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#!/usr/bin/env bash
## CHECK DEPS
if ! type readlink >/dev/null 2>&1; then
printf "readlink command not found.\n"
exit 1
fi
## UTIL FUNCTIONS
reverse_array () {
unset _b
for a in $@; do
[ -n "$_b" ] && _b="$a $_b" || _b="$a"
done
echo $_b
}
## FIND INIT
INIT="$(basename $(readlink $(type init)))"
if `type s6-rc >/dev/null 2>&1`; then
S6=y
else
unset S6
fi
case "$INIT" in
"openrc-init") OPENRC=y ; unset DINIT RUNIT SYSTEMD ;;
"runit-init") RUNIT=y ; unset DINIT OPENRC SYSTEMD ;;
"systemd") SYSTEMD=y ; unset DINIT OPENRC RUNIT ;;
"*") print "Unknown init!\n"
esac
## CHECK INIT HELPER
if [ -n "$RUNIT" ]; then
if `type rsm >/dev/null 2>&1`; then
RSM=y
else
unset RSM
fi
fi
## CHECK PRIVS
if [ "$(whoami)" != "root" ]; then
ROOTCMD="sudo"
fi
## SERVICE FUNCTIONS
start_service () {
if [ -n "$S6" ]; then
$ROOTCMD s6-rc -u change $1
fi
if [ -n "$OPENRC" ]; then
$ROOTCMD rc-service $1 start
elif [ -n "$RUNIT" ]; then
if [ -n "$RSM" ]; then
$ROOTCMD rsm start $1
else
$ROOTCMD sv start $1
fi
elif [ -n "$SYSTEMD" ]; then
$ROOTCMD systemctl start $1
fi
}
stop_service () {
if [ -n "$S6" ]; then
$ROOTCMD s6-rc -d change $1
fi
if [ -n "$OPENRC" ]; then
$ROOTCMD rc-service $1 stop
elif [ -n "$RUNIT" ]; then
if [ -n "$RSM" ]; then
$ROOTCMD rsm stop $1
else
$ROOTCMD sv stop $1
fi
elif [ -n "$SYSTEMD" ]; then
$ROOTCMD systemctl stop $1
fi
}
enable_service () {
if [ -n "$S6" ]; then
$ROOTCMD s6-service add default $1
fi
if [ -n "$OPENRC" ]; then
$ROOTCMD rc-update add $1 default
elif [ -n "$RUNIT" ]; then
if [ -n "$RSM" ]; then
$ROOTCMD rsm enable $1
else
print "enabling runit services manually not presently supported; use rsm\n"
fi
elif [ -n "$SYSTEMD" ]; then
$ROOTCMD systemctl enable $1
fi
}
disable_service () {
if [ -n "$S6" ]; then
$ROOTCMD s6-service delete default $1
fi
if [ -n "$OPENRC" ]; then
$ROOTCMD rc-update del $1 default
elif [ -n "$RUNIT" ]; then
if [ -n "$RSM" ]; then
$ROOTCMD rsm disable $1
else
print "disabling runit services manually not presently supported; use rsm\n"
fi
elif [ -n "$SYSTEMD" ]; then
$ROOTCMD systemctl disable $1
fi
}
status_service () {
if [ -n "$S6" ]; then
$ROOTCMD s6-rc -a list
fi
if [ -n "$OPENRC" ]; then
$ROOTCMD rc-service status
elif [ -n "$RUNIT" ]; then
if [ -n "$RSM" ]; then
$ROOTCMD rsm status
else
print "getting status of runit services manually not presently supported; use rsm\n"
fi
elif [ -n "$SYSTEMD" ]; then
$ROOTCMD systemctl status
fi
}
## MAIN LOOP
case "$1" in
"start")
for i in "${@:2}"; do
printf "start $i\n"
start_service $i
done
;;
"stop")
for i in "${@:2}"; do
printf "stop $i\n"
stop_service $i
done
;;
"enable")
for i in "${@:2}"; do
printf "enable $i\n"
enable_service $i
done
;;
"disable")
for i in "${@:2}"; do
printf "disable $i\n"
disable_service $i
done
;;
"restart")
for i in `reverse_array ${@:2}`; do
printf "stop $i\n"
stop_service $i
done
for i in ${@:2}; do
printf "start $i\n"
start_service $i
done
;;
"status")
status_service
esac
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