move out git module and #1573 send push hook

modules/git/sha1.go

@@ -1,87 +0,0 @@
-// Copyright 2014 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 git
-
-import (
-	"encoding/hex"
-	"errors"
-	"fmt"
-	"strings"
-)
-
-var (
-	IDNotExist = errors.New("sha1 ID does not exist")
-)
-
-type sha1 [20]byte
-
-// Return true if s has the same sha1 as caller.
-// Support 40-length-string, []byte, sha1
-func (id sha1) Equal(s2 interface{}) bool {
-	switch v := s2.(type) {
-	case string:
-		if len(v) != 40 {
-			return false
-		}
-		return v == id.String()
-	case []byte:
-		if len(v) != 20 {
-			return false
-		}
-		for i, v := range v {
-			if id[i] != v {
-				return false
-			}
-		}
-	case sha1:
-		for i, v := range v {
-			if id[i] != v {
-				return false
-			}
-		}
-	default:
-		return false
-	}
-	return true
-}
-
-// Return string (hex) representation of the Oid
-func (s sha1) String() string {
-	result := make([]byte, 0, 40)
-	hexvalues := []byte("0123456789abcdef")
-	for i := 0; i < 20; i++ {
-		result = append(result, hexvalues[s[i]>>4])
-		result = append(result, hexvalues[s[i]&0xf])
-	}
-	return string(result)
-}
-
-// Create a new sha1 from a 20 byte slice.
-func NewId(b []byte) (sha1, error) {
-	var id sha1
-	if len(b) != 20 {
-		return id, errors.New("Length must be 20")
-	}
-
-	for i := 0; i < 20; i++ {
-		id[i] = b[i]
-	}
-	return id, nil
-}
-
-// Create a new sha1 from a Sha1 string of length 40.
-func NewIdFromString(s string) (sha1, error) {
-	s = strings.TrimSpace(s)
-	var id sha1
-	if len(s) != 40 {
-		return id, fmt.Errorf("Length must be 40")
-	}
-	b, err := hex.DecodeString(s)
-	if err != nil {
-		return id, err
-	}
-
-	return NewId(b)
-}