main/openrc: new openrc-init subpackage

This subpackage gives users the option to keep the openrc-init binary,
even though Alpine does not use it

main/openrc/APKBUILD

@@ -2,7 +2,7 @@
 pkgname=openrc
 pkgver=0.54.2
 _ver=${pkgver/_git*/}
-pkgrel=0
+pkgrel=1
 pkgdesc="OpenRC manages the services, startup and shutdown of a host"
 url="https://github.com/OpenRC/openrc"
 arch="all"
@@ -17,6 +17,7 @@ subpackages="
 	$pkgname-tools::noarch
 	$pkgname-static
 	$pkgname-dev
+	$pkgname-init:openrc_init
 	agetty-openrc:_agetty_openrc:noarch
 	$pkgname-bash-completion
 	$pkgname-zsh-completion
@@ -106,10 +107,6 @@ package() {
 	mv "$pkgdir"/usr/lib/*.so* "$pkgdir"/usr/lib/*.a \
 		"$pkgdir"/lib/
 
-	# Alpine does not use openrc as its init so delete
-	# openrc-init & openrc-shutdown to avoid confusion.
-	rm -f "$pkgdir"/sbin/openrc-init "$pkgdir"/sbin/openrc-shutdown
-
 	# we cannot have anything turned on by default
 	rm -f "$pkgdir"/etc/runlevels/*/*
 
@@ -175,6 +172,14 @@ _agetty_openrc() {
 	amove etc/conf.d/agetty
 }
 
+openrc_init() {
+	pkgdesc="OpenRC init process"
+
+	# Alpine does not use openrc as its init by default
+	amove sbin/openrc-init
+	amove sbin/openrc-shutdown
+}
+
 sha512sums="
 6a4a9e7d84a5b4f1aeb78a271e69560b1d9e621392b36d26997727d75099f3628e7712f09b4e5393bc588eca41b375e2777a307d8b03ce26f45ed297537c9fd6  openrc-0.54.2.tar.gz
 257861f5f0562e9b9a9fccebae474bd75c4bb51f005a2b8132fd551f061f65863de46c5bc4437f137b4a9d3ca741f9de9274bfa7b418eda70497ed4b5fd3056d  0001-call-sbin-mkmntdirs-in-localmount-OpenRC-service.patch