- add helpers/update-rc.d script

helpers/update-rc.d

@@ -0,0 +1,258 @@
+#!/bin/sh
+#
+# update-rc.d	Update the links in /etc/rc[0-9S].d/
+#
+# (c) 2003, 2004 Phil Blundell <pb@handhelds.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+initd="/etc/init.d"
+etcd="/etc/rc"
+notreally=0
+force=0
+dostart=0
+verbose=0
+
+usage()
+{
+	cat >&2 <<EOF
+usage: update-rc.d [-n] [-f] [-r <root>] <basename> remove
+       update-rc.d [-n] [-r <root>] [-s] <basename> defaults [NN | sNN kNN]
+       update-rc.d [-n] [-r <root>] [-s] <basename> start|stop NN runlvl [runlvl] [...] .
+		-n: not really
+		-f: force
+		-v: verbose
+		-r: alternate root path (default is /)
+		-s: invoke start methods if appropriate to current runlevel
+EOF
+}
+
+checklinks()
+{
+	local i dn fn remove=0
+	if [ "x$1" = "xremove" ]; then
+		echo " Removing any system startup links for $bn ..."
+		remove=1
+	fi
+
+	for i in 0 1 2 3 4 5 6 7 8 9 S; do
+		dn="${etcd}${i}.d"
+		if [ ! -d $dn ]; then
+			continue;
+		fi
+		for f in ${dn}/[SK]??${bn}; do
+			if [ -L $f ]; then
+				if [ $remove -eq 0 ]; then
+					return 1
+				fi
+				echo "  $f"
+				if [ $notreally -eq 1 ]; then
+					continue
+				fi
+				rm $f
+			fi
+		done
+	done
+
+	return 0
+}
+
+dolink()
+{
+	startstop=$1
+	lev=`echo $2 | cut -d/ -f1`
+	nn=`echo $2 | cut -d/ -f2`
+	fn="${etcd}${lev}.d/${startstop}${nn}${bn}"
+	[ $verbose -eq 1 ] && echo "  $fn -> ../init.d/$bn"
+	if [ $notreally -eq 0 ]; then
+		mkdir -p `dirname $fn`
+		ln -s ../init.d/$bn $fn
+	fi
+	if [ $dostart -eq 1 ] && [ $startstop = "S" ] && [ $lev = $RUNLEVEL ]; then
+		$fn start || true
+	fi
+}
+
+makelinks()
+{
+	if ! checklinks; then
+		echo " System startup links for $initd/$bn already exist."
+		if [ $dostart -eq 1 ] && [ $notreally -eq 0 ] && [ -L ${etcd}${RUNLEVEL}.d/S??${bn} ]; then
+			${etcd}${RUNLEVEL}.d/S??${bn} restart || true
+		fi
+		exit 0
+	fi
+
+	echo " Adding system startup for $initd/$bn."
+
+	for i in $startlinks; do
+		dolink S $i
+	done
+	for i in $stoplinks; do
+		dolink K $i
+	done
+}
+
+while [ $# -gt 0 ]; do
+	case $1 in
+		-n)	notreally=1
+			shift
+			continue
+			;;
+		-v)	verbose=1
+			shift
+			continue
+			;;
+		-f)	force=1
+			shift
+			continue
+			;;
+		-s)	dostart=1
+			shift
+			continue
+			;;
+		-r)	shift
+			root=$1
+			initd="${root}${initd}"
+			etcd="${root}${etcd}"
+			shift
+			;;
+		-h | --help)
+			usage
+			exit 0
+			;;
+		-*)
+			usage
+			exit 1
+			;;
+		*)
+			break
+			;;
+	esac
+done
+
+if [ $# -lt 2 ]; then
+	usage
+	exit 1
+fi
+
+bn=$1
+shift
+
+sn=$initd/$bn
+if [ -L "$sn" -a -n "$root" ]; then
+	if which readlink >/dev/null; then
+		while true; do
+			linksn="$(readlink "$sn")"
+			if [ -z "$linksn" ]; then
+				break
+			fi
+
+			sn="$linksn"
+			case "$sn" in
+				/*) sn="$root$sn" ;;
+				*)  sn="$initd/$sn" ;;
+			esac
+		done
+	else
+		echo "update-rc.d: readlink tool not present, cannot check whether \
+				$sn symlink points to a valid file." >&2
+	fi
+fi
+
+if [ $1 != "remove" ]; then
+	if [ ! -f "$sn" ]; then
+		echo "update-rc.d: $initd/$bn: file does not exist" >&2
+		exit 1
+	fi
+else
+	if [ -f "$sn" ]; then
+		if [ $force -eq 1 ]; then
+			echo "update-rc.d: $initd/$bn exists during rc.d purge (continuing)" >&2
+		else
+			echo "update-rc.d: $initd/$bn exists during rc.d purge (use -f to force)" >&2
+			exit 1
+		fi
+	fi
+fi
+
+if [ $dostart -eq 1 ]; then
+	#RUNLEVEL=`sed 's/.*\[\(.*\)\]/\1/' < /proc/1/cmdline`
+	RUNLEVEL=`runlevel | cut -d" " -f2`
+	if [ "x$RUNLEVEL" = "x" ]; then
+		echo "Unable to determine current runlevel" >&2
+		exit 1
+	fi
+fi
+
+case $1 in
+	remove)
+		checklinks "remove"
+		;;
+
+	defaults)
+		if [ $# -gt 3 ]; then
+			echo "defaults takes only one or two arguments" >&2
+			usage
+			exit 1
+		fi
+		start=20
+		stop=20
+		if [ $# -gt 1 ]; then
+			start=$2
+			stop=$2
+		fi
+		if [ $# -gt 2 ]; then
+			stop=$3
+		fi
+		start=`printf %02d $start`
+		stop=`printf %02d $stop`
+		stoplinks="0/$stop 1/$stop 6/$stop"
+		startlinks="2/$start 3/$start 4/$start 5/$start"
+		makelinks
+		;;
+
+	start | stop)
+		while [ $# -gt 0 ]; do
+			if [ $1 = "start" ]; then
+				letter=S
+			elif [ $1 = "stop" ]; then
+				letter=K
+			else
+				echo "expected start or stop" >&2
+				usage
+				exit 1
+			fi
+			shift
+			NN=`printf %02d $(expr $1 + 0)`
+			shift
+			while [ "x$1" != "x." ]; do
+				if [ $# -eq 0 ]; then
+					echo "action with list of runlevels not terminated by \`.'" >&2
+					exit 1
+				fi
+				level=$1
+				shift
+				case $letter in
+					S) startlinks="$startlinks $level/$NN" ;;
+					K) stoplinks="$stoplinks $level/$NN" ;;
+				esac
+			done
+			shift
+		done
+		makelinks
+		;;
+
+	*)
+		usage
+		exit 1
+		;;
+esac

make/environment-build.mk

@@ -230,6 +230,7 @@ endef
 GET-GIT-ARCHIVE = $(HELPERS_DIR)/get-git-archive.sh
 GET-GIT-SOURCE  = $(HELPERS_DIR)/get-git-source.sh
 GET-SVN-SOURCE  = $(HELPERS_DIR)/get-svn-source.sh
+UPDATE-RC.D     = $(HELPERS_DIR)/update-rc.d -r $(TARGET_DIR)
 
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