-#!/usr/bin/env perl
-#
-use strict;
-use warnings;
-
-use CSS::Minifier::XS 0.07;
-use File::Basename;
-use File::Copy;
-use File::Find;
-use File::Path qw(make_path);
-use File::Slurp;
-use File::Spec;
-use Getopt::Long;
-use JavaScript::Minifier::XS;
-use Pod::Usage;
-use XML::LibXML;
-use XML::LibXSLT;
-
-my $canonical_url = 'https://www.exim.org/';
-
-## Parse arguments
-my %opt = parse_arguments();
-
-## setup static root location
-## TODO: for doc generation only this should be within the docs dir
-$opt{staticroot} = File::Spec->catdir( $opt{docroot}, 'static' );
-
-## Generate the pages
-my %cache; # General cache object
-do_doc( 'spec', $_ ) foreach @{ $opt{spec} || [] };
-do_doc( 'filter', $_ ) foreach @{ $opt{filter} || [] };
-do_web() if ( $opt{web} );
-do_static() if ( $opt{web} or !$opt{localstatic} ); # need this for all other pages generated
-
-## Add the exim-html-current symlink
-foreach my $type (qw(html pdf)) {
- print "Symlinking exim-$type-current to exim-$type-$opt{latest}\n" if ( $opt{verbose} );
- unlink("$opt{docroot}/exim-$type-current");
- symlink( "exim-$type-$opt{latest}", "$opt{docroot}/exim-$type-current" )
- || warn "symlink to $opt{docroot}/exim-$type-current failed";
-}
-
-# ------------------------------------------------------------------
-## Generate the website files
-sub do_web {
-
- ## copy these templates to docroot...
- copy_transform_files( "$opt{tmpl}/web", $opt{docroot}, 0 );
-}
-
-# ------------------------------------------------------------------
-## Generate the static file set
-sub do_static {
- my $staticroot = shift || $opt{staticroot};
-
- ## make sure I have a directory
- mkdir($staticroot) or die "Unable to make staticroot: $!\n" unless ( -d $staticroot );
-
- ## copy these templates to docroot...
- copy_transform_files( "$opt{tmpl}/static", $staticroot, 1 );
-}
-
-# ------------------------------------------------------------------
-## Generate the website files
-sub copy_transform_files {
- my $source = shift;
- my $target = shift;
- my $static = shift;
-
- ## Make sure the template web directory exists
- die "No such directory: $source\n" unless ( -d $source );
-
- ## Scan the web templates
- find(
- sub {
- my ($path) = substr( $File::Find::name, length("$source"), length($File::Find::name) ) =~ m#^/*(.*)$#;
-
- if ( -d "$source/$path" ) {
-
- ## Create the directory in the target if it doesn't exist
- if ( !-d "$target/$path" ) {
- mkdir("$target/$path") or die "Unable to make $target/$path: $!\n";
- }
-
- }
- else {
-
- ## Build HTML from XSL files and simply copy static files which have changed
- if ( ( !$static ) and ( $path =~ /(.+)\.xsl$/ ) ) {
- print "Generating : /$1.html\n" if ( $opt{verbose} );
- transform( undef, "$source/$path", "$target/$1.html" );
- }
- elsif ( -f "$source/$path" ) {
-
- ## Skip if the file hasn't changed (mtime/size based)
- return
- if (( -f "$target/$path" )
- and ( ( stat("$source/$path") )[9] == ( stat("$target/$path") )[9] )
- and ( ( stat("$source/$path") )[7] == ( stat("$target/$path") )[7] ) );
-
- if ( $path =~ /(.+)\.css$/ ) {
- print "CSS to : /$path\n" if ( $opt{verbose} );
- my $content = read_file("$source/$path");
- write_file( "$target/$path", $opt{minify} ? CSS::Minifier::XS::minify($content) : $content );
- }
- elsif ( $path =~ /(.+)\.js$/ ) {
- print "JS to : /$path\n" if ( $opt{verbose} );
- my $content = read_file("$source/$path");
- write_file( "$target/$path",
- $opt{minify} ? JavaScript::Minifier::XS::minify($content) : $content );
- }
- else {
- ## Copy
- print "Copying to : /$path\n" if ( $opt{verbose} );
- copy( "$source/$path", "$target/$path" ) or die "$path: $!";
- }
- ## Set mtime
- utime( time, ( stat("$source/$path") )[9], "$target/$path" );
- }
- }
-
- },
- "$source"
- );
-}
-
-# ------------------------------------------------------------------
-## Generate index/chapter files for a doc
-sub do_doc {
- my ( $type, $xml_path ) = @_;
-
- ## Read and validate the XML file
- my $xml = XML::LibXML->new()->parse_file($xml_path) or die $!;
-
- ## Get the version number
- my $version = $xml->findvalue('/book/bookinfo/revhistory/revision/revnumber');
- die "Unable to get version number\n" unless defined $version && $version =~ /^\d+(\.\d+)*$/;
-
- ## Prepend chapter filenames?
- my $prepend_chapter = $type eq 'filter' ? 'filter_' : '';
-
- ## Add the canonical url for this document
- $xml->documentElement()
- ->appendTextChild( 'canonical_url',
- "${canonical_url}exim-html-current/doc/html/spec_html/" . ( $type eq 'spec' ? 'index' : 'filter' ) . ".html" );
-
- ## Add a url for the latest version of this document
- if ( $version ne $opt{latest} ) {
- $xml->documentElement()
- ->appendTextChild( 'current_url',
- "../../../../exim-html-current/doc/html/spec_html/" . ( $type eq 'spec' ? 'index' : 'filter' ) . ".html" );
- }
-
- ## Fixup the XML
- xref_fixup( $xml, $prepend_chapter );
-
- ## set the staticroot
- my $staticroot =
- $opt{localstatic}
- ? File::Spec->catdir( $opt{docroot}, "exim-html-$version", 'doc', 'html', 'static' )
- : $opt{staticroot};
- unless ( -d $staticroot ) {
- make_path( $staticroot, { verbose => $opt{verbose} } );
- do_static($staticroot);
- }
-
- ## Generate the front page
- {
- my $path = "exim-html-$version/doc/html/spec_html/" . ( $type eq 'filter' ? $type : 'index' ) . ".html";
- print "Generating : docroot:/$path\n" if ( $opt{verbose} );
- transform( $xml, "$opt{tmpl}/doc/index.xsl", "$opt{docroot}/$path", $staticroot );
- }
-
- ## Generate a Table of Contents XML file
- {
- my $path =
- "exim-html-$version/doc/html/spec_html/" . ( $type eq 'filter' ? 'filter_toc' : 'index_toc' ) . ".xml";
- print "Generating : docroot:/$path\n" if ( $opt{verbose} );
- transform( $xml, "$opt{tmpl}/doc/toc.xsl", "$opt{docroot}/$path", $staticroot );
- }
-
- ## Generate the chapters
- my $counter = 0;
- my @chapters = map { $_->cloneNode(1) } $xml->findnodes('/book/chapter');
- my( $chapter_title, $chapter_title_prev, $chapter_title_next );
- foreach my $chapter (@chapters) {
-
- ## Add a <chapter_id>N</chapter_id> node for the stylesheet to use
- $chapter->appendTextChild( 'chapter_id', ++$counter );
-
- ## Get the current and surrounding chapter titles
- $chapter_title_prev = $chapter_title;
- $chapter_title = $chapter_title_next || $chapter->findvalue('title_uri');
- $chapter_title_next = $chapters[$counter]->findvalue('title_uri') if $counter < int(@chapters);
-
- ## Add previous/next/canonical urls for nav
- {
- $chapter->appendTextChild( 'prev_url',
- $counter == 1
- ? $type eq 'filter'
- ? 'filter.html'
- : 'index.html'
- : sprintf( '%sch-%s.html', $prepend_chapter, $chapter_title_prev ) );
- $chapter->appendTextChild( 'this_url', sprintf( '%sch-%s.html', $prepend_chapter, $chapter_title ) );
- $chapter->appendTextChild( 'next_url', sprintf( '%sch-%s.html', $prepend_chapter, $chapter_title_next ) )
- unless int(@chapters) == $counter;
- $chapter->appendTextChild( 'toc_url', ( $type eq 'filter' ? 'filter' : 'index' ) . '.html' );
- $chapter->appendTextChild(
- 'canonical_url',
- sprintf(
- 'https://www.exim.org/exim-html-current/doc/html/spec_html/%sch-%s.html',
- $prepend_chapter, $chapter_title
- )
- );
- if ( $version ne $opt{latest} ) {
- $chapter->appendTextChild(
- 'current_url',
- sprintf(
- '../../../../exim-html-current/doc/html/spec_html/%sch-%s.html',
- $prepend_chapter, $chapter_title
- )
- );
- }
- }
-
- ## Create an XML document from the chapter
- my $doc = XML::LibXML::Document->createDocument( '1.0', 'UTF-8' );
- $doc->setDocumentElement($chapter);
-
- ## Transform the chapter into html
- {
- my $real_path = sprintf( 'exim-html-%s/doc/html/spec_html/%sch-%s.html', $version, $prepend_chapter, $chapter_title );
- my $link_path = sprintf( 'exim-html-%s/doc/html/spec_html/%sch%02d.html', $version, $prepend_chapter, $counter );
- print "Generating : docroot:/$real_path\n" if ( $opt{verbose} );
- transform( $doc, "$opt{tmpl}/doc/chapter.xsl", "$opt{docroot}/$real_path", $staticroot );
- # Making a relative symlink to a file in the same directory.
- # Extract just the filename portion of $real_path.
- my $real_file = basename($real_path);
- print "Symlinking : docroot:/$link_path to $real_file\n" if ( $opt{verbose} );
- if ( -f "$opt{docroot}/$link_path" ) {
- unlink("$opt{docroot}/$link_path") or die "failed removing $opt{docroot}/$link_path: $!";
- }
- symlink( "$real_file", "$opt{docroot}/$link_path" ) || die "symlink to $opt{docroot}/$link_path failed: $!";
- }
- }
-}
-
-# ------------------------------------------------------------------
-## Fixup xref tags
-sub xref_fixup {
- my ( $xml, $prepend_chapter ) = @_;
-
- my %index = ();
-
- ## Add the "prepend_chapter" info
- ( $xml->findnodes('/book') )[0]->appendTextChild( 'prepend_chapter', $prepend_chapter );
-
- ## Iterate over each chapter
- my $chapter_counter = 0;
- foreach my $chapter ( $xml->findnodes('/book/chapter') ) {
- ++$chapter_counter;
-
- my $chapter_id = $chapter->getAttribute('id');
- unless ($chapter_id) { # synthesise missing id
- $chapter_id = sprintf( 'chapter_noid_%04d', $chapter_counter );
- $chapter->setAttribute( 'id', $chapter_id );
- }
- my $chapter_title = $chapter->findvalue('title');
-
- ## Set title_uri so we can use eg ch-introduction.html instead of ch01.html
- $chapter->appendTextChild( 'title_uri', title_to_uri($chapter_title) );
-
- $index{$chapter_id} = { chapter_id => $chapter_counter, chapter_title => $chapter_title };
-
- ## Iterate over each section
- my $section_counter = 0;
- foreach my $section ( $chapter->findnodes('section') ) {
- ++$section_counter;
-
- my $section_id = $section->getAttribute('id');
- unless ($section_id) { # synthesise missing id
- $section_id = sprintf( 'section_noid_%04d_%04d', $chapter_counter, $section_counter );
- $section->setAttribute( 'id', $section_id );
- }
- my $section_title = $section->findvalue('title');
-
- $index{$section_id} = {
- chapter_id => $chapter_counter,
- chapter_title => $chapter_title,
- section_id => $section_counter,
- section_title => $section_title
- };
- }
- }
- ## Build indexes as new chapters
- build_indexes( $xml, $prepend_chapter, \%index );
-
- ## Replace all of the xrefs in the XML
- foreach my $xref ( $xml->findnodes('//xref') ) {
- my $linkend = $xref->getAttribute('linkend');
- if ( exists $index{$linkend} ) {
- $xref->setAttribute( 'chapter_id', $index{$linkend}{'chapter_id'} );
- $xref->setAttribute( 'chapter_title', $index{$linkend}{'chapter_title'} );
- $xref->setAttribute( 'section_id', $index{$linkend}{'section_id'} ) if ( $index{$linkend}{'section_id'} );
- $xref->setAttribute( 'section_title', $index{$linkend}{'section_title'} )
- if ( $index{$linkend}{'section_title'} );
- $xref->setAttribute( 'url',
- sprintf( '%sch-%s.html', $prepend_chapter, title_to_uri($index{$linkend}{'chapter_title'}) )
- . ( $index{$linkend}{'section_id'} ? '#' . $linkend : '' ) );
- }
- }
-}
-
-# ------------------------------------------------------------------
-## Build indexes
-sub build_indexes {
- my ( $xml, $prepend_chapter, $xref ) = @_;
-
- my $index_hash = {};
- my $current_id;
- foreach my $node ( $xml->findnodes('//section | //chapter | //indexterm') ) {
- if ( $node->nodeName eq 'indexterm' ) {
- my $role = $node->getAttribute('role') || 'concept';
- my $primary = $node->findvalue('child::primary');
- my $first = ( $primary =~ /^[A-Za-z]/ ) ? uc( substr( $primary, 0, 1 ) ) : ''; # first letter or marker
- my $secondary = $node->findvalue('child::secondary') || '';
- next unless ( $primary || $secondary ); # skip blank entries for now...
- $index_hash->{$role}{$first}{$primary}{$secondary} ||= [];
- push @{ $index_hash->{$role}{$first}{$primary}{$secondary} }, $current_id;
- }
- else {
- $current_id = $node->getAttribute('id');
- }
- }
-
- # now we build a set of new chapters with the index data in
- my $book = ( $xml->findnodes('/book') )[0];
- foreach my $role ( sort { $a cmp $b } keys %{$index_hash} ) {
- my $chapter = XML::LibXML::Element->new('chapter');
- $book->appendChild($chapter);
- $chapter->setAttribute( 'id', join( '_', 'index', $role ) );
- $chapter->setAttribute( 'class', 'index' );
- $chapter->appendTextChild( 'title', ( ucfirst($role) . ' Index' ) );
- $chapter->appendTextChild( 'title_uri', title_to_uri(ucfirst($role) . ' Index') );
-
- foreach my $first ( sort { $a cmp $b } keys %{ $index_hash->{$role} } ) {
- my $section = XML::LibXML::Element->new('section');
- my $list = XML::LibXML::Element->new('variablelist');
- $chapter->appendChild($section);
- $section->setAttribute( 'id', join( '_', 'index', $role, $first ) );
- $section->setAttribute( 'class', 'index' );
- $section->appendTextChild( 'title', $first ? $first : 'Symbols' );
- $section->appendChild($list);
- foreach my $primary ( sort { $a cmp $b } keys %{ $index_hash->{$role}{$first} } ) {
- my $entry = XML::LibXML::Element->new('varlistentry');
- my $item = XML::LibXML::Element->new('listitem');
- $list->appendChild($entry)->appendTextChild( 'term', $primary );
- $entry->appendChild($item);
- my $slist;
- foreach my $secondary ( sort { $a cmp $b } keys %{ $index_hash->{$role}{$first}{$primary} } ) {
- my $para = XML::LibXML::Element->new('para');
- if ( $secondary eq '' ) {
- $item->appendChild($para); # skip having extra layer of heirarchy
- }
- else {
- unless ($slist) {
- $slist = XML::LibXML::Element->new('variablelist');
- $item->appendChild($slist);
- }
- my $sentry = XML::LibXML::Element->new('varlistentry');
- my $sitem = XML::LibXML::Element->new('listitem');
- $slist->appendChild($sentry)->appendTextChild( 'term', $secondary );
- $sentry->appendChild($sitem)->appendChild($para);
- }
- my $count = 0;
- foreach my $ref ( @{ $index_hash->{$role}{$first}{$primary}{$secondary} } ) {
- $para->appendText(', ')
- if ( $count++ );
- my $xrefel = XML::LibXML::Element->new('xref');
- $xrefel->setAttribute( linkend => $ref );
- $xrefel->setAttribute( longref => 1 );
- $para->appendChild($xrefel);
- }
- }
- }
- }
- }
-}
-
-# ------------------------------------------------------------------
-## Handle the transformation
-sub transform {
- my ( $xml, $xsl_path, $out_path, $staticroot_abs ) = @_;
-
- ## make sure $staticroot is set
- $staticroot_abs ||= $opt{staticroot};
-
- ## Build an empty XML structure if an undefined $xml was passed
- unless ( defined $xml ) {
- $xml = XML::LibXML::Document->createDocument( '1.0', 'UTF-8' );
- $xml->setDocumentElement( $xml->createElement('content') );
- }
-
- ## Add the current version of Exim to the XML
- $xml->documentElement()->appendTextChild( 'current_version', $opt{latest} );
-
- ## Add the old versions of Exim to the XML
- $xml->documentElement()->appendTextChild( 'old_versions', $_ ) foreach old_docs_versions();
-
- ## Parse the ".xsl" file as XML
- my $xsl = XML::LibXML->new()->parse_file($xsl_path) or die $!;
-
- ## Generate a stylesheet from the ".xsl" XML.
- my $stylesheet = XML::LibXSLT->new()->parse_stylesheet($xsl);
-
- ## work out the static root relative to the target
- my $target_dir = ( File::Spec->splitpath($out_path) )[1];
- my $staticroot = File::Spec->abs2rel( $staticroot_abs, $target_dir );
-
- ## Generate a doc from the XML transformed with the XSL
- my $doc = $stylesheet->transform( $xml, staticroot => sprintf( "'%s'", $staticroot ) );
-
- ## Make the containing directory if it doesn't exist
- make_path( ( $out_path =~ /^(.+)\/.+$/ )[0], { verbose => $opt{verbose} } );
-
- ## Write out the document
- open my $out, '>', $out_path or die "Unable to write $out_path - $!";
- print $out $stylesheet->output_as_bytes($doc);
- close $out;
-}
-
-# ------------------------------------------------------------------
-## Takes a chapter title and fixes it up so it is suitable for use in a URI
-sub title_to_uri {
- my $title = lc(shift);
- $title =~ s/[^a-z0-9\s]+//gi; # Only allow spaces, numbers and letters
- $title =~ s/\s+/_/g; # Replace spaces with underscores so URLs are easier to copy about
- return $title;
-}
-
-# ------------------------------------------------------------------
-## Look in the docroot for old versions of the documentation
-sub old_docs_versions {
- if ( !exists $cache{old_docs_versions} ) {
- my @versions;
- foreach ( glob("$opt{docroot}/exim-html-*") ) {
- push @versions, $1 if /-(\d+(?:\.\d+)?)$/ && $1 lt $opt{latest} && -d $_;
- }
- $cache{old_docs_versions} = [ reverse sort { $a cmp $b } @versions ];
- }
- return @{ $cache{old_docs_versions} };
-}
-
-# ------------------------------------------------------------------
-## error_help
-sub error_help {
- my $msg = shift;
-
- warn $msg;
- pod2usage( -exitval => 1, -verbose => 0 );
-}
-
-# ------------------------------------------------------------------
-## Parse arguments
-sub parse_arguments {
-
- my %opt = ( spec => [], filter => [], help => 0, man => 0, web => 0, minify => 1, verbose => 0, localstatic => 0 );
- GetOptions(
- \%opt, 'help|h!', 'man!', 'web!', 'spec=s{1,}', 'filter=s{1,}',
- 'latest=s', 'tmpl=s', 'docroot=s', 'minify!', 'verbose!', 'localstatic!'
- ) || pod2usage( -exitval => 1, -verbose => 0 );
-
- ## --help
- pod2usage(0) if ( $opt{help} );
- pod2usage( -verbose => 2 ) if ( $opt{man} );
-
- ## --spec and --filter lists
- foreach my $set (qw[spec filter]) {
- $opt{$set} =
- [ map { my $f = File::Spec->rel2abs($_); error_help( 'No such file: ' . $_ ) unless -f $f; $f }
- @{ $opt{$set} } ];
- }
- ## --latest
- error_help('Missing value for latest') unless ( exists( $opt{latest} ) && defined( $opt{latest} ) );
- error_help('Invalid value for latest') unless $opt{latest} =~ /^\d+(?:\.\d+)*$/;
-
- ## --tmpl and --docroot
- foreach my $set (qw[tmpl docroot]) {
- error_help( 'Missing value for ' . $set ) unless ( exists( $opt{$set} ) && defined( $opt{$set} ) );
- my $f = File::Spec->rel2abs( $opt{$set} );
- error_help( 'No such directory: ' . $opt{$set} ) unless -d $f;
- $opt{$set} = $f;
- }
- error_help('Excess arguments') if ( scalar(@ARGV) );
-
- error_help('Must include at least one of --web, --spec or --filter')
- unless ( $opt{web} || scalar( @{ $opt{spec} || [] } ) || scalar( @{ $opt{filter} || [] } ) );
-
- return %opt;
-}
-
-# ------------------------------------------------------------------
-1;
-
-__END__
-
-=head1 NAME
-
-gen.pl - Generate exim html documentation and website
-
-=head1 SYNOPSIS
-
-gen.pl [options]
-
- Options:
- --help display this help and exits
- --man displays man page
- --spec file... spec docbook/XML source files
- --filter file... filter docbook/XML source files
- --web Generate the general website pages
- --latest VERSION Required. Specify the latest stable version of Exim.
- --tmpl PATH Required. Path to the templates directory
- --docroot PATH Required. Path to the website document root
- --[no-]minify [Don't] minify CSS and Javascript
- --localstatic Makes the static files local to each doc ver
-
-=head1 OPTIONS
-
-=over 4
-
-=item B<--help>
-
-Display help and exits
-
-=item B<--man>
-
-Display man page
-
-=item B<--spec> I<file...>
-
-List of files that make up the specification documentation docbook/XML source
-files.
-
-=item B<--filter> I<file...>
-
-List of files that make up the filter documentation docbook/XML source files.
-
-=item B<--web>
-
-Generate the website from the template files.
-
-=item B<--latest> I<version>
-
-Specify the current exim version. This is used to create links to the current
-documentation.
-
-This option is I<required>
-
-=item B<--tmpl> I<directory>
-
-Specify the directory that the templates are kept in.
-
-This option is I<required>
-
-=item B<--docroot> I<directory>
-
-Specify the directory that the output should be generated into. This is the
-website C<docroot> directory.
-
-This option is I<required>
-
-=item B<--minify>
-
-If this option is set then both the CSS and Javascript files processed are
-minified using L<CSS::Minifier::XS> and L<JavaScript::Minifier::XS>
-respectively.
-
-This option is set by default - to disable it specify C<--no-minify>
-
-=item B<--localstatic>
-
-Makes the static files (CSS, images etc), local for each version of the
-documentation. This is more suitable for packaged HTML documentation.
-
-=back
-
-=head1 DESCRIPTION
-
-Generates the exim website and HTML documentation.
-
-=head1 EXAMPLE
-
- script/gen.pl \
- --web \
- --spec docbook/*/spec.xml \
- --filter docbook/*/filter.xml \
- --latest 4.72 \
- --tmpl templates \
- --docroot /tmp/website
-
-=head1 AUTHOR
-
-Mike Cardwell
-
-Nigel Metheringham <nigel@exim.org> - mostly broke the framework Mike produced.
-
-=head1 COPYRIGHT
-
-Copyright 2010-2012 Exim Maintainers. All rights reserved.
-
-=cut
git://git.exim.org / exim-website.git / blobdiff