# HG changeset patch
# User Durham Goode <durham@fb.com>
# Date 1479425479 28800
# Node ID 4e1eab73c53d61f721b52e563a3dd4ae427a8143
# Parent  41a8106789cae9716c39d8381fa5da1d3ea0d74b
manifest: move manifestctx creation into manifestlog.get()

Most manifestctx creation already happened in manifestlog.get(), but there was
one spot in the manifestctx class itself that created an instance manually. This
patch makes that one instance go through the manifestlog. This means extensions
can just wrap manifestlog.get() and it will cover all manifestctx creations. It
also means this code path now hits the manifestlog cache.

diff -r 41a8106789ca -r 4e1eab73c53d mercurial/manifest.py
--- a/mercurial/manifest.py	Fri Nov 11 01:10:07 2016 -0800
+++ b/mercurial/manifest.py	Thu Nov 17 15:31:19 2016 -0800
@@ -1418,7 +1418,7 @@
         if revlog._usemanifestv2:
             # Need to perform a slow delta
             r0 = revlog.deltaparent(revlog.rev(self._node))
-            m0 = manifestctx(self._repo, revlog.node(r0)).read()
+            m0 = self._repo.manifestlog[revlog.node(r0)].read()
             m1 = self.read()
             md = manifestdict()
             for f, ((n0, fl0), (n1, fl1)) in m0.diff(m1).iteritems():