[PATCH 1 of 5] scmutil: rename classes from "opener" to "vfs"

[FUJIWARA Katsunori]

# HG changeset patch
# User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
# Date 1344687074 -32400
# Node ID dea54508bb39698cfd74b1281b0d12af09aff139
# Parent  b131e24e2984a610d77e124dd3f58b2b5eda6d1a
scmutil: rename classes from "opener" to "vfs"

This patch just rename class names, so still leaves original class
names as aliases for renamed classes for backward compatibility.

diff -r b131e24e2984 -r dea54508bb39 mercurial/scmutil.py
--- a/mercurial/scmutil.py	Mon Aug 06 12:07:21 2012 -0500
+++ b/mercurial/scmutil.py	Sat Aug 11 21:11:14 2012 +0900
@@ -167,7 +167,7 @@
         # want to add "foo/bar/baz" before checking if there's a "foo/.hg"
         self.auditeddir.update(prefixes)
 
-class abstractopener(object):
+class abstractvfs(object):
     """Abstract base class; cannot be instantiated"""
 
     def __init__(self, *args, **kwargs):
@@ -219,8 +219,10 @@
     def makedirs(self, path=None, mode=None):
         return util.makedirs(self.join(path), mode)
 
-class opener(abstractopener):
-    '''Open files relative to a base directory
+abstractopner = abstractvfs
+
+class vfs(abstractvfs):
+    '''Operate files relative to a base directory
 
     This class is used to hide the details of COW semantics and
     remote file access from higher level code.
@@ -327,8 +329,10 @@
         else:
             return self.base
 
-class filteropener(abstractopener):
-    '''Wrapper opener for filtering filenames with a function.'''
+opener = vfs
+
+class filtervfs(abstractvfs):
+    '''Wrapper vfs for filtering filenames with a function.'''
 
     def __init__(self, opener, filter):
         self._filter = filter
@@ -337,6 +341,8 @@
     def __call__(self, path, *args, **kwargs):
         return self._orig(self._filter(path), *args, **kwargs)
 
+filteropener = filtervfs
+
 def canonpath(root, cwd, myname, auditor=None):
     '''return the canonical path of myname, given cwd and root'''
     if util.endswithsep(root):
diff -r b131e24e2984 -r dea54508bb39 mercurial/statichttprepo.py
--- a/mercurial/statichttprepo.py	Mon Aug 06 12:07:21 2012 -0500
+++ b/mercurial/statichttprepo.py	Sat Aug 11 21:11:14 2012 +0900
@@ -64,7 +64,7 @@
     urlopener = url.opener(ui, authinfo)
     urlopener.add_handler(byterange.HTTPRangeHandler())
 
-    class statichttpopener(scmutil.abstractopener):
+    class statichttpvfs(scmutil.abstractvfs):
         def __init__(self, base):
             self.base = base
 
@@ -74,7 +74,7 @@
             f = "/".join((self.base, urllib.quote(path)))
             return httprangereader(f, urlopener)
 
-    return statichttpopener
+    return statichttpvfs
 
 class statichttppeer(localrepo.localpeer):
     def local(self):
diff -r b131e24e2984 -r dea54508bb39 mercurial/store.py
--- a/mercurial/store.py	Mon Aug 06 12:07:21 2012 -0500
+++ b/mercurial/store.py	Sat Aug 11 21:11:14 2012 +0900
@@ -367,7 +367,7 @@
             self._load()
         return iter(self.entries)
 
-class _fncacheopener(scmutil.abstractopener):
+class _fncachevfs(scmutil.abstractvfs):
     def __init__(self, op, fnc, encode):
         self.opener = op
         self.fncache = fnc
@@ -378,6 +378,8 @@
             self.fncache.add(path)
         return self.opener(self.encode(path), mode, *args, **kw)
 
+_fncacheopener = _fncachevfs
+
 class fncachestore(basicstore):
     def __init__(self, path, openertype, encode):
         self.encode = encode