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gitea/modules/git/notes_nogogit.go
zeripath 23358bc55d
Use git log name-status in get last commit (#16059)
* Improve get last commit using git log --name-status

git log --name-status -c provides information about the diff between a
commit and its parents. Using this and adjusting the algorithm to use
the first change to a path allows for a much faster generation of commit
info.

There is a subtle change in the results generated but this will cause
the results to more closely match those from elsewhere.

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: Lauris BH <lauris@nix.lv>
2021-06-21 01:00:46 +03:00

75 lines
1.3 KiB
Go

// 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.
// +build !gogit
package git
import (
"context"
"io/ioutil"
"strings"
)
// GetNote retrieves the git-notes data for a given commit.
func GetNote(ctx context.Context, repo *Repository, commitID string, note *Note) error {
notes, err := repo.GetCommit(NotesRef)
if err != nil {
return err
}
path := ""
tree := &notes.Tree
var entry *TreeEntry
for len(commitID) > 2 {
entry, err = tree.GetTreeEntryByPath(commitID)
if err == nil {
path += commitID
break
}
if IsErrNotExist(err) {
tree, err = tree.SubTree(commitID[0:2])
path += commitID[0:2] + "/"
commitID = commitID[2:]
}
if err != nil {
return err
}
}
dataRc, err := entry.Blob().DataAsync()
if err != nil {
return err
}
closed := false
defer func() {
if !closed {
_ = dataRc.Close()
}
}()
d, err := ioutil.ReadAll(dataRc)
if err != nil {
return err
}
_ = dataRc.Close()
closed = true
note.Message = d
treePath := ""
if idx := strings.LastIndex(path, "/"); idx > -1 {
treePath = path[:idx]
path = path[idx+1:]
}
lastCommits, err := GetLastCommitForPaths(ctx, notes, treePath, []string{path})
if err != nil {
return err
}
note.Commit = lastCommits[path]
return nil
}