d578b71d61
* move code.gitea.io/git to code.gitea.io/gitea/modules/git * fix imports * fix fmt * fix misspell * remove wrong tests data * fix unit tests * fix tests * fix tests * fix tests * fix tests * fix tests * enable Debug to trace the failure tests * fix tests * fix tests * fix tests * fix tests * fix tests * comment commit count tests since git clone depth is 50 * fix tests * update from code.gitea.io/git * revert change to makefile
76 lines
1.7 KiB
Go
76 lines
1.7 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package git
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import (
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"bytes"
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"encoding/hex"
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"fmt"
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"strings"
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)
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// EmptySHA defines empty git SHA
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const EmptySHA = "0000000000000000000000000000000000000000"
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// SHA1 a git commit name
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type SHA1 [20]byte
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// Equal returns true if s has the same SHA1 as caller.
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// Support 40-length-string, []byte, SHA1.
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func (id SHA1) Equal(s2 interface{}) bool {
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switch v := s2.(type) {
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case string:
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if len(v) != 40 {
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return false
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}
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return v == id.String()
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case []byte:
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return bytes.Equal(v, id[:])
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case SHA1:
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return v == id
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default:
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return false
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}
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}
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// String returns string (hex) representation of the Oid.
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func (id SHA1) String() string {
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return hex.EncodeToString(id[:])
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}
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// MustID always creates a new SHA1 from a [20]byte array with no validation of input.
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func MustID(b []byte) SHA1 {
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var id SHA1
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copy(id[:], b)
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return id
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}
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// NewID creates a new SHA1 from a [20]byte array.
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func NewID(b []byte) (SHA1, error) {
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if len(b) != 20 {
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return SHA1{}, fmt.Errorf("Length must be 20: %v", b)
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}
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return MustID(b), nil
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}
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// MustIDFromString always creates a new sha from a ID with no validation of input.
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func MustIDFromString(s string) SHA1 {
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b, _ := hex.DecodeString(s)
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return MustID(b)
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}
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// NewIDFromString creates a new SHA1 from a ID string of length 40.
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func NewIDFromString(s string) (SHA1, error) {
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var id SHA1
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s = strings.TrimSpace(s)
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if len(s) != 40 {
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return id, fmt.Errorf("Length must be 40: %s", s)
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}
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b, err := hex.DecodeString(s)
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if err != nil {
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return id, err
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}
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return NewID(b)
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}
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