view contrib/python-hook-examples.py @ 14369:f8932d540088

patch: handle binary copies as regular ones

This introduces a performance regression for large files, as they will be
copied just to be clobbered afterwards since binary patching does not use
deltas.  But it simplifies the code and the previous optimization will be
reintroduced later in a better way.

'''
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)))