IkiWiki/Plugin/calendar.pm

   1 #! /usr/bin/perl
   2 # Copyright (c) 2006, 2007 Manoj Srivastava <srivasta@debian.org>
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 require 5.002;
  19 package IkiWiki::Plugin::calendar;
  20
  21 use warnings;
  22 use strict;
  23 use IkiWiki 3.00;
  24 use Time::Local;
  25
  26 my $time=time;
  27 my @now=localtime($time);
  28
  29 sub import {
  30         hook(type => "checkconfig", id => "calendar", call => \&checkconfig);
  31         hook(type => "getsetup", id => "calendar", call => \&getsetup);
  32         hook(type => "needsbuild", id => "calendar", call => \&needsbuild);
  33         hook(type => "preprocess", id => "calendar", call => \&preprocess);
  34         hook(type => "scan", id => "calendar", call => \&scan);
  35 }
  36
  37 sub getsetup () {
  38         return
  39                 plugin => {
  40                         safe => 1,
  41                         rebuild => undef,
  42                         section => "widget",
  43                 },
  44                 archivebase => {
  45                         type => "string",
  46                         example => "archives",
  47                         description => "base of the archives hierarchy",
  48                         safe => 1,
  49                         rebuild => 1,
  50                 },
  51                 archive_pagespec => {
  52                         type => "pagespec",
  53                         example => "page(posts/*) and !*/Discussion",
  54                         description => "PageSpec of pages to include in the archives, if option `calendar_autocreate` is true.",
  55                         link => 'ikiwiki/PageSpec',
  56                         safe => 1,
  57                         rebuild => 0,
  58                 },
  59                 calendar_autocreate => {
  60                         type => "boolean",
  61                         example => 1,
  62                         description => "autocreate new calendar pages?",
  63                         safe => 1,
  64                         rebuild => undef,
  65                 },
  66                 calendar_autocreate_commit => {
  67                         type => "boolean",
  68                         example => 1,
  69                         default => 1,
  70                         description => "commit autocreated calendar pages",
  71                         safe => 1,
  72                         rebuild => 0,
  73                 },
  74 }
  75
  76 sub checkconfig () {
  77         if (! defined $config{calendar_autocreate}) {
  78                 $config{calendar_autocreate} = defined $config{archivebase} || defined $config{calendar_autocreate_commit};
  79         }
  80         if (! defined $config{calendar_autocreate_commit}) {
  81                 $config{calendar_autocreate_commit} = 1;
  82         }
  83         if (! defined $config{archive_pagespec}) {
  84                 $config{archive_pagespec} = '*';
  85         }
  86         if (! defined $config{archivebase}) {
  87                 $config{archivebase} = 'archives';
  88         }
  89 }
  90
  91 sub is_leap_year (@) {
  92         my %params=@_;
  93         return ($params{year} % 4 == 0 && (($params{year} % 100 != 0) || $params{year} % 400 == 0));
  94 }
  95
  96 sub month_days {
  97         my %params=@_;
  98         my $days_in_month = (31,28,31,30,31,30,31,31,30,31,30,31)[$params{month}-1];
  99         if ($params{month} == 2 && is_leap_year(%params)) {
 100                 $days_in_month++;
 101         }
 102         return $days_in_month;
 103 }
 104
 105 sub autocreate {
 106         my ($page, $pagefile, $year, $month) = @_;
 107         my $message=sprintf(gettext("creating calendar page %s"), $page);
 108         debug($message);
 109
 110         my $template;
 111         if (defined $month) {
 112                 $template=template("calendarmonth.tmpl");
 113         } else {
 114                 $template=template("calendaryear.tmpl");
 115         }
 116         $template->param(year => $year);
 117         $template->param(month => $month) if defined $month;
 118         $template->param(pagespec => $config{archive_pagespec});
 119
 120         my $dir = $config{srcdir};
 121         if (! $config{calendar_autocreate_commit}) {
 122                 $dir = $IkiWiki::Plugin::transient::transientdir;
 123         }
 124
 125         writefile($pagefile, $dir, $template->output);
 126         if ($config{rcs} && $config{calendar_autocreate_commit}) {
 127                 IkiWiki::disable_commit_hook();
 128                 IkiWiki::rcs_add($pagefile);
 129                 IkiWiki::rcs_commit_staged(message => $message);
 130                 IkiWiki::enable_commit_hook();
 131         }
 132 }
 133
 134 sub calendarlink($;$) {
 135         my ($year, $month) = @_;
 136         if (defined $month) {
 137                 return $config{archivebase} . "/" . $year . "/" . $month;
 138         } else {
 139                 return $config{archivebase} . "/" . $year;
 140         }
 141 }
 142
 143 sub gencalendaryear {
 144         my $year = shift;
 145
 146         if ($config{calendar_autocreate}) {
 147
 148                 # Building year page
 149                 my $page = calendarlink($year);
 150                 my $pagefile = newpagefile($page, $config{default_pageext});
 151                 add_autofile(
 152                         $pagefile, "calendar",
 153                         sub {return autocreate($page, $pagefile, $year);}
 154                 );
 155
 156                 # Building month pages
 157                 foreach my $month (qw{01 02 03 04 05 06 07 08 09 10 11 12}) {
 158                         my $page = calendarlink($year, $month);
 159                         my $pagefile = newpagefile($page, $config{default_pageext});
 160                         add_autofile(
 161                                 $pagefile, "calendar",
 162                                 sub {return autocreate($page, $pagefile, $year, $month);}
 163                         );
 164                 }
 165
 166                 # Filling potential gaps in years (e.g. calendar goes from 2010 to 2014,
 167                 # and we just added year 2005. We have to had years 2006 to 2009.
 168                 if (not exists $wikistate{calendar}{minyear}) {
 169                         $wikistate{calendar}{minyear} = $year;
 170                 } elsif ($wikistate{calendar}{minyear} > $year) {
 171                         gencalendaryear($year + 1);
 172                         $wikistate{calendar}{minyear} -= 1;
 173                 }
 174                 if (not exists $wikistate{calendar}{maxyear}) {
 175                         $wikistate{calendar}{maxyear} = $year;
 176                 }
 177                 if ($wikistate{calendar}{maxyear} < $year) {
 178                         gencalendaryear($year - 1);
 179                         $wikistate{calendar}{maxyear} += 1;
 180                 }
 181         }
 182 }
 183
 184 sub format_month (@) {
 185         my %params=@_;
 186
 187         my %linkcache;
 188         foreach my $p (pagespec_match_list($params{page},
 189                                 "creation_year($params{year}) and creation_month($params{month}) and ($params{pages})",
 190                                 # add presence dependencies to update
 191                                 # month calendar when pages are added/removed
 192                                 deptype => deptype("presence"))) {
 193                 my $mtime = $IkiWiki::pagectime{$p};
 194                 my @date  = localtime($mtime);
 195                 my $mday  = $date[3];
 196                 my $month = $date[4] + 1;
 197                 my $year  = $date[5] + 1900;
 198                 my $mtag  = sprintf("%02d", $month);
 199
 200                 if (! $linkcache{"$year/$mtag/$mday"}) {
 201                         $linkcache{"$year/$mtag/$mday"} = [];
 202                 }
 203                 push(@{$linkcache{"$year/$mtag/$mday"}}, $p);
 204         }
 205
 206         my $pmonth = $params{month} - 1;
 207         my $nmonth = $params{month} + 1;
 208         my $pyear  = $params{year};
 209         my $nyear  = $params{year};
 210
 211         # Adjust for January and December
 212         if ($params{month} == 1) {
 213                 $pmonth = 12;
 214                 $pyear--;
 215         }
 216         if ($params{month} == 12) {
 217                 $nmonth = 1;
 218                 $nyear++;
 219         }
 220
 221         # Add padding.
 222         $pmonth=sprintf("%02d", $pmonth);
 223         $nmonth=sprintf("%02d", $nmonth);
 224
 225         my $calendar="\n";
 226
 227         # When did this month start?
 228         my @monthstart = localtime(timelocal(0,0,0,1,$params{month}-1,$params{year}-1900));
 229
 230         my $future_dom = 0;
 231         my $today      = 0;
 232         if ($params{year} == $now[5]+1900 && $params{month} == $now[4]+1) {
 233                 $future_dom = $now[3]+1;
 234                 $today      = $now[3];
 235         }
 236
 237         # Find out month names for this, next, and previous months
 238         my $monthabbrev=strftime_utf8("%b", @monthstart);
 239         my $monthname=strftime_utf8("%B", @monthstart);
 240         my $pmonthname=strftime_utf8("%B", localtime(timelocal(0,0,0,1,$pmonth-1,$pyear-1900)));
 241         my $nmonthname=strftime_utf8("%B", localtime(timelocal(0,0,0,1,$nmonth-1,$nyear-1900)));
 242
 243         my $archivebase = 'archives';
 244         $archivebase = $config{archivebase} if defined $config{archivebase};
 245         $archivebase = $params{archivebase} if defined $params{archivebase};
 246
 247         # Calculate URL's for monthly archives.
 248         my ($url, $purl, $nurl)=("$monthname $params{year}",'','');
 249         if (exists $pagesources{"$archivebase/$params{year}/$params{month}"}) {
 250                 $url = htmllink($params{page}, $params{destpage},
 251                         "$archivebase/$params{year}/".$params{month},
 252                         noimageinline => 1,
 253                         linktext => "$monthabbrev $params{year}",
 254                         title => $monthname);
 255         }
 256         add_depends($params{page}, "$archivebase/$params{year}/$params{month}",
 257                 deptype("presence"));
 258         if (exists $pagesources{"$archivebase/$pyear/$pmonth"}) {
 259                 $purl = htmllink($params{page}, $params{destpage},
 260                         "$archivebase/$pyear/$pmonth",
 261                         noimageinline => 1,
 262                         linktext => "\&larr;",
 263                         title => $pmonthname);
 264         }
 265         add_depends($params{page}, "$archivebase/$pyear/$pmonth",
 266                 deptype("presence"));
 267         if (exists $pagesources{"$archivebase/$nyear/$nmonth"}) {
 268                 $nurl = htmllink($params{page}, $params{destpage},
 269                         "$archivebase/$nyear/$nmonth",
 270                         noimageinline => 1,
 271                         linktext => "\&rarr;",
 272                         title => $nmonthname);
 273         }
 274         add_depends($params{page}, "$archivebase/$nyear/$nmonth",
 275                 deptype("presence"));
 276
 277         # Start producing the month calendar
 278         $calendar=<<EOF;
 279 <table class="month-calendar">
 280         <tr>
 281         <th class="month-calendar-arrow">$purl</th>
 282         <th class="month-calendar-head" colspan="5">$url</th>
 283         <th class="month-calendar-arrow">$nurl</th>
 284         </tr>
 285         <tr>
 286 EOF
 287
 288         # Suppose we want to start the week with day $week_start_day
 289         # If $monthstart[6] == 1
 290         my $week_start_day = $params{week_start_day};
 291
 292         my $start_day = 1 + (7 - $monthstart[6] + $week_start_day) % 7;
 293         my %downame;
 294         my %dowabbr;
 295         for my $dow ($week_start_day..$week_start_day+6) {
 296                 my @day=localtime(timelocal(0,0,0,$start_day++,$params{month}-1,$params{year}-1900));
 297                 my $downame = strftime_utf8("%A", @day);
 298                 my $dowabbr = substr($downame, 0, 1);
 299                 $downame{$dow % 7}=$downame;
 300                 $dowabbr{$dow % 7}=$dowabbr;
 301                 $calendar.= qq{\t\t<th class="month-calendar-day-head $downame" title="$downame">$dowabbr</th>\n};
 302         }
 303
 304         $calendar.=<<EOF;
 305         </tr>
 306 EOF
 307
 308         my $wday;
 309         # we start with a week_start_day, and skip until we get to the first
 310         for ($wday=$week_start_day; $wday != $monthstart[6]; $wday++, $wday %= 7) {
 311                 $calendar.=qq{\t<tr>\n} if $wday == $week_start_day;
 312                 $calendar.=qq{\t\t<td class="month-calendar-day-noday $downame{$wday}">&nbsp;</td>\n};
 313         }
 314
 315         # At this point, either the first is a week_start_day, in which case
 316         # nothing has been printed, or else we are in the middle of a row.
 317         for (my $day = 1; $day <= month_days(year => $params{year}, month => $params{month});
 318              $day++, $wday++, $wday %= 7) {
 319                 # At this point, on a week_start_day, we close out a row,
 320                 # and start a new one -- unless it is week_start_day on the
 321                 # first, where we do not close a row -- since none was started.
 322                 if ($wday == $week_start_day) {
 323                         $calendar.=qq{\t</tr>\n} unless $day == 1;
 324                         $calendar.=qq{\t<tr>\n};
 325                 }
 326
 327                 my $tag;
 328                 my $key="$params{year}/$params{month}/$day";
 329                 if (defined $linkcache{$key}) {
 330                         if ($day == $today) {
 331                                 $tag='month-calendar-day-this-day';
 332                         }
 333                         else {
 334                                 $tag='month-calendar-day-link';
 335                         }
 336                         $calendar.=qq{\t\t<td class="$tag $downame{$wday}">};
 337                         $calendar.=qq{<div class='popup'>$day<div class='balloon'>};
 338                         # Several postings on this page
 339                         $calendar.=qq{<ul>};
 340                         foreach my $page (@{$linkcache{$key}}) {
 341                                 $calendar.= qq{\n\t\t\t<li>};
 342                                 my $title;
 343                                 if (exists $pagestate{$page}{meta}{title}) {
 344                                         $title = "$pagestate{$page}{meta}{title}";
 345                                 }
 346                                 else {
 347                                         $title = pagetitle(IkiWiki::basename($page));
 348                                 }
 349                                 $calendar.=htmllink($params{page}, $params{destpage},
 350                                         $page,
 351                                         noimageinline => 1,
 352                                         linktext => $title,
 353                                         title => $title);
 354                                 $calendar.= '</li>';
 355                         }
 356                         $calendar.=qq{\n\t\t</ul>};
 357                         $calendar.=qq{</div></div>};
 358                         $calendar.=qq{</td>\n};
 359                 }
 360                 else {
 361                         if ($day == $today) {
 362                                 $tag='month-calendar-day-this-day';
 363                         }
 364                         elsif ($day == $future_dom) {
 365                                 $tag='month-calendar-day-future';
 366                         }
 367                         else {
 368                                 $tag='month-calendar-day-nolink';
 369                         }
 370                         $calendar.=qq{\t\t<td class="$tag $downame{$wday}">$day</td>\n};
 371                 }
 372         }
 373
 374         # finish off the week
 375         for (; $wday != $week_start_day; $wday++, $wday %= 7) {
 376                 $calendar.=qq{\t\t<td class="month-calendar-day-noday $downame{$wday}">&nbsp;</td>\n};
 377         }
 378         $calendar.=<<EOF;
 379         </tr>
 380 </table>
 381 EOF
 382
 383         return $calendar;
 384 }
 385
 386 sub format_year (@) {
 387         my %params=@_;
 388
 389         my @post_months;
 390         foreach my $p (pagespec_match_list($params{page},
 391                                 "creation_year($params{year}) and ($params{pages})",
 392                                 # add presence dependencies to update
 393                                 # year calendar's links to months when
 394                                 # pages are added/removed
 395                                 deptype => deptype("presence"))) {
 396                 my $mtime = $IkiWiki::pagectime{$p};
 397                 my @date  = localtime($mtime);
 398                 my $month = $date[4] + 1;
 399
 400                 $post_months[$month]++;
 401         }
 402
 403         my $calendar="\n";
 404
 405         my $pyear = $params{year}  - 1;
 406         my $nyear = $params{year}  + 1;
 407
 408         my $thisyear = $now[5]+1900;
 409         my $future_month = 0;
 410         $future_month = $now[4]+1 if $params{year} == $thisyear;
 411
 412         my $archivebase = 'archives';
 413         $archivebase = $config{archivebase} if defined $config{archivebase};
 414         $archivebase = $params{archivebase} if defined $params{archivebase};
 415
 416         # calculate URL's for previous and next years
 417         my ($url, $purl, $nurl)=("$params{year}",'','');
 418         if (exists $pagesources{"$archivebase/$params{year}"}) {
 419                 $url = htmllink($params{page}, $params{destpage},
 420                         "$archivebase/$params{year}",
 421                         noimageinline => 1,
 422                         linktext => $params{year},
 423                         title => $params{year});
 424         }
 425         add_depends($params{page}, "$archivebase/$params{year}", deptype("presence"));
 426         if (exists $pagesources{"$archivebase/$pyear"}) {
 427                 $purl = htmllink($params{page}, $params{destpage},
 428                         "$archivebase/$pyear",
 429                         noimageinline => 1,
 430                         linktext => "\&larr;",
 431                         title => $pyear);
 432         }
 433         add_depends($params{page}, "$archivebase/$pyear", deptype("presence"));
 434         if (exists $pagesources{"$archivebase/$nyear"}) {
 435                 $nurl = htmllink($params{page}, $params{destpage},
 436                         "$archivebase/$nyear",
 437                         noimageinline => 1,
 438                         linktext => "\&rarr;",
 439                         title => $nyear);
 440         }
 441         add_depends($params{page}, "$archivebase/$nyear", deptype("presence"));
 442
 443         # Start producing the year calendar
 444         my $m=$params{months_per_row}-2;
 445         $calendar=<<EOF;
 446 <table class="year-calendar">
 447         <tr>
 448         <th class="year-calendar-arrow">$purl</th>
 449         <th class="year-calendar-head" colspan="$m">$url</th>
 450         <th class="year-calendar-arrow">$nurl</th>
 451         </tr>
 452         <tr>
 453                 <th class="year-calendar-subhead" colspan="$params{months_per_row}">Months</th>
 454         </tr>
 455 EOF
 456
 457         for (my $month = 1; $month <= 12; $month++) {
 458                 my @day=localtime(timelocal(0,0,0,15,$month-1,$params{year}-1900));
 459                 my $murl;
 460                 my $monthname = strftime_utf8("%B", @day);
 461                 my $monthabbr = strftime_utf8("%b", @day);
 462                 $calendar.=qq{\t<tr>\n}  if ($month % $params{months_per_row} == 1);
 463                 my $tag;
 464                 my $mtag=sprintf("%02d", $month);
 465                 if ($month == $params{month} && $thisyear == $params{year}) {
 466                         $tag = 'year-calendar-this-month';
 467                 }
 468                 elsif ($pagesources{"$archivebase/$params{year}/$mtag"}) {
 469                         $tag = 'year-calendar-month-link';
 470                 }
 471                 elsif ($future_month && $month >= $future_month) {
 472                         $tag = 'year-calendar-month-future';
 473                 }
 474                 else {
 475                         $tag = 'year-calendar-month-nolink';
 476                 }
 477
 478                 if ($pagesources{"$archivebase/$params{year}/$mtag"} &&
 479                     $post_months[$mtag]) {
 480                         $murl = htmllink($params{page}, $params{destpage},
 481                                 "$archivebase/$params{year}/$mtag",
 482                                 noimageinline => 1,
 483                                 linktext => $monthabbr,
 484                                 title => $monthname);
 485                         $calendar.=qq{\t<td class="$tag">};
 486                         $calendar.=$murl;
 487                         $calendar.=qq{\t</td>\n};
 488                 }
 489                 else {
 490                         $calendar.=qq{\t<td class="$tag">$monthabbr</td>\n};
 491                 }
 492                 add_depends($params{page}, "$archivebase/$params{year}/$mtag",
 493                         deptype("presence"));
 494
 495                 $calendar.=qq{\t</tr>\n} if ($month % $params{months_per_row} == 0);
 496         }
 497
 498         $calendar.=<<EOF;
 499 </table>
 500 EOF
 501
 502         return $calendar;
 503 }
 504
 505 sub setnextchange ($$) {
 506         my $page=shift;
 507         my $timestamp=shift;
 508
 509         if (! exists $pagestate{$page}{calendar}{nextchange} ||
 510             $pagestate{$page}{calendar}{nextchange} > $timestamp) {
 511                 $pagestate{$page}{calendar}{nextchange}=$timestamp;
 512         }
 513 }
 514
 515 sub preprocess (@) {
 516         my %params=@_;
 517
 518         my $thisyear=1900 + $now[5];
 519         my $thismonth=1 + $now[4];
 520
 521         $params{pages} = "*"            unless defined $params{pages};
 522         $params{type}  = "month"        unless defined $params{type};
 523         $params{week_start_day} = 0     unless defined $params{week_start_day};
 524         $params{months_per_row} = 3     unless defined $params{months_per_row};
 525         $params{year}  = $thisyear      unless defined $params{year};
 526         $params{month} = $thismonth     unless defined $params{month};
 527
 528         my $relativeyear=0;
 529         if ($params{year} < 1) {
 530                 $relativeyear=1;
 531                 $params{year}=$thisyear+$params{year};
 532         }
 533         my $relativemonth=0;
 534         if ($params{month} < 1) {
 535                 $relativemonth=1;
 536                 my $monthoff=$params{month};
 537                 $params{month}=($thismonth+$monthoff) % 12;
 538                 $params{month}=12 if $params{month}==0;
 539                 my $yearoff=POSIX::ceil(($thismonth-$params{month}) / -12)
 540                         - int($monthoff / 12);
 541                 $params{year}-=$yearoff;
 542         }
 543
 544         $params{month} = sprintf("%02d", $params{month});
 545
 546         if ($params{type} eq 'month' && $params{year} == $thisyear
 547             && $params{month} == $thismonth) {
 548                 # calendar for current month, updates next midnight
 549                 setnextchange($params{destpage}, ($time
 550                         + (60 - $now[0])                # seconds
 551                         + (59 - $now[1]) * 60           # minutes
 552                         + (23 - $now[2]) * 60 * 60      # hours
 553                 ));
 554         }
 555         elsif ($params{type} eq 'month' &&
 556                (($params{year} == $thisyear && $params{month} > $thismonth) ||
 557                 $params{year} > $thisyear)) {
 558                 # calendar for upcoming month, updates 1st of that month
 559                 setnextchange($params{destpage},
 560                         timelocal(0, 0, 0, 1, $params{month}-1, $params{year}));
 561         }
 562         elsif (($params{type} eq 'year' && $params{year} == $thisyear) ||
 563                $relativemonth) {
 564                 # Calendar for current year updates 1st of next month.
 565                 # Any calendar relative to the current month also updates
 566                 # then.
 567                 if ($thismonth < 12) {
 568                         setnextchange($params{destpage},
 569                                 timelocal(0, 0, 0, 1, $thismonth+1-1, $params{year}));
 570                 }
 571                 else {
 572                         setnextchange($params{destpage},
 573                                 timelocal(0, 0, 0, 1, 1-1, $params{year}+1));
 574                 }
 575         }
 576         elsif ($relativeyear) {
 577                 # Any calendar relative to the current year updates 1st
 578                 # of next year.
 579                 setnextchange($params{destpage},
 580                         timelocal(0, 0, 0, 1, 1-1, $thisyear+1));
 581         }
 582         elsif ($params{type} eq 'year' && $params{year} > $thisyear) {
 583                 # calendar for upcoming year, updates 1st of that year
 584                 setnextchange($params{destpage},
 585                         timelocal(0, 0, 0, 1, 1-1, $params{year}));
 586         }
 587         else {
 588                 # calendar for past month or year, does not need
 589                 # to update any more
 590                 delete $pagestate{$params{destpage}}{calendar};
 591         }
 592
 593         my $calendar="";
 594         if ($params{type} eq 'month') {
 595                 $calendar=format_month(%params);
 596         }
 597         elsif ($params{type} eq 'year') {
 598                 $calendar=format_year(%params);
 599         }
 600
 601         return "\n<div><div class=\"calendar\">$calendar</div></div>\n";
 602 } #}}
 603
 604 sub needsbuild (@) {
 605         my $needsbuild=shift;
 606         foreach my $page (keys %pagestate) {
 607                 if (exists $pagestate{$page}{calendar}{nextchange}) {
 608                         if ($pagestate{$page}{calendar}{nextchange} <= $time) {
 609                                 # force a rebuild so the calendar shows
 610                                 # the current day
 611                                 push @$needsbuild, $pagesources{$page};
 612                         }
 613                         if (exists $pagesources{$page} &&
 614                             grep { $_ eq $pagesources{$page} } @$needsbuild) {
 615                                 # remove state, will be re-added if
 616                                 # the calendar is still there during the
 617                                 # rebuild
 618                                 delete $pagestate{$page}{calendar};
 619                         }
 620                 }
 621         }
 622
 623         return $needsbuild;
 624 }
 625
 626 sub scan (@) {
 627         my %params=@_;
 628         my $page=$params{page};
 629
 630         # Check if year pages have to be generated
 631         if (pagespec_match($page, $config{archive_pagespec})) {
 632                 my @ctime = localtime($IkiWiki::pagectime{$page});
 633                 gencalendaryear($ctime[5]+1900);
 634         }
 635 }
 636
 637 1