1 files changed, 40 insertions, 0 deletions
diff --git a/mercurial/repo.py b/mercurial/repo.py
new file mode 100644
index 0000000..60de133
--- /dev/null
+++ b/mercurial/repo.py
@@ -0,0 +1,40 @@
+# repo.py - repository base classes for mercurial
+#
+# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
+# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2 or any later version.
+
+from i18n import _
+import error
+
+class repository(object):
+    def capable(self, name):
+        '''tell whether repo supports named capability.
+        return False if not supported.
+        if boolean capability, return True.
+        if string capability, return string.'''
+        if name in self.capabilities:
+            return True
+        name_eq = name + '='
+        for cap in self.capabilities:
+            if cap.startswith(name_eq):
+                return cap[len(name_eq):]
+        return False
+
+    def requirecap(self, name, purpose):
+        '''raise an exception if the given capability is not present'''
+        if not self.capable(name):
+            raise error.CapabilityError(
+                _('cannot %s; remote repository does not '
+                  'support the %r capability') % (purpose, name))
+
+    def local(self):
+        return False
+
+    def cancopy(self):
+        return self.local()
+
+    def close(self):
+        pass