]> git.vanrenterghem.biz Git - git.ikiwiki.info.git/blobdiff - IkiWiki/Render.pm
Merge branch 'master' into tova
[git.ikiwiki.info.git] / IkiWiki / Render.pm
index 35e279a68232c7b0a6e6fb353d3af448cd35df94..90058199c128ebd68f7fa41c2e0f4d71c36e6d32 100644 (file)
@@ -4,268 +4,233 @@ package IkiWiki;
 
 use warnings;
 use strict;
-use File::Spec;
 use IkiWiki;
-
-sub linkify ($$) { #{{{
-       my $content=shift;
-       my $page=shift;
-
-       $content =~ s{(\\?)$config{wiki_link_regexp}}{
-               $2 ? ( $1 ? "[[$2|$3]]" : htmllink($page, titlepage($3), 0, 0, pagetitle($2)))
-                  : ( $1 ? "[[$3]]" :    htmllink($page, titlepage($3)))
-       }eg;
-       
-       return $content;
-} #}}}
-
-my $_scrubber;
-sub scrubber { #{{{
-       return $_scrubber if defined $_scrubber;
-       
-       eval q{use HTML::Scrubber};
-       # Lists based on http://feedparser.org/docs/html-sanitization.html
-       $_scrubber = HTML::Scrubber->new(
-               allow => [qw{
-                       a abbr acronym address area b big blockquote br
-                       button caption center cite code col colgroup dd del
-                       dfn dir div dl dt em fieldset font form h1 h2 h3 h4
-                       h5 h6 hr i img input ins kbd label legend li map
-                       menu ol optgroup option p pre q s samp select small
-                       span strike strong sub sup table tbody td textarea
-                       tfoot th thead tr tt u ul var
-               }],
-               default => [undef, { map { $_ => 1 } qw{
-                       abbr accept accept-charset accesskey action
-                       align alt axis border cellpadding cellspacing
-                       char charoff charset checked cite class
-                       clear cols colspan color compact coords
-                       datetime dir disabled enctype for frame
-                       headers height href hreflang hspace id ismap
-                       label lang longdesc maxlength media method
-                       multiple name nohref noshade nowrap prompt
-                       readonly rel rev rows rowspan rules scope
-                       selected shape size span src start summary
-                       tabindex target title type usemap valign
-                       value vspace width
-               }}],
-       );
-       return $_scrubber;
-} # }}}
-
-sub htmlize ($$) { #{{{
-       my $type=shift;
-       my $content=shift;
-       
-       if (! $INC{"/usr/bin/markdown"}) {
-               no warnings 'once';
-               $blosxom::version="is a proper perl module too much to ask?";
-               use warnings 'all';
-               do "/usr/bin/markdown";
-       }
-       
-       if ($type eq '.mdwn') {
-               $content=Markdown::Markdown($content);
-       }
-       else {
-               error("htmlization of $type not supported");
-       }
-
-       if ($config{sanitize}) {
-               $content=scrubber()->scrub($content);
+use Encode;
+
+my %backlinks;
+my $backlinks_calculated=0;
+
+sub calculate_backlinks () { #{{{
+       return if $backlinks_calculated;
+       %backlinks=();
+       foreach my $page (keys %links) {
+               foreach my $link (@{$links{$page}}) {
+                       my $bestlink=bestlink($page, $link);
+                       if (length $bestlink && $bestlink ne $page) {
+                               $backlinks{$bestlink}{$page}=1;
+                       }
+               }
        }
-       
-       return $content;
+       $backlinks_calculated=1;
 } #}}}
 
 sub backlinks ($) { #{{{
        my $page=shift;
 
-       my @links;
-       foreach my $p (keys %links) {
-               next if bestlink($page, $p) eq $page;
-               if (grep { length $_ && bestlink($p, $_) eq $page } @{$links{$p}}) {
-                       my $href=File::Spec->abs2rel(htmlpage($p), dirname($page));
-                       
-                       # Trim common dir prefixes from both pages.
-                       my $p_trimmed=$p;
-                       my $page_trimmed=$page;
-                       my $dir;
-                       1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
-                               defined $dir &&
-                               $p_trimmed=~s/^\Q$dir\E// &&
-                               $page_trimmed=~s/^\Q$dir\E//;
-                                      
-                       push @links, { url => $href, page => $p_trimmed };
-               }
-       }
-
-       return sort { $a->{page} cmp $b->{page} } @links;
-} #}}}
+       calculate_backlinks();
 
-sub parentlinks ($) { #{{{
-       my $page=shift;
-       
-       my @ret;
-       my $pagelink="";
-       my $path="";
-       my $skip=1;
-       foreach my $dir (reverse split("/", $page)) {
-               if (! $skip) {
-                       $path.="../";
-                       unshift @ret, { url => "$path$dir.html", page => $dir };
-               }
-               else {
-                       $skip=0;
-               }
+       my @links;
+       foreach my $p (keys %{$backlinks{$page}}) {
+               my $href=urlto($p, $page);
+                
+               # Trim common dir prefixes from both pages.
+               my $p_trimmed=$p;
+               my $page_trimmed=$page;
+               my $dir;
+               1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
+                       defined $dir &&
+                       $p_trimmed=~s/^\Q$dir\E// &&
+                       $page_trimmed=~s/^\Q$dir\E//;
+                              
+               push @links, { url => $href, page => pagetitle($p_trimmed) };
        }
-       unshift @ret, { url => length $path ? $path : ".", page => $config{wikiname} };
-       return @ret;
+       return @links;
 } #}}}
 
-sub preprocess ($$) { #{{{
+sub genpage ($$) { #{{{
        my $page=shift;
        my $content=shift;
 
-       my $handle=sub {
-               my $escape=shift;
-               my $command=shift;
-               my $params=shift;
-               if (length $escape) {
-                       return "[[$command $params]]";
-               }
-               elsif (exists $plugins{preprocess}{$command}) {
-                       my %params;
-                       while ($params =~ /(\w+)=\"([^"]+)"(\s+|$)/g) {
-                               $params{$1}=$2;
-                       }
-                       return $plugins{preprocess}{$command}->(page => $page, %params);
-               }
-               else {
-                       return "[[$command not processed]]";
+       my $templatefile;
+       run_hooks(templatefile => sub {
+               return if defined $templatefile;
+               my $file=shift->(page => $page);
+               if (defined $file && defined template_file($file)) {
+                       $templatefile=$file;
                }
-       };
-       
-       $content =~ s{(\\?)$config{wiki_processor_regexp}}{$handle->($1, $2, $3)}eg;
-       return $content;
-} #}}}
-
-sub add_depends ($$) { #{{{
-       my $page=shift;
-       my $globlist=shift;
-       
-       if (! exists $depends{$page}) {
-               $depends{$page}=$globlist;
-       }
-       else {
-               $depends{$page}.=" ".$globlist;
-       }
-} # }}}
-
-sub genpage ($$$) { #{{{
-       my $content=shift;
-       my $page=shift;
-       my $mtime=shift;
+       });
+       my $template=template(defined $templatefile ? $templatefile : 'page.tmpl', blind_cache => 1);
+       my $actions=0;
 
-       my $title=pagetitle(basename($page));
-       
-       my $template=HTML::Template->new(blind_cache => 1,
-               filename => "$config{templatedir}/page.tmpl");
-       
        if (length $config{cgiurl}) {
                $template->param(editurl => cgiurl(do => "edit", page => $page));
                $template->param(prefsurl => cgiurl(do => "prefs"));
-               if ($config{rcs}) {
-                       $template->param(recentchangesurl => cgiurl(do => "recentchanges"));
-               }
+               $actions++;
        }
-
+               
        if (length $config{historyurl}) {
                my $u=$config{historyurl};
                $u=~s/\[\[file\]\]/$pagesources{$page}/g;
                $template->param(historyurl => $u);
+               $actions++;
        }
-       if ($config{hyperestraier}) {
-               $template->param(hyperestraierurl => cgiurl());
+       if ($config{discussion}) {
+               my $discussionlink=gettext("discussion");
+               if ($page !~ /.*\/\Q$discussionlink\E$/ &&
+                  (length $config{cgiurl} ||
+                   exists $links{$page."/".$discussionlink})) {
+                       $template->param(discussionlink => htmllink($page, $page, gettext("Discussion"), noimageinline => 1, forcesubpage => 1));
+                       $actions++;
+               }
+       }
+
+       if ($actions) {
+               $template->param(have_actions => 1);
+       }
+
+       my @backlinks=sort { $a->{page} cmp $b->{page} } backlinks($page);
+       my ($backlinks, $more_backlinks);
+       if (@backlinks <= $config{numbacklinks} || ! $config{numbacklinks}) {
+               $backlinks=\@backlinks;
+               $more_backlinks=[];
+       }
+       else {
+               $backlinks=[@backlinks[0..$config{numbacklinks}-1]];
+               $more_backlinks=[@backlinks[$config{numbacklinks}..$#backlinks]];
        }
 
        $template->param(
-               title => $title,
+               title => $page eq 'index' 
+                       ? $config{wikiname} 
+                       : pagetitle(basename($page)),
                wikiname => $config{wikiname},
-               parentlinks => [parentlinks($page)],
                content => $content,
-               backlinks => [backlinks($page)],
-               discussionlink => htmllink($page, "Discussion", 1, 1),
-               mtime => scalar(gmtime($mtime)),
-               styleurl => styleurl($page),
+               backlinks => $backlinks,
+               more_backlinks => $more_backlinks,
+               mtime => displaytime($pagemtime{$page}),
+               ctime => displaytime($pagectime{$page}),
+               baseurl => baseurl($page),
        );
-       
-       return $template->output;
-} #}}}
 
-sub check_overwrite ($$) { #{{{
-       # Important security check. Make sure to call this before saving
-       # any files to the source directory.
-       my $dest=shift;
-       my $src=shift;
+       run_hooks(pagetemplate => sub {
+               shift->(page => $page, destpage => $page, template => $template);
+       });
        
-       if (! exists $renderedfiles{$src} && -e $dest && ! $config{rebuild}) {
-               error("$dest already exists and was rendered from ".
-                       join(" ",(grep { $renderedfiles{$_} eq $dest } keys
-                               %renderedfiles)).
-                       ", before, so not rendering from $src");
-       }
+       $content=$template->output;
+       
+       run_hooks(postscan => sub {
+               shift->(page => $page, content => $content);
+       });
+
+       run_hooks(format => sub {
+               $content=shift->(
+                       page => $page,
+                       content => $content,
+               );
+       });
+
+       return $content;
 } #}}}
 
-sub mtime ($) { #{{{
+sub scan ($) { #{{{
        my $file=shift;
-       
-       return (stat($file))[9];
-} #}}}
 
-sub findlinks ($$) { #{{{
-       my $content=shift;
-       my $page=shift;
+       my $type=pagetype($file);
+       if (defined $type) {
+               my $srcfile=srcfile($file);
+               my $content=readfile($srcfile);
+               my $page=pagename($file);
+               will_render($page, htmlpage($page), 1);
 
-       my @links;
-       while ($content =~ /(?<!\\)$config{wiki_link_regexp}/g) {
-               push @links, titlepage($2);
+               if ($config{discussion}) {
+                       # Discussion links are a special case since they're
+                       # not in the text of the page, but on its template.
+                       $links{$page}=[ $page."/".gettext("discussion") ];
+               }
+               else {
+                       $links{$page}=[];
+               }
+
+               run_hooks(scan => sub {
+                       shift->(
+                               page => $page,
+                               content => $content,
+                       );
+               });
+
+               # Preprocess in scan-only mode.
+               preprocess($page, $page, $content, 1);
+       }
+       else {
+               will_render($file, $file, 1);
        }
-       # Discussion links are a special case since they're not in the text
-       # of the page, but on its template.
-       return @links, "$page/discussion";
 } #}}}
 
+sub fast_file_copy (@) { #{{{
+       my $srcfile=shift;
+       my $destfile=shift;
+       my $srcfd=shift;
+       my $destfd=shift;
+       my $cleanup=shift;
+
+       my $blksize = 16384;
+       my ($len, $buf, $written);
+       while ($len = sysread $srcfd, $buf, $blksize) {
+               if (! defined $len) {
+                       next if $! =~ /^Interrupted/;
+                       error("failed to read $srcfile: $!", $cleanup);
+               }
+               my $offset = 0;
+               while ($len) {
+                       defined($written = syswrite $destfd, $buf, $len, $offset)
+                               or error("failed to write $destfile: $!", $cleanup);
+                       $len -= $written;
+                       $offset += $written;
+               }
+       }
+}
+
 sub render ($) { #{{{
        my $file=shift;
        
        my $type=pagetype($file);
        my $srcfile=srcfile($file);
-       if ($type ne 'unknown') {
-               my $content=readfile($srcfile);
+       if (defined $type) {
                my $page=pagename($file);
-               
-               $links{$page}=[findlinks($content, $page)];
                delete $depends{$page};
+               will_render($page, htmlpage($page), 1);
+               return if $type=~/^_/;
                
-               $content=linkify($content, $page);
-               $content=preprocess($page, $content);
-               $content=htmlize($type, $content);
+               my $content=htmlize($page, $page, $type,
+                       linkify($page, $page,
+                       preprocess($page, $page,
+                       filter($page, $page,
+                       readfile($srcfile)))));
                
-               check_overwrite("$config{destdir}/".htmlpage($page), $page);
-               writefile(htmlpage($page), $config{destdir},
-                       genpage($content, $page, mtime($srcfile)));
-               $oldpagemtime{$page}=time;
-               $renderedfiles{$page}=htmlpage($page);
+               my $output=htmlpage($page);
+               writefile($output, $config{destdir}, genpage($page, $content));
        }
        else {
-               my $content=readfile($srcfile, 1);
-               $links{$file}=[];
                delete $depends{$file};
-               check_overwrite("$config{destdir}/$file", $file);
-               writefile($file, $config{destdir}, $content, 1);
-               $oldpagemtime{$file}=time;
-               $renderedfiles{$file}=$file;
+               will_render($file, $file, 1);
+               
+               if ($config{hardlink}) {
+                       # only hardlink if owned by same user
+                       my @stat=stat($srcfile);
+                       if ($stat[4] == $>) {
+                               prep_writefile($file, $config{destdir});
+                               unlink($config{destdir}."/".$file);
+                               if (link($srcfile, $config{destdir}."/".$file)) {
+                                       return;
+                               }
+                       }
+                       # if hardlink fails, fall back to copying
+               }
+               
+               my $srcfd=readfile($srcfile, 1, 1);
+               writefile($file, $config{destdir}, undef, 1, sub {
+                       fast_file_copy($srcfile, $file, $srcfd, @_);
+               });
        }
 } #}}}
 
@@ -279,72 +244,36 @@ sub prune ($) { #{{{
        }
 } #}}}
 
-sub estcfg () { #{{{
-       my $estdir="$config{wikistatedir}/hyperestraier";
-       my $cgi=basename($config{cgiurl});
-       $cgi=~s/\..*$//;
-       open(TEMPLATE, ">$estdir/$cgi.tmpl") ||
-               error("write $estdir/$cgi.tmpl: $!");
-       print TEMPLATE misctemplate("search", 
-               "<!--ESTFORM-->\n\n<!--ESTRESULT-->\n\n<!--ESTINFO-->\n\n");
-       close TEMPLATE;
-       open(TEMPLATE, ">$estdir/$cgi.conf") ||
-               error("write $estdir/$cgi.conf: $!");
-       my $template=HTML::Template->new(
-               filename => "$config{templatedir}/estseek.conf"
-       );
-       eval q{use Cwd 'abs_path'};
-       $template->param(
-               index => $estdir,
-               tmplfile => "$estdir/$cgi.tmpl",
-               destdir => abs_path($config{destdir}),
-               url => $config{url},
-       );
-       print TEMPLATE $template->output;
-       close TEMPLATE;
-       $cgi="$estdir/".basename($config{cgiurl});
-       unlink($cgi);
-       symlink("/usr/lib/estraier/estseek.cgi", $cgi) ||
-               error("symlink $cgi: $!");
-} # }}}
-
-sub estcmd ($;@) { #{{{
-       my @params=split(' ', shift);
-       push @params, "-cl", "$config{wikistatedir}/hyperestraier";
-       if (@_) {
-               push @params, "-";
-       }
-       
-       my $pid=open(CHILD, "|-");
-       if ($pid) {
-               # parent
-               foreach (@_) {
-                       print CHILD "$_\n";
+sub refresh () { #{{{
+       # security check, avoid following symlinks in the srcdir path by default
+       my $test=$config{srcdir};
+       while (length $test) {
+               if (-l $test && ! $config{allow_symlinks_before_srcdir}) {
+                       error("symlink found in srcdir path ($test) -- set allow_symlinks_before_srcdir to allow this");
+               }
+               unless ($test=~s/\/+$//) {
+                       $test=dirname($test);
                }
-               close(CHILD) || error("estcmd @params exited nonzero: $?");
-       }
-       else {
-               # child
-               open(STDOUT, "/dev/null"); # shut it up (closing won't work)
-               exec("estcmd", @params) || error("can't run estcmd");
        }
-} #}}}
+       
+       run_hooks(refresh => sub { shift->() });
 
-sub refresh () { #{{{
        # find existing pages
        my %exists;
        my @files;
        eval q{use File::Find};
+       error($@) if $@;
        find({
                no_chdir => 1,
                wanted => sub {
-                       if (/$config{wiki_file_prune_regexp}/) {
+                       $_=decode_utf8($_);
+                       if (file_pruned($_, $config{srcdir})) {
                                $File::Find::prune=1;
                        }
-                       elsif (! -d $_ && ! -l $_) {
+                       elsif (! -l $_ && ! -d _) {
                                my ($f)=/$config{wiki_file_regexp}/; # untaint
                                if (! defined $f) {
-                                       warn("skipping bad filename $_\n");
+                                       warn(sprintf(gettext("skipping bad filename %s"), $_)."\n");
                                }
                                else {
                                        $f=~s/^\Q$config{srcdir}\E\/?//;
@@ -354,106 +283,163 @@ sub refresh () { #{{{
                        }
                },
        }, $config{srcdir});
-       find({
-               no_chdir => 1,
-               wanted => sub {
-                       if (/$config{wiki_file_prune_regexp}/) {
-                               $File::Find::prune=1;
-                       }
-                       elsif (! -d $_ && ! -l $_) {
-                               my ($f)=/$config{wiki_file_regexp}/; # untaint
-                               if (! defined $f) {
-                                       warn("skipping bad filename $_\n");
+       foreach my $dir (@{$config{underlaydirs}}, $config{underlaydir}) {
+               find({
+                       no_chdir => 1,
+                       wanted => sub {
+                               $_=decode_utf8($_);
+                               if (file_pruned($_, $dir)) {
+                                       $File::Find::prune=1;
                                }
-                               else {
-                                       # Don't add files that are in the
-                                       # srcdir.
-                                       $f=~s/^\Q$config{underlaydir}\E\/?//;
-                                       if (! -e "$config{srcdir}/$f" && 
-                                           ! -l "$config{srcdir}/$f") {
-                                               push @files, $f;
-                                               $exists{pagename($f)}=1;
+                               elsif (! -l $_ && ! -d _) {
+                                       my ($f)=/$config{wiki_file_regexp}/; # untaint
+                                       if (! defined $f) {
+                                               warn(sprintf(gettext("skipping bad filename %s"), $_)."\n");
+                                       }
+                                       else {
+                                               $f=~s/^\Q$dir\E\/?//;
+                                               # avoid underlaydir
+                                               # override attacks; see
+                                               # security.mdwn
+                                               if (! -l "$config{srcdir}/$f" && 
+                                                   ! -e _) {
+                                                       my $page=pagename($f);
+                                                       if (! $exists{$page}) {
+                                                               push @files, $f;
+                                                               $exists{$page}=1;
+                                                       }
+                                               }
                                        }
                                }
-                       }
-               },
-       }, $config{underlaydir});
-
-       my %rendered;
+                       },
+               }, $dir);
+       };
 
+       my (%rendered, @add, @del, @internal);
        # check for added or removed pages
-       my @add;
        foreach my $file (@files) {
                my $page=pagename($file);
-               if (! $oldpagemtime{$page}) {
-                       debug("new page $page") unless exists $pagectime{$page};
-                       push @add, $file;
-                       $links{$page}=[];
-                       $pagesources{$page}=$file;
-                       $pagectime{$page}=mtime(srcfile($file))
-                               unless exists $pagectime{$page};
+               if (exists $pagesources{$page} && $pagesources{$page} ne $file) {
+                       # the page has changed its type
+                       $forcerebuild{$page}=1;
+               }
+               $pagesources{$page}=$file;
+               if (! $pagemtime{$page}) {
+                       if (isinternal($page)) {
+                               push @internal, $file;
+                       }
+                       else {
+                               push @add, $file;
+                               if ($config{getctime} && -e "$config{srcdir}/$file") {
+                                       eval {
+                                               my $time=rcs_getctime("$config{srcdir}/$file");
+                                               $pagectime{$page}=$time;
+                                       };
+                                       if ($@) {
+                                               print STDERR $@;
+                                       }
+                               }
+                       }
+                       $pagecase{lc $page}=$page;
+                       if (! exists $pagectime{$page}) {
+                               $pagectime{$page}=(srcfile_stat($file))[10];
+                       }
                }
        }
-       my @del;
-       foreach my $page (keys %oldpagemtime) {
+       foreach my $page (keys %pagemtime) {
                if (! $exists{$page}) {
-                       debug("removing old page $page");
-                       push @del, $pagesources{$page};
-                       prune($config{destdir}."/".$renderedfiles{$page});
-                       delete $renderedfiles{$page};
-                       $oldpagemtime{$page}=0;
+                       if (isinternal($page)) {
+                               push @internal, $pagesources{$page};
+                       }
+                       else {
+                               debug(sprintf(gettext("removing old page %s"), $page));
+                               push @del, $pagesources{$page};
+                       }
+                       $links{$page}=[];
+                       $renderedfiles{$page}=[];
+                       $pagemtime{$page}=0;
+                       prune($config{destdir}."/".$_)
+                               foreach @{$oldrenderedfiles{$page}};
                        delete $pagesources{$page};
+                       foreach (keys %destsources) {
+                               if ($destsources{$_} eq $page) {
+                                       delete $destsources{$_};
+                               }
+                       }
                }
        }
-       
-       # render any updated files
+
+       # find changed and new files
+       my @needsbuild;
        foreach my $file (@files) {
                my $page=pagename($file);
-               
-               if (! exists $oldpagemtime{$page} ||
-                   mtime(srcfile($file)) > $oldpagemtime{$page}) {
-                       debug("rendering changed file $file");
-                       render($file);
-                       $rendered{$file}=1;
+               my ($srcfile, @stat)=srcfile_stat($file);
+               if (! exists $pagemtime{$page} ||
+                   $stat[9] > $pagemtime{$page} ||
+                   $forcerebuild{$page}) {
+                       $pagemtime{$page}=$stat[9];
+                       if (isinternal($page)) {
+                               push @internal, $file;
+                               # Preprocess internal page in scan-only mode.
+                               preprocess($page, $page, readfile($srcfile), 1);
+                       }
+                       else {
+                               push @needsbuild, $file;
+                       }
                }
        }
+       run_hooks(needsbuild => sub { shift->(\@needsbuild) });
+
+       # scan and render files
+       foreach my $file (@needsbuild) {
+               debug(sprintf(gettext("scanning %s"), $file));
+               scan($file);
+       }
+       calculate_backlinks();
+       foreach my $file (@needsbuild) {
+               debug(sprintf(gettext("rendering %s"), $file));
+               render($file);
+               $rendered{$file}=1;
+       }
+       foreach my $file (@internal) {
+               # internal pages are not rendered
+               my $page=pagename($file);
+               delete $depends{$page};
+               foreach my $old (@{$renderedfiles{$page}}) {
+                       delete $destsources{$old};
+               }
+               $renderedfiles{$page}=[];
+       }
        
-       # if any files were added or removed, check to see if each page
-       # needs an update due to linking to them or inlining them.
-       # TODO: inefficient; pages may get rendered above and again here;
-       # problem is the bestlink may have changed and we won't know until
-       # now
+       # rebuild pages that link to added or removed pages
        if (@add || @del) {
-FILE:          foreach my $file (@files) {
-                       my $page=pagename($file);
-                       foreach my $f (@add, @del) {
-                               my $p=pagename($f);
-                               foreach my $link (@{$links{$page}}) {
-                                       if (bestlink($page, $link) eq $p) {
-                                               debug("rendering $file, which links to $p");
-                                               render($file);
-                                               $rendered{$file}=1;
-                                               next FILE;
-                                       }
-                               }
+               foreach my $f (@add, @del) {
+                       my $p=pagename($f);
+                       foreach my $page (keys %{$backlinks{$p}}) {
+                               my $file=$pagesources{$page};
+                               next if $rendered{$file};
+                               debug(sprintf(gettext("rendering %s, which links to %s"), $file, $p));
+                               render($file);
+                               $rendered{$file}=1;
                        }
                }
        }
 
-       # Handle backlinks; if a page has added/removed links, update the
-       # pages it links to. Also handles rebuilding dependat pages.
-       # TODO: inefficient; pages may get rendered above and again here;
-       # problem is the backlinks could be wrong in the first pass render
-       # above
-       if (%rendered || @del) {
+       if (%rendered || @del || @internal) {
+               my @changed=(keys %rendered, @del);
+
+               # rebuild dependant pages
                foreach my $f (@files) {
+                       next if $rendered{$f};
                        my $p=pagename($f);
                        if (exists $depends{$p}) {
-                               foreach my $file (keys %rendered, @del) {
+                               # only consider internal files
+                               # if the page explicitly depends on such files
+                               foreach my $file (@changed, $depends{$p}=~/internal\(/ ? @internal : ()) {
                                        next if $f eq $file;
                                        my $page=pagename($file);
-                                       if (globlist_match($page, $depends{$p})) {
-                                               debug("rendering $f, which depends on $page");
+                                       if (pagespec_match($page, $depends{$p}, location => $p)) {
+                                               debug(sprintf(gettext("rendering %s, which depends on %s"), $f, $page));
                                                render($f);
                                                $rendered{$f}=1;
                                                last;
@@ -462,8 +448,10 @@ FILE:              foreach my $file (@files) {
                        }
                }
                
+               # handle backlinks; if a page has added/removed links,
+               # update the pages it links to
                my %linkchanged;
-               foreach my $file (keys %rendered, @del) {
+               foreach my $file (@changed) {
                        my $page=pagename($file);
                        
                        if (exists $links{$page}) {
@@ -485,30 +473,59 @@ FILE:             foreach my $file (@files) {
                                }
                        }
                }
+
                foreach my $link (keys %linkchanged) {
                        my $linkfile=$pagesources{$link};
                        if (defined $linkfile) {
-                               debug("rendering $linkfile, to update its backlinks");
+                               next if $rendered{$linkfile};
+                               debug(sprintf(gettext("rendering %s, to update its backlinks"), $linkfile));
                                render($linkfile);
                                $rendered{$linkfile}=1;
                        }
                }
        }
 
-       if ($config{hyperestraier} && (%rendered || @del)) {
-               debug("updating hyperestraier search index");
-               if (%rendered) {
-                       estcmd("gather -cm -bc -cl -sd", 
-                               map { $config{destdir}."/".$renderedfiles{pagename($_)} }
-                               keys %rendered);
-               }
-               if (@del) {
-                       estcmd("purge -cl");
+       # remove no longer rendered files
+       foreach my $src (keys %rendered) {
+               my $page=pagename($src);
+               foreach my $file (@{$oldrenderedfiles{$page}}) {
+                       if (! grep { $_ eq $file } @{$renderedfiles{$page}}) {
+                               debug(sprintf(gettext("removing %s, no longer rendered by %s"), $file, $page));
+                               prune($config{destdir}."/".$file);
+                       }
                }
-               
-               debug("generating hyperestraier cgi config");
-               estcfg();
        }
+
+       if (@del) {
+               run_hooks(delete => sub { shift->(@del) });
+       }
+       if (%rendered) {
+               run_hooks(change => sub { shift->(keys %rendered) });
+       }
+} #}}}
+
+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 render %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($srcfile))[9];
+
+       print genpage($page, $content);
+       exit 0;
 } #}}}
 
 1