view contrib/python-hook-examples.py @ 24827:2f2de8a7f97f stable

test-hook.t: don't directly use redirect to /dev/null in hook for Windows

This goes with 57f1dbc99631.  External hooks are run in cmd.exe, which doesn't
know about /dev/null, but sh can handle it.

'''
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)))