mirror of
https://github.com/go-gitea/gitea.git
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2a565478d1
Unfortunately some old repositories can have tags with empty Tagger, Commit or Author. Go-Git variants will always have empty values for these whereas the native git variant leaves them at nil. The simplest solution is just to always have these set to empty Signatures. v156 migration also makes the incorrect assumption that these cannot be empty. Therefore add some handling to this and add logging and adjust broken logging elsewhere in this migration. Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: techknowlogick <techknowlogick@gitea.io>
107 lines
2.5 KiB
Go
107 lines
2.5 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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"sort"
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"strings"
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)
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const beginpgp = "\n-----BEGIN PGP SIGNATURE-----\n"
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const endpgp = "\n-----END PGP SIGNATURE-----"
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// Tag represents a Git tag.
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type Tag struct {
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Name string
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ID SHA1
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repo *Repository
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Object SHA1 // The id of this commit object
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Type string
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Tagger *Signature
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Message string
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Signature *CommitGPGSignature
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}
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// Commit return the commit of the tag reference
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func (tag *Tag) Commit() (*Commit, error) {
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return tag.repo.getCommit(tag.Object)
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}
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// Parse commit information from the (uncompressed) raw
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// data from the commit object.
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// \n\n separate headers from message
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func parseTagData(data []byte) (*Tag, error) {
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tag := new(Tag)
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tag.Tagger = &Signature{}
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// we now have the contents of the commit object. Let's investigate...
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nextline := 0
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l:
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for {
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eol := bytes.IndexByte(data[nextline:], '\n')
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switch {
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case eol > 0:
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line := data[nextline : nextline+eol]
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spacepos := bytes.IndexByte(line, ' ')
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reftype := line[:spacepos]
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switch string(reftype) {
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case "object":
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id, err := NewIDFromString(string(line[spacepos+1:]))
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if err != nil {
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return nil, err
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}
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tag.Object = id
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case "type":
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// A commit can have one or more parents
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tag.Type = string(line[spacepos+1:])
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case "tagger":
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sig, err := newSignatureFromCommitline(line[spacepos+1:])
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if err != nil {
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return nil, err
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}
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tag.Tagger = sig
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}
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nextline += eol + 1
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case eol == 0:
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tag.Message = string(data[nextline+1:])
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break l
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default:
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break l
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}
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}
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idx := strings.LastIndex(tag.Message, beginpgp)
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if idx > 0 {
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endSigIdx := strings.Index(tag.Message[idx:], endpgp)
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if endSigIdx > 0 {
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tag.Signature = &CommitGPGSignature{
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Signature: tag.Message[idx+1 : idx+endSigIdx+len(endpgp)],
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Payload: string(data[:bytes.LastIndex(data, []byte(beginpgp))+1]),
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}
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tag.Message = tag.Message[:idx+1]
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}
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}
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return tag, nil
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}
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type tagSorter []*Tag
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func (ts tagSorter) Len() int {
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return len([]*Tag(ts))
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}
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func (ts tagSorter) Less(i, j int) bool {
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return []*Tag(ts)[i].Tagger.When.After([]*Tag(ts)[j].Tagger.When)
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}
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func (ts tagSorter) Swap(i, j int) {
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[]*Tag(ts)[i], []*Tag(ts)[j] = []*Tag(ts)[j], []*Tag(ts)[i]
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}
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// sortTagsByTime
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func sortTagsByTime(tags []*Tag) {
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sorter := tagSorter(tags)
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sort.Sort(sorter)
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}
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