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- // Copyright 2015 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 (
- "bytes"
- "sort"
- "strings"
- )
-
- // Tag represents a Git tag.
- type Tag struct {
- Name string
- ID SHA1
- repo *Repository
- Object SHA1 // The id of this commit object
- Type string
- Tagger *Signature
- Message string
- }
-
- // Commit return the commit of the tag reference
- func (tag *Tag) Commit() (*Commit, error) {
- return tag.repo.getCommit(tag.Object)
- }
-
- // Parse commit information from the (uncompressed) raw
- // data from the commit object.
- // \n\n separate headers from message
- func parseTagData(data []byte) (*Tag, error) {
- tag := new(Tag)
- // we now have the contents of the commit object. Let's investigate...
- nextline := 0
- l:
- for {
- eol := bytes.IndexByte(data[nextline:], '\n')
- switch {
- case eol > 0:
- line := data[nextline : nextline+eol]
- spacepos := bytes.IndexByte(line, ' ')
- reftype := line[:spacepos]
- switch string(reftype) {
- case "object":
- id, err := NewIDFromString(string(line[spacepos+1:]))
- if err != nil {
- return nil, err
- }
- tag.Object = id
- case "type":
- // A commit can have one or more parents
- tag.Type = string(line[spacepos+1:])
- case "tagger":
- sig, err := newSignatureFromCommitline(line[spacepos+1:])
- if err != nil {
- return nil, err
- }
- tag.Tagger = sig
- }
- nextline += eol + 1
- case eol == 0:
- tag.Message = strings.TrimRight(string(data[nextline+1:]), "\n")
- break l
- default:
- break l
- }
- }
- return tag, nil
- }
-
- type tagSorter []*Tag
-
- func (ts tagSorter) Len() int {
- return len([]*Tag(ts))
- }
-
- func (ts tagSorter) Less(i, j int) bool {
- return []*Tag(ts)[i].Tagger.When.After([]*Tag(ts)[j].Tagger.When)
- }
-
- func (ts tagSorter) Swap(i, j int) {
- []*Tag(ts)[i], []*Tag(ts)[j] = []*Tag(ts)[j], []*Tag(ts)[i]
- }
-
- // sortTagsByTime
- func sortTagsByTime(tags []*Tag) {
- sorter := tagSorter(tags)
- sort.Sort(sorter)
- }
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