1 files changed, 103 insertions, 0 deletions
diff --git a/interfaces/email/interactive/libbe/hg.py b/interfaces/email/interactive/libbe/hg.py
new file mode 100644
index 0000000..f8f8121
--- /dev/null
+++ b/interfaces/email/interactive/libbe/hg.py
@@ -0,0 +1,103 @@
+# Copyright (C) 2007-2009 Aaron Bentley and Panometrics, Inc.
+#                         Ben Finney <ben+python@benfinney.id.au>
+#                         W. Trevor King <wking@drexel.edu>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+"""
+Mercurial (hg) backend.
+"""
+
+import os
+import re
+import sys
+import unittest
+import doctest
+
+import vcs
+
+
+def new():
+    return Hg()
+
+class Hg(vcs.VCS):
+    name="hg"
+    client="hg"
+    versioned=True
+    def _vcs_help(self):
+        status,output,error = self._u_invoke_client("--help")
+        return output
+    def _vcs_detect(self, path):
+        """Detect whether a directory is revision-controlled using Mercurial"""
+        if self._u_search_parent_directories(path, ".hg") != None:
+            return True
+        return False
+    def _vcs_root(self, path):
+        status,output,error = self._u_invoke_client("root", directory=path)
+        return output.rstrip('\n')
+    def _vcs_init(self, path):
+        self._u_invoke_client("init", directory=path)
+    def _vcs_get_user_id(self):
+        status,output,error = self._u_invoke_client("showconfig","ui.username")
+        return output.rstrip('\n')
+    def _vcs_set_user_id(self, value):
+        """
+        Supported by the Config Extension, but that is not part of
+        standard Mercurial.
+        http://www.selenic.com/mercurial/wiki/index.cgi/ConfigExtension
+        """
+        raise vcs.SettingIDnotSupported
+    def _vcs_add(self, path):
+        self._u_invoke_client("add", path)
+    def _vcs_remove(self, path):
+        self._u_invoke_client("rm", "--force", path)
+    def _vcs_update(self, path):
+        pass
+    def _vcs_get_file_contents(self, path, revision=None, binary=False):
+        if revision == None:
+            return vcs.VCS._vcs_get_file_contents(self, path, revision, binary=binary)
+        else:
+            status,output,error = \
+                self._u_invoke_client("cat","-r",revision,path)
+            return output
+    def _vcs_duplicate_repo(self, directory, revision=None):
+        if revision == None:
+            return vcs.VCS._vcs_duplicate_repo(self, directory, revision)
+        else:
+            self._u_invoke_client("archive", "--rev", revision, directory)
+    def _vcs_commit(self, commitfile, allow_empty=False):
+        args = ['commit', '--logfile', commitfile]
+        status,output,error = self._u_invoke_client(*args)
+        if allow_empty == False:
+            strings = ["nothing changed"]
+            if self._u_any_in_string(strings, output) == True:
+                raise vcs.EmptyCommit()
+        return self._vcs_revision_id(-1)
+    def _vcs_revision_id(self, index, style="id"):
+        args = ["identify", "--rev", str(int(index)), "--%s" % style]
+        kwargs = {"expect": (0,255)}
+        status,output,error = self._u_invoke_client(*args, **kwargs)
+        if status == 0:
+            id = output.strip()
+            if id == '000000000000':
+                return None # before initial commit.
+            return id
+        return None
+
+    
+vcs.make_vcs_testcase_subclasses(Hg, sys.modules[__name__])
+
+unitsuite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()])