BEGIN { -e 'Distar' or system("git clone git://git.shadowcat.co.uk/p5sagit/Distar.git") }
use lib 'Distar/lib';
use Distar 0.001;

author      'Ken Youens-Clark <kclark@cpan.org>';
manifest_include 'script' => qr/.+/;
manifest_include 't/data' => qr/.+/;
manifest_include 'share' => qr/.+/;
manifest_include '' => qr/\A(?:AUTHORS)\z/;

# eval so can generate deps for cpanm --installdeps .
eval {
  _recompile_grammars();
  _recreate_rt_source();
};
print "Got errors:\n\n$@" if $@;

sub _recompile_grammars {
  return; # disabled until RT#74593 is resolved

  require File::Spec;

  my $compiled_parser_dir = File::Spec->catdir(qw/
    share PrecompiledParsers Parse RecDescent DDL SQLT
  /);

  # Currently consider only single-name parsers containing a grammar marker
  # This is somewhat fragile, but better than loading all kinds of parsers
  # to some of which we may not even have the deps
  my $parser_libdir = 'lib/SQL/Translator/Parser';
  for my $parser_fn (glob "$parser_libdir/*.pm") {
    die "$parser_fn does not look like a readable file\n"
      unless ( -f $parser_fn and -r $parser_fn );

    my ($type) = $parser_fn =~ /^\Q$parser_libdir\E\/(.+)\.pm$/i
      or die "$parser_fn not named in expected format\n";

    my $parser_source = do { local (@ARGV, $/) = $parser_fn; <> };
    next unless $parser_source =~ /\$GRAMMAR.+?END_OF_GRAMMAR/s;


    my $precomp_parser_fn = File::Spec->catfile($compiled_parser_dir, "$type.pm");

    next if (
      -f $precomp_parser_fn
        and
      (stat($parser_fn))[9] <= (stat($precomp_parser_fn))[9]
    );


    print "Precompiling parser for $type\n";

    require $parser_fn;
    require Parse::RecDescent;

    Parse::RecDescent->Precompile(
      do {
        no strict 'refs';
        ${"SQL::Translator::Parser::${type}::GRAMMAR"}
          || die "No \$GRAMMAR global found in SQL::Translator::Parser::$type ($parser_fn)\n"
      },
      "Parse::RecDescent::DDL::SQLT::$type"
    );

    rename( "$type.pm", $precomp_parser_fn )
      or die "Unable to move $type.pm to $compiled_parser_dir: $!\n";
  }

}

sub _recreate_rt_source {
  my $base_xml = "t/data/roundtrip.xml";
  my $autogen_yaml = "t/data/roundtrip_autogen.yaml";

  print "Updating $autogen_yaml\n";

  unlink $autogen_yaml;

  eval {

    use lib 'lib';

    require SQL::Translator;
    require SQL::Translator::Parser::XML;

    open (my $fh, '>', $autogen_yaml) or die "$autogen_yaml: $!\n";

    my $tr = SQL::Translator->new;
    my $yaml = $tr->translate (
      parser => 'XML',
      file => $base_xml,
      producer => 'YAML',
    ) or  die sprintf ("Unable to translate %s to YAML: %s\n",
              $base_xml,
              $tr->error || 'error unknown'
          );

    print $fh $yaml;
    close $fh;
  };

  if ($@) {
    die <<EOE;

=========================================================================
===============              WARNING !!!                =================
=========================================================================

Unable to update the roundtrip schema (attempt triggered by AUTHOR mode).
Continuing Makefile generation, but please fix the errors indicated below
(typically by installing the missing modules).

-------------------------------------------------------------------------
$@

EOE
  }
}

# vim: ft=perl et sts=2 sw=2 tw=0:

1;