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#!/bin/sh
# shutdown - shutdown(8) lookalike for runit
single() {
runsvchdir single
}
abort() {
echo "$@" >&2
exit 1
}
usage() {
abort "Usage: ${0##*/} [-fF] [-kchPr] time [warning message]"
}
action=single
while getopts akrhPHfFnct: opt; do
case "$opt" in
a|n|H) abort "'-$opt' is not implemented";;
t) ;;
f) touch /fastboot;;
F) touch /forcefsck;;
k) action=true;;
c) action=cancel;;
h|P) action=halt;;
r) action=reboot;;
[?]) usage;;
esac
done
shift $((OPTIND - 1))
[ $# -eq 0 ] && usage
time=$1; shift
message="${*:-system is going down}"
if [ "$action" = "cancel" ]; then
kill $(cat /run/runit/shutdown.pid)
echo "${*:-shutdown cancelled}" | wall
exit
fi
touch /run/runit/shutdown.pid 2>/dev/null || abort "Not enough permissions to execute ${0#*/}"
echo $$ >/run/runit/shutdown.pid
case "$time" in
now) time=0;;
+*) time=${time#+};;
*:*) abort "absolute time is not implemented";;
*) abort "invalid time";;
esac
if [ "$time" -gt 5 ]; then
echo "$message in $time minutes" | wall
printf "shutdown: sleeping for $time minutes... "
sleep $(((time - 5) * 60))
printf "\n"
time=5
fi
if [ "$time" -gt 0 ]; then
echo "$message in $time minutes" | wall
touch /etc/nologin
printf "shutdown: sleeping for $time minutes... "
sleep $((time * 60))
printf "\n"
rm /etc/nologin
fi
echo "$message NOW" | wall
$action
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