view contrib/python-hook-examples.py @ 42730:92ac6b1697a7

flagutil: move REVIDX_KNOWN_FLAGS source of truth in flagutil (API)

Since REVIDX_KNOWN_FLAGS is "not really a constant" (extension can update it)
and python integer,... it needs to be the responsability of a single module and
always accessed through the module. We update all the user and move the source
of truth in flagutil.

'''
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.changelog.tip()
    else:
        last = node
    diff = patch.diff(repo, first, last)
    ui.write(patch.diffstat(util.iterlines(diff)))