17,29 @@ func init() {
 		Description: "Alias for a existing remote",
 		NewFs:       NewFs,
 		Options: []fs.Option{{
-			Name:     "remote",
-			Help:     "Remote or path to alias.\nCan be \"myremote:path/to/dir\", \"myremote:bucket\", \"myremote:\" or \"/local/path\".",
-			Required: true,
+			Name: "remote",
+			Help: "Remote or path to alias.\nCan be \"myremote:path/to/dir\", \"myremote:bucket\", \"myremote:\" or \"/local/path\".",
 		}},
 	}
 	fs.Register(fsi)
 }

-// Options defines the configuration for this backend
-type Options struct {
-	Remote string `config:"remote"`
-}
-
-// NewFs constructs an Fs from the path.
+// NewFs contstructs an Fs from the path.
 //
 // The returned Fs is the actual Fs, referenced by remote in the config
-func NewFs(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
-	}
-	if opt.Remote == "" {
+func NewFs(name, root string) (fs.Fs, error) {
+	remote := config.FileGet(name, "remote")
+	if remote == "" {
 		return nil, errors.New("alias can't point to an empty remote - check the value of the remote setting")
 	}
-	if strings.HasPrefix(opt.Remote, name+":") {
+	if strings.HasPrefix(remote, name+":") {
 		return nil, errors.New("can't point alias remote at itself - check the value of the remote setting")
 	}
-	fsInfo, configName, fsPath, config, err := fs.ConfigFs(opt.Remote)
+	fsInfo, configName, fsPath, err := fs.ParseRemote(remote)
 	if err != nil {
 		return nil, err
 	}
-	return fsInfo.NewFs(configName, fspath.JoinRootPath(fsPath, root), config)
+
+	root = filepath.ToSlash(root)
+	return fsInfo.NewFs(configName, path.Join(fsPath, root))
 }
--- a/backend/alias/alias_internal_test.go
+++ b/backend/alias/alias_internal_test.go
@@ -80,7 +80,7 @@ func TestNewFS(t *testing.T) {
 			wantEntry := test.entries[i]

 			require.Equal(t, wantEntry.remote, gotEntry.Remote(), what)
-			require.Equal(t, wantEntry.size, gotEntry.Size(), what)
+			require.Equal(t, wantEntry.size, int64(gotEntry.Size()), what)
 			_, isDir := gotEntry.(fs.Directory)
 			require.Equal(t, wantEntry.isDir, isDir, what)
 		}
--- a/backend/all/all.go
+++ b/backend/all/all.go
@@ -15,8 +15,6 @@ import (
 	_ "github.com/ncw/rclone/backend/googlecloudstorage"
 	_ "github.com/ncw/rclone/backend/http"
 	_ "github.com/ncw/rclone/backend/hubic"
-	_ "github.com/ncw/rclone/backend/jottacloud"
-	_ "github.com/ncw/rclone/backend/koofr"
 	_ "github.com/ncw/rclone/backend/local"
 	_ "github.com/ncw/rclone/backend/mega"
 	_ "github.com/ncw/rclone/backend/onedrive"
@@ -26,7 +24,6 @@ import (
 	_ "github.com/ncw/rclone/backend/s3"
 	_ "github.com/ncw/rclone/backend/sftp"
 	_ "github.com/ncw/rclone/backend/swift"
-	_ "github.com/ncw/rclone/backend/union"
 	_ "github.com/ncw/rclone/backend/webdav"
 	_ "github.com/ncw/rclone/backend/yandex"
 )
--- a/backend/amazonclouddrive/amazonclouddrive.go
+++ b/backend/amazonclouddrive/amazonclouddrive.go
@@ -21,11 +21,10 @@ import (
 	"strings"
 	"time"

-	acd "github.com/ncw/go-acd"
+	"github.com/ncw/go-acd"
 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/config"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config/flags"
 	"github.com/ncw/rclone/fs/fserrors"
 	"github.com/ncw/rclone/fs/fshttp"
 	"github.com/ncw/rclone/fs/hash"
@@ -38,17 +37,19 @@ import (
 )

 const (
-	folderKind               = "FOLDER"
-	fileKind                 = "FILE"
-	statusAvailable          = "AVAILABLE"
-	timeFormat               = time.RFC3339 // 2014-03-07T22:31:12.173Z
-	minSleep                 = 20 * time.Millisecond
-	warnFileSize             = 50000 << 20            // Display warning for files larger than this size
-	defaultTempLinkThreshold = fs.SizeSuffix(9 << 30) // Download files bigger than this via the tempLink
+	folderKind      = "FOLDER"
+	fileKind        = "FILE"
+	statusAvailable = "AVAILABLE"
+	timeFormat      = time.RFC3339 // 2014-03-07T22:31:12.173Z
+	minSleep        = 20 * time.Millisecond
+	warnFileSize    = 50000 << 20 // Display warning for files larger than this size
 )

 // Globals
 var (
+	// Flags
+	tempLinkThreshold = fs.SizeSuffix(9 << 30) // Download files bigger than this via the tempLink
+	uploadWaitPerGB   = flags.DurationP("acd-upload-wait-per-gb", "", 180*time.Second, "Additional time per GB to wait after a failed complete upload to see if it appears.")
 	// Description of how to auth for this app
 	acdConfig = &oauth2.Config{
 		Scopes: []string{"clouddrive:read_all", "clouddrive:write"},
@@ -66,96 +67,40 @@ var (
 func init() {
 	fs.Register(&fs.RegInfo{
 		Name:        "amazon cloud drive",
-		Prefix:      "acd",
 		Description: "Amazon Drive",
 		NewFs:       NewFs,
-		Config: func(name string, m configmap.Mapper) {
-			err := oauthutil.Config("amazon cloud drive", name, m, acdConfig)
+		Config: func(name string) {
+			err := oauthutil.Config("amazon cloud drive", name, acdConfig)
 			if err != nil {
 				log.Fatalf("Failed to configure token: %v", err)
 			}
 		},
 		Options: []fs.Option{{
-			Name:     config.ConfigClientID,
-			Help:     "Amazon Application Client ID.",
-			Required: true,
+			Name: config.ConfigClientID,
+			Help: "Amazon Application Client Id - required.",
 		}, {
-			Name:     config.ConfigClientSecret,
-			Help:     "Amazon Application Client Secret.",
-			Required: true,
+			Name: config.ConfigClientSecret,
+			Help: "Amazon Application Client Secret - required.",
 		}, {
-			Name:     config.ConfigAuthURL,
-			Help:     "Auth server URL.\nLeave blank to use Amazon's.",
-			Advanced: true,
+			Name: config.ConfigAuthURL,
+			Help: "Auth server URL - leave blank to use Amazon's.",
 		}, {
-			Name:     config.ConfigTokenURL,
-			Help:     "Token server url.\nleave blank to use Amazon's.",
-			Advanced: true,
-		}, {
-			Name:     "checkpoint",
-			Help:     "Checkpoint for internal polling (debug).",
-			Hide:     fs.OptionHideBoth,
-			Advanced: true,
-		}, {
-			Name: "upload_wait_per_gb",
-			Help: `Additional time per GB to wait after a failed complete upload to see if it appears.
-
-Sometimes Amazon Drive gives an error when a file has been fully
-uploaded but the file appears anyway after a little while.  This
-happens sometimes for files over 1GB in size and nearly every time for
-files bigger than 10GB. This parameter controls the time rclone waits
-for the file to appear.
-
-The default value for this parameter is 3 minutes per GB, so by
-default it will wait 3 minutes for every GB uploaded to see if the
-file appears.
-
-You can disable this feature by setting it to 0. This may cause
-conflict errors as rclone retries the failed upload but the file will
-most likely appear correctly eventually.
-
-These values were determined empirically by observing lots of uploads
-of big files for a range of file sizes.
-
-Upload with the "-v" flag to see more info about what rclone is doing
-in this situation.`,
-			Default:  fs.Duration(180 * time.Second),
-			Advanced: true,
-		}, {
-			Name: "templink_threshold",
-			Help: `Files >= this size will be downloaded via their tempLink.
-
-Files this size or more will be downloaded via their "tempLink". This
-is to work around a problem with Amazon Drive which blocks downloads
-of files bigger than about 10GB.  The default for this is 9GB which
-shouldn't need to be changed.
-
-To download files above this threshold, rclone requests a "tempLink"
-which downloads the file through a temporary URL directly from the
-underlying S3 storage.`,
-			Default:  defaultTempLinkThreshold,
-			Advanced: true,
+			Name: config.ConfigTokenURL,
+			Help: "Token server url - leave blank to use Amazon's.",
 		}},
 	})
-}
-
-// Options defines the configuration for this backend
-type Options struct {
-	Checkpoint        string        `config:"checkpoint"`
-	UploadWaitPerGB   fs.Duration   `config:"upload_wait_per_gb"`
-	TempLinkThreshold fs.SizeSuffix `config:"templink_threshold"`
+	flags.VarP(&tempLinkThreshold, "acd-templink-threshold", "", "Files >= this size will be downloaded via their tempLink.")
 }

 // Fs represents a remote acd server
 type Fs struct {
 	name         string             // name of this remote
 	features     *fs.Features       // optional features
-	opt          Options            // options for this Fs
 	c            *acd.Client        // the connection to the acd server
 	noAuthClient *http.Client       // unauthenticated http client
 	root         string             // the path we are working on
 	dirCache     *dircache.DirCache // Map of directory path to directory id
-	pacer        *fs.Pacer          // pacer for API calls
+	pacer        *pacer.Pacer       // pacer for API calls
 	trueRootID   string             // ID of true root directory
 	tokenRenewer *oauthutil.Renew   // renew the token on expiry
 }
@@ -246,13 +191,7 @@ func filterRequest(req *http.Request) {
 }

 // NewFs constructs an Fs from the path, container:path
-func NewFs(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
-	}
+func NewFs(name, root string) (fs.Fs, error) {
 	root = parsePath(root)
 	baseClient := fshttp.NewClient(fs.Config)
 	if do, ok := baseClient.Transport.(interface {
@@ -262,18 +201,17 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	} else {
 		fs.Debugf(name+":", "Couldn't add request filter - large file downloads will fail")
 	}
-	oAuthClient, ts, err := oauthutil.NewClientWithBaseClient(name, m, acdConfig, baseClient)
+	oAuthClient, ts, err := oauthutil.NewClientWithBaseClient(name, acdConfig, baseClient)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure Amazon Drive")
+		log.Fatalf("Failed to configure Amazon Drive: %v", err)
 	}

 	c := acd.NewClient(oAuthClient)
 	f := &Fs{
 		name:         name,
 		root:         root,
-		opt:          *opt,
 		c:            c,
-		pacer:        fs.NewPacer(pacer.NewAmazonCloudDrive(pacer.MinSleep(minSleep))),
+		pacer:        pacer.New().SetMinSleep(minSleep).SetPacer(pacer.AmazonCloudDrivePacer),
 		noAuthClient: fshttp.NewClient(fs.Config),
 	}
 	f.features = (&fs.Features{
@@ -312,16 +250,16 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	if err != nil {
 		// Assume it is a file
 		newRoot, remote := dircache.SplitPath(root)
-		tempF := *f
-		tempF.dirCache = dircache.New(newRoot, f.trueRootID, &tempF)
-		tempF.root = newRoot
+		newF := *f
+		newF.dirCache = dircache.New(newRoot, f.trueRootID, &newF)
+		newF.root = newRoot
 		// Make new Fs which is the parent
-		err = tempF.dirCache.FindRoot(false)
+		err = newF.dirCache.FindRoot(false)
 		if err != nil {
 			// No root so return old f
 			return f, nil
 		}
-		_, err := tempF.newObjectWithInfo(remote, nil)
+		_, err := newF.newObjectWithInfo(remote, nil)
 		if err != nil {
 			if err == fs.ErrorObjectNotFound {
 				// File doesn't exist so return old f
@@ -329,13 +267,8 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 			}
 			return nil, err
 		}
-		// XXX: update the old f here instead of returning tempF, since
-		// `features` were already filled with functions having *f as a receiver.
-		// See https://github.com/ncw/rclone/issues/2182
-		f.dirCache = tempF.dirCache
-		f.root = tempF.root
 		// return an error with an fs which points to the parent
-		return f, fs.ErrorIsFile
+		return &newF, fs.ErrorIsFile
 	}
 	return f, nil
 }
@@ -594,13 +527,13 @@ func (f *Fs) checkUpload(resp *http.Response, in io.Reader, src fs.ObjectInfo, i
 	}

 	// Don't wait for uploads - assume they will appear later
-	if f.opt.UploadWaitPerGB <= 0 {
+	if *uploadWaitPerGB <= 0 {
 		fs.Debugf(src, "Upload error detected but waiting disabled: %v (%q)", inErr, httpStatus)
 		return false, inInfo, inErr
 	}

 	// Time we should wait for the upload
-	uploadWaitPerByte := float64(f.opt.UploadWaitPerGB) / 1024 / 1024 / 1024
+	uploadWaitPerByte := float64(*uploadWaitPerGB) / 1024 / 1024 / 1024
 	timeToWait := time.Duration(uploadWaitPerByte * float64(src.Size()))

 	const sleepTime = 5 * time.Second                        // sleep between tries
@@ -1082,7 +1015,7 @@ func (o *Object) Storable() bool {

 // Open an object for read
 func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
-	bigObject := o.Size() >= int64(o.fs.opt.TempLinkThreshold)
+	bigObject := o.Size() >= int64(tempLinkThreshold)
 	if bigObject {
 		fs.Debugf(o, "Downloading large object via tempLink")
 	}
@@ -1274,38 +1207,24 @@ func (o *Object) MimeType() string {
 // Automatically restarts itself in case of unexpected behaviour of the remote.
 //
 // Close the returned channel to stop being notified.
-func (f *Fs) ChangeNotify(notifyFunc func(string, fs.EntryType), pollIntervalChan <-chan time.Duration) {
-	checkpoint := f.opt.Checkpoint
+func (f *Fs) ChangeNotify(notifyFunc func(string, fs.EntryType), pollInterval time.Duration) chan bool {
+	checkpoint := config.FileGet(f.name, "checkpoint")

+	quit := make(chan bool)
 	go func() {
-		var ticker *time.Ticker
-		var tickerC <-chan time.Time
 		for {
+			checkpoint = f.changeNotifyRunner(notifyFunc, checkpoint)
+			if err := config.SetValueAndSave(f.name, "checkpoint", checkpoint); err != nil {
+				fs.Debugf(f, "Unable to save checkpoint: %v", err)
+			}
 			select {
-			case pollInterval, ok := <-pollIntervalChan:
-				if !ok {
-					if ticker != nil {
-						ticker.Stop()
-					}
-					return
-				}
-				if pollInterval == 0 {
-					if ticker != nil {
-						ticker.Stop()
-						ticker, tickerC = nil, nil
-					}
-				} else {
-					ticker = time.NewTicker(pollInterval)
-					tickerC = ticker.C
-				}
-			case <-tickerC:
-				checkpoint = f.changeNotifyRunner(notifyFunc, checkpoint)
-				if err := config.SetValueAndSave(f.name, "checkpoint", checkpoint); err != nil {
-					fs.Debugf(f, "Unable to save checkpoint: %v", err)
-				}
+			case <-quit:
+				return
+			case <-time.After(pollInterval):
 			}
 		}
 	}()
+	return quit
 }

 func (f *Fs) changeNotifyRunner(notifyFunc func(string, fs.EntryType), checkpoint string) string {
--- a/backend/azureblob/azureblob.go
+++ b/backend/azureblob/azureblob.go
--- a/backend/azureblob/azureblob_internal_test.go
+++ b/backend/azureblob/azureblob_internal_test.go
@@ -1,18 +0,0 @@
-// +build !plan9,!solaris,go1.8
-
-package azureblob
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func (f *Fs) InternalTest(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)
-}
--- a/backend/azureblob/azureblob_test.go
+++ b/backend/azureblob/azureblob_test.go
@@ -1,37 +1,17 @@
 // Test AzureBlob filesystem interface
-
-// +build !plan9,!solaris,go1.8
-
-package azureblob
+package azureblob_test

 import (
 	"testing"

-	"github.com/ncw/rclone/fs"
+	"github.com/ncw/rclone/backend/azureblob"
 	"github.com/ncw/rclone/fstest/fstests"
 )

 // TestIntegration runs integration tests against the remote
 func TestIntegration(t *testing.T) {
 	fstests.Run(t, &fstests.Opt{
-		RemoteName:  "TestAzureBlob:",
-		NilObject:   (*Object)(nil),
-		TiersToTest: []string{"Hot", "Cool"},
-		ChunkedUpload: fstests.ChunkedUploadConfig{
-			MaxChunkSize: maxChunkSize,
-		},
+		RemoteName: "TestAzureBlob:",
+		NilObject:  (*azureblob.Object)(nil),
 	})
 }
-
-func (f *Fs) SetUploadChunkSize(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadChunkSize(cs)
-}
-
-func (f *Fs) SetUploadCutoff(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadCutoff(cs)
-}
-
-var (
-	_ fstests.SetUploadChunkSizer = (*Fs)(nil)
-	_ fstests.SetUploadCutoffer   = (*Fs)(nil)
-)
--- a/backend/azureblob/azureblob_unsupported.go
+++ b/backend/azureblob/azureblob_unsupported.go
@@ -1,6 +0,0 @@
-// Build for azureblob for unsupported platforms to stop go complaining
-// about "no buildable Go source files "
-
-// +build plan9 solaris !go1.8
-
-package azureblob
--- a/backend/b2/api/types.go
+++ b/backend/b2/api/types.go
@@ -17,12 +17,12 @@ type Error struct {
 	Message string `json:"message"` // A human-readable message, in English, saying what went wrong.
 }

-// Error satisfies the error interface
+// Error statisfies the error interface
 func (e *Error) Error() string {
 	return fmt.Sprintf("%s (%d %s)", e.Message, e.Status, e.Code)
 }

-// Fatal satisfies the Fatal interface
+// Fatal statisfies the Fatal interface
 //
 // It indicates which errors should be treated as fatal
 func (e *Error) Fatal() bool {
@@ -31,6 +31,11 @@ func (e *Error) Fatal() bool {

 var _ fserrors.Fataler = (*Error)(nil)

+// Account describes a B2 account
+type Account struct {
+	ID string `json:"accountId"` // The identifier for the account.
+}
+
 // Bucket describes a B2 bucket
 type Bucket struct {
 	ID        string `json:"bucketId"`
@@ -69,7 +74,7 @@ const versionFormat = "-v2006-01-02-150405.000"
 func (t Timestamp) AddVersion(remote string) string {
 	ext := path.Ext(remote)
 	base := remote[:len(remote)-len(ext)]
-	s := time.Time(t).Format(versionFormat)
+	s := (time.Time)(t).Format(versionFormat)
 	// Replace the '.' with a '-'
 	s = strings.Replace(s, ".", "-", -1)
 	return base + s + ext
@@ -100,22 +105,22 @@ func RemoveVersion(remote string) (t Timestamp, newRemote string) {
 	return Timestamp(newT), base[:versionStart] + ext
 }

-// IsZero returns true if the timestamp is uninitialized
+// IsZero returns true if the timestamp is unitialised
 func (t Timestamp) IsZero() bool {
-	return time.Time(t).IsZero()
+	return (time.Time)(t).IsZero()
 }

 // Equal compares two timestamps
 //
 // If either are !IsZero then it returns false
 func (t Timestamp) Equal(s Timestamp) bool {
-	if time.Time(t).IsZero() {
+	if (time.Time)(t).IsZero() {
 		return false
 	}
-	if time.Time(s).IsZero() {
+	if (time.Time)(s).IsZero() {
 		return false
 	}
-	return time.Time(t).Equal(time.Time(s))
+	return (time.Time)(t).Equal((time.Time)(s))
 }

 // File is info about a file
@@ -132,27 +137,10 @@ type File struct {

 // AuthorizeAccountResponse is as returned from the b2_authorize_account call
 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
-	} `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.
-	DownloadURL         string `json:"downloadUrl"`         // The base URL to use for downloading files.
-	MinimumPartSize     int    `json:"minimumPartSize"`     // DEPRECATED: This field will always have the same value as recommendedPartSize. Use recommendedPartSize instead.
-	RecommendedPartSize int    `json:"recommendedPartSize"` // The recommended size for each part of a large file. We recommend using this part size for optimal upload performance.
-}
-
-// ListBucketsRequest is parameters for b2_list_buckets call
-type ListBucketsRequest struct {
-	AccountID   string   `json:"accountId"`             // The identifier for the account.
-	BucketID    string   `json:"bucketId,omitempty"`    // When specified, the result will be a list containing just this bucket.
-	BucketName  string   `json:"bucketName,omitempty"`  // When specified, the result will be a list containing just this bucket.
-	BucketTypes []string `json:"bucketTypes,omitempty"` // If present, B2 will use it as a filter for bucket types returned in the list buckets response.
+	AccountID          string `json:"accountId"`          // The identifier for the account.
+	AuthorizationToken string `json:"authorizationToken"` // An authorization token to use with all calls, other than b2_authorize_account, that need an Authorization header.
+	APIURL             string `json:"apiUrl"`             // The base URL to use for all API calls except for uploading and downloading files.
+	DownloadURL        string `json:"downloadUrl"`        // The base URL to use for downloading files.
 }

 // ListBucketsResponse is as returned from the b2_list_buckets call
--- a/backend/b2/b2.go
+++ b/backend/b2/b2.go
@@ -22,8 +22,8 @@ import (
 	"github.com/ncw/rclone/backend/b2/api"
 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/accounting"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config"
+	"github.com/ncw/rclone/fs/config/flags"
 	"github.com/ncw/rclone/fs/fserrors"
 	"github.com/ncw/rclone/fs/fshttp"
 	"github.com/ncw/rclone/fs/hash"
@@ -34,27 +34,30 @@ import (
 )

 const (
-	defaultEndpoint     = "https://api.backblazeb2.com"
-	headerPrefix        = "x-bz-info-" // lower case as that is what the server returns
-	timeKey             = "src_last_modified_millis"
-	timeHeader          = headerPrefix + timeKey
-	sha1Key             = "large_file_sha1"
-	sha1Header          = "X-Bz-Content-Sha1"
-	sha1InfoHeader      = headerPrefix + sha1Key
-	testModeHeader      = "X-Bz-Test-Mode"
-	retryAfterHeader    = "Retry-After"
-	minSleep            = 10 * time.Millisecond
-	maxSleep            = 5 * time.Minute
-	decayConstant       = 1 // bigger for slower decay, exponential
-	maxParts            = 10000
-	maxVersions         = 100 // maximum number of versions we search in --b2-versions mode
-	minChunkSize        = 5 * fs.MebiByte
-	defaultChunkSize    = 96 * fs.MebiByte
-	defaultUploadCutoff = 200 * fs.MebiByte
+	defaultEndpoint  = "https://api.backblazeb2.com"
+	headerPrefix     = "x-bz-info-" // lower case as that is what the server returns
+	timeKey          = "src_last_modified_millis"
+	timeHeader       = headerPrefix + timeKey
+	sha1Key          = "large_file_sha1"
+	sha1Header       = "X-Bz-Content-Sha1"
+	sha1InfoHeader   = headerPrefix + sha1Key
+	testModeHeader   = "X-Bz-Test-Mode"
+	retryAfterHeader = "Retry-After"
+	minSleep         = 10 * time.Millisecond
+	maxSleep         = 5 * time.Minute
+	decayConstant    = 1 // bigger for slower decay, exponential
+	maxParts         = 10000
+	maxVersions      = 100 // maximum number of versions we search in --b2-versions mode
 )

 // Globals
 var (
+	minChunkSize       = fs.SizeSuffix(5E6)
+	chunkSize          = fs.SizeSuffix(96 * 1024 * 1024)
+	uploadCutoff       = fs.SizeSuffix(200E6)
+	b2TestMode         = flags.StringP("b2-test-mode", "", "", "A flag string for X-Bz-Test-Mode header.")
+	b2Versions         = flags.BoolP("b2-versions", "", false, "Include old versions in directory listings.")
+	b2HardDelete       = flags.BoolP("b2-hard-delete", "", false, "Permanently delete files on remote removal, otherwise hide files.")
 	errNotWithVersions = errors.New("can't modify or delete files in --b2-versions mode")
 )

@@ -65,98 +68,29 @@ func init() {
 		Description: "Backblaze B2",
 		NewFs:       NewFs,
 		Options: []fs.Option{{
-			Name:     "account",
-			Help:     "Account ID or Application Key ID",
-			Required: true,
+			Name: "account",
+			Help: "Account ID",
 		}, {
-			Name:     "key",
-			Help:     "Application Key",
-			Required: true,
+			Name: "key",
+			Help: "Application Key",
 		}, {
-			Name:     "endpoint",
-			Help:     "Endpoint for the service.\nLeave blank normally.",
-			Advanced: true,
-		}, {
-			Name: "test_mode",
-			Help: `A flag string for X-Bz-Test-Mode header for debugging.
-
-This is for debugging purposes only. Setting it to one of the strings
-below will cause b2 to return specific errors:
-
-  * "fail_some_uploads"
-  * "expire_some_account_authorization_tokens"
-  * "force_cap_exceeded"
-
-These will be set in the "X-Bz-Test-Mode" header which is documented
-in the [b2 integrations checklist](https://www.backblaze.com/b2/docs/integration_checklist.html).`,
-			Default:  "",
-			Hide:     fs.OptionHideConfigurator,
-			Advanced: true,
-		}, {
-			Name:     "versions",
-			Help:     "Include old versions in directory listings.\nNote that when using this no file write operations are permitted,\nso you can't upload files or delete them.",
-			Default:  false,
-			Advanced: true,
-		}, {
-			Name:    "hard_delete",
-			Help:    "Permanently delete files on remote removal, otherwise hide files.",
-			Default: false,
-		}, {
-			Name: "upload_cutoff",
-			Help: `Cutoff for switching to chunked upload.
-
-Files above this size will be uploaded in chunks of "--b2-chunk-size".
-
-This value should be set no larger than 4.657GiB (== 5GB).`,
-			Default:  defaultUploadCutoff,
-			Advanced: true,
-		}, {
-			Name: "chunk_size",
-			Help: `Upload chunk size. Must fit in memory.
-
-When uploading large files, chunk the file into this size.  Note that
-these chunks are buffered in memory and there might a maximum of
-"--transfers" chunks in progress at once.  5,000,000 Bytes is the
-minimum size.`,
-			Default:  defaultChunkSize,
-			Advanced: true,
-		}, {
-			Name:     "disable_checksum",
-			Help:     `Disable checksums for large (> upload cutoff) files`,
-			Default:  false,
-			Advanced: true,
-		}, {
-			Name: "download_url",
-			Help: `Custom endpoint for downloads.
-
-This is usually set to a Cloudflare CDN URL as Backblaze offers
-free egress for data downloaded through the Cloudflare network.
-Leave blank if you want to use the endpoint provided by Backblaze.`,
-			Advanced: true,
-		}},
+			Name: "endpoint",
+			Help: "Endpoint for the service - leave blank normally.",
+		},
+		},
 	})
-}
-
-// Options defines the configuration for this backend
-type Options struct {
-	Account         string        `config:"account"`
-	Key             string        `config:"key"`
-	Endpoint        string        `config:"endpoint"`
-	TestMode        string        `config:"test_mode"`
-	Versions        bool          `config:"versions"`
-	HardDelete      bool          `config:"hard_delete"`
-	UploadCutoff    fs.SizeSuffix `config:"upload_cutoff"`
-	ChunkSize       fs.SizeSuffix `config:"chunk_size"`
-	DisableCheckSum bool          `config:"disable_checksum"`
-	DownloadURL     string        `config:"download_url"`
+	flags.VarP(&uploadCutoff, "b2-upload-cutoff", "", "Cutoff for switching to chunked upload")
+	flags.VarP(&chunkSize, "b2-chunk-size", "", "Upload chunk size. Must fit in memory.")
 }

 // Fs represents a remote b2 server
 type Fs struct {
 	name          string                       // name of this remote
 	root          string                       // the path we are working on if any
-	opt           Options                      // parsed config options
 	features      *fs.Features                 // optional features
+	account       string                       // account name
+	key           string                       // auth key
+	endpoint      string                       // name of the starting api endpoint
 	srv           *rest.Client                 // the connection to the b2 server
 	bucket        string                       // the bucket we are working on
 	bucketOKMu    sync.Mutex                   // mutex to protect bucket OK
@@ -167,7 +101,7 @@ type Fs struct {
 	uploadMu      sync.Mutex                   // lock for upload variable
 	uploads       []*api.GetUploadURLResponse  // result of get upload URL calls
 	authMu        sync.Mutex                   // lock for authorizing the account
-	pacer         *fs.Pacer                    // To pace and retry the API calls
+	pacer         *pacer.Pacer                 // To pace and retry the API calls
 	bufferTokens  chan []byte                  // control concurrency of multipart uploads
 }

@@ -211,7 +145,7 @@ func (f *Fs) Features() *fs.Features {
 }

 // Pattern to match a b2 path
-var matcher = regexp.MustCompile(`^/*([^/]*)(.*)$`)
+var matcher = regexp.MustCompile(`^([^/]*)(.*)$`)

 // parseParse parses a b2 'url'
 func parsePath(path string) (bucket, directory string, err error) {
@@ -251,7 +185,13 @@ func (f *Fs) shouldRetryNoReauth(resp *http.Response, err error) (bool, error) {
 				fs.Errorf(f, "Malformed %s header %q: %v", retryAfterHeader, retryAfterString, err)
 			}
 		}
-		return true, pacer.RetryAfterError(err, time.Duration(retryAfter)*time.Second)
+		retryAfterDuration := time.Duration(retryAfter) * time.Second
+		if f.pacer.GetSleep() < retryAfterDuration {
+			fs.Debugf(f, "Setting sleep to %v after error: %v", retryAfterDuration, err)
+			// We set 1/2 the value here because the pacer will double it immediately
+			f.pacer.SetSleep(retryAfterDuration / 2)
+		}
+		return true, err
 	}
 	return fserrors.ShouldRetry(err) || fserrors.ShouldRetryHTTP(resp, retryErrorCodes), err
 }
@@ -291,73 +231,37 @@ func errorHandler(resp *http.Response) error {
 	return errResponse
 }

-func checkUploadChunkSize(cs fs.SizeSuffix) error {
-	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
+// NewFs contstructs an Fs from the path, bucket:path
+func NewFs(name, root string) (fs.Fs, error) {
+	if uploadCutoff < chunkSize {
+		return nil, errors.Errorf("b2: upload cutoff (%v) must be greater than or equal to chunk size (%v)", uploadCutoff, chunkSize)
 	}
-	return nil
-}
-
-func (f *Fs) setUploadChunkSize(cs fs.SizeSuffix) (old fs.SizeSuffix, err error) {
-	err = checkUploadChunkSize(cs)
-	if err == nil {
-		old, f.opt.ChunkSize = f.opt.ChunkSize, cs
-		f.fillBufferTokens() // reset the buffer tokens
-	}
-	return
-}
-
-func checkUploadCutoff(opt *Options, cs fs.SizeSuffix) error {
-	if cs < opt.ChunkSize {
-		return errors.Errorf("%v is less than chunk size %v", cs, opt.ChunkSize)
-	}
-	return nil
-}
-
-func (f *Fs) setUploadCutoff(cs fs.SizeSuffix) (old fs.SizeSuffix, err error) {
-	err = checkUploadCutoff(&f.opt, cs)
-	if err == nil {
-		old, f.opt.UploadCutoff = f.opt.UploadCutoff, cs
-	}
-	return
-}
-
-// NewFs constructs an Fs from the path, bucket:path
-func NewFs(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
-	}
-	err = checkUploadCutoff(opt, opt.UploadCutoff)
-	if err != nil {
-		return nil, errors.Wrap(err, "b2: upload cutoff")
-	}
-	err = checkUploadChunkSize(opt.ChunkSize)
-	if err != nil {
-		return nil, errors.Wrap(err, "b2: chunk size")
+	if chunkSize < minChunkSize {
+		return nil, errors.Errorf("b2: chunk size can't be less than %v - was %v", minChunkSize, chunkSize)
 	}
 	bucket, directory, err := parsePath(root)
 	if err != nil {
 		return nil, err
 	}
-	if opt.Account == "" {
+	account := config.FileGet(name, "account")
+	if account == "" {
 		return nil, errors.New("account not found")
 	}
-	if opt.Key == "" {
+	key := config.FileGet(name, "key")
+	if key == "" {
 		return nil, errors.New("key not found")
 	}
-	if opt.Endpoint == "" {
-		opt.Endpoint = defaultEndpoint
-	}
+	endpoint := config.FileGet(name, "endpoint", defaultEndpoint)
 	f := &Fs{
-		name:   name,
-		opt:    *opt,
-		bucket: bucket,
-		root:   directory,
-		srv:    rest.NewClient(fshttp.NewClient(fs.Config)).SetErrorHandler(errorHandler),
-		pacer:  fs.NewPacer(pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
+		name:         name,
+		bucket:       bucket,
+		root:         directory,
+		account:      account,
+		key:          key,
+		endpoint:     endpoint,
+		srv:          rest.NewClient(fshttp.NewClient(fs.Config)).SetErrorHandler(errorHandler),
+		pacer:        pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
+		bufferTokens: make(chan []byte, fs.Config.Transfers),
 	}
 	f.features = (&fs.Features{
 		ReadMimeType:  true,
@@ -365,28 +269,19 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 		BucketBased:   true,
 	}).Fill(f)
 	// Set the test flag if required
-	if opt.TestMode != "" {
-		testMode := strings.TrimSpace(opt.TestMode)
+	if *b2TestMode != "" {
+		testMode := strings.TrimSpace(*b2TestMode)
 		f.srv.SetHeader(testModeHeader, testMode)
 		fs.Debugf(f, "Setting test header \"%s: %s\"", testModeHeader, testMode)
 	}
-	f.fillBufferTokens()
+	// Fill up the buffer tokens
+	for i := 0; i < fs.Config.Transfers; i++ {
+		f.bufferTokens <- nil
+	}
 	err = f.authorizeAccount()
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to authorize account")
 	}
-	// If this is a key limited to a single bucket, it must exist already
-	if f.bucket != "" && f.info.Allowed.BucketID != "" {
-		allowedBucket := f.info.Allowed.BucketName
-		if allowedBucket == "" {
-			return nil, errors.New("bucket that application key is restricted to no longer exists")
-		}
-		if allowedBucket != f.bucket {
-			return nil, errors.Errorf("you must use bucket %q with this application key", allowedBucket)
-		}
-		f.markBucketOK()
-		f.setBucketID(f.info.Allowed.BucketID)
-	}
 	if f.root != "" {
 		f.root += "/"
 		// Check to see if the (bucket,directory) is actually an existing file
@@ -421,9 +316,9 @@ func (f *Fs) authorizeAccount() error {
 	opts := rest.Opts{
 		Method:       "GET",
 		Path:         "/b2api/v1/b2_authorize_account",
-		RootURL:      f.opt.Endpoint,
-		UserName:     f.opt.Account,
-		Password:     f.opt.Key,
+		RootURL:      f.endpoint,
+		UserName:     f.account,
+		Password:     f.key,
 		ExtraHeaders: map[string]string{"Authorization": ""}, // unset the Authorization for this request
 	}
 	err := f.pacer.Call(func() (bool, error) {
@@ -485,19 +380,11 @@ func (f *Fs) clearUploadURL() {
 	f.uploadMu.Unlock()
 }

-// Fill up (or reset) the buffer tokens
-func (f *Fs) fillBufferTokens() {
-	f.bufferTokens = make(chan []byte, fs.Config.Transfers)
-	for i := 0; i < fs.Config.Transfers; i++ {
-		f.bufferTokens <- nil
-	}
-}
-
 // getUploadBlock gets a block from the pool of size chunkSize
 func (f *Fs) getUploadBlock() []byte {
 	buf := <-f.bufferTokens
 	if buf == nil {
-		buf = make([]byte, f.opt.ChunkSize)
+		buf = make([]byte, chunkSize)
 	}
 	// fs.Debugf(f, "Getting upload block %p", buf)
 	return buf
@@ -506,7 +393,7 @@ func (f *Fs) getUploadBlock() []byte {
 // putUploadBlock returns a block to the pool of size chunkSize
 func (f *Fs) putUploadBlock(buf []byte) {
 	buf = buf[:cap(buf)]
-	if len(buf) != int(f.opt.ChunkSize) {
+	if len(buf) != int(chunkSize) {
 		panic("bad blocksize returned to pool")
 	}
 	// fs.Debugf(f, "Returning upload block %p", buf)
@@ -676,7 +563,7 @@ func (f *Fs) markBucketOK() {
 // listDir lists a single directory
 func (f *Fs) listDir(dir string) (entries fs.DirEntries, err error) {
 	last := ""
-	err = f.list(dir, false, "", 0, f.opt.Versions, func(remote string, object *api.File, isDirectory bool) error {
+	err = f.list(dir, false, "", 0, *b2Versions, func(remote string, object *api.File, isDirectory bool) error {
 		entry, err := f.itemToDirEntry(remote, object, isDirectory, &last)
 		if err != nil {
 			return err
@@ -748,7 +635,7 @@ func (f *Fs) ListR(dir string, callback fs.ListRCallback) (err error) {
 	}
 	list := walk.NewListRHelper(callback)
 	last := ""
-	err = f.list(dir, true, "", 0, f.opt.Versions, func(remote string, object *api.File, isDirectory bool) error {
+	err = f.list(dir, true, "", 0, *b2Versions, func(remote string, object *api.File, isDirectory bool) error {
 		entry, err := f.itemToDirEntry(remote, object, isDirectory, &last)
 		if err != nil {
 			return err
@@ -768,11 +655,7 @@ type listBucketFn func(*api.Bucket) error

 // listBucketsToFn lists the buckets to the function supplied
 func (f *Fs) listBucketsToFn(fn listBucketFn) error {
-	var account = api.ListBucketsRequest{
-		AccountID: f.info.AccountID,
-		BucketID:  f.info.Allowed.BucketID,
-	}
-
+	var account = api.Account{ID: f.info.AccountID}
 	var response api.ListBucketsResponse
 	opts := rest.Opts{
 		Method: "POST",
@@ -952,13 +835,6 @@ func (f *Fs) hide(Name string) error {
 		return f.shouldRetry(resp, err)
 	})
 	if err != nil {
-		if apiErr, ok := err.(*api.Error); ok {
-			if apiErr.Code == "already_hidden" {
-				// sometimes eventual consistency causes this, so
-				// ignore this error since it is harmless
-				return nil
-			}
-		}
 		return errors.Wrapf(err, "failed to hide %q", Name)
 	}
 	return nil
@@ -1003,12 +879,6 @@ func (f *Fs) purge(oldOnly bool) error {
 			errReturn = err
 		}
 	}
-	var isUnfinishedUploadStale = func(timestamp api.Timestamp) bool {
-		if time.Since(time.Time(timestamp)).Hours() > 24 {
-			return true
-		}
-		return false
-	}

 	// Delete Config.Transfers in parallel
 	toBeDeleted := make(chan *api.File, fs.Config.Transfers)
@@ -1032,9 +902,6 @@ func (f *Fs) purge(oldOnly bool) error {
 				if object.Action == "hide" {
 					fs.Debugf(remote, "Deleting current version (id %q) as it is a hide marker", object.ID)
 					toBeDeleted <- object
-				} else if 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
 				} else {
 					fs.Debugf(remote, "Not deleting current version (id %q) %q", object.ID, object.Action)
 				}
@@ -1168,12 +1035,12 @@ func (o *Object) readMetaData() (err error) {
 	maxSearched := 1
 	var timestamp api.Timestamp
 	baseRemote := o.remote
-	if o.fs.opt.Versions {
+	if *b2Versions {
 		timestamp, baseRemote = api.RemoveVersion(baseRemote)
 		maxSearched = maxVersions
 	}
 	var info *api.File
-	err = o.fs.list("", true, baseRemote, maxSearched, o.fs.opt.Versions, func(remote string, object *api.File, isDirectory bool) error {
+	err = o.fs.list("", true, baseRemote, maxSearched, *b2Versions, func(remote string, object *api.File, isDirectory bool) error {
 		if isDirectory {
 			return nil
 		}
@@ -1306,17 +1173,9 @@ var _ io.ReadCloser = &openFile{}
 func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 	opts := rest.Opts{
 		Method:  "GET",
+		RootURL: o.fs.info.DownloadURL,
 		Options: options,
 	}
-
-	// Use downloadUrl from backblaze if downloadUrl is not set
-	// otherwise use the custom downloadUrl
-	if o.fs.opt.DownloadURL == "" {
-		opts.RootURL = o.fs.info.DownloadURL
-	} else {
-		opts.RootURL = o.fs.opt.DownloadURL
-	}
-
 	// Download by id if set otherwise by name
 	if o.id != "" {
 		opts.Path += "/b2api/v1/b2_download_file_by_id?fileId=" + urlEncode(o.id)
@@ -1395,7 +1254,7 @@ func urlEncode(in string) string {
 //
 // The new object may have been created if an error is returned
 func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error) {
-	if o.fs.opt.Versions {
+	if *b2Versions {
 		return errNotWithVersions
 	}
 	err = o.fs.Mkdir("")
@@ -1430,7 +1289,7 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 		} else {
 			return err
 		}
-	} else if size > int64(o.fs.opt.UploadCutoff) {
+	} else if size > int64(uploadCutoff) {
 		up, err := o.fs.newLargeUpload(o, in, src)
 		if err != nil {
 			return err
@@ -1477,7 +1336,7 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 	// Content-Type b2/x-auto to automatically set the stored Content-Type
 	// post upload. In the case where a file extension is absent or the
 	// lookup fails, the Content-Type is set to application/octet-stream. The
-	// Content-Type mappings can be pursued here.
+	// Content-Type mappings can be purused here.
 	//
 	// X-Bz-Content-Sha1
 	// required
@@ -1524,6 +1383,11 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 		},
 		ContentLength: &size,
 	}
+	// for go1.8 (see release notes) we must nil the Body if we want a
+	// "Content-Length: 0" header which b2 requires for all files.
+	if size == 0 {
+		opts.Body = nil
+	}
 	var response api.FileInfo
 	// Don't retry, return a retry error instead
 	err = o.fs.pacer.CallNoRetry(func() (bool, error) {
@@ -1544,10 +1408,10 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio

 // Remove an object
 func (o *Object) Remove() error {
-	if o.fs.opt.Versions {
+	if *b2Versions {
 		return errNotWithVersions
 	}
-	if o.fs.opt.HardDelete {
+	if *b2HardDelete {
 		return o.fs.deleteByID(o.id, o.fs.root+o.remote)
 	}
 	return o.fs.hide(o.fs.root + o.remote)
--- a/backend/b2/b2_test.go
+++ b/backend/b2/b2_test.go
@@ -1,10 +1,10 @@
 // Test B2 filesystem interface
-package b2
+package b2_test

 import (
 	"testing"

-	"github.com/ncw/rclone/fs"
+	"github.com/ncw/rclone/backend/b2"
 	"github.com/ncw/rclone/fstest/fstests"
 )

@@ -12,23 +12,6 @@ import (
 func TestIntegration(t *testing.T) {
 	fstests.Run(t, &fstests.Opt{
 		RemoteName: "TestB2:",
-		NilObject:  (*Object)(nil),
-		ChunkedUpload: fstests.ChunkedUploadConfig{
-			MinChunkSize:       minChunkSize,
-			NeedMultipleChunks: true,
-		},
+		NilObject:  (*b2.Object)(nil),
 	})
 }
-
-func (f *Fs) SetUploadChunkSize(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadChunkSize(cs)
-}
-
-func (f *Fs) SetUploadCutoff(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadCutoff(cs)
-}
-
-var (
-	_ fstests.SetUploadChunkSizer = (*Fs)(nil)
-	_ fstests.SetUploadCutoffer   = (*Fs)(nil)
-)
--- a/backend/b2/upload.go
+++ b/backend/b2/upload.go
@@ -86,10 +86,10 @@ func (f *Fs) newLargeUpload(o *Object, in io.Reader, src fs.ObjectInfo) (up *lar
 	parts := int64(0)
 	sha1SliceSize := int64(maxParts)
 	if size == -1 {
-		fs.Debugf(o, "Streaming upload with --b2-chunk-size %s allows uploads of up to %s and will fail only when that limit is reached.", f.opt.ChunkSize, maxParts*f.opt.ChunkSize)
+		fs.Debugf(o, "Streaming upload with --b2-chunk-size %s allows uploads of up to %s and will fail only when that limit is reached.", fs.SizeSuffix(chunkSize), fs.SizeSuffix(maxParts*chunkSize))
 	} else {
-		parts = size / int64(o.fs.opt.ChunkSize)
-		if size%int64(o.fs.opt.ChunkSize) != 0 {
+		parts = size / int64(chunkSize)
+		if size%int64(chunkSize) != 0 {
 			parts++
 		}
 		if parts > maxParts {
@@ -116,10 +116,8 @@ func (f *Fs) newLargeUpload(o *Object, in io.Reader, src fs.ObjectInfo) (up *lar
 		},
 	}
 	// Set the SHA1 if known
-	if !o.fs.opt.DisableCheckSum {
-		if calculatedSha1, err := src.Hash(hash.SHA1); err == nil && calculatedSha1 != "" {
-			request.Info[sha1Key] = calculatedSha1
-		}
+	if calculatedSha1, err := src.Hash(hash.SHA1); err == nil && calculatedSha1 != "" {
+		request.Info[sha1Key] = calculatedSha1
 	}
 	var response api.StartLargeFileResponse
 	err = f.pacer.Call(func() (bool, error) {
@@ -411,8 +409,8 @@ outer:
 		}

 		reqSize := remaining
-		if reqSize >= int64(up.f.opt.ChunkSize) {
-			reqSize = int64(up.f.opt.ChunkSize)
+		if reqSize >= int64(chunkSize) {
+			reqSize = int64(chunkSize)
 		}

 		// Get a block of memory
--- a/backend/box/api/types.go
+++ b/backend/box/api/types.go
@@ -45,7 +45,7 @@ type Error struct {
 	RequestID   string `json:"request_id"`
 }

-// Error returns a string for the error and satisfies the error interface
+// Error returns a string for the error and statistifes the error interface
 func (e *Error) Error() string {
 	out := fmt.Sprintf("Error %q (%d)", e.Code, e.Status)
 	if e.Message != "" {
@@ -57,11 +57,11 @@ func (e *Error) Error() string {
 	return out
 }

-// Check Error satisfies the error interface
+// Check Error statisfies the error interface
 var _ error = (*Error)(nil)

 // ItemFields are the fields needed for FileInfo
-var ItemFields = "type,id,sequence_id,etag,sha1,name,size,created_at,modified_at,content_created_at,content_modified_at,item_status,shared_link"
+var ItemFields = "type,id,sequence_id,etag,sha1,name,size,created_at,modified_at,content_created_at,content_modified_at,item_status"

 // Types of things in Item
 const (
@@ -86,10 +86,6 @@ type Item struct {
 	ContentCreatedAt  Time    `json:"content_created_at"`
 	ContentModifiedAt Time    `json:"content_modified_at"`
 	ItemStatus        string  `json:"item_status"` // active, trashed if the file has been moved to the trash, and deleted if the file has been permanently deleted
-	SharedLink        struct {
-		URL    string `json:"url,omitempty"`
-		Access string `json:"access,omitempty"`
-	} `json:"shared_link"`
 }

 // ModTime returns the modification time of the item
@@ -149,14 +145,6 @@ type CopyFile struct {
 	Parent Parent `json:"parent"`
 }

-// CreateSharedLink is the request for Public Link
-type CreateSharedLink struct {
-	SharedLink struct {
-		URL    string `json:"url,omitempty"`
-		Access string `json:"access,omitempty"`
-	} `json:"shared_link"`
-}
-
 // UploadSessionRequest is uses in Create Upload Session
 type UploadSessionRequest struct {
 	FolderID string `json:"folder_id,omitempty"` // don't pass for update
@@ -184,8 +172,8 @@ type UploadSessionResponse struct {
 // Part defines the return from upload part call which are passed to commit upload also
 type Part struct {
 	PartID string `json:"part_id"`
-	Offset int64  `json:"offset"`
-	Size   int64  `json:"size"`
+	Offset int    `json:"offset"`
+	Size   int    `json:"size"`
 	Sha1   string `json:"sha1"`
 }

--- a/backend/box/box.go
+++ b/backend/box/box.go
@@ -23,8 +23,7 @@ import (
 	"github.com/ncw/rclone/backend/box/api"
 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/config"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config/flags"
 	"github.com/ncw/rclone/fs/config/obscure"
 	"github.com/ncw/rclone/fs/fserrors"
 	"github.com/ncw/rclone/fs/hash"
@@ -47,7 +46,6 @@ const (
 	uploadURL                   = "https://upload.box.com/api/2.0"
 	listChunks                  = 1000     // chunk size to read directory listings
 	minUploadCutoff             = 50000000 // upload cutoff can be no lower than this
-	defaultUploadCutoff         = 50 * 1024 * 1024
 )

 // Globals
@@ -63,6 +61,7 @@ var (
 		ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
 		RedirectURL:  oauthutil.RedirectURL,
 	}
+	uploadCutoff = fs.SizeSuffix(50 * 1024 * 1024)
 )

 // Register with Fs
@@ -71,47 +70,31 @@ func init() {
 		Name:        "box",
 		Description: "Box",
 		NewFs:       NewFs,
-		Config: func(name string, m configmap.Mapper) {
-			err := oauthutil.Config("box", name, m, oauthConfig)
+		Config: func(name string) {
+			err := oauthutil.Config("box", name, oauthConfig)
 			if err != nil {
 				log.Fatalf("Failed to configure token: %v", err)
 			}
 		},
 		Options: []fs.Option{{
 			Name: config.ConfigClientID,
-			Help: "Box App Client Id.\nLeave blank normally.",
+			Help: "Box App Client Id - leave blank normally.",
 		}, {
 			Name: config.ConfigClientSecret,
-			Help: "Box App Client Secret\nLeave blank normally.",
-		}, {
-			Name:     "upload_cutoff",
-			Help:     "Cutoff for switching to multipart upload (>= 50MB).",
-			Default:  fs.SizeSuffix(defaultUploadCutoff),
-			Advanced: true,
-		}, {
-			Name:     "commit_retries",
-			Help:     "Max number of times to try committing a multipart file.",
-			Default:  100,
-			Advanced: true,
+			Help: "Box App Client Secret - leave blank normally.",
 		}},
 	})
-}
-
-// Options defines the configuration for this backend
-type Options struct {
-	UploadCutoff  fs.SizeSuffix `config:"upload_cutoff"`
-	CommitRetries int           `config:"commit_retries"`
+	flags.VarP(&uploadCutoff, "box-upload-cutoff", "", "Cutoff for switching to multipart upload")
 }

 // Fs represents a remote box
 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
 	srv          *rest.Client          // the connection to the one drive server
 	dirCache     *dircache.DirCache    // Map of directory path to directory id
-	pacer        *fs.Pacer             // pacer for API calls
+	pacer        *pacer.Pacer          // pacer for API calls
 	tokenRenewer *oauthutil.Renew      // renew the token on expiry
 	uploadToken  *pacer.TokenDispenser // control concurrency
 }
@@ -126,7 +109,6 @@ type Object struct {
 	size        int64     // size of the object
 	modTime     time.Time // modification time of the object
 	id          string    // ID of the object
-	publicLink  string    // Public Link for the object
 	sha1        string    // SHA-1 of the object content
 }

@@ -171,13 +153,13 @@ var retryErrorCodes = []int{
 // shouldRetry returns a boolean as to whether this resp and err
 // deserve to be retried.  It returns the err as a convenience
 func shouldRetry(resp *http.Response, err error) (bool, error) {
-	authRetry := false
+	authRety := false

 	if resp != nil && resp.StatusCode == 401 && len(resp.Header["Www-Authenticate"]) == 1 && strings.Index(resp.Header["Www-Authenticate"][0], "expired_token") >= 0 {
-		authRetry = true
+		authRety = true
 		fs.Debugf(nil, "Should retry: %v", err)
 	}
-	return authRetry || fserrors.ShouldRetry(err) || fserrors.ShouldRetryHTTP(resp, retryErrorCodes), err
+	return authRety || fserrors.ShouldRetry(err) || fserrors.ShouldRetryHTTP(resp, retryErrorCodes), err
 }

 // substitute reserved characters for box
@@ -237,30 +219,22 @@ func errorHandler(resp *http.Response) error {
 }

 // NewFs constructs an Fs from the path, container:path
-func NewFs(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
-	}
-
-	if opt.UploadCutoff < minUploadCutoff {
-		return nil, errors.Errorf("box: upload cutoff (%v) must be greater than equal to %v", opt.UploadCutoff, fs.SizeSuffix(minUploadCutoff))
+func NewFs(name, root string) (fs.Fs, error) {
+	if uploadCutoff < minUploadCutoff {
+		return nil, errors.Errorf("box: upload cutoff (%v) must be greater than equal to %v", uploadCutoff, fs.SizeSuffix(minUploadCutoff))
 	}

 	root = parsePath(root)
-	oAuthClient, ts, err := oauthutil.NewClient(name, m, oauthConfig)
+	oAuthClient, ts, err := oauthutil.NewClient(name, oauthConfig)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure Box")
+		log.Fatalf("Failed to configure Box: %v", err)
 	}

 	f := &Fs{
 		name:        name,
 		root:        root,
-		opt:         *opt,
 		srv:         rest.NewClient(oAuthClient).SetRoot(rootURL),
-		pacer:       fs.NewPacer(pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
+		pacer:       pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
 		uploadToken: pacer.NewTokenDispenser(fs.Config.Transfers),
 	}
 	f.features = (&fs.Features{
@@ -283,16 +257,16 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	if err != nil {
 		// Assume it is a file
 		newRoot, remote := dircache.SplitPath(root)
-		tempF := *f
-		tempF.dirCache = dircache.New(newRoot, rootID, &tempF)
-		tempF.root = newRoot
+		newF := *f
+		newF.dirCache = dircache.New(newRoot, rootID, &newF)
+		newF.root = newRoot
 		// Make new Fs which is the parent
-		err = tempF.dirCache.FindRoot(false)
+		err = newF.dirCache.FindRoot(false)
 		if err != nil {
 			// No root so return old f
 			return f, nil
 		}
-		_, err := tempF.newObjectWithInfo(remote, nil)
+		_, err := newF.newObjectWithInfo(remote, nil)
 		if err != nil {
 			if err == fs.ErrorObjectNotFound {
 				// File doesn't exist so return old f
@@ -300,14 +274,8 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 			}
 			return nil, err
 		}
-		f.features.Fill(&tempF)
-		// XXX: update the old f here instead of returning tempF, since
-		// `features` were already filled with functions having *f as a receiver.
-		// See https://github.com/ncw/rclone/issues/2182
-		f.dirCache = tempF.dirCache
-		f.root = tempF.root
 		// return an error with an fs which points to the parent
-		return f, fs.ErrorIsFile
+		return &newF, fs.ErrorIsFile
 	}
 	return f, nil
 }
@@ -530,10 +498,10 @@ func (f *Fs) createObject(remote string, modTime time.Time, size int64) (o *Obje
 //
 // The new object may have been created if an error is returned
 func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
-	existingObj, err := f.newObjectWithInfo(src.Remote(), nil)
+	exisitingObj, err := f.newObjectWithInfo(src.Remote(), nil)
 	switch err {
 	case nil:
-		return existingObj, existingObj.Update(in, src, options...)
+		return exisitingObj, exisitingObj.Update(in, src, options...)
 	case fs.ErrorObjectNotFound:
 		// Not found so create it
 		return f.PutUnchecked(in, src)
@@ -681,7 +649,7 @@ func (f *Fs) Copy(src fs.Object, remote string) (fs.Object, error) {
 		Parameters: fieldsValue(),
 	}
 	replacedLeaf := replaceReservedChars(leaf)
-	copyFile := api.CopyFile{
+	copy := api.CopyFile{
 		Name: replacedLeaf,
 		Parent: api.Parent{
 			ID: directoryID,
@@ -690,7 +658,7 @@ func (f *Fs) Copy(src fs.Object, remote string) (fs.Object, error) {
 	var resp *http.Response
 	var info *api.Item
 	err = f.pacer.Call(func() (bool, error) {
-		resp, err = f.srv.CallJSON(&opts, &copyFile, &info)
+		resp, err = f.srv.CallJSON(&opts, &copy, &info)
 		return shouldRetry(resp, err)
 	})
 	if err != nil {
@@ -851,46 +819,6 @@ func (f *Fs) DirMove(src fs.Fs, srcRemote, dstRemote string) error {
 	return nil
 }

-// PublicLink adds a "readable by anyone with link" permission on the given file or folder.
-func (f *Fs) PublicLink(remote string) (string, error) {
-	id, err := f.dirCache.FindDir(remote, false)
-	var opts rest.Opts
-	if err == nil {
-		fs.Debugf(f, "attempting to share directory '%s'", remote)
-
-		opts = rest.Opts{
-			Method:     "PUT",
-			Path:       "/folders/" + id,
-			Parameters: fieldsValue(),
-		}
-	} else {
-		fs.Debugf(f, "attempting to share single file '%s'", remote)
-		o, err := f.NewObject(remote)
-		if err != nil {
-			return "", err
-		}
-
-		if o.(*Object).publicLink != "" {
-			return o.(*Object).publicLink, nil
-		}
-
-		opts = rest.Opts{
-			Method:     "PUT",
-			Path:       "/files/" + o.(*Object).id,
-			Parameters: fieldsValue(),
-		}
-	}
-
-	shareLink := api.CreateSharedLink{}
-	var info api.Item
-	var resp *http.Response
-	err = f.pacer.Call(func() (bool, error) {
-		resp, err = f.srv.CallJSON(&opts, &shareLink, &info)
-		return shouldRetry(resp, err)
-	})
-	return info.SharedLink.URL, err
-}
-
 // DirCacheFlush resets the directory cache - used in testing as an
 // optional interface
 func (f *Fs) DirCacheFlush() {
@@ -955,7 +883,6 @@ func (o *Object) setMetaData(info *api.Item) (err error) {
 	o.sha1 = info.SHA1
 	o.modTime = info.ModTime()
 	o.id = info.ID
-	o.publicLink = info.SharedLink.URL
 	return nil
 }

@@ -1062,8 +989,8 @@ func (o *Object) upload(in io.Reader, leaf, directoryID string, modTime time.Tim
 	var resp *http.Response
 	var result api.FolderItems
 	opts := rest.Opts{
-		Method:                "POST",
-		Body:                  in,
+		Method: "POST",
+		Body:   in,
 		MultipartMetadataName: "attributes",
 		MultipartContentName:  "contents",
 		MultipartFileName:     upload.Name,
@@ -1108,7 +1035,7 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 	}

 	// Upload with simple or multipart
-	if size <= int64(o.fs.opt.UploadCutoff) {
+	if size <= int64(uploadCutoff) {
 		err = o.upload(in, leaf, directoryID, modTime)
 	} else {
 		err = o.uploadMultipart(in, leaf, directoryID, size, modTime)
@@ -1135,7 +1062,6 @@ var (
 	_ fs.Mover           = (*Fs)(nil)
 	_ fs.DirMover        = (*Fs)(nil)
 	_ fs.DirCacheFlusher = (*Fs)(nil)
-	_ fs.PublicLinker    = (*Fs)(nil)
 	_ fs.Object          = (*Object)(nil)
 	_ fs.IDer            = (*Object)(nil)
 )
--- a/backend/box/upload.go
+++ b/backend/box/upload.go
@@ -96,9 +96,7 @@ func (o *Object) commitUpload(SessionID string, parts []api.Part, modTime time.T
 	request.Attributes.ContentCreatedAt = api.Time(modTime)
 	var body []byte
 	var resp *http.Response
-	// For discussion of this value see:
-	// https://github.com/ncw/rclone/issues/2054
-	maxTries := o.fs.opt.CommitRetries
+	maxTries := fs.Config.LowLevelRetries
 	const defaultDelay = 10
 	var tries int
 outer:
@@ -211,8 +209,8 @@ outer:
 		}

 		reqSize := remaining
-		if reqSize >= chunkSize {
-			reqSize = chunkSize
+		if reqSize >= int64(chunkSize) {
+			reqSize = int64(chunkSize)
 		}

 		// Make a block of memory
--- a/backend/cache/cache.go
+++ b/backend/cache/cache.go
--- a/backend/cache/cache_internal_test.go
+++ b/backend/cache/cache_internal_test.go
@@ -4,9 +4,6 @@ package cache_test

 import (
 	"bytes"
-	"encoding/base64"
-	goflag "flag"
-	"fmt"
 	"io"
 	"io/ioutil"
 	"log"
@@ -15,26 +12,34 @@ import (
 	"path"
 	"path/filepath"
 	"runtime"
-	"runtime/debug"
 	"strconv"
 	"strings"
 	"testing"
 	"time"

+	"github.com/pkg/errors"
+
+	"encoding/base64"
+	goflag "flag"
+	"fmt"
+	"runtime/debug"
+
+	"encoding/json"
+	"net/http"
+
 	"github.com/ncw/rclone/backend/cache"
 	"github.com/ncw/rclone/backend/crypt"
 	_ "github.com/ncw/rclone/backend/drive"
 	"github.com/ncw/rclone/backend/local"
 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/config"
-	"github.com/ncw/rclone/fs/config/configmap"
 	"github.com/ncw/rclone/fs/object"
 	"github.com/ncw/rclone/fs/rc"
+	"github.com/ncw/rclone/fs/rc/rcflags"
 	"github.com/ncw/rclone/fstest"
 	"github.com/ncw/rclone/vfs"
 	"github.com/ncw/rclone/vfs/vfsflags"
-	"github.com/pkg/errors"
-	"github.com/stretchr/testify/assert"
+	flag "github.com/spf13/pflag"
 	"github.com/stretchr/testify/require"
 )

@@ -135,7 +140,7 @@ func TestInternalVfsCache(t *testing.T) {

 	vfsflags.Opt.CacheMode = vfs.CacheModeWrites
 	id := "tiuufo"
-	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, true, true, nil, map[string]string{"writes": "true", "info_age": "1h"})
+	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, true, true, nil, map[string]string{"cache-writes": "true", "cache-info-age": "1h"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	err := rootFs.Mkdir("test")
@@ -387,10 +392,10 @@ func TestInternalWrappedWrittenContentMatches(t *testing.T) {

 	// write the object
 	o := runInstance.writeObjectBytes(t, cfs.UnWrap(), "data.bin", testData)
-	require.Equal(t, o.Size(), testSize)
+	require.Equal(t, o.Size(), int64(testSize))
 	time.Sleep(time.Second * 3)

-	checkSample, err := runInstance.readDataFromRemote(t, rootFs, "data.bin", 0, testSize, false)
+	checkSample, err := runInstance.readDataFromRemote(t, rootFs, "data.bin", 0, int64(testSize), false)
 	require.NoError(t, err)
 	require.Equal(t, int64(len(checkSample)), o.Size())

@@ -690,11 +695,11 @@ func TestInternalChangeSeenAfterDirCacheFlush(t *testing.T) {
 }

 func TestInternalChangeSeenAfterRc(t *testing.T) {
-	cacheExpire := rc.Calls.Get("cache/expire")
-	assert.NotNil(t, cacheExpire)
+	rcflags.Opt.Enabled = true
+	rc.Start(&rcflags.Opt)

 	id := fmt.Sprintf("ticsarc%v", time.Now().Unix())
-	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, false, true, nil, nil)
+	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, false, true, nil, map[string]string{"rc": "true"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	if !runInstance.useMount {
@@ -724,9 +729,13 @@ func TestInternalChangeSeenAfterRc(t *testing.T) {
 	require.NoError(t, err)
 	require.NotEqual(t, o.ModTime().String(), co.ModTime().String())

-	// Call the rc function
-	m, err := cacheExpire.Fn(rc.Params{"remote": "data.bin"})
+	m := make(map[string]string)
+	res, err := http.Post(fmt.Sprintf("http://localhost:5572/cache/expire?remote=%s", "data.bin"), "application/json; charset=utf-8", strings.NewReader(""))
 	require.NoError(t, err)
+	defer func() {
+		_ = res.Body.Close()
+	}()
+	_ = json.NewDecoder(res.Body).Decode(&m)
 	require.Contains(t, m, "status")
 	require.Contains(t, m, "message")
 	require.Equal(t, "ok", m["status"])
@@ -736,21 +745,23 @@ func TestInternalChangeSeenAfterRc(t *testing.T) {
 	co, err = rootFs.NewObject("data.bin")
 	require.NoError(t, err)
 	require.Equal(t, wrappedTime.Unix(), co.ModTime().Unix())
-	_, err = runInstance.list(t, rootFs, "")
-	require.NoError(t, err)
+	li1, err := runInstance.list(t, rootFs, "")

 	// create some rand test data
 	testData2 := randStringBytes(int(chunkSize))
 	runInstance.writeObjectBytes(t, cfs.UnWrap(), runInstance.encryptRemoteIfNeeded(t, "test2"), testData2)

 	// list should have 1 item only
-	li1, err := runInstance.list(t, rootFs, "")
-	require.NoError(t, err)
+	li1, err = runInstance.list(t, rootFs, "")
 	require.Len(t, li1, 1)

-	// Call the rc function
-	m, err = cacheExpire.Fn(rc.Params{"remote": "/"})
+	m = make(map[string]string)
+	res2, err := http.Post("http://localhost:5572/cache/expire?remote=/", "application/json; charset=utf-8", strings.NewReader(""))
 	require.NoError(t, err)
+	defer func() {
+		_ = res2.Body.Close()
+	}()
+	_ = json.NewDecoder(res2.Body).Decode(&m)
 	require.Contains(t, m, "status")
 	require.Contains(t, m, "message")
 	require.Equal(t, "ok", m["status"])
@@ -758,13 +769,12 @@ func TestInternalChangeSeenAfterRc(t *testing.T) {

 	// list should have 2 items now
 	li2, err := runInstance.list(t, rootFs, "")
-	require.NoError(t, err)
 	require.Len(t, li2, 2)
 }

 func TestInternalCacheWrites(t *testing.T) {
 	id := "ticw"
-	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, false, true, nil, map[string]string{"writes": "true"})
+	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, false, true, nil, map[string]string{"cache-writes": "true"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	cfs, err := runInstance.getCacheFs(rootFs)
@@ -783,7 +793,7 @@ func TestInternalCacheWrites(t *testing.T) {

 func TestInternalMaxChunkSizeRespected(t *testing.T) {
 	id := fmt.Sprintf("timcsr%v", time.Now().Unix())
-	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, false, true, nil, map[string]string{"workers": "1"})
+	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, false, true, nil, map[string]string{"cache-workers": "1"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	cfs, err := runInstance.getCacheFs(rootFs)
@@ -858,7 +868,7 @@ func TestInternalBug2117(t *testing.T) {

 	id := fmt.Sprintf("tib2117%v", time.Now().Unix())
 	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, false, true, nil,
-		map[string]string{"info_age": "72h", "chunk_clean_interval": "15m"})
+		map[string]string{"cache-info-age": "72h", "cache-chunk-clean-interval": "15m"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	if runInstance.rootIsCrypt {
@@ -908,7 +918,10 @@ func TestInternalBug2117(t *testing.T) {
 // run holds the remotes for a test run
 type run struct {
 	okDiff            time.Duration
-	runDefaultCfgMap  configmap.Simple
+	allCfgMap         map[string]string
+	allFlagMap        map[string]string
+	runDefaultCfgMap  map[string]string
+	runDefaultFlagMap map[string]string
 	mntDir            string
 	tmpUploadDir      string
 	useMount          bool
@@ -932,16 +945,38 @@ func newRun() *run {
 		isMounted: false,
 	}

-	// Read in all the defaults for all the options
-	fsInfo, err := fs.Find("cache")
-	if err != nil {
-		panic(fmt.Sprintf("Couldn't find cache remote: %v", err))
+	r.allCfgMap = map[string]string{
+		"plex_url":         "",
+		"plex_username":    "",
+		"plex_password":    "",
+		"chunk_size":       cache.DefCacheChunkSize,
+		"info_age":         cache.DefCacheInfoAge,
+		"chunk_total_size": cache.DefCacheTotalChunkSize,
 	}
-	r.runDefaultCfgMap = configmap.Simple{}
-	for _, option := range fsInfo.Options {
-		r.runDefaultCfgMap.Set(option.Name, fmt.Sprint(option.Default))
+	r.allFlagMap = map[string]string{
+		"cache-db-path":              filepath.Join(config.CacheDir, "cache-backend"),
+		"cache-chunk-path":           filepath.Join(config.CacheDir, "cache-backend"),
+		"cache-db-purge":             "true",
+		"cache-chunk-size":           cache.DefCacheChunkSize,
+		"cache-total-chunk-size":     cache.DefCacheTotalChunkSize,
+		"cache-chunk-clean-interval": cache.DefCacheChunkCleanInterval,
+		"cache-info-age":             cache.DefCacheInfoAge,
+		"cache-read-retries":         strconv.Itoa(cache.DefCacheReadRetries),
+		"cache-workers":              strconv.Itoa(cache.DefCacheTotalWorkers),
+		"cache-chunk-no-memory":      "false",
+		"cache-rps":                  strconv.Itoa(cache.DefCacheRps),
+		"cache-writes":               "false",
+		"cache-tmp-upload-path":      "",
+		"cache-tmp-wait-time":        cache.DefCacheTmpWaitTime,
+	}
+	r.runDefaultCfgMap = make(map[string]string)
+	for key, value := range r.allCfgMap {
+		r.runDefaultCfgMap[key] = value
+	}
+	r.runDefaultFlagMap = make(map[string]string)
+	for key, value := range r.allFlagMap {
+		r.runDefaultFlagMap[key] = value
 	}
-
 	if mountDir == "" {
 		if runtime.GOOS != "windows" {
 			r.mntDir, err = ioutil.TempDir("", "rclonecache-mount")
@@ -1051,22 +1086,28 @@ func (r *run) newCacheFs(t *testing.T, remote, id string, needRemote, purge bool
 	boltDb, err := cache.GetPersistent(runInstance.dbPath, runInstance.chunkPath, &cache.Features{PurgeDb: true})
 	require.NoError(t, err)

-	fs.Config.LowLevelRetries = 1
-
-	m := configmap.Simple{}
 	for k, v := range r.runDefaultCfgMap {
-		m.Set(k, v)
+		if c, ok := cfg[k]; ok {
+			config.FileSet(cacheRemote, k, c)
+		} else {
+			config.FileSet(cacheRemote, k, v)
+		}
 	}
-	for k, v := range flags {
-		m.Set(k, v)
+	for k, v := range r.runDefaultFlagMap {
+		if c, ok := flags[k]; ok {
+			_ = flag.Set(k, c)
+		} else {
+			_ = flag.Set(k, v)
+		}
 	}
+	fs.Config.LowLevelRetries = 1

 	// Instantiate root
 	if purge {
 		boltDb.PurgeTempUploads()
 		_ = os.RemoveAll(path.Join(runInstance.tmpUploadDir, id))
 	}
-	f, err := cache.NewFs(remote, id, m)
+	f, err := fs.NewFs(remote + ":" + id)
 	require.NoError(t, err)
 	cfs, err := r.getCacheFs(f)
 	require.NoError(t, err)
@@ -1116,6 +1157,9 @@ func (r *run) cleanupFs(t *testing.T, f fs.Fs, b *cache.Persistent) {
 	}
 	r.tempFiles = nil
 	debug.FreeOSMemory()
+	for k, v := range r.runDefaultFlagMap {
+		_ = flag.Set(k, v)
+	}
 }

 func (r *run) randomReader(t *testing.T, size int64) io.ReadCloser {
@@ -1495,8 +1539,7 @@ func (r *run) updateData(t *testing.T, rootFs fs.Fs, src, data, append string) e
 	var err error

 	if r.useMount {
-		var f *os.File
-		f, err = os.OpenFile(path.Join(runInstance.mntDir, src), os.O_TRUNC|os.O_CREATE|os.O_WRONLY, 0644)
+		f, err := os.OpenFile(path.Join(runInstance.mntDir, src), os.O_TRUNC|os.O_CREATE|os.O_WRONLY, 0644)
 		if err != nil {
 			return err
 		}
@@ -1506,8 +1549,7 @@ func (r *run) updateData(t *testing.T, rootFs fs.Fs, src, data, append string) e
 		}()
 		_, err = f.WriteString(data + append)
 	} else {
-		var obj1 fs.Object
-		obj1, err = rootFs.NewObject(src)
+		obj1, err := rootFs.NewObject(src)
 		if err != nil {
 			return err
 		}
@@ -1639,13 +1681,15 @@ func (r *run) getCacheFs(f fs.Fs) (*cache.Fs, error) {
 	cfs, ok := f.(*cache.Fs)
 	if ok {
 		return cfs, nil
-	}
-	if f.Features().UnWrap != nil {
-		cfs, ok := f.Features().UnWrap().(*cache.Fs)
-		if ok {
-			return cfs, nil
+	} else {
+		if f.Features().UnWrap != nil {
+			cfs, ok := f.Features().UnWrap().(*cache.Fs)
+			if ok {
+				return cfs, nil
+			}
 		}
 	}
+
 	return nil, errors.New("didn't found a cache fs")
 }

--- a/backend/cache/cache_upload_test.go
+++ b/backend/cache/cache_upload_test.go
@@ -3,7 +3,6 @@
 package cache_test

 import (
-	"fmt"
 	"math/rand"
 	"os"
 	"path"
@@ -11,6 +10,8 @@ import (
 	"testing"
 	"time"

+	"fmt"
+
 	"github.com/ncw/rclone/backend/cache"
 	_ "github.com/ncw/rclone/backend/drive"
 	"github.com/ncw/rclone/fs"
@@ -21,7 +22,7 @@ func TestInternalUploadTempDirCreated(t *testing.T) {
 	id := fmt.Sprintf("tiutdc%v", time.Now().Unix())
 	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, false, true,
 		nil,
-		map[string]string{"tmp_upload_path": path.Join(runInstance.tmpUploadDir, id)})
+		map[string]string{"cache-tmp-upload-path": path.Join(runInstance.tmpUploadDir, id)})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	_, err := os.Stat(path.Join(runInstance.tmpUploadDir, id))
@@ -62,7 +63,7 @@ func TestInternalUploadQueueOneFileNoRest(t *testing.T) {
 	id := fmt.Sprintf("tiuqofnr%v", time.Now().Unix())
 	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, true, true,
 		nil,
-		map[string]string{"tmp_upload_path": path.Join(runInstance.tmpUploadDir, id), "tmp_wait_time": "0s"})
+		map[string]string{"cache-tmp-upload-path": path.Join(runInstance.tmpUploadDir, id), "cache-tmp-wait-time": "0s"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	testInternalUploadQueueOneFile(t, id, rootFs, boltDb)
@@ -72,7 +73,7 @@ func TestInternalUploadQueueOneFileWithRest(t *testing.T) {
 	id := fmt.Sprintf("tiuqofwr%v", time.Now().Unix())
 	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, true, true,
 		nil,
-		map[string]string{"tmp_upload_path": path.Join(runInstance.tmpUploadDir, id), "tmp_wait_time": "1m"})
+		map[string]string{"cache-tmp-upload-path": path.Join(runInstance.tmpUploadDir, id), "cache-tmp-wait-time": "1m"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	testInternalUploadQueueOneFile(t, id, rootFs, boltDb)
@@ -82,7 +83,7 @@ func TestInternalUploadMoveExistingFile(t *testing.T) {
 	id := fmt.Sprintf("tiumef%v", time.Now().Unix())
 	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, true, true,
 		nil,
-		map[string]string{"tmp_upload_path": path.Join(runInstance.tmpUploadDir, id), "tmp_wait_time": "3s"})
+		map[string]string{"cache-tmp-upload-path": path.Join(runInstance.tmpUploadDir, id), "cache-tmp-wait-time": "3s"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	err := rootFs.Mkdir("one")
@@ -162,7 +163,7 @@ func TestInternalUploadQueueMoreFiles(t *testing.T) {
 	id := fmt.Sprintf("tiuqmf%v", time.Now().Unix())
 	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, true, true,
 		nil,
-		map[string]string{"tmp_upload_path": path.Join(runInstance.tmpUploadDir, id), "tmp_wait_time": "1s"})
+		map[string]string{"cache-tmp-upload-path": path.Join(runInstance.tmpUploadDir, id), "cache-tmp-wait-time": "1s"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	err := rootFs.Mkdir("test")
@@ -212,7 +213,7 @@ func TestInternalUploadTempFileOperations(t *testing.T) {
 	id := "tiutfo"
 	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, true, true,
 		nil,
-		map[string]string{"tmp_upload_path": path.Join(runInstance.tmpUploadDir, id), "tmp_wait_time": "1h"})
+		map[string]string{"cache-tmp-upload-path": path.Join(runInstance.tmpUploadDir, id), "cache-tmp-wait-time": "1h"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	boltDb.PurgeTempUploads()
@@ -342,7 +343,7 @@ func TestInternalUploadUploadingFileOperations(t *testing.T) {
 	id := "tiuufo"
 	rootFs, boltDb := runInstance.newCacheFs(t, remoteName, id, true, true,
 		nil,
-		map[string]string{"tmp_upload_path": path.Join(runInstance.tmpUploadDir, id), "tmp_wait_time": "1h"})
+		map[string]string{"cache-tmp-upload-path": path.Join(runInstance.tmpUploadDir, id), "cache-tmp-wait-time": "1h"})
 	defer runInstance.cleanupFs(t, rootFs, boltDb)

 	boltDb.PurgeTempUploads()
--- a/backend/cache/directory.go
+++ b/backend/cache/directory.go
@@ -3,15 +3,16 @@
 package cache

 import (
-	"path"
 	"time"

+	"path"
+
 	"github.com/ncw/rclone/fs"
 )

 // Directory is a generic dir that stores basic information about it
 type Directory struct {
-	Directory fs.Directory `json:"-"` // can be nil
+	fs.Directory `json:"-"`

 	CacheFs      *Fs    `json:"-"`       // cache fs
 	Name         string `json:"name"`    // name of the directory
@@ -124,14 +125,6 @@ func (d *Directory) Items() int64 {
 	return d.CacheItems
 }

-// ID returns the ID of the cached directory if known
-func (d *Directory) ID() string {
-	if d.Directory == nil {
-		return ""
-	}
-	return d.Directory.ID()
-}
-
 var (
 	_ fs.Directory = (*Directory)(nil)
 )
--- a/backend/cache/handle.go
+++ b/backend/cache/handle.go
@@ -5,11 +5,12 @@ package cache
 import (
 	"fmt"
 	"io"
+	"sync"
+	"time"
+
 	"path"
 	"runtime"
 	"strings"
-	"sync"
-	"time"

 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/operations"
@@ -48,13 +49,12 @@ type Handle struct {
 	offset         int64
 	seenOffsets    map[int64]bool
 	mu             sync.Mutex
-	workersWg      sync.WaitGroup
 	confirmReading chan bool
-	workers        int
-	maxWorkerID    int
-	UseMemory      bool
-	closed         bool
-	reading        bool
+
+	UseMemory bool
+	workers   []*worker
+	closed    bool
+	reading   bool
 }

 // NewObjectHandle returns a new Handle for an existing Object
@@ -65,14 +65,14 @@ func NewObjectHandle(o *Object, cfs *Fs) *Handle {
 		offset:        0,
 		preloadOffset: -1, // -1 to trigger the first preload

-		UseMemory: !cfs.opt.ChunkNoMemory,
+		UseMemory: cfs.chunkMemory,
 		reading:   false,
 	}
 	r.seenOffsets = make(map[int64]bool)
 	r.memory = NewMemory(-1)

 	// create a larger buffer to queue up requests
-	r.preloadQueue = make(chan int64, r.cfs.opt.TotalWorkers*10)
+	r.preloadQueue = make(chan int64, r.cfs.totalWorkers*10)
 	r.confirmReading = make(chan bool)
 	r.startReadWorkers()
 	return r
@@ -95,10 +95,10 @@ func (r *Handle) String() string {

 // startReadWorkers will start the worker pool
 func (r *Handle) startReadWorkers() {
-	if r.workers > 0 {
+	if r.hasAtLeastOneWorker() {
 		return
 	}
-	totalWorkers := r.cacheFs().opt.TotalWorkers
+	totalWorkers := r.cacheFs().totalWorkers

 	if r.cacheFs().plexConnector.isConfigured() {
 		if !r.cacheFs().plexConnector.isConnected() {
@@ -117,27 +117,26 @@ func (r *Handle) startReadWorkers() {

 // scaleOutWorkers will increase the worker pool count by the provided amount
 func (r *Handle) scaleWorkers(desired int) {
-	current := r.workers
+	current := len(r.workers)
 	if current == desired {
 		return
 	}
 	if current > desired {
 		// scale in gracefully
-		for r.workers > desired {
+		for i := 0; i < current-desired; i++ {
 			r.preloadQueue <- -1
-			r.workers--
 		}
 	} else {
 		// scale out
-		for r.workers < desired {
+		for i := 0; i < desired-current; i++ {
 			w := &worker{
 				r:  r,
-				id: r.maxWorkerID,
+				ch: r.preloadQueue,
+				id: current + i,
 			}
-			r.workersWg.Add(1)
-			r.workers++
-			r.maxWorkerID++
 			go w.run()
+
+			r.workers = append(r.workers, w)
 		}
 	}
 	// ignore first scale out from 0
@@ -149,7 +148,7 @@ func (r *Handle) scaleWorkers(desired int) {
 func (r *Handle) confirmExternalReading() {
 	// if we have a max value of workers
 	// then we skip this step
-	if r.workers > 1 ||
+	if len(r.workers) > 1 ||
 		!r.cacheFs().plexConnector.isConfigured() {
 		return
 	}
@@ -157,7 +156,7 @@ func (r *Handle) confirmExternalReading() {
 		return
 	}
 	fs.Infof(r, "confirmed reading by external reader")
-	r.scaleWorkers(r.cacheFs().opt.TotalWorkers)
+	r.scaleWorkers(r.cacheFs().totalMaxWorkers)
 }

 // queueOffset will send an offset to the workers if it's different from the last one
@@ -179,8 +178,8 @@ func (r *Handle) queueOffset(offset int64) {
 			}
 		}

-		for i := 0; i < r.workers; i++ {
-			o := r.preloadOffset + int64(r.cacheFs().opt.ChunkSize)*int64(i)
+		for i := 0; i < len(r.workers); i++ {
+			o := r.preloadOffset + r.cacheFs().chunkSize*int64(i)
 			if o < 0 || o >= r.cachedObject.Size() {
 				continue
 			}
@@ -194,6 +193,16 @@ func (r *Handle) queueOffset(offset int64) {
 	}
 }

+func (r *Handle) hasAtLeastOneWorker() bool {
+	oneWorker := false
+	for i := 0; i < len(r.workers); i++ {
+		if r.workers[i].isRunning() {
+			oneWorker = true
+		}
+	}
+	return oneWorker
+}
+
 // getChunk is called by the FS to retrieve a specific chunk of known start and size from where it can find it
 // it can be from transient or persistent cache
 // it will also build the chunk from the cache's specific chunk boundaries and build the final desired chunk in a buffer
@@ -202,7 +211,7 @@ func (r *Handle) getChunk(chunkStart int64) ([]byte, error) {
 	var err error

 	// we calculate the modulus of the requested offset with the size of a chunk
-	offset := chunkStart % int64(r.cacheFs().opt.ChunkSize)
+	offset := chunkStart % r.cacheFs().chunkSize

 	// we align the start offset of the first chunk to a likely chunk in the storage
 	chunkStart = chunkStart - offset
@@ -219,7 +228,7 @@ 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 := 0; i < r.cacheFs().readRetries*8; i++ {
 			data, err = r.storage().GetChunk(r.cachedObject, chunkStart)
 			if err == nil {
 				found = true
@@ -234,7 +243,7 @@ func (r *Handle) getChunk(chunkStart int64) ([]byte, error) {
 	// not found in ram or
 	// the worker didn't managed to download the chunk in time so we abort and close the stream
 	if err != nil || len(data) == 0 || !found {
-		if r.workers == 0 {
+		if !r.hasAtLeastOneWorker() {
 			fs.Errorf(r, "out of workers")
 			return nil, io.ErrUnexpectedEOF
 		}
@@ -246,7 +255,7 @@ func (r *Handle) getChunk(chunkStart int64) ([]byte, error) {
 	if offset > 0 {
 		if offset > int64(len(data)) {
 			fs.Errorf(r, "unexpected conditions during reading. current position: %v, current chunk position: %v, current chunk size: %v, offset: %v, chunk size: %v, file size: %v",
-				r.offset, chunkStart, len(data), offset, r.cacheFs().opt.ChunkSize, r.cachedObject.Size())
+				r.offset, chunkStart, len(data), offset, r.cacheFs().chunkSize, r.cachedObject.Size())
 			return nil, io.ErrUnexpectedEOF
 		}
 		data = data[int(offset):]
@@ -295,7 +304,14 @@ func (r *Handle) Close() error {
 	close(r.preloadQueue)
 	r.closed = true
 	// wait for workers to complete their jobs before returning
-	r.workersWg.Wait()
+	waitCount := 3
+	for i := 0; i < len(r.workers); i++ {
+		waitIdx := 0
+		for r.workers[i].isRunning() && waitIdx < waitCount {
+			time.Sleep(time.Second)
+			waitIdx++
+		}
+	}
 	r.memory.db.Flush()

 	fs.Debugf(r, "cache reader closed %v", r.offset)
@@ -322,9 +338,9 @@ func (r *Handle) Seek(offset int64, whence int) (int64, error) {
 		err = errors.Errorf("cache: unimplemented seek whence %v", whence)
 	}

-	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 := r.offset - (r.offset % r.cacheFs().chunkSize)
+	if chunkStart >= r.cacheFs().chunkSize {
+		chunkStart = chunkStart - r.cacheFs().chunkSize
 	}
 	r.queueOffset(chunkStart)

@@ -332,9 +348,12 @@ func (r *Handle) Seek(offset int64, whence int) (int64, error) {
 }

 type worker struct {
-	r  *Handle
-	rc io.ReadCloser
-	id int
+	r       *Handle
+	ch      <-chan int64
+	rc      io.ReadCloser
+	id      int
+	running bool
+	mu      sync.Mutex
 }

 // String is a representation of this worker
@@ -379,19 +398,33 @@ func (w *worker) reader(offset, end int64, closeOpen bool) (io.ReadCloser, error
 	})
 }

+func (w *worker) isRunning() bool {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+	return w.running
+}
+
+func (w *worker) setRunning(f bool) {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+	w.running = f
+}
+
 // run is the main loop for the worker which receives offsets to preload
 func (w *worker) run() {
 	var err error
 	var data []byte
+	defer w.setRunning(false)
 	defer func() {
 		if w.rc != nil {
 			_ = w.rc.Close()
+			w.setRunning(false)
 		}
-		w.r.workersWg.Done()
 	}()

 	for {
-		chunkStart, open := <-w.r.preloadQueue
+		chunkStart, open := <-w.ch
+		w.setRunning(true)
 		if chunkStart < 0 || !open {
 			break
 		}
@@ -418,7 +451,7 @@ func (w *worker) run() {
 			}
 		}

-		chunkEnd := chunkStart + int64(w.r.cacheFs().opt.ChunkSize)
+		chunkEnd := chunkStart + w.r.cacheFs().chunkSize
 		// TODO: Remove this comment if it proves to be reliable for #1896
 		//if chunkEnd > w.r.cachedObject.Size() {
 		//	chunkEnd = w.r.cachedObject.Size()
@@ -433,7 +466,7 @@ func (w *worker) download(chunkStart, chunkEnd int64, retry int) {
 	var data []byte

 	// stop retries
-	if retry >= w.r.cacheFs().opt.ReadRetries {
+	if retry >= w.r.cacheFs().readRetries {
 		return
 	}
 	// back-off between retries
@@ -579,7 +612,7 @@ func (b *backgroundWriter) run() {
 			return
 		}

-		absPath, err := b.fs.cache.getPendingUpload(b.fs.Root(), time.Duration(b.fs.opt.TempWaitTime))
+		absPath, err := b.fs.cache.getPendingUpload(b.fs.Root(), b.fs.tempWriteWait)
 		if err != nil || absPath == "" || !b.fs.isRootInPath(absPath) {
 			time.Sleep(time.Second)
 			continue
--- a/backend/cache/object.go
+++ b/backend/cache/object.go
@@ -44,7 +44,7 @@ func NewObject(f *Fs, remote string) *Object {

 	cacheType := objectInCache
 	parentFs := f.UnWrap()
-	if f.opt.TempWritePath != "" {
+	if f.tempWritePath != "" {
 		_, err := f.cache.SearchPendingUpload(fullRemote)
 		if err == nil { // queued for upload
 			cacheType = objectPendingUpload
@@ -75,7 +75,7 @@ func ObjectFromOriginal(f *Fs, o fs.Object) *Object {

 	cacheType := objectInCache
 	parentFs := f.UnWrap()
-	if f.opt.TempWritePath != "" {
+	if f.tempWritePath != "" {
 		_, err := f.cache.SearchPendingUpload(fullRemote)
 		if err == nil { // queued for upload
 			cacheType = objectPendingUpload
@@ -153,7 +153,7 @@ func (o *Object) Storable() bool {
 // 2. is not pending a notification from the wrapped fs
 func (o *Object) refresh() error {
 	isNotified := o.CacheFs.isNotifiedRemote(o.Remote())
-	isExpired := time.Now().After(o.CacheTs.Add(time.Duration(o.CacheFs.opt.InfoAge)))
+	isExpired := time.Now().After(o.CacheTs.Add(o.CacheFs.fileAge))
 	if !isExpired && !isNotified {
 		return nil
 	}
@@ -208,17 +208,11 @@ func (o *Object) SetModTime(t time.Time) error {

 // Open is used to request a specific part of the file using fs.RangeOption
 func (o *Object) Open(options ...fs.OpenOption) (io.ReadCloser, error) {
-	var err error
-
-	if o.Object == nil {
-		err = o.refreshFromSource(true)
-	} else {
-		err = o.refresh()
-	}
-	if err != nil {
+	if err := o.refreshFromSource(true); err != nil {
 		return nil, err
 	}

+	var err error
 	cacheReader := NewObjectHandle(o, o.CacheFs)
 	var offset, limit int64 = 0, -1
 	for _, option := range options {
@@ -243,7 +237,7 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 		return err
 	}
 	// pause background uploads if active
-	if o.CacheFs.opt.TempWritePath != "" {
+	if o.CacheFs.tempWritePath != "" {
 		o.CacheFs.backgroundRunner.pause()
 		defer o.CacheFs.backgroundRunner.play()
 		// don't allow started uploads
@@ -280,7 +274,7 @@ func (o *Object) Remove() error {
 		return err
 	}
 	// pause background uploads if active
-	if o.CacheFs.opt.TempWritePath != "" {
+	if o.CacheFs.tempWritePath != "" {
 		o.CacheFs.backgroundRunner.pause()
 		defer o.CacheFs.backgroundRunner.play()
 		// don't allow started uploads
@@ -359,13 +353,6 @@ func (o *Object) tempFileStartedUpload() bool {
 	return started
 }

-// UnWrap returns the Object that this Object is wrapping or
-// nil if it isn't wrapping anything
-func (o *Object) UnWrap() fs.Object {
-	return o.Object
-}
-
 var (
-	_ fs.Object          = (*Object)(nil)
-	_ fs.ObjectUnWrapper = (*Object)(nil)
+	_ fs.Object = (*Object)(nil)
 )
--- a/backend/cache/plex.go
+++ b/backend/cache/plex.go
@@ -3,19 +3,21 @@
 package cache

 import (
-	"bytes"
-	"crypto/tls"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"net/http"
 	"net/url"
 	"strings"
-	"sync"
 	"time"

+	"sync"
+
+	"bytes"
+	"io/ioutil"
+
 	"github.com/ncw/rclone/fs"
-	cache "github.com/patrickmn/go-cache"
+	"github.com/ncw/rclone/fs/config"
+	"github.com/patrickmn/go-cache"
 	"golang.org/x/net/websocket"
 )

@@ -53,17 +55,15 @@ type plexConnector struct {
 	username   string
 	password   string
 	token      string
-	insecure   bool
 	f          *Fs
 	mu         sync.Mutex
 	running    bool
 	runningMu  sync.Mutex
 	stateCache *cache.Cache
-	saveToken  func(string)
 }

 // newPlexConnector connects to a Plex server and generates a token
-func newPlexConnector(f *Fs, plexURL, username, password string, insecure bool, saveToken func(string)) (*plexConnector, error) {
+func newPlexConnector(f *Fs, plexURL, username, password string) (*plexConnector, error) {
 	u, err := url.ParseRequestURI(strings.TrimRight(plexURL, "/"))
 	if err != nil {
 		return nil, err
@@ -75,16 +75,14 @@ func newPlexConnector(f *Fs, plexURL, username, password string, insecure bool,
 		username:   username,
 		password:   password,
 		token:      "",
-		insecure:   insecure,
 		stateCache: cache.New(time.Hour, time.Minute),
-		saveToken:  saveToken,
 	}

 	return pc, nil
 }

 // newPlexConnector connects to a Plex server and generates a token
-func newPlexConnectorWithToken(f *Fs, plexURL, token string, insecure bool) (*plexConnector, error) {
+func newPlexConnectorWithToken(f *Fs, plexURL, token string) (*plexConnector, error) {
 	u, err := url.ParseRequestURI(strings.TrimRight(plexURL, "/"))
 	if err != nil {
 		return nil, err
@@ -94,7 +92,6 @@ func newPlexConnectorWithToken(f *Fs, plexURL, token string, insecure bool) (*pl
 		f:          f,
 		url:        u,
 		token:      token,
-		insecure:   insecure,
 		stateCache: cache.New(time.Hour, time.Minute),
 	}
 	pc.listenWebsocket()
@@ -109,26 +106,14 @@ func (p *plexConnector) closeWebsocket() {
 	p.running = false
 }

-func (p *plexConnector) websocketDial() (*websocket.Conn, error) {
-	u := strings.TrimRight(strings.Replace(strings.Replace(
-		p.url.String(), "http://", "ws://", 1), "https://", "wss://", 1), "/")
-	url := fmt.Sprintf(defPlexNotificationURL, u, p.token)
-
-	config, err := websocket.NewConfig(url, "http://localhost")
-	if err != nil {
-		return nil, err
-	}
-	if p.insecure {
-		config.TlsConfig = &tls.Config{InsecureSkipVerify: true}
-	}
-	return websocket.DialConfig(config)
-}
-
 func (p *plexConnector) listenWebsocket() {
 	p.runningMu.Lock()
 	defer p.runningMu.Unlock()

-	conn, err := p.websocketDial()
+	u := strings.Replace(p.url.String(), "http://", "ws://", 1)
+	u = strings.Replace(u, "https://", "wss://", 1)
+	conn, err := websocket.Dial(fmt.Sprintf(defPlexNotificationURL, strings.TrimRight(u, "/"), p.token),
+		"", "http://localhost")
 	if err != nil {
 		fs.Errorf("plex", "%v", err)
 		return
@@ -224,9 +209,8 @@ func (p *plexConnector) authenticate() error {
 	}
 	p.token = token
 	if p.token != "" {
-		if p.saveToken != nil {
-			p.saveToken(p.token)
-		}
+		config.FileSet(p.f.Name(), "plex_token", p.token)
+		config.SaveConfig()
 		fs.Infof(p.f.Name(), "Connected to Plex server: %v", p.url.String())
 	}
 	p.listenWebsocket()
--- a/backend/cache/storage_memory.go
+++ b/backend/cache/storage_memory.go
@@ -8,7 +8,7 @@ import (
 	"time"

 	"github.com/ncw/rclone/fs"
-	cache "github.com/patrickmn/go-cache"
+	"github.com/patrickmn/go-cache"
 	"github.com/pkg/errors"
 )

--- a/backend/cache/storage_persistent.go
+++ b/backend/cache/storage_persistent.go
@@ -3,17 +3,20 @@
 package cache

 import (
+	"time"
+
 	"bytes"
 	"encoding/binary"
 	"encoding/json"
-	"fmt"
-	"io/ioutil"
 	"os"
 	"path"
 	"strconv"
 	"strings"
 	"sync"
-	"time"
+
+	"io/ioutil"
+
+	"fmt"

 	bolt "github.com/coreos/bbolt"
 	"github.com/ncw/rclone/fs"
@@ -31,8 +34,7 @@ const (

 // Features flags for this storage type
 type Features struct {
-	PurgeDb    bool          // purge the db before starting
-	DbWaitTime time.Duration // time to wait for DB to be available
+	PurgeDb bool // purge the db before starting
 }

 var boltMap = make(map[string]*Persistent)
@@ -120,7 +122,7 @@ func (b *Persistent) connect() error {
 	if err != nil {
 		return errors.Wrapf(err, "failed to create a data directory %q", b.dataPath)
 	}
-	b.db, err = bolt.Open(b.dbPath, 0644, &bolt.Options{Timeout: b.features.DbWaitTime})
+	b.db, err = bolt.Open(b.dbPath, 0644, &bolt.Options{Timeout: *cacheDbWaitTime})
 	if err != nil {
 		return errors.Wrapf(err, "failed to open a cache connection to %q", b.dbPath)
 	}
@@ -340,7 +342,7 @@ func (b *Persistent) RemoveDir(fp string) error {
 // ExpireDir will flush a CachedDirectory and all its objects from the objects
 // chunks will remain as they are
 func (b *Persistent) ExpireDir(cd *Directory) error {
-	t := time.Now().Add(time.Duration(-cd.CacheFs.opt.InfoAge))
+	t := time.Now().Add(cd.CacheFs.fileAge * -1)
 	cd.CacheTs = &t

 	// expire all parents
@@ -398,7 +400,7 @@ func (b *Persistent) AddObject(cachedObject *Object) error {
 		if err != nil {
 			return errors.Errorf("couldn't marshal object (%v) info: %v", cachedObject, err)
 		}
-		err = bucket.Put([]byte(cachedObject.Name), encoded)
+		err = bucket.Put([]byte(cachedObject.Name), []byte(encoded))
 		if err != nil {
 			return errors.Errorf("couldn't cache object (%v) info: %v", cachedObject, err)
 		}
@@ -427,7 +429,7 @@ func (b *Persistent) RemoveObject(fp string) error {

 // ExpireObject will flush an Object and all its data if desired
 func (b *Persistent) ExpireObject(co *Object, withData bool) error {
-	co.CacheTs = time.Now().Add(time.Duration(-co.CacheFs.opt.InfoAge))
+	co.CacheTs = time.Now().Add(co.CacheFs.fileAge * -1)
 	err := b.AddObject(co)
 	if withData {
 		_ = os.RemoveAll(path.Join(b.dataPath, co.abs()))
@@ -809,7 +811,7 @@ func (b *Persistent) addPendingUpload(destPath string, started bool) error {
 		if err != nil {
 			return errors.Errorf("couldn't marshal object (%v) info: %v", destPath, err)
 		}
-		err = bucket.Put([]byte(destPath), encoded)
+		err = bucket.Put([]byte(destPath), []byte(encoded))
 		if err != nil {
 			return errors.Errorf("couldn't cache object (%v) info: %v", destPath, err)
 		}
@@ -1023,7 +1025,7 @@ func (b *Persistent) ReconcileTempUploads(cacheFs *Fs) error {
 		}

 		var queuedEntries []fs.Object
-		err = walk.ListR(cacheFs.tempFs, "", true, -1, walk.ListObjects, func(entries fs.DirEntries) error {
+		err = walk.Walk(cacheFs.tempFs, "", true, -1, func(path string, entries fs.DirEntries, err error) error {
 			for _, o := range entries {
 				if oo, ok := o.(fs.Object); ok {
 					queuedEntries = append(queuedEntries, oo)
@@ -1049,7 +1051,7 @@ func (b *Persistent) ReconcileTempUploads(cacheFs *Fs) error {
 			if err != nil {
 				return errors.Errorf("couldn't marshal object (%v) info: %v", queuedEntry, err)
 			}
-			err = bucket.Put([]byte(destPath), encoded)
+			err = bucket.Put([]byte(destPath), []byte(encoded))
 			if err != nil {
 				return errors.Errorf("couldn't cache object (%v) info: %v", destPath, err)
 			}
--- a/backend/crypt/cipher.go
+++ b/backend/crypt/cipher.go
@@ -17,9 +17,11 @@ import (
 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/accounting"
 	"github.com/pkg/errors"
-	"github.com/rfjakob/eme"
+
 	"golang.org/x/crypto/nacl/secretbox"
 	"golang.org/x/crypto/scrypt"
+
+	"github.com/rfjakob/eme"
 )

 // Constants
@@ -41,7 +43,6 @@ var (
 	ErrorBadDecryptControlChar   = errors.New("bad decryption - contains control chars")
 	ErrorNotAMultipleOfBlocksize = errors.New("not a multiple of blocksize")
 	ErrorTooShortAfterDecode     = errors.New("too short after base32 decode")
-	ErrorTooLongAfterDecode      = errors.New("too long after base32 decode")
 	ErrorEncryptedFileTooShort   = errors.New("file is too short to be encrypted")
 	ErrorEncryptedFileBadHeader  = errors.New("file has truncated block header")
 	ErrorEncryptedBadMagic       = errors.New("not an encrypted file - bad magic string")
@@ -285,9 +286,6 @@ func (c *cipher) decryptSegment(ciphertext string) (string, error) {
 		// not possible if decodeFilename() working correctly
 		return "", ErrorTooShortAfterDecode
 	}
-	if len(rawCiphertext) > 2048 {
-		return "", ErrorTooLongAfterDecode
-	}
 	paddedPlaintext := eme.Transform(c.block, c.nameTweak[:], rawCiphertext, eme.DirectionDecrypt)
 	plaintext, err := pkcs7.Unpad(nameCipherBlockSize, paddedPlaintext)
 	if err != nil {
@@ -463,7 +461,7 @@ func (c *cipher) deobfuscateSegment(ciphertext string) (string, error) {
 			if int(newRune) < base {
 				newRune += 256
 			}
-			_, _ = result.WriteRune(newRune)
+			_, _ = result.WriteRune(rune(newRune))

 		default:
 			_, _ = result.WriteRune(runeValue)
@@ -748,7 +746,7 @@ func (c *cipher) newDecrypter(rc io.ReadCloser) (*decrypter, error) {
 	if !bytes.Equal(readBuf[:fileMagicSize], fileMagicBytes) {
 		return nil, fh.finishAndClose(ErrorEncryptedBadMagic)
 	}
-	// retrieve the nonce
+	// retreive the nonce
 	fh.nonce.fromBuf(readBuf[fileMagicSize:])
 	fh.initialNonce = fh.nonce
 	return fh, nil
--- a/backend/crypt/cipher_test.go
+++ b/backend/crypt/cipher_test.go
@@ -24,7 +24,7 @@ func TestNewNameEncryptionMode(t *testing.T) {
 		{"off", NameEncryptionOff, ""},
 		{"standard", NameEncryptionStandard, ""},
 		{"obfuscate", NameEncryptionObfuscated, ""},
-		{"potato", NameEncryptionOff, "Unknown file name encryption mode \"potato\""},
+		{"potato", NameEncryptionMode(0), "Unknown file name encryption mode \"potato\""},
 	} {
 		actual, actualErr := NewNameEncryptionMode(test.in)
 		assert.Equal(t, actual, test.expected)
@@ -194,10 +194,6 @@ func TestEncryptSegment(t *testing.T) {

 func TestDecryptSegment(t *testing.T) {
 	// We've tested the forwards above, now concentrate on the errors
-	longName := make([]byte, 3328)
-	for i := range longName {
-		longName[i] = 'a'
-	}
 	c, _ := newCipher(NameEncryptionStandard, "", "", true)
 	for _, test := range []struct {
 		in          string
@@ -205,7 +201,6 @@ func TestDecryptSegment(t *testing.T) {
 	}{
 		{"64=", ErrorBadBase32Encoding},
 		{"!", base32.CorruptInputError(0)},
-		{string(longName), ErrorTooLongAfterDecode},
 		{encodeFileName([]byte("a")), ErrorNotAMultipleOfBlocksize},
 		{encodeFileName([]byte("123456789abcdef")), ErrorNotAMultipleOfBlocksize},
 		{encodeFileName([]byte("123456789abcdef0")), pkcs7.ErrorPaddingTooLong},
--- a/backend/crypt/crypt.go
+++ b/backend/crypt/crypt.go
@@ -4,20 +4,25 @@ package crypt
 import (
 	"fmt"
 	"io"
+	"path"
+	"strconv"
 	"strings"
 	"time"

 	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/accounting"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config"
+	"github.com/ncw/rclone/fs/config/flags"
 	"github.com/ncw/rclone/fs/config/obscure"
-	"github.com/ncw/rclone/fs/fspath"
 	"github.com/ncw/rclone/fs/hash"
 	"github.com/pkg/errors"
 )

 // Globals
+var (
+	// Flags
+	cryptShowMapping = flags.BoolP("crypt-show-mapping", "", false, "For all files listed show how the names encrypt.")
+)
+
 // Register with Fs
 func init() {
 	fs.Register(&fs.RegInfo{
@@ -25,13 +30,11 @@ func init() {
 		Description: "Encrypt/Decrypt a remote",
 		NewFs:       NewFs,
 		Options: []fs.Option{{
-			Name:     "remote",
-			Help:     "Remote to encrypt/decrypt.\nNormally should contain a ':' and a path, eg \"myremote:path/to/dir\",\n\"myremote:bucket\" or maybe \"myremote:\" (not recommended).",
-			Required: true,
+			Name: "remote",
+			Help: "Remote to encrypt/decrypt.\nNormally should contain a ':' and a path, eg \"myremote:path/to/dir\",\n\"myremote:bucket\" or maybe \"myremote:\" (not recommended).",
 		}, {
-			Name:    "filename_encryption",
-			Help:    "How to encrypt the filenames.",
-			Default: "standard",
+			Name: "filename_encryption",
+			Help: "How to encrypt the filenames.",
 			Examples: []fs.OptionExample{
 				{
 					Value: "off",
@@ -45,9 +48,8 @@ func init() {
 				},
 			},
 		}, {
-			Name:    "directory_name_encryption",
-			Help:    "Option to either encrypt directory names or leave them intact.",
-			Default: true,
+			Name: "directory_name_encryption",
+			Help: "Option to either encrypt directory names or leave them intact.",
 			Examples: []fs.OptionExample{
 				{
 					Value: "true",
@@ -66,98 +68,68 @@ func init() {
 			Name:       "password2",
 			Help:       "Password or pass phrase for salt. Optional but recommended.\nShould be different to the previous password.",
 			IsPassword: true,
-		}, {
-			Name: "show_mapping",
-			Help: `For all files listed show how the names encrypt.
-
-If this flag is set then for each file that the remote is asked to
-list, it will log (at level INFO) a line stating the decrypted file
-name and the encrypted file name.
-
-This is so you can work out which encrypted names are which decrypted
-names just in case you need to do something with the encrypted file
-names, or for debugging purposes.`,
-			Default:  false,
-			Hide:     fs.OptionHideConfigurator,
-			Advanced: true,
+			Optional:   true,
 		}},
 	})
 }

-// newCipherForConfig constructs a Cipher for the given config name
-func newCipherForConfig(opt *Options) (Cipher, error) {
-	mode, err := NewNameEncryptionMode(opt.FilenameEncryption)
+// NewCipher constructs a Cipher for the given config name
+func NewCipher(name string) (Cipher, error) {
+	mode, err := NewNameEncryptionMode(config.FileGet(name, "filename_encryption", "standard"))
 	if err != nil {
 		return nil, err
 	}
-	if opt.Password == "" {
+	dirNameEncrypt, err := strconv.ParseBool(config.FileGet(name, "directory_name_encryption", "true"))
+	if err != nil {
+		return nil, err
+	}
+	password := config.FileGet(name, "password", "")
+	if password == "" {
 		return nil, errors.New("password not set in config file")
 	}
-	password, err := obscure.Reveal(opt.Password)
+	password, err = obscure.Reveal(password)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to decrypt password")
 	}
-	var salt string
-	if opt.Password2 != "" {
-		salt, err = obscure.Reveal(opt.Password2)
+	salt := config.FileGet(name, "password2", "")
+	if salt != "" {
+		salt, err = obscure.Reveal(salt)
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to decrypt password2")
 		}
 	}
-	cipher, err := newCipher(mode, password, salt, opt.DirectoryNameEncryption)
+	cipher, err := newCipher(mode, password, salt, dirNameEncrypt)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to make cipher")
 	}
 	return cipher, nil
 }

-// NewCipher constructs a Cipher for the given config
-func NewCipher(m configmap.Mapper) (Cipher, error) {
-	// Parse config into Options struct
-	opt := new(Options)
-	err := configstruct.Set(m, opt)
+// NewFs contstructs an Fs from the path, container:path
+func NewFs(name, rpath string) (fs.Fs, error) {
+	cipher, err := NewCipher(name)
 	if err != nil {
 		return nil, err
 	}
-	return newCipherForConfig(opt)
-}
-
-// NewFs constructs an Fs from the path, container:path
-func NewFs(name, rpath 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
-	}
-	cipher, err := newCipherForConfig(opt)
-	if err != nil {
-		return nil, err
-	}
-	remote := opt.Remote
+	remote := config.FileGet(name, "remote")
 	if strings.HasPrefix(remote, name+":") {
 		return nil, errors.New("can't point crypt remote at itself - check the value of the remote setting")
 	}
-	wInfo, wName, wPath, wConfig, err := fs.ConfigFs(remote)
-	if err != nil {
-		return nil, errors.Wrapf(err, "failed to parse remote %q to wrap", remote)
-	}
 	// Look for a file first
-	remotePath := fspath.JoinRootPath(wPath, cipher.EncryptFileName(rpath))
-	wrappedFs, err := wInfo.NewFs(wName, remotePath, wConfig)
+	remotePath := path.Join(remote, cipher.EncryptFileName(rpath))
+	wrappedFs, err := fs.NewFs(remotePath)
 	// if that didn't produce a file, look for a directory
 	if err != fs.ErrorIsFile {
-		remotePath = fspath.JoinRootPath(wPath, cipher.EncryptDirName(rpath))
-		wrappedFs, err = wInfo.NewFs(wName, remotePath, wConfig)
+		remotePath = path.Join(remote, cipher.EncryptDirName(rpath))
+		wrappedFs, err = fs.NewFs(remotePath)
 	}
 	if err != fs.ErrorIsFile && err != nil {
-		return nil, errors.Wrapf(err, "failed to make remote %s:%q to wrap", wName, remotePath)
+		return nil, errors.Wrapf(err, "failed to make remote %q to wrap", remotePath)
 	}
 	f := &Fs{
 		Fs:     wrappedFs,
 		name:   name,
 		root:   rpath,
-		opt:    *opt,
 		cipher: cipher,
 	}
 	// the features here are ones we could support, and they are
@@ -173,7 +145,7 @@ func NewFs(name, rpath string, m configmap.Mapper) (fs.Fs, error) {

 	doChangeNotify := wrappedFs.Features().ChangeNotify
 	if doChangeNotify != nil {
-		f.features.ChangeNotify = func(notifyFunc func(string, fs.EntryType), pollInterval <-chan time.Duration) {
+		f.features.ChangeNotify = func(notifyFunc func(string, fs.EntryType), pollInterval time.Duration) chan bool {
 			wrappedNotifyFunc := func(path string, entryType fs.EntryType) {
 				decrypted, err := f.DecryptFileName(path)
 				if err != nil {
@@ -182,29 +154,18 @@ func NewFs(name, rpath string, m configmap.Mapper) (fs.Fs, error) {
 				}
 				notifyFunc(decrypted, entryType)
 			}
-			doChangeNotify(wrappedNotifyFunc, pollInterval)
+			return doChangeNotify(wrappedNotifyFunc, pollInterval)
 		}
 	}

 	return f, err
 }

-// Options defines the configuration for this backend
-type Options struct {
-	Remote                  string `config:"remote"`
-	FilenameEncryption      string `config:"filename_encryption"`
-	DirectoryNameEncryption bool   `config:"directory_name_encryption"`
-	Password                string `config:"password"`
-	Password2               string `config:"password2"`
-	ShowMapping             bool   `config:"show_mapping"`
-}
-
 // Fs represents a wrapped fs.Fs
 type Fs struct {
 	fs.Fs
 	name     string
 	root     string
-	opt      Options
 	features *fs.Features // optional features
 	cipher   Cipher
 }
@@ -237,7 +198,7 @@ func (f *Fs) add(entries *fs.DirEntries, obj fs.Object) {
 		fs.Debugf(remote, "Skipping undecryptable file name: %v", err)
 		return
 	}
-	if f.opt.ShowMapping {
+	if *cryptShowMapping {
 		fs.Logf(decryptedRemote, "Encrypts to %q", remote)
 	}
 	*entries = append(*entries, f.newObject(obj))
@@ -251,7 +212,7 @@ func (f *Fs) addDir(entries *fs.DirEntries, dir fs.Directory) {
 		fs.Debugf(remote, "Skipping undecryptable dir name: %v", err)
 		return
 	}
-	if f.opt.ShowMapping {
+	if *cryptShowMapping {
 		fs.Logf(decryptedRemote, "Encrypts to %q", remote)
 	}
 	*entries = append(*entries, f.newDir(dir))
@@ -344,13 +305,7 @@ func (f *Fs) put(in io.Reader, src fs.ObjectInfo, options []fs.OpenOption, put p
 		if err != nil {
 			return nil, err
 		}
-		// unwrap the accounting
-		var wrap accounting.WrapFn
-		wrappedIn, wrap = accounting.UnWrap(wrappedIn)
-		// add the hasher
 		wrappedIn = io.TeeReader(wrappedIn, hasher)
-		// wrap the accounting back on
-		wrappedIn = wrap(wrappedIn)
 	}

 	// Transfer the data
@@ -555,7 +510,7 @@ func (f *Fs) DecryptFileName(encryptedFileName string) (string, error) {
 }

 // ComputeHash takes the nonce from o, and encrypts the contents of
-// src with it, and calculates the hash given by HashType on the fly
+// src with it, and calcuates the hash given by HashType on the fly
 //
 // Note that we break lots of encapsulation in this function.
 func (f *Fs) ComputeHash(o *Object, src fs.Object, hashType hash.Type) (hashStr string, err error) {
@@ -723,15 +678,15 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio

 // newDir returns a dir with the Name decrypted
 func (f *Fs) newDir(dir fs.Directory) fs.Directory {
-	newDir := fs.NewDirCopy(dir)
+	new := fs.NewDirCopy(dir)
 	remote := dir.Remote()
 	decryptedRemote, err := f.cipher.DecryptDirName(remote)
 	if err != nil {
 		fs.Debugf(remote, "Undecryptable dir name: %v", err)
 	} else {
-		newDir.SetRemote(decryptedRemote)
+		new.SetRemote(decryptedRemote)
 	}
-	return newDir
+	return new
 }

 // ObjectInfo describes a wrapped fs.ObjectInfo for being the source
--- a/backend/crypt/crypt_test.go
+++ b/backend/crypt/crypt_test.go
@@ -7,30 +7,13 @@ import (
 	"testing"

 	"github.com/ncw/rclone/backend/crypt"
-	_ "github.com/ncw/rclone/backend/drive" // for integration tests
 	_ "github.com/ncw/rclone/backend/local"
-	_ "github.com/ncw/rclone/backend/swift" // for integration tests
 	"github.com/ncw/rclone/fs/config/obscure"
-	"github.com/ncw/rclone/fstest"
 	"github.com/ncw/rclone/fstest/fstests"
 )

-// TestIntegration runs integration tests against the remote
-func TestIntegration(t *testing.T) {
-	if *fstest.RemoteName == "" {
-		t.Skip("Skipping as -remote not set")
-	}
-	fstests.Run(t, &fstests.Opt{
-		RemoteName: *fstest.RemoteName,
-		NilObject:  (*crypt.Object)(nil),
-	})
-}
-
 // TestStandard runs integration tests against the remote
 func TestStandard(t *testing.T) {
-	if *fstest.RemoteName != "" {
-		t.Skip("Skipping as -remote set")
-	}
 	tempdir := filepath.Join(os.TempDir(), "rclone-crypt-test-standard")
 	name := "TestCrypt"
 	fstests.Run(t, &fstests.Opt{
@@ -47,9 +30,6 @@ func TestStandard(t *testing.T) {

 // TestOff runs integration tests against the remote
 func TestOff(t *testing.T) {
-	if *fstest.RemoteName != "" {
-		t.Skip("Skipping as -remote set")
-	}
 	tempdir := filepath.Join(os.TempDir(), "rclone-crypt-test-off")
 	name := "TestCrypt2"
 	fstests.Run(t, &fstests.Opt{
@@ -66,9 +46,6 @@ func TestOff(t *testing.T) {

 // TestObfuscate runs integration tests against the remote
 func TestObfuscate(t *testing.T) {
-	if *fstest.RemoteName != "" {
-		t.Skip("Skipping as -remote set")
-	}
 	tempdir := filepath.Join(os.TempDir(), "rclone-crypt-test-obfuscate")
 	name := "TestCrypt3"
 	fstests.Run(t, &fstests.Opt{
--- a/backend/drive/drive.go
+++ b/backend/drive/drive.go
--- a/backend/drive/drive_internal_test.go
+++ b/backend/drive/drive_internal_test.go
@@ -1,82 +1,63 @@
-// +build go1.9
-
 package drive

 import (
-	"bytes"
 	"encoding/json"
-	"io"
-	"io/ioutil"
-	"mime"
-	"path/filepath"
-	"strings"
 	"testing"

-	_ "github.com/ncw/rclone/backend/local"
-	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/operations"
-	"github.com/ncw/rclone/fstest/fstests"
+	"google.golang.org/api/drive/v3"
+
 	"github.com/pkg/errors"
 	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"google.golang.org/api/drive/v3"
 )

-func TestDriveScopes(t *testing.T) {
-	for _, test := range []struct {
-		in       string
-		want     []string
-		wantFlag bool
-	}{
-		{"", []string{
-			"https://www.googleapis.com/auth/drive",
-		}, false},
-		{" drive.file , drive.readonly", []string{
-			"https://www.googleapis.com/auth/drive.file",
-			"https://www.googleapis.com/auth/drive.readonly",
-		}, false},
-		{" drive.file , drive.appfolder", []string{
-			"https://www.googleapis.com/auth/drive.file",
-			"https://www.googleapis.com/auth/drive.appfolder",
-		}, true},
-	} {
-		got := driveScopes(test.in)
-		assert.Equal(t, test.want, got, test.in)
-		gotFlag := driveScopesContainsAppFolder(got)
-		assert.Equal(t, test.wantFlag, gotFlag, test.in)
-	}
-}
+const exampleExportFormats = `{
+	"application/vnd.google-apps.document": [
+		"application/rtf",
+		"application/vnd.oasis.opendocument.text",
+		"text/html",
+		"application/pdf",
+		"application/epub+zip",
+		"application/zip",
+		"application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+		"text/plain"
+	],
+	"application/vnd.google-apps.spreadsheet": [
+		"application/x-vnd.oasis.opendocument.spreadsheet",
+		"text/tab-separated-values",
+		"application/pdf",
+		"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+		"text/csv",
+		"application/zip",
+		"application/vnd.oasis.opendocument.spreadsheet"
+	],
+	"application/vnd.google-apps.jam": [
+		"application/pdf"
+	],
+	"application/vnd.google-apps.script": [
+		"application/vnd.google-apps.script+json"
+	],
+	"application/vnd.google-apps.presentation": [
+		"application/vnd.oasis.opendocument.presentation",
+		"application/pdf",
+		"application/vnd.openxmlformats-officedocument.presentationml.presentation",
+		"text/plain"
+	],
+	"application/vnd.google-apps.form": [
+		"application/zip"
+	],
+	"application/vnd.google-apps.drawing": [
+		"image/svg+xml",
+		"image/png",
+		"application/pdf",
+		"image/jpeg"
+	]
+}`

-/*
-var additionalMimeTypes = map[string]string{
-	"application/vnd.ms-excel.sheet.macroenabled.12":                          ".xlsm",
-	"application/vnd.ms-excel.template.macroenabled.12":                       ".xltm",
-	"application/vnd.ms-powerpoint.presentation.macroenabled.12":              ".pptm",
-	"application/vnd.ms-powerpoint.slideshow.macroenabled.12":                 ".ppsm",
-	"application/vnd.ms-powerpoint.template.macroenabled.12":                  ".potm",
-	"application/vnd.ms-powerpoint":                                           ".ppt",
-	"application/vnd.ms-word.document.macroenabled.12":                        ".docm",
-	"application/vnd.ms-word.template.macroenabled.12":                        ".dotm",
-	"application/vnd.openxmlformats-officedocument.presentationml.template":   ".potx",
-	"application/vnd.openxmlformats-officedocument.spreadsheetml.template":    ".xltx",
-	"application/vnd.openxmlformats-officedocument.wordprocessingml.template": ".dotx",
-	"application/vnd.sun.xml.writer":                                          ".sxw",
-	"text/richtext":                                                           ".rtf",
-}
-*/
+var exportFormats map[string][]string

 // Load the example export formats into exportFormats for testing
-func TestInternalLoadExampleFormats(t *testing.T) {
-	fetchFormatsOnce.Do(func() {})
-	buf, err := ioutil.ReadFile(filepath.FromSlash("test/about.json"))
-	var about struct {
-		ExportFormats map[string][]string `json:"exportFormats,omitempty"`
-		ImportFormats map[string][]string `json:"importFormats,omitempty"`
-	}
-	require.NoError(t, err)
-	require.NoError(t, json.Unmarshal(buf, &about))
-	_exportFormats = fixMimeTypeMap(about.ExportFormats)
-	_importFormats = fixMimeTypeMap(about.ImportFormats)
+func TestInternalLoadExampleExportFormats(t *testing.T) {
+	assert.NoError(t, json.Unmarshal([]byte(exampleExportFormats), &exportFormats))
 }

 func TestInternalParseExtensions(t *testing.T) {
@@ -85,204 +66,47 @@ func TestInternalParseExtensions(t *testing.T) {
 		want    []string
 		wantErr error
 	}{
-		{"doc", []string{".doc"}, nil},
-		{" docx ,XLSX, 	pptx,svg", []string{".docx", ".xlsx", ".pptx", ".svg"}, nil},
-		{"docx,svg,Docx", []string{".docx", ".svg"}, nil},
-		{"docx,potato,docx", []string{".docx"}, errors.New(`couldn't find MIME type for extension ".potato"`)},
+		{"doc", []string{"doc"}, nil},
+		{" docx ,XLSX, 	pptx,svg", []string{"docx", "xlsx", "pptx", "svg"}, nil},
+		{"docx,svg,Docx", []string{"docx", "svg"}, nil},
+		{"docx,potato,docx", []string{"docx"}, errors.New(`couldn't find mime type for extension "potato"`)},
 	} {
-		extensions, _, gotErr := parseExtensions(test.in)
+		f := new(Fs)
+		gotErr := f.parseExtensions(test.in)
 		if test.wantErr == nil {
 			assert.NoError(t, gotErr)
 		} else {
 			assert.EqualError(t, gotErr, test.wantErr.Error())
 		}
-		assert.Equal(t, test.want, extensions)
+		assert.Equal(t, test.want, f.extensions)
 	}

 	// Test it is appending
-	extensions, _, gotErr := parseExtensions("docx,svg", "docx,svg,xlsx")
-	assert.NoError(t, gotErr)
-	assert.Equal(t, []string{".docx", ".svg", ".xlsx"}, extensions)
+	f := new(Fs)
+	assert.Nil(t, f.parseExtensions("docx,svg"))
+	assert.Nil(t, f.parseExtensions("docx,svg,xlsx"))
+	assert.Equal(t, []string{"docx", "svg", "xlsx"}, f.extensions)
+
 }

 func TestInternalFindExportFormat(t *testing.T) {
-	item := &drive.File{
-		Name:     "file",
-		MimeType: "application/vnd.google-apps.document",
-	}
+	item := new(drive.File)
+	item.MimeType = "application/vnd.google-apps.document"
 	for _, test := range []struct {
 		extensions    []string
 		wantExtension string
 		wantMimeType  string
 	}{
 		{[]string{}, "", ""},
-		{[]string{".pdf"}, ".pdf", "application/pdf"},
-		{[]string{".pdf", ".rtf", ".xls"}, ".pdf", "application/pdf"},
-		{[]string{".xls", ".rtf", ".pdf"}, ".rtf", "application/rtf"},
-		{[]string{".xls", ".csv", ".svg"}, "", ""},
+		{[]string{"pdf"}, "pdf", "application/pdf"},
+		{[]string{"pdf", "rtf", "xls"}, "pdf", "application/pdf"},
+		{[]string{"xls", "rtf", "pdf"}, "rtf", "application/rtf"},
+		{[]string{"xls", "csv", "svg"}, "", ""},
 	} {
 		f := new(Fs)
-		f.exportExtensions = test.extensions
-		gotExtension, gotFilename, gotMimeType, gotIsDocument := f.findExportFormat(item)
+		f.extensions = test.extensions
+		gotExtension, gotMimeType := f.findExportFormat("file", exportFormats[item.MimeType])
 		assert.Equal(t, test.wantExtension, gotExtension)
-		if test.wantExtension != "" {
-			assert.Equal(t, item.Name+gotExtension, gotFilename)
-		} else {
-			assert.Equal(t, "", gotFilename)
-		}
 		assert.Equal(t, test.wantMimeType, gotMimeType)
-		assert.Equal(t, true, gotIsDocument)
 	}
 }
-
-func TestMimeTypesToExtension(t *testing.T) {
-	for mimeType, extension := range _mimeTypeToExtension {
-		extensions, err := mime.ExtensionsByType(mimeType)
-		assert.NoError(t, err)
-		assert.Contains(t, extensions, extension)
-	}
-}
-
-func TestExtensionToMimeType(t *testing.T) {
-	for mimeType, extension := range _mimeTypeToExtension {
-		gotMimeType := mime.TypeByExtension(extension)
-		mediatype, _, err := mime.ParseMediaType(gotMimeType)
-		assert.NoError(t, err)
-		assert.Equal(t, mimeType, mediatype)
-	}
-}
-
-func TestExtensionsForExportFormats(t *testing.T) {
-	if _exportFormats == nil {
-		t.Error("exportFormats == nil")
-	}
-	for fromMT, toMTs := range _exportFormats {
-		for _, toMT := range toMTs {
-			if !isInternalMimeType(toMT) {
-				extensions, err := mime.ExtensionsByType(toMT)
-				assert.NoError(t, err, "invalid MIME type %q", toMT)
-				assert.NotEmpty(t, extensions, "No extension found for %q (from: %q)", fromMT, toMT)
-			}
-		}
-	}
-}
-
-func TestExtensionsForImportFormats(t *testing.T) {
-	t.Skip()
-	if _importFormats == nil {
-		t.Error("_importFormats == nil")
-	}
-	for fromMT := range _importFormats {
-		if !isInternalMimeType(fromMT) {
-			extensions, err := mime.ExtensionsByType(fromMT)
-			assert.NoError(t, err, "invalid MIME type %q", fromMT)
-			assert.NotEmpty(t, extensions, "No extension found for %q", fromMT)
-		}
-	}
-}
-
-func (f *Fs) InternalTestDocumentImport(t *testing.T) {
-	oldAllow := f.opt.AllowImportNameChange
-	f.opt.AllowImportNameChange = true
-	defer func() {
-		f.opt.AllowImportNameChange = oldAllow
-	}()
-
-	testFilesPath, err := filepath.Abs(filepath.FromSlash("test/files"))
-	require.NoError(t, err)
-
-	testFilesFs, err := fs.NewFs(testFilesPath)
-	require.NoError(t, err)
-
-	_, f.importMimeTypes, err = parseExtensions("odt,ods,doc")
-	require.NoError(t, err)
-
-	err = operations.CopyFile(f, testFilesFs, "example2.doc", "example2.doc")
-	require.NoError(t, err)
-}
-
-func (f *Fs) InternalTestDocumentUpdate(t *testing.T) {
-	testFilesPath, err := filepath.Abs(filepath.FromSlash("test/files"))
-	require.NoError(t, err)
-
-	testFilesFs, err := fs.NewFs(testFilesPath)
-	require.NoError(t, err)
-
-	_, f.importMimeTypes, err = parseExtensions("odt,ods,doc")
-	require.NoError(t, err)
-
-	err = operations.CopyFile(f, testFilesFs, "example2.xlsx", "example1.ods")
-	require.NoError(t, err)
-}
-
-func (f *Fs) InternalTestDocumentExport(t *testing.T) {
-	var buf bytes.Buffer
-	var err error
-
-	f.exportExtensions, _, err = parseExtensions("txt")
-	require.NoError(t, err)
-
-	obj, err := f.NewObject("example2.txt")
-	require.NoError(t, err)
-
-	rc, err := obj.Open()
-	require.NoError(t, err)
-	defer func() { require.NoError(t, rc.Close()) }()
-
-	_, err = io.Copy(&buf, rc)
-	require.NoError(t, err)
-	text := buf.String()
-
-	for _, excerpt := range []string{
-		"Lorem ipsum dolor sit amet, consectetur",
-		"porta at ultrices in, consectetur at augue.",
-	} {
-		require.Contains(t, text, excerpt)
-	}
-}
-
-func (f *Fs) InternalTestDocumentLink(t *testing.T) {
-	var buf bytes.Buffer
-	var err error
-
-	f.exportExtensions, _, err = parseExtensions("link.html")
-	require.NoError(t, err)
-
-	obj, err := f.NewObject("example2.link.html")
-	require.NoError(t, err)
-
-	rc, err := obj.Open()
-	require.NoError(t, err)
-	defer func() { require.NoError(t, rc.Close()) }()
-
-	_, err = io.Copy(&buf, rc)
-	require.NoError(t, err)
-	text := buf.String()
-
-	require.True(t, strings.HasPrefix(text, "<html>"))
-	require.True(t, strings.HasSuffix(text, "</html>\n"))
-	for _, excerpt := range []string{
-		`<meta http-equiv="refresh"`,
-		`Loading <a href="`,
-	} {
-		require.Contains(t, text, excerpt)
-	}
-}
-
-func (f *Fs) InternalTest(t *testing.T) {
-	// These tests all depend on each other so run them as nested tests
-	t.Run("DocumentImport", func(t *testing.T) {
-		f.InternalTestDocumentImport(t)
-		t.Run("DocumentUpdate", func(t *testing.T) {
-			f.InternalTestDocumentUpdate(t)
-			t.Run("DocumentExport", func(t *testing.T) {
-				f.InternalTestDocumentExport(t)
-				t.Run("DocumentLink", func(t *testing.T) {
-					f.InternalTestDocumentLink(t)
-				})
-			})
-		})
-	})
-}
-
-var _ fstests.InternalTester = (*Fs)(nil)
--- a/backend/drive/drive_test.go
+++ b/backend/drive/drive_test.go
@@ -1,13 +1,10 @@
 // Test Drive filesystem interface
-
-// +build go1.9
-
-package drive
+package drive_test

 import (
 	"testing"

-	"github.com/ncw/rclone/fs"
+	"github.com/ncw/rclone/backend/drive"
 	"github.com/ncw/rclone/fstest/fstests"
 )

@@ -15,23 +12,6 @@ import (
 func TestIntegration(t *testing.T) {
 	fstests.Run(t, &fstests.Opt{
 		RemoteName: "TestDrive:",
-		NilObject:  (*Object)(nil),
-		ChunkedUpload: fstests.ChunkedUploadConfig{
-			MinChunkSize:  minChunkSize,
-			CeilChunkSize: fstests.NextPowerOfTwo,
-		},
+		NilObject:  (*drive.Object)(nil),
 	})
 }
-
-func (f *Fs) SetUploadChunkSize(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadChunkSize(cs)
-}
-
-func (f *Fs) SetUploadCutoff(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadCutoff(cs)
-}
-
-var (
-	_ fstests.SetUploadChunkSizer = (*Fs)(nil)
-	_ fstests.SetUploadCutoffer   = (*Fs)(nil)
-)
--- a/backend/drive/drive_unsupported.go
+++ b/backend/drive/drive_unsupported.go
@@ -1,6 +0,0 @@
-// Build for unsupported platforms to stop go complaining
-// about "no buildable Go source files "
-
-// +build !go1.9
-
-package drive
--- a/backend/drive/test/about.json
+++ b/backend/drive/test/about.json
@@ -1,178 +0,0 @@
-{
- "importFormats": {
-  "text/tab-separated-values": [
-   "application/vnd.google-apps.spreadsheet"
-  ],
-  "application/x-vnd.oasis.opendocument.presentation": [
-   "application/vnd.google-apps.presentation"
-  ],
-  "image/jpeg": [
-   "application/vnd.google-apps.document"
-  ],
-  "image/bmp": [
-   "application/vnd.google-apps.document"
-  ],
-  "image/gif": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.ms-excel.sheet.macroenabled.12": [
-   "application/vnd.google-apps.spreadsheet"
-  ],
-  "application/vnd.openxmlformats-officedocument.wordprocessingml.template": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.ms-powerpoint.presentation.macroenabled.12": [
-   "application/vnd.google-apps.presentation"
-  ],
-  "application/vnd.ms-word.template.macroenabled.12": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.openxmlformats-officedocument.wordprocessingml.document": [
-   "application/vnd.google-apps.document"
-  ],
-  "image/pjpeg": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.google-apps.script+text/plain": [
-   "application/vnd.google-apps.script"
-  ],
-  "application/vnd.ms-excel": [
-   "application/vnd.google-apps.spreadsheet"
-  ],
-  "application/vnd.sun.xml.writer": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.ms-word.document.macroenabled.12": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.ms-powerpoint.slideshow.macroenabled.12": [
-   "application/vnd.google-apps.presentation"
-  ],
-  "text/rtf": [
-   "application/vnd.google-apps.document"
-  ],
-  "text/plain": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.oasis.opendocument.spreadsheet": [
-   "application/vnd.google-apps.spreadsheet"
-  ],
-  "application/x-vnd.oasis.opendocument.spreadsheet": [
-   "application/vnd.google-apps.spreadsheet"
-  ],
-  "image/png": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/x-vnd.oasis.opendocument.text": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/msword": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/pdf": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/json": [
-   "application/vnd.google-apps.script"
-  ],
-  "application/x-msmetafile": [
-   "application/vnd.google-apps.drawing"
-  ],
-  "application/vnd.openxmlformats-officedocument.spreadsheetml.template": [
-   "application/vnd.google-apps.spreadsheet"
-  ],
-  "application/vnd.ms-powerpoint": [
-   "application/vnd.google-apps.presentation"
-  ],
-  "application/vnd.ms-excel.template.macroenabled.12": [
-   "application/vnd.google-apps.spreadsheet"
-  ],
-  "image/x-bmp": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/rtf": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.openxmlformats-officedocument.presentationml.template": [
-   "application/vnd.google-apps.presentation"
-  ],
-  "image/x-png": [
-   "application/vnd.google-apps.document"
-  ],
-  "text/html": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.oasis.opendocument.text": [
-   "application/vnd.google-apps.document"
-  ],
-  "application/vnd.openxmlformats-officedocument.presentationml.presentation": [
-   "application/vnd.google-apps.presentation"
-  ],
-  "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": [
-   "application/vnd.google-apps.spreadsheet"
-  ],
-  "application/vnd.google-apps.script+json": [
-   "application/vnd.google-apps.script"
-  ],
-  "application/vnd.openxmlformats-officedocument.presentationml.slideshow": [
-   "application/vnd.google-apps.presentation"
-  ],
-  "application/vnd.ms-powerpoint.template.macroenabled.12": [
-   "application/vnd.google-apps.presentation"
-  ],
-  "text/csv": [
-   "application/vnd.google-apps.spreadsheet"
-  ],
-  "application/vnd.oasis.opendocument.presentation": [
-   "application/vnd.google-apps.presentation"
-  ],
-  "image/jpg": [
-   "application/vnd.google-apps.document"
-  ],
-  "text/richtext": [
-   "application/vnd.google-apps.document"
-  ]
- },
- "exportFormats": {
-  "application/vnd.google-apps.document": [
-   "application/rtf",
-   "application/vnd.oasis.opendocument.text",
-   "text/html",
-   "application/pdf",
-   "application/epub+zip",
-   "application/zip",
-   "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
-   "text/plain"
-  ],
-  "application/vnd.google-apps.spreadsheet": [
-   "application/x-vnd.oasis.opendocument.spreadsheet",
-   "text/tab-separated-values",
-   "application/pdf",
-   "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
-   "text/csv",
-   "application/zip",
-   "application/vnd.oasis.opendocument.spreadsheet"
-  ],
-  "application/vnd.google-apps.jam": [
-   "application/pdf"
-  ],
-  "application/vnd.google-apps.script": [
-   "application/vnd.google-apps.script+json"
-  ],
-  "application/vnd.google-apps.presentation": [
-   "application/vnd.oasis.opendocument.presentation",
-   "application/pdf",
-   "application/vnd.openxmlformats-officedocument.presentationml.presentation",
-   "text/plain"
-  ],
-  "application/vnd.google-apps.form": [
-   "application/zip"
-  ],
-  "application/vnd.google-apps.drawing": [
-   "image/svg+xml",
-   "image/png",
-   "application/pdf",
-   "image/jpeg"
-  ]
- }
-}
--- a/backend/drive/test/files/example1.ods
+++ b/backend/drive/test/files/example1.ods
--- a/backend/drive/test/files/example2.doc
+++ b/backend/drive/test/files/example2.doc
--- a/backend/drive/test/files/example3.odt
+++ b/backend/drive/test/files/example3.odt
--- a/backend/drive/upload.go
+++ b/backend/drive/upload.go
@@ -8,8 +8,6 @@
 //
 // This contains code adapted from google.golang.org/api (C) the GO AUTHORS

-// +build go1.9
-
 package drive

 import (
@@ -52,16 +50,15 @@ type resumableUpload struct {
 }

 // Upload the io.Reader in of size bytes with contentType and info
-func (f *Fs) Upload(in io.Reader, size int64, contentType, fileID, remote string, info *drive.File) (*drive.File, error) {
-	params := url.Values{
-		"alt":        {"json"},
-		"uploadType": {"resumable"},
-		"fields":     {partialFields},
-	}
+func (f *Fs) Upload(in io.Reader, size int64, contentType string, fileID string, info *drive.File, remote string) (*drive.File, error) {
+	params := make(url.Values)
+	params.Set("alt", "json")
+	params.Set("uploadType", "resumable")
+	params.Set("fields", partialFields)
 	if f.isTeamDrive {
 		params.Set("supportsTeamDrives", "true")
 	}
-	if f.opt.KeepRevisionForever {
+	if *driveKeepRevisionForever {
 		params.Set("keepRevisionForever", "true")
 	}
 	urls := "https://www.googleapis.com/upload/drive/v3/files"
@@ -185,7 +182,7 @@ func (rx *resumableUpload) transferChunk(start int64, chunk io.ReadSeeker, chunk
 	// been 200 OK.
 	//
 	// So parse the response out of the body.  We aren't expecting
-	// any other 2xx codes, so we parse it unconditionally on
+	// any other 2xx codes, so we parse it unconditionaly on
 	// StatusCode
 	if err = json.NewDecoder(res.Body).Decode(&rx.ret); err != nil {
 		return 598, err
@@ -200,11 +197,11 @@ func (rx *resumableUpload) Upload() (*drive.File, error) {
 	start := int64(0)
 	var StatusCode int
 	var err error
-	buf := make([]byte, int(rx.f.opt.ChunkSize))
+	buf := make([]byte, int(chunkSize))
 	for start < rx.ContentLength {
 		reqSize := rx.ContentLength - start
-		if reqSize >= int64(rx.f.opt.ChunkSize) {
-			reqSize = int64(rx.f.opt.ChunkSize)
+		if reqSize >= int64(chunkSize) {
+			reqSize = int64(chunkSize)
 		}
 		chunk := readers.NewRepeatableLimitReaderBuffer(rx.Media, buf, reqSize)

--- a/backend/dropbox/dropbox.go
+++ b/backend/dropbox/dropbox.go
@@ -31,16 +31,13 @@ import (
 	"time"

 	"github.com/dropbox/dropbox-sdk-go-unofficial/dropbox"
-	"github.com/dropbox/dropbox-sdk-go-unofficial/dropbox/auth"
 	"github.com/dropbox/dropbox-sdk-go-unofficial/dropbox/common"
 	"github.com/dropbox/dropbox-sdk-go-unofficial/dropbox/files"
 	"github.com/dropbox/dropbox-sdk-go-unofficial/dropbox/sharing"
-	"github.com/dropbox/dropbox-sdk-go-unofficial/dropbox/team"
 	"github.com/dropbox/dropbox-sdk-go-unofficial/dropbox/users"
 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/config"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config/flags"
 	"github.com/ncw/rclone/fs/config/obscure"
 	"github.com/ncw/rclone/fs/fserrors"
 	"github.com/ncw/rclone/fs/hash"
@@ -58,6 +55,24 @@ const (
 	minSleep                    = 10 * time.Millisecond
 	maxSleep                    = 2 * time.Second
 	decayConstant               = 2 // bigger for slower decay, exponential
+)
+
+var (
+	// Description of how to auth for this app
+	dropboxConfig = &oauth2.Config{
+		Scopes: []string{},
+		// Endpoint: oauth2.Endpoint{
+		// 	AuthURL:  "https://www.dropbox.com/1/oauth2/authorize",
+		// 	TokenURL: "https://api.dropboxapi.com/1/oauth2/token",
+		// },
+		Endpoint:     dropbox.OAuthEndpoint(""),
+		ClientID:     rcloneClientID,
+		ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
+		RedirectURL:  oauthutil.RedirectLocalhostURL,
+	}
+	// A regexp matching path names for files Dropbox ignores
+	// See https://www.dropbox.com/en/help/145 - Ignored files
+	ignoredFiles = regexp.MustCompile(`(?i)(^|/)(desktop\.ini|thumbs\.db|\.ds_store|icon\r|\.dropbox|\.dropbox.attr)$`)
 	// Upload chunk size - setting too small makes uploads slow.
 	// Chunks are buffered into memory for retries.
 	//
@@ -81,26 +96,8 @@ const (
 	// Choose 48MB which is 91% of Maximum speed.  rclone by
 	// default does 4 transfers so this should use 4*48MB = 192MB
 	// by default.
-	defaultChunkSize = 48 * fs.MebiByte
-	maxChunkSize     = 150 * fs.MebiByte
-)
-
-var (
-	// Description of how to auth for this app
-	dropboxConfig = &oauth2.Config{
-		Scopes: []string{},
-		// Endpoint: oauth2.Endpoint{
-		// 	AuthURL:  "https://www.dropbox.com/1/oauth2/authorize",
-		// 	TokenURL: "https://api.dropboxapi.com/1/oauth2/token",
-		// },
-		Endpoint:     dropbox.OAuthEndpoint(""),
-		ClientID:     rcloneClientID,
-		ClientSecret: obscure.MustReveal(rcloneEncryptedClientSecret),
-		RedirectURL:  oauthutil.RedirectLocalhostURL,
-	}
-	// A regexp matching path names for files Dropbox ignores
-	// See https://www.dropbox.com/en/help/145 - Ignored files
-	ignoredFiles = regexp.MustCompile(`(?i)(^|/)(desktop\.ini|thumbs\.db|\.ds_store|icon\r|\.dropbox|\.dropbox.attr)$`)
+	uploadChunkSize    = fs.SizeSuffix(48 * 1024 * 1024)
+	maxUploadChunkSize = fs.SizeSuffix(150 * 1024 * 1024)
 )

 // Register with Fs
@@ -109,58 +106,34 @@ func init() {
 		Name:        "dropbox",
 		Description: "Dropbox",
 		NewFs:       NewFs,
-		Config: func(name string, m configmap.Mapper) {
-			err := oauthutil.ConfigNoOffline("dropbox", name, m, dropboxConfig)
+		Config: func(name string) {
+			err := oauthutil.ConfigNoOffline("dropbox", name, dropboxConfig)
 			if err != nil {
 				log.Fatalf("Failed to configure token: %v", err)
 			}
 		},
 		Options: []fs.Option{{
 			Name: config.ConfigClientID,
-			Help: "Dropbox App Client Id\nLeave blank normally.",
+			Help: "Dropbox App Client Id - leave blank normally.",
 		}, {
 			Name: config.ConfigClientSecret,
-			Help: "Dropbox App Client Secret\nLeave blank normally.",
-		}, {
-			Name: "chunk_size",
-			Help: fmt.Sprintf(`Upload chunk size. (< %v).
-
-Any files larger than this will be uploaded in chunks of this size.
-
-Note that chunks are buffered in memory (one at a time) so rclone can
-deal with retries.  Setting this larger will increase the speed
-slightly (at most 10%% for 128MB in tests) at the cost of using more
-memory.  It can be set smaller if you are tight on memory.`, maxChunkSize),
-			Default:  defaultChunkSize,
-			Advanced: true,
-		}, {
-			Name:     "impersonate",
-			Help:     "Impersonate this user when using a business account.",
-			Default:  "",
-			Advanced: true,
+			Help: "Dropbox App Client Secret - leave blank normally.",
 		}},
 	})
-}
-
-// Options defines the configuration for this backend
-type Options struct {
-	ChunkSize   fs.SizeSuffix `config:"chunk_size"`
-	Impersonate string        `config:"impersonate"`
+	flags.VarP(&uploadChunkSize, "dropbox-chunk-size", "", fmt.Sprintf("Upload chunk size. Max %v.", maxUploadChunkSize))
 }

 // Fs represents a remote dropbox 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
 	srv            files.Client   // the connection to the dropbox server
 	sharing        sharing.Client // as above, but for generating sharing links
 	users          users.Client   // as above, but for accessing user information
-	team           team.Client    // for the Teams API
 	slashRoot      string         // root with "/" prefix, lowercase
 	slashRootSlash string         // root with "/" prefix and postfix, lowercase
-	pacer          *fs.Pacer      // To pace the API calls
+	pacer          *pacer.Pacer   // To pace the API calls
 	ns             string         // The namespace we are using or "" for none
 }

@@ -204,59 +177,23 @@ func shouldRetry(err error) (bool, error) {
 		return false, err
 	}
 	baseErrString := errors.Cause(err).Error()
-	// handle any official Retry-After header from Dropbox's SDK first
-	switch e := err.(type) {
-	case auth.RateLimitAPIError:
-		if e.RateLimitError.RetryAfter > 0 {
-			fs.Debugf(baseErrString, "Too many requests or write operations. Trying again in %d seconds.", e.RateLimitError.RetryAfter)
-			err = pacer.RetryAfterError(err, time.Duration(e.RateLimitError.RetryAfter)*time.Second)
-		}
-		return true, err
-	}
-	// Keep old behavior for backward compatibility
-	if strings.Contains(baseErrString, "too_many_write_operations") || strings.Contains(baseErrString, "too_many_requests") || baseErrString == "" {
+	// FIXME there is probably a better way of doing this!
+	if strings.Contains(baseErrString, "too_many_write_operations") || strings.Contains(baseErrString, "too_many_requests") {
 		return true, err
 	}
 	return fserrors.ShouldRetry(err), err
 }

-func checkUploadChunkSize(cs fs.SizeSuffix) error {
-	const minChunkSize = fs.Byte
-	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
-	}
-	if cs > maxChunkSize {
-		return errors.Errorf("%s is greater than %s", cs, maxChunkSize)
-	}
-	return nil
-}
-
-func (f *Fs) setUploadChunkSize(cs fs.SizeSuffix) (old fs.SizeSuffix, err error) {
-	err = checkUploadChunkSize(cs)
-	if err == nil {
-		old, f.opt.ChunkSize = f.opt.ChunkSize, cs
-	}
-	return
-}
-
-// NewFs constructs an Fs from the path, container:path
-func NewFs(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
-	}
-	err = checkUploadChunkSize(opt.ChunkSize)
-	if err != nil {
-		return nil, errors.Wrap(err, "dropbox: chunk size")
+// NewFs contstructs an Fs from the path, container:path
+func NewFs(name, root string) (fs.Fs, error) {
+	if uploadChunkSize > maxUploadChunkSize {
+		return nil, errors.Errorf("chunk size too big, must be < %v", maxUploadChunkSize)
 	}

 	// Convert the old token if it exists.  The old token was just
 	// just a string, the new one is a JSON blob
-	oldToken, ok := m.Get(config.ConfigToken)
-	oldToken = strings.TrimSpace(oldToken)
-	if ok && oldToken != "" && oldToken[0] != '{' {
+	oldToken := strings.TrimSpace(config.FileGet(name, config.ConfigToken))
+	if 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)
 		err := config.SetValueAndSave(name, config.ConfigToken, newToken)
@@ -265,44 +202,20 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 		}
 	}

-	oAuthClient, _, err := oauthutil.NewClient(name, m, dropboxConfig)
+	oAuthClient, _, err := oauthutil.NewClient(name, dropboxConfig)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to configure dropbox")
 	}

 	f := &Fs{
 		name:  name,
-		opt:   *opt,
-		pacer: fs.NewPacer(pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
+		pacer: pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
 	}
 	config := dropbox.Config{
 		LogLevel:        dropbox.LogOff, // logging in the SDK: LogOff, LogDebug, LogInfo
 		Client:          oAuthClient,    // maybe???
 		HeaderGenerator: f.headerGenerator,
 	}
-
-	// NOTE: needs to be created pre-impersonation so we can look up the impersonated user
-	f.team = team.New(config)
-
-	if opt.Impersonate != "" {
-
-		user := team.UserSelectorArg{
-			Email: opt.Impersonate,
-		}
-		user.Tag = "email"
-
-		members := []*team.UserSelectorArg{&user}
-		args := team.NewMembersGetInfoArgs(members)
-
-		memberIds, err := f.team.MembersGetInfo(args)
-
-		if err != nil {
-			return nil, errors.Wrapf(err, "invalid dropbox team member: %q", opt.Impersonate)
-		}
-
-		config.AsMemberID = memberIds[0].MemberInfo.Profile.MemberProfile.TeamMemberId
-	}
-
 	f.srv = files.New(config)
 	f.sharing = sharing.New(config)
 	f.users = users.New(config)
@@ -998,7 +911,7 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 // unknown (i.e. -1) or smaller than uploadChunkSize, the method incurs an
 // avoidable request to the Dropbox API that does not carry payload.
 func (o *Object) uploadChunked(in0 io.Reader, commitInfo *files.CommitInfo, size int64) (entry *files.FileMetadata, err error) {
-	chunkSize := int64(o.fs.opt.ChunkSize)
+	chunkSize := int64(uploadChunkSize)
 	chunks := 0
 	if size != -1 {
 		chunks = int(size/chunkSize) + 1
@@ -1113,7 +1026,7 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 	size := src.Size()
 	var err error
 	var entry *files.FileMetadata
-	if size > int64(o.fs.opt.ChunkSize) || size == -1 {
+	if size > int64(uploadChunkSize) || size == -1 {
 		entry, err = o.uploadChunked(in, commitInfo, size)
 	} else {
 		err = o.fs.pacer.CallNoRetry(func() (bool, error) {
--- a/backend/dropbox/dropbox_test.go
+++ b/backend/dropbox/dropbox_test.go
@@ -1,10 +1,10 @@
 // Test Dropbox filesystem interface
-package dropbox
+package dropbox_test

 import (
 	"testing"

-	"github.com/ncw/rclone/fs"
+	"github.com/ncw/rclone/backend/dropbox"
 	"github.com/ncw/rclone/fstest/fstests"
 )

@@ -12,15 +12,6 @@ import (
 func TestIntegration(t *testing.T) {
 	fstests.Run(t, &fstests.Opt{
 		RemoteName: "TestDropbox:",
-		NilObject:  (*Object)(nil),
-		ChunkedUpload: fstests.ChunkedUploadConfig{
-			MaxChunkSize: maxChunkSize,
-		},
+		NilObject:  (*dropbox.Object)(nil),
 	})
 }
-
-func (f *Fs) SetUploadChunkSize(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadChunkSize(cs)
-}
-
-var _ fstests.SetUploadChunkSizer = (*Fs)(nil)
--- a/backend/ftp/ftp.go
+++ b/backend/ftp/ftp.go
@@ -4,18 +4,18 @@ package ftp
 import (
 	"io"
 	"net/textproto"
+	"net/url"
 	"os"
 	"path"
+	"strings"
 	"sync"
 	"time"

 	"github.com/jlaffaye/ftp"
 	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config"
 	"github.com/ncw/rclone/fs/config/obscure"
 	"github.com/ncw/rclone/fs/hash"
-	"github.com/ncw/rclone/lib/pacer"
 	"github.com/ncw/rclone/lib/readers"
 	"github.com/pkg/errors"
 )
@@ -30,46 +30,33 @@ func init() {
 			{
 				Name:     "host",
 				Help:     "FTP host to connect to",
-				Required: true,
+				Optional: false,
 				Examples: []fs.OptionExample{{
 					Value: "ftp.example.com",
 					Help:  "Connect to ftp.example.com",
 				}},
 			}, {
-				Name: "user",
-				Help: "FTP username, leave blank for current username, " + os.Getenv("USER"),
+				Name:     "user",
+				Help:     "FTP username, leave blank for current username, " + os.Getenv("USER"),
+				Optional: true,
 			}, {
-				Name: "port",
-				Help: "FTP port, leave blank to use default (21)",
+				Name:     "port",
+				Help:     "FTP port, leave blank to use default (21) ",
+				Optional: true,
 			}, {
 				Name:       "pass",
 				Help:       "FTP password",
 				IsPassword: true,
-				Required:   true,
-			}, {
-				Name:     "concurrency",
-				Help:     "Maximum number of FTP simultaneous connections, 0 for unlimited",
-				Default:  0,
-				Advanced: true,
+				Optional:   false,
 			},
 		},
 	})
 }

-// Options defines the configuration for this backend
-type Options struct {
-	Host        string `config:"host"`
-	User        string `config:"user"`
-	Pass        string `config:"pass"`
-	Port        string `config:"port"`
-	Concurrency int    `config:"concurrency"`
-}
-
 // Fs represents a remote FTP server
 type Fs struct {
 	name     string       // name of this remote
 	root     string       // the path we are working on if any
-	opt      Options      // parsed options
 	features *fs.Features // optional features
 	url      string
 	user     string
@@ -77,7 +64,6 @@ type Fs struct {
 	dialAddr string
 	poolMu   sync.Mutex
 	pool     []*ftp.ServerConn
-	tokens   *pacer.TokenDispenser
 }

 // Object describes an FTP file
@@ -136,9 +122,6 @@ func (f *Fs) ftpConnection() (*ftp.ServerConn, error) {

 // Get an FTP connection from the pool, or open a new one
 func (f *Fs) getFtpConnection() (c *ftp.ServerConn, err error) {
-	if f.opt.Concurrency > 0 {
-		f.tokens.Get()
-	}
 	f.poolMu.Lock()
 	if len(f.pool) > 0 {
 		c = f.pool[0]
@@ -158,9 +141,6 @@ func (f *Fs) getFtpConnection() (c *ftp.ServerConn, err error) {
 // if err is not nil then it checks the connection is alive using a
 // NOOP request
 func (f *Fs) putFtpConnection(pc **ftp.ServerConn, err error) {
-	if f.opt.Concurrency > 0 {
-		defer f.tokens.Put()
-	}
 	c := *pc
 	*pc = nil
 	if err != nil {
@@ -180,39 +160,56 @@ func (f *Fs) putFtpConnection(pc **ftp.ServerConn, err error) {
 	f.poolMu.Unlock()
 }

-// NewFs constructs an Fs from the path, container:path
-func NewFs(name, root string, m configmap.Mapper) (ff fs.Fs, err error) {
+// NewFs contstructs an Fs from the path, container:path
+func NewFs(name, root string) (ff fs.Fs, err error) {
 	// defer fs.Trace(nil, "name=%q, root=%q", name, root)("fs=%v, err=%v", &ff, &err)
-	// Parse config into Options struct
-	opt := new(Options)
-	err = configstruct.Set(m, opt)
-	if err != nil {
-		return nil, err
+	// FIXME Convert the old scheme used for the first beta - remove after release
+	if ftpURL := config.FileGet(name, "url"); ftpURL != "" {
+		fs.Infof(name, "Converting old configuration")
+		u, err := url.Parse(ftpURL)
+		if err != nil {
+			return nil, errors.Wrapf(err, "Failed to parse old url %q", ftpURL)
+		}
+		parts := strings.Split(u.Host, ":")
+		config.FileSet(name, "host", parts[0])
+		if len(parts) > 1 {
+			config.FileSet(name, "port", parts[1])
+		}
+		config.FileSet(name, "host", u.Host)
+		config.FileSet(name, "user", config.FileGet(name, "username"))
+		config.FileSet(name, "pass", config.FileGet(name, "password"))
+		config.FileDeleteKey(name, "username")
+		config.FileDeleteKey(name, "password")
+		config.FileDeleteKey(name, "url")
+		config.SaveConfig()
+		if u.Path != "" && u.Path != "/" {
+			fs.Errorf(name, "Path %q in FTP URL no longer supported - put it on the end of the remote %s:%s", u.Path, name, u.Path)
+		}
 	}
-	pass, err := obscure.Reveal(opt.Pass)
+	host := config.FileGet(name, "host")
+	user := config.FileGet(name, "user")
+	pass := config.FileGet(name, "pass")
+	port := config.FileGet(name, "port")
+	pass, err = obscure.Reveal(pass)
 	if err != nil {
 		return nil, errors.Wrap(err, "NewFS decrypt password")
 	}
-	user := opt.User
 	if user == "" {
 		user = os.Getenv("USER")
 	}
-	port := opt.Port
 	if port == "" {
 		port = "21"
 	}

-	dialAddr := opt.Host + ":" + port
+	dialAddr := host + ":" + port
 	u := "ftp://" + path.Join(dialAddr+"/", root)
 	f := &Fs{
 		name:     name,
 		root:     root,
-		opt:      *opt,
 		url:      u,
 		user:     user,
 		pass:     pass,
 		dialAddr: dialAddr,
-		tokens:   pacer.NewTokenDispenser(opt.Concurrency),
 	}
 	f.features = (&fs.Features{
 		CanHaveEmptyDirectories: true,
@@ -661,21 +658,7 @@ func (f *ftpReadCloser) Read(p []byte) (n int, err error) {

 // Close the FTP reader and return the connection to the pool
 func (f *ftpReadCloser) Close() error {
-	var err error
-	errchan := make(chan error, 1)
-	go func() {
-		errchan <- f.rc.Close()
-	}()
-	// Wait for Close for up to 60 seconds
-	timer := time.NewTimer(60 * time.Second)
-	select {
-	case err = <-errchan:
-		timer.Stop()
-	case <-timer.C:
-		// if timer fired assume no error but connection dead
-		fs.Errorf(f.f, "Timeout when waiting for connection Close")
-		return nil
-	}
+	err := f.rc.Close()
 	// if errors while reading or closing, dump the connection
 	if err != nil || f.err != nil {
 		_ = f.c.Quit()
@@ -733,11 +716,6 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 	path := path.Join(o.fs.root, o.remote)
 	// remove the file if upload failed
 	remove := func() {
-		// Give the FTP server a chance to get its internal state in order after the error.
-		// The error may have been local in which case we closed the connection.  The server
-		// may still be dealing with it for a moment. A sleep isn't ideal but I haven't been
-		// able to think of a better method to find out if the server has finished - ncw
-		time.Sleep(1 * time.Second)
 		removeErr := o.Remove()
 		if removeErr != nil {
 			fs.Debugf(o, "Failed to remove: %v", removeErr)
@@ -751,7 +729,7 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 	}
 	err = c.Stor(path, in)
 	if err != nil {
-		_ = c.Quit() // toss this connection to avoid sync errors
+		_ = c.Quit()
 		remove()
 		return errors.Wrap(err, "update stor")
 	}
--- a/backend/googlecloudstorage/googlecloudstorage.go
+++ b/backend/googlecloudstorage/googlecloudstorage.go
@@ -1,7 +1,4 @@
 // Package googlecloudstorage provides an interface to Google Cloud Storage
-
-// +build go1.9
-
 package googlecloudstorage

 /*
@@ -16,7 +13,6 @@ FIXME Patch/Delete/Get isn't working with files with spaces in - giving 404 erro
 */

 import (
-	"context"
 	"encoding/base64"
 	"encoding/hex"
 	"fmt"
@@ -33,8 +29,7 @@ import (

 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/config"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config/flags"
 	"github.com/ncw/rclone/fs/config/obscure"
 	"github.com/ncw/rclone/fs/fserrors"
 	"github.com/ncw/rclone/fs/fshttp"
@@ -46,8 +41,6 @@ import (
 	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/google"
 	"google.golang.org/api/googleapi"
-
-	// NOTE: This API is deprecated
 	storage "google.golang.org/api/storage/v1"
 )

@@ -62,6 +55,8 @@ const (
 )

 var (
+	gcsLocation     = flags.StringP("gcs-location", "", "", "Default location for buckets (us|eu|asia|us-central1|us-east1|us-east4|us-west1|asia-east1|asia-noetheast1|asia-southeast1|australia-southeast1|europe-west1|europe-west2).")
+	gcsStorageClass = flags.StringP("gcs-storage-class", "", "", "Default storage class for buckets (MULTI_REGIONAL|REGIONAL|STANDARD|NEARLINE|COLDLINE|DURABLE_REDUCED_AVAILABILITY).")
 	// Description of how to auth for this app
 	storageConfig = &oauth2.Config{
 		Scopes:       []string{storage.DevstorageFullControlScope},
@@ -76,36 +71,29 @@ var (
 func init() {
 	fs.Register(&fs.RegInfo{
 		Name:        "google cloud storage",
-		Prefix:      "gcs",
 		Description: "Google Cloud Storage (this is not Google Drive)",
 		NewFs:       NewFs,
-		Config: func(name string, m configmap.Mapper) {
-			saFile, _ := m.Get("service_account_file")
-			saCreds, _ := m.Get("service_account_credentials")
-			if saFile != "" || saCreds != "" {
+		Config: func(name string) {
+			if config.FileGet(name, "service_account_file") != "" {
 				return
 			}
-			err := oauthutil.Config("google cloud storage", name, m, storageConfig)
+			err := oauthutil.Config("google cloud storage", name, storageConfig)
 			if err != nil {
 				log.Fatalf("Failed to configure token: %v", err)
 			}
 		},
 		Options: []fs.Option{{
 			Name: config.ConfigClientID,
-			Help: "Google Application Client Id\nLeave blank normally.",
+			Help: "Google Application Client Id - leave blank normally.",
 		}, {
 			Name: config.ConfigClientSecret,
-			Help: "Google Application Client Secret\nLeave blank normally.",
+			Help: "Google Application Client Secret - leave blank normally.",
 		}, {
 			Name: "project_number",
-			Help: "Project number.\nOptional - needed only for list/create/delete buckets - see your developer console.",
+			Help: "Project number optional - needed only for list/create/delete buckets - see your developer console.",
 		}, {
 			Name: "service_account_file",
-			Help: "Service Account Credentials JSON file path\nLeave blank normally.\nNeeded only if you want use SA instead of interactive login.",
-		}, {
-			Name: "service_account_credentials",
-			Help: "Service Account Credentials JSON blob\nLeave blank normally.\nNeeded only if you want use SA instead of interactive login.",
-			Hide: fs.OptionHideBoth,
+			Help: "Service Account Credentials JSON file path - needed only if you want use SA instead of interactive login.",
 		}, {
 			Name: "object_acl",
 			Help: "Access Control List for new objects.",
@@ -147,22 +135,6 @@ func init() {
 				Value: "publicReadWrite",
 				Help:  "Project team owners get OWNER access, and all Users get WRITER access.",
 			}},
-		}, {
-			Name: "bucket_policy_only",
-			Help: `Access checks should use bucket-level IAM policies.
-
-If you want to upload objects to a bucket with Bucket Policy Only set
-then you will need to set this.
-
-When it is set, rclone:
-
- ignores ACLs set on buckets
- ignores ACLs set on objects
- creates buckets with Bucket Policy Only set
-
-Docs: https://cloud.google.com/storage/docs/bucket-policy-only
-`,
-			Default: false,
 		}, {
 			Name: "location",
 			Help: "Location for the newly created buckets.",
@@ -181,36 +153,21 @@ Docs: https://cloud.google.com/storage/docs/bucket-policy-only
 			}, {
 				Value: "asia-east1",
 				Help:  "Taiwan.",
-			}, {
-				Value: "asia-east2",
-				Help:  "Hong Kong.",
 			}, {
 				Value: "asia-northeast1",
 				Help:  "Tokyo.",
-			}, {
-				Value: "asia-south1",
-				Help:  "Mumbai.",
 			}, {
 				Value: "asia-southeast1",
 				Help:  "Singapore.",
 			}, {
 				Value: "australia-southeast1",
 				Help:  "Sydney.",
-			}, {
-				Value: "europe-north1",
-				Help:  "Finland.",
 			}, {
 				Value: "europe-west1",
 				Help:  "Belgium.",
 			}, {
 				Value: "europe-west2",
 				Help:  "London.",
-			}, {
-				Value: "europe-west3",
-				Help:  "Frankfurt.",
-			}, {
-				Value: "europe-west4",
-				Help:  "Netherlands.",
 			}, {
 				Value: "us-central1",
 				Help:  "Iowa.",
@@ -223,9 +180,6 @@ Docs: https://cloud.google.com/storage/docs/bucket-policy-only
 			}, {
 				Value: "us-west1",
 				Help:  "Oregon.",
-			}, {
-				Value: "us-west2",
-				Help:  "California.",
 			}},
 		}, {
 			Name: "storage_class",
@@ -253,30 +207,22 @@ Docs: https://cloud.google.com/storage/docs/bucket-policy-only
 	})
 }

-// Options defines the configuration for this backend
-type Options struct {
-	ProjectNumber             string `config:"project_number"`
-	ServiceAccountFile        string `config:"service_account_file"`
-	ServiceAccountCredentials string `config:"service_account_credentials"`
-	ObjectACL                 string `config:"object_acl"`
-	BucketACL                 string `config:"bucket_acl"`
-	BucketPolicyOnly          bool   `config:"bucket_policy_only"`
-	Location                  string `config:"location"`
-	StorageClass              string `config:"storage_class"`
-}
-
 // Fs represents a remote storage server
 type Fs struct {
-	name       string           // name of this remote
-	root       string           // the path we are working on if any
-	opt        Options          // parsed options
-	features   *fs.Features     // optional features
-	svc        *storage.Service // the connection to the storage server
-	client     *http.Client     // authorized client
-	bucket     string           // the bucket we are working on
-	bucketOKMu sync.Mutex       // mutex to protect bucket OK
-	bucketOK   bool             // true if we have created the bucket
-	pacer      *fs.Pacer        // To pace the API calls
+	name          string           // name of this remote
+	root          string           // the path we are working on if any
+	features      *fs.Features     // optional features
+	svc           *storage.Service // the connection to the storage server
+	client        *http.Client     // authorized client
+	bucket        string           // the bucket we are working on
+	bucketOKMu    sync.Mutex       // mutex to protect bucket OK
+	bucketOK      bool             // true if we have created the bucket
+	projectNumber string           // used for finding buckets
+	objectACL     string           // used when creating new objects
+	bucketACL     string           // used when creating new buckets
+	location      string           // location of new buckets
+	storageClass  string           // storage class of new buckets
+	pacer         *pacer.Pacer     // To pace the API calls
 }

 // Object describes a storage object
@@ -320,7 +266,7 @@ func (f *Fs) Features() *fs.Features {
 	return f.features
 }

-// shouldRetry determines whether a given err rates being retried
+// shouldRetry determines whehter a given err rates being retried
 func shouldRetry(err error) (again bool, errOut error) {
 	again = false
 	if err != nil {
@@ -368,44 +314,30 @@ func getServiceAccountClient(credentialsData []byte) (*http.Client, error) {
 	return oauth2.NewClient(ctxWithSpecialClient, conf.TokenSource(ctxWithSpecialClient)), nil
 }

-// NewFs constructs an Fs from the path, bucket:path
-func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
+// NewFs contstructs an Fs from the path, bucket:path
+func NewFs(name, root string) (fs.Fs, error) {
 	var oAuthClient *http.Client
-
-	// Parse config into Options struct
-	opt := new(Options)
-	err := configstruct.Set(m, opt)
-	if err != nil {
-		return nil, err
-	}
-	if opt.ObjectACL == "" {
-		opt.ObjectACL = "private"
-	}
-	if opt.BucketACL == "" {
-		opt.BucketACL = "private"
-	}
+	var err error

 	// try loading service account credentials from env variable, then from a file
-	if opt.ServiceAccountCredentials == "" && opt.ServiceAccountFile != "" {
-		loadedCreds, err := ioutil.ReadFile(os.ExpandEnv(opt.ServiceAccountFile))
+	serviceAccountCreds := []byte(config.FileGet(name, "service_account_credentials"))
+	serviceAccountPath := config.FileGet(name, "service_account_file")
+	if len(serviceAccountCreds) == 0 && serviceAccountPath != "" {
+		loadedCreds, err := ioutil.ReadFile(os.ExpandEnv(serviceAccountPath))
 		if err != nil {
 			return nil, errors.Wrap(err, "error opening service account credentials file")
 		}
-		opt.ServiceAccountCredentials = string(loadedCreds)
+		serviceAccountCreds = loadedCreds
 	}
-	if opt.ServiceAccountCredentials != "" {
-		oAuthClient, err = getServiceAccountClient([]byte(opt.ServiceAccountCredentials))
+	if len(serviceAccountCreds) > 0 {
+		oAuthClient, err = getServiceAccountClient(serviceAccountCreds)
 		if err != nil {
 			return nil, errors.Wrap(err, "failed configuring Google Cloud Storage Service Account")
 		}
 	} else {
-		oAuthClient, _, err = oauthutil.NewClient(name, m, storageConfig)
+		oAuthClient, _, err = oauthutil.NewClient(name, storageConfig)
 		if err != nil {
-			ctx := context.Background()
-			oAuthClient, err = google.DefaultClient(ctx, storage.DevstorageFullControlScope)
-			if err != nil {
-				return nil, errors.Wrap(err, "failed to configure Google Cloud Storage")
-			}
+			return nil, errors.Wrap(err, "failed to configure Google Cloud Storage")
 		}
 	}

@@ -415,17 +347,33 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	}

 	f := &Fs{
-		name:   name,
-		bucket: bucket,
-		root:   directory,
-		opt:    *opt,
-		pacer:  fs.NewPacer(pacer.NewGoogleDrive(pacer.MinSleep(minSleep))),
+		name:          name,
+		bucket:        bucket,
+		root:          directory,
+		projectNumber: config.FileGet(name, "project_number"),
+		objectACL:     config.FileGet(name, "object_acl"),
+		bucketACL:     config.FileGet(name, "bucket_acl"),
+		location:      config.FileGet(name, "location"),
+		storageClass:  config.FileGet(name, "storage_class"),
+		pacer:         pacer.New().SetMinSleep(minSleep).SetPacer(pacer.GoogleDrivePacer),
 	}
 	f.features = (&fs.Features{
 		ReadMimeType:  true,
 		WriteMimeType: true,
 		BucketBased:   true,
 	}).Fill(f)
+	if f.objectACL == "" {
+		f.objectACL = "private"
+	}
+	if f.bucketACL == "" {
+		f.bucketACL = "private"
+	}
+	if *gcsLocation != "" {
+		f.location = *gcsLocation
+	}
+	if *gcsStorageClass != "" {
+		f.storageClass = *gcsStorageClass
+	}

 	// Create a new authorized Drive client.
 	f.client = oAuthClient
@@ -602,10 +550,10 @@ func (f *Fs) listBuckets(dir string) (entries fs.DirEntries, err error) {
 	if dir != "" {
 		return nil, fs.ErrorListBucketRequired
 	}
-	if f.opt.ProjectNumber == "" {
+	if f.projectNumber == "" {
 		return nil, errors.New("can't list buckets without project number")
 	}
-	listBuckets := f.svc.Buckets.List(f.opt.ProjectNumber).MaxResults(listChunks)
+	listBuckets := f.svc.Buckets.List(f.projectNumber).MaxResults(listChunks)
 	for {
 		var buckets *storage.Buckets
 		err = f.pacer.Call(func() (bool, error) {
@@ -724,28 +672,17 @@ func (f *Fs) Mkdir(dir string) (err error) {
 		return errors.Wrap(err, "failed to get bucket")
 	}

-	if f.opt.ProjectNumber == "" {
+	if f.projectNumber == "" {
 		return errors.New("can't make bucket without project number")
 	}

 	bucket := storage.Bucket{
 		Name:         f.bucket,
-		Location:     f.opt.Location,
-		StorageClass: f.opt.StorageClass,
-	}
-	if f.opt.BucketPolicyOnly {
-		bucket.IamConfiguration = &storage.BucketIamConfiguration{
-			BucketPolicyOnly: &storage.BucketIamConfigurationBucketPolicyOnly{
-				Enabled: true,
-			},
-		}
+		Location:     f.location,
+		StorageClass: f.storageClass,
 	}
 	err = f.pacer.Call(func() (bool, error) {
-		insertBucket := f.svc.Buckets.Insert(f.opt.ProjectNumber, &bucket)
-		if !f.opt.BucketPolicyOnly {
-			insertBucket.PredefinedAcl(f.opt.BucketACL)
-		}
-		_, err = insertBucket.Do()
+		_, err = f.svc.Buckets.Insert(f.projectNumber, &bucket).PredefinedAcl(f.bucketACL).Do()
 		return shouldRetry(err)
 	})
 	if err == nil {
@@ -1011,11 +948,7 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 	}
 	var newObject *storage.Object
 	err = o.fs.pacer.CallNoRetry(func() (bool, error) {
-		insertObject := o.fs.svc.Objects.Insert(o.fs.bucket, &object).Media(in, googleapi.ContentType("")).Name(object.Name)
-		if !o.fs.opt.BucketPolicyOnly {
-			insertObject.PredefinedAcl(o.fs.opt.ObjectACL)
-		}
-		newObject, err = insertObject.Do()
+		newObject, err = o.fs.svc.Objects.Insert(o.fs.bucket, &object).Media(in, googleapi.ContentType("")).Name(object.Name).PredefinedAcl(o.fs.objectACL).Do()
 		return shouldRetry(err)
 	})
 	if err != nil {
--- a/backend/googlecloudstorage/googlecloudstorage_test.go
+++ b/backend/googlecloudstorage/googlecloudstorage_test.go
@@ -1,7 +1,4 @@
 // Test GoogleCloudStorage filesystem interface
-
-// +build go1.9
-
 package googlecloudstorage_test

 import (
--- a/backend/googlecloudstorage/googlecloudstorage_unsupported.go
+++ b/backend/googlecloudstorage/googlecloudstorage_unsupported.go
@@ -1,6 +0,0 @@
-// Build for unsupported platforms to stop go complaining
-// about "no buildable Go source files "
-
-// +build !go1.9
-
-package googlecloudstorage
--- a/backend/http/http.go
+++ b/backend/http/http.go
@@ -6,7 +6,6 @@ package http

 import (
 	"io"
-	"mime"
 	"net/http"
 	"net/url"
 	"path"
@@ -15,8 +14,7 @@ import (
 	"time"

 	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config"
 	"github.com/ncw/rclone/fs/fshttp"
 	"github.com/ncw/rclone/fs/hash"
 	"github.com/ncw/rclone/lib/rest"
@@ -37,47 +35,21 @@ func init() {
 		Options: []fs.Option{{
 			Name:     "url",
 			Help:     "URL of http host to connect to",
-			Required: true,
+			Optional: false,
 			Examples: []fs.OptionExample{{
 				Value: "https://example.com",
 				Help:  "Connect to example.com",
-			}, {
-				Value: "https://user:pass@example.com",
-				Help:  "Connect to example.com using a username and password",
 			}},
-		}, {
-			Name: "no_slash",
-			Help: `Set this if the site doesn't end directories with /
-
-Use this if your target website does not use / on the end of
-directories.
-
-A / on the end of a path is how rclone normally tells the difference
-between files and directories.  If this flag is set, then rclone will
-treat all files with Content-Type: text/html as directories and read
-URLs from them rather than downloading them.
-
-Note that this may cause rclone to confuse genuine HTML files with
-directories.`,
-			Default:  false,
-			Advanced: true,
 		}},
 	}
 	fs.Register(fsi)
 }

-// Options defines the configuration for this backend
-type Options struct {
-	Endpoint string `config:"url"`
-	NoSlash  bool   `config:"no_slash"`
-}
-
 // Fs stores the interface to the remote HTTP files
 type Fs struct {
 	name        string
 	root        string
 	features    *fs.Features // optional features
-	opt         Options      // options for this backend
 	endpoint    *url.URL
 	endpointURL string // endpoint as a string
 	httpClient  *http.Client
@@ -106,20 +78,14 @@ func statusError(res *http.Response, err error) error {

 // NewFs creates a new Fs object from the name and root. It connects to
 // the host specified in the config file.
-func NewFs(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
-	}
-
-	if !strings.HasSuffix(opt.Endpoint, "/") {
-		opt.Endpoint += "/"
+func NewFs(name, root string) (fs.Fs, error) {
+	endpoint := config.FileGet(name, "url")
+	if !strings.HasSuffix(endpoint, "/") {
+		endpoint += "/"
 	}

 	// Parse the endpoint and stick the root onto it
-	base, err := url.Parse(opt.Endpoint)
+	base, err := url.Parse(endpoint)
 	if err != nil {
 		return nil, err
 	}
@@ -164,7 +130,6 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	f := &Fs{
 		name:        name,
 		root:        root,
-		opt:         *opt,
 		httpClient:  client,
 		endpoint:    u,
 		endpointURL: u.String(),
@@ -214,7 +179,7 @@ func (f *Fs) NewObject(remote string) (fs.Object, error) {
 	}
 	err := o.stat()
 	if err != nil {
-		return nil, err
+		return nil, errors.Wrap(err, "Stat failed")
 	}
 	return o, nil
 }
@@ -269,7 +234,7 @@ func parseName(base *url.URL, name string) (string, error) {
 	}
 	// calculate the name relative to the base
 	name = u.Path[len(base.Path):]
-	// mustn't be empty
+	// musn't be empty
 	if name == "" {
 		return "", errNameIsEmpty
 	}
@@ -288,20 +253,14 @@ func parse(base *url.URL, in io.Reader) (names []string, err error) {
 	if err != nil {
 		return nil, err
 	}
-	var (
-		walk func(*html.Node)
-		seen = make(map[string]struct{})
-	)
+	var walk func(*html.Node)
 	walk = func(n *html.Node) {
 		if n.Type == html.ElementNode && n.Data == "a" {
 			for _, a := range n.Attr {
 				if a.Key == "href" {
 					name, err := parseName(base, a.Val)
 					if err == nil {
-						if _, found := seen[name]; !found {
-							names = append(names, name)
-							seen[name] = struct{}{}
-						}
+						names = append(names, name)
 					}
 					break
 				}
@@ -326,16 +285,14 @@ func (f *Fs) readDir(dir string) (names []string, err error) {
 		return nil, errors.Errorf("internal error: readDir URL %q didn't end in /", URL)
 	}
 	res, err := f.httpClient.Get(URL)
-	if err == nil {
-		defer fs.CheckClose(res.Body, &err)
-		if res.StatusCode == http.StatusNotFound {
-			return nil, fs.ErrorDirNotFound
-		}
+	if err == nil && res.StatusCode == http.StatusNotFound {
+		return nil, fs.ErrorDirNotFound
 	}
 	err = statusError(res, err)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to readDir")
 	}
+	defer fs.CheckClose(res.Body, &err)

 	contentType := strings.SplitN(res.Header.Get("Content-Type"), ";", 2)[0]
 	switch contentType {
@@ -379,16 +336,11 @@ func (f *Fs) List(dir string) (entries fs.DirEntries, err error) {
 				fs:     f,
 				remote: remote,
 			}
-			switch err = file.stat(); err {
-			case nil:
-				entries = append(entries, file)
-			case fs.ErrorNotAFile:
-				// ...found a directory not a file
-				dir := fs.NewDir(remote, timeUnset)
-				entries = append(entries, dir)
-			default:
+			if err = file.stat(); err != nil {
 				fs.Debugf(remote, "skipping because of error: %v", err)
+				continue
 			}
+			entries = append(entries, file)
 		}
 	}
 	return entries, nil
@@ -450,9 +402,6 @@ func (o *Object) url() string {
 func (o *Object) stat() error {
 	url := o.url()
 	res, err := o.fs.httpClient.Head(url)
-	if err == nil && res.StatusCode == http.StatusNotFound {
-		return fs.ErrorObjectNotFound
-	}
 	err = statusError(res, err)
 	if err != nil {
 		return errors.Wrap(err, "failed to stat")
@@ -464,16 +413,6 @@ func (o *Object) stat() error {
 	o.size = parseInt64(res.Header.Get("Content-Length"), -1)
 	o.modTime = t
 	o.contentType = res.Header.Get("Content-Type")
-	// If NoSlash is set then check ContentType to see if it is a directory
-	if o.fs.opt.NoSlash {
-		mediaType, _, err := mime.ParseMediaType(o.contentType)
-		if err != nil {
-			return errors.Wrapf(err, "failed to parse Content-Type: %q", o.contentType)
-		}
-		if mediaType == "text/html" {
-			return fs.ErrorNotAFile
-		}
-	}
 	return nil
 }

--- a/backend/http/http_internal_test.go
+++ b/backend/http/http_internal_test.go
@@ -16,7 +16,6 @@ import (

 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/config"
-	"github.com/ncw/rclone/fs/config/configmap"
 	"github.com/ncw/rclone/fstest"
 	"github.com/ncw/rclone/lib/rest"
 	"github.com/stretchr/testify/assert"
@@ -30,7 +29,7 @@ var (
 )

 // prepareServer the test server and return a function to tidy it up afterwards
-func prepareServer(t *testing.T) (configmap.Simple, func()) {
+func prepareServer(t *testing.T) func() {
 	// file server for test/files
 	fileServer := http.FileServer(http.Dir(filesPath))

@@ -42,30 +41,25 @@ func prepareServer(t *testing.T) (configmap.Simple, func()) {
 	// fs.Config.LogLevel = fs.LogLevelDebug
 	// fs.Config.DumpHeaders = true
 	// fs.Config.DumpBodies = true
-	// config.FileSet(remoteName, "type", "http")
-	// config.FileSet(remoteName, "url", ts.URL)
-
-	m := configmap.Simple{
-		"type": "http",
-		"url":  ts.URL,
-	}
+	config.FileSet(remoteName, "type", "http")
+	config.FileSet(remoteName, "url", ts.URL)

 	// return a function to tidy up
-	return m, ts.Close
+	return ts.Close
 }

 // prepare the test server and return a function to tidy it up afterwards
 func prepare(t *testing.T) (fs.Fs, func()) {
-	m, tidy := prepareServer(t)
+	tidy := prepareServer(t)

 	// Instantiate it
-	f, err := NewFs(remoteName, "", m)
+	f, err := NewFs(remoteName, "")
 	require.NoError(t, err)

 	return f, tidy
 }

-func testListRoot(t *testing.T, f fs.Fs, noSlash bool) {
+func testListRoot(t *testing.T, f fs.Fs) {
 	entries, err := f.List("")
 	require.NoError(t, err)

@@ -93,29 +87,15 @@ func testListRoot(t *testing.T, f fs.Fs, noSlash bool) {

 	e = entries[3]
 	assert.Equal(t, "two.html", e.Remote())
-	if noSlash {
-		assert.Equal(t, int64(-1), e.Size())
-		_, ok = e.(fs.Directory)
-		assert.True(t, ok)
-	} else {
-		assert.Equal(t, int64(41), e.Size())
-		_, ok = e.(*Object)
-		assert.True(t, ok)
-	}
+	assert.Equal(t, int64(7), e.Size())
+	_, ok = e.(*Object)
+	assert.True(t, ok)
 }

 func TestListRoot(t *testing.T) {
 	f, tidy := prepare(t)
 	defer tidy()
-	testListRoot(t, f, false)
-}
-
-func TestListRootNoSlash(t *testing.T) {
-	f, tidy := prepare(t)
-	f.(*Fs).opt.NoSlash = true
-	defer tidy()
-
-	testListRoot(t, f, true)
+	testListRoot(t, f)
 }

 func TestListSubDir(t *testing.T) {
@@ -158,11 +138,6 @@ func TestNewObject(t *testing.T) {

 	dt, ok := fstest.CheckTimeEqualWithPrecision(tObj, tFile, time.Second)
 	assert.True(t, ok, fmt.Sprintf("%s: Modification time difference too big |%s| > %s (%s vs %s) (precision %s)", o.Remote(), dt, time.Second, tObj, tFile, time.Second))
-
-	// check object not found
-	o, err = f.NewObject("not found.txt")
-	assert.Nil(t, o)
-	assert.Equal(t, fs.ErrorObjectNotFound, err)
 }

 func TestOpen(t *testing.T) {
@@ -202,20 +177,20 @@ func TestMimeType(t *testing.T) {
 }

 func TestIsAFileRoot(t *testing.T) {
-	m, tidy := prepareServer(t)
+	tidy := prepareServer(t)
 	defer tidy()

-	f, err := NewFs(remoteName, "one%.txt", m)
+	f, err := NewFs(remoteName, "one%.txt")
 	assert.Equal(t, err, fs.ErrorIsFile)

-	testListRoot(t, f, false)
+	testListRoot(t, f)
 }

 func TestIsAFileSubDir(t *testing.T) {
-	m, tidy := prepareServer(t)
+	tidy := prepareServer(t)
 	defer tidy()

-	f, err := NewFs(remoteName, "three/underthree.txt", m)
+	f, err := NewFs(remoteName, "three/underthree.txt")
 	assert.Equal(t, err, fs.ErrorIsFile)

 	entries, err := f.List("")
--- a/backend/http/test/files/two.html
+++ b/backend/http/test/files/two.html
@@ -1 +1 @@
-<a href="two.html/file.txt">file.txt</a>
+potato
--- a/backend/hubic/auth.go
+++ b/backend/hubic/auth.go
@@ -2,9 +2,7 @@ package hubic

 import (
 	"net/http"
-	"time"

-	"github.com/ncw/rclone/fs"
 	"github.com/ncw/swift"
 )

@@ -23,17 +21,12 @@ func newAuth(f *Fs) *auth {
 // Request constructs a http.Request for authentication
 //
 // returns nil for not needed
-func (a *auth) Request(*swift.Connection) (r *http.Request, err error) {
-	const retries = 10
-	for try := 1; try <= retries; try++ {
-		err = a.f.getCredentials()
-		if err == nil {
-			break
-		}
-		time.Sleep(100 * time.Millisecond)
-		fs.Debugf(a.f, "retrying auth request %d/%d: %v", try, retries, err)
+func (a *auth) Request(*swift.Connection) (*http.Request, error) {
+	err := a.f.getCredentials()
+	if err != nil {
+		return nil, err
 	}
-	return nil, err
+	return nil, nil
 }

 // Response parses the result of an http request
--- a/backend/hubic/hubic.go
+++ b/backend/hubic/hubic.go
@@ -9,17 +9,13 @@ package hubic
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"net/http"
-	"strings"
 	"time"

 	"github.com/ncw/rclone/backend/swift"
 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/config"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
 	"github.com/ncw/rclone/fs/config/obscure"
 	"github.com/ncw/rclone/fs/fshttp"
 	"github.com/ncw/rclone/lib/oauthutil"
@@ -56,19 +52,19 @@ func init() {
 		Name:        "hubic",
 		Description: "Hubic",
 		NewFs:       NewFs,
-		Config: func(name string, m configmap.Mapper) {
-			err := oauthutil.Config("hubic", name, m, oauthConfig)
+		Config: func(name string) {
+			err := oauthutil.Config("hubic", name, oauthConfig)
 			if err != nil {
 				log.Fatalf("Failed to configure token: %v", err)
 			}
 		},
-		Options: append([]fs.Option{{
+		Options: []fs.Option{{
 			Name: config.ConfigClientID,
-			Help: "Hubic Client Id\nLeave blank normally.",
+			Help: "Hubic Client Id - leave blank normally.",
 		}, {
 			Name: config.ConfigClientSecret,
-			Help: "Hubic Client Secret\nLeave blank normally.",
-		}}, swift.SharedOptions...),
+			Help: "Hubic Client Secret - leave blank normally.",
+		}},
 	})
 }

@@ -126,9 +122,7 @@ func (f *Fs) getCredentials() (err error) {
 	}
 	defer fs.CheckClose(resp.Body, &err)
 	if resp.StatusCode < 200 || resp.StatusCode > 299 {
-		body, _ := ioutil.ReadAll(resp.Body)
-		bodyStr := strings.TrimSpace(strings.Replace(string(body), "\n", " ", -1))
-		return errors.Errorf("failed to get credentials: %s: %s", resp.Status, bodyStr)
+		return errors.Errorf("failed to get credentials: %s", resp.Status)
 	}
 	decoder := json.NewDecoder(resp.Body)
 	var result credentials
@@ -151,8 +145,8 @@ func (f *Fs) getCredentials() (err error) {
 }

 // NewFs constructs an Fs from the path, container:path
-func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
-	client, _, err := oauthutil.NewClient(name, m, oauthConfig)
+func NewFs(name, root string) (fs.Fs, error) {
+	client, _, err := oauthutil.NewClient(name, oauthConfig)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to configure Hubic")
 	}
@@ -173,15 +167,8 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 		return nil, errors.Wrap(err, "error authenticating swift connection")
 	}

-	// Parse config into swift.Options struct
-	opt := new(swift.Options)
-	err = configstruct.Set(m, opt)
-	if err != nil {
-		return nil, err
-	}
-
 	// Make inner swift Fs from the connection
-	swiftFs, err := swift.NewFsWithConnection(opt, name, root, c, true)
+	swiftFs, err := swift.NewFsWithConnection(name, root, c, true)
 	if err != nil && err != fs.ErrorIsFile {
 		return nil, err
 	}
--- a/backend/jottacloud/api/types.go
+++ b/backend/jottacloud/api/types.go
@@ -1,316 +0,0 @@
-package api
-
-import (
-	"encoding/xml"
-	"fmt"
-	"time"
-
-	"github.com/pkg/errors"
-)
-
-const (
-	// default time format for almost all request and responses
-	timeFormat = "2006-01-02-T15:04:05Z0700"
-	// the API server seems to use a different format
-	apiTimeFormat = "2006-01-02T15:04:05Z07:00"
-)
-
-// Time represents time values in the Jottacloud API. It uses a custom RFC3339 like format.
-type Time time.Time
-
-// UnmarshalXML turns XML into a Time
-func (t *Time) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
-	var v string
-	if err := d.DecodeElement(&v, &start); err != nil {
-		return err
-	}
-	if v == "" {
-		*t = Time(time.Time{})
-		return nil
-	}
-	newTime, err := time.Parse(timeFormat, v)
-	if err == nil {
-		*t = Time(newTime)
-	}
-	return err
-}
-
-// MarshalXML turns a Time into XML
-func (t *Time) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
-	return e.EncodeElement(t.String(), start)
-}
-
-// Return Time string in Jottacloud format
-func (t Time) String() string { return time.Time(t).Format(timeFormat) }
-
-// APIString returns Time string in Jottacloud API format
-func (t Time) APIString() string { return time.Time(t).Format(apiTimeFormat) }
-
-// Flag is a hacky type for checking if an attribute is present
-type Flag bool
-
-// UnmarshalXMLAttr sets Flag to true if the attribute is present
-func (f *Flag) UnmarshalXMLAttr(attr xml.Attr) error {
-	*f = true
-	return nil
-}
-
-// MarshalXMLAttr : Do not use
-func (f *Flag) MarshalXMLAttr(name xml.Name) (xml.Attr, error) {
-	attr := xml.Attr{
-		Name:  name,
-		Value: "false",
-	}
-	return attr, errors.New("unimplemented")
-}
-
-// TokenJSON is the struct representing the HTTP response from OAuth2
-// providers returning a token in JSON form.
-type TokenJSON struct {
-	AccessToken  string `json:"access_token"`
-	TokenType    string `json:"token_type"`
-	RefreshToken string `json:"refresh_token"`
-	ExpiresIn    int32  `json:"expires_in"` // at least PayPal returns string, while most return number
-}
-
-/*
-GET http://www.jottacloud.com/JFS/<account>
-
-<user time="2018-07-18-T21:39:10Z" host="dn-132">
-	<username>12qh1wsht8cssxdtwl15rqh9</username>
-	<account-type>free</account-type>
-	<locked>false</locked>
-	<capacity>5368709120</capacity>
-	<max-devices>-1</max-devices>
-	<max-mobile-devices>-1</max-mobile-devices>
-	<usage>0</usage>
-	<read-locked>false</read-locked>
-	<write-locked>false</write-locked>
-	<quota-write-locked>false</quota-write-locked>
-	<enable-sync>true</enable-sync>
-	<enable-foldershare>true</enable-foldershare>
-	<devices>
-		<device>
-			<name xml:space="preserve">Jotta</name>
-			<display_name xml:space="preserve">Jotta</display_name>
-			<type>JOTTA</type>
-			<sid>5c458d01-9eaf-4f23-8d3c-2486fd9704d8</sid>
-			<size>0</size>
-			<modified>2018-07-15-T22:04:59Z</modified>
-		</device>
-	</devices>
-</user>
-*/
-
-// AccountInfo represents a Jottacloud account
-type AccountInfo struct {
-	Username          string        `xml:"username"`
-	AccountType       string        `xml:"account-type"`
-	Locked            bool          `xml:"locked"`
-	Capacity          int64         `xml:"capacity"`
-	MaxDevices        int           `xml:"max-devices"`
-	MaxMobileDevices  int           `xml:"max-mobile-devices"`
-	Usage             int64         `xml:"usage"`
-	ReadLocked        bool          `xml:"read-locked"`
-	WriteLocked       bool          `xml:"write-locked"`
-	QuotaWriteLocked  bool          `xml:"quota-write-locked"`
-	EnableSync        bool          `xml:"enable-sync"`
-	EnableFolderShare bool          `xml:"enable-foldershare"`
-	Devices           []JottaDevice `xml:"devices>device"`
-}
-
-/*
-GET http://www.jottacloud.com/JFS/<account>/<device>
-
-<device time="2018-07-23-T20:21:50Z" host="dn-158">
-	<name xml:space="preserve">Jotta</name>
-	<display_name xml:space="preserve">Jotta</display_name>
-	<type>JOTTA</type>
-	<sid>5c458d01-9eaf-4f23-8d3c-2486fd9704d8</sid>
-	<size>0</size>
-	<modified>2018-07-15-T22:04:59Z</modified>
-	<user>12qh1wsht8cssxdtwl15rqh9</user>
-	<mountPoints>
-		<mountPoint>
-			<name xml:space="preserve">Archive</name>
-			<size>0</size>
-		<modified>2018-07-15-T22:04:59Z</modified>
-		</mountPoint>
-		<mountPoint>
-			<name xml:space="preserve">Shared</name>
-			<size>0</size>
-			<modified></modified>
-		</mountPoint>
-		<mountPoint>
-			<name xml:space="preserve">Sync</name>
-			<size>0</size>
-			<modified></modified>
-		</mountPoint>
-	</mountPoints>
-	<metadata first="" max="" total="3" num_mountpoints="3"/>
-</device>
-*/
-
-// JottaDevice represents a Jottacloud Device
-type JottaDevice struct {
-	Name        string            `xml:"name"`
-	DisplayName string            `xml:"display_name"`
-	Type        string            `xml:"type"`
-	Sid         string            `xml:"sid"`
-	Size        int64             `xml:"size"`
-	User        string            `xml:"user"`
-	MountPoints []JottaMountPoint `xml:"mountPoints>mountPoint"`
-}
-
-/*
-GET http://www.jottacloud.com/JFS/<account>/<device>/<mountpoint>
-
-<mountPoint time="2018-07-24-T20:35:02Z" host="dn-157">
-	<name xml:space="preserve">Sync</name>
-	<path xml:space="preserve">/12qh1wsht8cssxdtwl15rqh9/Jotta</path>
-	<abspath xml:space="preserve">/12qh1wsht8cssxdtwl15rqh9/Jotta</abspath>
-	<size>0</size>
-	<modified></modified>
-	<device>Jotta</device>
-	<user>12qh1wsht8cssxdtwl15rqh9</user>
-	<folders>
-		<folder name="test"/>
-	</folders>
-	<metadata first="" max="" total="1" num_folders="1" num_files="0"/>
-</mountPoint>
-*/
-
-// JottaMountPoint represents a Jottacloud mountpoint
-type JottaMountPoint struct {
-	Name    string        `xml:"name"`
-	Size    int64         `xml:"size"`
-	Device  string        `xml:"device"`
-	Folders []JottaFolder `xml:"folders>folder"`
-	Files   []JottaFile   `xml:"files>file"`
-}
-
-/*
-GET http://www.jottacloud.com/JFS/<account>/<device>/<mountpoint>/<folder>
-
-<folder name="test" time="2018-07-24-T20:41:37Z" host="dn-158">
-	<path xml:space="preserve">/12qh1wsht8cssxdtwl15rqh9/Jotta/Sync</path>
-	<abspath xml:space="preserve">/12qh1wsht8cssxdtwl15rqh9/Jotta/Sync</abspath>
-	<folders>
-		<folder name="t2"/>c
-	</folders>
-	<files>
-		<file name="block.csv" uuid="f6553cd4-1135-48fe-8e6a-bb9565c50ef2">
-			<currentRevision>
-				<number>1</number>
-				<state>COMPLETED</state>
-				<created>2018-07-05-T15:08:02Z</created>
-				<modified>2018-07-05-T15:08:02Z</modified>
-				<mime>application/octet-stream</mime>
-				<size>30827730</size>
-				<md5>1e8a7b728ab678048df00075c9507158</md5>
-				<updated>2018-07-24-T20:41:10Z</updated>
-			</currentRevision>
-		</file>
-	</files>
-	<metadata first="" max="" total="2" num_folders="1" num_files="1"/>
-</folder>
-*/
-
-// JottaFolder represents a JottacloudFolder
-type JottaFolder struct {
-	XMLName    xml.Name
-	Name       string        `xml:"name,attr"`
-	Deleted    Flag          `xml:"deleted,attr"`
-	Path       string        `xml:"path"`
-	CreatedAt  Time          `xml:"created"`
-	ModifiedAt Time          `xml:"modified"`
-	Updated    Time          `xml:"updated"`
-	Folders    []JottaFolder `xml:"folders>folder"`
-	Files      []JottaFile   `xml:"files>file"`
-}
-
-/*
-GET http://www.jottacloud.com/JFS/<account>/<device>/<mountpoint>/.../<file>
-
-<file name="block.csv" uuid="f6553cd4-1135-48fe-8e6a-bb9565c50ef2">
-	<currentRevision>
-		<number>1</number>
-		<state>COMPLETED</state>
-		<created>2018-07-05-T15:08:02Z</created>
-		<modified>2018-07-05-T15:08:02Z</modified>
-		<mime>application/octet-stream</mime>
-		<size>30827730</size>
-		<md5>1e8a7b728ab678048df00075c9507158</md5>
-		<updated>2018-07-24-T20:41:10Z</updated>
-	</currentRevision>
-</file>
-*/
-
-// JottaFile represents a Jottacloud file
-type JottaFile struct {
-	XMLName         xml.Name
-	Name            string `xml:"name,attr"`
-	Deleted         Flag   `xml:"deleted,attr"`
-	PublicSharePath string `xml:"publicSharePath"`
-	State           string `xml:"currentRevision>state"`
-	CreatedAt       Time   `xml:"currentRevision>created"`
-	ModifiedAt      Time   `xml:"currentRevision>modified"`
-	Updated         Time   `xml:"currentRevision>updated"`
-	Size            int64  `xml:"currentRevision>size"`
-	MimeType        string `xml:"currentRevision>mime"`
-	MD5             string `xml:"currentRevision>md5"`
-}
-
-// Error is a custom Error for wrapping Jottacloud error responses
-type Error struct {
-	StatusCode int    `xml:"code"`
-	Message    string `xml:"message"`
-	Reason     string `xml:"reason"`
-	Cause      string `xml:"cause"`
-}
-
-// Error returns a string for the error and statistifes the error interface
-func (e *Error) Error() string {
-	out := fmt.Sprintf("error %d", e.StatusCode)
-	if e.Message != "" {
-		out += ": " + e.Message
-	}
-	if e.Reason != "" {
-		out += fmt.Sprintf(" (%+v)", e.Reason)
-	}
-	return out
-}
-
-// AllocateFileRequest to prepare an upload to Jottacloud
-type AllocateFileRequest struct {
-	Bytes    int64  `json:"bytes"`
-	Created  string `json:"created"`
-	Md5      string `json:"md5"`
-	Modified string `json:"modified"`
-	Path     string `json:"path"`
-}
-
-// AllocateFileResponse for upload requests
-type AllocateFileResponse struct {
-	Name      string `json:"name"`
-	Path      string `json:"path"`
-	State     string `json:"state"`
-	UploadID  string `json:"upload_id"`
-	UploadURL string `json:"upload_url"`
-	Bytes     int64  `json:"bytes"`
-	ResumePos int64  `json:"resume_pos"`
-}
-
-// UploadResponse after an upload
-type UploadResponse struct {
-	Name      string      `json:"name"`
-	Path      string      `json:"path"`
-	Kind      string      `json:"kind"`
-	ContentID string      `json:"content_id"`
-	Bytes     int64       `json:"bytes"`
-	Md5       string      `json:"md5"`
-	Created   int64       `json:"created"`
-	Modified  int64       `json:"modified"`
-	Deleted   interface{} `json:"deleted"`
-	Mime      string      `json:"mime"`
-}
--- a/backend/jottacloud/api/types_test.go
+++ b/backend/jottacloud/api/types_test.go
@@ -1,29 +0,0 @@
-package api
-
-import (
-	"encoding/xml"
-	"testing"
-	"time"
-)
-
-func TestMountpointEmptyModificationTime(t *testing.T) {
-	mountpoint := `
-<mountPoint time="2018-08-12-T09:58:24Z" host="dn-157">
-  <name xml:space="preserve">Sync</name>
-  <path xml:space="preserve">/foo/Jotta</path>
-  <abspath xml:space="preserve">/foo/Jotta</abspath>
-  <size>0</size>
-  <modified></modified>
-  <device>Jotta</device>
-  <user>foo</user>
-  <metadata first="" max="" total="0" num_folders="0" num_files="0"/>
-</mountPoint>
-`
-	var jf JottaFolder
-	if err := xml.Unmarshal([]byte(mountpoint), &jf); err != nil {
-		t.Fatal(err)
-	}
-	if !time.Time(jf.ModifiedAt).IsZero() {
-		t.Errorf("got non-zero time, want zero")
-	}
-}
--- a/backend/jottacloud/jottacloud.go
+++ b/backend/jottacloud/jottacloud.go
--- a/backend/jottacloud/jottacloud_internal_test.go
+++ b/backend/jottacloud/jottacloud_internal_test.go
@@ -1,42 +0,0 @@
-package jottacloud
-
-import (
-	"crypto/md5"
-	"fmt"
-	"io"
-	"testing"
-
-	"github.com/ncw/rclone/lib/readers"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func TestReadMD5(t *testing.T) {
-	// Check readMD5 for different size and threshold
-	for _, size := range []int64{0, 1024, 10 * 1024, 100 * 1024} {
-		t.Run(fmt.Sprintf("%d", size), func(t *testing.T) {
-			hasher := md5.New()
-			n, err := io.Copy(hasher, readers.NewPatternReader(size))
-			require.NoError(t, err)
-			assert.Equal(t, n, size)
-			wantMD5 := fmt.Sprintf("%x", hasher.Sum(nil))
-			for _, threshold := range []int64{512, 1024, 10 * 1024, 20 * 1024} {
-				t.Run(fmt.Sprintf("%d", threshold), func(t *testing.T) {
-					in := readers.NewPatternReader(size)
-					gotMD5, out, cleanup, err := readMD5(in, size, threshold)
-					defer cleanup()
-					require.NoError(t, err)
-					assert.Equal(t, wantMD5, gotMD5)
-
-					// check md5hash of out
-					hasher := md5.New()
-					n, err := io.Copy(hasher, out)
-					require.NoError(t, err)
-					assert.Equal(t, n, size)
-					outMD5 := fmt.Sprintf("%x", hasher.Sum(nil))
-					assert.Equal(t, wantMD5, outMD5)
-				})
-			}
-		})
-	}
-}
--- a/backend/jottacloud/jottacloud_test.go
+++ b/backend/jottacloud/jottacloud_test.go
@@ -1,17 +0,0 @@
-// Test Box filesystem interface
-package jottacloud_test
-
-import (
-	"testing"
-
-	"github.com/ncw/rclone/backend/jottacloud"
-	"github.com/ncw/rclone/fstest/fstests"
-)
-
-// TestIntegration runs integration tests against the remote
-func TestIntegration(t *testing.T) {
-	fstests.Run(t, &fstests.Opt{
-		RemoteName: "TestJottacloud:",
-		NilObject:  (*jottacloud.Object)(nil),
-	})
-}
--- a/backend/jottacloud/replace.go
+++ b/backend/jottacloud/replace.go
@@ -1,77 +0,0 @@
-/*
-Translate file names for JottaCloud adapted from OneDrive
-
-
-The following characters are JottaCloud reserved characters, and can't
-be used in JottaCloud folder and file names.
-
-  jottacloud  = "/" / "\" / "*" / "<" / ">" / "?" / "!" / "&" / ":" / ";" / "|" / "#" / "%" / """ / "'" / "." / "~"
-
-
-*/
-
-package jottacloud
-
-import (
-	"regexp"
-	"strings"
-)
-
-// charMap holds replacements for characters
-//
-// Onedrive has a restricted set of characters compared to other cloud
-// storage systems, so we to map these to the FULLWIDTH unicode
-// equivalents
-//
-// http://unicode-search.net/unicode-namesearch.pl?term=SOLIDUS
-var (
-	charMap = map[rune]rune{
-		'\\': '＼', // FULLWIDTH REVERSE SOLIDUS
-		'*':  '＊', // FULLWIDTH ASTERISK
-		'<':  '＜', // FULLWIDTH LESS-THAN SIGN
-		'>':  '＞', // FULLWIDTH GREATER-THAN SIGN
-		'?':  '？', // FULLWIDTH QUESTION MARK
-		':':  '：', // FULLWIDTH COLON
-		';':  '；', // FULLWIDTH SEMICOLON
-		'|':  '｜', // FULLWIDTH VERTICAL LINE
-		'"':  '＂', // FULLWIDTH QUOTATION MARK - not on the list but seems to be reserved
-		' ':  '␠', // SYMBOL FOR SPACE
-	}
-	invCharMap           map[rune]rune
-	fixStartingWithSpace = regexp.MustCompile(`(/|^) `)
-	fixEndingWithSpace   = regexp.MustCompile(` (/|$)`)
-)
-
-func init() {
-	// Create inverse charMap
-	invCharMap = make(map[rune]rune, len(charMap))
-	for k, v := range charMap {
-		invCharMap[v] = k
-	}
-}
-
-// replaceReservedChars takes a path and substitutes any reserved
-// characters in it
-func replaceReservedChars(in string) string {
-	// Filenames can't start with space
-	in = fixStartingWithSpace.ReplaceAllString(in, "$1"+string(charMap[' ']))
-	// Filenames can't end with space
-	in = fixEndingWithSpace.ReplaceAllString(in, string(charMap[' '])+"$1")
-	return strings.Map(func(c rune) rune {
-		if replacement, ok := charMap[c]; ok && c != ' ' {
-			return replacement
-		}
-		return c
-	}, in)
-}
-
-// restoreReservedChars takes a path and undoes any substitutions
-// made by replaceReservedChars
-func restoreReservedChars(in string) string {
-	return strings.Map(func(c rune) rune {
-		if replacement, ok := invCharMap[c]; ok {
-			return replacement
-		}
-		return c
-	}, in)
-}
--- a/backend/jottacloud/replace_test.go
+++ b/backend/jottacloud/replace_test.go
@@ -1,28 +0,0 @@
-package jottacloud
-
-import "testing"
-
-func TestReplace(t *testing.T) {
-	for _, test := range []struct {
-		in  string
-		out string
-	}{
-		{"", ""},
-		{"abc 123", "abc 123"},
-		{`\*<>?:;|"`, `＼＊＜＞？：；｜＂`},
-		{`\*<>?:;|"\*<>?:;|"`, `＼＊＜＞？：；｜＂＼＊＜＞？：；｜＂`},
-		{" leading space", "␠leading space"},
-		{"trailing space ", "trailing space␠"},
-		{" leading space/ leading space/ leading space", "␠leading space/␠leading space/␠leading space"},
-		{"trailing space /trailing space /trailing space ", "trailing space␠/trailing space␠/trailing space␠"},
-	} {
-		got := replaceReservedChars(test.in)
-		if got != test.out {
-			t.Errorf("replaceReservedChars(%q) want %q got %q", test.in, test.out, got)
-		}
-		got2 := restoreReservedChars(got)
-		if got2 != test.in {
-			t.Errorf("restoreReservedChars(%q) want %q got %q", got, test.in, got2)
-		}
-	}
-}
--- a/backend/koofr/koofr.go
+++ b/backend/koofr/koofr.go
@@ -1,589 +0,0 @@
-package koofr
-
-import (
-	"encoding/base64"
-	"errors"
-	"fmt"
-	"io"
-	"net/http"
-	"path"
-	"strings"
-	"time"
-
-	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
-	"github.com/ncw/rclone/fs/config/obscure"
-	"github.com/ncw/rclone/fs/hash"
-
-	httpclient "github.com/koofr/go-httpclient"
-	koofrclient "github.com/koofr/go-koofrclient"
-)
-
-// Register Fs with rclone
-func init() {
-	fs.Register(&fs.RegInfo{
-		Name:        "koofr",
-		Description: "Koofr",
-		NewFs:       NewFs,
-		Options: []fs.Option{
-			{
-				Name:     "endpoint",
-				Help:     "The Koofr API endpoint to use",
-				Default:  "https://app.koofr.net",
-				Required: true,
-				Advanced: true,
-			}, {
-				Name:     "mountid",
-				Help:     "Mount ID of the mount to use. If omitted, the primary mount is used.",
-				Required: false,
-				Default:  "",
-				Advanced: true,
-			}, {
-				Name:     "user",
-				Help:     "Your Koofr user name",
-				Required: true,
-			}, {
-				Name:       "password",
-				Help:       "Your Koofr password for rclone (generate one at https://app.koofr.net/app/admin/preferences/password)",
-				IsPassword: true,
-				Required:   true,
-			},
-		},
-	})
-}
-
-// Options represent the configuration of the Koofr backend
-type Options struct {
-	Endpoint string `config:"endpoint"`
-	MountID  string `config:"mountid"`
-	User     string `config:"user"`
-	Password string `config:"password"`
-}
-
-// A Fs is a representation of a remote Koofr Fs
-type Fs struct {
-	name     string
-	mountID  string
-	root     string
-	opt      Options
-	features *fs.Features
-	client   *koofrclient.KoofrClient
-}
-
-// An Object on the remote Koofr Fs
-type Object struct {
-	fs     *Fs
-	remote string
-	info   koofrclient.FileInfo
-}
-
-func base(pth string) string {
-	rv := path.Base(pth)
-	if rv == "" || rv == "." {
-		rv = "/"
-	}
-	return rv
-}
-
-func dir(pth string) string {
-	rv := path.Dir(pth)
-	if rv == "" || rv == "." {
-		rv = "/"
-	}
-	return rv
-}
-
-// String returns a string representation of the remote Object
-func (o *Object) String() string {
-	return o.remote
-}
-
-// Remote returns the remote path of the Object, relative to Fs root
-func (o *Object) Remote() string {
-	return o.remote
-}
-
-// ModTime returns the modification time of the Object
-func (o *Object) ModTime() time.Time {
-	return time.Unix(o.info.Modified/1000, (o.info.Modified%1000)*1000*1000)
-}
-
-// Size return the size of the Object in bytes
-func (o *Object) Size() int64 {
-	return o.info.Size
-}
-
-// Fs returns a reference to the Koofr Fs containing the Object
-func (o *Object) Fs() fs.Info {
-	return o.fs
-}
-
-// Hash returns an MD5 hash of the Object
-func (o *Object) Hash(typ hash.Type) (string, error) {
-	if typ == hash.MD5 {
-		return o.info.Hash, nil
-	}
-	return "", nil
-}
-
-// fullPath returns full path of the remote Object (including Fs root)
-func (o *Object) fullPath() string {
-	return o.fs.fullPath(o.remote)
-}
-
-// Storable returns true if the Object is storable
-func (o *Object) Storable() bool {
-	return true
-}
-
-// SetModTime is not supported
-func (o *Object) SetModTime(mtime time.Time) error {
-	return nil
-}
-
-// Open opens the Object for reading
-func (o *Object) Open(options ...fs.OpenOption) (io.ReadCloser, error) {
-	var sOff, eOff int64 = 0, -1
-
-	for _, option := range options {
-		switch x := option.(type) {
-		case *fs.SeekOption:
-			sOff = x.Offset
-		case *fs.RangeOption:
-			sOff = x.Start
-			eOff = x.End
-		default:
-			if option.Mandatory() {
-				fs.Logf(o, "Unsupported mandatory option: %v", option)
-			}
-		}
-	}
-	if sOff == 0 && eOff < 0 {
-		return o.fs.client.FilesGet(o.fs.mountID, o.fullPath())
-	}
-	if sOff < 0 {
-		sOff = o.Size() - eOff
-		eOff = o.Size()
-	}
-	if eOff > o.Size() {
-		eOff = o.Size()
-	}
-	span := &koofrclient.FileSpan{
-		Start: sOff,
-		End:   eOff,
-	}
-	return o.fs.client.FilesGetRange(o.fs.mountID, o.fullPath(), span)
-}
-
-// Update updates the Object contents
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
-	putopts := &koofrclient.PutFilter{
-		ForceOverwrite:    true,
-		NoRename:          true,
-		IgnoreNonExisting: true,
-	}
-	fullPath := o.fullPath()
-	dirPath := dir(fullPath)
-	name := base(fullPath)
-	err := o.fs.mkdir(dirPath)
-	if err != nil {
-		return err
-	}
-	info, err := o.fs.client.FilesPutOptions(o.fs.mountID, dirPath, name, in, putopts)
-	if err != nil {
-		return err
-	}
-	o.info = *info
-	return nil
-}
-
-// Remove deletes the remote Object
-func (o *Object) Remove() error {
-	return o.fs.client.FilesDelete(o.fs.mountID, o.fullPath())
-}
-
-// Name returns the name of the Fs
-func (f *Fs) Name() string {
-	return f.name
-}
-
-// Root returns the root path of the Fs
-func (f *Fs) Root() string {
-	return f.root
-}
-
-// String returns a string representation of the Fs
-func (f *Fs) String() string {
-	return "koofr:" + f.mountID + ":" + f.root
-}
-
-// Features returns the optional features supported by this Fs
-func (f *Fs) Features() *fs.Features {
-	return f.features
-}
-
-// Precision denotes that setting modification times is not supported
-func (f *Fs) Precision() time.Duration {
-	return fs.ModTimeNotSupported
-}
-
-// Hashes returns a set of hashes are Provided by the Fs
-func (f *Fs) Hashes() hash.Set {
-	return hash.Set(hash.MD5)
-}
-
-// fullPath constructs a full, absolute path from a Fs root relative path,
-func (f *Fs) fullPath(part string) string {
-	return path.Join("/", f.root, part)
-}
-
-// NewFs constructs a new filesystem given a root path and configuration options
-func NewFs(name, root string, m configmap.Mapper) (ff fs.Fs, err error) {
-	opt := new(Options)
-	err = configstruct.Set(m, opt)
-	if err != nil {
-		return nil, err
-	}
-	pass, err := obscure.Reveal(opt.Password)
-	if err != nil {
-		return nil, err
-	}
-	client := koofrclient.NewKoofrClient(opt.Endpoint, false)
-	basicAuth := fmt.Sprintf("Basic %s",
-		base64.StdEncoding.EncodeToString([]byte(opt.User+":"+pass)))
-	client.HTTPClient.Headers.Set("Authorization", basicAuth)
-	mounts, err := client.Mounts()
-	if err != nil {
-		return nil, err
-	}
-	f := &Fs{
-		name:   name,
-		root:   root,
-		opt:    *opt,
-		client: client,
-	}
-	f.features = (&fs.Features{
-		CaseInsensitive:         true,
-		DuplicateFiles:          false,
-		BucketBased:             false,
-		CanHaveEmptyDirectories: true,
-	}).Fill(f)
-	for _, m := range mounts {
-		if opt.MountID != "" {
-			if m.Id == opt.MountID {
-				f.mountID = m.Id
-				break
-			}
-		} else if m.IsPrimary {
-			f.mountID = m.Id
-			break
-		}
-	}
-	if f.mountID == "" {
-		if opt.MountID == "" {
-			return nil, errors.New("Failed to find primary mount")
-		}
-		return nil, errors.New("Failed to find mount " + opt.MountID)
-	}
-	rootFile, err := f.client.FilesInfo(f.mountID, "/"+f.root)
-	if err == nil && rootFile.Type != "dir" {
-		f.root = dir(f.root)
-		err = fs.ErrorIsFile
-	} else {
-		err = nil
-	}
-	return f, err
-}
-
-// List returns a list of items in a directory
-func (f *Fs) List(dir string) (entries fs.DirEntries, err error) {
-	files, err := f.client.FilesList(f.mountID, f.fullPath(dir))
-	if err != nil {
-		return nil, translateErrorsDir(err)
-	}
-	entries = make([]fs.DirEntry, len(files))
-	for i, file := range files {
-		if file.Type == "dir" {
-			entries[i] = fs.NewDir(path.Join(dir, file.Name), time.Unix(0, 0))
-		} else {
-			entries[i] = &Object{
-				fs:     f,
-				info:   file,
-				remote: path.Join(dir, file.Name),
-			}
-		}
-	}
-	return entries, nil
-}
-
-// NewObject creates a new remote Object for a given remote path
-func (f *Fs) NewObject(remote string) (obj fs.Object, err error) {
-	info, err := f.client.FilesInfo(f.mountID, f.fullPath(remote))
-	if err != nil {
-		return nil, translateErrorsObject(err)
-	}
-	if info.Type == "dir" {
-		return nil, fs.ErrorNotAFile
-	}
-	return &Object{
-		fs:     f,
-		info:   info,
-		remote: remote,
-	}, nil
-}
-
-// Put updates a remote Object
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (obj fs.Object, err error) {
-	putopts := &koofrclient.PutFilter{
-		ForceOverwrite:    true,
-		NoRename:          true,
-		IgnoreNonExisting: true,
-	}
-	fullPath := f.fullPath(src.Remote())
-	dirPath := dir(fullPath)
-	name := base(fullPath)
-	err = f.mkdir(dirPath)
-	if err != nil {
-		return nil, err
-	}
-	info, err := f.client.FilesPutOptions(f.mountID, dirPath, name, in, putopts)
-	if err != nil {
-		return nil, translateErrorsObject(err)
-	}
-	return &Object{
-		fs:     f,
-		info:   *info,
-		remote: src.Remote(),
-	}, nil
-}
-
-// PutStream updates a remote Object with a stream of unknown size
-func (f *Fs) PutStream(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
-	return f.Put(in, src, options...)
-}
-
-// isBadRequest is a predicate which holds true iff the error returned was
-// HTTP status 400
-func isBadRequest(err error) bool {
-	switch err := err.(type) {
-	case httpclient.InvalidStatusError:
-		if err.Got == http.StatusBadRequest {
-			return true
-		}
-	}
-	return false
-}
-
-// translateErrorsDir translates koofr errors to rclone errors (for a dir
-// operation)
-func translateErrorsDir(err error) error {
-	switch err := err.(type) {
-	case httpclient.InvalidStatusError:
-		if err.Got == http.StatusNotFound {
-			return fs.ErrorDirNotFound
-		}
-	}
-	return err
-}
-
-// translatesErrorsObject translates Koofr errors to rclone errors (for an object operation)
-func translateErrorsObject(err error) error {
-	switch err := err.(type) {
-	case httpclient.InvalidStatusError:
-		if err.Got == http.StatusNotFound {
-			return fs.ErrorObjectNotFound
-		}
-	}
-	return err
-}
-
-// mkdir creates a directory at the given remote path. Creates ancestors if
-// neccessary
-func (f *Fs) mkdir(fullPath string) error {
-	if fullPath == "/" {
-		return nil
-	}
-	info, err := f.client.FilesInfo(f.mountID, fullPath)
-	if err == nil && info.Type == "dir" {
-		return nil
-	}
-	err = translateErrorsDir(err)
-	if err != nil && err != fs.ErrorDirNotFound {
-		return err
-	}
-	dirs := strings.Split(fullPath, "/")
-	parent := "/"
-	for _, part := range dirs {
-		if part == "" {
-			continue
-		}
-		info, err = f.client.FilesInfo(f.mountID, path.Join(parent, part))
-		if err != nil || info.Type != "dir" {
-			err = translateErrorsDir(err)
-			if err != nil && err != fs.ErrorDirNotFound {
-				return err
-			}
-			err = f.client.FilesNewFolder(f.mountID, parent, part)
-			if err != nil && !isBadRequest(err) {
-				return err
-			}
-		}
-		parent = path.Join(parent, part)
-	}
-	return nil
-}
-
-// Mkdir creates a directory at the given remote path. Creates ancestors if
-// necessary
-func (f *Fs) Mkdir(dir string) error {
-	fullPath := f.fullPath(dir)
-	return f.mkdir(fullPath)
-}
-
-// Rmdir removes an (empty) directory at the given remote path
-func (f *Fs) Rmdir(dir string) error {
-	files, err := f.client.FilesList(f.mountID, f.fullPath(dir))
-	if err != nil {
-		return translateErrorsDir(err)
-	}
-	if len(files) > 0 {
-		return fs.ErrorDirectoryNotEmpty
-	}
-	err = f.client.FilesDelete(f.mountID, f.fullPath(dir))
-	if err != nil {
-		return translateErrorsDir(err)
-	}
-	return nil
-}
-
-// Copy copies a remote Object to the given path
-func (f *Fs) Copy(src fs.Object, remote string) (fs.Object, error) {
-	dstFullPath := f.fullPath(remote)
-	dstDir := dir(dstFullPath)
-	err := f.mkdir(dstDir)
-	if err != nil {
-		return nil, fs.ErrorCantCopy
-	}
-	err = f.client.FilesCopy((src.(*Object)).fs.mountID,
-		(src.(*Object)).fs.fullPath((src.(*Object)).remote),
-		f.mountID, dstFullPath)
-	if err != nil {
-		return nil, fs.ErrorCantCopy
-	}
-	return f.NewObject(remote)
-}
-
-// Move moves a remote Object to the given path
-func (f *Fs) Move(src fs.Object, remote string) (fs.Object, error) {
-	srcObj := src.(*Object)
-	dstFullPath := f.fullPath(remote)
-	dstDir := dir(dstFullPath)
-	err := f.mkdir(dstDir)
-	if err != nil {
-		return nil, fs.ErrorCantMove
-	}
-	err = f.client.FilesMove(srcObj.fs.mountID,
-		srcObj.fs.fullPath(srcObj.remote), f.mountID, dstFullPath)
-	if err != nil {
-		return nil, fs.ErrorCantMove
-	}
-	return f.NewObject(remote)
-}
-
-// DirMove moves a remote directory to the given path
-func (f *Fs) DirMove(src fs.Fs, srcRemote, dstRemote string) error {
-	srcFs := src.(*Fs)
-	srcFullPath := srcFs.fullPath(srcRemote)
-	dstFullPath := f.fullPath(dstRemote)
-	if srcFs.mountID == f.mountID && srcFullPath == dstFullPath {
-		return fs.ErrorDirExists
-	}
-	dstDir := dir(dstFullPath)
-	err := f.mkdir(dstDir)
-	if err != nil {
-		return fs.ErrorCantDirMove
-	}
-	err = f.client.FilesMove(srcFs.mountID, srcFullPath, f.mountID, dstFullPath)
-	if err != nil {
-		return fs.ErrorCantDirMove
-	}
-	return nil
-}
-
-// About reports space usage (with a MB precision)
-func (f *Fs) About() (*fs.Usage, error) {
-	mount, err := f.client.MountsDetails(f.mountID)
-	if err != nil {
-		return nil, err
-	}
-	return &fs.Usage{
-		Total:   fs.NewUsageValue(mount.SpaceTotal * 1024 * 1024),
-		Used:    fs.NewUsageValue(mount.SpaceUsed * 1024 * 1024),
-		Trashed: nil,
-		Other:   nil,
-		Free:    fs.NewUsageValue((mount.SpaceTotal - mount.SpaceUsed) * 1024 * 1024),
-		Objects: nil,
-	}, nil
-}
-
-// Purge purges the complete Fs
-func (f *Fs) Purge() error {
-	err := translateErrorsDir(f.client.FilesDelete(f.mountID, f.fullPath("")))
-	return err
-}
-
-// linkCreate is a Koofr API request for creating a public link
-type linkCreate struct {
-	Path string `json:"path"`
-}
-
-// link is a Koofr API response to creating a public link
-type link struct {
-	ID               string `json:"id"`
-	Name             string `json:"name"`
-	Path             string `json:"path"`
-	Counter          int64  `json:"counter"`
-	URL              string `json:"url"`
-	ShortURL         string `json:"shortUrl"`
-	Hash             string `json:"hash"`
-	Host             string `json:"host"`
-	HasPassword      bool   `json:"hasPassword"`
-	Password         string `json:"password"`
-	ValidFrom        int64  `json:"validFrom"`
-	ValidTo          int64  `json:"validTo"`
-	PasswordRequired bool   `json:"passwordRequired"`
-}
-
-// createLink makes a Koofr API call to create a public link
-func createLink(c *koofrclient.KoofrClient, mountID string, path string) (*link, error) {
-	linkCreate := linkCreate{
-		Path: path,
-	}
-	linkData := link{}
-
-	request := httpclient.RequestData{
-		Method:         "POST",
-		Path:           "/api/v2/mounts/" + mountID + "/links",
-		ExpectedStatus: []int{http.StatusOK, http.StatusCreated},
-		ReqEncoding:    httpclient.EncodingJSON,
-		ReqValue:       linkCreate,
-		RespEncoding:   httpclient.EncodingJSON,
-		RespValue:      &linkData,
-	}
-
-	_, err := c.Request(&request)
-	if err != nil {
-		return nil, err
-	}
-	return &linkData, nil
-}
-
-// PublicLink creates a public link to the remote path
-func (f *Fs) PublicLink(remote string) (string, error) {
-	linkData, err := createLink(f.client, f.mountID, f.fullPath(remote))
-	if err != nil {
-		return "", translateErrorsDir(err)
-	}
-	return linkData.ShortURL, nil
-}
--- a/backend/koofr/koofr_test.go
+++ b/backend/koofr/koofr_test.go
@@ -1,14 +0,0 @@
-package koofr_test
-
-import (
-	"testing"
-
-	"github.com/ncw/rclone/fstest/fstests"
-)
-
-// TestIntegration runs integration tests against the remote
-func TestIntegration(t *testing.T) {
-	fstests.Run(t, &fstests.Opt{
-		RemoteName: "TestKoofr:",
-	})
-}
--- a/backend/local/about_unix.go
+++ b/backend/local/about_unix.go
@@ -16,7 +16,7 @@ func (f *Fs) About() (*fs.Usage, error) {
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to read disk usage")
 	}
-	bs := int64(s.Bsize) // nolint: unconvert
+	bs := int64(s.Bsize)
 	usage := &fs.Usage{
 		Total: fs.NewUsageValue(bs * int64(s.Blocks)),         // quota of bytes that can be used
 		Used:  fs.NewUsageValue(bs * int64(s.Blocks-s.Bfree)), // bytes in use
--- a/backend/local/lchtimes.go
+++ b/backend/local/lchtimes.go
@@ -1,20 +0,0 @@
-// +build windows plan9
-
-package local
-
-import (
-	"time"
-)
-
-const haveLChtimes = false
-
-// lChtimes changes the access and modification times of the named
-// link, similar to the Unix utime() or utimes() functions.
-//
-// The underlying filesystem may truncate or round the values to a
-// less precise time unit.
-// If there is an error, it will be of type *PathError.
-func lChtimes(name string, atime time.Time, mtime time.Time) error {
-	// Does nothing
-	return nil
-}
--- a/backend/local/lchtimes_unix.go
+++ b/backend/local/lchtimes_unix.go
@@ -1,28 +0,0 @@
-// +build !windows,!plan9
-
-package local
-
-import (
-	"os"
-	"time"
-
-	"golang.org/x/sys/unix"
-)
-
-const haveLChtimes = true
-
-// lChtimes changes the access and modification times of the named
-// link, similar to the Unix utime() or utimes() functions.
-//
-// The underlying filesystem may truncate or round the values to a
-// less precise time unit.
-// If there is an error, it will be of type *PathError.
-func lChtimes(name string, atime time.Time, mtime time.Time) error {
-	var utimes [2]unix.Timespec
-	utimes[0] = unix.NsecToTimespec(atime.UnixNano())
-	utimes[1] = unix.NsecToTimespec(mtime.UnixNano())
-	if e := unix.UtimesNanoAt(unix.AT_FDCWD, name, utimes[0:], unix.AT_SYMLINK_NOFOLLOW); e != nil {
-		return &os.PathError{Op: "lchtimes", Path: name, Err: e}
-	}
-	return nil
-}
--- a/backend/local/local.go
+++ b/backend/local/local.go
@@ -2,7 +2,6 @@
 package local

 import (
-	"bytes"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -17,19 +16,23 @@ import (
 	"unicode/utf8"

 	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/accounting"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
-	"github.com/ncw/rclone/fs/fserrors"
+	"github.com/ncw/rclone/fs/config"
+	"github.com/ncw/rclone/fs/config/flags"
 	"github.com/ncw/rclone/fs/hash"
-	"github.com/ncw/rclone/lib/file"
 	"github.com/ncw/rclone/lib/readers"
 	"github.com/pkg/errors"
+	"google.golang.org/appengine/log"
+)
+
+var (
+	followSymlinks = flags.BoolP("copy-links", "L", false, "Follow symlinks and copy the pointed to item.")
+	skipSymlinks   = flags.BoolP("skip-links", "", false, "Don't warn about skipped symlinks.")
+	noUTFNorm      = flags.BoolP("local-no-unicode-normalization", "", false, "Don't apply unicode normalization to paths and filenames")
+	noCheckUpdated = flags.BoolP("local-no-check-updated", "", false, "Don't check to see if the files change during upload")
 )

 // Constants
 const devUnset = 0xdeadbeefcafebabe // a device id meaning it is unset
-const linkSuffix = ".rclonelink"    // The suffix added to a translated symbolic link

 // Register with Fs
 func init() {
@@ -38,90 +41,29 @@ func init() {
 		Description: "Local Disk",
 		NewFs:       NewFs,
 		Options: []fs.Option{{
-			Name: "nounc",
-			Help: "Disable UNC (long path names) conversion on Windows",
+			Name:     "nounc",
+			Help:     "Disable UNC (long path names) conversion on Windows",
+			Optional: true,
 			Examples: []fs.OptionExample{{
 				Value: "true",
 				Help:  "Disables long file names",
 			}},
-		}, {
-			Name:     "copy_links",
-			Help:     "Follow symlinks and copy the pointed to item.",
-			Default:  false,
-			NoPrefix: true,
-			ShortOpt: "L",
-			Advanced: true,
-		}, {
-			Name:     "links",
-			Help:     "Translate symlinks to/from regular files with a '" + linkSuffix + "' extension",
-			Default:  false,
-			NoPrefix: true,
-			ShortOpt: "l",
-			Advanced: true,
-		}, {
-			Name: "skip_links",
-			Help: `Don't warn about skipped symlinks.
-This flag disables warning messages on skipped symlinks or junction
-points, as you explicitly acknowledge that they should be skipped.`,
-			Default:  false,
-			NoPrefix: true,
-			Advanced: true,
-		}, {
-			Name: "no_unicode_normalization",
-			Help: `Don't apply unicode normalization to paths and filenames (Deprecated)
-
-This flag is deprecated now.  Rclone no longer normalizes unicode file
-names, but it compares them with unicode normalization in the sync
-routine instead.`,
-			Default:  false,
-			Advanced: true,
-		}, {
-			Name: "no_check_updated",
-			Help: `Don't check to see if the files change during upload
-
-Normally rclone checks the size and modification time of files as they
-are being uploaded and aborts with a message which starts "can't copy
- source file is being updated" if the file changes during upload.
-
-However on some file systems this modification time check may fail (eg
-[Glusterfs #2206](https://github.com/ncw/rclone/issues/2206)) so this
-check can be disabled with this flag.`,
-			Default:  false,
-			Advanced: true,
-		}, {
-			Name:     "one_file_system",
-			Help:     "Don't cross filesystem boundaries (unix/macOS only).",
-			Default:  false,
-			NoPrefix: true,
-			ShortOpt: "x",
-			Advanced: true,
 		}},
 	}
 	fs.Register(fsi)
 }

-// Options defines the configuration for this backend
-type Options struct {
-	FollowSymlinks    bool `config:"copy_links"`
-	TranslateSymlinks bool `config:"links"`
-	SkipSymlinks      bool `config:"skip_links"`
-	NoUTFNorm         bool `config:"no_unicode_normalization"`
-	NoCheckUpdated    bool `config:"no_check_updated"`
-	NoUNC             bool `config:"nounc"`
-	OneFileSystem     bool `config:"one_file_system"`
-}
-
 // Fs represents a local filesystem rooted at root
 type Fs struct {
 	name        string              // the name of the remote
 	root        string              // The root directory (OS path)
-	opt         Options             // parsed config options
 	features    *fs.Features        // optional features
 	dev         uint64              // device number of root node
 	precisionOk sync.Once           // Whether we need to read the precision
 	precision   time.Duration       // precision of local filesystem
 	wmu         sync.Mutex          // used for locking access to 'warned'.
 	warned      map[string]struct{} // whether we have warned about this string
+	nounc       bool                // Skip UNC conversion on Windows
 	// do os.Lstat or os.Stat
 	lstat          func(name string) (os.FileInfo, error)
 	dirNames       *mapper    // directory name mapping
@@ -130,40 +72,30 @@ type Fs struct {

 // Object represents a local filesystem object
 type Object struct {
-	fs             *Fs    // The Fs this object is part of
-	remote         string // The remote path - properly UTF-8 encoded - for rclone
-	path           string // The local path - may not be properly UTF-8 encoded - for OS
-	size           int64  // file metadata - always present
-	mode           os.FileMode
-	modTime        time.Time
-	hashes         map[hash.Type]string // Hashes
-	translatedLink bool                 // Is this object a translated link
+	fs      *Fs    // The Fs this object is part of
+	remote  string // The remote path - properly UTF-8 encoded - for rclone
+	path    string // The local path - may not be properly UTF-8 encoded - for OS
+	size    int64  // file metadata - always present
+	mode    os.FileMode
+	modTime time.Time
+	hashes  map[hash.Type]string // Hashes
 }

 // ------------------------------------------------------------

-var errLinksAndCopyLinks = errors.New("can't use -l/--links with -L/--copy-links")
-
 // NewFs constructs an Fs from the path
-func NewFs(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
-	}
-	if opt.TranslateSymlinks && opt.FollowSymlinks {
-		return nil, errLinksAndCopyLinks
-	}
-
-	if opt.NoUTFNorm {
-		fs.Errorf(nil, "The --local-no-unicode-normalization flag is deprecated and will be removed")
+func NewFs(name, root string) (fs.Fs, error) {
+	var err error
+
+	if *noUTFNorm {
+		log.Errorf(nil, "The --local-no-unicode-normalization flag is deprecated and will be removed")
 	}

+	nounc := config.FileGet(name, "nounc")
 	f := &Fs{
 		name:     name,
-		opt:      *opt,
 		warned:   make(map[string]struct{}),
+		nounc:    nounc == "true",
 		dev:      devUnset,
 		lstat:    os.Lstat,
 		dirNames: newMapper(),
@@ -173,38 +105,24 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 		CaseInsensitive:         f.caseInsensitive(),
 		CanHaveEmptyDirectories: true,
 	}).Fill(f)
-	if opt.FollowSymlinks {
+	if *followSymlinks {
 		f.lstat = os.Stat
 	}

 	// Check to see if this points to a file
 	fi, err := f.lstat(f.root)
 	if err == nil {
-		f.dev = readDevice(fi, f.opt.OneFileSystem)
+		f.dev = readDevice(fi)
 	}
-	if err == nil && f.isRegular(fi.Mode()) {
+	if err == nil && fi.Mode().IsRegular() {
 		// It is a file, so use the parent as the root
-		f.root = filepath.Dir(f.root)
+		f.root, _ = getDirFile(f.root)
 		// return an error with an fs which points to the parent
 		return f, fs.ErrorIsFile
 	}
 	return f, nil
 }

-// Determine whether a file is a 'regular' file,
-// Symlinks are regular files, only if the TranslateSymlink
-// option is in-effect
-func (f *Fs) isRegular(mode os.FileMode) bool {
-	if !f.opt.TranslateSymlinks {
-		return mode.IsRegular()
-	}
-
-	// fi.Mode().IsRegular() tests that all mode bits are zero
-	// Since symlinks are accepted, test that all other bits are zero,
-	// except the symlink bit
-	return mode&os.ModeType&^os.ModeSymlink == 0
-}
-
 // Name of the remote (as passed into NewFs)
 func (f *Fs) Name() string {
 	return f.name
@@ -225,48 +143,28 @@ func (f *Fs) Features() *fs.Features {
 	return f.features
 }

-// caseInsensitive returns whether the remote is case insensitive or not
+// caseInsenstive returns whether the remote is case insensitive or not
 func (f *Fs) caseInsensitive() bool {
 	// FIXME not entirely accurate since you can have case
-	// sensitive Fses on darwin and case insensitive Fses on linux.
+	// sensitive Fses on darwin and case insenstive Fses on linux.
 	// Should probably check but that would involve creating a
 	// file in the remote to be most accurate which probably isn't
 	// desirable.
 	return runtime.GOOS == "windows" || runtime.GOOS == "darwin"
 }

-// translateLink checks whether the remote is a translated link
-// and returns a new path, removing the suffix as needed,
-// It also returns whether this is a translated link at all
-//
-// for regular files, dstPath is returned unchanged
-func translateLink(remote, dstPath string) (newDstPath string, isTranslatedLink bool) {
-	isTranslatedLink = strings.HasSuffix(remote, linkSuffix)
-	newDstPath = strings.TrimSuffix(dstPath, linkSuffix)
-	return newDstPath, isTranslatedLink
-}
-
 // newObject makes a half completed Object
 //
 // if dstPath is empty then it is made from remote
 func (f *Fs) newObject(remote, dstPath string) *Object {
-	translatedLink := false
-
 	if dstPath == "" {
 		dstPath = f.cleanPath(filepath.Join(f.root, remote))
 	}
 	remote = f.cleanRemote(remote)
-
-	if f.opt.TranslateSymlinks {
-		// Possibly receive a new name for dstPath
-		dstPath, translatedLink = translateLink(remote, dstPath)
-	}
-
 	return &Object{
-		fs:             f,
-		remote:         remote,
-		path:           dstPath,
-		translatedLink: translatedLink,
+		fs:     f,
+		remote: remote,
+		path:   dstPath,
 	}
 }

@@ -288,11 +186,6 @@ func (f *Fs) newObjectWithInfo(remote, dstPath string, info os.FileInfo) (fs.Obj
 			}
 			return nil, err
 		}
-		// Handle the odd case, that a symlink was specified by name without the link suffix
-		if o.fs.opt.TranslateSymlinks && o.mode&os.ModeSymlink != 0 && !o.translatedLink {
-			return nil, fs.ErrorObjectNotFound
-		}
-
 	}
 	if o.mode.IsDir() {
 		return nil, errors.Wrapf(fs.ErrorNotAFile, "%q", remote)
@@ -316,7 +209,6 @@ func (f *Fs) NewObject(remote string) (fs.Object, error) {
 // This should return ErrDirNotFound if the directory isn't
 // found.
 func (f *Fs) List(dir string) (entries fs.DirEntries, err error) {
-
 	dir = f.dirNames.Load(dir)
 	fsDirPath := f.cleanPath(filepath.Join(f.root, dir))
 	remote := f.cleanRemote(dir)
@@ -351,15 +243,8 @@ func (f *Fs) List(dir string) (entries fs.DirEntries, err error) {
 			newRemote := path.Join(remote, name)
 			newPath := filepath.Join(fsDirPath, name)
 			// Follow symlinks if required
-			if f.opt.FollowSymlinks && (mode&os.ModeSymlink) != 0 {
+			if *followSymlinks && (mode&os.ModeSymlink) != 0 {
 				fi, err = os.Stat(newPath)
-				if os.IsNotExist(err) {
-					// Skip bad symlinks
-					err = fserrors.NoRetryError(errors.Wrap(err, "symlink"))
-					fs.Errorf(newRemote, "Listing error: %v", err)
-					accounting.Stats.Error(err)
-					continue
-				}
 				if err != nil {
 					return nil, err
 				}
@@ -368,15 +253,11 @@ func (f *Fs) List(dir string) (entries fs.DirEntries, err error) {
 			if fi.IsDir() {
 				// Ignore directories which are symlinks.  These are junction points under windows which
 				// are kind of a souped up symlink. Unix doesn't have directories which are symlinks.
-				if (mode&os.ModeSymlink) == 0 && f.dev == readDevice(fi, f.opt.OneFileSystem) {
+				if (mode&os.ModeSymlink) == 0 && f.dev == readDevice(fi) {
 					d := fs.NewDir(f.dirNames.Save(newRemote, f.cleanRemote(newRemote)), fi.ModTime())
 					entries = append(entries, d)
 				}
 			} else {
-				// Check whether this link should be translated
-				if f.opt.TranslateSymlinks && fi.Mode()&os.ModeSymlink != 0 {
-					newRemote += linkSuffix
-				}
 				fso, err := f.newObjectWithInfo(newRemote, newPath, fi)
 				if err != nil {
 					return nil, err
@@ -476,7 +357,7 @@ func (f *Fs) Mkdir(dir string) error {
 		if err != nil {
 			return err
 		}
-		f.dev = readDevice(fi, f.opt.OneFileSystem)
+		f.dev = readDevice(fi)
 	}
 	return nil
 }
@@ -590,7 +471,7 @@ func (f *Fs) Move(src fs.Object, remote string) (fs.Object, error) {
 		// OK
 	} else if err != nil {
 		return nil, err
-	} else if !dstObj.fs.isRegular(dstObj.mode) {
+	} else if !dstObj.mode.IsRegular() {
 		// It isn't a file
 		return nil, errors.New("can't move file onto non-file")
 	}
@@ -649,7 +530,7 @@ func (f *Fs) DirMove(src fs.Fs, srcRemote, dstRemote string) error {
 	}

 	// Create parent of destination
-	dstParentPath := filepath.Dir(dstPath)
+	dstParentPath, _ := getDirFile(dstPath)
 	err = os.MkdirAll(dstParentPath, 0777)
 	if err != nil {
 		return err
@@ -712,13 +593,7 @@ func (o *Object) Hash(r hash.Type) (string, error) {
 	o.fs.objectHashesMu.Unlock()

 	if !o.modTime.Equal(oldtime) || oldsize != o.size || hashes == nil {
-		var in io.ReadCloser
-
-		if !o.translatedLink {
-			in, err = file.Open(o.path)
-		} else {
-			in, err = o.openTranslatedLink(0, -1)
-		}
+		in, err := os.Open(o.path)
 		if err != nil {
 			return "", errors.Wrap(err, "hash: failed to open")
 		}
@@ -749,12 +624,7 @@ func (o *Object) ModTime() time.Time {

 // SetModTime sets the modification time of the local fs object
 func (o *Object) SetModTime(modTime time.Time) error {
-	var err error
-	if o.translatedLink {
-		err = lChtimes(o.path, modTime, modTime)
-	} else {
-		err = os.Chtimes(o.path, modTime, modTime)
-	}
+	err := os.Chtimes(o.path, modTime, modTime)
 	if err != nil {
 		return err
 	}
@@ -772,8 +642,8 @@ func (o *Object) Storable() bool {
 		}
 	}
 	mode := o.mode
-	if mode&os.ModeSymlink != 0 && !o.fs.opt.TranslateSymlinks {
-		if !o.fs.opt.SkipSymlinks {
+	if mode&os.ModeSymlink != 0 {
+		if !*skipSymlinks {
 			fs.Logf(o, "Can't follow symlink without -L/--copy-links")
 		}
 		return false
@@ -798,7 +668,7 @@ type localOpenFile struct {

 // Read bytes from the object - see io.Reader
 func (file *localOpenFile) Read(p []byte) (n int, err error) {
-	if !file.o.fs.opt.NoCheckUpdated {
+	if !*noCheckUpdated {
 		// Check if file has the same size and modTime
 		fi, err := file.fd.Stat()
 		if err != nil {
@@ -833,16 +703,6 @@ func (file *localOpenFile) Close() (err error) {
 	return err
 }

-// Returns a ReadCloser() object that contains the contents of a symbolic link
-func (o *Object) openTranslatedLink(offset, limit int64) (lrc io.ReadCloser, err error) {
-	// Read the link and return the destination  it as the contents of the object
-	linkdst, err := os.Readlink(o.path)
-	if err != nil {
-		return nil, err
-	}
-	return readers.NewLimitedReadCloser(ioutil.NopCloser(strings.NewReader(linkdst[offset:])), limit), nil
-}
-
 // Open an object for read
 func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 	var offset, limit int64 = 0, -1
@@ -862,12 +722,7 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 		}
 	}

-	// Handle a translated link
-	if o.translatedLink {
-		return o.openTranslatedLink(offset, limit)
-	}
-
-	fd, err := file.Open(o.path)
+	fd, err := os.Open(o.path)
 	if err != nil {
 		return
 	}
@@ -894,23 +749,12 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {

 // mkdirAll makes all the directories needed to store the object
 func (o *Object) mkdirAll() error {
-	dir := filepath.Dir(o.path)
+	dir, _ := getDirFile(o.path)
 	return os.MkdirAll(dir, 0777)
 }

-type nopWriterCloser struct {
-	*bytes.Buffer
-}
-
-func (nwc nopWriterCloser) Close() error {
-	// noop
-	return nil
-}
-
 // Update the object from in with modTime and size
 func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
-	var out io.WriteCloser
-
 	hashes := hash.Supported
 	for _, option := range options {
 		switch x := option.(type) {
@@ -924,23 +768,9 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 		return err
 	}

-	var symlinkData bytes.Buffer
-	// If the object is a regular file, create it.
-	// If it is a translated link, just read in the contents, and
-	// then create a symlink
-	if !o.translatedLink {
-		f, err := file.OpenFile(o.path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
-		if err != nil {
-			return err
-		}
-		// Pre-allocate the file for performance reasons
-		err = preAllocate(src.Size(), f)
-		if err != nil {
-			fs.Debugf(o, "Failed to pre-allocate: %v", err)
-		}
-		out = f
-	} else {
-		out = nopWriterCloser{&symlinkData}
+	out, err := os.OpenFile(o.path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
+	if err != nil {
+		return err
 	}

 	// Calculate the hash of the object we are reading as we go along
@@ -955,26 +785,6 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 	if err == nil {
 		err = closeErr
 	}
-
-	if o.translatedLink {
-		if err == nil {
-			// Remove any current symlink or file, if one exists
-			if _, err := os.Lstat(o.path); err == nil {
-				if removeErr := os.Remove(o.path); removeErr != nil {
-					fs.Errorf(o, "Failed to remove previous file: %v", removeErr)
-					return removeErr
-				}
-			}
-			// Use the contents for the copied object to create a symlink
-			err = os.Symlink(symlinkData.String(), o.path)
-		}
-
-		// only continue if symlink creation succeeded
-		if err != nil {
-			return err
-		}
-	}
-
 	if err != nil {
 		fs.Logf(o, "Removing partially written file on error: %v", err)
 		if removeErr := os.Remove(o.path); removeErr != nil {
@@ -1027,6 +837,17 @@ func (o *Object) Remove() error {
 	return remove(o.path)
 }

+// Return the directory and file from an OS path. Assumes
+// os.PathSeparator is used.
+func getDirFile(s string) (string, string) {
+	i := strings.LastIndex(s, string(os.PathSeparator))
+	dir, file := s[:i], s[i+1:]
+	if dir == "" {
+		dir = string(os.PathSeparator)
+	}
+	return dir, file
+}
+
 // cleanPathFragment cleans an OS path fragment which is part of a
 // bigger path and not necessarily absolute
 func cleanPathFragment(s string) string {
@@ -1057,7 +878,7 @@ func (f *Fs) cleanPath(s string) string {
 				s = s2
 			}
 		}
-		if !f.opt.NoUNC {
+		if !f.nounc {
 			// Convert to UNC
 			s = uncPath(s)
 		}
--- a/backend/local/local_internal_test.go
+++ b/backend/local/local_internal_test.go
@@ -1,19 +1,13 @@
 package local

 import (
-	"io/ioutil"
 	"os"
 	"path"
-	"path/filepath"
-	"runtime"
 	"testing"
 	"time"

-	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/config/configmap"
 	"github.com/ncw/rclone/fs/hash"
 	"github.com/ncw/rclone/fstest"
-	"github.com/ncw/rclone/lib/file"
 	"github.com/ncw/rclone/lib/readers"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -44,17 +38,14 @@ func TestUpdatingCheck(t *testing.T) {
 	filePath := "sub dir/local test"
 	r.WriteFile(filePath, "content", time.Now())

-	fd, err := file.Open(path.Join(r.LocalName, filePath))
+	fd, err := os.Open(path.Join(r.LocalName, filePath))
 	if err != nil {
 		t.Fatalf("failed opening file %q: %v", filePath, err)
 	}
-	defer func() {
-		require.NoError(t, fd.Close())
-	}()

 	fi, err := fd.Stat()
 	require.NoError(t, err)
-	o := &Object{size: fi.Size(), modTime: fi.ModTime(), fs: &Fs{}}
+	o := &Object{size: fi.Size(), modTime: fi.ModTime()}
 	wrappedFd := readers.NewLimitedReadCloser(fd, -1)
 	hash, err := hash.NewMultiHasherTypes(hash.Supported)
 	require.NoError(t, err)
@@ -74,115 +65,14 @@ func TestUpdatingCheck(t *testing.T) {
 	require.Errorf(t, err, "can't copy - source file is being updated")

 	// turn the checking off and try again
-	in.o.fs.opt.NoCheckUpdated = true
+
+	*noCheckUpdated = true
+	defer func() {
+		*noCheckUpdated = false
+	}()

 	r.WriteFile(filePath, "content updated", time.Now())
 	_, err = in.Read(buf)
 	require.NoError(t, err)

 }
-
-func TestSymlink(t *testing.T) {
-	r := fstest.NewRun(t)
-	defer r.Finalise()
-	f := r.Flocal.(*Fs)
-	dir := f.root
-
-	// Write a file
-	modTime1 := fstest.Time("2001-02-03T04:05:10.123123123Z")
-	file1 := r.WriteFile("file.txt", "hello", modTime1)
-
-	// Write a symlink
-	modTime2 := fstest.Time("2002-02-03T04:05:10.123123123Z")
-	symlinkPath := filepath.Join(dir, "symlink.txt")
-	require.NoError(t, os.Symlink("file.txt", symlinkPath))
-	require.NoError(t, lChtimes(symlinkPath, modTime2, modTime2))
-
-	// Object viewed as symlink
-	file2 := fstest.NewItem("symlink.txt"+linkSuffix, "file.txt", modTime2)
-	if runtime.GOOS == "windows" {
-		file2.Size = 0 // symlinks are 0 length under Windows
-	}
-
-	// Object viewed as destination
-	file2d := fstest.NewItem("symlink.txt", "hello", modTime1)
-
-	// Check with no symlink flags
-	fstest.CheckItems(t, r.Flocal, file1)
-	fstest.CheckItems(t, r.Fremote)
-
-	// Set fs into "-L" mode
-	f.opt.FollowSymlinks = true
-	f.opt.TranslateSymlinks = false
-	f.lstat = os.Stat
-
-	fstest.CheckItems(t, r.Flocal, file1, file2d)
-	fstest.CheckItems(t, r.Fremote)
-
-	// Set fs into "-l" mode
-	f.opt.FollowSymlinks = false
-	f.opt.TranslateSymlinks = true
-	f.lstat = os.Lstat
-
-	fstest.CheckListingWithPrecision(t, r.Flocal, []fstest.Item{file1, file2}, nil, fs.ModTimeNotSupported)
-	if haveLChtimes {
-		fstest.CheckItems(t, r.Flocal, file1, file2)
-	}
-
-	// Create a symlink
-	modTime3 := fstest.Time("2002-03-03T04:05:10.123123123Z")
-	file3 := r.WriteObjectTo(r.Flocal, "symlink2.txt"+linkSuffix, "file.txt", modTime3, false)
-	if runtime.GOOS == "windows" {
-		file3.Size = 0 // symlinks are 0 length under Windows
-	}
-	fstest.CheckListingWithPrecision(t, r.Flocal, []fstest.Item{file1, file2, file3}, nil, fs.ModTimeNotSupported)
-	if haveLChtimes {
-		fstest.CheckItems(t, r.Flocal, file1, file2, file3)
-	}
-
-	// Check it got the correct contents
-	symlinkPath = filepath.Join(dir, "symlink2.txt")
-	fi, err := os.Lstat(symlinkPath)
-	require.NoError(t, err)
-	assert.False(t, fi.Mode().IsRegular())
-	linkText, err := os.Readlink(symlinkPath)
-	require.NoError(t, err)
-	assert.Equal(t, "file.txt", linkText)
-
-	// Check that NewObject gets the correct object
-	o, err := r.Flocal.NewObject("symlink2.txt" + linkSuffix)
-	require.NoError(t, err)
-	assert.Equal(t, "symlink2.txt"+linkSuffix, o.Remote())
-	if runtime.GOOS != "windows" {
-		assert.Equal(t, int64(8), o.Size())
-	}
-
-	// Check that NewObject doesn't see the non suffixed version
-	_, err = r.Flocal.NewObject("symlink2.txt")
-	require.Equal(t, fs.ErrorObjectNotFound, err)
-
-	// Check reading the object
-	in, err := o.Open()
-	require.NoError(t, err)
-	contents, err := ioutil.ReadAll(in)
-	require.NoError(t, err)
-	require.Equal(t, "file.txt", string(contents))
-	require.NoError(t, in.Close())
-
-	// Check reading the object with range
-	in, err = o.Open(&fs.RangeOption{Start: 2, End: 5})
-	require.NoError(t, err)
-	contents, err = ioutil.ReadAll(in)
-	require.NoError(t, err)
-	require.Equal(t, "file.txt"[2:5+1], string(contents))
-	require.NoError(t, in.Close())
-}
-
-func TestSymlinkError(t *testing.T) {
-	m := configmap.Simple{
-		"links":      "true",
-		"copy_links": "true",
-	}
-	_, err := NewFs("local", "/", m)
-	assert.Equal(t, errLinksAndCopyLinks, err)
-}
--- a/backend/local/preallocate_other.go
+++ b/backend/local/preallocate_other.go
@@ -1,10 +0,0 @@
-//+build !windows,!linux
-
-package local
-
-import "os"
-
-// preAllocate the file for performance reasons
-func preAllocate(size int64, out *os.File) error {
-	return nil
-}
--- a/backend/local/preallocate_unix.go
+++ b/backend/local/preallocate_unix.go
@@ -1,22 +0,0 @@
-//+build linux
-
-package local
-
-import (
-	"os"
-
-	"golang.org/x/sys/unix"
-)
-
-// preAllocate the file for performance reasons
-func preAllocate(size int64, out *os.File) error {
-	if size <= 0 {
-		return nil
-	}
-	err := unix.Fallocate(int(out.Fd()), unix.FALLOC_FL_KEEP_SIZE, 0, size)
-	// FIXME could be doing something here
-	// if err == unix.ENOSPC {
-	// 	log.Printf("No space")
-	// }
-	return err
-}
--- a/backend/local/preallocate_windows.go
+++ b/backend/local/preallocate_windows.go
@@ -1,79 +0,0 @@
-//+build windows
-
-package local
-
-import (
-	"os"
-	"syscall"
-	"unsafe"
-
-	"github.com/pkg/errors"
-	"golang.org/x/sys/windows"
-)
-
-var (
-	ntdll                        = windows.NewLazySystemDLL("ntdll.dll")
-	ntQueryVolumeInformationFile = ntdll.NewProc("NtQueryVolumeInformationFile")
-	ntSetInformationFile         = ntdll.NewProc("NtSetInformationFile")
-)
-
-type fileAllocationInformation struct {
-	AllocationSize uint64
-}
-
-type fileFsSizeInformation struct {
-	TotalAllocationUnits     uint64
-	AvailableAllocationUnits uint64
-	SectorsPerAllocationUnit uint32
-	BytesPerSector           uint32
-}
-
-type ioStatusBlock struct {
-	Status, Information uintptr
-}
-
-// preAllocate the file for performance reasons
-func preAllocate(size int64, out *os.File) error {
-	if size <= 0 {
-		return nil
-	}
-
-	var (
-		iosb       ioStatusBlock
-		fsSizeInfo fileFsSizeInformation
-		allocInfo  fileAllocationInformation
-	)
-
-	// Query info about the block sizes on the file system
-	_, _, e1 := ntQueryVolumeInformationFile.Call(
-		uintptr(out.Fd()),
-		uintptr(unsafe.Pointer(&iosb)),
-		uintptr(unsafe.Pointer(&fsSizeInfo)),
-		uintptr(unsafe.Sizeof(fsSizeInfo)),
-		uintptr(3), // FileFsSizeInformation
-	)
-	if e1 != nil && e1 != syscall.Errno(0) {
-		return errors.Wrap(e1, "preAllocate NtQueryVolumeInformationFile failed")
-	}
-
-	// Calculate the allocation size
-	clusterSize := uint64(fsSizeInfo.BytesPerSector) * uint64(fsSizeInfo.SectorsPerAllocationUnit)
-	if clusterSize <= 0 {
-		return errors.Errorf("preAllocate clusterSize %d <= 0", clusterSize)
-	}
-	allocInfo.AllocationSize = (1 + uint64(size-1)/clusterSize) * clusterSize
-
-	// Ask for the allocation
-	_, _, e1 = ntSetInformationFile.Call(
-		uintptr(out.Fd()),
-		uintptr(unsafe.Pointer(&iosb)),
-		uintptr(unsafe.Pointer(&allocInfo)),
-		uintptr(unsafe.Sizeof(allocInfo)),
-		uintptr(19), // FileAllocationInformation
-	)
-	if e1 != nil && e1 != syscall.Errno(0) {
-		return errors.Wrap(e1, "preAllocate NtSetInformationFile failed")
-	}
-
-	return nil
-}
--- a/backend/local/read_device_other.go
+++ b/backend/local/read_device_other.go
@@ -8,6 +8,6 @@ import "os"

 // readDevice turns a valid os.FileInfo into a device number,
 // returning devUnset if it fails.
-func readDevice(fi os.FileInfo, oneFileSystem bool) uint64 {
+func readDevice(fi os.FileInfo) uint64 {
 	return devUnset
 }
--- a/backend/local/read_device_unix.go
+++ b/backend/local/read_device_unix.go
@@ -9,12 +9,17 @@ import (
 	"syscall"

 	"github.com/ncw/rclone/fs"
+	"github.com/ncw/rclone/fs/config/flags"
+)
+
+var (
+	oneFileSystem = flags.BoolP("one-file-system", "x", false, "Don't cross filesystem boundaries.")
 )

 // readDevice turns a valid os.FileInfo into a device number,
 // returning devUnset if it fails.
-func readDevice(fi os.FileInfo, oneFileSystem bool) uint64 {
-	if !oneFileSystem {
+func readDevice(fi os.FileInfo) uint64 {
+	if !*oneFileSystem {
 		return devUnset
 	}
 	statT, ok := fi.Sys().(*syscall.Stat_t)
@@ -22,5 +27,5 @@ func readDevice(fi os.FileInfo, oneFileSystem bool) uint64 {
 		fs.Debugf(fi.Name(), "Type assertion fi.Sys().(*syscall.Stat_t) failed from: %#v", fi.Sys())
 		return devUnset
 	}
-	return uint64(statT.Dev) // nolint: unconvert
+	return uint64(statT.Dev)
 }
--- a/backend/mega/mega.go
+++ b/backend/mega/mega.go
@@ -24,8 +24,8 @@ import (
 	"time"

 	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config"
+	"github.com/ncw/rclone/fs/config/flags"
 	"github.com/ncw/rclone/fs/config/obscure"
 	"github.com/ncw/rclone/fs/fshttp"
 	"github.com/ncw/rclone/fs/hash"
@@ -39,10 +39,12 @@ const (
 	minSleep      = 10 * time.Millisecond
 	maxSleep      = 2 * time.Second
 	eventWaitTime = 500 * time.Millisecond
-	decayConstant = 2 // bigger for slower decay, exponential
+	decayConstant = 2    // bigger for slower decay, exponential
+	useTrash      = true // FIXME make configurable - rclone global
 )

 var (
+	megaDebug   = flags.BoolP("mega-debug", "", false, "If set then output more debug from mega.")
 	megaCacheMu sync.Mutex                // mutex for the below
 	megaCache   = map[string]*mega.Mega{} // cache logged in Mega's by user
 )
@@ -56,49 +58,23 @@ func init() {
 		Options: []fs.Option{{
 			Name:     "user",
 			Help:     "User name",
-			Required: true,
+			Optional: true,
 		}, {
 			Name:       "pass",
 			Help:       "Password.",
-			Required:   true,
+			Optional:   true,
 			IsPassword: true,
-		}, {
-			Name: "debug",
-			Help: `Output more debug from Mega.
-
-If this flag is set (along with -vv) it will print further debugging
-information from the mega backend.`,
-			Default:  false,
-			Advanced: true,
-		}, {
-			Name: "hard_delete",
-			Help: `Delete files permanently rather than putting them into the trash.
-
-Normally the mega backend will put all deletions into the trash rather
-than permanently deleting them.  If you specify this then rclone will
-permanently delete objects instead.`,
-			Default:  false,
-			Advanced: true,
 		}},
 	})
 }

-// Options defines the configuration for this backend
-type Options struct {
-	User       string `config:"user"`
-	Pass       string `config:"pass"`
-	Debug      bool   `config:"debug"`
-	HardDelete bool   `config:"hard_delete"`
-}
-
 // Fs represents a remote mega
 type Fs struct {
 	name       string       // name of this remote
 	root       string       // the path we are working on
-	opt        Options      // parsed config options
 	features   *fs.Features // optional features
 	srv        *mega.Mega   // the connection to the server
-	pacer      *fs.Pacer    // pacer for API calls
+	pacer      *pacer.Pacer // pacer for API calls
 	rootNodeMu sync.Mutex   // mutex for _rootNode
 	_rootNode  *mega.Node   // root node - call findRoot to use this
 	mkdirMu    sync.Mutex   // used to serialize calls to mkdir / rmdir
@@ -169,16 +145,12 @@ func (f *Fs) readMetaDataForPath(remote string) (info *mega.Node, err error) {
 }

 // NewFs constructs an Fs from the path, container:path
-func NewFs(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
-	}
-	if opt.Pass != "" {
+func NewFs(name, root string) (fs.Fs, error) {
+	user := config.FileGet(name, "user")
+	pass := config.FileGet(name, "pass")
+	if pass != "" {
 		var err error
-		opt.Pass, err = obscure.Reveal(opt.Pass)
+		pass, err = obscure.Reveal(pass)
 		if err != nil {
 			return nil, errors.Wrap(err, "couldn't decrypt password")
 		}
@@ -191,33 +163,32 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	// them up between different remotes.
 	megaCacheMu.Lock()
 	defer megaCacheMu.Unlock()
-	srv := megaCache[opt.User]
+	srv := megaCache[user]
 	if srv == nil {
 		srv = mega.New().SetClient(fshttp.NewClient(fs.Config))
 		srv.SetRetries(fs.Config.LowLevelRetries) // let mega do the low level retries
 		srv.SetLogger(func(format string, v ...interface{}) {
 			fs.Infof("*go-mega*", format, v...)
 		})
-		if opt.Debug {
+		if *megaDebug {
 			srv.SetDebugger(func(format string, v ...interface{}) {
 				fs.Debugf("*go-mega*", format, v...)
 			})
 		}

-		err := srv.Login(opt.User, opt.Pass)
+		err := srv.Login(user, pass)
 		if err != nil {
 			return nil, errors.Wrap(err, "couldn't login")
 		}
-		megaCache[opt.User] = srv
+		megaCache[user] = srv
 	}

 	root = parsePath(root)
 	f := &Fs{
 		name:  name,
 		root:  root,
-		opt:   *opt,
 		srv:   srv,
-		pacer: fs.NewPacer(pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
+		pacer: pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
 	}
 	f.features = (&fs.Features{
 		DuplicateFiles:          true,
@@ -225,7 +196,7 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	}).Fill(f)

 	// Find the root node and check if it is a file or not
-	_, err = f.findRoot(false)
+	_, err := f.findRoot(false)
 	switch err {
 	case nil:
 		// root node found and is a directory
@@ -497,7 +468,7 @@ func (f *Fs) List(dir string) (entries fs.DirEntries, err error) {
 // Creates from the parameters passed in a half finished Object which
 // must have setMetaData called on it
 //
-// Returns the dirNode, object, leaf and error
+// Returns the dirNode, obect, leaf and error
 //
 // Used to create new objects
 func (f *Fs) createObject(remote string, modTime time.Time, size int64) (o *Object, dirNode *mega.Node, leaf string, err error) {
@@ -523,10 +494,10 @@ func (f *Fs) createObject(remote string, modTime time.Time, size int64) (o *Obje
 // This will create a duplicate if we upload a new file without
 // checking to see if there is one already - use Put() for that.
 func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
-	existingObj, err := f.newObjectWithInfo(src.Remote(), nil)
+	exisitingObj, err := f.newObjectWithInfo(src.Remote(), nil)
 	switch err {
 	case nil:
-		return existingObj, existingObj.Update(in, src, options...)
+		return exisitingObj, exisitingObj.Update(in, src, options...)
 	case fs.ErrorObjectNotFound:
 		// Not found so create it
 		return f.PutUnchecked(in, src)
@@ -569,7 +540,7 @@ func (f *Fs) Mkdir(dir string) error {
 // deleteNode removes a file or directory, observing useTrash
 func (f *Fs) deleteNode(node *mega.Node) (err error) {
 	err = f.pacer.Call(func() (bool, error) {
-		err = f.srv.Delete(node, f.opt.HardDelete)
+		err = f.srv.Delete(node, !useTrash)
 		return shouldRetry(err)
 	})
 	return err
@@ -847,14 +818,14 @@ func (f *Fs) MergeDirs(dirs []fs.Directory) error {
 				return shouldRetry(err)
 			})
 			if err != nil {
-				return errors.Wrapf(err, "MergeDirs move failed on %q in %v", info.GetName(), srcDir)
+				return errors.Wrapf(err, "MergDirs move failed on %q in %v", info.GetName(), srcDir)
 			}
 		}
 		// rmdir (into trash) the now empty source directory
 		fs.Infof(srcDir, "removing empty directory")
 		err = f.deleteNode(srcDirNode)
 		if err != nil {
-			return errors.Wrapf(err, "MergeDirs move failed to rmdir %q", srcDir)
+			return errors.Wrapf(err, "MergDirs move failed to rmdir %q", srcDir)
 		}
 	}
 	return nil
@@ -1076,9 +1047,6 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 // The new object may have been created if an error is returned
 func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error) {
 	size := src.Size()
-	if size < 0 {
-		return errors.New("mega backend can't upload a file of unknown length")
-	}
 	//modTime := src.ModTime()
 	remote := o.Remote()

@@ -1129,7 +1097,7 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 		return errors.Wrap(err, "failed to finish upload")
 	}

-	// If the upload succeeded and the original object existed, then delete it
+	// If the upload succeded and the original object existed, then delete it
 	if o.info != nil {
 		err = o.fs.deleteNode(o.info)
 		if err != nil {
--- a/backend/onedrive/api/types.go
+++ b/backend/onedrive/api/types.go
@@ -2,16 +2,10 @@

 package api

-import (
-	"strings"
-	"time"
-)
+import "time"

 const (
 	timeFormat = `"` + time.RFC3339 + `"`
-
-	// PackageTypeOneNote is the package type value for OneNote files
-	PackageTypeOneNote = "oneNote"
 )

 // Error is returned from one drive when things go wrong
@@ -25,7 +19,7 @@ type Error struct {
 	} `json:"error"`
 }

-// Error returns a string for the error and satisfies the error interface
+// Error returns a string for the error and statistifes the error interface
 func (e *Error) Error() string {
 	out := e.ErrorInfo.Code
 	if e.ErrorInfo.InnerError.Code != "" {
@@ -35,7 +29,7 @@ func (e *Error) Error() string {
 	return out
 }

-// Check Error satisfies the error interface
+// Check Error statisfies the error interface
 var _ error = (*Error)(nil)

 // Identity represents an identity of an actor. For example, and actor
@@ -94,27 +88,9 @@ func (t *Timestamp) UnmarshalJSON(data []byte) error {
 // ItemReference groups data needed to reference a OneDrive item
 // across the service into a single structure.
 type ItemReference struct {
-	DriveID   string `json:"driveId"`   // Unique identifier for the Drive that contains the item.	Read-only.
-	ID        string `json:"id"`        // Unique identifier for the item.	Read/Write.
-	Path      string `json:"path"`      // Path that used to navigate to the item.	Read/Write.
-	DriveType string `json:"driveType"` // Type of the drive,	Read-Only
-}
-
-// RemoteItemFacet groups data needed to reference a OneDrive remote item
-type RemoteItemFacet struct {
-	ID                   string               `json:"id"`                   // The unique identifier of the item within the remote Drive. Read-only.
-	Name                 string               `json:"name"`                 // The name of the item (filename and extension). Read-write.
-	CreatedBy            IdentitySet          `json:"createdBy"`            // Identity of the user, device, and application which created the item. Read-only.
-	LastModifiedBy       IdentitySet          `json:"lastModifiedBy"`       // Identity of the user, device, and application which last modified the item. Read-only.
-	CreatedDateTime      Timestamp            `json:"createdDateTime"`      // Date and time of item creation. Read-only.
-	LastModifiedDateTime Timestamp            `json:"lastModifiedDateTime"` // Date and time the item was last modified. Read-only.
-	Folder               *FolderFacet         `json:"folder"`               // Folder metadata, if the item is a folder. Read-only.
-	File                 *FileFacet           `json:"file"`                 // File metadata, if the item is a file. Read-only.
-	Package              *PackageFacet        `json:"package"`              // If present, indicates that this item is a package instead of a folder or file. Packages are treated like files in some contexts and folders in others. Read-only.
-	FileSystemInfo       *FileSystemInfoFacet `json:"fileSystemInfo"`       // File system information on client. Read-write.
-	ParentReference      *ItemReference       `json:"parentReference"`      // Parent information, if the item has a parent. Read-write.
-	Size                 int64                `json:"size"`                 // Size of the item in bytes. Read-only.
-	WebURL               string               `json:"webUrl"`               // URL that displays the resource in the browser. Read-only.
+	DriveID string `json:"driveId"` // Unique identifier for the Drive that contains the item.	Read-only.
+	ID      string `json:"id"`      // Unique identifier for the item.	Read/Write.
+	Path    string `json:"path"`    // Path that used to navigate to the item.	Read/Write.
 }

 // FolderFacet groups folder-related data on OneDrive into a single structure
@@ -151,13 +127,6 @@ type FileSystemInfoFacet struct {
 type DeletedFacet struct {
 }

-// PackageFacet indicates that a DriveItem is the top level item
-// in a "package" or a collection of items that should be treated as a collection instead of individual items.
-// `oneNote` is the only currently defined value.
-type PackageFacet struct {
-	Type string `json:"type"`
-}
-
 // Item represents metadata for an item in OneDrive
 type Item struct {
 	ID                   string               `json:"id"`                   // The unique identifier of the item within the Drive. Read-only.
@@ -174,14 +143,12 @@ type Item struct {
 	Description          string               `json:"description"`          // Provide a user-visible description of the item. Read-write.
 	Folder               *FolderFacet         `json:"folder"`               // Folder metadata, if the item is a folder. Read-only.
 	File                 *FileFacet           `json:"file"`                 // File metadata, if the item is a file. Read-only.
-	RemoteItem           *RemoteItemFacet     `json:"remoteItem"`           // Remote Item metadata, if the item is a remote shared item. Read-only.
 	FileSystemInfo       *FileSystemInfoFacet `json:"fileSystemInfo"`       // File system information on client. Read-write.
 	//	Image                *ImageFacet          `json:"image"`                // Image metadata, if the item is an image. Read-only.
 	//	Photo                *PhotoFacet          `json:"photo"`                // Photo metadata, if the item is a photo. Read-only.
 	//	Audio                *AudioFacet          `json:"audio"`                // Audio metadata, if the item is an audio file. Read-only.
 	//	Video                *VideoFacet          `json:"video"`                // Video metadata, if the item is a video. Read-only.
 	//	Location             *LocationFacet       `json:"location"`             // Location metadata, if the item has location data. Read-only.
-	Package *PackageFacet `json:"package"` // If present, indicates that this item is a package instead of a folder or file. Packages are treated like files in some contexts and folders in others. Read-only.
 	Deleted *DeletedFacet `json:"deleted"` // Information about the deleted state of the item. Read-only.
 }

@@ -250,28 +217,6 @@ type MoveItemRequest struct {
 	FileSystemInfo  *FileSystemInfoFacet `json:"fileSystemInfo,omitempty"`  // File system information on client. Read-write.
 }

-//CreateShareLinkRequest is the request to create a sharing link
-//Always Type:view and Scope:anonymous for public sharing
-type CreateShareLinkRequest struct {
-	Type  string `json:"type"`            //Link type in View, Edit or Embed
-	Scope string `json:"scope,omitempty"` //Optional. Scope in anonymousi, organization
-}
-
-//CreateShareLinkResponse is the response from CreateShareLinkRequest
-type CreateShareLinkResponse struct {
-	ID    string   `json:"id"`
-	Roles []string `json:"roles"`
-	Link  struct {
-		Type        string `json:"type"`
-		Scope       string `json:"scope"`
-		WebURL      string `json:"webUrl"`
-		Application struct {
-			ID          string `json:"id"`
-			DisplayName string `json:"displayName"`
-		} `json:"application"`
-	} `json:"link"`
-}
-
 // AsyncOperationStatus provides information on the status of a asynchronous job progress.
 //
 // The following API calls return AsyncOperationStatus resources:
@@ -279,134 +224,7 @@ type CreateShareLinkResponse struct {
 // Copy Item
 // Upload From URL
 type AsyncOperationStatus struct {
+	Operation          string  `json:"operation"`          // The type of job being run.
 	PercentageComplete float64 `json:"percentageComplete"` // An float value between 0 and 100 that indicates the percentage complete.
 	Status             string  `json:"status"`             // A string value that maps to an enumeration of possible values about the status of the job. "notStarted | inProgress | completed | updating | failed | deletePending | deleteFailed | waiting"
 }
-
-// GetID returns a normalized ID of the item
-// If DriveID is known it will be prefixed to the ID with # seperator
-// Can be parsed using onedrive.parseNormalizedID(normalizedID)
-func (i *Item) GetID() string {
-	if i.IsRemote() && i.RemoteItem.ID != "" {
-		return i.RemoteItem.ParentReference.DriveID + "#" + i.RemoteItem.ID
-	} else if i.ParentReference != nil && strings.Index(i.ID, "#") == -1 {
-		return i.ParentReference.DriveID + "#" + i.ID
-	}
-	return i.ID
-}
-
-// GetDriveID returns a normalized ParentReference of the item
-func (i *Item) GetDriveID() string {
-	return i.GetParentReference().DriveID
-}
-
-// GetName returns a normalized Name of the item
-func (i *Item) GetName() string {
-	if i.IsRemote() && i.RemoteItem.Name != "" {
-		return i.RemoteItem.Name
-	}
-	return i.Name
-}
-
-// GetFolder returns a normalized Folder of the item
-func (i *Item) GetFolder() *FolderFacet {
-	if i.IsRemote() && i.RemoteItem.Folder != nil {
-		return i.RemoteItem.Folder
-	}
-	return i.Folder
-}
-
-// GetPackage returns a normalized Package of the item
-func (i *Item) GetPackage() *PackageFacet {
-	if i.IsRemote() && i.RemoteItem.Package != nil {
-		return i.RemoteItem.Package
-	}
-	return i.Package
-}
-
-// GetPackageType returns the package type of the item if available,
-// otherwise ""
-func (i *Item) GetPackageType() string {
-	pack := i.GetPackage()
-	if pack == nil {
-		return ""
-	}
-	return pack.Type
-}
-
-// GetFile returns a normalized File of the item
-func (i *Item) GetFile() *FileFacet {
-	if i.IsRemote() && i.RemoteItem.File != nil {
-		return i.RemoteItem.File
-	}
-	return i.File
-}
-
-// GetFileSystemInfo returns a normalized FileSystemInfo of the item
-func (i *Item) GetFileSystemInfo() *FileSystemInfoFacet {
-	if i.IsRemote() && i.RemoteItem.FileSystemInfo != nil {
-		return i.RemoteItem.FileSystemInfo
-	}
-	return i.FileSystemInfo
-}
-
-// GetSize returns a normalized Size of the item
-func (i *Item) GetSize() int64 {
-	if i.IsRemote() && i.RemoteItem.Size != 0 {
-		return i.RemoteItem.Size
-	}
-	return i.Size
-}
-
-// GetWebURL returns a normalized WebURL of the item
-func (i *Item) GetWebURL() string {
-	if i.IsRemote() && i.RemoteItem.WebURL != "" {
-		return i.RemoteItem.WebURL
-	}
-	return i.WebURL
-}
-
-// GetCreatedBy returns a normalized CreatedBy of the item
-func (i *Item) GetCreatedBy() IdentitySet {
-	if i.IsRemote() && i.RemoteItem.CreatedBy != (IdentitySet{}) {
-		return i.RemoteItem.CreatedBy
-	}
-	return i.CreatedBy
-}
-
-// GetLastModifiedBy returns a normalized LastModifiedBy of the item
-func (i *Item) GetLastModifiedBy() IdentitySet {
-	if i.IsRemote() && i.RemoteItem.LastModifiedBy != (IdentitySet{}) {
-		return i.RemoteItem.LastModifiedBy
-	}
-	return i.LastModifiedBy
-}
-
-// GetCreatedDateTime returns a normalized CreatedDateTime of the item
-func (i *Item) GetCreatedDateTime() Timestamp {
-	if i.IsRemote() && i.RemoteItem.CreatedDateTime != (Timestamp{}) {
-		return i.RemoteItem.CreatedDateTime
-	}
-	return i.CreatedDateTime
-}
-
-// GetLastModifiedDateTime returns a normalized LastModifiedDateTime of the item
-func (i *Item) GetLastModifiedDateTime() Timestamp {
-	if i.IsRemote() && i.RemoteItem.LastModifiedDateTime != (Timestamp{}) {
-		return i.RemoteItem.LastModifiedDateTime
-	}
-	return i.LastModifiedDateTime
-}
-
-// GetParentReference returns a normalized ParentReference of the item
-func (i *Item) GetParentReference() *ItemReference {
-	if i.IsRemote() && i.ParentReference == nil {
-		return i.RemoteItem.ParentReference
-	}
-	return i.ParentReference
-}
-
-// IsRemote checks if item is a remote item
-func (i *Item) IsRemote() bool {
-	return i.RemoteItem != nil
-}
--- a/backend/onedrive/onedrive.go
+++ b/backend/onedrive/onedrive.go
--- a/backend/onedrive/onedrive_test.go
+++ b/backend/onedrive/onedrive_test.go
@@ -1,10 +1,10 @@
 // Test OneDrive filesystem interface
-package onedrive
+package onedrive_test

 import (
 	"testing"

-	"github.com/ncw/rclone/fs"
+	"github.com/ncw/rclone/backend/onedrive"
 	"github.com/ncw/rclone/fstest/fstests"
 )

@@ -12,15 +12,6 @@ import (
 func TestIntegration(t *testing.T) {
 	fstests.Run(t, &fstests.Opt{
 		RemoteName: "TestOneDrive:",
-		NilObject:  (*Object)(nil),
-		ChunkedUpload: fstests.ChunkedUploadConfig{
-			CeilChunkSize: fstests.NextMultipleOf(chunkSizeMultiple),
-		},
+		NilObject:  (*onedrive.Object)(nil),
 	})
 }
-
-func (f *Fs) SetUploadChunkSize(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadChunkSize(cs)
-}
-
-var _ fstests.SetUploadChunkSizer = (*Fs)(nil)
--- a/backend/onedrive/quickxorhash/quickxorhash_test.go
+++ b/backend/onedrive/quickxorhash/quickxorhash_test.go
@@ -140,7 +140,7 @@ func TestQuickXorHashByBlock(t *testing.T) {
 			got := h.Sum(nil)
 			want, err := base64.StdEncoding.DecodeString(test.out)
 			require.NoError(t, err, what)
-			assert.Equal(t, want, got, test.size, what)
+			assert.Equal(t, want, got[:], test.size, what)
 		}
 	}
 }
--- a/backend/opendrive/opendrive.go
+++ b/backend/opendrive/opendrive.go
@@ -6,22 +6,19 @@ import (
 	"io"
 	"mime/multipart"
 	"net/http"
-	"net/url"
 	"path"
 	"strconv"
 	"strings"
 	"time"

 	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config"
 	"github.com/ncw/rclone/fs/config/obscure"
 	"github.com/ncw/rclone/fs/fserrors"
 	"github.com/ncw/rclone/fs/fshttp"
 	"github.com/ncw/rclone/fs/hash"
 	"github.com/ncw/rclone/lib/dircache"
 	"github.com/ncw/rclone/lib/pacer"
-	"github.com/ncw/rclone/lib/readers"
 	"github.com/ncw/rclone/lib/rest"
 	"github.com/pkg/errors"
 )
@@ -40,32 +37,25 @@ func init() {
 		Description: "OpenDrive",
 		NewFs:       NewFs,
 		Options: []fs.Option{{
-			Name:     "username",
-			Help:     "Username",
-			Required: true,
+			Name: "username",
+			Help: "Username",
 		}, {
 			Name:       "password",
 			Help:       "Password.",
 			IsPassword: true,
-			Required:   true,
 		}},
 	})
 }

-// Options defines the configuration for this backend
-type Options struct {
-	UserName string `config:"username"`
-	Password string `config:"password"`
-}
-
 // Fs represents a remote 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
+	username string             // account name
+	password string             // auth key0
 	srv      *rest.Client       // the connection to the server
-	pacer    *fs.Pacer          // To pace and retry the API calls
+	pacer    *pacer.Pacer       // To pace and retry the API calls
 	session  UserSessionInfo    // contains the session data
 	dirCache *dircache.DirCache // Map of directory path to directory id
 }
@@ -119,32 +109,28 @@ func (f *Fs) DirCacheFlush() {
 	f.dirCache.ResetRoot()
 }

-// NewFs constructs an Fs from the path, bucket:path
-func NewFs(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
-	}
+// NewFs contstructs an Fs from the path, bucket:path
+func NewFs(name, root string) (fs.Fs, error) {
 	root = parsePath(root)
-	if opt.UserName == "" {
+	username := config.FileGet(name, "username")
+	if username == "" {
 		return nil, errors.New("username not found")
 	}
-	opt.Password, err = obscure.Reveal(opt.Password)
+	password, err := obscure.Reveal(config.FileGet(name, "password"))
 	if err != nil {
-		return nil, errors.New("password could not revealed")
+		return nil, errors.New("password coudl not revealed")
 	}
-	if opt.Password == "" {
+	if password == "" {
 		return nil, errors.New("password not found")
 	}

 	f := &Fs{
-		name:  name,
-		root:  root,
-		opt:   *opt,
-		srv:   rest.NewClient(fshttp.NewClient(fs.Config)).SetErrorHandler(errorHandler),
-		pacer: fs.NewPacer(pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
+		name:     name,
+		username: username,
+		password: password,
+		root:     root,
+		srv:      rest.NewClient(fshttp.NewClient(fs.Config)).SetErrorHandler(errorHandler),
+		pacer:    pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
 	}

 	f.dirCache = dircache.New(root, "0", f)
@@ -155,7 +141,7 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	// get sessionID
 	var resp *http.Response
 	err = f.pacer.Call(func() (bool, error) {
-		account := Account{Username: opt.UserName, Password: opt.Password}
+		account := Account{Username: username, Password: password}

 		opts := rest.Opts{
 			Method: "POST",
@@ -179,17 +165,17 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	if err != nil {
 		// Assume it is a file
 		newRoot, remote := dircache.SplitPath(root)
-		tempF := *f
-		tempF.dirCache = dircache.New(newRoot, "0", &tempF)
-		tempF.root = newRoot
+		newF := *f
+		newF.dirCache = dircache.New(newRoot, "0", &newF)
+		newF.root = newRoot

 		// Make new Fs which is the parent
-		err = tempF.dirCache.FindRoot(false)
+		err = newF.dirCache.FindRoot(false)
 		if err != nil {
 			// No root so return old f
 			return f, nil
 		}
-		_, err := tempF.newObjectWithInfo(remote, nil)
+		_, err := newF.newObjectWithInfo(remote, nil)
 		if err != nil {
 			if err == fs.ErrorObjectNotFound {
 				// File doesn't exist so return old f
@@ -197,13 +183,8 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 			}
 			return nil, err
 		}
-		// XXX: update the old f here instead of returning tempF, since
-		// `features` were already filled with functions having *f as a receiver.
-		// See https://github.com/ncw/rclone/issues/2182
-		f.dirCache = tempF.dirCache
-		f.root = tempF.root
 		// return an error with an fs which points to the parent
-		return f, fs.ErrorIsFile
+		return &newF, fs.ErrorIsFile
 	}
 	return f, nil
 }
@@ -287,6 +268,9 @@ func (f *Fs) purgeCheck(dir string, check bool) error {
 		return err
 	}
 	f.dirCache.FlushDir(dir)
+	if err != nil {
+		return err
+	}
 	return nil
 }

@@ -782,7 +766,7 @@ func (f *Fs) List(dir string) (entries fs.DirEntries, err error) {
 		remote := path.Join(dir, folder.Name)
 		// cache the directory ID for later lookups
 		f.dirCache.Put(remote, folder.FolderID)
-		d := fs.NewDir(remote, time.Unix(folder.DateModified, 0)).SetID(folder.FolderID)
+		d := fs.NewDir(remote, time.Unix(int64(folder.DateModified), 0)).SetID(folder.FolderID)
 		d.SetItems(int64(folder.ChildFolders))
 		entries = append(entries, d)
 	}
@@ -929,9 +913,8 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 	// resp.Body.Close()
 	// fs.Debugf(nil, "PostOpen: %#v", openResponse)

-	// 10 MB chunks size
+	// 1 MB chunks size
 	chunkSize := int64(1024 * 1024 * 10)
-	buf := make([]byte, int(chunkSize))
 	chunkOffset := int64(0)
 	remainingBytes := size
 	chunkCounter := 0
@@ -944,19 +927,14 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 		remainingBytes -= currentChunkSize
 		fs.Debugf(o, "Uploading chunk %d, size=%d, remain=%d", chunkCounter, currentChunkSize, remainingBytes)

-		chunk := readers.NewRepeatableLimitReaderBuffer(in, buf, currentChunkSize)
 		err = o.fs.pacer.Call(func() (bool, error) {
-			// seek to the start in case this is a retry
-			if _, err = chunk.Seek(0, io.SeekStart); err != nil {
-				return false, err
-			}
 			var formBody bytes.Buffer
 			w := multipart.NewWriter(&formBody)
 			fw, err := w.CreateFormFile("file_data", o.remote)
 			if err != nil {
 				return false, err
 			}
-			if _, err = io.Copy(fw, chunk); err != nil {
+			if _, err = io.CopyN(fw, in, currentChunkSize); err != nil {
 				return false, err
 			}
 			// Add session_id
@@ -1087,7 +1065,7 @@ func (o *Object) readMetaData() (err error) {
 	err = o.fs.pacer.Call(func() (bool, error) {
 		opts := rest.Opts{
 			Method: "GET",
-			Path:   "/folder/itembyname.json/" + o.fs.session.SessionID + "/" + directoryID + "?name=" + url.QueryEscape(replaceReservedChars(leaf)),
+			Path:   "/folder/itembyname.json/" + o.fs.session.SessionID + "/" + directoryID + "?name=" + rest.URLPathEscape(replaceReservedChars(leaf)),
 		}
 		resp, err = o.fs.srv.CallJSON(&opts, nil, &folderList)
 		return o.fs.shouldRetry(resp, err)
--- a/backend/opendrive/types.go
+++ b/backend/opendrive/types.go
@@ -13,7 +13,7 @@ type Error struct {
 	} `json:"error"`
 }

-// Error satisfies the error interface
+// Error statisfies the error interface
 func (e *Error) Error() string {
 	return fmt.Sprintf("%s (Error %d)", e.Info.Message, e.Info.Code)
 }
--- a/backend/pcloud/api/types.go
+++ b/backend/pcloud/api/types.go
@@ -41,7 +41,7 @@ type Error struct {
 	ErrorString string `json:"error"`
 }

-// Error returns a string for the error and satisfies the error interface
+// Error returns a string for the error and statistifes the error interface
 func (e *Error) Error() string {
 	return fmt.Sprintf("pcloud error: %s (%d)", e.ErrorString, e.Result)
 }
@@ -58,7 +58,7 @@ func (e *Error) Update(err error) error {
 	return e
 }

-// Check Error satisfies the error interface
+// Check Error statisfies the error interface
 var _ error = (*Error)(nil)

 // Item describes a folder or a file as returned by Get Folder Items and others
@@ -161,6 +161,7 @@ type UserInfo struct {
 	PublicLinkQuota       int64  `json:"publiclinkquota"`
 	Email                 string `json:"email"`
 	UserID                int    `json:"userid"`
+	Result                int    `json:"result"`
 	Quota                 int64  `json:"quota"`
 	TrashRevretentionDays int    `json:"trashrevretentiondays"`
 	Premium               bool   `json:"premium"`
--- a/backend/pcloud/pcloud.go
+++ b/backend/pcloud/pcloud.go
@@ -23,8 +23,6 @@ import (
 	"github.com/ncw/rclone/backend/pcloud/api"
 	"github.com/ncw/rclone/fs"
 	"github.com/ncw/rclone/fs/config"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
 	"github.com/ncw/rclone/fs/config/obscure"
 	"github.com/ncw/rclone/fs/fserrors"
 	"github.com/ncw/rclone/fs/hash"
@@ -67,35 +65,30 @@ func init() {
 		Name:        "pcloud",
 		Description: "Pcloud",
 		NewFs:       NewFs,
-		Config: func(name string, m configmap.Mapper) {
-			err := oauthutil.Config("pcloud", name, m, oauthConfig)
+		Config: func(name string) {
+			err := oauthutil.Config("pcloud", name, oauthConfig)
 			if err != nil {
 				log.Fatalf("Failed to configure token: %v", err)
 			}
 		},
 		Options: []fs.Option{{
 			Name: config.ConfigClientID,
-			Help: "Pcloud App Client Id\nLeave blank normally.",
+			Help: "Pcloud App Client Id - leave blank normally.",
 		}, {
 			Name: config.ConfigClientSecret,
-			Help: "Pcloud App Client Secret\nLeave blank normally.",
+			Help: "Pcloud App Client Secret - leave blank normally.",
 		}},
 	})
 }

-// Options defines the configuration for this backend
-type Options struct {
-}
-
 // Fs represents a remote pcloud
 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
 	srv          *rest.Client       // the connection to the server
 	dirCache     *dircache.DirCache // Map of directory path to directory id
-	pacer        *fs.Pacer          // pacer for API calls
+	pacer        *pacer.Pacer       // pacer for API calls
 	tokenRenewer *oauthutil.Renew   // renew the token on expiry
 }

@@ -236,25 +229,18 @@ func errorHandler(resp *http.Response) error {
 }

 // NewFs constructs an Fs from the path, container:path
-func NewFs(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
-	}
+func NewFs(name, root string) (fs.Fs, error) {
 	root = parsePath(root)
-	oAuthClient, ts, err := oauthutil.NewClient(name, m, oauthConfig)
+	oAuthClient, ts, err := oauthutil.NewClient(name, oauthConfig)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to configure Pcloud")
+		log.Fatalf("Failed to configure Pcloud: %v", err)
 	}

 	f := &Fs{
 		name:  name,
 		root:  root,
-		opt:   *opt,
 		srv:   rest.NewClient(oAuthClient).SetRoot(rootURL),
-		pacer: fs.NewPacer(pacer.NewDefault(pacer.MinSleep(minSleep), pacer.MaxSleep(maxSleep), pacer.DecayConstant(decayConstant))),
+		pacer: pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
 	}
 	f.features = (&fs.Features{
 		CaseInsensitive:         false,
@@ -276,16 +262,16 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 	if err != nil {
 		// Assume it is a file
 		newRoot, remote := dircache.SplitPath(root)
-		tempF := *f
-		tempF.dirCache = dircache.New(newRoot, rootID, &tempF)
-		tempF.root = newRoot
+		newF := *f
+		newF.dirCache = dircache.New(newRoot, rootID, &newF)
+		newF.root = newRoot
 		// Make new Fs which is the parent
-		err = tempF.dirCache.FindRoot(false)
+		err = newF.dirCache.FindRoot(false)
 		if err != nil {
 			// No root so return old f
 			return f, nil
 		}
-		_, err := tempF.newObjectWithInfo(remote, nil)
+		_, err := newF.newObjectWithInfo(remote, nil)
 		if err != nil {
 			if err == fs.ErrorObjectNotFound {
 				// File doesn't exist so return old f
@@ -293,13 +279,8 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 			}
 			return nil, err
 		}
-		// XXX: update the old f here instead of returning tempF, since
-		// `features` were already filled with functions having *f as a receiver.
-		// See https://github.com/ncw/rclone/issues/2182
-		f.dirCache = tempF.dirCache
-		f.root = tempF.root
 		// return an error with an fs which points to the parent
-		return f, fs.ErrorIsFile
+		return &newF, fs.ErrorIsFile
 	}
 	return f, nil
 }
@@ -385,7 +366,7 @@ func fileIDtoNumber(fileID string) string {
 	if len(fileID) > 0 && fileID[0] == 'f' {
 		return fileID[1:]
 	}
-	fs.Debugf(nil, "Invalid file id %q", fileID)
+	fs.Debugf(nil, "Invalid filee id %q", fileID)
 	return fileID
 }

@@ -1112,12 +1093,6 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 		return shouldRetry(resp, err)
 	})
 	if err != nil {
-		// sometimes pcloud leaves a half complete file on
-		// error, so delete it if it exists
-		delObj, delErr := o.fs.NewObject(o.remote)
-		if delErr == nil && delObj != nil {
-			_ = delObj.Remove()
-		}
 		return err
 	}
 	if len(result.Items) != 1 {
--- a/backend/qingstor/qingstor.go
+++ b/backend/qingstor/qingstor.go
@@ -17,8 +17,7 @@ import (
 	"time"

 	"github.com/ncw/rclone/fs"
-	"github.com/ncw/rclone/fs/config/configmap"
-	"github.com/ncw/rclone/fs/config/configstruct"
+	"github.com/ncw/rclone/fs/config"
 	"github.com/ncw/rclone/fs/fshttp"
 	"github.com/ncw/rclone/fs/hash"
 	"github.com/ncw/rclone/fs/walk"
@@ -35,91 +34,57 @@ func init() {
 		Description: "QingCloud Object Storage",
 		NewFs:       NewFs,
 		Options: []fs.Option{{
-			Name:    "env_auth",
-			Help:    "Get QingStor credentials from runtime. Only applies if access_key_id and secret_access_key is blank.",
-			Default: false,
-			Examples: []fs.OptionExample{{
-				Value: "false",
-				Help:  "Enter QingStor credentials in the next step",
-			}, {
-				Value: "true",
-				Help:  "Get QingStor credentials from the environment (env vars or IAM)",
-			}},
+			Name: "env_auth",
+			Help: "Get QingStor credentials from runtime. Only applies if access_key_id and secret_access_key is blank.",
+			Examples: []fs.OptionExample{
+				{
+					Value: "false",
+					Help:  "Enter QingStor credentials in the next step",
+				}, {
+					Value: "true",
+					Help:  "Get QingStor credentials from the environment (env vars or IAM)",
+				},
+			},
 		}, {
 			Name: "access_key_id",
-			Help: "QingStor Access Key ID\nLeave blank for anonymous access or runtime credentials.",
+			Help: "QingStor Access Key ID - leave blank for anonymous access or runtime credentials.",
 		}, {
 			Name: "secret_access_key",
-			Help: "QingStor Secret Access Key (password)\nLeave blank for anonymous access or runtime credentials.",
+			Help: "QingStor Secret Access Key (password) - leave blank for anonymous access or runtime credentials.",
 		}, {
 			Name: "endpoint",
 			Help: "Enter a endpoint URL to connection QingStor API.\nLeave blank will use the default value \"https://qingstor.com:443\"",
 		}, {
 			Name: "zone",
-			Help: "Zone to connect to.\nDefault is \"pek3a\".",
-			Examples: []fs.OptionExample{{
-				Value: "pek3a",
-				Help:  "The Beijing (China) Three Zone\nNeeds location constraint pek3a.",
-			}, {
-				Value: "sh1a",
-				Help:  "The Shanghai (China) First Zone\nNeeds location constraint sh1a.",
-			}, {
-				Value: "gd2a",
-				Help:  "The Guangdong (China) Second Zone\nNeeds location constraint gd2a.",
-			}},
+			Help: "Choose or Enter a zone to connect. Default is \"pek3a\".",
+			Examples: []fs.OptionExample{
+				{
+					Value: "pek3a",
+
+					Help: "The Beijing (China) Three Zone\nNeeds location constraint pek3a.",
+				},
+				{
+					Value: "sh1a",
+
+					Help: "The Shanghai (China) First Zone\nNeeds location constraint sh1a.",
+				},
+				{
+					Value: "gd2a",
+
+					Help: "The Guangdong (China) Second Zone\nNeeds location constraint gd2a.",
+				},
+			},
 		}, {
-			Name:     "connection_retries",
-			Help:     "Number of connection retries.",
-			Default:  3,
-			Advanced: true,
-		}, {
-			Name: "upload_cutoff",
-			Help: `Cutoff for switching to chunked upload
-
-Any files larger than this will be uploaded in chunks of chunk_size.
-The minimum is 0 and the maximum is 5GB.`,
-			Default:  defaultUploadCutoff,
-			Advanced: true,
-		}, {
-			Name: "chunk_size",
-			Help: `Chunk size to use for uploading.
-
-When uploading files larger than upload_cutoff they will be uploaded
-as multipart uploads using this chunk size.
-
-Note that "--qingstor-upload-concurrency" chunks of this size are buffered
-in memory per transfer.
-
-If you are transferring large files over high speed links and you have
-enough memory, then increasing this will speed up the transfers.`,
-			Default:  minChunkSize,
-			Advanced: true,
-		}, {
-			Name: "upload_concurrency",
-			Help: `Concurrency for multipart uploads.
-
-This is the number of chunks of the same file that are uploaded
-concurrently.
-
-NB if you set this to > 1 then the checksums of multpart uploads
-become corrupted (the uploads themselves are not corrupted though).
-
-If you are uploading small numbers of large file over high speed link
-and these uploads do not fully utilize your bandwidth, then increasing
-this may help to speed up the transfers.`,
-			Default:  1,
-			Advanced: true,
+			Name: "connection_retries",
+			Help: "Number of connnection retry.\nLeave blank will use the default value \"3\".",
 		}},
 	})
 }

 // Constants
 const (
-	listLimitSize       = 1000                   // Number of items to read at once
-	maxSizeForCopy      = 1024 * 1024 * 1024 * 5 // The maximum size of object we can COPY
-	minChunkSize        = fs.SizeSuffix(minMultiPartSize)
-	defaultUploadCutoff = fs.SizeSuffix(200 * 1024 * 1024)
-	maxUploadCutoff     = fs.SizeSuffix(5 * 1024 * 1024 * 1024)
+	listLimitSize  = 1000                   // Number of items to read at once
+	maxSizeForCopy = 1024 * 1024 * 1024 * 5 // The maximum size of object we can COPY
 )

 // Globals
@@ -130,31 +95,17 @@ func timestampToTime(tp int64) time.Time {
 	return tm.UTC()
 }

-// Options defines the configuration for this backend
-type Options struct {
-	EnvAuth           bool          `config:"env_auth"`
-	AccessKeyID       string        `config:"access_key_id"`
-	SecretAccessKey   string        `config:"secret_access_key"`
-	Endpoint          string        `config:"endpoint"`
-	Zone              string        `config:"zone"`
-	ConnectionRetries int           `config:"connection_retries"`
-	UploadCutoff      fs.SizeSuffix `config:"upload_cutoff"`
-	ChunkSize         fs.SizeSuffix `config:"chunk_size"`
-	UploadConcurrency int           `config:"upload_concurrency"`
-}
-
 // Fs represents a remote qingstor server
 type Fs struct {
 	name          string       // The name of the remote
-	root          string       // The root is a subdir, is a special object
-	opt           Options      // parsed options
-	features      *fs.Features // optional features
-	svc           *qs.Service  // The connection to the qingstor server
 	zone          string       // The zone we are working on
 	bucket        string       // The bucket we are working on
 	bucketOKMu    sync.Mutex   // mutex to protect bucketOK and bucketDeleted
 	bucketOK      bool         // true if we have created the bucket
 	bucketDeleted bool         // true if we have deleted the bucket
+	root          string       // The root is a subdir, is a special object
+	features      *fs.Features // optional features
+	svc           *qs.Service  // The connection to the qingstor server
 }

 // Object describes a qingstor object
@@ -175,12 +126,10 @@ type Object struct {

 // ------------------------------------------------------------

-// Pattern to match a qingstor path
-var matcher = regexp.MustCompile(`^/*([^/]*)(.*)$`)
-
 // parseParse parses a qingstor 'url'
 func qsParsePath(path string) (bucket, key string, err error) {
 	// Pattern to match a qingstor path
+	var matcher = regexp.MustCompile(`^([^/]*)(.*)$`)
 	parts := matcher.FindStringSubmatch(path)
 	if parts == nil {
 		err = errors.Errorf("Couldn't parse bucket out of qingstor path %q", path)
@@ -216,12 +165,12 @@ func qsParseEndpoint(endpoint string) (protocol, host, port string, err error) {
 }

 // qsConnection makes a connection to qingstor
-func qsServiceConnection(opt *Options) (*qs.Service, error) {
-	accessKeyID := opt.AccessKeyID
-	secretAccessKey := opt.SecretAccessKey
+func qsServiceConnection(name string) (*qs.Service, error) {
+	accessKeyID := config.FileGet(name, "access_key_id")
+	secretAccessKey := config.FileGet(name, "secret_access_key")

 	switch {
-	case opt.EnvAuth:
+	case config.FileGetBool(name, "env_auth", false):
 		// No need for empty checks if "env_auth" is true
 	case accessKeyID == "" && secretAccessKey == "":
 		// if no access key/secret and iam is explicitly disabled then fall back to anon interaction
@@ -235,7 +184,7 @@ func qsServiceConnection(opt *Options) (*qs.Service, error) {
 	host := "qingstor.com"
 	port := 443

-	endpoint := opt.Endpoint
+	endpoint := config.FileGet(name, "endpoint", "")
 	if endpoint != "" {
 		_protocol, _host, _port, err := qsParseEndpoint(endpoint)

@@ -255,87 +204,48 @@ func qsServiceConnection(opt *Options) (*qs.Service, error) {

 	}

-	cf, err := qsConfig.NewDefault()
-	if err != nil {
-		return nil, err
+	connectionRetries := 3
+	retries := config.FileGet(name, "connection_retries", "")
+	if retries != "" {
+		connectionRetries, _ = strconv.Atoi(retries)
 	}
+
+	cf, err := qsConfig.NewDefault()
 	cf.AccessKeyID = accessKeyID
 	cf.SecretAccessKey = secretAccessKey
 	cf.Protocol = protocol
 	cf.Host = host
 	cf.Port = port
-	cf.ConnectionRetries = opt.ConnectionRetries
+	cf.ConnectionRetries = connectionRetries
 	cf.Connection = fshttp.NewClient(fs.Config)

-	return qs.Init(cf)
-}
+	svc, _ := qs.Init(cf)

-func checkUploadChunkSize(cs fs.SizeSuffix) error {
-	if cs < minChunkSize {
-		return errors.Errorf("%s is less than %s", cs, minChunkSize)
-	}
-	return nil
-}
-
-func (f *Fs) setUploadChunkSize(cs fs.SizeSuffix) (old fs.SizeSuffix, err error) {
-	err = checkUploadChunkSize(cs)
-	if err == nil {
-		old, f.opt.ChunkSize = f.opt.ChunkSize, cs
-	}
-	return
-}
-
-func checkUploadCutoff(cs fs.SizeSuffix) error {
-	if cs > maxUploadCutoff {
-		return errors.Errorf("%s is greater than %s", cs, maxUploadCutoff)
-	}
-	return nil
-}
-
-func (f *Fs) setUploadCutoff(cs fs.SizeSuffix) (old fs.SizeSuffix, err error) {
-	err = checkUploadCutoff(cs)
-	if err == nil {
-		old, f.opt.UploadCutoff = f.opt.UploadCutoff, cs
-	}
-	return
+	return svc, err
 }

 // NewFs constructs an Fs from the path, bucket:path
-func NewFs(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
-	}
-	err = checkUploadChunkSize(opt.ChunkSize)
-	if err != nil {
-		return nil, errors.Wrap(err, "qingstor: chunk size")
-	}
-	err = checkUploadCutoff(opt.UploadCutoff)
-	if err != nil {
-		return nil, errors.Wrap(err, "qingstor: upload cutoff")
-	}
+func NewFs(name, root string) (fs.Fs, error) {
 	bucket, key, err := qsParsePath(root)
 	if err != nil {
 		return nil, err
 	}
-	svc, err := qsServiceConnection(opt)
+	svc, err := qsServiceConnection(name)
 	if err != nil {
 		return nil, err
 	}

-	if opt.Zone == "" {
-		opt.Zone = "pek3a"
+	zone := config.FileGet(name, "zone")
+	if zone == "" {
+		zone = "pek3a"
 	}

 	f := &Fs{
 		name:   name,
+		zone:   zone,
 		root:   key,
-		opt:    *opt,
-		svc:    svc,
-		zone:   opt.Zone,
 		bucket: bucket,
+		svc:    svc,
 	}
 	f.features = (&fs.Features{
 		ReadMimeType:  true,
@@ -348,7 +258,7 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 			f.root += "/"
 		}
 		//Check to see if the object exists
-		bucketInit, err := svc.Bucket(bucket, opt.Zone)
+		bucketInit, err := svc.Bucket(bucket, zone)
 		if err != nil {
 			return nil, err
 		}
@@ -449,7 +359,7 @@ func (f *Fs) Copy(src fs.Object, remote string) (fs.Object, error) {
 	}
 	_, err = bucketInit.PutObject(key, &req)
 	if err != nil {
-		fs.Debugf(f, "Copy Failed, API Error: %v", err)
+		fs.Debugf(f, "Copied Faild, API Error: %v", err)
 		return nil, err
 	}
 	return f.NewObject(remote)
@@ -756,7 +666,7 @@ func (f *Fs) Mkdir(dir string) error {
 		}
 		switch *statistics.Status {
 		case "deleted":
-			fs.Debugf(f, "Wait for qingstor sync bucket status, retries: %d", retries)
+			fs.Debugf(f, "Wiat for qingstor sync bucket status, retries: %d", retries)
 			time.Sleep(time.Second * 1)
 			retries++
 			continue
@@ -875,7 +785,7 @@ func (o *Object) readMetaData() (err error) {
 	fs.Debugf(o, "Read metadata of key: %s", key)
 	resp, err := bucketInit.HeadObject(key, &qs.HeadObjectInput{})
 	if err != nil {
-		fs.Debugf(o, "Read metadata failed, API Error: %v", err)
+		fs.Debugf(o, "Read metadata faild, API Error: %v", err)
 		if e, ok := err.(*qsErr.QingStorError); ok {
 			if e.StatusCode == http.StatusNotFound {
 				return fs.ErrorObjectNotFound
@@ -994,24 +904,16 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOptio
 	mimeType := fs.MimeType(src)

 	req := uploadInput{
-		body:        in,
-		qsSvc:       o.fs.svc,
-		bucket:      o.fs.bucket,
-		zone:        o.fs.zone,
-		key:         key,
-		mimeType:    mimeType,
-		partSize:    int64(o.fs.opt.ChunkSize),
-		concurrency: o.fs.opt.UploadConcurrency,
+		body:     in,
+		qsSvc:    o.fs.svc,
+		bucket:   o.fs.bucket,
+		zone:     o.fs.zone,
+		key:      key,
+		mimeType: mimeType,
 	}
 	uploader := newUploader(&req)

-	size := src.Size()
-	multipart := size < 0 || size >= int64(o.fs.opt.UploadCutoff)
-	if multipart {
-		err = uploader.upload()
-	} else {
-		err = uploader.singlePartUpload(in, size)
-	}
+	err = uploader.upload()
 	if err != nil {
 		return err
 	}
--- a/backend/qingstor/qingstor_test.go
+++ b/backend/qingstor/qingstor_test.go
@@ -2,12 +2,12 @@

 // +build !plan9

-package qingstor
+package qingstor_test

 import (
 	"testing"

-	"github.com/ncw/rclone/fs"
+	"github.com/ncw/rclone/backend/qingstor"
 	"github.com/ncw/rclone/fstest/fstests"
 )

@@ -15,19 +15,6 @@ import (
 func TestIntegration(t *testing.T) {
 	fstests.Run(t, &fstests.Opt{
 		RemoteName: "TestQingStor:",
-		NilObject:  (*Object)(nil),
-		ChunkedUpload: fstests.ChunkedUploadConfig{
-			MinChunkSize: minChunkSize,
-		},
+		NilObject:  (*qingstor.Object)(nil),
 	})
 }
-
-func (f *Fs) SetUploadChunkSize(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadChunkSize(cs)
-}
-
-func (f *Fs) SetUploadCutoff(cs fs.SizeSuffix) (fs.SizeSuffix, error) {
-	return f.setUploadCutoff(cs)
-}
-
-var _ fstests.SetUploadChunkSizer = (*Fs)(nil)
--- a/backend/qingstor/upload.go
+++ b/backend/qingstor/upload.go
@@ -143,7 +143,7 @@ func (u *uploader) init() {

 		// Try to adjust partSize if it is too small and account for
 		// integer division truncation.
-		if u.totalSize/u.cfg.partSize >= u.cfg.partSize {
+		if u.totalSize/u.cfg.partSize >= int64(u.cfg.partSize) {
 			// Add one to the part size to account for remainders
 			// during the size calculation. e.g odd number of bytes.
 			u.cfg.partSize = (u.totalSize / int64(u.cfg.maxUploadParts)) + 1
@@ -152,18 +152,18 @@ func (u *uploader) init() {
 }

 // singlePartUpload upload a single object that contentLength less than "defaultUploadPartSize"
-func (u *uploader) singlePartUpload(buf io.Reader, size int64) error {
+func (u *uploader) singlePartUpload(buf io.ReadSeeker) error {
 	bucketInit, _ := u.bucketInit()

 	req := qs.PutObjectInput{
-		ContentLength: &size,
+		ContentLength: &u.readerPos,
 		ContentType:   &u.cfg.mimeType,
 		Body:          buf,
 	}

 	_, err := bucketInit.PutObject(u.cfg.key, &req)
 	if err == nil {
-		fs.Debugf(u, "Upload single object finished")
+		fs.Debugf(u, "Upload single objcet finished")
 	}
 	return err
 }
@@ -179,13 +179,13 @@ func (u *uploader) upload() error {
 	// Do one read to determine if we have more than one part
 	reader, _, err := u.nextReader()
 	if err == io.EOF { // single part
-		fs.Debugf(u, "Uploading as single part object to QingStor")
-		return u.singlePartUpload(reader, u.readerPos)
+		fs.Debugf(u, "Tried to upload a singile object to QingStor")
+		return u.singlePartUpload(reader)
 	} else if err != nil {
 		return errors.Errorf("read upload data failed: %s", err)
 	}

-	fs.Debugf(u, "Uploading as multi-part object to QingStor")
+	fs.Debugf(u, "Treied to upload a multi-part object to QingStor")
 	mu := multiUploader{uploader: u}
 	return mu.multiPartUpload(reader)
 }
@@ -261,7 +261,7 @@ func (mu *multiUploader) initiate() error {
 	req := qs.InitiateMultipartUploadInput{
 		ContentType: &mu.cfg.mimeType,
 	}
-	fs.Debugf(mu, "Initiating a multi-part upload")
+	fs.Debugf(mu, "Tried to initiate a multi-part upload")
 	rsp, err := bucketInit.InitiateMultipartUpload(mu.cfg.key, &req)
 	if err == nil {
 		mu.uploadID = rsp.UploadID
@@ -279,12 +279,12 @@ func (mu *multiUploader) send(c chunk) error {
 		ContentLength: &c.size,
 		Body:          c.buffer,
 	}
-	fs.Debugf(mu, "Uploading a part to QingStor with partNumber %d and partSize %d", c.partNumber, c.size)
+	fs.Debugf(mu, "Tried to upload a part to QingStor that partNumber %d and partSize %d", c.partNumber, c.size)
 	_, err := bucketInit.UploadMultipart(mu.cfg.key, &req)
 	if err != nil {
 		return err
 	}
-	fs.Debugf(mu, "Done uploading part partNumber %d and partSize %d", c.partNumber, c.size)
+	fs.Debugf(mu, "Upload part finished that partNumber %d and partSize %d", c.partNumber, c.size)

 	mu.mtx.Lock()
 	defer mu.mtx.Unlock()
@@ -304,7 +304,7 @@ func (mu *multiUploader) list() error {
 	req := qs.ListMultipartInput{
 		UploadID: mu.uploadID,
 	}
-	fs.Debugf(mu, "Reading multi-part details")
+	fs.Debugf(mu, "Tried to list a multi-part")
 	rsp, err := bucketInit.ListMultipart(mu.cfg.key, &req)
 	if err == nil {
 		mu.objectParts = rsp.ObjectParts
@@ -331,7 +331,7 @@ func (mu *multiUploader) complete() error {
 		ObjectParts: mu.objectParts,
 		ETag:        &md5String,
 	}
-	fs.Debugf(mu, "Completing multi-part object")
+	fs.Debugf(mu, "Tried to complete a multi-part")
 	_, err = bucketInit.CompleteMultipartUpload(mu.cfg.key, &req)
 	if err == nil {
 		fs.Debugf(mu, "Complete multi-part finished")
@@ -348,7 +348,7 @@ func (mu *multiUploader) abort() error {
 		req := qs.AbortMultipartUploadInput{
 			UploadID: uploadID,
 		}
-		fs.Debugf(mu, "Aborting multi-part object %q", *uploadID)
+		fs.Debugf(mu, "Tried to abort a multi-part")
 		_, err = bucketInit.AbortMultipartUpload(mu.cfg.key, &req)
 	}

@@ -392,14 +392,6 @@ func (mu *multiUploader) multiPartUpload(firstBuf io.ReadSeeker) error {
 		var nextChunkLen int
 		reader, nextChunkLen, err = mu.nextReader()
 		if err != nil && err != io.EOF {
-			// empty ch
-			go func() {
-				for range ch {
-				}
-			}()
-			// Wait for all goroutines finish
-			close(ch)
-			mu.wg.Wait()
 			return err
 		}
 		if nextChunkLen == 0 && partNumber > 0 {
--- a/backend/s3/s3.go
+++ b/backend/s3/s3.go
--- a/Show More
+++ b/Show More