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Home » Eclipse Projects » EGit / JGit » [jgit] Find Commits for Notes([jgit] Find Commits for Notes)
[jgit] Find Commits for Notes [message #759323] Mon, 28 November 2011 11:35 Go to next message
Lars Ohlen is currently offline Lars OhlenFriend
Messages: 3
Registered: October 2011
Location: Sweden
Junior Member


I'm investigating on how to use the Notes feature in Git.
(e.g. having the ability to add meta data to a Commit without altering the revision tree)

JGit has some basic API support for Notes (add notes and list notes), but not no search API. I have the need to find the commit id for a specific Note entry!

I using some low-level JGit APIs find the object id for the Notes, but would like
to find to which Commit this Note object id belongs to.

Any ideas or hints appreciated.



Re: [jgit] Find Commits for Notes [message #759902 is a reply to message #759323] Wed, 30 November 2011 14:06 Go to previous message
Christian Halstrick is currently offline Christian HalstrickFriend
Messages: 18
Registered: July 2009
Junior Member
The name of a Note is the id of the object the note was attached to. See this

Git repo = ...
new FileWriter(new File(repo.getRepository().getWorkTree(), "f.txt")).write("hello world");
RevCommit commit = repo.commit().setMessage("tests").call();
System.out.println("created commit with id: "+commit.getId());
repo.notesAdd().setObjectId(commit).setMessage("content of Note").call();
for (Note n : repo.notesList().call())
  System.out.println("Found note on object "+n.getName()+", data: "+n.getData());

You can also lookup the note for a specific commit by using the NoteMap class.

// better way to search for notes. Look up how to do it in
RevWalk walk = new RevWalk(repo);
NoteMap map = NoteMap.newEmptyMap();
Ref ref = repo.getRef("refs/notes/commits");
if (ref != null) {
  RevCommit notesCommit = walk.parseCommit(ref.getObjectId());
  map =, notesCommit);

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