forked from Shiloh/githaven
52fda312df
* Fix reading notes from nested trees The GIT documentation for notes states "Permitted pathnames have the form ab/cd/ef/.../abcdef...: a sequence of directory names of two hexadecimal digits each followed by a filename with the rest of the object ID." * Add test case * Fix new lines
81 lines
1.8 KiB
Go
81 lines
1.8 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.
|
|
|
|
package git
|
|
|
|
import (
|
|
"io/ioutil"
|
|
|
|
"gopkg.in/src-d/go-git.v4/plumbing/object"
|
|
)
|
|
|
|
// NotesRef is the git ref where Gitea will look for git-notes data.
|
|
// The value ("refs/notes/commits") is the default ref used by git-notes.
|
|
const NotesRef = "refs/notes/commits"
|
|
|
|
// Note stores information about a note created using git-notes.
|
|
type Note struct {
|
|
Message []byte
|
|
Commit *Commit
|
|
}
|
|
|
|
// GetNote retrieves the git-notes data for a given commit.
|
|
func GetNote(repo *Repository, commitID string, note *Note) error {
|
|
notes, err := repo.GetCommit(NotesRef)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
remainingCommitID := commitID
|
|
path := ""
|
|
currentTree := notes.Tree.gogitTree
|
|
var file *object.File
|
|
for len(remainingCommitID) > 2 {
|
|
file, err = currentTree.File(remainingCommitID)
|
|
if err == nil {
|
|
path += remainingCommitID
|
|
break
|
|
}
|
|
if err == object.ErrFileNotFound {
|
|
currentTree, err = currentTree.Tree(remainingCommitID[0:2])
|
|
path += remainingCommitID[0:2] + "/"
|
|
remainingCommitID = remainingCommitID[2:]
|
|
}
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
blob := file.Blob
|
|
dataRc, err := blob.Reader()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer dataRc.Close()
|
|
d, err := ioutil.ReadAll(dataRc)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
note.Message = d
|
|
|
|
commitNodeIndex, commitGraphFile := repo.CommitNodeIndex()
|
|
if commitGraphFile != nil {
|
|
defer commitGraphFile.Close()
|
|
}
|
|
|
|
commitNode, err := commitNodeIndex.Get(notes.ID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
lastCommits, err := getLastCommitForPaths(commitNode, "", []string{path})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
note.Commit = convertCommit(lastCommits[path])
|
|
|
|
return nil
|
|
}
|