10 my (%backlinks, %rendered);
12 my $links_calculated=0;
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 $page;
25 push @{$brokenlinks{$link}}, $page;
32 sub backlink_pages ($) {
37 return keys %{$backlinks{$page}};
44 foreach my $p (backlink_pages($page)) {
45 my $href=urlto($p, $page);
47 # Trim common dir prefixes from both pages.
49 my $page_trimmed=$page;
51 1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
53 $p_trimmed=~s/^\Q$dir\E// &&
54 $page_trimmed=~s/^\Q$dir\E//;
56 push @links, { url => $href, page => pagetitle($p_trimmed) };
65 run_hooks(postscan => sub {
66 shift->(page => $page, content => $content);
70 run_hooks(templatefile => sub {
71 return if defined $templatefile;
72 my $file=shift->(page => $page);
73 if (defined $file && defined template_file($file)) {
77 my $template=template_depends(
78 defined $templatefile ? $templatefile : 'page.tmpl', $page,
82 if (length $config{cgiurl}) {
83 if (IkiWiki->can("cgi_editpage")) {
84 $template->param(editurl => cgiurl(do => "edit", page => $page));
87 if (exists $hooks{auth}) {
88 $template->param(prefsurl => cgiurl(do => "prefs"));
93 if (defined $config{historyurl} && length $config{historyurl}) {
94 my $u=$config{historyurl};
95 $u=~s/\[\[file\]\]/$pagesources{$page}/g;
96 $template->param(historyurl => $u);
99 if ($config{discussion}) {
100 if ($page !~ /.*\/\Q$config{discussionpage}\E$/i &&
101 (length $config{cgiurl} ||
102 exists $links{$page."/".$config{discussionpage}})) {
103 $template->param(discussionlink => htmllink($page, $page, $config{discussionpage}, noimageinline => 1, forcesubpage => 1));
109 $template->param(have_actions => 1);
112 my @backlinks=sort { $a->{page} cmp $b->{page} } backlinks($page);
113 my ($backlinks, $more_backlinks);
114 if (@backlinks <= $config{numbacklinks} || ! $config{numbacklinks}) {
115 $backlinks=\@backlinks;
119 $backlinks=[@backlinks[0..$config{numbacklinks}-1]];
120 $more_backlinks=[@backlinks[$config{numbacklinks}..$#backlinks]];
124 title => $page eq 'index'
126 : pagetitle(basename($page)),
127 wikiname => $config{wikiname},
129 backlinks => $backlinks,
130 more_backlinks => $more_backlinks,
131 mtime => displaytime($pagemtime{$page}),
132 ctime => displaytime($pagectime{$page}),
133 baseurl => baseurl($page),
136 run_hooks(pagetemplate => sub {
137 shift->(page => $page, destpage => $page, template => $template);
140 $content=$template->output;
142 run_hooks(format => sub {
155 debug(sprintf(gettext("scanning %s"), $file));
157 my $type=pagetype($file);
159 my $srcfile=srcfile($file);
160 my $content=readfile($srcfile);
161 my $page=pagename($file);
162 will_render($page, htmlpage($page), 1);
164 if ($config{discussion}) {
165 # Discussion links are a special case since they're
166 # not in the text of the page, but on its template.
167 $links{$page}=[ $page."/".lc($config{discussionpage}) ];
172 delete $typedlinks{$page};
174 run_hooks(scan => sub {
181 # Preprocess in scan-only mode.
182 preprocess($page, $page, $content, 1);
185 will_render($file, $file, 1);
189 sub fast_file_copy (@) {
197 my ($len, $buf, $written);
198 while ($len = sysread $srcfd, $buf, $blksize) {
199 if (! defined $len) {
200 next if $! =~ /^Interrupted/;
201 error("failed to read $srcfile: $!", $cleanup);
205 defined($written = syswrite $destfd, $buf, $len, $offset)
206 or error("failed to write $destfile: $!", $cleanup);
215 return if $rendered{$file};
219 my $type=pagetype($file);
220 my $srcfile=srcfile($file);
222 my $page=pagename($file);
223 delete $depends{$page};
224 delete $depends_simple{$page};
225 will_render($page, htmlpage($page), 1);
226 return if $type=~/^_/;
228 my $content=htmlize($page, $page, $type,
229 linkify($page, $page,
230 preprocess($page, $page,
232 readfile($srcfile)))));
234 my $output=htmlpage($page);
235 writefile($output, $config{destdir}, genpage($page, $content));
238 delete $depends{$file};
239 delete $depends_simple{$file};
240 will_render($file, $file, 1);
242 if ($config{hardlink}) {
243 # only hardlink if owned by same user
244 my @stat=stat($srcfile);
245 if ($stat[4] == $>) {
246 prep_writefile($file, $config{destdir});
247 unlink($config{destdir}."/".$file);
248 if (link($srcfile, $config{destdir}."/".$file)) {
252 # if hardlink fails, fall back to copying
255 my $srcfd=readfile($srcfile, 1, 1);
256 writefile($file, $config{destdir}, undef, 1, sub {
257 fast_file_copy($srcfile, $file, $srcfd, @_);
266 my $dir=dirname($file);
267 while (rmdir($dir)) {
272 sub srcdir_check () {
273 # security check, avoid following symlinks in the srcdir path by default
274 my $test=$config{srcdir};
275 while (length $test) {
276 if (-l $test && ! $config{allow_symlinks_before_srcdir}) {
277 error(sprintf(gettext("symlink found in srcdir path (%s) -- set allow_symlinks_before_srcdir to allow this"), $test));
279 unless ($test=~s/\/+$//) {
280 $test=dirname($test);
286 sub find_src_files () {
289 eval q{use File::Find};
292 my ($page, $dir, $underlay);
294 my $file=decode_utf8($_);
296 return if -l $file || -d _;
297 $file=~s/^\Q$dir\E\/?//;
298 return if ! length $file;
299 $page = pagename($file);
300 if (! exists $pagesources{$page} &&
301 file_pruned($file)) {
302 $File::Find::prune=1;
306 my ($f) = $file =~ /$config{wiki_file_regexp}/; # untaint
308 warn(sprintf(gettext("skipping bad filename %s"), $file)."\n");
312 # avoid underlaydir override attacks; see security.mdwn
313 if (! -l "$config{srcdir}/$f" && ! -e _) {
314 if (! $pages{$page}) {
323 debug(sprintf(gettext("%s has multiple possible source pages"), $page));
332 }, $dir=$config{srcdir});
334 foreach (@{$config{underlaydirs}}, $config{underlaydir}) {
340 return \@files, \%pages;
343 sub find_new_files ($) {
350 foreach my $file (@$files) {
351 my $page=pagename($file);
352 if (exists $pagesources{$page} && $pagesources{$page} ne $file) {
353 # the page has changed its type
354 $forcerebuild{$page}=1;
356 $pagesources{$page}=$file;
357 if (! $pagemtime{$page}) {
358 if (isinternal($page)) {
359 push @internal_new, $file;
361 elsif ($config{rcs}) {
363 if ($config{gettime} && -e "$config{srcdir}/$file") {
364 if (! $times_noted) {
365 debug(sprintf(gettext("querying %s for file creation and modification times.."), $config{rcs}));
370 my $ctime=rcs_getctime("$config{srcdir}/$file");
372 $pagectime{$page}=$ctime;
380 $mtime=rcs_getmtime("$config{srcdir}/$file");
386 utime($mtime, $mtime, "$config{srcdir}/$file");
390 $pagecase{lc $page}=$page;
391 if (! exists $pagectime{$page}) {
392 $pagectime{$page}=(srcfile_stat($file))[10];
397 return \@new, \@internal_new;
400 sub find_del_files ($) {
405 foreach my $page (keys %pagemtime) {
406 if (! $pages->{$page}) {
407 if (isinternal($page)) {
408 push @internal_del, $pagesources{$page};
411 push @del, $pagesources{$page};
414 delete $typedlinks{$page};
415 $renderedfiles{$page}=[];
420 return \@del, \@internal_del;
424 foreach my $file (@_) {
425 my $page=pagename($file);
426 if (! isinternal($page)) {
427 debug(sprintf(gettext("removing obsolete %s"), $page));
430 foreach my $old (@{$oldrenderedfiles{$page}}) {
431 prune($config{destdir}."/".$old);
434 foreach my $source (keys %destsources) {
435 if ($destsources{$source} eq $page) {
436 delete $destsources{$source};
440 delete $pagecase{lc $page};
441 delete $pagesources{$page};
445 sub find_changed ($) {
448 my @internal_changed;
449 foreach my $file (@$files) {
450 my $page=pagename($file);
451 my ($srcfile, @stat)=srcfile_stat($file);
452 if (! exists $pagemtime{$page} ||
453 $stat[9] > $pagemtime{$page} ||
454 $forcerebuild{$page}) {
455 $pagemtime{$page}=$stat[9];
457 if (isinternal($page)) {
458 # Preprocess internal page in scan-only mode.
459 preprocess($page, $page, readfile($srcfile), 1);
460 push @internal_changed, $file;
463 push @changed, $file;
467 return \@changed, \@internal_changed;
470 sub calculate_old_links ($$) {
471 my ($changed, $del)=@_;
473 foreach my $file (@$changed, @$del) {
474 my $page=pagename($file);
475 if (exists $oldlinks{$page}) {
476 foreach my $l (@{$oldlinks{$page}}) {
477 $oldlink_targets{$page}{$l}=bestlink($page, $l);
481 return \%oldlink_targets;
484 sub derender_internal ($) {
486 my $page=pagename($file);
487 delete $depends{$page};
488 delete $depends_simple{$page};
489 foreach my $old (@{$renderedfiles{$page}}) {
490 delete $destsources{$old};
492 $renderedfiles{$page}=[];
495 sub render_linkers ($) {
498 foreach my $page (keys %{$backlinks{$p}}) {
499 my $file=$pagesources{$page};
500 render($file, sprintf(gettext("building %s, which links to %s"), $file, $p));
504 sub remove_unrendered () {
505 foreach my $src (keys %rendered) {
506 my $page=pagename($src);
507 foreach my $file (@{$oldrenderedfiles{$page}}) {
508 if (! grep { $_ eq $file } @{$renderedfiles{$page}}) {
509 debug(sprintf(gettext("removing %s, no longer built by %s"), $file, $page));
510 prune($config{destdir}."/".$file);
516 sub link_types_changed ($$) {
517 # each is of the form { type => { link => 1 } }
521 return 0 if !defined $new && !defined $old;
522 return 1 if (!defined $new && %$old) || (!defined $old && %$new);
524 while (my ($type, $links) = each %$new) {
525 foreach my $link (keys %$links) {
526 return 1 unless exists $old->{$type}{$link};
530 while (my ($type, $links) = each %$old) {
531 foreach my $link (keys %$links) {
532 return 1 unless exists $new->{$type}{$link};
539 sub calculate_changed_links ($$$) {
540 my ($changed, $del, $oldlink_targets)=@_;
542 my (%backlinkchanged, %linkchangers);
544 foreach my $file (@$changed, @$del) {
545 my $page=pagename($file);
547 if (exists $links{$page}) {
548 foreach my $l (@{$links{$page}}) {
549 my $target=bestlink($page, $l);
550 if (! exists $oldlink_targets->{$page}{$l} ||
551 $target ne $oldlink_targets->{$page}{$l}) {
552 $backlinkchanged{$target}=1;
553 $linkchangers{lc($page)}=1;
555 delete $oldlink_targets->{$page}{$l};
558 if (exists $oldlink_targets->{$page} &&
559 %{$oldlink_targets->{$page}}) {
560 foreach my $target (values %{$oldlink_targets->{$page}}) {
561 $backlinkchanged{$target}=1;
563 $linkchangers{lc($page)}=1;
566 # we currently assume that changing the type of a link doesn't
568 if (!exists $linkchangers{lc($page)}) {
569 if (link_types_changed($typedlinks{$page}, $oldtypedlinks{$page})) {
570 $linkchangers{lc($page)}=1;
575 return \%backlinkchanged, \%linkchangers;
578 sub render_dependent ($$$$$$$) {
579 my ($files, $new, $internal_new, $del, $internal_del,
580 $internal_changed, $linkchangers)=@_;
582 my @changed=(keys %rendered, @$del);
583 my @exists_changed=(@$new, @$del);
585 my %lc_changed = map { lc(pagename($_)) => 1 } @changed;
586 my %lc_exists_changed = map { lc(pagename($_)) => 1 } @exists_changed;
588 foreach my $f (@$files) {
589 next if $rendered{$f};
593 if (exists $depends_simple{$p}) {
594 foreach my $d (keys %{$depends_simple{$p}}) {
595 if (($depends_simple{$p}{$d} & $IkiWiki::DEPEND_CONTENT &&
598 ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_PRESENCE &&
599 $lc_exists_changed{$d})
601 ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_LINKS &&
610 if (exists $depends{$p} && ! defined $reason) {
611 foreach my $dep (keys %{$depends{$p}}) {
612 my $sub=pagespec_translate($dep);
613 next unless defined $sub;
615 # only consider internal files
616 # if the page explicitly depends
618 my $internal_dep=$dep =~ /internal\(/;
623 foreach my $file (@$list) {
625 my $page=pagename($file);
626 if ($sub->($page, location => $p)) {
627 if ($type == $IkiWiki::DEPEND_LINKS) {
628 next unless $linkchangers->{lc($page)};
637 if ($depends{$p}{$dep} & $IkiWiki::DEPEND_CONTENT) {
638 last if $in->(\@changed, $IkiWiki::DEPEND_CONTENT);
639 last if $internal_dep && (
640 $in->($internal_new, $IkiWiki::DEPEND_CONTENT) ||
641 $in->($internal_del, $IkiWiki::DEPEND_CONTENT) ||
642 $in->($internal_changed, $IkiWiki::DEPEND_CONTENT)
645 if ($depends{$p}{$dep} & $IkiWiki::DEPEND_PRESENCE) {
646 last if $in->(\@exists_changed, $IkiWiki::DEPEND_PRESENCE);
647 last if $internal_dep && (
648 $in->($internal_new, $IkiWiki::DEPEND_PRESENCE) ||
649 $in->($internal_del, $IkiWiki::DEPEND_PRESENCE)
652 if ($depends{$p}{$dep} & $IkiWiki::DEPEND_LINKS) {
653 last if $in->(\@changed, $IkiWiki::DEPEND_LINKS);
654 last if $internal_dep && (
655 $in->($internal_new, $IkiWiki::DEPEND_LINKS) ||
656 $in->($internal_del, $IkiWiki::DEPEND_LINKS) ||
657 $in->($internal_changed, $IkiWiki::DEPEND_LINKS)
663 if (defined $reason) {
664 render($f, sprintf(gettext("building %s, which depends on %s"), $f, $reason));
672 sub render_backlinks ($) {
673 my $backlinkchanged=shift;
674 foreach my $link (keys %$backlinkchanged) {
675 my $linkfile=$pagesources{$link};
676 if (defined $linkfile) {
677 render($linkfile, sprintf(gettext("building %s, to update its backlinks"), $linkfile));
682 sub gen_autofile ($$$) {
687 if (file_pruned($autofile)) {
691 my ($file)="$config{srcdir}/$autofile" =~ /$config{wiki_file_regexp}/; # untaint
692 if (! defined $file) {
696 # Remember autofiles that were tried, and never try them again later.
697 if (exists $wikistate{$autofiles{$autofile}{plugin}}{autofile}{$autofile}) {
700 $wikistate{$autofiles{$autofile}{plugin}}{autofile}{$autofile}=1;
702 if (srcfile($autofile, 1) || file_pruned($autofile)) {
706 if (-l $file || -d _ || -e _) {
710 my $page = pagename($file);
711 if ($pages->{$page}) {
715 if (grep { $_ eq $autofile } @$del) {
719 $autofiles{$autofile}{generator}->();
727 run_hooks(refresh => sub { shift->() });
728 my ($files, $pages)=find_src_files();
729 my ($new, $internal_new)=find_new_files($files);
730 my ($del, $internal_del)=find_del_files($pages);
731 my ($changed, $internal_changed)=find_changed($files);
732 run_hooks(needsbuild => sub { shift->($changed) });
733 my $oldlink_targets=calculate_old_links($changed, $del);
735 foreach my $file (@$changed) {
739 foreach my $autofile (keys %autofiles) {
740 if (gen_autofile($autofile, $pages, $del)) {
741 push @{$files}, $autofile;
742 push @{$new}, $autofile if find_new_files([$autofile]);
743 push @{$changed}, $autofile if find_changed([$autofile]);
751 remove_del(@$del, @$internal_del);
753 foreach my $file (@$changed) {
754 render($file, sprintf(gettext("building %s"), $file));
756 foreach my $file (@$internal_new, @$internal_del, @$internal_changed) {
757 derender_internal($file);
760 my ($backlinkchanged, $linkchangers)=calculate_changed_links($changed,
761 $del, $oldlink_targets);
763 foreach my $file (@$new, @$del) {
764 render_linkers($file);
767 if (@$changed || @$internal_changed ||
768 @$del || @$internal_del || @$internal_new) {
769 1 while render_dependent($files, $new, $internal_new,
770 $del, $internal_del, $internal_changed,
774 render_backlinks($backlinkchanged);
778 run_hooks(delete => sub { shift->(@$del) });
781 run_hooks(change => sub { shift->(keys %rendered) });
789 foreach my $page (keys %oldrenderedfiles) {
790 foreach my $file (@{$oldrenderedfiles{$page}}) {
791 prune($config{destdir}."/".$file);
796 sub commandline_render () {
801 my $srcfile=possibly_foolish_untaint($config{render});
803 $file=~s/\Q$config{srcdir}\E\/?//;
805 my $type=pagetype($file);
806 die sprintf(gettext("ikiwiki: cannot build %s"), $srcfile)."\n" unless defined $type;
807 my $content=readfile($srcfile);
808 my $page=pagename($file);
809 $pagesources{$page}=$file;
810 $content=filter($page, $page, $content);
811 $content=preprocess($page, $page, $content);
812 $content=linkify($page, $page, $content);
813 $content=htmlize($page, $page, $type, $content);
814 $pagemtime{$page}=(stat($srcfile))[9];
815 $pagectime{$page}=$pagemtime{$page} if ! exists $pagectime{$page};
817 print genpage($page, $content);