main/py-snowballstemmer: improve abuild, s/python-dev/python2-dev/

main/py-snowballstemmer/APKBUILD

 # Contributor: Carlo Landmeter <clandmeter@gmail.com>
 # Maintainer:
 pkgname=py-snowballstemmer
+_pkgname=snowballstemmer
 pkgver=1.2.0
 pkgrel=0
 pkgdesc="Snowball stemming library collection for Python"
@@ -8,30 +9,17 @@ url="https://github.com/shibukawa/snowball_py"
 arch="noarch"
 license="BSD"
 depends=""
-depends_dev=""
-makedepends="$depends_dev python-dev"
-install=""
-subpackages=""
-source="https://files.pythonhosted.org/packages/source/s/snowballstemmer/snowballstemmer-$pkgver.tar.gz"
-
-_builddir="$srcdir"/snowballstemmer-$pkgver
-prepare() {
-	local i
-	cd "$_builddir"
-	for i in $source; do
-		case $i in
-		*.patch) msg $i; patch -p1 -i "$srcdir"/$i || return 1;;
-		esac
-	done
-}
+makedepends="python2-dev"
+source="https://files.pythonhosted.org/packages/source/${_pkgname:0:1}/$_pkgname/$_pkgname-$pkgver.tar.gz"
+builddir="$srcdir/$_pkgname-$pkgver"
 
 build() {
-	cd "$_builddir"
+	cd "$builddir"
 	python setup.py build || return 1
 }
 
 package() {
-	cd "$_builddir"
+	cd "$builddir"
 	python setup.py install --prefix=/usr --root="$pkgdir" || return 1
 }