sphinxcontrib-github-alt: port away from pyproject2setuppy

mingw-w64-python-sphinxcontrib-github-alt/PKGBUILD

@@ -4,39 +4,34 @@ _realname=sphinxcontrib-github-alt
 pkgbase=mingw-w64-python-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-python-${_realname}")
 pkgver=1.2
-pkgrel=1
+pkgrel=2
 pkgdesc="Link to GitHub issues, pull requests, commits and users from Sphinx docs. (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32' 'clangarm64')
 url='https://github.com/jupyter/sphinxcontrib_github_alt'
-license=('BSD')
+license=('spdx:BSD-2-Clause')
 depends=("${MINGW_PACKAGE_PREFIX}-python"
          "${MINGW_PACKAGE_PREFIX}-python-docutils"
          "${MINGW_PACKAGE_PREFIX}-python-sphinx")
-makedepends=("${MINGW_PACKAGE_PREFIX}-python-pyproject2setuppy")
+makedepends=(
+  "${MINGW_PACKAGE_PREFIX}-python-build"
+  "${MINGW_PACKAGE_PREFIX}-python-installer"
+  "${MINGW_PACKAGE_PREFIX}-python-flit-core")
 source=("${_realname}-${pkgver}.tar.gz"::"$url/archive/refs/tags/${pkgver}.tar.gz")
 sha256sums=('7a85ad988f7b7cdc230d58854c31acab1308a75016b9c453bf76bfc0598cbbac')
 
-prepare() {
-  cd "${srcdir}/${_realname//-/_}-${pkgver}"
-  ## (OPTIONAL) Only if setuptools-scm is used
-  # Set version for setuptools_scm
-  export SETUPTOOLS_SCM_PRETEND_VERSION=${pkgver}
-}
-
 build() {
   cd "${srcdir}"
   cp -r "${_realname//-/_}-${pkgver}" "python-build-${MSYSTEM}" && cd "python-build-${MSYSTEM}"
 
-  "${MINGW_PREFIX}"/bin/python -m pyproject2setuppy.main build
+  python -m build --wheel --skip-dependency-check --no-isolation
 }
 
 package() {
   cd "${srcdir}/python-build-${MSYSTEM}"
 
-  MSYS2_ARG_CONV_EXCL="--prefix=;--install-scripts=;--install-platlib=" \
-    "${MINGW_PREFIX}"/bin/python  -m pyproject2setuppy.main install --prefix="${MINGW_PREFIX}" \
-      --root="${pkgdir}" --optimize=1 --skip-build
+  MSYS2_ARG_CONV_EXCL="--prefix=" \
+    python -m installer --prefix=${MINGW_PREFIX} --destdir="${pkgdir}" dist/*.whl
 
   install -Dm644 COPYING.md "${pkgdir}${MINGW_PREFIX}/share/licenses/python-${_realname}/LICENSE"
 }