820 lines
19 KiB
Perl
820 lines
19 KiB
Perl
#!/usr/bin/perl
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package IkiWiki;
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use warnings;
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use strict;
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use IkiWiki;
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use Encode;
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my (%backlinks, %rendered);
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our %brokenlinks;
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my $links_calculated=0;
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sub calculate_links () {
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return if $links_calculated;
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%backlinks=%brokenlinks=();
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foreach my $page (keys %links) {
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foreach my $link (@{$links{$page}}) {
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my $bestlink=bestlink($page, $link);
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if (length $bestlink) {
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$backlinks{$bestlink}{$page}=1
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if $bestlink ne $page;
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}
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else {
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push @{$brokenlinks{$link}}, $page;
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}
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}
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}
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$links_calculated=1;
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}
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sub backlink_pages ($) {
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my $page=shift;
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calculate_links();
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return keys %{$backlinks{$page}};
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}
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sub backlinks ($) {
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my $page=shift;
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my @links;
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foreach my $p (backlink_pages($page)) {
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my $href=urlto($p, $page);
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# Trim common dir prefixes from both pages.
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my $p_trimmed=$p;
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my $page_trimmed=$page;
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my $dir;
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1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
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defined $dir &&
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$p_trimmed=~s/^\Q$dir\E// &&
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$page_trimmed=~s/^\Q$dir\E//;
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push @links, { url => $href, page => pagetitle($p_trimmed) };
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}
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return @links;
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}
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sub genpage ($$) {
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my $page=shift;
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my $content=shift;
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run_hooks(postscan => sub {
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shift->(page => $page, content => $content);
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});
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my $templatefile;
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run_hooks(templatefile => sub {
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return if defined $templatefile;
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my $file=shift->(page => $page);
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if (defined $file && defined template_file($file)) {
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$templatefile=$file;
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}
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});
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my $template=template(defined $templatefile ? $templatefile : 'page.tmpl', blind_cache => 1);
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my $actions=0;
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if (length $config{cgiurl}) {
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if (IkiWiki->can("cgi_editpage")) {
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$template->param(editurl => cgiurl(do => "edit", page => $page));
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$actions++;
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}
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if (exists $hooks{auth}) {
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$template->param(prefsurl => cgiurl(do => "prefs"));
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$actions++;
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}
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}
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if (defined $config{historyurl} && length $config{historyurl}) {
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my $u=$config{historyurl};
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$u=~s/\[\[file\]\]/$pagesources{$page}/g;
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$template->param(historyurl => $u);
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$actions++;
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}
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if ($config{discussion}) {
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if ($page !~ /.*\/\Q$config{discussionpage}\E$/i &&
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(length $config{cgiurl} ||
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exists $links{$page."/".$config{discussionpage}})) {
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$template->param(discussionlink => htmllink($page, $page, $config{discussionpage}, noimageinline => 1, forcesubpage => 1));
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$actions++;
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}
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}
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if ($actions) {
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$template->param(have_actions => 1);
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}
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my @backlinks=sort { $a->{page} cmp $b->{page} } backlinks($page);
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my ($backlinks, $more_backlinks);
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if (@backlinks <= $config{numbacklinks} || ! $config{numbacklinks}) {
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$backlinks=\@backlinks;
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$more_backlinks=[];
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}
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else {
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$backlinks=[@backlinks[0..$config{numbacklinks}-1]];
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$more_backlinks=[@backlinks[$config{numbacklinks}..$#backlinks]];
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}
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$template->param(
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title => $page eq 'index'
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? $config{wikiname}
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: pagetitle(basename($page)),
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wikiname => $config{wikiname},
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content => $content,
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backlinks => $backlinks,
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more_backlinks => $more_backlinks,
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mtime => displaytime($pagemtime{$page}),
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ctime => displaytime($pagectime{$page}),
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baseurl => baseurl($page),
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);
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run_hooks(pagetemplate => sub {
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shift->(page => $page, destpage => $page, template => $template);
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});
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$content=$template->output;
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run_hooks(format => sub {
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$content=shift->(
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page => $page,
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content => $content,
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);
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});
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return $content;
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}
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sub scan ($) {
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my $file=shift;
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debug(sprintf(gettext("scanning %s"), $file));
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my $type=pagetype($file);
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if (defined $type) {
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my $srcfile=srcfile($file);
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my $content=readfile($srcfile);
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my $page=pagename($file);
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will_render($page, htmlpage($page), 1);
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if ($config{discussion}) {
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# Discussion links are a special case since they're
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# not in the text of the page, but on its template.
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$links{$page}=[ $page."/".lc($config{discussionpage}) ];
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}
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else {
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$links{$page}=[];
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}
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delete $typedlinks{$page};
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run_hooks(scan => sub {
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shift->(
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page => $page,
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content => $content,
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);
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});
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# Preprocess in scan-only mode.
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preprocess($page, $page, $content, 1);
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}
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else {
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will_render($file, $file, 1);
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}
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}
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sub fast_file_copy (@) {
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my $srcfile=shift;
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my $destfile=shift;
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my $srcfd=shift;
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my $destfd=shift;
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my $cleanup=shift;
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my $blksize = 16384;
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my ($len, $buf, $written);
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while ($len = sysread $srcfd, $buf, $blksize) {
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if (! defined $len) {
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next if $! =~ /^Interrupted/;
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error("failed to read $srcfile: $!", $cleanup);
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}
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my $offset = 0;
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while ($len) {
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defined($written = syswrite $destfd, $buf, $len, $offset)
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or error("failed to write $destfile: $!", $cleanup);
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$len -= $written;
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$offset += $written;
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}
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}
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}
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sub render ($$) {
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my $file=shift;
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return if $rendered{$file};
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debug(shift);
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$rendered{$file}=1;
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my $type=pagetype($file);
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my $srcfile=srcfile($file);
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if (defined $type) {
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my $page=pagename($file);
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delete $depends{$page};
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delete $depends_simple{$page};
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will_render($page, htmlpage($page), 1);
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return if $type=~/^_/;
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my $content=htmlize($page, $page, $type,
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linkify($page, $page,
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preprocess($page, $page,
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filter($page, $page,
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readfile($srcfile)))));
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my $output=htmlpage($page);
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writefile($output, $config{destdir}, genpage($page, $content));
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}
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else {
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delete $depends{$file};
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delete $depends_simple{$file};
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will_render($file, $file, 1);
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if ($config{hardlink}) {
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# only hardlink if owned by same user
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my @stat=stat($srcfile);
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if ($stat[4] == $>) {
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prep_writefile($file, $config{destdir});
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unlink($config{destdir}."/".$file);
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if (link($srcfile, $config{destdir}."/".$file)) {
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return;
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}
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}
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# if hardlink fails, fall back to copying
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}
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my $srcfd=readfile($srcfile, 1, 1);
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writefile($file, $config{destdir}, undef, 1, sub {
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fast_file_copy($srcfile, $file, $srcfd, @_);
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});
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}
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}
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sub prune ($) {
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my $file=shift;
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unlink($file);
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my $dir=dirname($file);
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while (rmdir($dir)) {
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$dir=dirname($dir);
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}
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}
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sub srcdir_check () {
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# security check, avoid following symlinks in the srcdir path by default
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my $test=$config{srcdir};
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while (length $test) {
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if (-l $test && ! $config{allow_symlinks_before_srcdir}) {
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error(sprintf(gettext("symlink found in srcdir path (%s) -- set allow_symlinks_before_srcdir to allow this"), $test));
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}
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unless ($test=~s/\/+$//) {
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$test=dirname($test);
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}
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}
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}
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sub find_src_files () {
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my @files;
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my %pages;
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eval q{use File::Find};
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error($@) if $@;
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my ($page, $dir, $underlay);
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my $helper=sub {
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my $file=decode_utf8($_);
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return if -l $file || -d _;
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$file=~s/^\Q$dir\E\/?//;
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return if ! length $file;
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$page = pagename($file);
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if (! exists $pagesources{$page} &&
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file_pruned($file)) {
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$File::Find::prune=1;
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return;
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}
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my ($f) = $file =~ /$config{wiki_file_regexp}/; # untaint
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if (! defined $f) {
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warn(sprintf(gettext("skipping bad filename %s"), $file)."\n");
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}
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if ($underlay) {
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# avoid underlaydir override attacks; see security.mdwn
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if (! -l "$config{srcdir}/$f" && ! -e _) {
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if (! $pages{$page}) {
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push @files, $f;
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$pages{$page}=1;
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}
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}
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}
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else {
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push @files, $f;
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if ($pages{$page}) {
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debug(sprintf(gettext("%s has multiple possible source pages"), $page));
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}
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$pages{$page}=1;
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}
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};
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find({
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no_chdir => 1,
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wanted => $helper,
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}, $dir=$config{srcdir});
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$underlay=1;
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foreach (@{$config{underlaydirs}}, $config{underlaydir}) {
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find({
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no_chdir => 1,
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wanted => $helper,
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}, $dir=$_);
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};
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return \@files, \%pages;
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}
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sub find_new_files ($) {
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my $files=shift;
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my @new;
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my @internal_new;
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my $times_noted;
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foreach my $file (@$files) {
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my $page=pagename($file);
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if (exists $pagesources{$page} && $pagesources{$page} ne $file) {
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# the page has changed its type
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$forcerebuild{$page}=1;
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}
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$pagesources{$page}=$file;
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if (! $pagemtime{$page}) {
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if (isinternal($page)) {
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push @internal_new, $file;
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}
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elsif ($config{rcs}) {
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push @new, $file;
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if ($config{gettime} && -e "$config{srcdir}/$file") {
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if (! $times_noted) {
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debug(sprintf(gettext("querying %s for file creation and modification times.."), $config{rcs}));
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$times_noted=1;
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}
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eval {
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my $ctime=rcs_getctime("$config{srcdir}/$file");
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if ($ctime > 0) {
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$pagectime{$page}=$ctime;
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}
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};
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if ($@) {
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print STDERR $@;
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}
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my $mtime;
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eval {
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$mtime=rcs_getmtime("$config{srcdir}/$file");
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};
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if ($@) {
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print STDERR $@;
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}
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elsif ($mtime > 0) {
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utime($mtime, $mtime, "$config{srcdir}/$file");
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}
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}
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}
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$pagecase{lc $page}=$page;
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if (! exists $pagectime{$page}) {
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$pagectime{$page}=(srcfile_stat($file))[10];
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}
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}
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}
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return \@new, \@internal_new;
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}
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sub find_del_files ($) {
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my $pages=shift;
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my @del;
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my @internal_del;
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foreach my $page (keys %pagemtime) {
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if (! $pages->{$page}) {
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if (isinternal($page)) {
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push @internal_del, $pagesources{$page};
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}
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else {
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push @del, $pagesources{$page};
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}
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$links{$page}=[];
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delete $typedlinks{$page};
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$renderedfiles{$page}=[];
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$pagemtime{$page}=0;
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}
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}
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return \@del, \@internal_del;
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}
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sub remove_del (@) {
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foreach my $file (@_) {
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my $page=pagename($file);
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if (! isinternal($page)) {
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debug(sprintf(gettext("removing obsolete %s"), $page));
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}
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foreach my $old (@{$oldrenderedfiles{$page}}) {
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prune($config{destdir}."/".$old);
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}
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foreach my $source (keys %destsources) {
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if ($destsources{$source} eq $page) {
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delete $destsources{$source};
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}
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}
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delete $pagecase{lc $page};
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delete $pagesources{$page};
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}
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}
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sub find_changed ($) {
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my $files=shift;
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my @changed;
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my @internal_changed;
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foreach my $file (@$files) {
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my $page=pagename($file);
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my ($srcfile, @stat)=srcfile_stat($file);
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if (! exists $pagemtime{$page} ||
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$stat[9] > $pagemtime{$page} ||
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$forcerebuild{$page}) {
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$pagemtime{$page}=$stat[9];
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if (isinternal($page)) {
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# Preprocess internal page in scan-only mode.
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preprocess($page, $page, readfile($srcfile), 1);
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push @internal_changed, $file;
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}
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else {
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push @changed, $file;
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}
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}
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}
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return \@changed, \@internal_changed;
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}
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sub calculate_old_links ($$) {
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my ($changed, $del)=@_;
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my %oldlink_targets;
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foreach my $file (@$changed, @$del) {
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my $page=pagename($file);
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if (exists $oldlinks{$page}) {
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foreach my $l (@{$oldlinks{$page}}) {
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$oldlink_targets{$page}{$l}=bestlink($page, $l);
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}
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}
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}
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return \%oldlink_targets;
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}
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sub derender_internal ($) {
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my $file=shift;
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my $page=pagename($file);
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delete $depends{$page};
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delete $depends_simple{$page};
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foreach my $old (@{$renderedfiles{$page}}) {
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delete $destsources{$old};
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}
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$renderedfiles{$page}=[];
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}
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sub render_linkers ($) {
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my $f=shift;
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my $p=pagename($f);
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foreach my $page (keys %{$backlinks{$p}}) {
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my $file=$pagesources{$page};
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render($file, sprintf(gettext("building %s, which links to %s"), $file, $p));
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}
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}
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sub remove_unrendered () {
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foreach my $src (keys %rendered) {
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my $page=pagename($src);
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foreach my $file (@{$oldrenderedfiles{$page}}) {
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if (! grep { $_ eq $file } @{$renderedfiles{$page}}) {
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debug(sprintf(gettext("removing %s, no longer built by %s"), $file, $page));
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prune($config{destdir}."/".$file);
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}
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}
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}
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}
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sub link_types_changed ($$) {
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# each is of the form { type => { link => 1 } }
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my $new = shift;
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my $old = shift;
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return 0 if !defined $new && !defined $old;
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return 1 if (!defined $new && %$old) || (!defined $old && %$new);
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while (my ($type, $links) = each %$new) {
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foreach my $link (keys %$links) {
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return 1 unless exists $old->{$type}{$link};
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}
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}
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while (my ($type, $links) = each %$old) {
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foreach my $link (keys %$links) {
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return 1 unless exists $new->{$type}{$link};
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}
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}
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return 0;
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}
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sub calculate_changed_links ($$$) {
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my ($changed, $del, $oldlink_targets)=@_;
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my (%backlinkchanged, %linkchangers);
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foreach my $file (@$changed, @$del) {
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my $page=pagename($file);
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if (exists $links{$page}) {
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foreach my $l (@{$links{$page}}) {
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my $target=bestlink($page, $l);
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if (! exists $oldlink_targets->{$page}{$l} ||
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$target ne $oldlink_targets->{$page}{$l}) {
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$backlinkchanged{$target}=1;
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$linkchangers{lc($page)}=1;
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}
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delete $oldlink_targets->{$page}{$l};
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}
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}
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if (exists $oldlink_targets->{$page} &&
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%{$oldlink_targets->{$page}}) {
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foreach my $target (values %{$oldlink_targets->{$page}}) {
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$backlinkchanged{$target}=1;
|
|
}
|
|
$linkchangers{lc($page)}=1;
|
|
}
|
|
|
|
# we currently assume that changing the type of a link doesn't
|
|
# change backlinks
|
|
if (!exists $linkchangers{lc($page)}) {
|
|
if (link_types_changed($typedlinks{$page}, $oldtypedlinks{$page})) {
|
|
$linkchangers{lc($page)}=1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return \%backlinkchanged, \%linkchangers;
|
|
}
|
|
|
|
sub render_dependent ($$$$$$$) {
|
|
my ($files, $new, $internal_new, $del, $internal_del,
|
|
$internal_changed, $linkchangers)=@_;
|
|
|
|
my @changed=(keys %rendered, @$del);
|
|
my @exists_changed=(@$new, @$del);
|
|
|
|
my %lc_changed = map { lc(pagename($_)) => 1 } @changed;
|
|
my %lc_exists_changed = map { lc(pagename($_)) => 1 } @exists_changed;
|
|
|
|
foreach my $f (@$files) {
|
|
next if $rendered{$f};
|
|
my $p=pagename($f);
|
|
my $reason = undef;
|
|
|
|
if (exists $depends_simple{$p}) {
|
|
foreach my $d (keys %{$depends_simple{$p}}) {
|
|
if (($depends_simple{$p}{$d} & $IkiWiki::DEPEND_CONTENT &&
|
|
$lc_changed{$d})
|
|
||
|
|
($depends_simple{$p}{$d} & $IkiWiki::DEPEND_PRESENCE &&
|
|
$lc_exists_changed{$d})
|
|
||
|
|
($depends_simple{$p}{$d} & $IkiWiki::DEPEND_LINKS &&
|
|
$linkchangers->{$d})
|
|
) {
|
|
$reason = $d;
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (exists $depends{$p} && ! defined $reason) {
|
|
foreach my $dep (keys %{$depends{$p}}) {
|
|
my $sub=pagespec_translate($dep);
|
|
next unless defined $sub;
|
|
|
|
# only consider internal files
|
|
# if the page explicitly depends
|
|
# on such files
|
|
my $internal_dep=$dep =~ /internal\(/;
|
|
|
|
my $in=sub {
|
|
my $list=shift;
|
|
my $type=shift;
|
|
foreach my $file (@$list) {
|
|
next if $file eq $f;
|
|
my $page=pagename($file);
|
|
if ($sub->($page, location => $p)) {
|
|
if ($type == $IkiWiki::DEPEND_LINKS) {
|
|
next unless $linkchangers->{lc($page)};
|
|
}
|
|
$reason=$page;
|
|
return 1;
|
|
}
|
|
}
|
|
return undef;
|
|
};
|
|
|
|
if ($depends{$p}{$dep} & $IkiWiki::DEPEND_CONTENT) {
|
|
last if $in->(\@changed, $IkiWiki::DEPEND_CONTENT);
|
|
last if $internal_dep && (
|
|
$in->($internal_new, $IkiWiki::DEPEND_CONTENT) ||
|
|
$in->($internal_del, $IkiWiki::DEPEND_CONTENT) ||
|
|
$in->($internal_changed, $IkiWiki::DEPEND_CONTENT)
|
|
);
|
|
}
|
|
if ($depends{$p}{$dep} & $IkiWiki::DEPEND_PRESENCE) {
|
|
last if $in->(\@exists_changed, $IkiWiki::DEPEND_PRESENCE);
|
|
last if $internal_dep && (
|
|
$in->($internal_new, $IkiWiki::DEPEND_PRESENCE) ||
|
|
$in->($internal_del, $IkiWiki::DEPEND_PRESENCE)
|
|
);
|
|
}
|
|
if ($depends{$p}{$dep} & $IkiWiki::DEPEND_LINKS) {
|
|
last if $in->(\@changed, $IkiWiki::DEPEND_LINKS);
|
|
last if $internal_dep && (
|
|
$in->($internal_new, $IkiWiki::DEPEND_LINKS) ||
|
|
$in->($internal_del, $IkiWiki::DEPEND_LINKS) ||
|
|
$in->($internal_changed, $IkiWiki::DEPEND_LINKS)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (defined $reason) {
|
|
render($f, sprintf(gettext("building %s, which depends on %s"), $f, $reason));
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
sub render_backlinks ($) {
|
|
my $backlinkchanged=shift;
|
|
foreach my $link (keys %$backlinkchanged) {
|
|
my $linkfile=$pagesources{$link};
|
|
if (defined $linkfile) {
|
|
render($linkfile, sprintf(gettext("building %s, to update its backlinks"), $linkfile));
|
|
}
|
|
}
|
|
}
|
|
|
|
sub gen_autofile ($$$) {
|
|
my $autofile=shift;
|
|
my $pages=shift;
|
|
my $del=shift;
|
|
|
|
if (file_pruned($autofile)) {
|
|
return;
|
|
}
|
|
|
|
my ($file)="$config{srcdir}/$autofile" =~ /$config{wiki_file_regexp}/; # untaint
|
|
if (! defined $file) {
|
|
return;
|
|
}
|
|
|
|
# Remember autofiles that were tried, and never try them again later.
|
|
if (exists $wikistate{$autofiles{$autofile}{plugin}}{autofile}{$autofile}) {
|
|
return;
|
|
}
|
|
$wikistate{$autofiles{$autofile}{plugin}}{autofile}{$autofile}=1;
|
|
|
|
if (srcfile($autofile, 1) || file_pruned($autofile)) {
|
|
return;
|
|
}
|
|
|
|
if (-l $file || -d _ || -e _) {
|
|
return;
|
|
}
|
|
|
|
my $page = pagename($file);
|
|
if ($pages->{$page}) {
|
|
return;
|
|
}
|
|
|
|
if (grep { $_ eq $autofile } @$del) {
|
|
return;
|
|
}
|
|
|
|
$autofiles{$autofile}{generator}->();
|
|
$pages->{$page}=1;
|
|
return 1;
|
|
}
|
|
|
|
|
|
sub refresh () {
|
|
srcdir_check();
|
|
run_hooks(refresh => sub { shift->() });
|
|
my ($files, $pages)=find_src_files();
|
|
my ($new, $internal_new)=find_new_files($files);
|
|
my ($del, $internal_del)=find_del_files($pages);
|
|
my ($changed, $internal_changed)=find_changed($files);
|
|
run_hooks(needsbuild => sub { shift->($changed) });
|
|
my $oldlink_targets=calculate_old_links($changed, $del);
|
|
|
|
foreach my $file (@$changed) {
|
|
scan($file);
|
|
}
|
|
|
|
foreach my $autofile (keys %autofiles) {
|
|
if (gen_autofile($autofile, $pages, $del)) {
|
|
push @{$files}, $autofile;
|
|
push @{$new}, $autofile if find_new_files([$autofile]);
|
|
push @{$changed}, $autofile if find_changed([$autofile]);
|
|
|
|
scan($autofile);
|
|
}
|
|
}
|
|
|
|
calculate_links();
|
|
|
|
remove_del(@$del, @$internal_del);
|
|
|
|
foreach my $file (@$changed) {
|
|
render($file, sprintf(gettext("building %s"), $file));
|
|
}
|
|
foreach my $file (@$internal_new, @$internal_del, @$internal_changed) {
|
|
derender_internal($file);
|
|
}
|
|
|
|
my ($backlinkchanged, $linkchangers)=calculate_changed_links($changed,
|
|
$del, $oldlink_targets);
|
|
|
|
foreach my $file (@$new, @$del) {
|
|
render_linkers($file);
|
|
}
|
|
|
|
if (@$changed || @$internal_changed ||
|
|
@$del || @$internal_del || @$internal_new) {
|
|
1 while render_dependent($files, $new, $internal_new,
|
|
$del, $internal_del, $internal_changed,
|
|
$linkchangers);
|
|
}
|
|
|
|
render_backlinks($backlinkchanged);
|
|
remove_unrendered();
|
|
|
|
if (@$del) {
|
|
run_hooks(delete => sub { shift->(@$del) });
|
|
}
|
|
if (%rendered) {
|
|
run_hooks(change => sub { shift->(keys %rendered) });
|
|
}
|
|
}
|
|
|
|
sub clean_rendered {
|
|
lockwiki();
|
|
loadindex();
|
|
remove_unrendered();
|
|
foreach my $page (keys %oldrenderedfiles) {
|
|
foreach my $file (@{$oldrenderedfiles{$page}}) {
|
|
prune($config{destdir}."/".$file);
|
|
}
|
|
}
|
|
}
|
|
|
|
sub commandline_render () {
|
|
lockwiki();
|
|
loadindex();
|
|
unlockwiki();
|
|
|
|
my $srcfile=possibly_foolish_untaint($config{render});
|
|
my $file=$srcfile;
|
|
$file=~s/\Q$config{srcdir}\E\/?//;
|
|
|
|
my $type=pagetype($file);
|
|
die sprintf(gettext("ikiwiki: cannot build %s"), $srcfile)."\n" unless defined $type;
|
|
my $content=readfile($srcfile);
|
|
my $page=pagename($file);
|
|
$pagesources{$page}=$file;
|
|
$content=filter($page, $page, $content);
|
|
$content=preprocess($page, $page, $content);
|
|
$content=linkify($page, $page, $content);
|
|
$content=htmlize($page, $page, $type, $content);
|
|
$pagemtime{$page}=(stat($srcfile))[9];
|
|
$pagectime{$page}=$pagemtime{$page} if ! exists $pagectime{$page};
|
|
|
|
print genpage($page, $content);
|
|
exit 0;
|
|
}
|
|
|
|
1
|