From ad3508106676067e66261bfa2cb2eea0e10d1b47 Mon Sep 17 00:00:00 2001
From: Alexander Marshalov <_@marshalov.org>
Date: Tue, 16 May 2023 14:21:56 +0200
Subject: [PATCH] backup metadata are written in separate file (#560)

Signed-off-by: Alexander Marshalov <_@marshalov.org>
---
 lib/backup/actions/backup.go    | 6 +++++-
 lib/backup/fscommon/fscommon.go | 3 +++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/backup/actions/backup.go b/lib/backup/actions/backup.go
index 5c6c80df96..108cd36307 100644
--- a/lib/backup/actions/backup.go
+++ b/lib/backup/actions/backup.go
@@ -79,6 +79,10 @@ func (b *Backup) Run() error {
 	if err := storeMetadata(src, dst); err != nil {
 		return fmt.Errorf("cannot store backup metadata: %w", err)
 	}
+	if err := dst.CreateFile(fscommon.BackupCompleteFilename, []byte{}); err != nil {
+		return fmt.Errorf("cannot create `backup complete` file at %s: %w", dst, err)
+	}
+
 	return nil
 }
 
@@ -99,7 +103,7 @@ func storeMetadata(src *fslocal.FS, dst common.RemoteFS) error {
 		return fmt.Errorf("cannot marshal metadata: %w", err)
 	}
 
-	if err := dst.CreateFile(fscommon.BackupCompleteFilename, metadata); err != nil {
+	if err := dst.CreateFile(fscommon.BackupMetadataFilename, metadata); err != nil {
 		return fmt.Errorf("cannot create `backup complete` file at %s: %w", dst, err)
 	}
 
diff --git a/lib/backup/fscommon/fscommon.go b/lib/backup/fscommon/fscommon.go
index 8897cc6b8b..f76eb81ce7 100644
--- a/lib/backup/fscommon/fscommon.go
+++ b/lib/backup/fscommon/fscommon.go
@@ -235,3 +235,6 @@ func IgnorePath(path string) bool {
 
 // BackupCompleteFilename is a filename, which is created in the destination fs when backup is complete.
 const BackupCompleteFilename = "backup_complete.ignore"
+
+// BackupMetadataFilename is a filename, which contains metadata for the backup.
+const BackupMetadataFilename = "backup_metadata.ignore"