use strict;
use warnings;
use Slay::Maker;
use File::Next;
use Path::Class;
use Template;
use File::Cache::Parsed;
use Cwd 'abs_path';
use Text::Restructured;
use Text::Restructured::Writer::LibXML;
use XML::LibXML;
use XML::LibXSLT;
use YAML::Syck;
my $stash={};
my $template=Template->new();
my $rest=Text::Restructured->new({},'WebCoso');
my $xml_parser=XML::LibXML->new();
my $xslt_proc=XML::LibXSLT->new();
my $fc=File::Cache::Parsed->new(follow=>1);
$fc->add_parser(qr{\.tt2?$} =>
sub {
$template->context->template($_[0]);
});
$fc->add_parser(qr{\.rest\.txt$} =>
sub {
my $dudom=$rest->Parse($_[1],$_[0]);
return Text::Restructured::Writer::LibXML
->new->ProcessDOM($dudom);
});
$fc->add_parser(qr{\.xml$} =>
sub { $xml_parser->parse_string($_[1],$_[0]) });
$fc->add_parser(qr{\.xslt?$} =>
sub { $xslt_proc->parse_stylesheet
($xml_parser->parse_string($_[1],$_[0])) });
$fc->add_writer(qr{\.xml$} =>
sub { $_[1]->toFile($_[0]) });
$fc->add_parser(qr{\.ya?ml$} =>
sub { Load($_[1]) });
$fc->add_writer(qr{\.ya?ml$} =>
sub { DumpFile($_[0],$_[1]) });
sub expandTT {
my ($maker,$target,$deps,$matches)=@_;
my $tmpl=$fc->get($deps->[-1]);
my $vars={ path=> $matches->[0],
language => $matches->[1],
%$stash,
};
if (@$deps>1) {
$vars->{tagged}=$fc->get($deps->[0]);
}
$fc->put($target,
$template->context->process($tmpl,
$vars));
}
sub parseRST {
my ($maker,$target,$deps,$matches)=@_;
$fc->put($target,$fc->get($deps->[0]));
}
sub du2html {
my ($maker,$target,$deps,$matches)=@_;
my $du=$fc->get($deps->[-1]);
my $xslt=file($deps->[-1])->parent->file('du2html.xsl');
$xslt=$fc->get($xslt);
my $out=$xslt->transform($du,
XML::LibXSLT::xpath_to_string(
path => $matches->[0],
language => $matches->[1],
));
$fc->put($target,$xslt->output_string($out));
}
{my $xpath=XML::LibXML::XPathContext->new();
$xpath->registerNs('x', 'http://www.w3.org/1999/xhtml');
sub getTags {
my ($maker,$target,$deps,$matches)=@_;
my %tagged;
for my $doc_name (@$deps) {
my $doc=$fc->get($doc_name);
my @tags=map {$_->textContext}
$xpath->find(
q{/document/docinfo/field[field_name='tags']/field_body/*/list_item},
$doc);
push @{$tagged{$_}},$doc_name for @tags;
}
$fc->put($target,\%tagged);
}
}
sub getChanges {
my ($maker,$target,$deps,$matches)=@_;
print "changes: $target <- @$deps, @$matches\n";
open my $fh,'>',$target;
}
sub ifExists {
my ($src)=@_;
return sub {
my ($maker,$target,$matches)=@_;
my $dep=Slay::MakerRule::var_expand_dep($src,$target,$matches);
return if -e $target and ! -e $dep;
return $dep;
}
}
sub fromTo {
my ($base,$opts)=@_;
my $iter=File::Next::files(
{
file_filter=>$opts->{files},
descend_filter=>$opts->{dirs},
},
$base);
my (@ret,$file);
if (defined $opts->{transform}) {
push @ret,$opts->{transform}->($file) while $file=$iter->();
}
else {
push @ret,$file while $file=$iter->();
}
return @ret;
}
{
my %order=(
'document.rest.tt'=>0,
'document.rest.txt'=>1,
'document.du.xml'=>2,
);
sub earliest {
my ($a,$b)=@_;
return $a unless $b;
return $order{$a} < $order{$b}
? $a
: $b;
}
}
sub keepEarliest {
my %dirs;
for my $f (@_) {
my $c=file($f);
$dirs{$c->parent}=earliest($c->basename,$dirs{$c->parent});
}
my @ret;
while (my ($d,$f)=each %dirs) {
push @ret,file($d,$f)->stringify;
}
return @ret;
}
my %files=(files=>sub{m{^document\.}});
my $maker=Slay::Maker->new({
rules => [
['src/(**)/document.(*).rest.txt',':',ifExists('src/$1/document.$2.rest.tt'),'=',\&expandTT],
['src/(**)/document.(*).du.xml',':',ifExists('src/$1/document.$2.rest.txt'),'=',\&parseRST],
['deps/tags.xml',':',fromTo('src/',{%files,transform=>sub{my $s=shift;$s=~s{\.[^.]+\.[^.]+$}{.du.xml};$s}}),'=',\&getTags],
['tags/(**)/document.(*).rest.txt',':','deps/tags.yml',ifExists('tags/$1/document.$2.rest.tt'),'=',\&expandTT],
['tags/(**)/document.(*).du.xml',':','deps/tags.yml',ifExists('tags/$1/document.$2.rest.txt'),'=',\&parseRST],
['dst/(**)/document.(*).xhtml',':','deps/tags.yml','deps/changes.xml',ifExists('src/$1/document.$2.du.xml'),ifExists('tags/$1/document.$2.du.xml'),'=',\&du2html],
],
options => {
auto_create_dirs => 1,
},
});
my @targets=fromTo('src/',
{
%files,
transform=>sub{
my $src=shift;
$src=~s{\.[^.]+\.[^.]+$}{.xhtml};
$src=~s{^src/}{dst/};
return $src;
},
}),
fromTo('tags/',
{
%files,
transform=>sub{
my $src=shift;
$src=~s{\.[^.]+\.[^.]+$}{.xhtml};
$src=~s{^tags/}{dst/};
return $src;
},
});
print "targets: @targets\n";
$maker->make(@targets);
