1 files changed, 72 insertions, 0 deletions
diff --git a/modules/git/notes_gogit.go b/modules/git/notes_gogit.go
new file mode 100644
index 0000000000..173d29cee6
--- /dev/null
+++ b/modules/git/notes_gogit.go
@@ -0,0 +1,72 @@
+// 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 (
+	"io/ioutil"
+
+	"github.com/go-git/go-git/v5/plumbing/object"
+)
+
+// 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
+}