runit-scripts/3

#!/bin/sh --

PATH=/sbin:/usr/sbin:/bin:/usr/bin

self="$(realpath "$0")"
self="${self%/*}"

[ -r "${self}/rc" ] && . "${self}/rc"
[ -r "${self}/functions/core" ] && . "${self}/functions/core"
: "${SVDIR:=/var/service}"
[ -f /run/runit/printk ] && >/proc/sys/kernel/printk cat /run/runit/printk

(
cd "${SVDIR}" || return
msg 'Waiting for getties to stop...'
sv -w 10 force-shutdown ./getty-*

msg 'Waiting for services to stop...'
sv force-stop ./*
sv exit       ./*
)

for f in /etc/runit/shutdown-services/*.sh; do
	[ -f "$f" ] && . "$f"
done

halt -w

msg 'Sending TERM signal to processes...'
pkill --inverse -s0,1 -TERM
sleep 0.5
msg 'Sending KILL signal to processes...'
pkill --inverse -s0,1 -KILL

msg 'Unmounting filesystems, disabling swap...'
swapoff -a
umount -r -a -t nosysfs,noproc,nodevtmpfs,notmpfs
msg 'Remounting rootfs read-only...'
mount -o remount,ro /


sync; sync
for crypt in /sys/block/*/dm/uuid; do
	IFS=- read -r dm_type _ _ dm_name < "${crypt}"
	[ "${dm_type}" = CRYPT ] && cryptsetup close --deferred "${dm_name}"
done


msg 'Shutdown...'
sleep 1
if [ -e /etc/runit/reboot ] && command -v kexec >/dev/null; then
	msg "Triggering kexec..."
	kexec -e 2>/dev/null
	# not reached when kexec was successful.
fi