IkiWiki/Plugin/tag.pm

   1 #!/usr/bin/perl
   2 # Ikiwiki tag plugin.
   3 package IkiWiki::Plugin::tag;
   4
   5 use warnings;
   6 use strict;
   7 use IkiWiki 3.00;
   8
   9 sub import {
  10         hook(type => "getopt", id => "tag", call => \&getopt);
  11         hook(type => "getsetup", id => "tag", call => \&getsetup);
  12         hook(type => "preprocess", id => "tag", call => \&preprocess_tag, scan => 1);
  13         hook(type => "preprocess", id => "taglink", call => \&preprocess_taglink, scan => 1);
  14         hook(type => "pagetemplate", id => "tag", call => \&pagetemplate);
  15 }
  16
  17 sub getopt () {
  18         eval q{use Getopt::Long};
  19         error($@) if $@;
  20         Getopt::Long::Configure('pass_through');
  21         GetOptions("tagbase=s" => \$config{tagbase});
  22 }
  23
  24 sub getsetup () {
  25         return
  26                 plugin => {
  27                         safe => 1,
  28                         rebuild => undef,
  29                 },
  30                 tagbase => {
  31                         type => "string",
  32                         example => "tag",
  33                         description => "parent page tags are located under",
  34                         safe => 1,
  35                         rebuild => 1,
  36                 },
  37                 tag_autocreate => {
  38                         type => "boolean",
  39                         example => 1,
  40                         description => "autocreate new tag pages?",
  41                         safe => 1,
  42                         rebuild => undef,
  43                 },
  44 }
  45
  46 sub taglink ($) {
  47         my $tag=shift;
  48
  49         if ($tag !~ m{^/} &&
  50             defined $config{tagbase}) {
  51                 $tag="/".$config{tagbase}."/".$tag;
  52                 $tag=~y#/#/#s; # squash dups
  53         }
  54
  55         return $tag;
  56 }
  57
  58 sub htmllink_tag ($$$;@) {
  59         my $page=shift;
  60         my $destpage=shift;
  61         my $tag=shift;
  62         my %opts=@_;
  63
  64         return htmllink($page, $destpage, taglink($tag), %opts);
  65 }
  66
  67 sub gentag ($) {
  68         my $tag=shift;
  69
  70         if ($config{tag_autocreate} ||
  71             ($config{tagbase} && ! defined $config{tag_autocreate})) {
  72                 my $tagpage=taglink($tag);
  73                 if ($tagpage=~/^\.\/(.*)/) {
  74                         $tagpage=$1;
  75                 }
  76                 else {
  77                         $tagpage=~s/^\///;
  78                 }
  79
  80                 my $tagfile = newpagefile($tagpage, $config{default_pageext});
  81
  82                 add_autofile($tagfile, "tag", sub {
  83                         my $message=sprintf(gettext("creating tag page %s"), $tagpage);
  84                         debug($message);
  85
  86                         my $template=template("autotag.tmpl");
  87                         $template->param(tagname => IkiWiki::basename($tag));
  88                         $template->param(tag => $tag);
  89                         writefile($tagfile, $config{srcdir}, $template->output);
  90                         if ($config{rcs}) {
  91                                 IkiWiki::disable_commit_hook();
  92                                 IkiWiki::rcs_add($tagfile);
  93                                 IkiWiki::rcs_commit_staged(message => $message);
  94                                 IkiWiki::enable_commit_hook();
  95                         }
  96                 });
  97         }
  98 }
  99
 100 sub preprocess_tag (@) {
 101         if (! @_) {
 102                 return "";
 103         }
 104         my %params=@_;
 105         my $page = $params{page};
 106         delete $params{page};
 107         delete $params{destpage};
 108         delete $params{preview};
 109
 110         foreach my $tag (keys %params) {
 111                 $tag=linkpage($tag);
 112
 113                 # hidden WikiLink
 114                 add_link($page, taglink($tag), 'tag');
 115
 116                 gentag($tag);
 117         }
 118
 119         return "";
 120 }
 121
 122 sub preprocess_taglink (@) {
 123         if (! @_) {
 124                 return "";
 125         }
 126         my %params=@_;
 127         return join(" ", map {
 128                 if (/(.*)\|(.*)/) {
 129                         my $tag=linkpage($2);
 130                         add_link($params{page}, taglink($tag), 'tag');
 131                         gentag($tag);
 132                         return htmllink_tag($params{page}, $params{destpage}, $tag,
 133                                 linktext => pagetitle($1));
 134                 }
 135                 else {
 136                         my $tag=linkpage($_);
 137                         add_link($params{page}, taglink($tag), 'tag');
 138                         gentag($tag);
 139                         return htmllink_tag($params{page}, $params{destpage}, $tag);
 140                 }
 141         }
 142         grep {
 143                 $_ ne 'page' && $_ ne 'destpage' && $_ ne 'preview'
 144         } keys %params);
 145 }
 146
 147 sub pagetemplate (@) {
 148         my %params=@_;
 149         my $page=$params{page};
 150         my $destpage=$params{destpage};
 151         my $template=$params{template};
 152
 153         my $tags = $typedlinks{$page}{tag};
 154
 155         $template->param(tags => [
 156                 map {
 157                         link => htmllink_tag($page, $destpage, $_, rel => "tag")
 158                 }, sort keys %$tags
 159         ]) if defined $tags && %$tags && $template->query(name => "tags");
 160
 161         if ($template->query(name => "categories")) {
 162                 # It's an rss/atom template. Add any categories.
 163                 if (defined $tags && %$tags) {
 164                         $template->param(categories => [map { category => $_ },
 165                                 sort keys %$tags]);
 166                 }
 167         }
 168 }
 169
 170 package IkiWiki::PageSpec;
 171
 172 sub match_tagged ($$;@) {
 173         my $page=shift;
 174         my $glob=IkiWiki::Plugin::tag::taglink(shift);
 175         return match_link($page, $glob, linktype => 'tag', @_);
 176 }
 177
 178 1