app-alternatives/bzip2: Use app-alternatives.eclass

Signed-off-by: Michał Górny <mgorny@gentoo.org>

1 files changed, 20 insertions, 23 deletions

diff --git a/app-alternatives/bzip2/bzip2-1.ebuild b/app-alternatives/bzip2/bzip2-1.ebuild
index 6e61b5e2135d..6b0b5ef620d1 100644
--- a/app-alternatives/bzip2/bzip2-1.ebuild
+++ b/app-alternatives/bzip2/bzip2-1.ebuild
@@ -3,46 +3,43 @@
 
 EAPI=8
 
-DESCRIPTION="bzip2 symlink"
-HOMEPAGE="https://wiki.gentoo.org/wiki/Project:Base/Alternatives"
-SRC_URI=""
-S=${WORKDIR}
+ALTERNATIVES=(
+	"reference:>=app-arch/bzip2-1.0.8-r4"
+	"lbzip2:app-arch/lbzip2[-symlink(-)]"
+	"pbzip2:app-arch/pbzip2[-symlink(-)]"
+)
+
+inherit app-alternatives
 
-LICENSE="CC0-1.0"
-SLOT="0"
+DESCRIPTION="bzip2 symlink"
 KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
-IUSE="lbzip2 pbzip2 +reference split-usr"
-REQUIRED_USE="^^ ( lbzip2 pbzip2 reference )"
+IUSE="split-usr"
 
 RDEPEND="
-	lbzip2? ( app-arch/lbzip2[-symlink(-)] )
-	pbzip2? ( app-arch/pbzip2[-symlink(-)] )
-	reference? ( >=app-arch/bzip2-1.0.8-r4 )
 	!<app-arch/bzip2-1.0.8-r4
 	!app-arch/lbzip2[symlink(-)]
 	!app-arch/pbzip2[symlink(-)]
 "
 
 src_install() {
+	local alt=$(get_alternative)
 	local usr_prefix=
 	use split-usr && usr_prefix=../usr/bin/
 
-	if use lbzip2; then
-		dosym "${usr_prefix}lbzip2" /bin/bzip2
-		newman - bzip2.1 <<<".so lbzip2.1"
-	elif use pbzip2; then
-		dosym "${usr_prefix}pbzip2" /bin/bzip2
-		newman - bzip2.1 <<<".so pbzip2.1"
-	elif use reference; then
-		dosym bzip2-reference /bin/bzip2
-		newman - bzip2.1 <<<".so bzip2-reference.1"
-	else
-		die "Invalid USE flag combination (broken REQUIRED_USE?)"
-	fi
+	case ${alt} in
+		reference)
+			dosym bzip2-reference /bin/bzip2
+			alt=bzip2-reference
+			;;
+		*)
+			dosym "${usr_prefix}${alt}" /bin/bzip2
+			;;
+	esac
 
 	dosym bzip2 /bin/bunzip2
 	dosym bzip2 /bin/bzcat
 
+	newman - bzip2.1 <<<".so ${alt}.1"
 	newman - bunzip2.1 <<<".so bzip2.1"
 	newman - bzcat.1 <<<".so bzip2.1"
 }