# HG changeset patch
# User Bryan O'Sullivan <bos@serpentine.com>
# Date 2005-07-20 11:37:01
# Node ID 3433b228bbb32c57cbf25e9f1bec3d66ea00cf20
# Parent  d4e161d60f610f33fbe39d89f566add125002857

An empty .hgignore file must cause us to ignore nothing, not everything!


diff --git a/mercurial/hg.py b/mercurial/hg.py
--- a/mercurial/hg.py
+++ b/mercurial/hg.py
@@ -299,9 +299,12 @@ class dirstate:
                             bigpat.append(util.pconvert(pat[:-1]))
             except IOError: pass
 
-            s = "(?:%s)" % (")|(?:".join(bigpat))
-            r = re.compile(s)
-            self.ignorefunc = r.search
+            if bigpat:
+                s = "(?:%s)" % (")|(?:".join(bigpat))
+                r = re.compile(s)
+                self.ignorefunc = r.search
+            else:
+                self.ignorefunc = util.never
 
         return self.ignorefunc(f)