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#!/usr/bin/env perl
# $Id$
# Copyright 2007 Karl Berry.
# This file is licensed under the GNU General Public License version 2
# or any later version.
# 
# Return all files for a given TeX Live package, or package name(s) for
# a given set of files.

our $mydir;

BEGIN {
  $^W = 1;
  ($mydir = $0) =~ s,/[^/]*$,,;
  unshift (@INC, "$mydir/..");
}

use strict;

use TeXLive::TLPDB;
use Pod::Usage;
use Getopt::Long;

our $opt_debug = 0;
my $man = 0;
my $help = 0;

GetOptions("pkgof" => \@opt_pkgof,
           "debug!", "help|?" => \$help, "man" => \$man) or pod2usage(2);

pod2usage(1) if $help;
pod2usage(-exitstatus => 0, -verbose => 2) if $man;
exit (&main ());


sub main
{
  die "$0: expected exactly one package name; try --help if you need it.\n"
    if @ARGV != 1;
  my $pkg = $ARGV[0];

  my $Master = "$mydir/../..";  # xx TLPDB should default
  my $tlpdb_path = "$Master/texlive.tlpdb";
  my $tlpdb = TeXLive::TLPDB->new (location => "$tlpdb_path");

  my $obj = $tlpdb->get_package ($pkg);
  die "$0: no TeX Live package named $pkg.\n"
    if ! $obj;
  
  my @files = $obj->all_files;
  print "$_\n" foreach @files;
  
  return 0;
}

exit 0;



=head1 NAME

tlpfiles - list files contained in a TeX Live package, or vice versa

=head1 SYNOPSIS

tlpfiles [OPTION]... TLPKG
or: tlpfiles [OPTION]... -pkgof FILE...

=head1 OPTIONS

=over 8

=item B<-pkgof> I<file>...
Output the TeX Live package(s) in which each <file> is contained.

=item B<-debug>
Give debug messages from the TeX Live modules.

=item B<-help>
Print a brief help message and exit.

=item B<-man>
Print this documentation as a formatted manual page and exit.

=back

=head1 DESCRIPTION

In the first form, with just I<TLPKG> specified, return all the files
contained in the given TeX Live package (as determined by reading the
TeX Live package database).  This includes any executables as well as
runtime, documentation, and source files.

It does not include the C<.tlpsrc> file for the package, since that is
necessarily part of the build infrastructure, and not part of the
self-contained package.

In the second form, with the C<-pkgof> option, return the TeX Live
package in which each given I<FILE> is contained, or C<-> if no package
can be found.  The files may be given as a single whitespace-separated
argument, or the C<-pkgof> option may be given more than once, or both.

=head1 AUTHORS AND COPYRIGHT

This script and its documentation were written for the TeX Live
distribution (L<http://tug.org/texlive>) and both are licensed under the
GNU General Public License Version 2 or later.

=cut

### Local Variables:
### perl-indent-level: 2
### tab-width: 2
### indent-tabs-mode: nil
### End:
# vim:set tabstop=2: #