testing/jruby: improve abuild

testing/jruby/APKBUILD

@@ -7,18 +7,17 @@ pkgver=9.1.2.0
 pkgrel=0
 pkgdesc="An implementation of Ruby on the JVM"
 url="http://jruby.org"
+# openjdk8 is currently built only for x86*
 arch="x86 x86_64"
 license="EPL GPL-2 LGPL-2.1 custom"
 # libc6-compat: https://github.com/jnr/jnr-posix/issues/73
 depends="$pkgname-libs java-jffi-native>=1.2 libc6-compat>=1.1.12-r5 openjdk8-jre-base"
 makedepends="openjdk8 zip"
 subpackages="$pkgname-irb $pkgname-minitest $pkgname-rake $pkgname-rdoc
-	$pkgname-readline $pkgname-testunit $pkgname-libs
-	"
+	$pkgname-readline $pkgname-testunit $pkgname-libs"
 # jruby (launch script): https://github.com/jruby/jruby/pull/1860
 source="https://s3.amazonaws.com/jruby.org/downloads/$pkgver/$pkgname-bin-$pkgver.tar.gz
-	jruby
-	"
+	jruby"
 builddir="$srcdir/$pkgname-$pkgver"
 
 _destdir="/usr/share/$pkgname"
@@ -27,10 +26,10 @@ _rubydir="$_destdir/lib/ruby"
 _gemdir="$_rubydir/gems/shared"
 _stdlibdir="$_rubydir/stdlib"
 
-_arch="$CARCH"
 case "$CARCH" in
 arm*) _arch=arm;;
 x86) _arch=i386;;
+*) _arch="$CARCH";;
 esac
 
 prepare() {
@@ -47,10 +46,6 @@ prepare() {
 	zip -qd "$builddir"/lib/jruby.jar jni/*
 }
 
-build() {
-	return 0
-}
-
 package() {
 	cd "$builddir"
 
@@ -71,8 +66,7 @@ package() {
 		ln -sf $_bindir/$file "$pkgdir"/usr/bin/$file || return 1
 	done
 
-        install -m644 -D COPYING \
-		"$pkgdir/usr/share/licenses/$pkgname"/COPYING
+	install -m644 -D COPYING "$pkgdir"/usr/share/licenses/$pkgname/COPYING
 }
 
 irb() {
@@ -147,7 +141,7 @@ _mvgem() {
 			./$_gemdir/gems/$name-* \
 			./$_gemdir/specifications/default/$name-*; do
 		[ -e "$pkgdir"/$file ] || continue
-		_mv "$file"
+		_mv "$file" || return 1
 	done
 }