From 0d524ad672333fd0bafa64e81e261fd297c25580 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@gnu.kitenet.net>
Date: Fri, 26 Mar 2010 01:38:53 -0400
Subject: Fix incorrect influence info returned by a failing link() pagespec,
 that could lead to bad dependency handling in certian situations.

---
 IkiWiki.pm                         | 4 ++--
 debian/changelog                   | 2 ++
 doc/bugs/depends_simple_mixup.mdwn | 5 +++++
 t/pagespec_match.t                 | 8 +++++++-
 4 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 022bfe3bd..927d62940 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -2215,7 +2215,7 @@ sub match_link ($$;@) {
 	my $from=exists $params{location} ? $params{location} : '';
 
 	my $links = $IkiWiki::links{$page};
-	return IkiWiki::FailReason->new("$page has no links", "" => 1)
+	return IkiWiki::FailReason->new("$page has no links", $page => $IkiWiki::DEPEND_LINKS, "" => 1)
 		unless $links && @{$links};
 	my $bestlink = IkiWiki::bestlink($from, $link);
 	foreach my $p (@{$links}) {
@@ -2232,7 +2232,7 @@ sub match_link ($$;@) {
 				if match_glob($p_rel, $link, %params);
 		}
 	}
-	return IkiWiki::FailReason->new("$page does not link to $link", "" => 1);
+	return IkiWiki::FailReason->new("$page does not link to $link", $page => $IkiWiki::DEPEND_LINKS, "" => 1);
 }
 
 sub match_backlink ($$;@) {
diff --git a/debian/changelog b/debian/changelog
index da1ab890e..b9a105552 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -17,6 +17,8 @@ ikiwiki (3.20100324) UNRELEASED; urgency=low
   * Add --set-yaml switch for setting more complex config file options.
   * filecheck: Fix bugs that prevented the pagespecs from matching when
     not called by attachment plugin.
+  * Fix incorrect influence info returned by a failing link() pagespec,
+    that could lead to bad dependency handling in certian situations.
 
  -- Joey Hess <joeyh@debian.org>  Sat, 13 Mar 2010 14:48:10 -0500
 
diff --git a/doc/bugs/depends_simple_mixup.mdwn b/doc/bugs/depends_simple_mixup.mdwn
index c2845240d..2603ff04c 100644
--- a/doc/bugs/depends_simple_mixup.mdwn
+++ b/doc/bugs/depends_simple_mixup.mdwn
@@ -15,4 +15,9 @@ dependency. But, it seems to me it should still be listed in
 
 Then re-add the done link, and the dependency calc code breaks down,
 not noticing that bugs dependeded on the page and needs to be updated.
+
+Ok.. Turns out this was not a problem with the actual influences
+calculation or dependency calculation code. Whew! `match_link`
+just didn't set the influence correctly when failing. [[fixed|done]]
+
 --[[Joey]]
diff --git a/t/pagespec_match.t b/t/pagespec_match.t
index 8b0be4e8a..ade9bca5a 100755
--- a/t/pagespec_match.t
+++ b/t/pagespec_match.t
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 use warnings;
 use strict;
-use Test::More tests => 72;
+use Test::More tests => 75;
 
 BEGIN { use_ok("IkiWiki"); }
 
@@ -54,6 +54,7 @@ $config{userdir}="";
 $links{foo}=[qw{bar baz}];
 $links{bar}=[];
 $links{baz}=[];
+$links{meh}=[];
 $links{"bugs/foo"}=[qw{bugs/done}];
 $links{"bugs/done"}=[];
 $links{"bugs/bar"}=[qw{done}];
@@ -82,6 +83,7 @@ ok(! pagespec_match("bar", ""), "empty pagespec should match nothing");
 ok(! pagespec_match("bar", "    	"), "blank pagespec should match nothing");
 ok(pagespec_match("ook", "link(blog/tags/foo)"), "link internal absolute success");
 ok(pagespec_match("ook", "link(/blog/tags/foo)"), "link explicit absolute success");
+ok(pagespec_match("meh", "!link(done)"), "negated failing match is a success");
 
 $IkiWiki::pagectime{foo}=1154532692; # Wed Aug  2 11:26 EDT 2006
 $IkiWiki::pagectime{bar}=1154532695; # after
@@ -122,3 +124,7 @@ $i=pagespec_match("foo", "link(baz) and created_after(bar)")->influences;
 is(join(",", sort keys %$i), 'bar,foo', "influences add up over OR");
 $i=pagespec_match("foo", "!link(baz) and !created_after(bar)")->influences;
 is(join(",", sort keys %$i), 'bar,foo', "influences unaffected by negation");
+$i=pagespec_match("foo", "!link(baz) and !created_after(bar)")->influences;
+is(join(",", sort keys %$i), 'bar,foo', "influences unaffected by negation");
+$i=pagespec_match("meh", "!link(done)")->influences;
+is(join(",", sort keys %$i), 'meh', "a negated, failing link test is successful, so the page is a link influence");
-- 
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