lfsutil: add `Storager` interface and local storage (#6083)

* Add Storager interface

* Add tests

* Add back note

* Add tests for basic protocol routes

* Fix lint errors

1 files changed, 31 insertions, 0 deletions

diff --git a/internal/testutil/noop_logger.go b/internal/testutil/noop_logger.go
new file mode 100644
index 00000000..bf536f3f
--- /dev/null
+++ b/internal/testutil/noop_logger.go
@@ -0,0 +1,31 @@
+// Copyright 2020 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package testutil
+
+import (
+	log "unknwon.dev/clog/v2"
+)
+
+var _ log.Logger = (*noopLogger)(nil)
+
+// noopLogger is a placeholder logger that logs nothing.
+type noopLogger struct{}
+
+func (l *noopLogger) Name() string {
+	return "noop"
+}
+
+func (l *noopLogger) Level() log.Level {
+	return log.LevelTrace
+}
+
+func (l *noopLogger) Write(log.Messager) error {
+	return nil
+}
+
+// InitNoopLogger is a init function to initialize a noop logger.
+var InitNoopLogger = func(name string, vs ...interface{}) (log.Logger, error) {
+	return &noopLogger{}, nil
+}