# HG changeset patch
# User Matt Mackall <mpm@selenic.com>
# Date 2010-05-28 19:41:11
# Node ID 054549ccb6803e48069b1615dd270ce0c692d9de
# Parent  e655b378ce735fd88ba68539e0c6ad4c403a190e

status: avoid performance regression when no .hgsub is present

(introduced by 24ce8f0c0a39)

diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -1010,7 +1010,9 @@ class localrepository(repo.repository):
             match.bad = bad
 
         if working: # we need to scan the working dir
-            subrepos = ctx1.substate.keys()
+            subrepos = []
+            if '.hgsub' in self.dirstate:
+                subrepos = ctx1.substate.keys()
             s = self.dirstate.status(match, subrepos, listignored,
                                      listclean, listunknown)
             cmp, modified, added, removed, deleted, unknown, ignored, clean = s