#!/bin/bash
#######################################################################
# This is a script to execute daily/weekly backups over NFS           #
# with mondorescue set of tools made by Hugo Rabson                   #
# http://www.mondorescue.com <-- Visit and contribute !               #
# This script made by Phazeman with a great help of                   #
# crash3m @ #mandrake, twkm, Lurch and  Speuler @ #bash on            #
# irc.freenode.net. It has been written to make it easy to use on     #
# several machines at the same time.                                  #
# This product is distributed under the GPL license and is issued     #
# without warrant of anytime against damages, loss of property, or    #
# loss of profita.                                                    #
#######################################################################

# Set the debug level to 1 if you want to print all the params and exit
# Otherwise set to 0

debug="0"

# Get the date
date=`date +"%d-%m-%Y"`

function check_conf {
if [ -f "/etc/backup-kungfu.conf" ]
then
        echo -e "\nConfiguration file found. Proceeding...\n"
        source /etc/backup-kungfu.conf
else
	echo -e "\n\033[40m\033[1;31mERROR: No configuration file found ! \nExiting now...\033[0m\n"
        exit 1
fi
}

function check_mondo {
if [ -x $mondo_path/$mondo_exe ]
then
        echo -e "mondoarchive executable found. Proceeding..."
else
	echo -e "\033[40m\033[1;31mERROR: mondo_exe variable is set wrong.\nPlease edit the config file and rerun the script.\nExiting now...\033[0m\n"
        exit 1
fi
}

function check_backup_dir {
	if [ -f $backup_dir ]
	then
		echo -e "\033[40m\033[1;31mERROR: backup_dir variable is set wrong.\nPlease edit the config file and rerun the script.\nExiting now...\033[0m\n"
		exit 1
	else
		echo -e "The backup dir found. Proceeding...\n"
	fi
}

function check_path {
	if [ -x $mondo_path/$mondo_exec ]
	then
		if [ "$PATH" == "" ]
		then
			echo -e "Running as cron job. Exporting path...\n"
			export PATH=$mondo_path
		fi
	else
		echo -e "\033[40m\033[1;31mERROR: No mondoarchive executable found in $mondo_path/.\nPlease edit the config file and then run again.\nExiting now...\033[0m\n"
		exit 1
	fi
}

function remove_garbage {
	echo -e "Removing the files left from previous mondoarchive run...\n"
	rm -rf /var/cache/mondo
	rm -rf ${backup_dir}/mondo*
	rm -rf ${backup_dir}/tmp*
}

function check_root {
	if [ "$UID" != "0" ] 
	then
		echo -e "\n\033[40m\033[1;31mERROR: Root check FAILED (you MUST be root to use this script)! Exiting...\033[0m\n"
		exit 1
	fi
}

function delete_old_backup {
	answer = "x"
	while "$(answer)" != ["y" | "Y" | "n" | "N"] 
	do
		echo -n "Do you want to delete all the previous \
			backups stored in $(backup_dir)/$(comp_name) ? (y/n) "
		read answer
		case "$(answer)" in
			["y" | "Y"] ) 
				echo -e "Removing the old backup files now...\n"
				rm -rf ${backup_dir}/${comp_name}*
				;;
			*) 
				;;
		esac
	done
}

function move_all {
	# Remove all the previous backups
	# echo -e "Removing the old backup files now...\n"
	# rm -rf ${backup_dir}/${comp_name}*
	
	# Create the new folder and move all the iso and floppy images to it
	echo -e "Creating the new backup directory and moving the files there...\n"
	mkdir -p ${backup_dir}/${comp_name}_${date}/images
	cp /var/cache/mindi/* ${backup_dir}/${comp_name}_${date}/images/
	
	# If you want just move the iso files without renaming them just uncomment the next line
	# and comment the next for loop
	mv $backup_dir/*.iso ${backup_dir}/${comp_name}_${date}/

	#for i in `ls $(backup_dir)/*.iso`
	#do
	#	mv  $(backup_dir)/$(i) ${backup_dir}/${comp_name}_${date}/$(comp_name)_backup_$(date)_$i
	#done
}

function print_params {
	echo -e "Debug = $debug\n\
Mondo executable = $mondo_exe\n\
Mondo path = $mondo_path\n\
Backup Dir = $backup_dir\n\
Excludes = $excludes\n\
Comp Name = $comp_name\n\
Mondo Params = $params\n\
Boot Loader = $bootloader\n\
Launch from dir = $from_dir\n\
Date = $date\n\
Mondo execution = '$archiveit'\n"
}

function cd_from_dir {
	if [ -d $from_dir ]
	then
		cd $from_dir
		echo -e "Entering the \"From\" directory...\n"
	else
		echo -e "\033[40m\033[1;31mERROR: The from_dir variable is set wrong.\nPlease edit the config file and rerun the script.\nExiting now...\033[0m\n"
		exit 1
	fi
}

function set_exec {
	archiveit="$mondo_path/${mondo_exe} ${params} -d ${backup_dir} -l ${bootloader} -E '${excludes}' &> /dev/null"
}

function do_cleanup { 
	remove_garbage; 
	exit 1; 
} 
trap do_cleanup INT

function main {
if [ $debug == "0" ]
then    # Execute the real backup
	#Verify if root
	check_root;
		
	# Check if mondo_exec set correct
	check_mondo;
	
	# Check if the conf file created in /etc 
	check_conf;

	# Check if the backup_dir set correct
	check_backup_dir;

	# Check mondo_path
	check_path;
	
	# Set the execution command
	set_exec;
	
	# Remove the garbage from the last run
	remove_garbage;
	
	# Enter the big directory to launch the backup
	cd_from_dir;
	
	#execute the backup
	echo -e "Executing the backup now. Please hold on, it can take few howrs.\nLook in /var/log/mondoarchive.log for current status of the backup.\n"
	eval $archiveit

	# Delete old backups from the dir
	#delete_old_backup;
	
	# Copy the mindi images to the backup folder and clean up the mess
	move_all;

	# Remove all the garbage left afer mondoarchive run
	remove_garbage;
else    # Print all the params for debug
	check_root;
	check_conf;
	check_path;
	set_exec;
	print_params;
fi
}

# Execute the main function
main;