Use PEP 517

PKGBUILD

@@ -4,13 +4,14 @@
 _name=pygls
 pkgname=python-pygls
 pkgver=0.10.3
-pkgrel=2
+pkgrel=3
 pkgdesc='Pythonic generic implementation of the Language Server Protocol'
 arch=('any')
 url=https://github.com/openlawlibrary/pygls
 license=('APACHE')
 depends=('python-pydantic' 'python-typeguard')
-makedepends=('python-setuptools-scm' 'python-toml')
+makedepends=('python-build' 'python-install' 'python-setuptools-scm'
+             'python-toml' 'python-wheel')
 checkdepends=('python-mock' 'python-pytest' 'python-pytest-asyncio')
 source=("https://files.pythonhosted.org/packages/source/${_name::1}/$_name/$_name-$pkgver.tar.gz")
 sha256sums=('522c1068dd38c4945925ca742daba6aff5621168e0e5ddd954813e8b957ca831')
@@ -18,7 +19,7 @@ b2sums=('86eb889b73cdc7eb99b92e419e4d00d46d2662984dcf872c4ca2bc3040f3e13dda4f086
 
 build() {
   cd $_name-$pkgver
-  python setup.py build
+  python -m build --wheel --skip-dependency-check --no-isolation
 }
 
 check() {
@@ -28,7 +29,14 @@ check() {
 
 package() {
   cd $_name-$pkgver
-  python setup.py install --root="$pkgdir" --optimize=1 --skip-build
+  export PYTHONHASHSEED=0
+  python -m install --optimize=1 --destdir="$pkgdir" dist/*.whl
+
+  # Symlink license file
+  local site_packages=$(python -c "import site; print(site.getsitepackages()[0])")
+  install -d "$pkgdir"/usr/share/licenses/$pkgname
+  ln -s $site_packages/$_name-$pkgver.dist-info/LICENSE.txt \
+    "$pkgdir"/usr/share/licenses/$pkgname/LICENSE.txt
 }
 
 # vim:set ts=2 sw=2 et: