dev-python/incremental: Switch to PEP 517 build

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

dev-python/incremental/incremental-21.3.0-r1.ebuild

@@ -0,0 +1,30 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{8..10} pypy3 )
+
+inherit distutils-r1
+
+DESCRIPTION="Incremental is a small library that versions your Python projects"
+HOMEPAGE="https://github.com/twisted/incremental https://pypi.org/project/incremental/"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	dev-python/click[${PYTHON_USEDEP}]
+	dev-python/setuptools[${PYTHON_USEDEP}]"
+BDEPEND="
+	test? ( dev-python/twisted[${PYTHON_USEDEP}] )"
+
+python_test() {
+	"${EPYTHON}" -m twisted.trial incremental ||
+		die "Tests failed on ${EPYTHON}"
+}