#!/bin/sh
#
# $FreeBSD: head/sysutils/daemontools-encore/files/svscan.in 395753 2015-09-01 13:50:53Z knu $
#

# PROVIDE: svscan
# REQUIRE: %%SVSCAN_REQUIRE%%
# BEFORE: %%SVSCAN_BEFORE%%
# KEYWORD: shutdown

# Define these svscan_* variables in one of these files:
#       /etc/rc.conf
#       /etc/rc.conf.local
#       /etc/rc.conf.d/svscan
#
# svscan_enable		Set to "YES" to run svscan.
# svscan_servicedir	The directory containing the various service.
#			directories to be monitored.  Professor Daniel J.
#			Bernstein recommends "/service", but the FreeBSD
#			port has a default of "/var/service" instead, which
#			is consistent with the FreeBSD filesystem hierarchy
#			guidelines as described in the hier(7) manual page.
# svscan_logdir		If set, then svscan will not log its output through
#			readproctitle, but through multilog instead, and
#			the logs will be placed in the specified directory.
#			The FreeBSD port default is to run svscan through
#			readproctitle.
# svscan_lognum		The number of logfiles that multilog will keep if
#			svscan_logdir is set; the multilog default is 10.
# svscan_logmax		The maximum logfile size for multilog if svscan_logdir
#			is set; the multilog default is 99999.

# It would really, really be a Good Thing(tm) for you to enable some
# of the below control variables and the apropriate ulimit.
# These are only examples.
# Furthermore, you should think about additional limits you might need.
# Or, check login.conf(5) for a suitable alternative.
# If you want to use these examples, please place into /etc/rc.conf.d/svscan.
#
# I really do suggest you use /var/service as your service spool directory.
# Check hier(7) for reasons.

# 10 Mb
#MINSEGMENT=10240
# 20 Mb
#MAXSEGMENT=20480
# 10 Mb
#MAXFILESIZE=10240
# 100
#MAXFD=100
# 40
#MAXCHILD=40

# ulimits
#ulimit -d ${MINSEGMENT}
#ulimit -f ${MAXFILESIZE}
#ulimit -m ${MAXSEGMENT}
#ulimit -n ${MAXFD}
#ulimit -s ${MINSEGMENT}
#ulimit -u ${MAXCHILD}

. /etc/rc.subr

name="svscan"
rcvar=svscan_enable
command="%%PREFIX%%/bin/svscan"

#
# DO NOT CHANGE THESE DEFAULT VALUES HERE
#
svscan_enable=${svscan_enable-"NO"}
svscan_servicedir=${svscan_servicedir-"/var/service"}

start_cmd="svscan_start"
stop_postcmd="svscan_stop_post"

load_rc_config $name

required_dirs="${svscan_servicedir}"
if [ -n "${svscan_logdir}" ]; then
	required_dirs="${required_dirs} ${svscan_logdir}"
fi

svscan_start () {
	echo "Starting svscan."
	EP="/usr/bin/env \
	PATH=%%PREFIX%%/sbin:%%PREFIX%%/bin:/usr/sbin:/usr/bin:/sbin:/bin"
	if [ -z "${svscan_logdir}" ]; then
		${EP} /usr/sbin/daemon /bin/sh -c "$command $svscan_servicedir 2>&1 | %%PREFIX%%/bin/readproctitle service errors: ................................................................................................................................................................................................................................................................................................................................................................................................................ &" > /dev/null
	else
		logmax=${svscan_logmax+s$svscan_logmax}
		lognum=${svscan_lognum+n$svscan_lognum}
		${EP} /usr/sbin/daemon /bin/sh -c "$command $svscan_servicedir 2>&1 \
		| %%PREFIX%%/bin/multilog t $logmax $lognum '${svscan_logdir}' &" > /dev/null
	fi
}

svscan_stop_post () {
	find -L "$svscan_servicedir" -mindepth 1 -maxdepth 2 -type d -name '[^.]*' \( \! -path "$svscan_servicedir/*/*" -or -name 'log' \) -print0 | xargs -0 %%PREFIX%%/bin/svc -dx
}

run_rc_command "$1"