IkiWiki/Render.pm

   1 #!/usr/bin/perl
   2
   3 package IkiWiki;
   4
   5 use warnings;
   6 use strict;
   7 use IkiWiki;
   8 use Encode;
   9
  10 my (%backlinks, %rendered);
  11 our %brokenlinks;
  12 my $links_calculated=0;
  13
  14 sub calculate_links () {
  15         return if $links_calculated;
  16         %backlinks=%brokenlinks=();
  17         foreach my $page (keys %links) {
  18                 foreach my $link (@{$links{$page}}) {
  19                         my $bestlink=bestlink($page, $link);
  20                         if (length $bestlink) {
  21                                 $backlinks{$bestlink}{$page}=1
  22                                         if $bestlink ne $page;
  23                         }
  24                         else {
  25                                 push @{$brokenlinks{$link}}, $page;
  26                         }
  27                 }
  28         }
  29         $links_calculated=1;
  30 }
  31
  32 sub backlink_pages ($) {
  33         my $page=shift;
  34
  35         calculate_links();
  36
  37         return keys %{$backlinks{$page}};
  38 }
  39
  40 sub backlinks ($) {
  41         my $page=shift;
  42
  43         my @links;
  44         foreach my $p (backlink_pages($page)) {
  45                 my $href=urlto($p, $page);
  46
  47                 # Trim common dir prefixes from both pages.
  48                 my $p_trimmed=$p;
  49                 my $page_trimmed=$page;
  50                 my $dir;
  51                 1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
  52                         defined $dir &&
  53                         $p_trimmed=~s/^\Q$dir\E// &&
  54                         $page_trimmed=~s/^\Q$dir\E//;
  55
  56                 push @links, { url => $href, page => pagetitle($p_trimmed) };
  57         }
  58         return @links;
  59 }
  60
  61 sub genpage ($$) {
  62         my $page=shift;
  63         my $content=shift;
  64
  65         run_hooks(postscan => sub {
  66                 shift->(page => $page, content => $content);
  67         });
  68
  69         my $templatefile;
  70         run_hooks(templatefile => sub {
  71                 return if defined $templatefile;
  72                 my $file=shift->(page => $page);
  73                 if (defined $file && defined template_file($file)) {
  74                         $templatefile=$file;
  75                 }
  76         });
  77         my $template;
  78         if (defined $templatefile) {
  79                 $template=template_depends($templatefile, $page,
  80                         blind_cache => 1);
  81         }
  82         else {
  83                 # no explicit depends as special case
  84                 $template=template('page.tmpl',
  85                         blind_cache => 1);
  86         }
  87         my $actions=0;
  88
  89         if (length $config{cgiurl}) {
  90                 if (IkiWiki->can("cgi_editpage")) {
  91                         $template->param(editurl => cgiurl(do => "edit", page => $page));
  92                         $actions++;
  93                 }
  94                 if (exists $hooks{auth}) {
  95                         $template->param(prefsurl => cgiurl(do => "prefs"));
  96                         $actions++;
  97                 }
  98         }
  99
 100         if (defined $config{historyurl} && length $config{historyurl}) {
 101                 my $u=$config{historyurl};
 102                 $u=~s/\[\[file\]\]/$pagesources{$page}/g;
 103                 $template->param(historyurl => $u);
 104                 $actions++;
 105         }
 106         if ($config{discussion}) {
 107                 if ($page !~ /.*\/\Q$config{discussionpage}\E$/i &&
 108                    (length $config{cgiurl} ||
 109                     exists $links{$page."/".$config{discussionpage}})) {
 110                         $template->param(discussionlink => htmllink($page, $page, $config{discussionpage}, noimageinline => 1, forcesubpage => 1));
 111                         $actions++;
 112                 }
 113         }
 114
 115         if ($actions) {
 116                 $template->param(have_actions => 1);
 117         }
 118
 119         my @backlinks=sort { $a->{page} cmp $b->{page} } backlinks($page);
 120         my ($backlinks, $more_backlinks);
 121         if (@backlinks <= $config{numbacklinks} || ! $config{numbacklinks}) {
 122                 $backlinks=\@backlinks;
 123                 $more_backlinks=[];
 124         }
 125         else {
 126                 $backlinks=[@backlinks[0..$config{numbacklinks}-1]];
 127                 $more_backlinks=[@backlinks[$config{numbacklinks}..$#backlinks]];
 128         }
 129
 130         $template->param(
 131                 title => $page eq 'index'
 132                         ? $config{wikiname}
 133                         : pagetitle(basename($page)),
 134                 wikiname => $config{wikiname},
 135                 content => $content,
 136                 backlinks => $backlinks,
 137                 more_backlinks => $more_backlinks,
 138                 mtime => displaytime($pagemtime{$page}),
 139                 ctime => displaytime($pagectime{$page}, undef, 1),
 140                 baseurl => baseurl($page),
 141                 html5 => $config{html5},
 142         );
 143
 144         run_hooks(pagetemplate => sub {
 145                 shift->(page => $page, destpage => $page, template => $template);
 146         });
 147
 148         $content=$template->output;
 149
 150         run_hooks(format => sub {
 151                 $content=shift->(
 152                         page => $page,
 153                         content => $content,
 154                 );
 155         });
 156
 157         return $content;
 158 }
 159
 160 sub scan ($) {
 161         my $file=shift;
 162
 163         debug(sprintf(gettext("scanning %s"), $file));
 164
 165         my $type=pagetype($file);
 166         if (defined $type) {
 167                 my $srcfile=srcfile($file);
 168                 my $content=readfile($srcfile);
 169                 my $page=pagename($file);
 170                 will_render($page, htmlpage($page), 1);
 171
 172                 if ($config{discussion}) {
 173                         # Discussion links are a special case since they're
 174                         # not in the text of the page, but on its template.
 175                         $links{$page}=[ $page."/".lc($config{discussionpage}) ];
 176                 }
 177                 else {
 178                         $links{$page}=[];
 179                 }
 180                 delete $typedlinks{$page};
 181
 182                 run_hooks(scan => sub {
 183                         shift->(
 184                                 page => $page,
 185                                 content => $content,
 186                         );
 187                 });
 188
 189                 # Preprocess in scan-only mode.
 190                 preprocess($page, $page, $content, 1);
 191         }
 192         else {
 193                 will_render($file, $file, 1);
 194         }
 195 }
 196
 197 sub fast_file_copy (@) {
 198         my $srcfile=shift;
 199         my $destfile=shift;
 200         my $srcfd=shift;
 201         my $destfd=shift;
 202         my $cleanup=shift;
 203
 204         my $blksize = 16384;
 205         my ($len, $buf, $written);
 206         while ($len = sysread $srcfd, $buf, $blksize) {
 207                 if (! defined $len) {
 208                         next if $! =~ /^Interrupted/;
 209                         error("failed to read $srcfile: $!", $cleanup);
 210                 }
 211                 my $offset = 0;
 212                 while ($len) {
 213                         defined($written = syswrite $destfd, $buf, $len, $offset)
 214                                 or error("failed to write $destfile: $!", $cleanup);
 215                         $len -= $written;
 216                         $offset += $written;
 217                 }
 218         }
 219 }
 220
 221 sub render ($$) {
 222         my $file=shift;
 223         return if $rendered{$file};
 224         debug(shift);
 225         $rendered{$file}=1;
 226
 227         my $type=pagetype($file);
 228         my $srcfile=srcfile($file);
 229         if (defined $type) {
 230                 my $page=pagename($file);
 231                 delete $depends{$page};
 232                 delete $depends_simple{$page};
 233                 will_render($page, htmlpage($page), 1);
 234                 return if $type=~/^_/;
 235
 236                 my $content=htmlize($page, $page, $type,
 237                         linkify($page, $page,
 238                         preprocess($page, $page,
 239                         filter($page, $page,
 240                         readfile($srcfile)))));
 241
 242                 my $output=htmlpage($page);
 243                 writefile($output, $config{destdir}, genpage($page, $content));
 244         }
 245         else {
 246                 delete $depends{$file};
 247                 delete $depends_simple{$file};
 248                 will_render($file, $file, 1);
 249
 250                 if ($config{hardlink}) {
 251                         # only hardlink if owned by same user
 252                         my @stat=stat($srcfile);
 253                         if ($stat[4] == $>) {
 254                                 prep_writefile($file, $config{destdir});
 255                                 unlink($config{destdir}."/".$file);
 256                                 if (link($srcfile, $config{destdir}."/".$file)) {
 257                                         return;
 258                                 }
 259                         }
 260                         # if hardlink fails, fall back to copying
 261                 }
 262
 263                 my $srcfd=readfile($srcfile, 1, 1);
 264                 writefile($file, $config{destdir}, undef, 1, sub {
 265                         fast_file_copy($srcfile, $file, $srcfd, @_);
 266                 });
 267         }
 268 }
 269
 270 sub prune ($) {
 271         my $file=shift;
 272
 273         unlink($file);
 274         my $dir=dirname($file);
 275         while (rmdir($dir)) {
 276                 $dir=dirname($dir);
 277         }
 278 }
 279
 280 sub srcdir_check () {
 281         # security check, avoid following symlinks in the srcdir path by default
 282         my $test=$config{srcdir};
 283         while (length $test) {
 284                 if (-l $test && ! $config{allow_symlinks_before_srcdir}) {
 285                         error(sprintf(gettext("symlink found in srcdir path (%s) -- set allow_symlinks_before_srcdir to allow this"), $test));
 286                 }
 287                 unless ($test=~s/\/+$//) {
 288                         $test=dirname($test);
 289                 }
 290         }
 291
 292 }
 293
 294 sub find_src_files () {
 295         my @files;
 296         my %pages;
 297         eval q{use File::Find};
 298         error($@) if $@;
 299
 300         my ($page, $dir, $underlay);
 301         my $helper=sub {
 302                 my $file=decode_utf8($_);
 303
 304                 return if -l $file || -d _;
 305                 $file=~s/^\Q$dir\E\/?//;
 306                 return if ! length $file;
 307                 $page = pagename($file);
 308                 if (! exists $pagesources{$page} &&
 309                     file_pruned($file)) {
 310                         $File::Find::prune=1;
 311                         return;
 312                 }
 313
 314                 my ($f) = $file =~ /$config{wiki_file_regexp}/; # untaint
 315                 if (! defined $f) {
 316                         warn(sprintf(gettext("skipping bad filename %s"), $file)."\n");
 317                 }
 318
 319                 if ($underlay) {
 320                         # avoid underlaydir override attacks; see security.mdwn
 321                         if (! -l "$config{srcdir}/$f" && ! -e _) {
 322                                 if (! $pages{$page}) {
 323                                         push @files, $f;
 324                                         $pages{$page}=1;
 325                                 }
 326                         }
 327                 }
 328                 else {
 329                         push @files, $f;
 330                         if ($pages{$page}) {
 331                                 debug(sprintf(gettext("%s has multiple possible source pages"), $page));
 332                         }
 333                         $pages{$page}=1;
 334                 }
 335         };
 336
 337         find({
 338                 no_chdir => 1,
 339                 wanted => $helper,
 340         }, $dir=$config{srcdir});
 341         $underlay=1;
 342         foreach (@{$config{underlaydirs}}, $config{underlaydir}) {
 343                 find({
 344                         no_chdir => 1,
 345                         wanted => $helper,
 346                 }, $dir=$_);
 347         };
 348         return \@files, \%pages;
 349 }
 350
 351 sub find_new_files ($) {
 352         my $files=shift;
 353         my @new;
 354         my @internal_new;
 355
 356         my $times_noted;
 357
 358         foreach my $file (@$files) {
 359                 my $page=pagename($file);
 360                 if (exists $pagesources{$page} && $pagesources{$page} ne $file) {
 361                         # the page has changed its type
 362                         $forcerebuild{$page}=1;
 363                 }
 364                 $pagesources{$page}=$file;
 365                 if (! $pagemtime{$page}) {
 366                         if (isinternal($page)) {
 367                                 push @internal_new, $file;
 368                         }
 369                         elsif ($config{rcs}) {
 370                                 push @new, $file;
 371                                 if ($config{gettime} && -e "$config{srcdir}/$file") {
 372                                         if (! $times_noted) {
 373                                                 debug(sprintf(gettext("querying %s for file creation and modification times.."), $config{rcs}));
 374                                                 $times_noted=1;
 375                                         }
 376
 377                                         eval {
 378                                                 my $ctime=rcs_getctime("$config{srcdir}/$file");
 379                                                 if ($ctime > 0) {
 380                                                         $pagectime{$page}=$ctime;
 381                                                 }
 382                                         };
 383                                         if ($@) {
 384                                                 print STDERR $@;
 385                                         }
 386                                         my $mtime;
 387                                         eval {
 388                                                 $mtime=rcs_getmtime("$config{srcdir}/$file");
 389                                         };
 390                                         if ($@) {
 391                                                 print STDERR $@;
 392                                         }
 393                                         elsif ($mtime > 0) {
 394                                                 utime($mtime, $mtime, "$config{srcdir}/$file");
 395                                         }
 396                                 }
 397                         }
 398                         $pagecase{lc $page}=$page;
 399                         if (! exists $pagectime{$page}) {
 400                                 $pagectime{$page}=(srcfile_stat($file))[10];
 401                         }
 402                 }
 403         }
 404
 405         return \@new, \@internal_new;
 406 }
 407
 408 sub find_del_files ($) {
 409         my $pages=shift;
 410         my @del;
 411         my @internal_del;
 412
 413         foreach my $page (keys %pagesources) {
 414                 if (! $pages->{$page}) {
 415                         if (isinternal($page)) {
 416                                 push @internal_del, $pagesources{$page};
 417                         }
 418                         else {
 419                                 push @del, $pagesources{$page};
 420                         }
 421                         $links{$page}=[];
 422                         delete $typedlinks{$page};
 423                         $renderedfiles{$page}=[];
 424                         $pagemtime{$page}=0;
 425                 }
 426         }
 427
 428         return \@del, \@internal_del;
 429 }
 430
 431 sub remove_del (@) {
 432         foreach my $file (@_) {
 433                 my $page=pagename($file);
 434                 if (! isinternal($page)) {
 435                         debug(sprintf(gettext("removing obsolete %s"), $page));
 436                 }
 437
 438                 foreach my $old (@{$oldrenderedfiles{$page}}) {
 439                         prune($config{destdir}."/".$old);
 440                 }
 441
 442                 foreach my $source (keys %destsources) {
 443                         if ($destsources{$source} eq $page) {
 444                                 delete $destsources{$source};
 445                         }
 446                 }
 447
 448                 delete $pagecase{lc $page};
 449                 delete $pagesources{$page};
 450         }
 451 }
 452
 453 sub find_changed ($) {
 454         my $files=shift;
 455         my @changed;
 456         my @internal_changed;
 457         foreach my $file (@$files) {
 458                 my $page=pagename($file);
 459                 my ($srcfile, @stat)=srcfile_stat($file);
 460                 if (! exists $pagemtime{$page} ||
 461                     $stat[9] > $pagemtime{$page} ||
 462                     $forcerebuild{$page}) {
 463                         $pagemtime{$page}=$stat[9];
 464
 465                         if (isinternal($page)) {
 466                                 # Preprocess internal page in scan-only mode.
 467                                 preprocess($page, $page, readfile($srcfile), 1);
 468                                 push @internal_changed, $file;
 469                         }
 470                         else {
 471                                 push @changed, $file;
 472                         }
 473                 }
 474         }
 475         return \@changed, \@internal_changed;
 476 }
 477
 478 sub calculate_old_links ($$) {
 479         my ($changed, $del)=@_;
 480         my %oldlink_targets;
 481         foreach my $file (@$changed, @$del) {
 482                 my $page=pagename($file);
 483                 if (exists $oldlinks{$page}) {
 484                         foreach my $l (@{$oldlinks{$page}}) {
 485                                 $oldlink_targets{$page}{$l}=bestlink($page, $l);
 486                         }
 487                 }
 488         }
 489         return \%oldlink_targets;
 490 }
 491
 492 sub derender_internal ($) {
 493         my $file=shift;
 494         my $page=pagename($file);
 495         delete $depends{$page};
 496         delete $depends_simple{$page};
 497         foreach my $old (@{$renderedfiles{$page}}) {
 498                 delete $destsources{$old};
 499         }
 500         $renderedfiles{$page}=[];
 501 }
 502
 503 sub render_linkers ($) {
 504         my $f=shift;
 505         my $p=pagename($f);
 506         foreach my $page (keys %{$backlinks{$p}}) {
 507                 my $file=$pagesources{$page};
 508                 render($file, sprintf(gettext("building %s, which links to %s"), $file, $p));
 509         }
 510 }
 511
 512 sub remove_unrendered () {
 513         foreach my $src (keys %rendered) {
 514                 my $page=pagename($src);
 515                 foreach my $file (@{$oldrenderedfiles{$page}}) {
 516                         if (! grep { $_ eq $file } @{$renderedfiles{$page}}) {
 517                                 debug(sprintf(gettext("removing %s, no longer built by %s"), $file, $page));
 518                                 prune($config{destdir}."/".$file);
 519                         }
 520                 }
 521         }
 522 }
 523
 524 sub link_types_changed ($$) {
 525         # each is of the form { type => { link => 1 } }
 526         my $new = shift;
 527         my $old = shift;
 528
 529         return 0 if !defined $new && !defined $old;
 530         return 1 if (!defined $new && %$old) || (!defined $old && %$new);
 531
 532         while (my ($type, $links) = each %$new) {
 533                 foreach my $link (keys %$links) {
 534                         return 1 unless exists $old->{$type}{$link};
 535                 }
 536         }
 537
 538         while (my ($type, $links) = each %$old) {
 539                 foreach my $link (keys %$links) {
 540                         return 1 unless exists $new->{$type}{$link};
 541                 }
 542         }
 543
 544         return 0;
 545 }
 546
 547 sub calculate_changed_links ($$$) {
 548         my ($changed, $del, $oldlink_targets)=@_;
 549
 550         my (%backlinkchanged, %linkchangers);
 551
 552         foreach my $file (@$changed, @$del) {
 553                 my $page=pagename($file);
 554
 555                 if (exists $links{$page}) {
 556                         foreach my $l (@{$links{$page}}) {
 557                                 my $target=bestlink($page, $l);
 558                                 if (! exists $oldlink_targets->{$page}{$l} ||
 559                                     $target ne $oldlink_targets->{$page}{$l}) {
 560                                         $backlinkchanged{$target}=1;
 561                                         $linkchangers{lc($page)}=1;
 562                                 }
 563                                 delete $oldlink_targets->{$page}{$l};
 564                         }
 565                 }
 566                 if (exists $oldlink_targets->{$page} &&
 567                     %{$oldlink_targets->{$page}}) {
 568                         foreach my $target (values %{$oldlink_targets->{$page}}) {
 569                                 $backlinkchanged{$target}=1;
 570                         }
 571                         $linkchangers{lc($page)}=1;
 572                 }
 573
 574                 # we currently assume that changing the type of a link doesn't
 575                 # change backlinks
 576                 if (!exists $linkchangers{lc($page)}) {
 577                         if (link_types_changed($typedlinks{$page}, $oldtypedlinks{$page})) {
 578                                 $linkchangers{lc($page)}=1;
 579                         }
 580                 }
 581         }
 582
 583         return \%backlinkchanged, \%linkchangers;
 584 }
 585
 586 sub render_dependent ($$$$$$$) {
 587         my ($files, $new, $internal_new, $del, $internal_del,
 588                 $internal_changed, $linkchangers)=@_;
 589
 590         my @changed=(keys %rendered, @$del);
 591         my @exists_changed=(@$new, @$del);
 592
 593         my %lc_changed = map { lc(pagename($_)) => 1 } @changed;
 594         my %lc_exists_changed = map { lc(pagename($_)) => 1 } @exists_changed;
 595
 596         foreach my $p ("templates/page.tmpl", keys %{$depends_simple{""}}) {
 597                 if ($rendered{$p} || grep { $_ eq $p } @$del) {
 598                         foreach my $f (@$files) {
 599                                 next if $rendered{$f};
 600                                 render($f, sprintf(gettext("building %s, which depends on %s"), $f, $p));
 601                         }
 602                         return 0;
 603                 }
 604         }
 605
 606         foreach my $f (@$files) {
 607                 next if $rendered{$f};
 608                 my $p=pagename($f);
 609                 my $reason = undef;
 610
 611                 if (exists $depends_simple{$p} && ! defined $reason) {
 612                         foreach my $d (keys %{$depends_simple{$p}}) {
 613                                 if (($depends_simple{$p}{$d} & $IkiWiki::DEPEND_CONTENT &&
 614                                      $lc_changed{$d})
 615                                     ||
 616                                     ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_PRESENCE &&
 617                                      $lc_exists_changed{$d})
 618                                     ||
 619                                     ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_LINKS &&
 620                                      $linkchangers->{$d})
 621                                 ) {
 622                                         $reason = $d;
 623                                         last;
 624                                 }
 625                         }
 626                 }
 627
 628                 if (exists $depends{$p} && ! defined $reason) {
 629                         foreach my $dep (keys %{$depends{$p}}) {
 630                                 my $sub=pagespec_translate($dep);
 631                                 next unless defined $sub;
 632
 633                                 # only consider internal files
 634                                 # if the page explicitly depends
 635                                 # on such files
 636                                 my $internal_dep=$dep =~ /internal\(/;
 637
 638                                 my $in=sub {
 639                                         my $list=shift;
 640                                         my $type=shift;
 641                                         foreach my $file (@$list) {
 642                                                 next if $file eq $f;
 643                                                 my $page=pagename($file);
 644                                                 if ($sub->($page, location => $p)) {
 645                                                         if ($type == $IkiWiki::DEPEND_LINKS) {
 646                                                                 next unless $linkchangers->{lc($page)};
 647                                                         }
 648                                                         $reason=$page;
 649                                                         return 1;
 650                                                 }
 651                                         }
 652                                         return undef;
 653                                 };
 654
 655                                 if ($depends{$p}{$dep} & $IkiWiki::DEPEND_CONTENT) {
 656                                         last if $in->(\@changed, $IkiWiki::DEPEND_CONTENT);
 657                                         last if $internal_dep && (
 658                                                 $in->($internal_new, $IkiWiki::DEPEND_CONTENT) ||
 659                                                 $in->($internal_del, $IkiWiki::DEPEND_CONTENT) ||
 660                                                 $in->($internal_changed, $IkiWiki::DEPEND_CONTENT)
 661                                         );
 662                                 }
 663                                 if ($depends{$p}{$dep} & $IkiWiki::DEPEND_PRESENCE) {
 664                                         last if $in->(\@exists_changed, $IkiWiki::DEPEND_PRESENCE);
 665                                         last if $internal_dep && (
 666                                                 $in->($internal_new, $IkiWiki::DEPEND_PRESENCE) ||
 667                                                 $in->($internal_del, $IkiWiki::DEPEND_PRESENCE)
 668                                         );
 669                                 }
 670                                 if ($depends{$p}{$dep} & $IkiWiki::DEPEND_LINKS) {
 671                                         last if $in->(\@changed, $IkiWiki::DEPEND_LINKS);
 672                                         last if $internal_dep && (
 673                                                 $in->($internal_new, $IkiWiki::DEPEND_LINKS) ||
 674                                                 $in->($internal_del, $IkiWiki::DEPEND_LINKS) ||
 675                                                 $in->($internal_changed, $IkiWiki::DEPEND_LINKS)
 676                                         );
 677                                 }
 678                         }
 679                 }
 680
 681                 if (defined $reason) {
 682                         render($f, sprintf(gettext("building %s, which depends on %s"), $f, $reason));
 683                         return 1;
 684                 }
 685         }
 686
 687         return 0;
 688 }
 689
 690 sub render_backlinks ($) {
 691         my $backlinkchanged=shift;
 692         foreach my $link (keys %$backlinkchanged) {
 693                 my $linkfile=$pagesources{$link};
 694                 if (defined $linkfile) {
 695                         render($linkfile, sprintf(gettext("building %s, to update its backlinks"), $linkfile));
 696                 }
 697         }
 698 }
 699
 700 sub gen_autofile ($$$) {
 701         my $autofile=shift;
 702         my $pages=shift;
 703         my $del=shift;
 704
 705         if (file_pruned($autofile)) {
 706                 return;
 707         }
 708
 709         my ($file)="$config{srcdir}/$autofile" =~ /$config{wiki_file_regexp}/; # untaint
 710         if (! defined $file) {
 711                 return;
 712         }
 713
 714         # Remember autofiles that were tried, and never try them again later.
 715         if (exists $wikistate{$autofiles{$autofile}{plugin}}{autofile}{$autofile}) {
 716                 return;
 717         }
 718         $wikistate{$autofiles{$autofile}{plugin}}{autofile}{$autofile}=1;
 719
 720         if (srcfile($autofile, 1) || file_pruned($autofile)) {
 721                 return;
 722         }
 723
 724         if (-l $file || -d _ || -e _) {
 725                 return;
 726         }
 727
 728         my $page = pagename($file);
 729         if ($pages->{$page}) {
 730                 return;
 731         }
 732
 733         if (grep { $_ eq $autofile } @$del) {
 734                 return;
 735         }
 736
 737         $autofiles{$autofile}{generator}->();
 738         $pages->{$page}=1;
 739         return 1;
 740 }
 741
 742
 743 sub refresh () {
 744         srcdir_check();
 745         run_hooks(refresh => sub { shift->() });
 746         my ($files, $pages)=find_src_files();
 747         my ($new, $internal_new)=find_new_files($files);
 748         my ($del, $internal_del)=find_del_files($pages);
 749         my ($changed, $internal_changed)=find_changed($files);
 750         run_hooks(needsbuild => sub { shift->($changed) });
 751         my $oldlink_targets=calculate_old_links($changed, $del);
 752
 753         foreach my $file (@$changed) {
 754                 scan($file);
 755         }
 756
 757         foreach my $autofile (keys %autofiles) {
 758                 if (gen_autofile($autofile, $pages, $del)) {
 759                         push @{$files}, $autofile;
 760                         push @{$new}, $autofile if find_new_files([$autofile]);
 761                         push @{$changed}, $autofile if find_changed([$autofile]);
 762
 763                         scan($autofile);
 764                 }
 765         }
 766
 767         calculate_links();
 768
 769         remove_del(@$del, @$internal_del);
 770
 771         foreach my $file (@$changed) {
 772                 render($file, sprintf(gettext("building %s"), $file));
 773         }
 774         foreach my $file (@$internal_new, @$internal_del, @$internal_changed) {
 775                 derender_internal($file);
 776         }
 777
 778         my ($backlinkchanged, $linkchangers)=calculate_changed_links($changed,
 779                 $del, $oldlink_targets);
 780
 781         foreach my $file (@$new, @$del) {
 782                 render_linkers($file);
 783         }
 784
 785         if (@$changed || @$internal_changed ||
 786             @$del || @$internal_del || @$internal_new) {
 787                 1 while render_dependent($files, $new, $internal_new,
 788                         $del, $internal_del, $internal_changed,
 789                         $linkchangers);
 790         }
 791
 792         render_backlinks($backlinkchanged);
 793         remove_unrendered();
 794
 795         if (@$del) {
 796                 run_hooks(delete => sub { shift->(@$del) });
 797         }
 798         if (%rendered) {
 799                 run_hooks(change => sub { shift->(keys %rendered) });
 800         }
 801 }
 802
 803 sub clean_rendered {
 804         lockwiki();
 805         loadindex();
 806         remove_unrendered();
 807         foreach my $page (keys %oldrenderedfiles) {
 808                 foreach my $file (@{$oldrenderedfiles{$page}}) {
 809                         prune($config{destdir}."/".$file);
 810                 }
 811         }
 812 }
 813
 814 sub commandline_render () {
 815         lockwiki();
 816         loadindex();
 817         unlockwiki();
 818
 819         my $srcfile=possibly_foolish_untaint($config{render});
 820         my $file=$srcfile;
 821         $file=~s/\Q$config{srcdir}\E\/?//;
 822
 823         my $type=pagetype($file);
 824         die sprintf(gettext("ikiwiki: cannot build %s"), $srcfile)."\n" unless defined $type;
 825         my $content=readfile($srcfile);
 826         my $page=pagename($file);
 827         $pagesources{$page}=$file;
 828         $content=filter($page, $page, $content);
 829         $content=preprocess($page, $page, $content);
 830         $content=linkify($page, $page, $content);
 831         $content=htmlize($page, $page, $type, $content);
 832         $pagemtime{$page}=(stat($srcfile))[9];
 833         $pagectime{$page}=$pagemtime{$page} if ! exists $pagectime{$page};
 834
 835         print genpage($page, $content);
 836         exit 0;
 837 }
 838
 839 1