IkiWiki/Plugin/recentchanges.pm

   1 #!/usr/bin/perl
   2 package IkiWiki::Plugin::recentchanges;
   3
   4 use warnings;
   5 use strict;
   6 use IkiWiki 2.00;
   7 use Encode;
   8
   9 sub import { #{{{
  10         hook(type => "getsetup", id => "recentchanges", call => \&getsetup);
  11         hook(type => "checkconfig", id => "recentchanges", call => \&checkconfig);
  12         hook(type => "refresh", id => "recentchanges", call => \&refresh);
  13         hook(type => "pagetemplate", id => "recentchanges", call => \&pagetemplate);
  14         hook(type => "htmlize", id => "_change", call => \&htmlize);
  15         hook(type => "cgi", id => "recentchanges", call => \&cgi);
  16 } #}}}
  17
  18 sub getsetup () { #{{{
  19         return
  20                 plugin => {
  21                         safe => 1,
  22                         rebuild => 1,
  23                 },
  24                 recentchangespage => {
  25                         type => "string",
  26                         example => "recentchanges",
  27                         description => "name of the recentchanges page",
  28                         safe => 1,
  29                         rebuild => 1,
  30                 },
  31                 recentchangesnum => {
  32                         type => "integer",
  33                         example => 100,
  34                         description => "number of changes to track",
  35                         safe => 1,
  36                         rebuild => 0,
  37                 },
  38 } #}}}
  39
  40 sub checkconfig () { #{{{
  41         $config{recentchangespage}='recentchanges' unless defined $config{recentchangespage};
  42         $config{recentchangesnum}=100 unless defined $config{recentchangesnum};
  43 } #}}}
  44
  45 sub refresh ($) { #{{{
  46         my %seen;
  47
  48         # add new changes
  49         foreach my $change (IkiWiki::rcs_recentchanges($config{recentchangesnum})) {
  50                 $seen{store($change, $config{recentchangespage})}=1;
  51         }
  52
  53         # delete old and excess changes
  54         foreach my $page (keys %pagesources) {
  55                 if ($pagesources{$page} =~ /\._change$/ && ! $seen{$page}) {
  56                         unlink($config{srcdir}.'/'.$pagesources{$page});
  57                 }
  58         }
  59 } #}}}
  60
  61 # Enable the recentchanges link on wiki pages.
  62 sub pagetemplate (@) { #{{{
  63         my %params=@_;
  64         my $template=$params{template};
  65         my $page=$params{page};
  66
  67         if (defined $config{recentchangespage} && $config{rcs} &&
  68             $page ne $config{recentchangespage} &&
  69             $template->query(name => "recentchangesurl")) {
  70                 $template->param(recentchangesurl => urlto($config{recentchangespage}, $page));
  71                 $template->param(have_actions => 1);
  72         }
  73 } #}}}
  74
  75 # Pages with extension _change have plain html markup, pass through.
  76 sub htmlize (@) { #{{{
  77         my %params=@_;
  78         return $params{content};
  79 } #}}}
  80
  81 sub cgi ($) { #{{{
  82         my $cgi=shift;
  83         if (defined $cgi->param('do') && $cgi->param('do') eq "recentchanges_link") {
  84                 # This is a link from a change page to some
  85                 # other page. Since the change pages are only generated
  86                 # once, statically, links on them won't be updated if the
  87                 # page they link to is deleted, or newly created, or
  88                 # changes for whatever reason. So this CGI handles that
  89                 # dynamic linking stuff.
  90                 my $page=decode_utf8($cgi->param("page"));
  91                 if (!defined $page) {
  92                         error("missing page parameter");
  93                 }
  94
  95                 IkiWiki::loadindex();
  96
  97                 my $link=bestlink("", $page);
  98                 if (! length $link) {
  99                         print "Content-type: text/html\n\n";
 100                         print IkiWiki::misctemplate(gettext(gettext("missing page")),
 101                                 "<p>".
 102                                 sprintf(gettext("The page %s does not exist."),
 103                                         htmllink("", "", $page)).
 104                                 "</p>");
 105                 }
 106                 else {
 107                         IkiWiki::redirect($cgi, urlto($link, undef, 1));
 108                 }
 109
 110                 exit;
 111         }
 112 }
 113
 114 sub store ($$$) { #{{{
 115         my $change=shift;
 116
 117         my $page="$config{recentchangespage}/change_".titlepage($change->{rev});
 118         my $baseurl = IkiWiki::baseurl();
 119         my $permalink="$baseurl$config{recentchangespage}/#change-".titlepage($change->{rev});
 120
 121         # Optimisation to avoid re-writing pages. Assumes commits never
 122         # change (or that any changes are not important).
 123         return $page if exists $pagesources{$page} && ! $config{rebuild};
 124
 125         # Limit pages to first 10, and add links to the changed pages.
 126         my $is_excess = exists $change->{pages}[10];
 127         delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess;
 128         $change->{pages} = [
 129                 map {
 130                         if (length $config{cgiurl}) {
 131                                 $_->{link} = "<a href=\"".
 132                                         IkiWiki::cgiurl(
 133                                                 do => "recentchanges_link",
 134                                                 page => $_->{page}
 135                                         ).
 136                                         "\">".
 137                                         pagetitle($_->{page}).
 138                                         "</a>"
 139                         }
 140                         else {
 141                                 $_->{link} = pagetitle($_->{page});
 142                         }
 143                         $_->{baseurl}="$config{url}/" if length $config{url};
 144
 145                         $_;
 146                 } @{$change->{pages}}
 147         ];
 148         push @{$change->{pages}}, { link => '...' } if $is_excess;
 149
 150         # See if the committer is an openid.
 151         $change->{author}=$change->{user};
 152         my $oiduser=eval { IkiWiki::openiduser($change->{user}) };
 153         if (defined $oiduser) {
 154                 $change->{authorurl}=$change->{user};
 155                 $change->{user}=$oiduser;
 156         }
 157         elsif (length $config{cgiurl}) {
 158                 $change->{authorurl} = IkiWiki::cgiurl(
 159                         do => "recentchanges_link",
 160                         page => (length $config{userdir} ? "$config{userdir}/" : "").$change->{author},
 161                 );
 162         }
 163
 164         # escape wikilinks and preprocessor stuff in commit messages
 165         if (ref $change->{message}) {
 166                 foreach my $field (@{$change->{message}}) {
 167                         if (exists $field->{line}) {
 168                                 $field->{line} =~ s/(?<!\\)\[\[/\\\[\[/g;
 169                         }
 170                 }
 171         }
 172
 173         # Fill out a template with the change info.
 174         my $template=template("change.tmpl", blind_cache => 1);
 175         $template->param(
 176                 %$change,
 177                 commitdate => displaytime($change->{when}, "%X %x"),
 178                 commitdate_raw => scalar localtime($change->{when}),
 179                 wikiname => $config{wikiname},
 180                 permalink => $permalink,
 181         );
 182         IkiWiki::run_hooks(pagetemplate => sub {
 183                 shift->(page => $page, destpage => $page,
 184                         template => $template, rev => $change->{rev});
 185         });
 186
 187         my $file=$page."._change";
 188         writefile($file, $config{srcdir}, $template->output);
 189         utime $change->{when}, $change->{when}, "$config{srcdir}/$file";
 190
 191         return $page;
 192 } #}}}
 193
 194 1