poky/meta/recipes-core/systemd/systemd-systemctl/systemctl

#!/bin/sh echo "Started $0 $*"

ROOT=

parse command line params

action= while [ $# != 0 ]; do opt="$1"

case "$opt" in
	enable)
		shift

		action="$opt"
		services="$1"
		cmd_args="1"
		shift
		;;
	disable)
		shift

		action="$opt"
		services="$1"
		cmd_args="1"
		shift
		;;
	mask)
		shift

		action="$opt"
		services="$1"
		cmd_args="1"
		shift
		;;
	preset)
		shift

		action="$opt"
		services="$1"
		cmd_args="1"
		shift
		;;
	--root=*)
		ROOT=${opt##--root=}
		cmd_args="0"
		shift
		;;
	*)
		if [ "$cmd_args" = "1" ]; then
			services="$services $opt" 
			shift
		else
			echo "'$opt' is an unkown option; exiting with error"
			exit 1
		fi
		;;
esac

done if [ "$action" = "preset" -a "$service_file" = "" ]; then services=$(for f in find $ROOT/etc/systemd/system $ROOT/lib/systemd/system $ROOT/usr/lib/systemd/system -type f 2>1; do basename $f; done) services="$services $opt" presetall=1 fi

for service in $services; do if [ "$presetall" = "1" ]; then action="preset" fi if [ "$action" = "mask" ]; then if [ ! -d $ROOT/etc/systemd/system/ ]; then mkdir -p $ROOT/etc/systemd/system/ fi cmd="ln -s /dev/null $ROOT/etc/systemd/system/$service" echo "$cmd" $cmd exit 0 fi

service_base_file=`echo $service | sed 's/\(@\).*\(\.[^.]\+\)/\1\2/'`
if [ -z `echo $service | sed '/@/p;d'` ]; then
	echo "Try to find location of $service..."
	service_template=false
else
	echo "Try to find location of template $service_base_file of instance $service..."
	service_template=true
	if [ -z `echo $service | sed 's/^.\+@\(.*\)\.[^.]\+/\1/'` ]; then
		instance_specified=false
	else
		instance_specified=true
	fi
fi

# find service file
for p in $ROOT/etc/systemd/system \
	 $ROOT/lib/systemd/system \
	 $ROOT/usr/lib/systemd/system; do
	if [ -e $p/$service_base_file ]; then
		service_file=$p/$service_base_file
		service_file=${service_file##$ROOT}
	fi
done
if [ -z "$service_file" ]; then
	echo "'$service_base_file' couldn't be found; exiting with error"
	exit 1
fi
echo "Found $service in $service_file"

# If any new unit types are added to systemd they should be added
# to this regular expression.
unit_types_re='\.\(service\|socket\|device\|mount\|automount\|swap\|target\|path\|timer\|snapshot\)\s*$'
if [ "$action" = "preset" ]; then
	action=`egrep -sh  $service $ROOT/etc/systemd/user-preset/*.preset | cut -f1 -d' '`
	if [ -z "$action" ]; then
		globalpreset=`egrep -sh  '\*'  $ROOT/etc/systemd/user-preset/*.preset | cut -f1 -d' '`
		if [ -n "$globalpreset" ]; then
			action="$globalpreset"
		else
			action="enable"
		fi
	fi
fi
# create the required symbolic links
wanted_by=$(sed '/^WantedBy[[:space:]]*=/s,[^=]*=,,p;d' "$ROOT/$service_file" \
	        | tr ',' '\n' \
	        | grep "$unit_types_re")

required_by=$(sed '/^RequiredBy[[:space:]]*=/s,[^=]*=,,p;d' "$ROOT/$service_file" \
	        | tr ',' '\n' \
	        | grep "$unit_types_re")

for dependency in WantedBy RequiredBy; do
	if [ "$dependency" = "WantedBy" ]; then
		suffix="wants"
		dependency_list="$wanted_by"
	elif [ "$dependency" = "RequiredBy" ]; then
		suffix="requires"
		dependency_list="$required_by"
	fi
	for r in $dependency_list; do
		echo "$dependency=$r found in $service"
		if [ "$action" = "enable" ]; then
			enable_service=$service
			if [ "$service_template" = true -a "$instance_specified" = false ]; then
				default_instance=$(sed '/^DefaultInstance[[:space:]]*=/s,[^=]*=,,p;d' "$ROOT/$service_file")
				if [ -z $default_instance ]; then
					echo "Template unit without instance or DefaultInstance directive, nothing to enable"
					continue
				else
					echo "Found DefaultInstance $default_instance, enabling it"
					enable_service=$(echo $service | sed "s/@/@$(echo $default_instance | sed 's/\\/\\\\/g')/")
				fi
			fi
			mkdir -p $ROOT/etc/systemd/system/$r.$suffix
			ln -s $service_file $ROOT/etc/systemd/system/$r.$suffix/$enable_service
			echo "Enabled $enable_service for $r."
		else
			if [ "$service_template" = true -a "$instance_specified" = false ]; then
				disable_service="$ROOT/etc/systemd/system/$r.$suffix/`echo $service | sed 's/@/@*/'`"
			else
				disable_service="$ROOT/etc/systemd/system/$r.$suffix/$service"
			fi
			rm -f $disable_service
			[ -d $ROOT/etc/systemd/system/$r.$suffix ] && rmdir --ignore-fail-on-non-empty -p $ROOT/etc/systemd/system/$r.$suffix
			echo "Disabled ${disable_service##$ROOT/etc/systemd/system/$r.$suffix/} for $r."
		fi
	done
done

# create the required symbolic 'Alias' links
alias=$(sed '/^Alias[[:space:]]*=/s,[^=]*=,,p;d' "$ROOT/$service_file" \
	        | tr ',' '\n' \
	        | grep "$unit_types_re")

for r in $alias; do
	if [ "$action" = "enable" ]; then
		mkdir -p $ROOT/etc/systemd/system
		ln -s $service_file $ROOT/etc/systemd/system/$r
		echo "Enabled $service for $alias."
	else
		rm -f $ROOT/etc/systemd/system/$r
		echo "Disabled $service for $alias."
	fi
done

# call us for the other required scripts
also=$(sed '/^Also[[:space:]]*=/s,[^=]*=,,p;d' "$ROOT/$service_file" \
	   | tr ',' '\n')
for a in $also; do
	echo "Also=$a found in $service"
	if [ "$action" = "enable" ]; then
		$0 --root=$ROOT enable $a
	fi
done

done