From 61b368ddead8f764504a3ef1e0749ff5bc2aba4b Mon Sep 17 00:00:00 2001
From: Michael Eischer <michael.eischer@fau.de>
Date: Sun, 2 Aug 2020 12:17:23 +0200
Subject: [PATCH] cat: only load index if really necessary

---
 cmd/restic/cmd_cat.go | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/cmd/restic/cmd_cat.go b/cmd/restic/cmd_cat.go
index a9ee82d8c..8d31fa257 100644
--- a/cmd/restic/cmd_cat.go
+++ b/cmd/restic/cmd_cat.go
@@ -69,7 +69,6 @@ func runCat(gopts GlobalOptions, args []string) error {
 		}
 	}
 
-	// handle all types that don't need an index
 	switch tpe {
 	case "config":
 		buf, err := json.MarshalIndent(repo.Config(), "", "  ")
@@ -142,15 +141,7 @@ func runCat(gopts GlobalOptions, args []string) error {
 
 		Println(string(buf))
 		return nil
-	}
 
-	// load index, handle all the other types
-	err = repo.LoadIndex(gopts.ctx)
-	if err != nil {
-		return err
-	}
-
-	switch tpe {
 	case "pack":
 		h := restic.Handle{Type: restic.PackFile, Name: id.String()}
 		buf, err := backend.LoadAll(gopts.ctx, nil, repo.Backend(), h)
@@ -167,6 +158,11 @@ func runCat(gopts GlobalOptions, args []string) error {
 		return err
 
 	case "blob":
+		err = repo.LoadIndex(gopts.ctx)
+		if err != nil {
+			return err
+		}
+
 		for _, t := range []restic.BlobType{restic.DataBlob, restic.TreeBlob} {
 			bh := restic.BlobHandle{ID: id, Type: t}
 			if !repo.Index().Has(bh) {