vfs: add "notindexed" argument to invoke "ensuredir" with it in write mode

This patch uses "False" as default value of "notindexed" argument,
even though "vfs.makedir()" uses "True" for it, because "os.mkdir()"
doesn't set "_FILE_ATTRIBUTE_NOT_CONTENT_INDEXED" attribute to newly
created directories.

mercurial/scmutil.py

@@ -197,9 +197,16 b' class abstractvfs(object):'
                 raise
         return []
 
-    def open(self, path, mode="r", text=False, atomictemp=False):
+    def open(self, path, mode="r", text=False, atomictemp=False,
+             notindexed=False):
+        '''Open ``path`` file, which is relative to vfs root.
+
+        Newly created directories are marked as "not to be indexed by
+        the content indexing service", if ``notindexed`` is specified
+        for "write" mode access.
+        '''
         self.open = self.__call__
-        return self.__call__(path, mode, text, atomictemp)
+        return self.__call__(path, mode, text, atomictemp, notindexed)
 
     def read(self, path):
         fp = self(path, 'rb')
@@ -345,7 +352,14 b' class vfs(abstractvfs):'
             return
         os.chmod(name, self.createmode & 0666)
 
-    def __call__(self, path, mode="r", text=False, atomictemp=False):
+    def __call__(self, path, mode="r", text=False, atomictemp=False,
+                 notindexed=False):
+        '''Open ``path`` file, which is relative to vfs root.
+
+        Newly created directories are marked as "not to be indexed by
+        the content indexing service", if ``notindexed`` is specified
+        for "write" mode access.
+        '''
         if self._audit:
             r = util.checkosfilename(path)
             if r:
@@ -363,7 +377,7 b' class vfs(abstractvfs):'
             # to a directory. Let the posixfile() call below raise IOError.
             if basename:
                 if atomictemp:
-                    util.ensuredirs(dirname, self.createmode)
+                    util.ensuredirs(dirname, self.createmode, notindexed)
                     return util.atomictempfile(f, mode, self.createmode)
                 try:
                     if 'w' in mode:
@@ -381,7 +395,7 b' class vfs(abstractvfs):'
                     if e.errno != errno.ENOENT:
                         raise
                     nlink = 0
-                    util.ensuredirs(dirname, self.createmode)
+                    util.ensuredirs(dirname, self.createmode, notindexed)
                 if nlink > 0:
                     if self._trustnlink is None:
                         self._trustnlink = nlink > 1 or util.checknlink(f)

mercurial/util.py

@@ -1088,15 +1088,20 b' def makedirs(name, mode=None, notindexed'
     if mode is not None:
         os.chmod(name, mode)
 
-def ensuredirs(name, mode=None):
-    """race-safe recursive directory creation"""
+def ensuredirs(name, mode=None, notindexed=False):
+    """race-safe recursive directory creation
+
+    Newly created directories are marked as "not to be indexed by
+    the content indexing service", if ``notindexed`` is specified
+    for "write" mode access.
+    """
     if os.path.isdir(name):
         return
     parent = os.path.dirname(os.path.abspath(name))
     if parent != name:
-        ensuredirs(parent, mode)
+        ensuredirs(parent, mode, notindexed)
     try:
-        os.mkdir(name)
+        makedir(name, notindexed)
     except OSError, err:
         if err.errno == errno.EEXIST and os.path.isdir(name):
             # someone else seems to have won a directory creation race