mirror of
https://github.com/octoleo/restic.git
synced 2024-12-22 19:08:55 +00:00
backend/local: replace fs.Walk with custom walker
This code is more strict in what it expects to find in the backend: depending on the layout, either a directory full of files or a directory full of such directories.
This commit is contained in:
parent
a2d4209322
commit
8e213e82fc
@ -222,45 +222,15 @@ func (b *Local) Remove(ctx context.Context, h restic.Handle) error {
|
||||
|
||||
// List runs fn for each file in the backend which has the type t. When an
|
||||
// error occurs (or fn returns an error), List stops and returns it.
|
||||
func (b *Local) List(ctx context.Context, t restic.FileType, fn func(restic.FileInfo) error) error {
|
||||
func (b *Local) List(ctx context.Context, t restic.FileType, fn func(restic.FileInfo) error) (err error) {
|
||||
debug.Log("List %v", t)
|
||||
|
||||
basedir, subdirs := b.Basedir(t)
|
||||
atBasedir := true
|
||||
err := fs.Walk(basedir, func(path string, fi os.FileInfo, err error) error {
|
||||
debug.Log("walk on %v\n", path)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
switch {
|
||||
case atBasedir: // Skip basedir itself.
|
||||
atBasedir = false
|
||||
return nil
|
||||
case fi.IsDir() && !subdirs:
|
||||
return filepath.SkipDir
|
||||
case !fi.Mode().IsRegular():
|
||||
return nil
|
||||
}
|
||||
|
||||
debug.Log("send %v\n", filepath.Base(path))
|
||||
|
||||
rfi := restic.FileInfo{
|
||||
Name: filepath.Base(path),
|
||||
Size: fi.Size(),
|
||||
}
|
||||
|
||||
if ctx.Err() != nil {
|
||||
return ctx.Err()
|
||||
}
|
||||
|
||||
err = fn(rfi)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return ctx.Err()
|
||||
})
|
||||
if subdirs {
|
||||
err = visitDirs(ctx, basedir, fn)
|
||||
} else {
|
||||
err = visitFiles(ctx, basedir, fn)
|
||||
}
|
||||
|
||||
if b.IsNotExist(err) {
|
||||
debug.Log("ignoring non-existing directory")
|
||||
@ -270,6 +240,61 @@ func (b *Local) List(ctx context.Context, t restic.FileType, fn func(restic.File
|
||||
return err
|
||||
}
|
||||
|
||||
// The following two functions are like filepath.Walk, but visit only one or
|
||||
// two levels of directory structure (including dir itself as the first level).
|
||||
// Also, visitDirs assumes it sees a directory full of directories, while
|
||||
// visitFiles wants a directory full or regular files.
|
||||
func visitDirs(ctx context.Context, dir string, fn func(restic.FileInfo) error) error {
|
||||
d, err := fs.Open(dir)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer d.Close()
|
||||
|
||||
sub, err := d.Readdirnames(-1)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for _, f := range sub {
|
||||
err = visitFiles(ctx, filepath.Join(dir, f), fn)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return ctx.Err()
|
||||
}
|
||||
|
||||
func visitFiles(ctx context.Context, dir string, fn func(restic.FileInfo) error) error {
|
||||
d, err := fs.Open(dir)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer d.Close()
|
||||
|
||||
sub, err := d.Readdir(-1)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for _, fi := range sub {
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return ctx.Err()
|
||||
default:
|
||||
}
|
||||
|
||||
err := fn(restic.FileInfo{
|
||||
Name: fi.Name(),
|
||||
Size: fi.Size(),
|
||||
})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Delete removes the repository and all files.
|
||||
func (b *Local) Delete(ctx context.Context) error {
|
||||
debug.Log("Delete()")
|
||||
|
Loading…
Reference in New Issue
Block a user