1 files changed, 52 insertions, 0 deletions
diff --git a/services/doctor/lfs.go b/services/doctor/lfs.go
new file mode 100644
index 0000000..8531b7b
--- /dev/null
+++ b/services/doctor/lfs.go
@@ -0,0 +1,52 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package doctor
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/services/repository"
+)
+
+func init() {
+	Register(&Check{
+		Title:                      "Garbage collect LFS",
+		Name:                       "gc-lfs",
+		IsDefault:                  false,
+		Run:                        garbageCollectLFSCheck,
+		AbortIfFailed:              false,
+		SkipDatabaseInitialization: false,
+		Priority:                   1,
+	})
+}
+
+func garbageCollectLFSCheck(ctx context.Context, logger log.Logger, autofix bool) error {
+	if !setting.LFS.StartServer {
+		return fmt.Errorf("LFS support is disabled")
+	}
+
+	if err := repository.GarbageCollectLFSMetaObjects(ctx, repository.GarbageCollectLFSMetaObjectsOptions{
+		LogDetail: logger.Info,
+		AutoFix:   autofix,
+		// Only attempt to garbage collect lfs meta objects older than a week as the order of git lfs upload
+		// and git object upload is not necessarily guaranteed. It's possible to imagine a situation whereby
+		// an LFS object is uploaded but the git branch is not uploaded immediately, or there are some rapid
+		// changes in new branches that might lead to lfs objects becoming temporarily unassociated with git
+		// objects.
+		//
+		// It is likely that a week is potentially excessive but it should definitely be enough that any
+		// unassociated LFS object is genuinely unassociated.
+		OlderThan: time.Now().Add(-24 * time.Hour * 7),
+		// We don't set the UpdatedLessRecentlyThan because we want to do a full GC
+	}); err != nil {
+		logger.Error("Couldn't garabage collect LFS objects: %v", err)
+		return err
+	}
+
+	return checkStorage(&checkStorageOptions{LFS: true})(ctx, logger, autofix)
+}