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https://github.com/go-gitea/gitea
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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
80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
// Copyright 2019 The Gitea 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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"io/ioutil"
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"gopkg.in/src-d/go-git.v4/plumbing/object"
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)
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// NotesRef is the git ref where Gitea will look for git-notes data.
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// The value ("refs/notes/commits") is the default ref used by git-notes.
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const NotesRef = "refs/notes/commits"
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// Note stores information about a note created using git-notes.
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type Note struct {
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Message []byte
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Commit *Commit
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}
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// GetNote retrieves the git-notes data for a given commit.
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func GetNote(repo *Repository, commitID string, note *Note) error {
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notes, err := repo.GetCommit(NotesRef)
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if err != nil {
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return err
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}
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remainingCommitID := commitID
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path := ""
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currentTree := notes.Tree.gogitTree
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var file *object.File
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for len(remainingCommitID) > 2 {
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file, err = currentTree.File(remainingCommitID)
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if err == nil {
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path += remainingCommitID
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break
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}
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if err == object.ErrFileNotFound {
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currentTree, err = currentTree.Tree(remainingCommitID[0:2])
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path += remainingCommitID[0:2] + "/"
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remainingCommitID = remainingCommitID[2:]
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}
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if err != nil {
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return err
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}
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}
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blob := file.Blob
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dataRc, err := blob.Reader()
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if err != nil {
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return err
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}
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defer dataRc.Close()
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d, err := ioutil.ReadAll(dataRc)
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if err != nil {
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return err
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}
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note.Message = d
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commitNodeIndex, commitGraphFile := repo.CommitNodeIndex()
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if commitGraphFile != nil {
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defer commitGraphFile.Close()
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}
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commitNode, err := commitNodeIndex.Get(notes.ID)
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if err != nil {
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return err
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}
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lastCommits, err := getLastCommitForPaths(commitNode, "", []string{path})
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if err != nil {
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return err
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}
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note.Commit = convertCommit(lastCommits[path])
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return nil
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}
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