view contrib/python-hook-examples.py @ 27580:34c3ea65d6d1

templates: support linking to main help page

Currently, the "helptopics" template assumes it is only used as the
main index and therefore doesn't hyperlink "help" in the navigation
list. Sub-topics will introduce an additional consumer of this
template. So teach the template to hyperlink the "help" navigation
entry when necessary.

'''
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)))