Avoid creating directories when loading config (#25944) (#25957)

Backport #25944

The "creating dir/file during load config" is a longstanding and complex
problem.

This PR only does a quick patch, it still needs more refactorings in the
future.

Fix #25938

modules/setting/packages.go

@@ -74,8 +74,10 @@ func loadPackagesFrom(rootCfg ConfigProvider) (err error) {
 		Packages.ChunkedUploadPath = filepath.ToSlash(filepath.Join(AppDataPath, Packages.ChunkedUploadPath))
 	}
 
-	if err := os.MkdirAll(Packages.ChunkedUploadPath, os.ModePerm); err != nil {
+	if HasInstallLock(rootCfg) {
-		return fmt.Errorf("unable to create chunked upload directory: %s (%v)", Packages.ChunkedUploadPath, err)
+		if err := os.MkdirAll(Packages.ChunkedUploadPath, os.ModePerm); err != nil {
+			return fmt.Errorf("unable to create chunked upload directory: %s (%v)", Packages.ChunkedUploadPath, err)
+		}
 	}
 
 	Packages.LimitTotalOwnerSize = mustBytes(sec, "LIMIT_TOTAL_OWNER_SIZE")