view contrib/python-hook-examples.py @ 15194:0705f2ac79d6

import: simplify status reporting logic (and make it more I18N-friendly)

The old code printed (with ui.status()) the changeset ID created by
patch N after committing patch N+1, e.g.

  applying patch1
  applying patch2
  applied 1d4bd90af0e4

where 1d4bd90af0e4 is the changeset ID resulting from patch1. That's
just weird. It's also inconsistent: we only reported the changeset ID
when applying >1 patches. And it's inconsistent with 'commit', which
only tells you the new changeset ID in verbose mode. Finally, the
existing code was I18N-hostile, since it concatenated translated
strings.

The new way is to print the just-created changeset ID with ui.note()
immediately after committing it. It also clarifies what the user
message is for easier I18N.

'''
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)))