dev-python/importlib_metadata: Bump to 4.12.0

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

dev-python/importlib_metadata/Manifest

@@ -1 +1,2 @@
 DIST importlib_metadata-4.11.4.tar.gz 44160 BLAKE2B 83b39ac858c5d3b63becc19be1a62ce253ce873afba16e5dad085fed531c5dcefa173e1644de10bef6318965aa132331b5d037dd7c0c8a0908880d97764b645e SHA512 2b5a6b0788103f7f0245f172832576852f56316e1c05b32f194a56b5fbaccd987c0315971f7d32d1b225ab74c12dc9f1aa96eb2a9ed2ebfd7613a9b816398560
+DIST importlib_metadata-4.12.0.tar.gz 48153 BLAKE2B b12b61a02be6428f80de418b3932b917066f6e9396d85158f8f31fa1b800c9cbd3f7dfd7cec48b51cc6c4ad5e5532136cc6ad7ea688c70466621976b232d9ccb SHA512 a7e3b8876665880a42bab885014199eed90efafcb386b89fddf62f3a6dbf51b192a0b9d208a40fd1f8b6db9d1bf80cf6d6753c1073196daa54dffa22a627443f

dev-python/importlib_metadata/importlib_metadata-4.12.0.ebuild

@@ -0,0 +1,51 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# please keep this ebuild at EAPI 7 -- sys-apps/portage dep
+EAPI=7
+
+DISTUTILS_USE_PEP517=flit
+# NB: this package extends beyond built-in importlib stuff in py3.8+
+# new entry_point API not yet included in cpython release
+PYTHON_COMPAT=( pypy3 python3_{8..11} )
+
+inherit distutils-r1
+
+DESCRIPTION="Read metadata from Python packages"
+HOMEPAGE="https://github.com/python/importlib_metadata"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+
+RDEPEND="
+	dev-python/zipp[${PYTHON_USEDEP}]
+"
+BDEPEND="
+	test? (
+		dev-python/packaging[${PYTHON_USEDEP}]
+		dev-python/pyfakefs[${PYTHON_USEDEP}]
+		$(python_gen_cond_dep '
+			dev-python/importlib_resources[${PYTHON_USEDEP}]
+		' 3.8)
+	)
+"
+
+distutils_enable_tests unittest
+
+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_metadata"
+		version = "${PV}"
+		description = "Read metadata from Python packages"
+	EOF
+}