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Minor fixes/tweaks; add docs

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This commit is contained in:
Matthew Holt 2018-08-10 22:10:02 -06:00
parent 8c146eac4b
commit 156d85a29b
2 changed files with 36 additions and 6 deletions
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15
changelog/unreleased/1941 Normal file
View File

@ -0,0 +1,15 @@
Enhancement: Add directory filter to ls command
The ls command can now be filtered by directories, so that only files in the
given directories will be shown. If the --recursive flag is specified, then
ls will traverse subfolders and list their files as well.
It used to be possible to specify multiple snapshots, but that has been
replaced by only one snapshot and the possibility of specifying multiple
directories.
Specifying directories constrains the walk, which can significantly speed up
the listing.
https://github.com/restic/restic/issues/1940
https://github.com/restic/restic/pull/1941

27
cmd/restic/cmd_ls.go
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@ -13,12 +13,21 @@ import (
)
var cmdLs = &cobra.Command{
Use: "ls [flags] [snapshot-ID] [dir...]",
Use: "ls [flags] [snapshotID] [dir...]",
Short: "List files in a snapshot",
Long: `
The "ls" command allows listing files and directories in a snapshot.
The "ls" command lists files and directories in a snapshot.
The special snapshot-ID "latest" can be used to list files and directories of the latest snapshot in the repository.
The special snapshot ID "latest" can be used to list files and
directories of the latest snapshot in the repository. The
--host flag can be used in conjunction to select the latest
snapshot originating from a certain host only.
File listings can optionally be filtered by directories. Any
positional arguments after the snapshot ID are interpreted as
directory paths, and only files inside those directories will
be listed. If the --recursive flag is used, then the filter
will allow traversing into matching directories' subfolders.
`,
DisableAutoGenTag: true,
RunE: func(cmd *cobra.Command, args []string) error {
@ -42,7 +51,6 @@ func init() {
flags := cmdLs.Flags()
flags.BoolVarP(&lsOptions.ListLong, "long", "l", false, "use a long listing format showing size and mode")
flags.StringVarP(&lsOptions.Host, "host", "H", "", "only consider snapshots for this `host`, when no snapshot ID is given")
flags.Var(&lsOptions.Tags, "tag", "only consider snapshots which include this `taglist`, when no snapshot ID is given")
flags.StringArrayVar(&lsOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path`, when no snapshot ID is given")
@ -64,12 +72,19 @@ func runLs(opts LsOptions, gopts GlobalOptions, args []string) error {
}
// extract any specific directories to walk
dirs := args[1:]
var dirs []string
if len(args) > 1 {
dirs = args[1:]
}
ctx, cancel := context.WithCancel(gopts.ctx)
defer cancel()
for sn := range FindFilteredSnapshots(ctx, repo, opts.Host, opts.Tags, opts.Paths, args[:1]) {
Verbosef("snapshot %s of %v at %s):\n", sn.ID().Str(), sn.Paths, sn.Time)
dirsToPrint := opts.Paths
if len(dirs) > 0 {
dirsToPrint = dirs
}
Verbosef("snapshot %s of %v at %s):\n", sn.ID().Str(), dirsToPrint, sn.Time)
err := walker.Walk(ctx, repo, *sn.Tree, nil, func(nodepath string, node *restic.Node, err error) (bool, error) {
if err != nil {