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#!/usr/bin/env perl
# $Id: check-file-coverage 5846 2007-12-23 21:38:57Z preining $
# Copyright 2007 Norbert Preining
# This file is licensed under the GNU General Public License version 2
# or any later version.
# 
# check the file coverage of a TLTREE wrt to a texlive.tlpdb

BEGIN {
  $^W = 1;
  chomp ($mydir = `dirname $0`);
  unshift (@INC, "$mydir/..");
}

use strict;

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


my @IgnorePatterns = qw|support/ source/ setuptl/ 
        common.sh$ config.guess$ config.sub$
        texmf-dist/README$ texmf-doc/README$ texmf/README$
        texmf-dist/ls-R$ texmf/ls-R$
        tlpkg/tlpsrc/
        texmf/lists/ 
        .mkisofsrc$ 00INST.TL$ 00LIVE.TL$ autorun.inf$
        tlpkg/lib/C/ tlpkg/lib/bash/ tlpkg/lib/python/ tlpkg/tests/ 
        tlpkg/etc/ 
  |;


chomp (my $opt_master = `cd $::mydir/../.. && pwd`);
our $opt_debug = 0;
my $help = 0;

GetOptions(
    "master=s" => \$opt_master,	# location of the TL tree
    "debug!", "help|?" => \$help) or pod2usage(1);

pod2usage(-exitstatus => 0, -verbose => 2) if $help;

exit (&main ());


sub main
{
  if (! -d $opt_master) {
    die "$0: Master $opt_master not a directory, goodbye.\n";
  }

  # checking for duplicates
  my $pack = "";
  open (TLPDB,"<$opt_master/tlpkg/texlive.tlpdb")
    or die "Cannot open $opt_master/tlpkg/texlive.tlpdb for reading: $!\n";
  my %filetopacks;
  while (<TLPDB>) {
    # ignore files mentioned in 00texlive.installer
    next if ($pack eq "00texlive.installer");
    next if m/^\s*#/;
    next if m/^\s*$/;
    next if m/^((bin|run|doc|src)files|depend|execute|category|revision|shortdesc|longdesc|catalogue)/;
    if (m/^name\s+(\S+)\s*$/) {
      $pack = "$1";
      next;
    }
    if (m/^ ([^\s]+)\s+/) {
      push @{$filetopacks{$1}}, $pack;
      next;
    } 
    print "NOT HANDLED $_";
  }
  print "Multiple included files:\n";
  foreach (keys %filetopacks) {
    my @foo = @{$filetopacks{$_}};
    if ($#foo < 0) {
      warn "that shouldn't happen: $_\n";
    } elsif ($#foo > 0) {
      print "  $_ (@foo)\n";
    }
  }
  # first we check for multiple included files using simple shell magic
  #print `grep '^ ' $opt_master/tlpkg/texlive.tlpdb | awk '{print"\t"\$1}' | sort | uniq -d`;

  warn "$0: reading Master tree $opt_master, that takes some time ...\n";
  my $tltree = TeXLive::TLTREE->new( "svnroot" => $opt_master );
  $tltree->init_from_svn;

  my %tltreefiles = %{$tltree->{'_allfiles'}};
  my @tlpdbfiles =  `grep '^ ' $opt_master/tlpkg/texlive.tlpdb | awk '{print\$1}'`;
  chomp(@tlpdbfiles);
  my %tlpdbf;
  for my $f (@tlpdbfiles) {
    $tlpdbf{$f} = 1;
  }
  my @nothit;
  for my $f (keys %tltreefiles) {
    # if it is mentioned in the tlpdb or is ignored it is considered 
    # as covered, thus, otherwise we push it onto the nothit list
    if (!defined($tlpdbf{$f})) {
      my $ignored = 0;
      foreach my $p (@IgnorePatterns) {
        if ($f =~ m/^$p/) {
          $ignored = 1;
          last;
        }
      }
      if (!$ignored) {
        push @nothit, $f;
      }
    }
  }
  if (@nothit) {
    print "NOT COVERED FILES:\n";
    for my $f (sort @nothit) { print "\t$f\n"; }
  }
  return 0;
}

__END__

=head1 NAME

check-file-coverage - check file coverage TLTREE vs. texlive.tlpdb

=head1 SYNOPSIS

check-file-coverage [OPTION]...

=head1 OPTIONS

=over 8

=item B<-master> I<Master_dir>
The location given by B<-master> must point to a valid svn repository
of TeX Live's Master direcory.  Defaults to C<../..> of C<$0>.

=back

The standard options C<-help> and C<-debug> are also accepted.
See the tlpfiles documentation for details.

=head1 DESCRIPTION

Missing

=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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