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]