comparison hgext/extdiff.py @ 7758:e81e6c996e99

extdiff: add --change option to display single changeset diff

This is the counterpart for extdiff of 9c6ae2e09e11.

7757:af6a63438a8a

    - copy to a temp structure if diffing 2 internal revisions
    - copy to a temp structure if diffing working revision with
      another one and more than 1 file is changed
    - just invoke the diff for a single file in the working dir
    '''
    node1, node2 = cmdutil.revpair(repo, opts['rev'])
    matcher = cmdutil.match(repo, pats, opts)
    modified, added, removed = repo.status(node1, node2, matcher)[:3]
    if not (modified or added or removed):
        return 0

    "extdiff":
    (extdiff,
     [('p', 'program', '', _('comparison program to run')),
      ('o', 'option', [], _('pass option to comparison program')),
      ('r', 'rev', [], _('revision')),
     ] + commands.walkopts,
     _('hg extdiff [OPT]... [FILE]...')),
    }

def uisetup(ui):

7758:e81e6c996e99

    - copy to a temp structure if diffing 2 internal revisions
    - copy to a temp structure if diffing working revision with
      another one and more than 1 file is changed
    - just invoke the diff for a single file in the working dir
    '''

    revs = opts.get('rev')
    change = opts.get('change')

    if revs and change:
        msg = _('cannot specify --rev and --change at the same time')
        raise util.Abort(msg)
    elif change:
        node2 = repo.lookup(change)
        node1 = repo[node2].parents()[0].node()
    else:
        node1, node2 = cmdutil.revpair(repo, revs)

    matcher = cmdutil.match(repo, pats, opts)
    modified, added, removed = repo.status(node1, node2, matcher)[:3]
    if not (modified or added or removed):
        return 0

    "extdiff":
    (extdiff,
     [('p', 'program', '', _('comparison program to run')),
      ('o', 'option', [], _('pass option to comparison program')),
      ('r', 'rev', [], _('revision')),
      ('c', 'change', '', _('change made by revision')),
     ] + commands.walkopts,
     _('hg extdiff [OPT]... [FILE]...')),
    }

def uisetup(ui):