From 09bfc69d638ae590a176a79c97a90cdc7ef53bc7 Mon Sep 17 00:00:00 2001
From: Lyndon-Li <lyonghui@vmware.com>
Date: Tue, 2 Jun 2026 17:22:29 +0800
Subject: [PATCH] add totalSize to repo snapshot

Signed-off-by: Lyndon-Li <lyonghui@vmware.com>
---
 changelogs/unreleased/9875-Lyndon-Li        | 1 +
 pkg/repository/udmrepo/kopialib/lib_repo.go | 9 ++++++++-
 pkg/repository/udmrepo/repo.go              | 1 +
 3 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 changelogs/unreleased/9875-Lyndon-Li

diff --git a/changelogs/unreleased/9875-Lyndon-Li b/changelogs/unreleased/9875-Lyndon-Li
new file mode 100644
index 000000000..c0afbee71
--- /dev/null
+++ b/changelogs/unreleased/9875-Lyndon-Li
@@ -0,0 +1 @@
+Add totalSize to repo snapshot operation; and pin unified repo snapshots to Kopia repository and so pin them with Velero backup lifecycle
\ No newline at end of file
diff --git a/pkg/repository/udmrepo/kopialib/lib_repo.go b/pkg/repository/udmrepo/kopialib/lib_repo.go
index 42e7fa1c2..12dd0f688 100644
--- a/pkg/repository/udmrepo/kopialib/lib_repo.go
+++ b/pkg/repository/udmrepo/kopialib/lib_repo.go
@@ -626,6 +626,9 @@ func (kr *kopiaRepository) SaveSnapshot(ctx context.Context, snap udmrepo.Snapsh
 		Description: snap.Description,
 		StartTime:   fs.UTCTimestampFromTime(snap.StartTime),
 		EndTime:     fs.UTCTimestampFromTime(snap.EndTime),
+		Stats: snapshot.Stats{
+			TotalFileSize: snap.TotalSize,
+		},
 		RootEntry: &snapshot.DirEntry{
 			Type:        snapshot.EntryTypeDirectory,
 			ObjectID:    rootObj,
@@ -634,9 +637,12 @@ func (kr *kopiaRepository) SaveSnapshot(ctx context.Context, snap udmrepo.Snapsh
 			FileSize:    snap.RootObject.Size,
 			UserID:      snap.RootObject.UserID,
 			GroupID:     snap.RootObject.GroupID,
+			DirSummary: &fs.DirectorySummary{
+				TotalFileSize: snap.TotalSize,
+			},
 		},
 		Tags: snap.Tags,
-		Pins: []string{"velero-pin"},
+		Pins: []string{"velero-pin"}, // pins are meant to prevent snapshot from automatic expiration/deletion.
 	}
 
 	id, err := snapshot.SaveSnapshot(ctx, kr.rawWriter, &manifest)
@@ -663,6 +669,7 @@ func (kr *kopiaRepository) GetSnapshot(ctx context.Context, id udmrepo.ID) (udmr
 		StartTime:   snap.StartTime.ToTime(),
 		EndTime:     snap.EndTime.ToTime(),
 		Tags:        snap.Tags,
+		TotalSize:   snap.Stats.TotalFileSize,
 		RootObject: udmrepo.ObjectMetadata{
 			ID:          udmrepo.ID(snap.RootEntry.ObjectID.String()),
 			Type:        udmrepo.ObjectDataTypeMetadata,
diff --git a/pkg/repository/udmrepo/repo.go b/pkg/repository/udmrepo/repo.go
index 7b47eb735..bd0e6eb19 100644
--- a/pkg/repository/udmrepo/repo.go
+++ b/pkg/repository/udmrepo/repo.go
@@ -98,6 +98,7 @@ type Snapshot struct {
 	StartTime   time.Time
 	EndTime     time.Time
 	Tags        map[string]string
+	TotalSize   int64
 	RootObject  ObjectMetadata
 }