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my $wanted_hash;

GetOptions(
    'hash|h=s' => \$wanted_hash,
);

my $class_file = shift;
$wanted_hash = 'GENERAL_CLASS_NAME' unless defined $wanted_hash;

unless (-f $class_file) {
    my $ptag = ptag_find($class_file);
    if (defined $ptag) {
        $class_file = $ptag
    } else {
        die "[$class_file] is neither a file nor a ptag\n";
    }
}

$class_file->require or die $@;

# class_file is the actual file path; it could also come from a tag. Now we
# need to know which class is defined in that file so we can instantiate it.

my $class;
open my $fh, '<', $class_file or die "can't open $class_file: $!\n";
while (<$fh>) {
    next unless /^\s*package\s+(\w+(::\w+)*)\s*;/o;
    $class = $1;
    last;
}
close $fh or die "can't close $class_file: $!\n";

die "$class_file did not define a package" unless defined $class;

die "$class is not an environment class\n" unless
    UNIVERSAL::isa($class, 'Class::Scaffold::Environment');

my $env = $class->new;
my %hash = $env->every_hash($wanted_hash . "_HASH");

for my $key (sort keys %hash) {
    printf "%s: %s\n", $key, $hash{$key};
}


__END__
=pod

=head1 NAME

cf_dumpenv - dump the current configuration's environment

=head1 VERSION

version 1.102280

=head1 INSTALLATION

See perlmodinstall for information and options on installing Perl modules.

=head1 BUGS AND LIMITATIONS

No bugs have been reported.

Please report any bugs or feature requests through the web interface at
L<http://rt.cpan.org>.

=head1 AVAILABILITY

The latest version of this module is available from the Comprehensive Perl
Archive Network (CPAN). Visit L<http://www.perl.com/CPAN/> to find a CPAN
site near you, or see
L<http://search.cpan.org/dist/Class-Scaffold/>.

The development version lives at
L<http://github.com/hanekomu/Class-Scaffold/>.
Instead of sending patches, please fork this project using the standard git
and github infrastructure.

=head1 AUTHORS

=over 4

=item *

Marcel Gruenauer <marcel@cpan.org>

=item *

Florian Helmberger <fh@univie.ac.at>

=item *

Achim Adam <ac@univie.ac.at>

=item *

Mark Hofstetter <mh@univie.ac.at>

=item *

Heinz Ekker <ek@univie.ac.at>

=back

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 2008 by Marcel Gruenauer.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=cut