#!/usr/bin/perl

# Copyright (C) 2005 Mandriva
#                    Olivier Blin <oblin@mandriva.com>
# Copyright (C) 2017 Mageia
#                    Martin Whitaker <mageia@martin-whitaker.me.uk>
#
# 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, 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

use lib qw(/usr/lib/libDrakX);

use strict;

use MDK::Common;
use common;

use Getopt::Long;
use Pod::Usage;

use MGA::DrakISO::Config;
use MGA::DrakISO::ClassicBuild;
use MGA::DrakISO::Utils;

use MGA::DrakISO::BuildClassic;
use MGA::DrakISO::BuildBoot;
use MGA::DrakISO::BuildISO;

###############################################################################
# Actions
###############################################################################

sub clean {
    my ($build) = @_;
    rm_rf($_) foreach grep { -e $_ } $build->get_builddir, $build->get_system_root;
}

###############################################################################
# Main Program
###############################################################################

my @actions = (
    { name => 'dump-config',    do => \&MGA::DrakISO::Config::dump_config },
    { name => 'clean',          do => \&clean },
    { name => 'media',          do => \&MGA::DrakISO::BuildClassic::prepare_media },
    { name => 'files',          do => \&MGA::DrakISO::BuildClassic::prepare_files },
    { name => 'boot',           do => \&MGA::DrakISO::BuildBoot::prepare_iso_bootloader },
    { name => 'master',         do => \&MGA::DrakISO::BuildISO::build_iso },
);
my @all = qw(media files boot master);

die "you must be root to run this program\n" if $>;

my $build_object  = 'MGA::DrakISO::ClassicBuild'->new;
my $config_root   = '/etc/drakclassic';
my $config_path   = 'config/build.cfg';
my $settings_path = 'config/settings.cfg';

GetOptions(
    "help"              => sub { Pod::Usage::pod2usage('-verbose' => 1) },
    "all"               => sub { $_->{to_run} = 1 foreach grep { member($_->{name}, @all) } @actions },
    (map { $_->{name}   => \$_->{to_run} } @actions),
    "config-root=s"     => \$config_root,
    "config=s"          => \$config_path,
    "settings=s"        => \$settings_path,
    "define=s"          => \%{$build_object->{settings}},
) or Pod::Usage::pod2usage();

require standalone;
    every { !$_->{to_run} } @actions and Pod::Usage::pod2usage();

    MGA::DrakISO::Config::read_config($build_object, $config_root, $config_path, $settings_path);
    MGA::DrakISO::Config::check_config($build_object);
    MGA::DrakISO::Config::complete_config($build_object);

    if ($build_object->{settings}{repository} =~ /^http:|^ftp:/) {
        die "Sorry - remote repositories are not supported yet.";
    }

    foreach (grep { $_->{to_run} } @actions) {
        print qq(* entering step "$_->{name}"\n);
        $_->{do}->($build_object);
        print qq(* step "$_->{name}" done\n);
    }

__END__

###############################################################################
# Documentation
###############################################################################

=head1 NAME

drakclassic - A classic installer ISO mastering tool

=head1 SYNOPSIS

drakclassic [options]

 Options:
   --help            long help message

   --media           prepare the installation media to be included on the ISO
   --files           prepare the other files to be included on the ISO
   --boot            prepare installer boot and ISO bootloader files
   --master          build master image

   --all             run all the above steps

   --clean           clean installation chroot and work directory

   --config-root <dir>
                     root directory containing config and additional files
                     defaults to current directory if it contains a
                     configuration file, otherwise to "/etc/drakclassic"

   --config <file>   use this configuration file to control the build
                     defaults to "config/build.cfg"

   --settings <file> use this file as build settings (key=value format)
                     defaults to "config/settings.cfg"

   --define key=value
                     set setting "key" to "value"
                     takes precedence over values from a settings file

Examples:

 drakclassic --clean

 drakclassic --all

 drakclassic --config config/classic.cfg --media

=head1 OPTIONS

=over 8

=item B<--config>

Makes drakclassic use the next argument as a configuration file.
This file should contain a hash specifying the ISO makeup.
See the "drakiso-classic" page on the Mageia Wiki for details.

=item B<--settings>

Makes drakclassic load the next argument as a file in key=value format into
the $build->{settings} hash ($build being the global configuration hash).

Built-in keys:

  arch:       build architecture

  builddir:   directory hosting build files (initrd, loopbacks, images)

  chroot:     directory hosting chrooted urpm queries

  repository: path to the Mandriva distribution repository (ftp/http/local)

Example keys:
  media
  product

=back

=head1 DESCRIPTION

B<drakclassic> builds a classic installer ISO according to a configuration file,
creates a master image, and optionally installs it on a device.

See L<https://wiki.mageia.org/en/drakiso-classic>

=head1 AUTHORS

Martin Whitaker <mageia@martin-whitaker.me.uk>

=cut