view contrib/python-hook-examples.py @ 24841:45bd336e3991 stable

revert: accept just -I/-X without paths or -a/-i (issue4592)

'hg revert -I foo' currently fails with

  abort: no files or directories specified
  (use --all to revert all files, or 'hg update 1' to update)

It doesn't seem intentional that -I/-X without other paths or
--all/--interactive should fail, and it doesn't seem that harmful to
allow it either, so let's just do that.

'''
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)))