install

#!/bin/bash
#===================================================================================
# BUNSENLABS POSTINSTALL SCRIPT
# FILE: install
# DESCRIPTION: find and exec .sh scripts from bunsen-scripts project
# AUTHOR: Leonardo Marco
# VERSION: 1.0
# CREATED: 2018.05.10
#===================================================================================

#=== FUNCTION ======================================================================
# NAME: help
# DESCRIPTION: Show command help
#===================================================================================
function help() {
	echo -e 'Install configs and themes scripts in BunsenLabs '"$bunsen_ver"'
Usage: '$(basename $0)' [-h] [-l] [-a <actions>] [-y] [-d]
   \e[1m-l\e[0m\t\tOnly list actions 
   \e[1m-a <actions>\e[0m\tOnly do selected actions (e.g: -a 5,6,10-15)
   \e[1m-y\e[0m\t\tAuto-answer yes to all actions
   \e[1m-d\e[0m\t\tAuto-answer default to all actions
   \e[1m-h\e[0m\t\tShow this help'
	exit 0
}


#=== FUNCTION ======================================================================
# NAME: ask_action
# DESCRIPTION: ask for a action and determine if do it or not do
# EXIT CODE: 
#	0-> do the action
#	1-> dont do de action
#===================================================================================
n=0
function ask_action() {
	action="$1"
	info="$2"
	default="${3,,}"; default="${default:0:1}"; 
	[ "$default" != "n" ] && default="y"
	n=$((n+1))

	# Skip action if not in -a
	[ "$actions" ] && { echo "$actions" | grep -w "$n" &> /dev/null || return 1; } 
	
	
	[ "$list" ] && echo -e "[$n] $action ($default)" && return 1

	# Show action 
	[ "${default,,}" = "y" ] && q="(Y/n)?" || q="(y/N))?"
	echo -en "\n\e[33m${info}\n\e[39m\e[1m[$n] \e[4m${action}\e[0m $q "
	
	case "$yes" in
		allyes) 	q="y"; echo	"$q"					;;
		default) 	q="$default"; echo "$q"				;;
		*)	 		read q; q="${q,,}"; q="${q:0:1}"	;;
	esac
	
	[ "$q" != "n" ] && [ "$q" != "y" ] && q="$default"
	[ "${q,,}" != "n" ] && return 0
	return 1
}



#=== PARAMS ========================================================================
while getopts ":hlyda:" o; do
	case "$o" in
	h)	help 			;;
	l)	list="true"		;;
	y)	yes="allyes"	;;
	d)	yes="default"	;;
	a)	for a in $(echo "$OPTARG" | tr "," " "); do
			# Is a range
			echo "$a" | grep -E "[0-9]"*-"[0-9]" &> /dev/null && actions="$actions $(eval echo {$(echo $a|sed "s/-/../")})"
			# Is a number 
			[ "$a" -eq 0 ] &>/dev/null; [ $? -le 1 ] && actions="$actions $a"
		done			
		;;
	esac
done


#=== CHECKS =======================================================================
[ ! "$list" ] && [ "$(id -u)" -ne 0 ] && echo "Administrative privileges needed" && exit 1
if ! cat /etc/*release | grep -i bunsenlabs &> /dev/null; then
	echo "Seems you are not running BunsenLabs distro"
	echo "Some actions may fail. Cross your fingers and press enter..."
	read
fi


#=== EXEC-ACTIONS ==================================================================
base_dir="$(dirname "$(readlink -f "$0")")"
n=0

# For each .sh file
IFS=$'\n\t'
for script in $(ls "$base_dir"/*/*.sh); do
	head="$(head -10 "$script")"
	# Get ACTION field:
	action="$(echo "$head" | grep "#[[:blank:]]*ACTION:" | sed 's/#[[:blank:]]*ACTION:[[:blank:]]*//')"
	[ ! "$action" ] && continue
	# Get INFO field:
	info="$(echo "$head" | grep "#[[:blank:]]*INFO:" | sed 's/#[[:blank:]]*INFO:[[:blank:]]*//')"
	# Get DEFAULTfield:
	default="$(echo "$head" | grep "#[[:blank:]]*DEFAULT:" | sed 's/#[[:blank:]]*DEFAULT:[[:blank:]]*//')"

	if ask_action "$action" "$info" "$default"; then
		bash "$script"		# EXEC SCRIPT
	fi
done

if [ ! "$list" ] && [ ! "$actions" ] && ask_action "Reboot" "" "n"; then 
	reboot
fi
echo