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fs: Add directory to optional Purge interface - fixes #1891

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- add a directory to the optional Purge interface
- fix up all the backends
- add an additional integration test to test for the feature
- use the new feature in operations.Purge

Many of the backends had been prepared in advance for this so the
change was trivial for them.
This commit is contained in:
Nick Craig-Wood
2020-06-04 22:25:14 +01:00
parent c2f3949ded
commit a2afa9aadd
31 changed files with 244 additions and 222 deletions
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60
backend/drive/drive.go
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@@ -2208,10 +2208,9 @@ func (f *Fs) delete(ctx context.Context, id string, useTrash bool) error {
})
}
// Rmdir deletes a directory
//
// Returns an error if it isn't empty
func (f *Fs) Rmdir(ctx context.Context, dir string) error {
// purgeCheck removes the dir directory, if check is set then it
// refuses to do so if it has anything in
func (f *Fs) purgeCheck(ctx context.Context, dir string, check bool) error {
root := path.Join(f.root, dir)
dc := f.dirCache
directoryID, err := dc.FindDir(ctx, dir, false)
@@ -2224,20 +2223,22 @@ func (f *Fs) Rmdir(ctx context.Context, dir string) error {
return f.delete(ctx, shortcutID, f.opt.UseTrash)
}
var trashedFiles = false
found, err := f.list(ctx, []string{directoryID}, "", false, false, true, func(item *drive.File) bool {
if !item.Trashed {
fs.Debugf(dir, "Rmdir: contains file: %q", item.Name)
return true
if check {
found, err := f.list(ctx, []string{directoryID}, "", false, false, true, func(item *drive.File) bool {
if !item.Trashed {
fs.Debugf(dir, "Rmdir: contains file: %q", item.Name)
return true
}
fs.Debugf(dir, "Rmdir: contains trashed file: %q", item.Name)
trashedFiles = true
return false
})
if err != nil {
return err
}
if found {
return errors.Errorf("directory not empty")
}
fs.Debugf(dir, "Rmdir: contains trashed file: %q", item.Name)
trashedFiles = true
return false
})
if err != nil {
return err
}
if found {
return errors.Errorf("directory not empty")
}
if root != "" {
// trash the directory if it had trashed files
@@ -2247,6 +2248,8 @@ func (f *Fs) Rmdir(ctx context.Context, dir string) error {
if err != nil {
return err
}
} else if check {
return errors.New("can't purge root directory")
}
f.dirCache.FlushDir(dir)
if err != nil {
@@ -2255,6 +2258,13 @@ func (f *Fs) Rmdir(ctx context.Context, dir string) error {
return nil
}
// Rmdir deletes a directory
//
// Returns an error if it isn't empty
func (f *Fs) Rmdir(ctx context.Context, dir string) error {
return f.purgeCheck(ctx, dir, true)
}
// Precision of the object storage system
func (f *Fs) Precision() time.Duration {
return time.Millisecond
@@ -2348,23 +2358,11 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
// Optional interface: Only implement this if you have a way of
// deleting all the files quicker than just running Remove() on the
// result of List()
func (f *Fs) Purge(ctx context.Context) error {
if f.root == "" {
return errors.New("can't purge root directory")
}
func (f *Fs) Purge(ctx context.Context, dir string) error {
if f.opt.TrashedOnly {
return errors.New("Can't purge with --drive-trashed-only. Use delete if you want to selectively delete files")
}
rootID, err := f.dirCache.RootID(ctx, false)
if err != nil {
return err
}
err = f.delete(ctx, shortcutID(rootID), f.opt.UseTrash)
f.dirCache.ResetRoot()
if err != nil {
return err
}
return nil
return f.purgeCheck(ctx, dir, false)
}
// CleanUp empties the trash