--- trunk/mage/usr/lib/mage/mage4.functions.sh	2011/04/27 08:42:24	1271
+++ trunk/mage/usr/lib/mage/mage4.functions.sh	2011/04/27 09:45:07	1273
@@ -23,6 +23,7 @@
 	local pkgtype
 	local count_current
 	local count_total
+	local tar_opts
 
 	# get count of total packages
 	declare -i count_current=0
@@ -54,8 +55,16 @@
 			continue
 		fi
 
+		# busybox?
+		if need_busybox_support tar
+		then
+			tar_opts="xjf"
+		else
+			tar_opts="xjmf"
+		fi
+
 		echo -e " ${COLBLUE}***${COLDEFAULT} unpacking (${count_current}/${count_total}): ${pkg} ... "
-		tar xjmf ${PKGDIR}/${pkg} -C ${BUILDDIR} || die "Unpacking package ${pkg}"
+		tar ${tar_opts} ${PKGDIR}/${pkg} -C ${BUILDDIR} || die "Unpacking package ${pkg}"
 	done
 
 	# add a crlf for a better view
@@ -1255,9 +1264,13 @@
 	local opt
 	local count_current
 	local count_total
+	local wget_opts
 
 	[ -z "${MIRRORS}" ] && die "You have no mirrors defined. Please edit your ${MAGERC}."
 
+	# filter wget command if busybox was found
+	wget_opts="$(busybox_filter_wget_options ${WGET_FETCH_OPTIONS})"
+
 	# get count of total packages
 	declare -i count_current=0
 	declare -i count_total=0
@@ -1303,7 +1316,7 @@
 			echo -e " fetching (${count_current}/${count_total}): ${pkg} ... "
 			[[ ${VERBOSE} = off ]] && opt="--quiet"
 			wget \
-				${WGET_FETCH_OPTIONS} \
+				${wget_opts} \
 				--directory-prefix=${PKGDIR} \
 				${opt} ${mirr}/${PACKAGES_SERVER_PATH}/${pkg}
 			if [[ $? = 0 ]]
@@ -1357,6 +1370,7 @@
 	local temp="$(mktemp -d)"
 	local mirr mymirr
 	local opt
+	local tar_opts
 
 	# try to get the md5 marked as latest on the server
 	latest_md5="mage-latest.md5"
@@ -1400,7 +1414,7 @@
 		else
 			echo -ne "${COLBLUE} --- ${COLDEFAULT}"
 			echo -n "checking md5sum... "
-			( cd ${temp}; md5sum --check ${latest_md5} ) || die "md5 for ${latest_tarball} failed"
+			( cd ${temp}; md5sum -c ${latest_md5} ) || die "md5 for ${latest_tarball} failed"
 		fi
 
 		if [[ -d ${MAGEDIR} ]]
@@ -1410,10 +1424,17 @@
 			rm -rf ${MAGEDIR}
 		fi
 
+		if need_busybox_support tar
+		then
+			tar_opts="xjf"
+		else
+			tar_opts="xjmf"
+		fi
+
 		echo -ne "${COLBLUE} --- ${COLDEFAULT}"
 		echo "updating mage-tree from tarball ..."
 		# unpack in dirname of MAGEDIR, as the tarball has already the mage
-		tar xjmf ${temp}/${latest_tarball} -C ${MAGEDIR%/*} || die "Unpacking tarball"
+		tar ${tar_opts} ${temp}/${latest_tarball} -C ${MAGEDIR%/*} || die "Unpacking tarball"
 
 		if [[ -d ${temp} ]]
 		then
@@ -2595,7 +2616,7 @@
 		then
 			echo -ne "${COLBLUE} *** ${COLDEFAULT}"
 			echo -ne "checking md5sum (${count_current}/${count_total}): "
-			( cd ${PKGDIR}; md5sum --check ${md5file}) || die "md5 for ${pkgfile} failed"
+			( cd ${PKGDIR}; md5sum -c ${md5file}) || die "md5 for ${pkgfile} failed"
 		else
 			echo -ne "${COLBLUE} --- ${COLDEFAULT}"
 			echo -e "!! no md5sum file found for ${pkgfile} :("
@@ -3043,3 +3064,55 @@
 	return 0
 }
 
+# need_busybox_support ${cmd}
+# return 0 (no error = needs busybox support) or return 1 (error = no busybox support required)
+need_busybox_support()
+{
+	local cmd
+	cmd="$1"
+
+	if [[ -x /bin/busybox ]]
+	then
+		if [[ $(readlink $(which ${cmd})) = /bin/busybox ]]
+		then
+			# needs busybox support
+			return 0
+		else
+			# no busybox
+			return 1
+		fi
+	fi
+}
+
+# busybox_filter_wget_options ${wget_opts}
+busybox_filter_wget_options()
+{
+	local opts="$@"
+	local i
+	local fixed_opts
+
+	if need_busybox_support wget
+	then
+		for i in ${opts}
+		do
+			# show only the allowed ones
+			case ${i} in
+				-c|--continue) fixed_opts+=" -c" ;;
+				-s|--spider) fixed_opts+=" -s" ;;
+				-q|--quiet) fixed_opts+=" -q" ;;
+				-O|--output-document) shift; fixed_opts+=" -O $1" ;;
+				--header) shift; fixed_opts+=" --header $1" ;;
+				-Y|--proxy) shift; fixed_opts+=" -Y $1" ;;
+				-P) shift; fixed_opts+=" -P $1" ;;
+				--no-check-certificate) fixed_opts+=" --no-check-certificate ${i}" ;;
+				-U|--user-agent) shift; fixed_opts+=" -U ${i}" ;;
+				# simply drop all other opts
+				*) continue ;;
+			esac
+		done
+
+		echo "${fixed_opts}"
+	else
+		echo "${opts}"
+	fi
+}