--- /dev/null
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+# backports.lzma is broken with pypy
+# pyblake2 & pysha3 are broken with pypy3
+PYTHON_COMPAT=( python{2_7,3_4,3_5,3_6} )
+inherit distutils-r1
+
+DESCRIPTION="Stand-alone Manifest generation & verification tool"
+HOMEPAGE="https://github.com/mgorny/gemato"
+SRC_URI="https://github.com/mgorny/gemato/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="BSD-2"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="+blake2 bzip2 +gpg lzma sha3"
+
+RDEPEND="
+ blake2? ( $(python_gen_cond_dep 'dev-python/pyblake2[${PYTHON_USEDEP}]' python{2_7,3_4,3_5} pypy{,3}) )
+ bzip2? ( $(python_gen_cond_dep 'dev-python/bz2file[${PYTHON_USEDEP}]' python2_7 pypy) )
+ gpg? ( app-crypt/gnupg )
+ lzma? ( $(python_gen_cond_dep 'dev-python/backports-lzma[${PYTHON_USEDEP}]' python2_7 pypy) )
+ sha3? ( $(python_gen_cond_dep 'dev-python/pysha3[${PYTHON_USEDEP}]' python{2_7,3_4,3_5} pypy{,3}) )"
+DEPEND="${RDEPEND}"
+
+python_test() {
+ "${PYTHON}" -m unittest discover -v || die "Tests fail with ${EPYTHON}"
+}