view contrib/python-hook-examples.py @ 21619:292331e906d7

bundle2: rename b2x:error:unknownpart to b2x:error:unsupportedcontent

This is a backward compatibility breakage per se. But bundle2 was explicitly
flagged as experimental, and this is one an error path anyway. So the worse
possible outcome from this change is to still have a crash but with a different
message.

'''
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)))