]> sipb.mit.edu Git - ikiwiki.git/blob - ikiwiki
ceb34189c0ef87ace50c110c51c8f62a2a1390a8
[ikiwiki.git] / ikiwiki
1 #!/usr/bin/perl -T
2
3 use warnings;
4 use strict;
5 use File::Find;
6 use Memoize;
7 use File::Spec;
8
9 $ENV{PATH}="/usr/local/bin:/usr/bin:/bin";
10
11 BEGIN {
12         $blosxom::version="is a proper perl module too much to ask?";
13         do "/usr/bin/markdown";
14 }
15
16 my ($srcdir, $destdir, %links, %oldlinks, %oldpagemtime, %renderedfiles,
17     %pagesources);
18 my $wiki_link_regexp=qr/\[\[([^\s]+)\]\]/;
19 my $wiki_file_regexp=qr/(^[-A-Za-z0-9_.:\/+]+$)/;
20 my $wiki_file_prune_regexp=qr!((^|/).svn/|\.\.|^\.|\/\.|\.html?$)!;
21 my $verbose=0;
22 my $wikiname="wiki";
23 my $default_pagetype=".mdwn";
24 my $cgi=0;
25 my $url="";
26 my $cgiurl="";
27 my $svn=1;
28
29 sub usage {
30         die "usage: ikiwiki [options] source dest\n";
31 }
32
33 sub error ($) {
34         if ($cgi) {
35                 print "Content-type: text/html\n\n";
36                 print "Error: @_\n";
37                 exit 1;
38         }
39         else {
40                 die @_;
41         }
42 }
43
44 sub debug ($) {
45         print "@_\n" if $verbose;
46 }
47
48 sub mtime ($) {
49         my $page=shift;
50         
51         return (stat($page))[9];
52 }
53
54 sub possibly_foolish_untaint ($) {
55         my $tainted=shift;
56         my ($untainted)=$tainted=~/(.*)/;
57         return $untainted;
58 }
59
60 sub basename {
61         my $file=shift;
62
63         $file=~s!.*/!!;
64         return $file;
65 }
66
67 sub dirname {
68         my $file=shift;
69
70         $file=~s!/?[^/]+$!!;
71         return $file;
72 }
73
74 sub pagetype ($) {
75         my $page=shift;
76         
77         if ($page =~ /\.mdwn$/) {
78                 return ".mdwn";
79         }
80         else {
81                 return "unknown";
82         }
83 }
84
85 sub pagename ($) {
86         my $file=shift;
87
88         my $type=pagetype($file);
89         my $page=$file;
90         $page=~s/\Q$type\E*$// unless $type eq 'unknown';
91         return $page;
92 }
93
94 sub htmlpage ($) {
95         my $page=shift;
96
97         return $page.".html";
98 }
99
100 sub readfile ($) {
101         my $file=shift;
102
103         local $/=undef;
104         open (IN, "$file") || error("failed to read $file: $!");
105         my $ret=<IN>;
106         close IN;
107         return $ret;
108 }
109
110 sub writefile ($$) {
111         my $file=shift;
112         my $content=shift;
113
114         my $dir=dirname($file);
115         if (! -d $dir) {
116                 my $d="";
117                 foreach my $s (split(m!/+!, $dir)) {
118                         $d.="$s/";
119                         if (! -d $d) {
120                                 mkdir($d) || error("failed to create directory $d: $!");
121                         }
122                 }
123         }
124         
125         open (OUT, ">$file") || error("failed to write $file: $!");
126         print OUT $content;
127         close OUT;
128 }
129
130 sub findlinks {
131         my $content=shift;
132
133         my @links;
134         while ($content =~ /$wiki_link_regexp/g) {
135                 push @links, lc($1);
136         }
137         return @links;
138 }
139
140 # Given a page and the text of a link on the page, determine which existing
141 # page that link best points to. Prefers pages under a subdirectory with
142 # the same name as the source page, failing that goes down the directory tree
143 # to the base looking for matching pages.
144 sub bestlink ($$) {
145         my $page=shift;
146         my $link=lc(shift);
147         
148         my $cwd=$page;
149         do {
150                 my $l=$cwd;
151                 $l.="/" if length $l;
152                 $l.=$link;
153
154                 if (exists $links{$l}) {
155                         #debug("for $page, \"$link\", use $l");
156                         return $l;
157                 }
158         } while $cwd=~s!/?[^/]+$!!;
159
160         #print STDERR "warning: page $page, broken link: $link\n";
161         return "";
162 }
163
164 sub isinlinableimage ($) {
165         my $file=shift;
166         
167         $file=~/\.(png|gif|jpg|jpeg)$/;
168 }
169
170 sub htmllink ($$) {
171         my $page=shift;
172         my $link=shift;
173
174         my $bestlink=bestlink($page, $link);
175
176         return $link if $page eq $bestlink;
177         
178         # TODO BUG: %renderedfiles may not have it, if the linked to page
179         # was also added and isn't yet rendered! Note that this bug is
180         # masked by the bug mentioned below that makes all new files
181         # be rendered twice.
182         if (! grep { $_ eq $bestlink } values %renderedfiles) {
183                 $bestlink=htmlpage($bestlink);
184         }
185         if (! grep { $_ eq $bestlink } values %renderedfiles) {
186                 return "<a href=\"$cgiurl?do=create&page=$link&from=$page\">?</a>$link"
187         }
188         
189         $bestlink=File::Spec->abs2rel($bestlink, dirname($page));
190         
191         if (isinlinableimage($bestlink)) {
192                 return "<img src=\"$bestlink\">";
193         }
194         return "<a href=\"$bestlink\">$link</a>";
195 }
196
197 sub linkify ($$) {
198         my $content=shift;
199         my $file=shift;
200
201         $content =~ s/$wiki_link_regexp/htmllink(pagename($file), $1)/eg;
202         
203         return $content;
204 }
205
206 sub htmlize ($$) {
207         my $type=shift;
208         my $content=shift;
209         
210         if ($type eq '.mdwn') {
211                 return Markdown::Markdown($content);
212         }
213         else {
214                 error("htmlization of $type not supported");
215         }
216 }
217
218 sub linkbacks ($$) {
219         my $content=shift;
220         my $page=shift;
221
222         my @links;
223         foreach my $p (keys %links) {
224                 next if bestlink($page, $p) eq $page;
225                 if (grep { length $_ && bestlink($p, $_) eq $page } @{$links{$p}}) {
226                         my $href=File::Spec->abs2rel(htmlpage($p), dirname($page));
227                         
228                         # Trim common dir prefixes from both pages.
229                         my $p_trimmed=$p;
230                         my $page_trimmed=$page;
231                         my $dir;
232                         1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
233                                 defined $dir &&
234                                 $p_trimmed=~s/^\Q$dir\E// &&
235                                 $page_trimmed=~s/^\Q$dir\E//;
236                                        
237                         push @links, "<a href=\"$href\">$p_trimmed</a>";
238                 }
239         }
240
241         $content.="<hr><p>Links: ".join(" ", sort @links)."</p>\n" if @links;
242         return $content;
243 }
244
245 sub finalize ($$) {
246         my $content=shift;
247         my $page=shift;
248
249         my $title=basename($page);
250         $title=~s/_/ /g;
251         
252         my $pagelink="";
253         my $path="";
254         foreach my $dir (reverse split("/", $page)) {
255                 if (length($pagelink)) {
256                         $pagelink="<a href=\"$path$dir.html\">$dir</a>/ $pagelink";
257                 }
258                 else {
259                         $pagelink=$dir;
260                 }
261                 $path.="../";
262         }
263         $path=~s/\.\.\/$/index.html/;
264         $pagelink="<a href=\"$path\">$wikiname</a>/ $pagelink";
265         
266         my @actions;
267         if (length $cgiurl) {
268                 push @actions, "<a href=\"$cgiurl?do=edit&page=$page\">Edit</a>";
269                 push @actions, "<a href=\"$cgiurl?do=recentchanges\">RecentChanges</a>";
270         }
271         
272         $content="<html>\n<head><title>$title</title></head>\n<body>\n".
273                   "<h1>$pagelink</h1>\n".
274                   "@actions\n<hr>\n".
275                   $content.
276                   "</body>\n</html>\n";
277         
278         return $content;
279 }
280
281 sub render ($) {
282         my $file=shift;
283         
284         my $type=pagetype($file);
285         my $content=readfile("$srcdir/$file");
286         if ($type ne 'unknown') {
287                 my $page=pagename($file);
288                 
289                 $links{$page}=[findlinks($content)];
290                 
291                 $content=linkify($content, $file);
292                 $content=htmlize($type, $content);
293                 $content=linkbacks($content, $page);
294                 $content=finalize($content, $page);
295                 
296                 writefile("$destdir/".htmlpage($page), $content);
297                 $oldpagemtime{$page}=time;
298                 $renderedfiles{$page}=htmlpage($page);
299         }
300         else {
301                 $links{$file}=[];
302                 writefile("$destdir/$file", $content);
303                 $oldpagemtime{$file}=time;
304                 $renderedfiles{$file}=$file;
305         }
306 }
307
308 sub loadindex () {
309         open (IN, "$srcdir/.index") || return;
310         while (<IN>) {
311                 $_=possibly_foolish_untaint($_);
312                 chomp;
313                 my ($mtime, $file, $rendered, @links)=split(' ', $_);
314                 my $page=pagename($file);
315                 $pagesources{$page}=$file;
316                 $oldpagemtime{$page}=$mtime;
317                 $oldlinks{$page}=[@links];
318                 $links{$page}=[@links];
319                 $renderedfiles{$page}=$rendered;
320         }
321         close IN;
322 }       
323
324 sub saveindex () {
325         open (OUT, ">$srcdir/.index") || error("cannot write to .index: $!");
326         foreach my $page (keys %oldpagemtime) {
327         print OUT "$oldpagemtime{$page} $pagesources{$page} $renderedfiles{$page} ".
328                   join(" ", @{$links{$page}})."\n"
329                         if $oldpagemtime{$page};
330         }
331         close OUT;
332 }
333
334 sub rcs_update () {
335         if (-d "$srcdir/.svn") {
336                 if (system("svn", "update", "--quiet", $srcdir) != 0) {
337                         warn("svn update failed\n");
338                 }
339         }
340 }
341
342 sub rcs_commit ($) {
343         my $message=shift;
344
345         if (-d "$srcdir/.svn") {
346                 if (system("svn", "commit", "--quiet", "-m",
347                            possibly_foolish_untaint($message), $srcdir) != 0) {
348                         warn("svn commit failed\n");
349                 }
350         }
351 }
352
353 sub rcs_add ($) {
354         my $file=shift;
355
356         if (-d "$srcdir/.svn") {
357                 my $parent=dirname($file);
358                 while (! -d "$srcdir/$parent/.svn") {
359                         $file=$parent;
360                         $parent=dirname($file);
361                 }
362                 
363                 if (system("svn", "add", "--quiet", "$srcdir/$file") != 0) {
364                         warn("svn add failed\n");
365                 }
366         }
367 }
368
369 sub rcs_recentchanges ($) {
370         my $num=shift;
371         my @ret;
372         
373         eval {use Date::Parse};
374         eval {use Time::Duration};
375         
376         if (-d "$srcdir/.svn") {
377                 my $info=`LANG=C svn info $srcdir`;
378                 my ($svn_url)=$info=~/^URL: (.*)$/m;
379
380                 my $div=qr/^--------------------+$/;
381                 my $infoline=qr/^r(\d+)\s+\|\s+([^\s]+)\s+\|\s+(\d+-\d+-\d+\s+\d+:\d+:\d+\s+[-+]?\d+).*/;
382                 my $state='start';
383                 my ($rev, $user, $when, @pages, $message);
384                 foreach (`LANG=C svn log -v '$svn_url'`) {
385                         chomp;
386                         print STDERR "state: $state ($_)\n";
387                         if ($state eq 'start' && /$div/) {
388                                 $state='header';
389                         }
390                         elsif ($state eq 'header' && /$infoline/) {
391                                 $rev=$1;
392                                 $user=$2;
393                                 $when=ago(time - str2time($3));
394                         }
395                         elsif ($state eq 'header' && /^\s+(.*)/) {
396                                 push @pages, $1;
397                         }
398                         elsif ($state eq 'header' && /^$/) {
399                                 $state='body';
400                         }
401                         elsif ($state eq 'body' && /$div/) {
402                                 push @ret, {rev => $rev, user => $user,
403                                         date => $when, message => $message,
404                                         pages => [@pages]},
405                                 print STDERR "have: @ret\n";
406                                 return @ret if @ret >= $num;
407                                 
408                                 $state='header';
409                                 $message=$rev=$user=$when=undef;
410                                 @pages=();
411                         }
412                         elsif ($state eq 'body') {
413                                 $message.="$_<br>\n";
414                         }
415                 }
416         }
417
418         return @ret;
419 }
420
421 sub prune ($) {
422         my $file=shift;
423
424         unlink($file);
425         my $dir=dirname($file);
426         while (rmdir($dir)) {
427                 $dir=dirname($dir);
428         }
429 }
430
431 sub refresh () {
432         # Find existing pages.
433         my %exists;
434         my @files;
435         find({
436                 no_chdir => 1,
437                 wanted => sub {
438                         if (/$wiki_file_prune_regexp/) {
439                                 $File::Find::prune=1;
440                         }
441                         elsif (! -d $_) {
442                                 my ($f)=/$wiki_file_regexp/; # untaint
443                                 if (! defined $f) {
444                                         warn("skipping bad filename $_\n");
445                                 }
446                                 else {
447                                         $f=~s/^\Q$srcdir\E\/?//;
448                                         push @files, $f;
449                                         $exists{pagename($f)}=1;
450                                 }
451                         }
452                 },
453         }, $srcdir);
454
455         my %rendered;
456
457         # check for added or removed pages
458         my @add;
459         foreach my $file (@files) {
460                 my $page=pagename($file);
461                 if (! $oldpagemtime{$page}) {
462                         debug("new page $page");
463                         push @add, $file;
464                         $links{$page}=[];
465                         $pagesources{$page}=$file;
466                 }
467         }
468         my @del;
469         foreach my $page (keys %oldpagemtime) {
470                 if (! $exists{$page}) {
471                         debug("removing old page $page");
472                         push @del, $renderedfiles{$page};
473                         prune($destdir."/".$renderedfiles{$page});
474                         delete $renderedfiles{$page};
475                         $oldpagemtime{$page}=0;
476                         delete $pagesources{$page};
477                 }
478         }
479         
480         # render any updated files
481         foreach my $file (@files) {
482                 my $page=pagename($file);
483                 
484                 if (! exists $oldpagemtime{$page} ||
485                     mtime("$srcdir/$file") > $oldpagemtime{$page}) {
486                         debug("rendering changed file $file");
487                         render($file);
488                         $rendered{$file}=1;
489                 }
490         }
491         
492         # if any files were added or removed, check to see if each page
493         # needs an update due to linking to them
494         # TODO: inefficient; pages may get rendered above and again here;
495         # problem is the bestlink may have changed and we won't know until
496         # now
497         if (@add || @del) {
498 FILE:           foreach my $file (@files) {
499                         my $page=pagename($file);
500                         foreach my $f (@add, @del) {
501                                 my $p=pagename($f);
502                                 foreach my $link (@{$links{$page}}) {
503                                         if (bestlink($page, $link) eq $p) {
504                                                 debug("rendering $file, which links to $p");
505                                                 render($file);
506                                                 $rendered{$file}=1;
507                                                 next FILE;
508                                         }
509                                 }
510                         }
511                 }
512         }
513
514         # handle linkbacks; if a page has added/removed links, update the
515         # pages it links to
516         # TODO: inefficient; pages may get rendered above and again here;
517         # problem is the linkbacks could be wrong in the first pass render
518         # above
519         if (%rendered) {
520                 my %linkchanged;
521                 foreach my $file (keys %rendered, @del) {
522                         my $page=pagename($file);
523                         if (exists $links{$page}) {
524                                 foreach my $link (@{$links{$page}}) {
525                                         $link=bestlink($page, $link);
526                                         if (length $link &&
527                                             ! exists $oldlinks{$page} ||
528                                             ! grep { $_ eq $link } @{$oldlinks{$page}}) {
529                                                 $linkchanged{$link}=1;
530                                         }
531                                 }
532                         }
533                         if (exists $oldlinks{$page}) {
534                                 foreach my $link (@{$oldlinks{$page}}) {
535                                         $link=bestlink($page, $link);
536                                         if (length $link &&
537                                             ! exists $links{$page} ||
538                                             ! grep { $_ eq $link } @{$links{$page}}) {
539                                                 $linkchanged{$link}=1;
540                                         }
541                                 }
542                         }
543                 }
544                 foreach my $link (keys %linkchanged) {
545                         my $linkfile=$pagesources{$link};
546                         if (defined $linkfile) {
547                                 debug("rendering $linkfile, to update its linkbacks");
548                                 render($linkfile);
549                         }
550                 }
551         }
552 }
553
554 # Generates a C wrapper program for running ikiwiki in a specific way.
555 # The wrapper may be safely made suid.
556 sub gen_wrapper ($$) {
557         my ($svn, $rebuild)=@_;
558
559         eval {use Cwd 'abs_path'};
560         $srcdir=abs_path($srcdir);
561         $destdir=abs_path($destdir);
562         my $this=abs_path($0);
563         if (! -x $this) {
564                 error("$this doesn't seem to be executable");
565         }
566
567         my @params=($srcdir, $destdir, "--wikiname=$wikiname");
568         push @params, "--verbose" if $verbose;
569         push @params, "--rebuild" if $rebuild;
570         push @params, "--nosvn" if !$svn;
571         push @params, "--cgi" if $cgi;
572         push @params, "--url=$url" if $url;
573         push @params, "--cgiurl=$cgiurl" if $cgiurl;
574         my $params=join(" ", @params);
575         my $call='';
576         foreach my $p ($this, $this, @params) {
577                 $call.=qq{"$p", };
578         }
579         $call.="NULL";
580         
581         my @envsave;
582         push @envsave, qw{REMOTE_ADDR QUERY_STRING REQUEST_METHOD REQUEST_URI
583                        CONTENT_TYPE CONTENT_LENGTH GATEWAY_INTERFACE} if $cgi;
584         my $envsave="";
585         foreach my $var (@envsave) {
586                 $envsave.=<<"EOF"
587         if ((s=getenv("$var")))
588                 asprintf(&newenviron[i++], "%s=%s", "$var", s);
589 EOF
590         }
591         
592         open(OUT, ">ikiwiki-wrap.c") || error("failed to write ikiwiki-wrap.c: $!");;
593         print OUT <<"EOF";
594 /* A wrapper for ikiwiki, can be safely made suid. */
595 #define _GNU_SOURCE
596 #include <stdio.h>
597 #include <unistd.h>
598 #include <stdlib.h>
599 #include <string.h>
600
601 extern char **environ;
602
603 int main (int argc, char **argv) {
604         /* Sanitize environment. */
605         char *s;
606         char *newenviron[$#envsave+3];
607         int i=0;
608 $envsave
609         newenviron[i++]="HOME=$ENV{HOME}";
610         newenviron[i]=NULL;
611         environ=newenviron;
612
613         if (argc == 2 && strcmp(argv[1], "--params") == 0) {
614                 printf("$params\\n");
615                 exit(0);
616         }
617         
618         execl($call);
619         perror("failed to run $this");
620         exit(1);
621 }
622 EOF
623         close OUT;
624         if (system("gcc", "ikiwiki-wrap.c", "-o", "ikiwiki-wrap") != 0) {
625                 error("failed to compile ikiwiki-wrap.c");
626         }
627         unlink("ikiwiki-wrap.c");
628         print "successfully generated ikiwiki-wrap\n";
629         exit 0;
630 }
631
632 sub cgi () {
633         eval q{use CGI};
634         my $q=CGI->new;
635
636         my $do=$q->param('do');
637         if (! defined $do || ! length $do) {
638                 error("\"do\" parameter missing");
639         }
640         
641         if ($do eq 'recentchanges') {
642                 my $list="<ul>\n";
643                 foreach my $change (rcs_recentchanges(100)) {
644                         print STDERR "change: $change....\n";
645                         $list.="<li>";
646                         foreach my $page (@{$change->{pages}}) {
647                                 $list.=$page." ";
648                         }
649                         $list.="<br>\n";
650                         $list.="changed ".$change->{when}." by ".
651                                htmllink("index", $change->{user}).
652                                ": <i>".$change->{message}."<br>\n";
653                         $list.="</li>\n";
654                 }
655                 $list.="</ul>\n";
656                 
657                 print $q->header,
658                       $q->start_html("RecentChanges"),
659                       $q->h1("<a href=\"$url\">$wikiname</a>/ RecentChanges"),
660                       $list,
661                       $q->end_form,
662                       $q->end_html;
663                 return;
664         }
665         
666         my ($page)=$q->param('page')=~/$wiki_file_regexp/;
667         if (! defined $page || ! length $page || $page ne $q->param('page') ||
668             $page=~/$wiki_file_prune_regexp/ || $page=~/^\//) {
669                 error("bad page name");
670         }
671         $page=lc($page);
672         
673         my $action=$q->request_uri;
674         $action=~s/\?.*//;
675         
676         if ($do eq 'create') {
677                 if (exists $pagesources{lc($page)}) {
678                         # hmm, someone else made the page in the meantime?
679                         print $q->redirect("$url/".htmlpage($page));
680                 }
681
682                 my @page_locs;
683                 my ($from)=$q->param('from')=~/$wiki_file_regexp/;
684                 if (! defined $from || ! length $from ||
685                     $from ne $q->param('from') ||
686                     $from=~/$wiki_file_prune_regexp/ || $from=~/^\//) {
687                         @page_locs=$page;
688                 }
689                 else {
690                         my $dir=$from."/";
691                         $dir=~s![^/]+/$!!;
692                         push @page_locs, $dir.$page;
693                         push @page_locs, "$from/$page";
694                         while (length $dir) {
695                                 $dir=~s![^/]+/$!!;
696                                 push @page_locs, $dir.$page;
697                         }
698                 }
699                 
700                 $q->param("do", "save");
701                 print $q->header,
702                       $q->start_html("Creating $page"),
703                       $q->start_h1("<a href=\"$url\">$wikiname</a>/ Creating $page"),
704                       $q->start_form(-action => $action),
705                       $q->hidden('do'),
706                       "Select page location:",
707                       $q->popup_menu('page', \@page_locs),
708                       $q->textarea(-name => 'content',
709                                -default => "",
710                                -rows => 20,
711                                -columns => 80),
712                       $q->br,
713                       "Optional comment about this change:",
714                       $q->br,
715                       $q->textfield(-name => "comments", -size => 80),
716                       $q->br,
717                       $q->submit("Save Page"),
718                       $q->end_form,
719                       $q->end_html;
720         }
721         elsif ($do eq 'edit') {
722                 my $content="";
723                 if (exists $pagesources{lc($page)}) {
724                         $content=readfile("$srcdir/$pagesources{lc($page)}");
725                         $content=~s/\n/\r\n/g;
726                 }
727                 $q->param("do", "save");
728                 print $q->header,
729                       $q->start_html("Editing $page"),
730                       $q->h1("<a href=\"$url\">$wikiname</a>/ Editing $page"),
731                       $q->start_form(-action => $action),
732                       $q->hidden('do'),
733                       $q->hidden('page'),
734                       $q->textarea(-name => 'content',
735                                -default => $content,
736                                -rows => 20,
737                                -columns => 80),
738                       $q->br,
739                       "Optional comment about this change:",
740                       $q->br,
741                       $q->textfield(-name => "comments", -size => 80),
742                       $q->br,
743                       $q->submit("Save Page"),
744                       $q->end_form,
745                       $q->end_html;
746         }
747         elsif ($do eq 'save') {
748                 my $file=$page.$default_pagetype;
749                 my $newfile=1;
750                 if (exists $pagesources{lc($page)}) {
751                         $file=$pagesources{lc($page)};
752                         $newfile=0;
753                 }
754                 
755                 my $content=$q->param('content');
756                 $content=~s/\r\n/\n/g;
757                 $content=~s/\r/\n/g;
758                 writefile("$srcdir/$file", $content);
759                 
760                 my $message="web commit from $ENV{REMOTE_ADDR}";
761                 if (defined $q->param('comments')) {
762                         $message.=": ".$q->param('comments');
763                 }
764                 
765                 if ($svn) {
766                         if ($newfile) {
767                                 rcs_add($file);
768                         }
769                         # presumably the commit will trigger an update
770                         # of the wiki
771                         rcs_commit($message);
772                 }
773                 else {
774                         refresh();
775                 }
776                 
777                 print $q->redirect("$url/".htmlpage($page));
778         }
779         else {
780                 error("unknown do parameter");
781         }
782 }
783
784 my $rebuild=0;
785 my $wrapper=0;
786 if (grep /^-/, @ARGV) {
787         eval {use Getopt::Long};
788         GetOptions(
789                 "wikiname=s" => \$wikiname,
790                 "verbose|v" => \$verbose,
791                 "rebuild" => \$rebuild,
792                 "wrapper" => \$wrapper,
793                 "svn!" => \$svn,
794                 "cgi" => \$cgi,
795                 "url=s" => \$url,
796                 "cgiurl=s" => \$cgiurl,
797         ) || usage();
798 }
799 usage() unless @ARGV == 2;
800 ($srcdir) = possibly_foolish_untaint(shift);
801 ($destdir) = possibly_foolish_untaint(shift);
802
803 if ($cgi && ! length $url) {
804         error("Must specify url to wiki with --url when using --cgi");
805 }
806
807 gen_wrapper($svn, $rebuild) if $wrapper;
808 memoize('pagename');
809 memoize('bestlink');
810 loadindex() unless $rebuild;
811 if ($cgi) {
812         cgi();
813 }
814 else {
815         rcs_update() if $svn;
816         refresh();
817         saveindex();
818 }