hgext3rd/topic/compat.py
author Pierre-Yves David <pierre-yves.david@octobus.net>
Tue, 24 Oct 2017 14:12:37 +0200
changeset 3142 28e501581dc7
parent 3094 e11e018e8338
child 3560 f61a23a84dac
permissions -rw-r--r--
compat: drop support for 3.8's '_destrebase' function We no longer support this version.
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# Copyright 2017 FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""
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Compatibility module
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"""
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from __future__ import absolute_import
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from mercurial import (
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    obsolete,
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    scmutil,
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    util,
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)
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getmarkers = None
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successorssets = None
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try:
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    from mercurial import obsutil
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    getmarkers = getattr(obsutil, 'getmarkers', None)
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    successorssets = getattr(obsutil, 'successorssets', None)
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except ImportError:
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    pass
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if getmarkers is None:
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    getmarkers = obsolete.getmarkers
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if successorssets is None:
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    successorssets = obsolete.successorssets
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def startpager(ui, cmd):
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    """function to start a pager in case ui.pager() exists"""
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    try:
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        ui.pager(cmd)
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    except AttributeError:
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        pass
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def cleanupnodes(repo, replacements, operation, moves=None):
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    # create obsmarkers and move bookmarks
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    # XXX we should be creating marker as we go instead of only at the end,
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    # this makes the operations more modulars
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    if util.safehasattr(scmutil, 'cleanupnodes'):
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        scmutil.cleanupnodes(repo, replacements, 'changetopics',
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                             moves=moves)
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    else:
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        relations = [(repo[o], tuple(repo[n] for n in new))
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                     for (o, new) in replacements.iteritems()]
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        obsolete.createmarkers(repo, relations)