--- /dev/null
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python2_7 python3_{5,6,7} )
+
+inherit bash-completion-r1 distutils-r1 eutils
+
+DESCRIPTION="Asynchronous task queue/job queue based on distributed message passing"
+HOMEPAGE="http://celeryproject.org/ https://pypi.org/project/celery/"
+# The pypi tarball lacks CONTRIBUTING.rst required for documentation build.
+#SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+SRC_URI="https://github.com/celery/celery/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+# There are a number of other optional 'extras' which overlap with those of kombu, however
+# there has been no apparent expression of interest or demand by users for them. See requires.txt
+IUSE="doc examples test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+ <dev-python/kombu-5.0[${PYTHON_USEDEP}]
+ >=dev-python/kombu-4.4.0[${PYTHON_USEDEP}]
+ >=dev-python/billiard-3.6.0[${PYTHON_USEDEP}]
+ <dev-python/billiard-4.0.0[${PYTHON_USEDEP}]
+ dev-python/pytz[${PYTHON_USEDEP}]
+ dev-python/greenlet[${PYTHON_USEDEP}]
+ >=dev-python/vine-1.3.0[${PYTHON_USEDEP}]
+"
+
+DEPEND="
+ dev-python/setuptools[${PYTHON_USEDEP}]
+ test? ( ${RDEPEND}
+ >=dev-python/case-1.3.1[${PYTHON_USEDEP}]
+ >=dev-python/eventlet-0.24.1[${PYTHON_USEDEP}]
+ dev-python/gevent[$(python_gen_usedep python2_7)]
+ >=dev-python/pymongo-3.7[${PYTHON_USEDEP}]
+ dev-python/pyopenssl[${PYTHON_USEDEP}]
+ >=dev-python/pytest-4.3.1[${PYTHON_USEDEP}]
+ >=dev-python/python-dateutil-2.1[${PYTHON_USEDEP}]
+ dev-python/sqlalchemy[${PYTHON_USEDEP}]
+ >=dev-python/redis-py-3.2.0[${PYTHON_USEDEP}]
+ >=dev-db/redis-2.8.0
+ >=dev-python/boto-2.13.3[${PYTHON_USEDEP}]
+ >=dev-python/boto3-1.4.6[${PYTHON_USEDEP}]
+ >=dev-python/moto-1.3.7[${PYTHON_USEDEP}]
+ >=dev-python/pyzmq-13.1.0[${PYTHON_USEDEP}]
+ >=dev-python/pyyaml-3.10[${PYTHON_USEDEP}]
+ >=dev-python/unittest2-0.5.1[${PYTHON_USEDEP}]
+ )
+ doc? (
+ dev-python/docutils[${PYTHON_USEDEP}]
+ >=dev-python/sphinx_celery-2.0[$(python_gen_usedep 'python3*')]
+ dev-python/jinja[${PYTHON_USEDEP}]
+ dev-python/sqlalchemy[${PYTHON_USEDEP}]
+ $(python_gen_cond_dep 'dev-python/typing[${PYTHON_USEDEP}]' python2_7)
+ )"
+
+# testsuite needs it own source
+DISTUTILS_IN_SOURCE_BUILD=1
+
+python_prepare_all() {
+ # Loosen requirements
+ sed -e 's|==|>=|' \
+ -e 's|pytest>=4.3.1,<4.4.0|pytest>=4.3.1|' \
+ -i requirements/*.txt || die
+
+ # Suppress KeyError: 'refdoc'
+ sed -e 's|^[[:space:]]*return domain.resolve_xref(env, node\['\''refdoc'\''\], app.builder,$| if '\''refdoc'\'' not in node:\n return None\n\0|' \
+ -i docs/_ext/celerydocs.py || die
+
+ distutils-r1_python_prepare_all
+}
+
+python_compile_all() {
+ if use doc; then
+ python_setup -3
+ mkdir docs/.build || die
+ emake -C docs html
+ fi
+}
+
+python_test() {
+ esetup.py test
+}
+
+python_install_all() {
+ # Main celeryd init.d and conf.d
+ newinitd "${FILESDIR}/celery.initd-r2" celery
+ newconfd "${FILESDIR}/celery.confd-r2" celery
+
+ if use examples; then
+ docompress -x "/usr/share/doc/${PF}/examples"
+ docinto examples
+ dodoc -r examples/.
+ fi
+
+ use doc && local HTML_DOCS=( docs/_build/html/. )
+
+ newbashcomp extra/bash-completion/celery.bash ${PN}
+
+ distutils-r1_python_install_all
+}
+
+pkg_postinst() {
+ optfeature "zookeeper support" dev-python/kazoo
+ optfeature "msgpack support" dev-python/msgpack
+ #optfeature "rabbitmq support" dev-python/librabbitmq
+ #optfeature "slmq support" dev-python/softlayer_messaging
+ optfeature "eventlet support" dev-python/eventlet
+ #optfeature "couchbase support" dev-python/couchbase
+ optfeature "redis support" dev-db/redis dev-python/redis-py
+ optfeature "gevent support" dev-python/gevent
+ optfeature "auth support" dev-python/pyopenssl
+ optfeature "pyro support" dev-python/pyro:4
+ optfeature "yaml support" dev-python/pyyaml
+ optfeature "memcache support" dev-python/pylibmc
+ optfeature "mongodb support" dev-python/pymongo
+ optfeature "sqlalchemy support" dev-python/sqlalchemy
+ optfeature "sqs support" dev-python/boto
+ #optfeature "cassandra support" dev-python/cassandra-driver
+}