Question

Hy i am trying to get all the commits that include a specific directory or file of my repository.

I tried the folowing code :

public PlotCommitList getPlotCommits(String path){
    System.out.println(path);
    PlotCommitList<PlotLane> plotCommitList = new PlotCommitList<PlotLane>();
    PlotWalk revWalk = new PlotWalk(repository);
    try {

        ObjectId rootId = repository.resolve("HEAD");
        if (rootId != null) {
            RevCommit root = revWalk.parseCommit(rootId);
            revWalk.markStart(root);
            revWalk.setTreeFilter(PathFilter.create(path));
            plotCommitList.source(revWalk);
            plotCommitList.fillTo(Integer.MAX_VALUE);
            return plotCommitList;
        }

    } catch (AmbiguousObjectException ex) {
        Logger.getLogger(GitRepository.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(GitRepository.class.getName()).log(Level.SEVERE, null, ex);
    }
    return plotCommitList;
}

I don’t get just the commits that affected that file. I get some “subLists” of the entire list but not just those commits that affected that file.

Maybe TreeFilter doesn’t work how i think? I should use other way to get those commits?
I saw the log command has a path filter but i didn’t tried it yet because it returns a RevCommit list and for my PlotCommitList i need a revwalk to use as a source. And also i think i cannot cast RevCommit to PlotCommit.

A guy had the same problem here (1st Answer with fileA and fileB issue) : Link – Click Here

Answer 1

You need to combine the PathFilter with an ANY_DIFF filter:

revWalk.setTreeFilter(
    AndTreeFilter.create(PathFilter.create(path), TreeFilter.ANY_DIFF));

With only PathFilter I think what happens is that all commits are selected where the specified tree exists (e.g. all commits starting from the initial commit of that file).

Also see the API docs of setTreeFilter or how the LogCommand does it.