# HG changeset patch
# User Durham Goode <durham@fb.com>
# Date 1454969831 28800
# Node ID ba8257cb53e8d9998e34f97ec4f18966b0ec324a
# Parent  bd279da57e4b2ec4c0792eadf679489c2e56d61e
filectx: replace use of _filerev with _filenode

_filerev depends on the filelog implementation using revlogs and linkrevs.
Alternative implementations, like remotefilelog, do not have rev numbers, so
this call fails. Replacing it with _filenode means it doesn't rely on rev
numbers, and doesn't cost anything extra, since _filerev is using _filenode
under the hood anyway.

diff -r bd279da57e4b -r ba8257cb53e8 mercurial/context.py
--- a/mercurial/context.py	Wed Feb 03 15:53:48 2016 -0800
+++ b/mercurial/context.py	Mon Feb 08 14:17:11 2016 -0800
@@ -789,7 +789,7 @@
         if fctx._customcmp:
             return fctx.cmp(self)
 
-        if (fctx._filerev is None
+        if (fctx._filenode is None
             and (self._repo._encodefilterpats
                  # if file data starts with '\1\n', empty metadata block is
                  # prepended, which adds 4 bytes to filelog.size().