Revert "Revert "pylint: upgrade to 1.3.1""

third_party/logilab/common/hg.py

-# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
-# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
-#
-# This file is part of logilab-common.
-#
-# logilab-common is free software: you can redistribute it and/or modify it under
-# the terms of the GNU Lesser General Public License as published by the Free
-# Software Foundation, either version 2.1 of the License, or (at your option) any
-# later version.
-#
-# logilab-common is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
-# details.
-#
-# You should have received a copy of the GNU Lesser General Public License along
-# with logilab-common.  If not, see <http://www.gnu.org/licenses/>.
-"""mercurial utilities (mercurial should be installed)"""
-
-__docformat__ = "restructuredtext en"
-
-import os
-import sys
-import os.path as osp
-
-try:
-    from mercurial.error import RepoError
-    from mercurial.__version__ import version as hg_version
-except ImportError:
-    from mercurial.repo import RepoError
-    from mercurial.version import get_version
-    hg_version = get_version()
-
-from mercurial.hg import repository as Repository
-from mercurial.ui import ui as Ui
-from mercurial.node import short
-try:
-    # mercurial >= 1.2 (?)
-    from mercurial.cmdutil import walkchangerevs
-except ImportError, ex:
-    from mercurial.commands import walkchangerevs
-try:
-    # mercurial >= 1.1 (.1?)
-    from mercurial.util import cachefunc
-except ImportError, ex:
-    def cachefunc(func):
-        return func
-try:
-    # mercurial >= 1.3.1
-    from mercurial import encoding
-    _encoding = encoding.encoding
-except ImportError:
-    try:
-        from mercurial.util import _encoding
-    except ImportError:
-        import locale
-        # stay compatible with mercurial 0.9.1 (etch debian release)
-        # (borrowed from mercurial.util 1.1.2)
-        try:
-            _encoding = os.environ.get("HGENCODING")
-            if sys.platform == 'darwin' and not _encoding:
-                # On darwin, getpreferredencoding ignores the locale environment and
-                # always returns mac-roman. We override this if the environment is
-                # not C (has been customized by the user).
-                locale.setlocale(locale.LC_CTYPE, '')
-                _encoding = locale.getlocale()[1]
-            if not _encoding:
-                _encoding = locale.getpreferredencoding() or 'ascii'
-        except locale.Error:
-            _encoding = 'ascii'
-try:
-    # demandimport causes problems when activated, ensure it isn't
-    # XXX put this in apycot where the pb has been noticed?
-    from mercurial import demandimport
-    demandimport.disable()
-except:
-    pass
-
-Ui.warn = lambda *args, **kwargs: 0 # make it quiet
-
-def find_repository(path):
-    """returns <path>'s mercurial repository
-
-    None if <path> is not under hg control
-    """
-    path = osp.realpath(osp.abspath(path))
-    while not osp.isdir(osp.join(path, ".hg")):
-        oldpath = path
-        path = osp.dirname(path)
-        if path == oldpath:
-            return None
-    return path
-
-
-def get_repository(path):
-    """Simple function that open a hg repository"""
-    repopath = find_repository(path)
-    if repopath is None:
-        raise RuntimeError('no repository found in %s' % osp.abspath(path))
-    return Repository(Ui(), path=repopath)
-
-def incoming(wdrepo, masterrepo):
-    try:
-        return wdrepo.findincoming(masterrepo)
-    except AttributeError:
-        from mercurial import hg, discovery
-        revs, checkout = hg.addbranchrevs(wdrepo, masterrepo, ('', []), None)
-        common, incoming, rheads = discovery.findcommonincoming(
-            wdrepo, masterrepo, heads=revs)
-        if not masterrepo.local():
-            from mercurial import bundlerepo, changegroup
-            if revs is None and masterrepo.capable('changegroupsubset'):
-                revs = rheads
-            if revs is None:
-                cg = masterrepo.changegroup(incoming, "incoming")
-            else:
-                cg = masterrepo.changegroupsubset(incoming, revs, 'incoming')
-            fname = changegroup.writebundle(cg, None, "HG10UN")
-            # use the created uncompressed bundlerepo
-            masterrepo = bundlerepo.bundlerepository(wdrepo.ui, wdrepo.root, fname)
-        return masterrepo.changelog.nodesbetween(incoming, revs)[0]
-
-def outgoing(wdrepo, masterrepo):
-    try:
-        return wdrepo.findoutgoing(masterrepo)
-    except AttributeError:
-        from mercurial import hg, discovery
-        revs, checkout = hg.addbranchrevs(wdrepo, wdrepo, ('', []), None)
-        o = discovery.findoutgoing(wdrepo, masterrepo)
-        return wdrepo.changelog.nodesbetween(o, revs)[0]