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- // 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.
-
- //go:build gogit
- // +build gogit
-
- package git
-
- import (
- "context"
- "io/ioutil"
-
- "code.gitea.io/gitea/modules/log"
-
- "github.com/go-git/go-git/v5/plumbing/object"
- )
-
- // GetNote retrieves the git-notes data for a given commit.
- func GetNote(ctx context.Context, repo *Repository, commitID string, note *Note) error {
- log.Trace("Searching for git note corresponding to the commit %q in the repository %q", commitID, repo.Path)
- notes, err := repo.GetCommit(NotesRef)
- if err != nil {
- log.Error("Unable to get commit from ref %q. Error: %v", NotesRef, err)
- return err
- }
-
- remainingCommitID := commitID
- path := ""
- currentTree := notes.Tree.gogitTree
- log.Trace("Found tree with ID %q while searching for git note corresponding to the commit %q", currentTree.Entries[0].Name, commitID)
- 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 {
- if err == object.ErrDirectoryNotFound {
- return ErrNotExist{ID: remainingCommitID, RelPath: path}
- }
- log.Error("Unable to find git note corresponding to the commit %q. Error: %v", commitID, err)
- return err
- }
- }
-
- blob := file.Blob
- dataRc, err := blob.Reader()
- if err != nil {
- log.Error("Unable to read blob with ID %q. Error: %v", blob.ID, err)
- return err
- }
-
- defer dataRc.Close()
- d, err := ioutil.ReadAll(dataRc)
- if err != nil {
- log.Error("Unable to read blob with ID %q. Error: %v", blob.ID, err)
- 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(ctx, commitNode, "", []string{path})
- if err != nil {
- log.Error("Unable to get the commit for the path %q. Error: %v", path, err)
- return err
- }
- note.Commit = convertCommit(lastCommits[path])
-
- return nil
- }
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