# HG changeset patch
# User Brendan Cully <brendan@kublai.com>
# Date 1159572369 25200
# Node ID 0790dce2f3a85442cc7c5b29afc10a871f5b95f7
# Parent  79fd7a92f3e2cca90d506c91064225df746d8331
Add lookup method to filectx

diff --git a/mercurial/context.py b/mercurial/context.py
--- a/mercurial/context.py
+++ b/mercurial/context.py
@@ -130,6 +130,12 @@ class filectx(object):
     def __repr__(self):
         return "<filectx %s@%s>" % (self.path(), short(self.node()))
 
+    def filectx(self, fileid):
+        '''opens an arbitrary revision of the file without
+        opening a new filelog'''
+        return filectx(self._repo, self._path, fileid=fileid,
+                       filelog=self._filelog)
+
     def filerev(self): return self._filerev
     def filenode(self): return self._filenode
     def filelog(self): return self._filelog