view contrib/python-hook-examples.py @ 8259:98acfd1d2b08

ui: replace regexp pattern with sequence of choices

Use ampersands (&) to delineate the response char in each choice.
ui.prompt() responses are now explicitly case insensitive.  GUIs
that subclass ui can generate dialogs from the full choice names.

'''
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].parents()[0].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)))