# HG changeset patch
# User FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
# Date 2015-10-07 16:41:30
# Node ID 3f41e28a16d870de5269d70ee94f92c5e37c1d5c
# Parent  46dec89fe88821df819ee54a15e7f919095b10fc

dirstate: split write to write changes into files other than .hg/dirstate

'_writedirstate()' is used mainly for "transactional dirstate". See
the wiki page below for detail about it.

    https://mercurial.selenic.com/wiki/DirstateTransactionPlan

diff --git a/mercurial/dirstate.py b/mercurial/dirstate.py
--- a/mercurial/dirstate.py
+++ b/mercurial/dirstate.py
@@ -622,6 +622,9 @@ class dirstate(object):
             time.sleep(delaywrite)
 
         st = self._opener(self._filename, "w", atomictemp=True)
+        self._writedirstate(st)
+
+    def _writedirstate(self, st):
         # use the modification time of the newly created temporary file as the
         # filesystem's notion of 'now'
         now = util.fstat(st).st_mtime