1 # Mercurial extension to provide the 'hg children' command

     2 #

     3 # Copyright 2007 by Intevation GmbH <intevation@intevation.de>

     4 # Author(s):

     5 # Thomas Arendsen Hein <thomas@intevation.de>

     6 #

     7 # This software may be used and distributed according to the terms

     8 # of the GNU General Public License, incorporated herein by reference.

     9 

    10 from mercurial import cmdutil, util

    11 from mercurial.i18n import _

    12 from mercurial.node import nullid

    13 

    14 

    15 def children(ui, repo, file_=None, **opts):

    16     """show the children of the given or working dir revision

    17 

    18     Print the children of the working directory's revisions.

    19     If a revision is given via --rev, the children of that revision

    20     will be printed. If a file argument is given, revision in

    21     which the file was last changed (after the working directory

    22     revision or the argument to --rev if given) is printed.

    23     """

    24     rev = opts.get('rev')

    25     if file_:

    26         ctx = repo.filectx(file_, changeid=rev)

    27     else:

    28         ctx = repo.changectx(rev)

    29     if ctx.node() == nullid:

    30         raise util.Abort(_("All non-merge changesets are children of "

    31                            "the null revision!"))

    32 

    33     displayer = cmdutil.show_changeset(ui, repo, opts)

    34     for node in [cp.node() for cp in ctx.children()]:

    35         displayer.show(changenode=node)

    36 

    37 

    38 cmdtable = {

    39     "children":

    40         (children,

    41          [('r', 'rev', '', _('show children of the specified rev')),

    42           ('', 'style', '', _('display using template map file')),

    43           ('', 'template', '', _('display with template'))],

    44          _('hg children [-r REV] [FILE]')),

    45 }