Correct a bug in pagespec matching, where a empty pagespec matched all pages.

This manifested as wikis with no locked pages treating them all as locked.
The bug was introduced in version 2.41.

Medium urgency upload due to above fix.

IkiWiki.pm

@@ -1247,6 +1247,10 @@ sub pagespec_translate ($) { #{{{
 		}
 	}
 
+	if (! length $code) {
+		$code=0;
+	}
+
 	return eval 'sub { my $page=shift; '.$code.' }';
 } #}}}
 

debian/changelog

@@ -1,9 +1,13 @@
-ikiwiki (2.44) UNRELEASED; urgency=low
+ikiwiki (2.44) unstable; urgency=medium
 
   * Bring back the svnrepo setup file option. This is needed for
     recentchangediff to work with svn repos.
   * Allow libtext-markdown-perl to satisfy dependencies, as a
     an alternative to the markdown package.
+  * Correct a bug in pagespec matching, where a empty pagespec matched all
+    pages. This manifested as wikis with no locked pages treating them all as
+    locked. The bug was introduced in version 2.41.
+  * Medium urgency upload due to above fix.
 
  -- Joey Hess <joeyh@debian.org>  Thu, 17 Apr 2008 14:33:54 -0400
 

t/pagespec_match.t

@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 use warnings;
 use strict;
-use Test::More tests => 52;
+use Test::More tests => 54;
 
 BEGIN { use_ok("IkiWiki"); }
 
@@ -51,6 +51,8 @@ ok(pagespec_match("examples/softwaresite/bugs/fails_to_frobnicate",
 ok(! pagespec_match("foo", "link(./bar)", location => "foo/bar"), "link relative fail");
 ok(pagespec_match("bar", "backlink(foo)"), "backlink");
 ok(! pagespec_match("quux", "backlink(foo)"), "failed backlink");
+ok(! pagespec_match("bar", ""), "empty pagespec should match nothing");
+ok(! pagespec_match("bar", "    	"), "blank pagespec should match nothing");
 
 $IkiWiki::pagectime{foo}=1154532692; # Wed Aug  2 11:26 EDT 2006
 $IkiWiki::pagectime{bar}=1154532695; # after