Merge pull request #4692 from 27149chen/dump-to-existing-file

feat: dump flag --target should be allowed to write existing file

changelog/unreleased/issue-4678

@@ -5,3 +5,4 @@ Restic `dump` always printed to the standard output. It now permits to select a
 
 https://github.com/restic/restic/issues/4678
 https://github.com/restic/restic/pull/4682
+https://github.com/restic/restic/pull/4692

cmd/restic/cmd_dump.go

@@ -174,7 +174,7 @@ func runDump(ctx context.Context, opts DumpOptions, gopts GlobalOptions, args []
 	canWriteArchiveFunc := checkStdoutArchive
 
 	if opts.Target != "" {
-		file, err := os.OpenFile(opts.Target, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0o666)
+		file, err := os.Create(opts.Target)
 		if err != nil {
 			return fmt.Errorf("cannot dump to file: %w", err)
 		}

doc/050_restore.rst

@@ -176,8 +176,7 @@ To include the folder content at the root of the archive, you can use the ``<sna
     $ restic -r /srv/restic-repo dump latest:/home/other/work / > restore.tar
 
 It is also possible to ``dump`` the contents of a selected snapshot and folder
-structure to a file using the ``--target`` flag. The ``dump`` command will fail
-if the already file exists.
+structure to a file using the ``--target`` flag.
 
 .. code-block:: console
     $ restic -r /srv/restic-repo dump latest / --target /home/linux.user/output.tar -a tar