view contrib/python-hook-examples.py @ 35467:d6cfa722b044

templater: look up mapping table through template engine

These functions are stub for symbol/resource separation. This series is
intended to address the following problems:

 a) internal data may be exposed to user (issue5699)
 b) defaults['repo'] (a repository name) will conflict with mapping['repo']
    (a repo object) in hgweb

'''
Examples of useful python hooks for Mercurial.
'''
from __future__ import absolute_import
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)))