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#!/usr/bin/env perl
# $Id: check-depend-consistency 0 2007-10-14 20:32:44Z karl $
# Copyright 2007 Norbert Preining
# This file is licensed under the GNU General Public License version 2
# or any later version.
# 
# Check that all package are contained in some collection.

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

our $mydir;

use strict;

use TeXLive::TLConfig;
use TeXLive::TLUtils;
use TeXLive::TLPOBJ;
use TeXLive::TLPDB;
use Getopt::Long;
use Pod::Usage;
use File::Path;

my $help = 0;

TeXLive::TLUtils::process_logging_options();

GetOptions("help|?"       => \$help) or pod2usage(1);
pod2usage(-exitstatus => 0, -verbose => 2) if $help;

exit (&main ());

sub main
{
  # get the db.
  chomp (my $Master = `cd $mydir/../.. && pwd`);  # xx TLPDB should default
  my $tlpdb = TeXLive::TLPDB->new ("root" => "$Master");
  die("Cannot find tlpdb in $Master!\n") unless defined($tlpdb);
  my %presentpkg;
  my %wrongdep;
  for my $pkg ($tlpdb->list_packages) {
    $presentpkg{$pkg} = 1;
  }
  for my $pkg ($tlpdb->list_packages) {
    # do not check any package starting with 00texlive
    next if $pkg =~ m/^00texlive/;
    #next if ($pkg =~ m/^00texlive\.config$/);
    #next if ($pkg =~ m/^00texlive-installation\.config$/);
    for my $d ($tlpdb->get_package($pkg)->depends) {
      next if ($d =~ m/\.ARCH$/);
      if (!defined($presentpkg{$d})) {
        push @{$wrongdep{$d}}, $pkg;
      }
    }
  }
  if (keys %wrongdep) {
    print "DEPENDS WITHOUT PACKAGES:\n";
    for my $d (keys %wrongdep) {
      print "$d occurring in ", @{$wrongdep{$d}}, "\n";
    }
  }
}



__END__

=head1 NAME

check-depend-consistency - check that all depends actually exist as packages

=head1 SYNOPSIS

check-depend-consistency [OPTION]...

=head1 OPTIONS

Only the standard options B<-help> and B<-q>, B<-v>, and
B<-logfile>=I<file> are accepted; see the C<process_logging_options>
function in L<TeXLive::TLUtils> for details.

=head1 DESCRIPTION

Check consistency of C<depend> statements in all TeX Live packages,
including collections and schemes.

=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

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