* aggregate: Fork a child process to handle the aggregation. This simplifies

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

diff --git a/IkiWiki/Plugin/meta.pm b/IkiWiki/Plugin/meta.pm
index 987262a48c6961bed98b480e5466614b0588d5dc..d2c6e7f8bfa404739498940050bda916b54d3209 100644 (file)
--- a/IkiWiki/Plugin/meta.pm
+++ b/IkiWiki/Plugin/meta.pm
@@ -16,7 +16,7 @@ my %copyright;
 
 sub import { #{{{
        hook(type => "needsbuild", id => "meta", call => \&needsbuild);
-       hook(type => "preprocess", id => "meta", call => \&preprocess);
+       hook(type => "preprocess", id => "meta", call => \&preprocess, scan => 1);
        hook(type => "pagetemplate", id => "meta", call => \&pagetemplate);
 } # }}}
 
@@ -43,6 +43,15 @@ sub scrub ($) { #{{{
        }
 } #}}}
 
+sub htmlize ($$$) { #{{{
+       my $page = shift;
+       my $destpage = shift;
+
+       return IkiWiki::htmlize($page, pagetype($pagesources{$page}),
+               IkiWiki::linkify($page, $destpage,
+               IkiWiki::preprocess($page, $destpage, shift)));
+}
+
 sub preprocess (@) { #{{{
        return "" unless @_;
        my %params=@_;
@@ -60,20 +69,51 @@ sub preprocess (@) { #{{{
        # fully encoded.
        $value=decode_entities($value);
 
+       # Metadata collection that needs to happen during the scan pass.
        if ($key eq 'title') {
                $title{$page}=HTML::Entities::encode_numeric($value);
        }
-       elsif ($key eq 'permalink') {
-               $permalink{$page}=$value;
-               push @{$meta{$page}}, scrub('<link rel="bookmark" href="'.encode_entities($value).'" />');
+       elsif ($key eq 'license') {
+               push @{$meta{$page}}, '<link rel="license" href="#page_license" />';
+               $license{$page}=$value;
+               return "";
+       }
+       elsif ($key eq 'copyright') {
+               push @{$meta{$page}}, '<link rel="copyright" href="#page_copyright" />';
+               $copyright{$page}=$value;
+               return "";
+       }
+       elsif ($key eq 'link' && ! %params) {
+               # hidden WikiLink
+               push @{$links{$page}}, $value;
+               return "";
+       }
+       elsif ($key eq 'author') {
+               $author{$page}=$value;
+               # fallthorough
+       }
+       elsif ($key eq 'authorurl') {
+               $authorurl{$page}=$value;
+               # fallthrough
+       }
+
+       if (! defined wantarray) {
+               # avoid collecting duplicate data during scan pass
+               return;
        }
-       elsif ($key eq 'date') {
+
+       # Metadata collection that happens only during preprocessing pass.
+       if ($key eq 'date') {
                eval q{use Date::Parse};
                if (! $@) {
                        my $time = str2time($value);
                        $IkiWiki::pagectime{$page}=$time if defined $time;
                }
        }
+       elsif ($key eq 'permalink') {
+               $permalink{$page}=$value;
+               push @{$meta{$page}}, scrub('<link rel="bookmark" href="'.encode_entities($value).'" />');
+       }
        elsif ($key eq 'stylesheet') {
                my $rel=exists $params{rel} ? $params{rel} : "alternate stylesheet";
                my $title=exists $params{title} ? $params{title} : $value;
@@ -96,14 +136,6 @@ sub preprocess (@) { #{{{
                push @{$meta{$page}}, '<link href="'.encode_entities($value).
                        '" rel="openid.delegate" />';
        }
-       elsif ($key eq 'license') {
-               push @{$meta{$page}}, '<link rel="license" href="#page_license" />';
-               $license{$page}=$value;
-       }
-       elsif ($key eq 'copyright') {
-               push @{$meta{$page}}, '<link rel="copyright" href="#page_copyright" />';
-               $copyright{$page}=$value;
-       }
        elsif ($key eq 'redir') {
                return "" if $page ne $destpage;
                my $safe=0;
@@ -143,17 +175,17 @@ sub preprocess (@) { #{{{
                push @{$meta{$page}}, $redir;
        }
        elsif ($key eq 'link') {
-               return "[[meta ".gettext("link is no longer supported")."]]";
+               if (%params) {
+                       push @{$meta{$page}}, scrub("<link href=\"".encode_entities($value)."\" ".
+                               join(" ", map {
+                                       encode_entities($_)."=\"".encode_entities(decode_entities($params{$_}))."\""
+                               } keys %params).
+                               " />\n");
+               }
        }
        else {
                push @{$meta{$page}}, scrub('<meta name="'.encode_entities($key).
                        '" content="'.encode_entities($value).'" />');
-               if ($key eq 'author') {
-                       $author{$page}=$value;
-               }
-               elsif ($key eq 'authorurl') {
-                       $authorurl{$page}=$value;
-               }
        }
 
        return "";
@@ -180,25 +212,16 @@ sub pagetemplate (@) { #{{{
                if exists $author{$page} && $template->query(name => "author");
        $template->param(authorurl => $authorurl{$page})
                if exists $authorurl{$page} && $template->query(name => "authorurl");
-               
-       if ($page ne $destpage &&
-           ((exists $license{$page}   && ! exists $license{$destpage}) ||
-            (exists $copyright{$page} && ! exists $copyright{$destpage}))) {
-               # Force a scan of the destpage to get its copyright/license
-               # info. If the info is declared after an inline, it will
-               # otherwise not be available at this point.
-               IkiWiki::scan($pagesources{$destpage});
-       }
 
        if (exists $license{$page} && $template->query(name => "license") &&
            ($page eq $destpage || ! exists $license{$destpage} ||
             $license{$page} ne $license{$destpage})) {
-               $template->param(license => IkiWiki::linkify($page, $destpage, $license{$page}));
+               $template->param(license => htmlize($page, $destpage, $license{$page}));
        }
        if (exists $copyright{$page} && $template->query(name => "copyright") &&
            ($page eq $destpage || ! exists $copyright{$destpage} ||
             $copyright{$page} ne $copyright{$destpage})) {
-               $template->param(copyright => IkiWiki::linkify($page, $destpage, $copyright{$page}));
+               $template->param(copyright => htmlize($page, $destpage, $copyright{$page}));
        }
 } # }}}