install

#!/bin/bash
#
# Automating BACKUP's

function make_executable() {
	echo "------- Permissions ----------"
	echo "- Making the scripts executeable"
	chmod +x runner backup_script
}

function create_folders() {
	echo "-------- Folders ----------"
	mkdir -p ~/automate
	echo "- Backup Folder Created: ~/automate"
	cp project_backup.json ~/automate/
	echo "- Copied sample project_backup.json file in ~/automate"
}

function setup_cron() {
	echo "------- CRON ----------"
	echo "- Setting UP CRON tab for backups after every $1 days"
	crontab -l > cronfile
	echo "0 0 */$1 * * $PWD/runner" >> cronfile
	crontab cronfile
	rm cronfile
}

function display_command() {
	echo "===> $1"
}

function install_expect() {
	echo "- Trying to install expect"
	if [[ ! -z `which apt-get` ]]; then
		cmd="sudo apt-get install -y expect"
		display_command $cmd
		$cmd
	elif [[ ! -z `which yum` ]]; then
		cmd="sudo yum install -y expect"
		display_command $cmd
		$cmd
	elif [[ ! -z `which brew` ]]; then
		cmd="brew install expect"
		display_command $cmd
		$cmd
	fi
}

function check_expect() {
	echo "-------- Checking for expect ----------"

	if [[ -z `which expect` ]]; then
		install_expect

		if [[ -z `which expect` ]]; then
			echo "- ******** Failed to install EXPECT, will not be able to backup files to Remote SERVER ***********"
		fi
	fi
}

cronSetup="no"
cronDays="3"
while [[ $# -ge 1 ]]
do
	key="$1"

	case $key in
		-c|--cron)
		    cronSetup="$2"
		    shift
		    ;;
		-d|--days)
			cronDays="$2"
			shift
			;;
		-h|--help)
			cat <<- EOF
			Usage ./install --cron yes --days 4

			Available Options:
			--cron 		-c 	yes|no 		Whether Cron should be executed
			--days 		-d 	int 		No of days after which the cron should be executed

			To Take the Backup Manually do
			./runner
			EOF
			exit
			;;
		*)
			echo "Help DOC ./install --help"
			exit
		   	;;
	esac
	shift # past argument or value
done

check_expect

make_executable
create_folders

# Setup cron if required
cronSetup=$(echo $cronSetup | tr [A-Z] [a-z])
if [[ $cronSetup == "yes" || $cronSetup == "y" ]]; then
	setup_cron $cronDays
else
	echo "-------- INFO ---------"
	echo "- Cron was not installed by the USER"
fi

# Installation complete