view contrib/python-hook-examples.py @ 37506:c4131138eadb

histedit: look up partial nodeid as partial nodeid

I'm about to remove support for repo[<partial hex nodeid>]. In the
verify() method, we know that self.node is always a partial or full
binary nodeid, so the most correct way to look up the revision is by
using changelog._partialmatch(), so let's do that. (It's closer to the
current code to do scmutil.revsymbol(), but that's less correct
because it will match a bookmark or tag that happens to have the same
prefix as the node.)

Differential Revision: https://phab.mercurial-scm.org/D3158

'''
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)))