[PATCH 01 of 10] subrepo: use filesystem APIs via temporary vfs in "hgsubrepo" constrcutor

[FUJIWARA Katsunori]

# HG changeset patch
# User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
# Date 1401288802 -32400
#      Wed May 28 23:53:22 2014 +0900
# Node ID 25cb27f9fa274069475fc8d1a129a272d9d7e147
# Parent  652e07debf10193f4973a48ead96a95e81d0a55b
subrepo: use filesystem APIs via temporary vfs in "hgsubrepo" constrcutor

diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
--- a/mercurial/subrepo.py
+++ b/mercurial/subrepo.py
@@ -11,7 +11,7 @@ import stat, subprocess, tarfile
 from i18n import _
 import config, util, node, error, cmdutil, bookmarks, match as matchmod
 import phases
-import pathutil
+import pathutil, scmutil
 hg = None
 propertycache = util.propertycache
 
@@ -511,12 +511,12 @@ class hgsubrepo(abstractsubrepo):
         self._path = path
         self._state = state
         r = ctx._repo
-        root = r.wjoin(path)
+        vfs = scmutil.vfs(r.wjoin(path))
         create = False
-        if not os.path.exists(os.path.join(root, '.hg')):
+        if not vfs.exists('.hg'):
             create = True
-            util.makedirs(root)
-        self._repo = hg.repository(r.baseui, root, create=create)
+            vfs.makedirs()
+        self._repo = hg.repository(r.baseui, vfs.base, create=create)
         for s, k in [('ui', 'commitsubrepos')]:
             v = r.ui.config(s, k)
             if v: