Skip to content
Branch: master
Find file Copy path
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
56 lines (46 sloc) 1.27 KB
// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea 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 git
import (
// EmptySHA defines empty git SHA
const EmptySHA = "0000000000000000000000000000000000000000"
// SHA1 a git commit name
type SHA1 = plumbing.Hash
// MustID always creates a new SHA1 from a [20]byte array with no validation of input.
func MustID(b []byte) SHA1 {
var id SHA1
copy(id[:], b)
return id
// NewID creates a new SHA1 from a [20]byte array.
func NewID(b []byte) (SHA1, error) {
if len(b) != 20 {
return SHA1{}, fmt.Errorf("Length must be 20: %v", b)
return MustID(b), nil
// MustIDFromString always creates a new sha from a ID with no validation of input.
func MustIDFromString(s string) SHA1 {
b, _ := hex.DecodeString(s)
return MustID(b)
// NewIDFromString creates a new SHA1 from a ID string of length 40.
func NewIDFromString(s string) (SHA1, error) {
var id SHA1
s = strings.TrimSpace(s)
if len(s) != 40 {
return id, fmt.Errorf("Length must be 40: %s", s)
b, err := hex.DecodeString(s)
if err != nil {
return id, err
return NewID(b)
You can’t perform that action at this time.