tests: make test-hup more race-proof
We need to wait until a journal exists AND is non-empty before
aborting a transaction to get stable output. We move the kill wait
outside the fifo block to avoid potential deadlock.
'''
Examples of useful python hooks for Mercurial.
'''
from mercurial import patch, util
def diffstat(ui, repo, **kwargs):
'''Example usage:
[hooks]
commit.diffstat = python:/path/to/this/file.py:diffstat
changegroup.diffstat = python:/path/to/this/file.py:diffstat
'''
if kwargs.get('parent2'):
return
node = kwargs['node']
first = repo[node].p1().node()
if 'url' in kwargs:
last = repo['tip'].node()
else:
last = node
diff = patch.diff(repo, first, last)
ui.write(patch.diffstat(util.iterlines(diff)))