#!/usr/bin/perl
# unpack-srcpkg-l1 -- lintian unpack script (source packages level 1)
#
# syntax: unpack-srcpkg-l1 <base-dir> <dsc-file>
#
# Note, that <dsc-file> must be specified with absolute path.

# Copyright (C) 1998 Christian Schwarz
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, you can find it on the World Wide
# Web at http://www.gnu.org/copyleft/gpl.html, or write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.

use strict;
use vars qw($verbose);

($#ARGV == 1) or die "syntax: unpack-srcpkg-l1 <base-dir> <dsc-file>";
my $base_dir = shift;
my $file = shift;

# import perl libraries
use lib "$ENV{'LINTIAN_ROOT'}/lib";
use Util;

use File::Basename;

# stat $file
(my @stat = stat $file) or fail("$file: cannot stat: $!");

# get package control information
my $data = get_dsc_info($file);

# create directory in lab
print "N: Creating directory $base_dir ...\n" if $verbose;
mkdir("$base_dir", 0777) or fail("mkdir $base_dir: $!");
mkdir("$base_dir/fields", 0777) or fail("mkdir $base_dir/fields: $!");

# create control field files
for my $field (keys %$data) {
  my $field_file = "$base_dir/fields/$field";
  open(F, '>', $field_file) or fail("cannot open file $field_file for writing: $!");
  print F $data->{$field},"\n";
  close(F);
}

# Install symbolic links to source package files
my $dir = dirname($file);
my $name = basename($file);
symlink($file,"$base_dir/dsc") or fail("cannot symlink dsc file: $!");
for my $fs (split(/\n/,$data->{'files'})) {
  next if $fs =~ /^\s*$/o;
  my @t = split(/\s+/o,$fs);
  symlink("$dir/$t[2]","$base_dir/$t[2]") or fail("cannot symlink file $t[2]: $!");
}

# Create symbolic links to binary packages
mkdir("$base_dir/binary", 0777) or fail("mkdir $base_dir/binary: $!");
for my $bin (split(/,\s+/o,$data->{'binary'})) {
  symlink("../../../binary/$bin", "$base_dir/binary/$bin") or fail("cannot symlink binary package $bin: $!");
}

exit 0;