preserve ctimes across rebuilds

[git.ikiwiki.info.git] / ikiwiki

diff --git a/ikiwiki b/ikiwiki
index 9aaeed86ca64ae51ae535ab0928c563c3e28eaa1..87414ab5b8e03ea479d34f2830f60e94b2c376b4 100755 (executable)
--- a/ikiwiki
+++ b/ikiwiki
@@ -1,74 +1,151 @@
 #!/usr/bin/perl -T
 #!/usr/bin/perl -T

+$ENV{PATH}="/usr/local/bin:/usr/bin:/bin";

 
 

+package IkiWiki;

 use warnings;
 use strict;
 use warnings;
 use strict;

-use File::Find;
-use Memoize;

 use File::Spec;
 use File::Spec;

+use HTML::Template;
+use lib '.'; # For use without installation, removed by Makefile.

 
 

-BEGIN {
-       $blosxom::version="is a proper perl module too much to ask?";
-       do "/usr/bin/markdown";
-}
+use vars qw{%config %links %oldlinks %oldpagemtime %pagectime
+            %renderedfiles %pagesources};

 
 

-memoize('pagename');
-memoize('bestlink');
-
-sub usage {
+sub usage () { #{{{

        die "usage: ikiwiki [options] source dest\n";
        die "usage: ikiwiki [options] source dest\n";

-}
-
-my $link=qr/\[\[([^\s]+)\]\]/;
-my $verbose=0;
-my $rebuild=0;
-my $wikiname="wiki";
-if (grep /^-/, @ARGV) {
-       eval {use Getopt::Long};
-       GetOptions(
-               "wikiname=s" => \$wikiname,
-               "verbose|v" => \$verbose,
-               "rebuild" => \$rebuild,
-       ) || usage();
-}
-usage() unless @ARGV == 2;
-my ($srcdir) = shift =~ /(.*)/; # untaint
-my ($destdir) = shift =~ /(.*)/; # untaint
-
-my %links;
-my %oldlinks;
-my %oldpagemtime;
-my %renderedfiles;
-my %pagesources;
-
-sub error ($) {
-       die @_;
-}
-
-sub debug ($) {
-       print "@_\n" if $verbose;
-}
+} #}}}
+
+sub getconfig () { #{{{
+       if (! exists $ENV{WRAPPED_OPTIONS}) {
+               %config=(
+                       wiki_file_prune_regexp => qr{((^|/).svn/|\.\.|^\.|\/\.|\.html?$)},
+                       wiki_link_regexp => qr/\[\[([^\s\]]+)\]\]/,
+                       wiki_file_regexp => qr/(^[-A-Za-z0-9_.\&;:\/+]+$)/,
+                       verbose => 0,
+                       wikiname => "wiki",
+                       default_pageext => ".mdwn",
+                       cgi => 0,
+                       svn => 1,
+                       url => '',
+                       cgiurl => '',
+                       historyurl => '',
+                       diffurl => '',
+                       anonok => 0,
+                       rss => 0,
+                       rebuild => 0,
+                       wrapper => undef,
+                       wrappermode => undef,
+                       srcdir => undef,
+                       destdir => undef,
+                       templatedir => "/usr/share/ikiwiki/templates",
+                       setup => undef,
+                       adminuser => undef,
+               );
+
+               eval q{use Getopt::Long};
+               GetOptions(
+                       "setup|s=s" => \$config{setup},
+                       "wikiname=s" => \$config{wikiname},
+                       "verbose|v!" => \$config{verbose},
+                       "rebuild!" => \$config{rebuild},
+                       "wrappermode=i" => \$config{wrappermode},
+                       "svn!" => \$config{svn},
+                       "anonok!" => \$config{anonok},
+                       "rss!" => \$config{rss},
+                       "cgi!" => \$config{cgi},
+                       "url=s" => \$config{url},
+                       "cgiurl=s" => \$config{cgiurl},
+                       "historyurl=s" => \$config{historyurl},
+                       "diffurl=s" => \$config{diffurl},
+                       "exclude=s@" => sub {
+                               $config{wiki_file_prune_regexp}=qr/$config{wiki_file_prune_regexp}|$_[1]/;
+                       },
+                       "adminuser=s@" => sub {
+                               push @{$config{adminuser}}, $_[1]
+                       },
+                       "templatedir=s" => sub {
+                               $config{templatedir}=possibly_foolish_untaint($_[1])
+                       },
+                       "wrapper:s" => sub {
+                               $config{wrapper}=$_[1] ? $_[1] : "ikiwiki-wrap"
+                       },
+               ) || usage();
+
+               if (! $config{setup}) {
+                       usage() unless @ARGV == 2;
+                       $config{srcdir} = possibly_foolish_untaint(shift @ARGV);
+                       $config{destdir} = possibly_foolish_untaint(shift @ARGV);
+                       checkconfig();
+               }
+       }
+       else {
+               # wrapper passes a full config structure in the environment
+               # variable
+               eval possibly_foolish_untaint($ENV{WRAPPED_OPTIONS});
+               checkconfig();
+       }
+} #}}}

 
 

-sub mtime ($) {
-       my $page=shift;
+sub checkconfig () { #{{{
+       if ($config{cgi} && ! length $config{url}) {
+               error("Must specify url to wiki with --url when using --cgi\n");
+       }
+       if ($config{rss} && ! length $config{url}) {
+               error("Must specify url to wiki with --url when using --rss\n");
+       }

        
        

-       return (stat($page))[9];
-}
+       $config{wikistatedir}="$config{srcdir}/.ikiwiki"
+               unless exists $config{wikistatedir};
+       
+       if ($config{svn}) {
+               require IkiWiki::Rcs::SVN;
+               $config{rcs}=1;
+       }
+       else {
+               require IkiWiki::Rcs::Stub;
+               $config{rcs}=0;
+       }
+} #}}}

 
 

-sub basename {
+sub error ($) { #{{{
+       if ($config{cgi}) {
+               print "Content-type: text/html\n\n";
+               print misctemplate("Error", "<p>Error: @_</p>");
+       }
+       die @_;
+} #}}}
+
+sub possibly_foolish_untaint ($) { #{{{
+       my $tainted=shift;
+       my ($untainted)=$tainted=~/(.*)/;
+       return $untainted;
+} #}}}
+
+sub debug ($) { #{{{
+       return unless $config{verbose};
+       if (! $config{cgi}) {
+               print "@_\n";
+       }
+       else {
+               print STDERR "@_\n";
+       }
+} #}}}
+
+sub basename ($) { #{{{

        my $file=shift;
 
        $file=~s!.*/!!;
        return $file;
        my $file=shift;
 
        $file=~s!.*/!!;
        return $file;

-}
+} #}}}

 
 

-sub dirname {
+sub dirname ($) { #{{{

        my $file=shift;
 
        $file=~s!/?[^/]+$!!;
        return $file;
        my $file=shift;
 
        $file=~s!/?[^/]+$!!;
        return $file;

-}
+} #}}}

 
 

-sub pagetype ($) {
+sub pagetype ($) { #{{{

        my $page=shift;
        
        if ($page =~ /\.mdwn$/) {
        my $page=shift;
        
        if ($page =~ /\.mdwn$/) {


@@ -77,38 +154,46 @@ sub pagetype ($) {
        else {
                return "unknown";
        }
        else {
                return "unknown";
        }

-}
+} #}}}

 
 

-sub pagename ($) {
+sub pagename ($) { #{{{

        my $file=shift;
 
        my $type=pagetype($file);
        my $page=$file;
        $page=~s/\Q$type\E*$// unless $type eq 'unknown';
        return $page;
        my $file=shift;
 
        my $type=pagetype($file);
        my $page=$file;
        $page=~s/\Q$type\E*$// unless $type eq 'unknown';
        return $page;

-}
+} #}}}

 
 

-sub htmlpage ($) {
+sub htmlpage ($) { #{{{

        my $page=shift;
 
        return $page.".html";
        my $page=shift;
 
        return $page.".html";

-}
+} #}}}

 
 

-sub readpage ($) {
-       my $page=shift;
+sub readfile ($) { #{{{
+       my $file=shift;

 
 

+       if (-l $file) {
+               error("cannot read a symlink ($file)");
+       }
+       

        local $/=undef;
        local $/=undef;

-       open (PAGE, "$srcdir/$page") || error("failed to read $page: $!");
-       my $ret=<PAGE>;
-       close PAGE;
+       open (IN, "$file") || error("failed to read $file: $!");
+       my $ret=<IN>;
+       close IN;

        return $ret;
        return $ret;

-}
+} #}}}

 
 

-sub writepage ($$) {
-       my $page=shift;
+sub writefile ($$) { #{{{
+       my $file=shift;

        my $content=shift;
        my $content=shift;

+       
+       if (-l $file) {
+               error("cannot write to a symlink ($file)");
+       }

 
 

-       my $dir=dirname("$destdir/$page");
+       my $dir=dirname($file);

        if (! -d $dir) {
                my $d="";
                foreach my $s (split(m!/+!, $dir)) {
        if (! -d $dir) {
                my $d="";
                foreach my $s (split(m!/+!, $dir)) {


@@ -119,26 +204,17 @@ sub writepage ($$) {
                }
        }
        
                }
        }
        

-       open (PAGE, ">$destdir/$page") || error("failed to write $page: $!");
-       print PAGE $content;
-       close PAGE;
-}
-
-sub findlinks {
-       my $content=shift;
-
-       my @links;
-       while ($content =~ /$link/g) {
-               push @links, lc($1);
-       }
-       return @links;
-}
-
-# Given a page and the text of a link on the page, determine which existing
-# page that link best points to. Prefers pages under a subdirectory with
-# the same name as the source page, failing that goes down the directory tree
-# to the base looking for matching pages.
-sub bestlink ($$) {
+       open (OUT, ">$file") || error("failed to write $file: $!");
+       print OUT $content;
+       close OUT;
+} #}}}
+
+sub bestlink ($$) { #{{{
+       # Given a page and the text of a link on the page, determine which
+       # existing page that link best points to. Prefers pages under a
+       # subdirectory with the same name as the source page, failing that
+       # goes down the directory tree to the base looking for matching
+       # pages.

        my $page=shift;
        my $link=lc(shift);
        
        my $page=shift;
        my $link=lc(shift);
        


@@ -154,287 +230,257 @@ sub bestlink ($$) {
                }
        } while $cwd=~s!/?[^/]+$!!;
 
                }
        } while $cwd=~s!/?[^/]+$!!;
 

-       print STDERR "warning: page $page, broken link: $link\n";
+       #print STDERR "warning: page $page, broken link: $link\n";

        return "";
        return "";

-}
+} #}}}

 
 

-sub isinlinableimage ($) {
+sub isinlinableimage ($) { #{{{

        my $file=shift;
        
        $file=~/\.(png|gif|jpg|jpeg)$/;
        my $file=shift;
        
        $file=~/\.(png|gif|jpg|jpeg)$/;

-}
+} #}}}

 
 

-sub htmllink ($$) {
+sub pagetitle ($) { #{{{
+       my $page=shift;
+       $page=~s/__(\d+)__/&#$1;/g;
+       $page=~y/_/ /;
+       return $page;
+} #}}}
+
+sub htmllink ($$;$$) { #{{{

        my $page=shift;
        my $link=shift;
        my $page=shift;
        my $link=shift;

+       my $noimageinline=shift; # don't turn links into inline html images
+       my $forcesubpage=shift; # force a link to a subpage

 
 

-       my $bestlink=bestlink($page, $link);
+       my $bestlink;
+       if (! $forcesubpage) {
+               $bestlink=bestlink($page, $link);
+       }
+       else {
+               $bestlink="$page/".lc($link);
+       }

 
 

-       return $link if $page eq $bestlink;
+       my $linktext=pagetitle($link);
+       
+       return $linktext if length $bestlink && $page eq $bestlink;

        
        

+       # TODO BUG: %renderedfiles may not have it, if the linked to page
+       # was also added and isn't yet rendered! Note that this bug is
+       # masked by the bug mentioned below that makes all new files
+       # be rendered twice.

        if (! grep { $_ eq $bestlink } values %renderedfiles) {
                $bestlink=htmlpage($bestlink);
        }
        if (! grep { $_ eq $bestlink } values %renderedfiles) {
        if (! grep { $_ eq $bestlink } values %renderedfiles) {
                $bestlink=htmlpage($bestlink);
        }
        if (! grep { $_ eq $bestlink } values %renderedfiles) {

-               return "<a href=\"?\">?</a>$link"
+               return "<a href=\"$config{cgiurl}?do=create&page=$link&from=$page\">?</a>$linktext"

        }
        
        $bestlink=File::Spec->abs2rel($bestlink, dirname($page));
        
        }
        
        $bestlink=File::Spec->abs2rel($bestlink, dirname($page));
        

-       if (isinlinableimage($bestlink)) {
+       if (! $noimageinline && isinlinableimage($bestlink)) {

                return "<img src=\"$bestlink\">";
        }
                return "<img src=\"$bestlink\">";
        }

-       return "<a href=\"$bestlink\">$link</a>";
-}
-
-sub linkify ($$) {
-       my $content=shift;
-       my $file=shift;
-
-       $content =~ s/$link/htmllink(pagename($file), $1)/eg;
-       
-       return $content;
-}
-
-sub htmlize ($$) {
-       my $type=shift;
-       my $content=shift;
-       
-       if ($type eq '.mdwn') {
-               return Markdown::Markdown($content);
+       return "<a href=\"$bestlink\">$linktext</a>";
+} #}}}
+
+sub indexlink () { #{{{
+       return "<a href=\"$config{url}\">$config{wikiname}</a>";
+} #}}}
+
+sub lockwiki () { #{{{
+       # Take an exclusive lock on the wiki to prevent multiple concurrent
+       # run issues. The lock will be dropped on program exit.
+       if (! -d $config{wikistatedir}) {
+               mkdir($config{wikistatedir});

        }
        }

-       else {
-               error("htmlization of $type not supported");
+       open(WIKILOCK, ">$config{wikistatedir}/lockfile") ||
+               error ("cannot write to $config{wikistatedir}/lockfile: $!");
+       if (! flock(WIKILOCK, 2 | 4)) {
+               debug("wiki seems to be locked, waiting for lock");
+               my $wait=600; # arbitrary, but don't hang forever to 
+                             # prevent process pileup
+               for (1..600) {
+                       return if flock(WIKILOCK, 2 | 4);
+                       sleep 1;
+               }
+               error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)");

        }
        }

-}
+} #}}}

 
 

-sub linkbacks ($$) {
-       my $content=shift;
-       my $page=shift;
+sub unlockwiki () { #{{{
+       close WIKILOCK;
+} #}}}

 
 

-       my @links;
-       foreach my $p (keys %links) {
-               if (grep { $_ eq $page } @{$links{$p}}) {
-                       my $href=File::Spec->abs2rel(htmlpage($p), dirname($page));
-                       push @links, "<a href=\"$href\">$p</a>";
+sub loadindex () { #{{{
+       open (IN, "$config{wikistatedir}/index") || return;
+       while (<IN>) {
+               $_=possibly_foolish_untaint($_);
+               chomp;
+               my %items;
+               $items{link}=[];
+               foreach my $i (split(/ /, $_)) {
+                       my ($item, $val)=split(/=/, $i, 2);
+                       push @{$items{$item}}, $val;

                }
                }

-       }

 
 

-       $content.="<hr><p>Links: ".join(" ", sort @links)."</p>\n";
-}
+               my $page=pagename($items{src}[0]);
+               if (! $config{rebuild}) {
+                       $pagesources{$page}=$items{src}[0];
+                       $oldpagemtime{$page}=$items{mtime}[0];
+                       $oldlinks{$page}=[@{$items{link}}];
+                       $links{$page}=[@{$items{link}}];
+                       $renderedfiles{$page}=$items{dest}[0];
+               }
+               $pagectime{$page}=$items{ctime}[0];
+       }
+       close IN;
+} #}}}

 
 

-sub finalize ($$) {
-       my $content=shift;
-       my $page=shift;
+sub saveindex () { #{{{
+       if (! -d $config{wikistatedir}) {
+               mkdir($config{wikistatedir});
+       }
+       open (OUT, ">$config{wikistatedir}/index") || 
+               error("cannot write to $config{wikistatedir}/index: $!");
+       foreach my $page (keys %oldpagemtime) {
+               my $line="mtime=$oldpagemtime{$page} ".
+                       "ctime=$pagectime{$page} ".
+                       "src=$pagesources{$page} ".
+                       "dest=$renderedfiles{$page}";
+               if ($oldpagemtime{$page}) {
+                       $line.=" link=$_" foreach @{$links{$page}};
+               }
+               print OUT $line."\n";
+       }
+       close OUT;
+} #}}}

 
 

-       my $title=basename($page);
-       $title=~s/_/ /g;
+sub misctemplate ($$) { #{{{
+       my $title=shift;
+       my $pagebody=shift;

        
        

-       my $pagelink="";
-       my $path="";
-       foreach my $dir (reverse split("/", $page)) {
-               if (length($pagelink)) {
-                       $pagelink="<a href=\"$path$dir.html\">$dir</a>/ $pagelink";
-               }
-               else {
-                       $pagelink=$dir;
-               }
-               $path.="../";
+       my $template=HTML::Template->new(
+               filename => "$config{templatedir}/misc.tmpl"
+       );
+       $template->param(
+               title => $title,
+               indexlink => indexlink(),
+               wikiname => $config{wikiname},
+               pagebody => $pagebody,
+       );
+       return $template->output;
+}#}}}
+
+sub userinfo_get ($$) { #{{{
+       my $user=shift;
+       my $field=shift;
+
+       eval q{use Storable};
+       my $userdata=eval{ Storable::lock_retrieve("$config{wikistatedir}/userdb") };
+       if (! defined $userdata || ! ref $userdata || 
+           ! exists $userdata->{$user} || ! ref $userdata->{$user} ||
+            ! exists $userdata->{$user}->{$field}) {
+               return "";

        }
        }

-       $path=~s/\.\.\/$/index.html/;
-       $pagelink="<a href=\"$path\">$wikiname</a>/ $pagelink";
+       return $userdata->{$user}->{$field};
+} #}}}
+
+sub userinfo_set ($$$) { #{{{
+       my $user=shift;
+       my $field=shift;
+       my $value=shift;

        
        

-       $content="<html>\n<head><title>$title</title></head>\n<body>\n".
-                 "<h1>$pagelink</h1>\n".
-                 $content.
-                 "</body>\n</html>\n";
+       eval q{use Storable};
+       my $userdata=eval{ Storable::lock_retrieve("$config{wikistatedir}/userdb") };
+       if (! defined $userdata || ! ref $userdata || 
+           ! exists $userdata->{$user} || ! ref $userdata->{$user}) {
+               return "";
+       }

        
        

-       return $content;
-}
+       $userdata->{$user}->{$field}=$value;
+       my $oldmask=umask(077);
+       my $ret=Storable::lock_store($userdata, "$config{wikistatedir}/userdb");
+       umask($oldmask);
+       return $ret;
+} #}}}

 
 

-sub render ($) {
-       my $file=shift;
+sub userinfo_setall ($$) { #{{{
+       my $user=shift;
+       my $info=shift;

        
        

-       my $type=pagetype($file);
-       my $content=readpage($file);
-       if ($type ne 'unknown') {
-               my $page=pagename($file);
-               
-               $links{$page}=[findlinks($content)];
-               
-               $content=linkify($content, $file);
-               $content=htmlize($type, $content);
-               $content=linkbacks($content, $page);
-               $content=finalize($content, $page);
-               
-               writepage(htmlpage($page), $content);
-               $oldpagemtime{$page}=time;
-               $renderedfiles{$page}=htmlpage($page);
+       eval q{use Storable};
+       my $userdata=eval{ Storable::lock_retrieve("$config{wikistatedir}/userdb") };
+       if (! defined $userdata || ! ref $userdata) {
+               $userdata={};

        }
        }

-       else {
-               $links{$file}=[];
-               writepage($file, $content);
-               $oldpagemtime{$file}=time;
-               $renderedfiles{$file}=$file;
-       }
-}
+       $userdata->{$user}=$info;
+       my $oldmask=umask(077);
+       my $ret=Storable::lock_store($userdata, "$config{wikistatedir}/userdb");
+       umask($oldmask);
+       return $ret;
+} #}}}

 
 

-sub loadindex () {
-       open (IN, "$srcdir/.index") || return;
-       while (<IN>) {
-               ($_)=/(.*)/; # untaint
-               chomp;
-               my ($mtime, $file, $rendered, @links)=split(' ', $_);
-               my $page=pagename($file);
-               $pagesources{$page}=$file;
-               $oldpagemtime{$page}=$mtime;
-               $links{$page}=[@links];
-               $oldlinks{$page}=[@links];
-               $renderedfiles{$page}=$rendered;
-       }
-       close IN;
-}      
+sub is_admin ($) { #{{{
+       my $user_name=shift;

 
 

-sub saveindex () {
-       open (OUT, ">$srcdir/.index") || error("cannot write to .index: $!");
-       foreach my $page (keys %oldpagemtime) {
-       print OUT "$oldpagemtime{$page} $pagesources{$page} $renderedfiles{$page} ".
-                 join(" ", @{$links{$page}})."\n"
-                       if $oldpagemtime{$page};
-       }
-       close OUT;
-}
+       return grep { $_ eq $user_name } @{$config{adminuser}};
+} #}}}

 
 

-sub prune ($) {
-       my $file=shift;
+sub glob_match ($$) { #{{{
+       my $page=shift;
+       my $glob=shift;

 
 

-       unlink($file);
-       my $dir=dirname($file);
-       while (rmdir($dir)) {
-               $dir=dirname($dir);
-       }
-}
-
-sub refresh () {
-       # Find existing pages.
-       my %exists;
-       my @files;
-       find({
-               no_chdir => 1,
-               wanted => sub {
-                       if (/\/\.svn\//) {
-                               $File::Find::prune=1;
-                       }
-                       elsif (! -d $_ && ! /\.html$/ && ! /\/\./) {
-                               my ($f)=/(^[-A-Za-z0-9_.:\/+]+$)/; # untaint
-                               if (! defined $f) {
-                                       warn("skipping bad filename $_\n");
-                               }
-                               else {
-                                       $f=~s/^\Q$srcdir\E\/?//;
-                                       push @files, $f;
-                                       $exists{pagename($f)}=1;
-                               }
-                       }
-               },
-       }, $srcdir);
-
-       my %rendered;
-
-       # check for added or removed pages
-       my @add;
-       foreach my $file (@files) {
-               my $page=pagename($file);
-               if (! $oldpagemtime{$page}) {
-                       debug("new page $page");
-                       push @add, $file;
-                       $links{$page}=[];
-                       $pagesources{$page}=$file;
-               }
+       # turn glob into safe regexp
+       $glob=quotemeta($glob);
+       $glob=~s/\\\*/.*/g;
+       $glob=~s/\\\?/./g;
+       $glob=~s!\\/!/!g;
+       
+       $page=~/^$glob$/i;
+} #}}}
+
+sub globlist_match ($$) { #{{{
+       my $page=shift;
+       my @globlist=split(" ", shift);
+
+       # check any negated globs first
+       foreach my $glob (@globlist) {
+               return 0 if $glob=~/^!(.*)/ && glob_match($page, $1);

        }
        }

-       my @del;
-       foreach my $page (keys %oldpagemtime) {
-               if (! $exists{$page}) {
-                       debug("removing old page $page");
-                       push @del, $renderedfiles{$page};
-                       prune($destdir."/".$renderedfiles{$page});
-                       delete $renderedfiles{$page};
-                       $oldpagemtime{$page}=0;
-               }
+
+       foreach my $glob (@globlist) {
+               return 1 if glob_match($page, $glob);

        }
        
        }
        

-       # render any updated files
-       foreach my $file (@files) {
-               my $page=pagename($file);
-               
-               if (! exists $oldpagemtime{$page} ||
-                   mtime("$srcdir/$file") > $oldpagemtime{$page}) {
-                       debug("rendering changed file $file");
-                       render($file);
-                       $rendered{$file}=1;
-               }
-               elsif ($rebuild) {
-                       debug("rebuilding unchanged file $file");
-                       render($file);
-                       $rendered{$file}=1;
-               }
-       }
+       return 0;
+} #}}}
+
+sub main () { #{{{
+       getconfig();

        
        

-       # if any files were added or removed, check to see if each page
-       # needs an update due to linking to them
-       if (@add || @del) {
-FILE:          foreach my $file (@files) {
-                       next if $rendered{$file};
-                       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);
-                                               next FILE;
-                                       }
-                               }
-                       }
-               }
+       if ($config{setup}) {
+               require IkiWiki::Setup;
+               setup();

        }
        }

-
-       # handle linkbacks; if a page has added/removed links, update the
-       # pages it links to
-       # TODO: inefficient; pages may get rendered above and again here;
-       # problem is the linkbacks could be wrong in the first pass render
-       # above.
-       if (%rendered) {
-               my %linkchanged;
-               foreach my $file (keys %rendered, @del) {
-                       my $pagename=pagename($file);
-                       if (exists $links{$pagename}) {
-                               foreach my $link (@{$links{$pagename}}) {
-                                       if (! exists $oldlinks{$pagename} ||
-                                           ! grep { $_ eq $link } @{$oldlinks{$pagename}}) {
-                                               $linkchanged{$link}=1;
-                                       }
-                               }
-                       }
-                       if (exists $oldlinks{$pagename}) {
-                               foreach my $link (@{$oldlinks{$pagename}}) {
-                                       if (! exists $links{$pagename} ||
-                                           ! grep { $_ eq $link } @{$links{$pagename}}) {
-                                               $linkchanged{$link}=1;
-                                       }
-                               }
-                       }
-               }
-               foreach my $link (keys %linkchanged) {
-                       my $linkfile=$pagesources{$link};
-                       if (defined $linkfile) {
-                               debug("rendering $linkfile, to update its linkbacks");
-                               render($linkfile);
-                       }
-               }
+       elsif ($config{wrapper}) {
+               lockwiki();
+               require IkiWiki::Wrapper;
+               gen_wrapper();
+       }
+       elsif ($config{cgi}) {
+               lockwiki();
+               require IkiWiki::CGI;
+               cgi();
+       }
+       else {
+               lockwiki();
+               loadindex();
+               require IkiWiki::Render;
+               rcs_update();
+               refresh();
+               saveindex();

        }
        }

-}
+} #}}}

 
 

-loadindex();
-refresh();
-saveindex();
+main;