From f1848e48b83d9a095944697e0bd56bf79e530f5e Mon Sep 17 00:00:00 2001
From: Axel Wagner <mail+git2go@merovius.de>
Date: Fri, 26 Apr 2013 21:12:27 +0200
Subject: [PATCH] Implement most of the oid_-functions as Methods

---
 git.go | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/git.go b/git.go
index 68712d4..45806c2 100644
--- a/git.go
+++ b/git.go
@@ -7,6 +7,7 @@ package git
 */
 import "C"
 import (
+	"bytes"
 	"unsafe"
 )
 
@@ -67,6 +68,33 @@ func (oid *Oid) Bytes() []byte {
 	return oid.bytes[0:]
 }
 
+func (oid *Oid) Cmp(oid2 *Oid) int {
+	return bytes.Compare(oid.bytes[:], oid2.bytes[:])
+}
+
+func (oid *Oid) Copy() *Oid {
+	ret := new(Oid)
+	copy(ret.bytes[:], oid.bytes[:])
+	return ret
+}
+
+func (oid *Oid) Equal(oid2 *Oid) bool {
+	return bytes.Equal(oid.bytes[:], oid2.bytes[:])
+}
+
+func (oid *Oid) IsZero() bool {
+	for _, a := range(oid.bytes) {
+		if a != '0' {
+			return false
+		}
+	}
+	return true
+}
+
+func (oid *Oid) NCmp(oid2 *Oid, n uint) int {
+	return bytes.Compare(oid.bytes[:n], oid2.bytes[:n])
+}
+
 type GitError struct {
 	Message string
 	Code int