fix handling of influences of pagespecs that fail to match

[git.ikiwiki.info.git] / IkiWiki / Plugin / postsparkline.pm

diff --git a/IkiWiki/Plugin/postsparkline.pm b/IkiWiki/Plugin/postsparkline.pm
index ac7ad9d73b7c6fb6a5c7f26e05ce2b598ef6177d..3205958d40dcb5f8b0a510b58d14fba95423c1ff 100644 (file)
--- a/IkiWiki/Plugin/postsparkline.pm
+++ b/IkiWiki/Plugin/postsparkline.pm
@@ -3,14 +3,23 @@ package IkiWiki::Plugin::postsparkline;
 
 use warnings;
 use strict;
-use IkiWiki 2.00;
+use IkiWiki 3.00;
 
-sub import { #{{{
+sub import {
        IkiWiki::loadplugin('sparkline');
+       hook(type => "getsetup", id => "postsparkline", call => \&getsetup);
        hook(type => "preprocess", id => "postsparkline", call => \&preprocess);
-} # }}}
+}
+
+sub getsetup () {
+       return 
+               plugin => {
+                       safe => 1,
+                       rebuild => undef,
+               },
+}
 
-sub preprocess (@) { #{{{
+sub preprocess (@) {
        my %params=@_;
 
        if (! exists $params{max}) {
@@ -29,31 +38,31 @@ sub preprocess (@) { #{{{
        }
 
        if (! exists $params{formula}) {
-               return "[[postsparkline ".gettext("missing formula")."]]";
+               error gettext("missing formula")
        }
        my $formula=$params{formula};
        $formula=~s/[^a-zA-Z0-9]*//g;
        $formula=IkiWiki::possibly_foolish_untaint($formula);
        if (! length $formula ||
            ! IkiWiki::Plugin::postsparkline::formula->can($formula)) {
-               return "[[postsparkline ".gettext("unknown formula")."]]";
+               error gettext("unknown formula");
        }
 
-       add_depends($params{page}, $params{pages});
+       add_depends($params{page}, $params{pages}, presence => 1);
 
-       my @list;
-       foreach my $page (keys %pagesources) {
-               next if $page eq $params{page};
-               if (pagespec_match($page, $params{pages}, location => $params{page})) {
-                       push @list, $page;
-               }
-       }
-       
-       @list = sort { $params{timehash}->{$b} <=> $params{timehash}->{$a} } @list;
+       my @list=sort { $params{timehash}->{$b} <=> $params{timehash}->{$a} } 
+               pagespec_match_list(
+                       [ grep { $_ ne $params{page} } keys %pagesources],
+                       $params{pages}, location => $params{page});
 
        my @data=eval qq{IkiWiki::Plugin::postsparkline::formula::$formula(\\\%params, \@list)};
        if ($@) {
-               return "[[postsparkline error $@]]";
+               error $@;
+       }
+
+       if (! @data) {
+               # generate an empty graph
+               push @data, 0 foreach 1..($params{max} / 2);
        }
 
        my $color=exists $params{color} ? "($params{color})" : "";
@@ -64,7 +73,7 @@ sub preprocess (@) { #{{{
        delete $params{color};
        return IkiWiki::Plugin::sparkline::preprocess(%params, 
                map { $_.$color => "" } reverse @data);
-} # }}}
+}
 
 sub perfoo ($@) {
        my $sub=shift;