Today, I did a nice hack using Darcs to make a Lines of Code statistic.
Darcs provides a command—darcs trackdown—that gets run on every
revision of the repository until the given command returns true.
Usually, you’d use that to “trackdown” a certain bug by running the
testcase on every revision.
However, trackdown also provides a nice way to simply run an
command over each revision. I ran this on the darcs repository:
darcs trackdown 'find . -type f -print | xargs wc -l |
tail -1 | tee -a /tmp/darcsloc; false'
Note the false, so it will always “fail”.
Now twiddle with that data a bit, and you can quite easily get a diagram like:
(The “vertical lines” are time skews of the Darcs changelog, as patches only have a “record time”, not a “merge time”…)
NP: Neil Young—My My, Hey Hey