fbs

#!/bin/sh
#
# Fbs - Graphical framebuffer boot using Busybox fbsplash applet. No use of SliTaz
# specific code since it may be used by other distros or emb systems.
#
# (C) 2014 Christophe Lincoln - BSD License.
#

sysconf="/etc/fbs.conf"
themes="/usr/share/fbs"
fifo="/fbs.fifo"

[ -f "${sysconf}" ] && . ${sysconf}
[ -f "fbs.conf" ] && . fbs.conf
[ "$2" ] && FBTHEME="$2"

# Functions

boldify() { 
	echo -e "\033[1m$@\033[0m"
}

usage() {
	cat << EOT

Framebuffer Boot Splash utility

$(boldify "Usage:") $(basename $0) [command] [theme]

$(boldify "Commands:")
  on            Enable graphical boot
  off           Disable graphical boot
  test          Test a splash theme
  themes        List all installed themes
  set-theme     Change current theme
  pack-theme    Pack a system theme
  add-theme     Install a fbs-theme archive

EOT
}

check_root() {
	if [ $(id -u) != "0" ]; then
		echo "Only root administrator can run fbs $1" && exit 1
	fi
}

separator() {
	echo "--------------------------------------"
}

set_theme() {
	sed -i s'~FBTHEME=.*~FBTHEME=\"$new_theme\"~' /etc/fbs.conf
}

start_fbsplash() {
	[ -x "$themes/$FBTHEME/init.sh" ] && \
		${themes}/${FBTHEME}/init.sh
	mkfifo ${fifo}
	fbsplash -c -f ${fifo} \
		-s $themes/$FBTHEME/splash.ppm.gz \
		-i $themes/$FBTHEME/splash.cfg &
}

# Commands

case "$1" in

	on)
		# Enable graphical boot
		check_root
		echo "Enabling SliTaz graphical boot..."
		if ! grep -q "rcS > /dev/null 2>/dev/null" /etc/inittab; then		
			sed -i s'#rcS#rcS >/dev/null 2>/dev/null#' /etc/inittab
		fi
		sed -i s'/FBSPLASH=.*/FBSPLASH="on"/' /etc/fbs.conf ;;
		
	off)
		# Disable graphical boot
		check_root
		echo "Disabling SliTaz graphical boot..."
		sed -i s'#rcS >/dev/null 2>/dev/null#rcS#' /etc/inittab
		sed -i s'/FBSPLASH=.*/FBSPLASH="off"/' /etc/fbs.conf ;;
	
	'test')
		# Testsuite for fbs 
		reset && start_fbsplash
		for p in 0 10 20 30 40 50 60 70 80 90 100
		do
			echo "$p" > ${fifo} && sleep 1
		done #> /dev/null
		echo "exit" > ${fifo}
		clear && rm -f ${fifo};;
	
	themes)
		# List all themes
		echo ""
		boldify "Fbs themes list"
		separator
		cd ${themes}
		ls -1 && echo "" ;;
		
	set-theme)
		check_root
		new_theme="$2"
		[ "$new_theme" ] || exit 0
		[ -d "$themes/$new_theme" ] || exit 0
		echo -n "Enabling fbs theme: $new_theme"
		set_theme; status ;;
		
	pack-theme)
		# Pack a theme into .tar.gz
		theme="$2"
		tmp=fbs-theme-$theme
		if [ ! -d "$themes/$theme" ]; then
			echo "No theme found in: $themes/$theme"; exit 0
		fi
		echo -n "Creating fbs theme archive: $theme"
		mkdir -p $tmp
		cp -r $themes/$theme $tmp
		cat > $tmp/README << EOT
Fbs theme - Framebuffer Splash boot artwork
$(separator)


This is a Busybox fbsplash theme created by $USER. To use it you can copy
files manually to $themes or use 'fbs add-theme'


$(separator)
EOT
		busybox tar czf fbs-theme-$theme.tar.gz $tmp
		rm -rf $tmp; status ;;
		
	add-theme)
		check_root
		file=$2
		if [ ! -f "$file" ]; then
			echo "Missing theme archive: $file"; exit 0
		fi
		echo -n "Installing fbs theme: ${file%.tar.gz}"
		tar xzf $file -C /tmp
		rm /tmp/fbs-theme-*/README
		cp -r /tmp/fbs-*/* ${themes}
		status ;;
		
	start) start_fbsplash ;;
	
	*) usage ;;
	
esac
exit 0