#!/usr/bin/perl
#
# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# 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.
#
# A copy of the GNU General Public License is available as
# `/usr/share/common-licenses/GPL' in the Debian GNU/Linux distribution
# or on the World Wide Web at `http://www.gnu.org/copyleft/gpl.html'.
# You can also obtain it by writing to the Free Software Foundation,
# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2010 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Stig Thormodsrud
# Date: October 2010
# Description: Script to create config.boot revision backups.
#
# **** End License ****
#

use strict;
use warnings;
use lib '/opt/vyatta/share/perl5/';

use Vyatta::Config;
use Vyatta::ConfigMgmt;
use File::Compare;
use Getopt::Long;

#
# main
#

my $rollback;
Getopt::Long::Configure('pass_through');
GetOptions("rollback=s" => \$rollback,
          );

my $archive_dir      = cm_get_archive_dir();
my $lr_state_file    = cm_get_lr_state_file();
my $lr_conf_file     = cm_get_lr_conf_file();
my $last_commit_file = cm_get_last_commit_file();
my $tmp_config_file  = "/tmp/config.boot.$$";

my $commit_status = $ENV{'COMMIT_STATUS'};
my $commit_via    = $ENV{'COMMIT_VIA'};
my $commit_cmt    = $ENV{'COMMIT_COMMENT'};
$commit_status = 'unknown' if !defined $commit_via;
$commit_via    = 'other'   if !defined $commit_via;
$commit_cmt    = 'commit'  if !defined $commit_cmt;

if (! -d $archive_dir) {
    system("sudo mkdir $archive_dir");
    system("sudo chown vyatta:vyattacfg $archive_dir");
}
if (! defined $rollback) {
    my $cmd = '/opt/vyatta/sbin/vyatta-save-config.pl';
    system("$cmd $tmp_config_file > /dev/null");
    if (compare($tmp_config_file, $last_commit_file) == 0) {
        exit 0;
    }
    system("sudo mv $tmp_config_file $archive_dir/config.boot");
} else {
    my $boot_config_file = cm_get_boot_config_file();
    system("sudo cp $boot_config_file $archive_dir/config.boot");
}

system("sudo logrotate -f -s $lr_state_file $lr_conf_file");
my $user = getlogin() || getpwuid($>) || "unknown";
cm_commit_add_log($user, $commit_via, $commit_cmt);

exit 0;

# end of file