abuild: treat subpackages items as colon separated lists

This is in preparation to support subpackages="pkg:split:arch"
syntax, and just makes the current code ignore anything after
the second colon if it exists. This allows to use the new syntax
in aports git without running experimental abuild on the official
builders.

abuild.in

@@ -128,7 +128,7 @@ default_sanitycheck() {
 	# check so no package names starts with -
 	for i in $pkgname $subpackages; do
 		case $i in
-		-*) die "${i%:*} is not a valid package name";;
+		-*) die "${i%%:*} is not a valid package name";;
 		esac
 	done
 
@@ -444,7 +444,7 @@ cleancache() {
 listpkgnames() {
 	local i
 	for i in $pkgname $subpackages; do
-		echo ${i%:*}
+		echo ${i%%:*}
 	done
 	for i in $linguas; do
 		echo $pkgname-lang-$i
@@ -456,7 +456,7 @@ cleanpkg() {
 	getpkgver || return 1
 	msg "Cleaning built packages..."
 	for i in $(listpkgnames); do
-		local p="${i%:*}-$pkgver-r$pkgrel"
+		local p="${i%%:*}-$pkgver-r$pkgrel"
 		rm -f "$PKGDEST/$p.apk" "$PKGDEST/$p.src.tar.gz" \
 			"$abuildrepo"/$p.apk "$abuildrepo"/*/$p.apk
 	done
@@ -470,7 +470,7 @@ cleanoldpkg() {
 	getpkgver || return 1
 	msg "Cleaning all packages except $pkgver-r$pkgrel..."
 	for i in $(listpkgnames); do
-		local pn=${i%:*}
+		local pn=${i%%:*}
 		for j in "$PKGDEST"/$pn-[0-9]*.apk ; do
 			[ "$j" = "$PKGDEST/$pn-$pkgver-r$pkgrel.apk" ] \
 				&& continue
@@ -576,12 +576,15 @@ targz() {
 }
 
 get_split_func() {
-	# get the 'func' from "sub-pkg:func"
-	local func=${1##*:}
-
-	# get 'func' from "sub-pkg-func" if there was no :func
-	[ "$func" = "$1" ] && func=${func##*-}
-	echo $func
+	# get the 'func' from "sub-pkg:func:arch"
+	local _splitarch=${1#*:}
+	[ "$_splitarch" = "$1" ] && _splitarch=""
+	local _split=${_splitarch%:*}
+	if [ -z "$_split" ]; then
+		local _name=${1%%:*}
+		_split="${_name##*-}"
+	fi
+	echo $_split
 }
 
 postcheck() {
@@ -685,7 +688,7 @@ prepare_subpackages() {
 		local func=$(get_split_func $i)
 		# call abuild recursively, setting subpkg{dir,name}
 		msg "Running split function $func..."
-		local dir="$pkgbasedir/${i%:*}" name="${i%:*}"
+		local dir="$pkgbasedir/${i%%:*}" name="${i%%:*}"
 		( subpkgdir="$dir" subpkgname="$name" \
 			$0 pre_split $func prepare_package \
 			&& postcheck "$dir" "$name" ) || return 1
@@ -1652,7 +1655,7 @@ apk_up2date() {
 	local i s
 	cd "$startdir"
 	for i in $pkgname $subpackages; do
-		[ -f "$PKGDEST/${i%:*}-$pkgver-r$pkgrel.apk" ] || return 1
+		[ -f "$PKGDEST/${i%%:*}-$pkgver-r$pkgrel.apk" ] || return 1
 	done
 	[ -n "$keep" ] && return 0
 
@@ -1674,7 +1677,7 @@ abuildindex_up2date() {
 	local i
 	getpkgver || return 1
 	local dir="$abuildrepo"/$CARCH
-	local apk="${pkgname%:*}-$pkgver-r$pkgrel.apk"
+	local apk="${pkgname%%:*}-$pkgver-r$pkgrel.apk"
 	local idx="$dir"/APKINDEX.tar.gz
 	local file="$dir"/$apk
 
@@ -1959,7 +1962,7 @@ source_has() {
 subpackages_has() {
 	local i
 	for i in $subpackages; do
-		[ "$1" = "${i%:*}" ] && return 0
+		[ "$1" = "${i%%:*}" ] && return 0
 	done
 	return 1
 }
@@ -1967,7 +1970,8 @@ subpackages_has() {
 subpackage_types_has() {
 	local i
 	for i in $subpackages; do
-		[ "$1" = "${i##*-}" ] && return 0
+		local _name="${i%%:*}"
+		[ "$1" = "${_name##*-}" ] && return 0
 	done
 	return 1
 }