12 use JavaScript::Minifier::XS;
17 my $canonical_url = 'http://www.exim.org/';
20 my %opt = parse_arguments();
23 do_doc( 'spec', $_ ) foreach @{ $opt{spec} || [] };
24 do_doc( 'filter', $_ ) foreach @{ $opt{filter} || [] };
25 do_web() if exists $opt{web};
27 ## Add the exim-html-current symlink
28 print "Symlinking exim-html-current to exim-html-$opt{latest}\n";
29 symlink( "$opt{docroot}/exim-html-$opt{latest}", "$opt{docroot}/exim-html-current" );
31 ## Generate the website files
34 ## Make sure the template web directory exists
35 die "No such directory: $opt{tmpl}/web\n" unless -d "$opt{tmpl}/web";
37 ## Scan the web templates
40 my ($path) = substr( $File::Find::name, length("$opt{tmpl}/web"), length($File::Find::name) ) =~ m#^/*(.*)$#;
42 if ( -d "$opt{tmpl}/web/$path" ) {
44 ## Create the directory in the doc root if it doesn't exist
45 if ( !-d "$opt{docroot}/$path" ) {
46 mkdir("$opt{docroot}/$path") or die "Unable to make $opt{docroot}/$path: $!\n";
52 ## Build HTML from XSL files and simply copy static files which have changed
53 if ( $path =~ /(.+)\.xsl$/ ) {
54 print "Generating : docroot:/$1.html\n";
55 transform( undef, "$opt{tmpl}/web/$path", "$opt{docroot}/$1.html" );
57 elsif ( -f "$opt{tmpl}/web/$path" ) {
59 ## Skip if the file hasn't changed (mtime based)
60 return if -f "$opt{docroot}/$path" && ( stat("$opt{tmpl}/web/$path") )[9] == ( stat("$opt{docroot}/$path") )[9];
62 if ( $path =~ /(.+)\.css$/ ) {
63 print "CSS to : docroot:/$path\n";
64 my $content = read_file("$opt{tmpl}/web/$path");
65 my $output = $opt{minify} ? CSS::Minifier::XS::minify($content) : $content;
66 $output =~ s/and\(/and (/g; # hack round minify bug
67 write_file( "$opt{docroot}/$path", $output );
69 elsif ( $path =~ /(.+)\.js$/ ) {
70 print "JS to : docroot:/$path\n";
71 my $content = read_file("$opt{tmpl}/web/$path");
72 write_file( "$opt{docroot}/$path", $opt{minify} ? JavaScript::Minifier::XS::minify($content) : $content );
76 print "Copying to : docroot:/$path\n";
77 copy( "$opt{tmpl}/web/$path", "$opt{docroot}/$path" ) or die "$path: $!";
80 utime( time, ( stat("$opt{tmpl}/web/$path") )[9], "$opt{docroot}/$path" );
89 ## Generate index/chapter files for a doc
91 my ( $type, $xml_path ) = @_;
93 ## Read and validate the XML file
94 my $xml = XML::LibXML->new()->parse_file($xml_path) or die $!;
96 ## Get the version number
97 my $version = $xml->findvalue('/book/bookinfo/revhistory/revision/revnumber');
98 die "Unable to get version number\n" unless defined $version && $version =~ /^\d+(\.\d+)*$/;
100 ## Prepend chapter filenames?
101 my $prepend_chapter = $type eq 'filter' ? 'filter_' : '';
103 ## Add the canonical url for this document
104 $xml->documentElement()
105 ->appendTextChild( 'canonical_url',
106 "${canonical_url}exim-html-current/doc/html/spec_html/" . ( $type eq 'spec' ? 'index' : 'filter' ) . ".html" );
109 xref_fixup( $xml, $prepend_chapter );
111 ## Generate the front page
113 my $path = "exim-html-$version/doc/html/spec_html/" . ( $type eq 'filter' ? $type : 'index' ) . ".html";
114 print "Generating : docroot:/$path\n";
115 transform( $xml, "$opt{tmpl}/doc/index.xsl", "$opt{docroot}/$path", );
118 ## Generate a Table of Contents XML file
120 my $path = "exim-html-$version/doc/html/spec_html/" . ( $type eq 'filter' ? 'filter_toc' : 'index_toc' ) . ".xml";
121 print "Generating : docroot:/$path\n";
122 transform( $xml, "$opt{tmpl}/doc/toc.xsl", "$opt{docroot}/$path", );
125 ## Generate the chapters
127 foreach my $chapter ( map { $_->cloneNode(1) } $xml->findnodes('/book/chapter') ) {
129 ## Add a <chapter_id>N</chapter_id> node for the stylesheet to use
130 $chapter->appendTextChild( 'chapter_id', ++$counter );
132 ## Add previous/next/canonical urls for nav
134 $chapter->appendTextChild( 'prev_url',
139 : sprintf( '%sch%02d.html', $prepend_chapter, $counter - 1 ) );
140 $chapter->appendTextChild( 'next_url', sprintf( '%sch%02d.html', $prepend_chapter, $counter + 1 ) );
141 $chapter->appendTextChild( 'canonical_url',
142 sprintf( 'http://www.exim.org/exim-html-current/doc/html/spec_html/%sch%02d.html', $prepend_chapter, $counter ) );
145 ## Create an XML document from the chapter
146 my $doc = XML::LibXML::Document->createDocument( '1.0', 'UTF-8' );
147 $doc->setDocumentElement($chapter);
149 ## Transform the chapter into html
151 my $path = sprintf( 'exim-html-%s/doc/html/spec_html/%sch%02d.html', $version, $prepend_chapter, $counter );
152 print "Generating : docroot:/$path\n";
153 transform( $doc, "$opt{tmpl}/doc/chapter.xsl", "$opt{docroot}/$path", );
160 my ( $xml, $prepend_chapter ) = @_;
164 ## Add the "prepend_chapter" info
165 ( $xml->findnodes('/book') )[0]->appendTextChild( 'prepend_chapter', $prepend_chapter );
167 ## Iterate over each chapter
168 my $chapter_counter = 0;
169 foreach my $chapter ( $xml->findnodes('/book/chapter') ) {
172 my $chapter_id = $chapter->getAttribute('id');
173 unless ($chapter_id) { # synthesise missing id
174 $chapter_id = sprintf( 'chapter_noid_%04d', $chapter_counter );
175 $chapter->setAttribute( 'id', $chapter_id );
177 my $chapter_title = $chapter->findvalue('title');
179 $index{$chapter_id} = { chapter_id => $chapter_counter, chapter_title => $chapter_title };
181 ## Iterate over each section
182 my $section_counter = 0;
183 foreach my $section ( $chapter->findnodes('section') ) {
186 my $section_id = $section->getAttribute('id');
187 unless ($section_id) { # synthesise missing id
188 $section_id = sprintf( 'section_noid_%04d_%04d', $chapter_counter, $section_counter );
189 $section->setAttribute( 'id', $section_id );
191 my $section_title = $section->findvalue('title');
193 $index{$section_id} = {
194 chapter_id => $chapter_counter,
195 chapter_title => $chapter_title,
196 section_id => $section_counter,
197 section_title => $section_title
201 ## Build indexes as new chapters
202 build_indexes( $xml, $prepend_chapter, \%index );
204 ## Replace all of the xrefs in the XML
205 foreach my $xref ( $xml->findnodes('//xref') ) {
206 my $linkend = $xref->getAttribute('linkend');
207 if ( exists $index{$linkend} ) {
208 $xref->setAttribute( 'chapter_id', $index{$linkend}{'chapter_id'} );
209 $xref->setAttribute( 'chapter_title', $index{$linkend}{'chapter_title'} );
210 $xref->setAttribute( 'section_id', $index{$linkend}{'section_id'} ) if ( $index{$linkend}{'section_id'} );
211 $xref->setAttribute( 'section_title', $index{$linkend}{'section_title'} ) if ( $index{$linkend}{'section_title'} );
212 $xref->setAttribute( 'url',
213 sprintf( '%sch%02d.html', $prepend_chapter, $index{$linkend}{'chapter_id'} )
214 . ( $index{$linkend}{'section_id'} ? '#' . $linkend : '' ) );
221 my ( $xml, $prepend_chapter, $xref ) = @_;
225 foreach my $node ( $xml->findnodes('//section | //chapter | //indexterm') ) {
226 if ( $node->nodeName eq 'indexterm' ) {
227 my $role = $node->getAttribute('role') || 'concept';
228 my $primary = $node->findvalue('child::primary');
229 my $first = ( $primary =~ /^[A-Za-z]/ ) ? uc( substr( $primary, 0, 1 ) ) : ''; # first letter or marker
230 my $secondary = $node->findvalue('child::secondary') || '';
231 next unless ( $primary || $secondary ); # skip blank entries for now...
232 $index_hash->{$role}{$first}{$primary}{$secondary} ||= [];
233 push @{ $index_hash->{$role}{$first}{$primary}{$secondary} }, $current_id;
236 $current_id = $node->getAttribute('id');
240 # now we build a set of new chapters with the index data in
241 my $book = ( $xml->findnodes('/book') )[0];
242 foreach my $role ( sort { $a cmp $b } keys %{$index_hash} ) {
243 my $chapter = XML::LibXML::Element->new('chapter');
244 $book->appendChild($chapter);
245 $chapter->setAttribute( 'id', join( '_', 'index', $role ) );
246 $chapter->setAttribute( 'class', 'index' );
247 $chapter->appendTextChild( 'title', ( ucfirst($role) . ' Index' ) );
248 foreach my $first ( sort { $a cmp $b } keys %{ $index_hash->{$role} } ) {
249 my $section = XML::LibXML::Element->new('section');
250 my $list = XML::LibXML::Element->new('variablelist');
251 $chapter->appendChild($section);
252 $section->setAttribute( 'id', join( '_', 'index', $role, $first ) );
253 $section->setAttribute( 'class', 'index' );
254 $section->appendTextChild( 'title', $first ? $first : 'Symbols' );
255 $section->appendChild($list);
256 foreach my $primary ( sort { $a cmp $b } keys %{ $index_hash->{$role}{$first} } ) {
257 my $entry = XML::LibXML::Element->new('varlistentry');
258 my $item = XML::LibXML::Element->new('listitem');
259 $list->appendChild($entry)->appendTextChild( 'term', $primary );
260 $entry->appendChild($item);
262 foreach my $secondary ( sort { $a cmp $b } keys %{ $index_hash->{$role}{$first}{$primary} } ) {
263 my $para = XML::LibXML::Element->new('para');
264 if ( $secondary eq '' ) {
265 $item->appendChild($para); # skip having extra layer of heirarchy
269 $slist = XML::LibXML::Element->new('variablelist');
270 $item->appendChild($slist);
272 my $sentry = XML::LibXML::Element->new('varlistentry');
273 my $sitem = XML::LibXML::Element->new('listitem');
274 $slist->appendChild($sentry)->appendTextChild( 'term', $secondary );
275 $sentry->appendChild($sitem)->appendChild($para);
278 foreach my $ref ( @{ $index_hash->{$role}{$first}{$primary}{$secondary} } ) {
279 $para->appendText(', ')
281 my $xrefel = XML::LibXML::Element->new('xref');
282 $xrefel->setAttribute( linkend => $ref );
283 $xrefel->setAttribute( longref => 1 );
284 $para->appendChild($xrefel);
292 ## Handle the transformation
294 my ( $xml, $xsl_path, $out_path ) = @_;
296 ## Build an empty XML structure if an undefined $xml was passed
297 unless ( defined $xml ) {
298 $xml = XML::LibXML::Document->createDocument( '1.0', 'UTF-8' );
299 $xml->setDocumentElement( $xml->createElement('content') );
302 ## Add the current version of Exim to the XML
303 $xml->documentElement()->appendTextChild( 'current_version', $opt{latest} );
305 ## Parse the ".xsl" file as XML
306 my $xsl = XML::LibXML->new()->parse_file($xsl_path) or die $!;
308 ## Generate a stylesheet from the ".xsl" XML.
309 my $stylesheet = XML::LibXSLT->new()->parse_stylesheet($xsl);
311 ## Generate a doc from the XML transformed with the XSL
312 my $doc = $stylesheet->transform($xml);
314 ## Make the containing directory if it doesn't exist
315 mkdirp( ( $out_path =~ /^(.+)\/.+$/ )[0] );
317 ## Write out the document
318 open my $out, '>', $out_path or die $!;
319 print $out $stylesheet->output_as_bytes($doc);
328 foreach ( split( /\//, $path ) ) {
330 my $make = join( '/', @parts );
331 next unless length($make);
333 mkdir($make) or die "Unable to mkdir $make: $!\n";
342 pod2usage( -exitval => 1, -verbose => 0 );
346 sub parse_arguments {
348 my %opt = ( spec => [], filter => [], help => 0, man => 0, web => 0, minify => 1 );
349 GetOptions( \%opt, 'help|h!', 'man!', 'web!', 'spec=s{1,}', 'filter=s{1,}', 'latest=s', 'tmpl=s', 'docroot=s', 'minify!' )
350 || pod2usage( -exitval => 1, -verbose => 0 );
353 pod2usage(0) if ( $opt{help} );
354 pod2usage( -verbose => 2 ) if ( $opt{man} );
356 ## --spec and --filter lists
357 foreach my $set (qw[spec filter]) {
358 $opt{$set} = [ map { my $f = File::Spec->rel2abs($_); help( 1, 'No such file: ' . $_ ) unless -f $f; $f } @{ $opt{$set} } ];
361 error_help('Missing value for latest') unless ( exists( $opt{latest} ) && defined( $opt{latest} ) );
362 error_help('Invalid value for latest') unless $opt{latest} =~ /^\d+(?:\.\d+)*$/;
364 ## --tmpl and --docroot
365 foreach my $set (qw[tmpl docroot]) {
366 error_help( 'Missing value for ' . $set ) unless ( exists( $opt{$set} ) && defined( $opt{$set} ) );
367 my $f = File::Spec->rel2abs( $opt{$set} );
368 error_help( 'No such directory: ' . $opt{$set} ) unless -d $f;
371 error_help('Excess arguments') if ( scalar(@ARGV) );
373 error_help('Must include at least one of --web, --spec or --filter')
374 unless ( defined $opt{web} || scalar( @{ $opt{spec} } ) || scalar( @{ $opt{web} } ) );
385 gen.pl - Generate exim html documentation and website
392 --help display this help and exits
393 --man displays man page
394 --spec file... spec docbook/XML source files
395 --filter file... filter docbook/XML source files
396 --web Generate the general website pages
397 --latest VERSION Required. Specify the latest stable version of Exim.
398 --tmpl PATH Required. Path to the templates directory
399 --docroot PATH Required. Path to the website document root
400 --[no-]minify [Don't] minify CSS and Javascript
408 Display help and exits
414 =item B<--spec> I<file...>
416 List of files that make up the specification documentation
417 docbook/XML source files.
419 =item B<--filter> I<file...>
421 List of files that make up the filter documentation docbook/XML
426 Generate the website from the template files.
428 =item B<--latest> I<version>
430 Specify the current exim version. This is used to create links to
431 the current documentation.
433 This option is I<required>
435 =item B<--tmpl> I<directory>
437 Specify the directory that the templates are kept in.
439 This option is I<required>
441 =item B<--docroot> I<directory>
443 Specify the directory that the output should be generated into.
444 This is the website C<docroot> directory.
446 This option is I<required>
450 If this option is set then both the CSS and Javascript files
451 processed are minified using L<CSS::Minifier::XS> and
452 L<JavaScript::Minifier::XS> respectively.
454 This option is set by default - to disable it specify C<--no-minify>
460 Generates the exim website and HTML documentation.
466 --spec docbook/*/spec.xml \
467 --filter docbook/*/filter.xml \
470 --docroot /tmp/website
476 Nigel Metheringham <nigel@exim.org> - mostly broke the framework
481 Copyright 2010 Exim Maintainers. All rights reserved.