# HG changeset patch
# User Matt Harbison <matt_harbison@yahoo.com>
# Date 1491961091 14400
# Node ID 87f293edabb6fde8bf1c598a456398d18bd3827b
# Parent  ca7af5d15b21345ff1f73f10b8b91a3ccff92011
windows: add context manager support to mixedfilemodewrapper

I stumbled into this in the next patch.  The difference between getting a
context manager capable object or not from vfs classes was as subtle as adding a
'+' to the file mode.

diff -r ca7af5d15b21 -r 87f293edabb6 mercurial/windows.py
--- a/mercurial/windows.py	Tue Apr 11 18:31:40 2017 -0700
+++ b/mercurial/windows.py	Tue Apr 11 21:38:11 2017 -0400
@@ -64,6 +64,12 @@
         object.__setattr__(self, r'_fp', fp)
         object.__setattr__(self, r'_lastop', 0)
 
+    def __enter__(self):
+        return self._fp.__enter__()
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self._fp.__exit__(exc_type, exc_val, exc_tb)
+
     def __getattr__(self, name):
         return getattr(self._fp, name)