view contrib/python-hook-examples.py @ 20548:5bd6a9fec103

hooks: for python hooks, consistently use __name__ etc as name, not the repr

There is no reason to expose unnecessary Python implementation details and
memory locations, also not in debug mode.

readablefunc was already creating a nice name - we move that functionality
up and reuse it.

We consider having a __call__ and being types.FunctionType sufficiently
similar and unify these two to just using the existing check for __call__.

'''
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)))