Merge pull request #5243 from zmanda/feat-gh-4868-show-repo-id-in-df-and-mount

mount: append the repository ID to the name of the FUSE mount

changelog/unreleased/issue-4868

@@ -0,0 +1,14 @@
+Enhancement: Include repository id in filesystem name used by `mount`
+
+The filesystem created by restic's `mount` command now includes the repository
+id in the filesystem name. The repository id is printed by restic when opening
+a repository or can be looked up using `restic cat config`.
+
+```
+[restic-user@hostname restic]$ df ./test-mount/
+Filesystem        1K-blocks  Used Available Use% Mounted on
+restic:d3b07384d1         0     0         0    - /mnt/my-restic-repo
+```
+
+https://github.com/restic/restic/issues/4868
+https://github.com/restic/restic/pull/5243

cmd/restic/cmd_mount.go

@@ -5,6 +5,7 @@ package main
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"strings"
 	"time"
@@ -148,9 +149,11 @@ func runMount(ctx context.Context, opts MountOptions, gopts GlobalOptions, args
 		return err
 	}
 
+	fuseMountName := fmt.Sprintf("restic:%s", repo.Config().ID[:10])
+
 	mountOptions := []systemFuse.MountOption{
 		systemFuse.ReadOnly(),
-		systemFuse.FSName("restic"),
+		systemFuse.FSName(fuseMountName),
 		systemFuse.MaxReadahead(128 * 1024),
 	}