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go/src/infra/libs/git/mode.go

Index: go/src/infra/libs/git/mode.go
diff --git a/go/src/infra/libs/git/mode.go b/go/src/infra/libs/git/mode.go
new file mode 100644
index 0000000000000000000000000000000000000000..a13748c580f9b25fa0be115e9832a0a73d7bc36f
--- /dev/null
+++ b/go/src/infra/libs/git/mode.go
@@ -0,0 +1,32 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package git
+
+import (
+	"fmt"
+)
+
+// Types ///////////////////////////////////////////////////////////////////////
+
+// Mode is a typed representation of git's tree mode concept
+type Mode int
+
+// Member functions ////////////////////////////////////////////////////////////
+
+// Type returns a Object.Type() compatible string for this mode.
+func (m Mode) Type() ObjectType {
+	switch {
+	case m == 0040000:
+		return TreeType
+	case m == 0160000:
+		return CommitType
+	case (m & 0100000) != 0:
+		return BlobType
+	default:
+		return UnknownType
+	}
+}
+
+func (m Mode) String() string { return fmt.Sprintf("%06o", m) }