[PATCH 34 of 35 V2] largefiles: remove unnecessary check of instance

[Sean Farley]

# HG changeset patch
# User Sean Farley <sean.michael.farley at gmail.com>
# Date 1375819809 18000
#      Tue Aug 06 15:10:09 2013 -0500
# Node ID 28a28810fa48edc0521df4a68b296560e9017a1b
# Parent  7cf9e2404d41a1f3b7e3713d4591c743f8ea3c78
largefiles: remove unnecessary check of instance

The refactoring of all the context objects allows us to simply pass a context
to the __new__ constructor and have it return the same object without
allocating new memory.

This also removes the need to import the context module.

diff --git a/hgext/largefiles/reposetup.py b/hgext/largefiles/reposetup.py
--- a/hgext/largefiles/reposetup.py
+++ b/hgext/largefiles/reposetup.py
@@ -8,12 +8,11 @@
 
 '''setup for largefiles repositories: reposetup'''
 import copy
 import os
 
-from mercurial import context, error, manifest, match as match_, util, \
-    discovery
+from mercurial import error, manifest, match as match_, util, discovery
 from mercurial import node as node_
 from mercurial.i18n import _
 from mercurial import localrepo
 
 import lfcommands
@@ -90,18 +89,12 @@
                 return super(lfilesrepo, self).status(node1, node2, match,
                     listignored, listclean, listunknown, listsubrepos)
             else:
                 # some calls in this function rely on the old version of status
                 self.lfstatus = False
-                if isinstance(node1, context.changectx):
-                    ctx1 = node1
-                else:
-                    ctx1 = self[node1]
-                if isinstance(node2, context.changectx):
-                    ctx2 = node2
-                else:
-                    ctx2 = self[node2]
+                ctx1 = self[node1]
+                ctx2 = self[node2]
                 working = ctx2.rev() is None
                 parentworking = working and ctx1 == self['.']
 
                 def inctx(file, ctx):
                     try: