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Add a new flag --target to dump command 

Signed-off-by: lou <alex1988@outlook.com>
This commit is contained in:
lou 2024-02-04 17:19:18 +08:00
parent 96518d7c4a
commit 2e460f4fed
1 changed files with 15 additions and 5 deletions
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20
cmd/restic/cmd_dump.go
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@ -17,11 +17,11 @@ import (
var cmdDump = &cobra.Command{
Use: "dump [flags] snapshotID file",
Short: "Print a backed-up file to stdout",
Short: "Print a backed-up file to stdout or save it to a file",
Long: `
The "dump" command extracts files from a snapshot from the repository. If a
single file is selected, it prints its contents to stdout. Folders are output
as a tar (default) or zip file containing the contents of the specified folder.
The "dump" command extracts files from a snapshot in the repository.
Use --target to specify the output file; defaults to stdout.
Single files are printed directly, while folders are archived as tar (default) or zip.
Pass "/" as file name to dump the whole snapshot as an archive file.
The special snapshotID "latest" can be used to use the latest snapshot in the
@ -46,6 +46,7 @@ Exit status is 0 if the command was successful, and non-zero if there was any er
type DumpOptions struct {
restic.SnapshotFilter
Archive string
Target string
}
var dumpOptions DumpOptions
@ -56,6 +57,7 @@ func init() {
flags := cmdDump.Flags()
initSingleSnapshotFilter(flags, &dumpOptions.SnapshotFilter)
flags.StringVarP(&dumpOptions.Archive, "archive", "a", "tar", "set archive `format` as \"tar\" or \"zip\"")
flags.StringVarP(&dumpOptions.Target, "target", "t", "", "file to write the backed-up file to")
}
func splitPath(p string) []string {
@ -168,7 +170,15 @@ func runDump(ctx context.Context, opts DumpOptions, gopts GlobalOptions, args []
return errors.Fatalf("loading tree for snapshot %q failed: %v", snapshotIDString, err)
}
d := dump.New(opts.Archive, repo, os.Stdout)
w := os.Stdout
if opts.Target != "" {
w, err = os.Create(opts.Target)
if err != nil {
return err
}
}
d := dump.New(opts.Archive, repo, w)
err = printFromTree(ctx, tree, repo, "/", splittedPath, d)
if err != nil {
return errors.Fatalf("cannot dump file: %v", err)