view contrib/python-hook-examples.py @ 22966:ff93aa006e6a

manifest: transpose pair of pairs from diff()

It makes more sense for the file nodeids and returned from diff() to
be ((n1,fl1),(n2,fl2)) than ((n1,n2),(fl1,fl2)), so change it to the
former.

'''
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)))