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Re: [jgit-dev] rename detection working

2010/7/4 Shawn O. Pearce <spearce@xxxxxxxxxxx>
Folks, we now have rename detection in JGit.  Its working pretty
well already.  It could be faster, blah blah blah, but it seems
pretty solid thus far.

For example:

$ jgit log --name-status --follow builtin/fsck.c | grep ^R
R100    builtin-fsck.c  builtin/fsck.c
R099    fsck.c  builtin-fsck.c
R099    fsck-objects.c  fsck.c
R099    fsck-cache.c    fsck-objects.c


The code to use it is pretty simple.  Assuming you already have a
properly configured TreeWalk for the difference you want to view:

 RenameDetector rd = new RenameDetector(repository);
 List<DiffEntry> files = rd.compute();

And then traverse over that file set.  Since compute can be very
long running (due to the O(N^2) nature of the rename algorithm),
you can also pass it a ProgressMonitor.

Patches are on Gerrit pending review.  Some major highlights from
the series are: : bulk of the rename detector : log --follow

Wow, this was a fast win :-)

I think we need CQs for some of Jeff's changes (some have already been merged), 
or can they pass IP clearance with PMC approval ? 


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