localrepo: deprecate 'repo.opener' (API)

The "new" 'repo.vfs' attribute have been around for almost 5 years. I think we
can deprecate the old form now ;-)

mercurial/localrepo.py

@@ -267,7 +267,6 b' class localrepository(object):'
         self.nofsauditor = pathutil.pathauditor(self.root, self._checknested,
                                                 realfs=False)
         self.vfs = scmutil.vfs(self.path)
-        self.opener = self.vfs
         self.baseui = baseui
         self.ui = baseui.copy()
         self.ui.copy = baseui.copy # prevent copying repo configuration
@@ -384,6 +383,11 b' class localrepository(object):'
         self.ui.deprecwarn("use 'repo.wvfs' instead of 'repo.wopener'", '4.2')
         return self.wvfs
 
+    @property
+    def opener(self):
+        self.ui.deprecwarn("use 'repo.vfs' instead of 'repo.opener'", '4.2')
+        return self.vfs
+
     def close(self):
         self._writecaches()
 

mercurial/statichttprepo.py

@@ -123,7 +123,6 b' class statichttprepository(localrepo.loc'
 
         vfsclass = build_opener(ui, authinfo)
         self.vfs = vfsclass(self.path)
-        self.opener = self.vfs
         self._phasedefaults = []
 
         self.names = namespaces.namespaces()