From ab2f10b496660a90dc28cd22df4f06429d531f99 Mon Sep 17 00:00:00 2001
From: ajacoutot <ajacoutot@openbsd.org>
Date: Wed, 24 Dec 2014 13:04:43 +0000
Subject: [PATCH] Implement some kind ordering in the startup of package script
 daemons. 'rcctl order ...' will prepend the daemon(s) given as argument to
 the pkg_scripts line (it can be all daemons, some, or just one). Without
 argument, it'll display the current order.

While here, drop a couple of examples from the man page to only leave
the most interesting one.

ok schwarze@ rpe@ (with tweaks) jasper@ robert@ sthen@
---
 usr.sbin/rcctl/rcctl.8  | 41 +++++++++++----------------------
 usr.sbin/rcctl/rcctl.sh | 51 ++++++++++++++++++++++++++++++++++-------
 2 files changed, 57 insertions(+), 35 deletions(-)

diff --git a/usr.sbin/rcctl/rcctl.8 b/usr.sbin/rcctl/rcctl.8
index df07c83509e..a854553d3f4 100644
--- a/usr.sbin/rcctl/rcctl.8
+++ b/usr.sbin/rcctl/rcctl.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: rcctl.8,v 1.10 2014/10/13 14:12:57 schwarze Exp $
+.\"	$OpenBSD: rcctl.8,v 1.11 2014/12/24 13:04:43 ajacoutot Exp $
 .\"
 .\" Copyright (c) 2014 Antoine Jacoutot <ajacoutot@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: October 13 2014 $
+.Dd $Mdocdate: December 24 2014 $
 .Dt RCCTL 8
 .Os
 .Sh NAME
@@ -24,9 +24,9 @@
 .Nm rcctl
 .Op Fl df
 .Sm off
-.Cm enable | disable | status | default | Ar action
+.Cm enable | disable | status | default | order | Ar action
 .Sm on
-.Op Ar service | daemon Op Cm flags Op Ar arguments
+.Op Ar service | daemon Oo Cm flags Oo Ar arguments Oc Oc | Ar daemons
 .Sh DESCRIPTION
 The
 .Nm
@@ -81,6 +81,16 @@ For a daemon, display the flags that will be used if
 is called without
 .Ar arguments .
 For a base system service, display whether it is enabled by default.
+.It Cm order Op Ar daemons
+Order
+.Sy enabled
+.Xr packages 7
+daemons startup by prepending
+.Ar daemons
+to the pkg_scripts line.
+If
+.Ar daemons
+is empty, display the current order.
 .It Oo Fl df Oc Ar action daemon
 Run the
 .Xr rc.d 8
@@ -107,17 +117,6 @@ utility exits 0 on success, and >0 if an error occurs
 .Ar service
 .Pc .
 .Sh EXAMPLES
-Disable
-.Xr ntpd 8
-and check its status:
-.Bd -literal -offset indent
-# rcctl disable ntpd
-# rcctl status ntpd
-NO
-# echo $?
-1
-.Ed
-.Pp
 Enable and set
 .Xr ntpd 8
 flags:
@@ -128,18 +127,6 @@ flags:
 # echo $?
 0
 .Ed
-.Pp
-Start
-.Xr ntpd 8
-and check that it is running:
-.Bd -literal -offset indent
-# rcctl start ntpd
-ntpd(ok)
-# rcctl check ntpd
-ntpd(ok)
-# echo $?
-0
-.Ed
 .Sh SEE ALSO
 .Xr rc.conf.local 8 ,
 .Xr rc.d 8
diff --git a/usr.sbin/rcctl/rcctl.sh b/usr.sbin/rcctl/rcctl.sh
index b844fb6e40d..e4ae59818cc 100644
--- a/usr.sbin/rcctl/rcctl.sh
+++ b/usr.sbin/rcctl/rcctl.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $OpenBSD: rcctl.sh,v 1.50 2014/12/23 10:07:44 ajacoutot Exp $
+# $OpenBSD: rcctl.sh,v 1.51 2014/12/24 13:04:43 ajacoutot Exp $
 #
 # Copyright (c) 2014 Antoine Jacoutot <ajacoutot@openbsd.org>
 # Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -27,8 +27,8 @@ _rc_parse_conf
 
 usage()
 {
-	_rc_err "usage: ${0##*/} [-df] enable|disable|status|default|action
-             [service | daemon [flags [arguments]]]"
+	_rc_err "usage: ${0##*/} [-df] enable|disable|status|default|order|action
+             [service | daemon [flags [arguments]] | daemons]"
 }
 
 needs_root()
@@ -202,6 +202,28 @@ append_to_pkg_scripts()
 	rcconf_edit_end
 }
 
+order_pkg_scripts()
+{
+	local _svcs="$*"
+	[ -n "${_svcs}" ] || return
+
+	needs_root ${action}
+	local _pkg_scripts _svc
+	for _svc in ${_svcs}; do
+		if svc_is_base ${_svc} || svc_is_special ${_svc}; then
+			_rc_err "${0##*/}: ${_svc} is not a pkg script"
+		elif ! svc_is_enabled ${_svc}; then
+			_rc_err "${0##*/}: ${_svc} is not enabled"
+		fi
+	done
+	_pkg_scripts=$(echo "${_svcs} ${pkg_scripts}" | tr "[:blank:]" "\n" | \
+		     awk -v ORS=' ' '!x[$0]++')
+	rcconf_edit_begin
+	grep -v "^pkg_scripts.*=" /etc/rc.conf.local >${_TMP_RCCONF}
+	echo pkg_scripts=${_pkg_scripts} >>${_TMP_RCCONF}
+	rcconf_edit_end
+}
+
 rm_from_pkg_scripts()
 {
 	local _svc=$1
@@ -292,16 +314,21 @@ shift $((OPTIND-1))
 [ $# -gt 0 ] || usage
 
 action=$1
-svc=$2
-flag=$3
-[ $# -ge 3 ] && shift 3 || shift $#
-flags="$*"
+if [ "${action}" = "order" ]; then
+	shift 1
+	svcs="$*"
+else
+	svc=$2
+	flag=$3
+	[ $# -ge 3 ] && shift 3 || shift $#
+	flags="$*"
+fi
 
 if [ -n "${svc}" ]; then
 	if ! svc_is_avail ${svc}; then
 		_rc_err "${0##*/}: service ${svc} does not exist" 2
 	fi
-elif [ "${action}" != "default" -a "${action}" != "status" ] ; then
+elif [[ ${action} != @(default|order|status) ]] ; then
 	usage
 fi
 
@@ -339,6 +366,14 @@ case ${action} in
 			append_to_pkg_scripts ${svc}
 		fi
 		;;
+	order)
+		if [ -n "${svcs}" ]; then
+			needs_root ${action}
+			order_pkg_scripts ${svcs}
+		else
+			echo ${pkg_scripts}
+		fi
+		;;
 	status)
 		svc_get_status ${svc}
 		;;
-- 
2.20.1