contrib/python-hook-examples.py

test-convert-cvs: filter unstable cvs output.

The order choosen by cvs to display commit is not stable when the tests are run
under heavy CPU/IO load. This leads to irrelevant failures of the test suite.
This changeset filters four lines impacted by this instability. The result of
the conversion is still verified.

'''
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)))