dev-python/protobuf-python: initial version, 3.0.0_beta2

- outsourced python implementation of dev-libs/protobuf
- added PYTHON_COMPAT for python 3.* and pypy{,3}

Package-Manager: portage-2.2.28
RepoMan-Options: --ignore-arches
Closes: https://github.com/gentoo/gentoo/pull/1295

Signed-off-by: Ian Delaney <idella4@gentoo.org>

dev-python/protobuf-python/Manifest

@@ -0,0 +1 @@
+DIST protobuf-3.0.0_beta2.tar.gz 3333054 SHA256 be224d07ce87f12e362cff3df02851107bf92a4e4604349b1d7a4b1f0c3bfd86 SHA512 3a9329603226dabeaae7c28eb7463fb4403383e7774d53742e9e38a0426f5ef370803c68e4d4bc0d37585618fb340befe4f812731db0984b12032c3d931cdca7 WHIRLPOOL 0e77105c24d71c0269f4375ebfaef38175d762e1a90cdd81f594c13bbece9f390ada9291f722e8e0227952a1f5cd94976037f069b86703c7a3a37a9277cb66f8

dev-python/protobuf-python/files/protobuf-3.0.0_beta2-link-against-installed-lib.patch

@@ -0,0 +1,32 @@
+diff -Naur python/setup.py python/setup.py
+--- python/setup.py	2015-12-30 22:21:46.000000000 +0100
++++ python/setup.py	2016-04-18 00:51:49.490809789 +0200
+@@ -169,14 +169,26 @@
+       extra_compile_args.append('-Werror')
+       sys.argv.remove(warnings_as_errors)
+ 
++    inclD = ['.', '../src']
++    libD = []
++    try:
++      subprocess.check_call(['pkg-config', '--exists', 'protobuf'])
++      inclD += subprocess.check_output(['pkg-config','--variable=includedir','protobuf']).split()
++      libD = subprocess.check_output(['pkg-config','--variable=libdir','protobuf']).split()
++    except OSError as osex:
++      if osex.errno == errno.ENOENT:
++        info('pkg-config not found')
++      else:
++        warn("Running pkg-config failed - %s." % osexception)
++      libD = ['../src/.libs']
+     # C++ implementation extension
+     ext_module_list.append(
+         Extension(
+             "google.protobuf.pyext._message",
+             glob.glob('google/protobuf/pyext/*.cc'),
+-            include_dirs=[".", "../src"],
++            include_dirs=inclD,
+             libraries=['protobuf'],
+-            library_dirs=['../src/.libs'],
++            library_dirs=libD,
+             extra_compile_args=extra_compile_args,
+         )
+     )

dev-python/protobuf-python/metadata.xml

@@ -0,0 +1,24 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!DOCTYPE pkgmetadata SYSTEM 'http://www.gentoo.org/dtd/metadata.dtd'>
+<pkgmetadata>
+<maintainer type='person'>
+	<email>vapier@gentoo.org</email>
+</maintainer>
+<maintainer type='person'>
+	<email>tomboy64@sina.cn</email>
+</maintainer>
+<maintainer type="project">
+	<email>python@gentoo.org</email>
+	<name>Gentoo Python Project</name>
+</maintainer>
+<maintainer type="project">
+	<email>proxy-maint@gentoo.org</email>
+	<name>Gentoo Proxy Maintainers Project</name>
+</maintainer>
+<slots>
+	<subslots>soname major version number of protobuf</subslots>
+</slots>
+<upstream>
+	<remote-id type='github'>google/protobuf</remote-id>
+</upstream>
+</pkgmetadata>

dev-python/protobuf-python/protobuf-python-3.0.0_beta2.ebuild

@@ -0,0 +1,38 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+# pypy fails tests; pypy3 fails even running tests
+PYTHON_COMPAT=( python2_7 python3_3 python3_4 python3_5 )
+
+inherit distutils-r1
+
+MY_PV=${PV/_beta2/-beta-2}
+
+DESCRIPTION="Google's Protocol Buffers - official Python bindings"
+HOMEPAGE="https://github.com/google/protobuf/ https://developers.google.com/protocol-buffers/"
+SRC_URI="https://github.com/google/protobuf/archive/v${MY_PV}.tar.gz -> protobuf-${PV}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0/10"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sh ~sparc ~x86 ~amd64-linux ~arm-linux ~x86-linux ~x64-macos ~x86-macos"
+IUSE=""
+
+# Protobuf is only a build-time dep, but depend on the exact same version
+# (excluding revision), since we are using the same tarball.
+# In case of using the (linked) cpp implementation we should be fine with the same subslot.
+RDEPEND="${PYTHON_DEPS}
+	!<dev-libs/protobuf-3[python(-)]"
+DEPEND="${RDEPEND}
+	>=dev-libs/protobuf-3
+	dev-python/setuptools[${PYTHON_USEDEP}]
+	dev-python/six[${PYTHON_USEDEP}]"
+S="${WORKDIR}/protobuf-${MY_PV}/python"
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+PATCHES=( "${FILESDIR}/protobuf-${PV}-link-against-installed-lib.patch" )
+
+python_test() {
+	distutils_install_for_testing
+	esetup.py test
+}