main/haserl: modernize

- Use default_prepare instead of custom patch logic
- Use builddir
- Use amove
- Remove unused variable in _split

main/haserl/APKBUILD

@@ -22,21 +22,16 @@ source="https://downloads.sourceforge.net/haserl/haserl-$pkgver.tar.gz"
 #   0.9.36-r0:
 #     - CVE-2021-29133
 
-_sdir="$srcdir"/$pkgname-$pkgver
 prepare() {
-	cd "$_sdir"
-	for i in $source; do
-		case $i in
-		*.patch) msg $i; patch -p1 -i "$srcdir"/$i;;
-		esac
-	done
+	default_prepare
+
 	sed -i -e 's/^        /\t/' src/Makefile.am
 	rm -f src/haserl_lualib.inc
 
 	aclocal && autoconf && autoheader && automake --add-missing
 
 	for _i in $_luaversions; do
-		cp -r "$_sdir" "$srcdir"/build-$_i
+		cp -r "$builddir" "$srcdir"/build-$_i
 	done
 }
 
@@ -63,14 +58,12 @@ package() {
 }
 
 _split() {
-	local d= _ver=$1
+	local _ver=$1
 	pkgdesc="Html And Shell Embedded Report Language with Lua $_ver support"
 	replaces="$pkgname"
 	depends=
-	if [ -f "$pkgdir"/usr/bin/haserl-lua$_ver ]; then
-		mkdir -p "$subpkgdir"/usr/bin
-		mv "$pkgdir"/usr/bin/haserl-lua$_ver "$subpkgdir"/usr/bin/
-	fi
+
+	amove usr/bin/haserl-lua$_ver
 }
 
 for _i in $_luaversions; do