NODEGIT-向特定提交添加注释以存储元数据

我读过 git-notes nodegit

目前我正在进行这样的回购,效果很好

        // git add --all
        let repo = await Git.Repository.open(pathToSomewhere);
        let index = await repo.index();
        await index.addAll();
        await index.write();
        let oid = await index.writeTree();

        // git commit -am ...
        let commitAuthor = Git.Signature.now(authorName, authorEmail);

        if (initial){
            await repo.createCommit("HEAD", commitAuthor, commitAuthor, commitMessage, oid, []);
        } else {
            let head = await Git.Reference.nameToId(repo, "HEAD");
            let parent = await repo.getCommit(head);

            await repo.createCommit("HEAD", commitAuthor, commitAuthor, commitMessage, oid, [parent]);
        }

我想补充一点 Note 到那

        let repo = await Git.Repository.open(pathToSomewhere),
            revWalk = repo.createRevWalk();

        revWalk.sorting(Git.Revwalk.SORT.REVERSE);
        revWalk.pushHead(); // places us at the last commit

        let commits = await revWalk.getCommits();
        let history = [];

        for (let co = 0; co < commits.length; co++){
            let commit = commits[co];
            history.push({
                sha: commit.sha(),
                comment: commit.message(),
                author: commit.author().toString(0),
                date: commit.date()
            });
        }

我该怎么做?