dev-python/importlib_resources: Use flit to build (for bootstrap)

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

1 files changed, 42 insertions, 0 deletions

diff --git a/dev-python/importlib_resources/importlib_resources-5.4.0-r3.ebuild b/dev-python/importlib_resources/importlib_resources-5.4.0-r3.ebuild
new file mode 100644
index 000000000000..c63e09472b65
--- /dev/null
+++ b/dev-python/importlib_resources/importlib_resources-5.4.0-r3.ebuild
@@ -0,0 +1,42 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=flit
+# This is a backport of Python 3.9's importlib.resources
+PYTHON_COMPAT=( pypy3 python3_8 )
+
+inherit distutils-r1
+
+DESCRIPTION="Read resources from Python packages"
+HOMEPAGE="https://github.com/python/importlib_resources"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-macos"
+
+RDEPEND="
+	$(python_gen_cond_dep '
+		dev-python/zipp[${PYTHON_USEDEP}]
+	' python3_{8,9} pypy3)"
+
+distutils_enable_tests unittest
+distutils_enable_sphinx docs dev-python/rst-linker dev-python/jaraco-packaging
+
+src_configure() {
+	grep -q 'build-backend = "setuptools' pyproject.toml ||
+		die "Upstream changed build-backend, recheck"
+	# write a custom pyproject.toml to ease setuptools bootstrap
+	cat > pyproject.toml <<-EOF || die
+		[build-system]
+		requires = ["flit_core >=3.2,<4"]
+		build-backend = "flit_core.buildapi"
+
+		[project]
+		name = "importlib_resources"
+		version = "${PV}"
+		description = "Read resources from Python packages"
+	EOF
+}