Fix LFS file not stored in LFS when uploaded/edited via API or web UI

modules/git/attribute/batch.go

@@ -36,7 +36,7 @@ func NewBatchChecker(repo *git.Repository, treeish string, attributes []string)
 		}
 	}()
 
-	cmd, envs, cleanup, err := checkAttrCommand(repo, treeish, nil, attributes)
+	cmd, envs, cleanup, err := checkAttrCommand(repo, treeish, nil, attributes, false)
 	if err != nil {
 		return nil, err
 	}

modules/git/attribute/checker.go

@@ -13,7 +13,7 @@ import (
 	"code.gitea.io/gitea/modules/git"
 )
 
-func checkAttrCommand(gitRepo *git.Repository, treeish string, filenames, attributes []string) (*git.Command, []string, func(), error) {
+func checkAttrCommand(gitRepo *git.Repository, treeish string, filenames, attributes []string, cached bool) (*git.Command, []string, func(), error) {
 	cancel := func() {}
 	envs := []string{"GIT_FLUSH=1"}
 	cmd := git.NewCommand("check-attr", "-z")
@@ -39,6 +39,8 @@ func checkAttrCommand(gitRepo *git.Repository, treeish string, filenames, attrib
 			)
 			cancel = deleteTemporaryFile
 		}
+	} else if cached {
+		cmd.AddArguments("--cached")
 	} // else: no treeish, assume it is a not a bare repo, read from working directory
 
 	cmd.AddDynamicArguments(attributes...)
@@ -51,12 +53,13 @@ func checkAttrCommand(gitRepo *git.Repository, treeish string, filenames, attrib
 type CheckAttributeOpts struct {
 	Filenames  []string
 	Attributes []string
+	Cached     bool
 }
 
 // CheckAttributes return the attributes of the given filenames and attributes in the given treeish.
 // If treeish is empty, then it will use current working directory, otherwise it will use the provided treeish on the bare repo
 func CheckAttributes(ctx context.Context, gitRepo *git.Repository, treeish string, opts CheckAttributeOpts) (map[string]*Attributes, error) {
-	cmd, envs, cancel, err := checkAttrCommand(gitRepo, treeish, opts.Filenames, opts.Attributes)
+	cmd, envs, cancel, err := checkAttrCommand(gitRepo, treeish, opts.Filenames, opts.Attributes, opts.Cached)
 	if err != nil {
 		return nil, err
 	}

services/repository/files/update.go

@@ -492,9 +492,11 @@ func CreateOrUpdateFile(ctx context.Context, t *TemporaryUploadRepository, file
 	var lfsMetaObject *git_model.LFSMetaObject
 	if setting.LFS.StartServer && hasOldBranch {
 		// Check there is no way this can return multiple infos
-		attributesMap, err := attribute.CheckAttributes(ctx, t.gitRepo, "" /* use temp repo's working dir */, attribute.CheckAttributeOpts{
+		attributesMap, err := attribute.CheckAttributes(ctx, t.gitRepo, "", attribute.CheckAttributeOpts{
 			Attributes: []string{attribute.Filter},
 			Filenames:  []string{file.Options.treePath},
+			// An index is set, so it's okay to list the attributes from it
+			Cached: true,
 		})
 		if err != nil {
 			return err

services/repository/files/upload.go

@@ -107,10 +107,12 @@ func UploadRepoFiles(ctx context.Context, repo *repo_model.Repository, doer *use
 	}
 
 	var attributesMap map[string]*attribute.Attributes
-	if setting.LFS.StartServer {
-		attributesMap, err = attribute.CheckAttributes(ctx, t.gitRepo, "" /* use temp repo's working dir */, attribute.CheckAttributeOpts{
+	if setting.LFS.StartServer && hasOldBranch {
+		attributesMap, err = attribute.CheckAttributes(ctx, t.gitRepo, "", attribute.CheckAttributeOpts{
 			Attributes: []string{attribute.Filter},
 			Filenames:  names,
+			// An index is set, so it's okay to list the attributes from it
+			Cached: true,
 		})
 		if err != nil {
 			return err