Import grpcio-sys 0.6.0

And add metadata files using the following command:
get_rust_pkg.py --add3prf -v grpcio-sys-0.6.0 -o grpcio-sys

Use LICENSE file from parent grpcio crate. Add README.android
as requested during security review.

Test: None
Change-Id: Ib5f5c2af6f51d50c536cc4b6979666d480a57041
diff --git a/grpc/setup.py b/grpc/setup.py
new file mode 100644
index 0000000..a1562c7
--- /dev/null
+++ b/grpc/setup.py
@@ -0,0 +1,401 @@
+# Copyright 2015 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""A setup module for the GRPC Python package."""
+from distutils import cygwinccompiler
+from distutils import extension as _extension
+from distutils import util
+import os
+import os.path
+import pkg_resources
+import platform
+import re
+import shlex
+import shutil
+import sys
+import sysconfig
+
+import setuptools
+from setuptools.command import egg_info
+
+import subprocess
+from subprocess import PIPE
+
+# Redirect the manifest template from MANIFEST.in to PYTHON-MANIFEST.in.
+egg_info.manifest_maker.template = 'PYTHON-MANIFEST.in'
+
+PY3 = sys.version_info.major == 3
+PYTHON_STEM = os.path.join('src', 'python', 'grpcio')
+CORE_INCLUDE = ('include', '.',)
+ABSL_INCLUDE = (os.path.join('third_party', 'abseil-cpp'),)
+ADDRESS_SORTING_INCLUDE = (os.path.join('third_party', 'address_sorting', 'include'),)
+CARES_INCLUDE = (
+    os.path.join('third_party', 'cares'),
+    os.path.join('third_party', 'cares', 'cares'),)
+if 'darwin' in sys.platform:
+  CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_darwin'),)
+if 'freebsd' in sys.platform:
+  CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_freebsd'),)
+if 'linux' in sys.platform:
+  CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_linux'),)
+if 'openbsd' in sys.platform:
+  CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_openbsd'),)
+SSL_INCLUDE = (os.path.join('third_party', 'boringssl-with-bazel', 'src', 'include'),)
+UPB_INCLUDE = (os.path.join('third_party', 'upb'),)
+UPB_GRPC_GENERATED_INCLUDE = (os.path.join('src', 'core', 'ext', 'upb-generated'),)
+ZLIB_INCLUDE = (os.path.join('third_party', 'zlib'),)
+README = os.path.join(PYTHON_STEM, 'README.rst')
+
+# Ensure we're in the proper directory whether or not we're being used by pip.
+os.chdir(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, os.path.abspath(PYTHON_STEM))
+
+# Break import-style to ensure we can actually find our in-repo dependencies.
+import _parallel_compile_patch
+import _spawn_patch
+import commands
+import grpc_core_dependencies
+import grpc_version
+
+_parallel_compile_patch.monkeypatch_compile_maybe()
+_spawn_patch.monkeypatch_spawn()
+
+LICENSE = 'Apache License 2.0'
+
+CLASSIFIERS = [
+    'Development Status :: 5 - Production/Stable',
+    'Programming Language :: Python',
+    'Programming Language :: Python :: 2',
+    'Programming Language :: Python :: 2.7',
+    'Programming Language :: Python :: 3',
+    'Programming Language :: Python :: 3.4',
+    'Programming Language :: Python :: 3.5',
+    'Programming Language :: Python :: 3.6',
+    'Programming Language :: Python :: 3.7',
+    'Programming Language :: Python :: 3.8',
+    'License :: OSI Approved :: Apache Software License',
+]
+
+# Environment variable to determine whether or not the Cython extension should
+# *use* Cython or use the generated C files. Note that this requires the C files
+# to have been generated by building first *with* Cython support. Even if this
+# is set to false, if the script detects that the generated `.c` file isn't
+# present, then it will still attempt to use Cython.
+BUILD_WITH_CYTHON = os.environ.get('GRPC_PYTHON_BUILD_WITH_CYTHON', False)
+
+
+# Export this variable to use the system installation of openssl. You need to
+# have the header files installed (in /usr/include/openssl) and during
+# runtime, the shared library must be installed
+BUILD_WITH_SYSTEM_OPENSSL = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_OPENSSL',
+                                           False)
+
+# Export this variable to use the system installation of zlib. You need to
+# have the header files installed (in /usr/include/) and during
+# runtime, the shared library must be installed
+BUILD_WITH_SYSTEM_ZLIB = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_ZLIB',
+                                        False)
+
+# Export this variable to use the system installation of cares. You need to
+# have the header files installed (in /usr/include/) and during
+# runtime, the shared library must be installed
+BUILD_WITH_SYSTEM_CARES = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_CARES',
+                                         False)
+
+# For local development use only: This skips building gRPC Core and its
+# dependencies, including protobuf and boringssl. This allows "incremental"
+# compilation by first building gRPC Core using make, then building only the
+# Python/Cython layers here.
+#
+# Note that this requires libboringssl.a in the libs/{dbg,opt}/ directory, which
+# may require configuring make to not use the system openssl implementation:
+#
+#    make HAS_SYSTEM_OPENSSL_ALPN=0
+#
+# TODO(ericgribkoff) Respect the BUILD_WITH_SYSTEM_* flags alongside this option
+USE_PREBUILT_GRPC_CORE = os.environ.get(
+    'GRPC_PYTHON_USE_PREBUILT_GRPC_CORE', False)
+
+
+# If this environmental variable is set, GRPC will not try to be compatible with
+# libc versions old than the one it was compiled against.
+DISABLE_LIBC_COMPATIBILITY = os.environ.get('GRPC_PYTHON_DISABLE_LIBC_COMPATIBILITY', False)
+
+# Environment variable to determine whether or not to enable coverage analysis
+# in Cython modules.
+ENABLE_CYTHON_TRACING = os.environ.get(
+    'GRPC_PYTHON_ENABLE_CYTHON_TRACING', False)
+
+# Environment variable specifying whether or not there's interest in setting up
+# documentation building.
+ENABLE_DOCUMENTATION_BUILD = os.environ.get(
+    'GRPC_PYTHON_ENABLE_DOCUMENTATION_BUILD', False)
+
+def check_linker_need_libatomic():
+  """Test if linker on system needs libatomic."""
+  code_test = (b'#include <atomic>\n' +
+               b'int main() { return std::atomic<int64_t>{}; }')
+  cc_test = subprocess.Popen(['cc', '-x', 'c++', '-std=c++11', '-'],
+                             stdin=PIPE,
+                             stdout=PIPE,
+                             stderr=PIPE)
+  cc_test.communicate(input=code_test)
+  return cc_test.returncode != 0
+
+# There are some situations (like on Windows) where CC, CFLAGS, and LDFLAGS are
+# entirely ignored/dropped/forgotten by distutils and its Cygwin/MinGW support.
+# We use these environment variables to thus get around that without locking
+# ourselves in w.r.t. the multitude of operating systems this ought to build on.
+# We can also use these variables as a way to inject environment-specific
+# compiler/linker flags. We assume GCC-like compilers and/or MinGW as a
+# reasonable default.
+EXTRA_ENV_COMPILE_ARGS = os.environ.get('GRPC_PYTHON_CFLAGS', None)
+EXTRA_ENV_LINK_ARGS = os.environ.get('GRPC_PYTHON_LDFLAGS', None)
+if EXTRA_ENV_COMPILE_ARGS is None:
+  EXTRA_ENV_COMPILE_ARGS = ' -std=c++11'
+  if 'win32' in sys.platform:
+    if sys.version_info < (3, 5):
+      EXTRA_ENV_COMPILE_ARGS += ' -D_hypot=hypot'
+      # We use define flags here and don't directly add to DEFINE_MACROS below to
+      # ensure that the expert user/builder has a way of turning it off (via the
+      # envvars) without adding yet more GRPC-specific envvars.
+      # See https://sourceforge.net/p/mingw-w64/bugs/363/
+      if '32' in platform.architecture()[0]:
+        EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime32 -D_timeb=__timeb32 -D_ftime_s=_ftime32_s'
+      else:
+        EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime64 -D_timeb=__timeb64'
+    else:
+      # We need to statically link the C++ Runtime, only the C runtime is
+      # available dynamically
+      EXTRA_ENV_COMPILE_ARGS += ' /MT'
+  elif "linux" in sys.platform:
+    EXTRA_ENV_COMPILE_ARGS += ' -std=gnu99 -fvisibility=hidden -fno-wrapv -fno-exceptions'
+  elif "darwin" in sys.platform:
+    EXTRA_ENV_COMPILE_ARGS += ' -stdlib=libc++ -fvisibility=hidden -fno-wrapv -fno-exceptions'
+
+if EXTRA_ENV_LINK_ARGS is None:
+  EXTRA_ENV_LINK_ARGS = ''
+  if "linux" in sys.platform or "darwin" in sys.platform:
+    EXTRA_ENV_LINK_ARGS += ' -lpthread'
+    if check_linker_need_libatomic():
+      EXTRA_ENV_LINK_ARGS += ' -latomic'
+  elif "win32" in sys.platform and sys.version_info < (3, 5):
+    msvcr = cygwinccompiler.get_msvcr()[0]
+    EXTRA_ENV_LINK_ARGS += (
+        ' -static-libgcc -static-libstdc++ -mcrtdll={msvcr}'
+        ' -static -lshlwapi'.format(msvcr=msvcr))
+  if "linux" in sys.platform:
+    EXTRA_ENV_LINK_ARGS += ' -Wl,-wrap,memcpy -static-libgcc'
+
+EXTRA_COMPILE_ARGS = shlex.split(EXTRA_ENV_COMPILE_ARGS)
+EXTRA_LINK_ARGS = shlex.split(EXTRA_ENV_LINK_ARGS)
+
+CYTHON_EXTENSION_PACKAGE_NAMES = ()
+
+CYTHON_EXTENSION_MODULE_NAMES = ('grpc._cython.cygrpc',)
+
+CYTHON_HELPER_C_FILES = ()
+
+CORE_C_FILES = tuple(grpc_core_dependencies.CORE_SOURCE_FILES)
+if "win32" in sys.platform:
+  CORE_C_FILES = filter(lambda x: 'third_party/cares' not in x, CORE_C_FILES)
+
+if BUILD_WITH_SYSTEM_OPENSSL:
+  CORE_C_FILES = filter(lambda x: 'third_party/boringssl' not in x, CORE_C_FILES)
+  CORE_C_FILES = filter(lambda x: 'src/boringssl' not in x, CORE_C_FILES)
+  SSL_INCLUDE = (os.path.join('/usr', 'include', 'openssl'),)
+
+if BUILD_WITH_SYSTEM_ZLIB:
+  CORE_C_FILES = filter(lambda x: 'third_party/zlib' not in x, CORE_C_FILES)
+  ZLIB_INCLUDE = (os.path.join('/usr', 'include'),)
+
+if BUILD_WITH_SYSTEM_CARES:
+  CORE_C_FILES = filter(lambda x: 'third_party/cares' not in x, CORE_C_FILES)
+  CARES_INCLUDE = (os.path.join('/usr', 'include'),)
+
+EXTENSION_INCLUDE_DIRECTORIES = (
+    (PYTHON_STEM,) +
+    CORE_INCLUDE +
+    ABSL_INCLUDE +
+    ADDRESS_SORTING_INCLUDE +
+    CARES_INCLUDE +
+    SSL_INCLUDE +
+    UPB_INCLUDE +
+    UPB_GRPC_GENERATED_INCLUDE +
+    ZLIB_INCLUDE)
+
+EXTENSION_LIBRARIES = ()
+if "linux" in sys.platform:
+  EXTENSION_LIBRARIES += ('rt',)
+if not "win32" in sys.platform:
+  EXTENSION_LIBRARIES += ('m',)
+if "win32" in sys.platform:
+  EXTENSION_LIBRARIES += ('advapi32', 'ws2_32', 'dbghelp',)
+if BUILD_WITH_SYSTEM_OPENSSL:
+  EXTENSION_LIBRARIES += ('ssl', 'crypto',)
+if BUILD_WITH_SYSTEM_ZLIB:
+  EXTENSION_LIBRARIES += ('z',)
+if BUILD_WITH_SYSTEM_CARES:
+  EXTENSION_LIBRARIES += ('cares',)
+
+DEFINE_MACROS = (('OPENSSL_NO_ASM', 1), ('_WIN32_WINNT', 0x600))
+if not DISABLE_LIBC_COMPATIBILITY:
+  DEFINE_MACROS += (('GPR_BACKWARDS_COMPATIBILITY_MODE', 1),)
+if "win32" in sys.platform:
+  # TODO(zyc): Re-enable c-ares on x64 and x86 windows after fixing the
+  # ares_library_init compilation issue
+  DEFINE_MACROS += (('WIN32_LEAN_AND_MEAN', 1), ('CARES_STATICLIB', 1),
+                    ('GRPC_ARES', 0), ('NTDDI_VERSION', 0x06000000),
+                    ('NOMINMAX', 1),)
+  if '64bit' in platform.architecture()[0]:
+    DEFINE_MACROS += (('MS_WIN64', 1),)
+  elif sys.version_info >= (3, 5):
+    # For some reason, this is needed to get access to inet_pton/inet_ntop
+    # on msvc, but only for 32 bits
+    DEFINE_MACROS += (('NTDDI_VERSION', 0x06000000),)
+else:
+  DEFINE_MACROS += (('HAVE_CONFIG_H', 1), ('GRPC_ENABLE_FORK_SUPPORT', 1),)
+
+LDFLAGS = tuple(EXTRA_LINK_ARGS)
+CFLAGS = tuple(EXTRA_COMPILE_ARGS)
+if "linux" in sys.platform or "darwin" in sys.platform:
+  pymodinit_type = 'PyObject*' if PY3 else 'void'
+  pymodinit = 'extern "C" __attribute__((visibility ("default"))) {}'.format(pymodinit_type)
+  DEFINE_MACROS += (('PyMODINIT_FUNC', pymodinit),)
+  DEFINE_MACROS += (('GRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK', 1),)
+
+# By default, Python3 distutils enforces compatibility of
+# c plugins (.so files) with the OSX version Python3 was built with.
+# For Python3.4, this is OSX 10.6, but we need Thread Local Support (__thread)
+if 'darwin' in sys.platform and PY3:
+  mac_target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
+  if mac_target and (pkg_resources.parse_version(mac_target) <
+                     pkg_resources.parse_version('10.7.0')):
+    os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.7'
+    os.environ['_PYTHON_HOST_PLATFORM'] = re.sub(
+        r'macosx-[0-9]+\.[0-9]+-(.+)',
+        r'macosx-10.7-\1',
+        util.get_platform())
+
+
+def cython_extensions_and_necessity():
+  cython_module_files = [os.path.join(PYTHON_STEM,
+                               name.replace('.', '/') + '.pyx')
+                  for name in CYTHON_EXTENSION_MODULE_NAMES]
+  config = os.environ.get('CONFIG', 'opt')
+  prefix = 'libs/' + config + '/'
+  if USE_PREBUILT_GRPC_CORE:
+    extra_objects = [prefix + 'libares.a',
+                     prefix + 'libboringssl.a',
+                     prefix + 'libgpr.a',
+                     prefix + 'libgrpc.a']
+    core_c_files = []
+  else:
+    core_c_files = list(CORE_C_FILES)
+    extra_objects = []
+  extensions = [
+      _extension.Extension(
+          name=module_name,
+          sources=[module_file] + list(CYTHON_HELPER_C_FILES) + core_c_files,
+          include_dirs=list(EXTENSION_INCLUDE_DIRECTORIES),
+          libraries=list(EXTENSION_LIBRARIES),
+          define_macros=list(DEFINE_MACROS),
+          extra_objects=extra_objects,
+          extra_compile_args=list(CFLAGS),
+          extra_link_args=list(LDFLAGS),
+      ) for (module_name, module_file) in zip(list(CYTHON_EXTENSION_MODULE_NAMES), cython_module_files)
+  ]
+  need_cython = BUILD_WITH_CYTHON
+  if not BUILD_WITH_CYTHON:
+    need_cython = need_cython or not commands.check_and_update_cythonization(extensions)
+  # TODO: the strategy for conditional compiling and exposing the aio Cython
+  # dependencies will be revisited by https://github.com/grpc/grpc/issues/19728
+  return commands.try_cythonize(extensions, linetracing=ENABLE_CYTHON_TRACING, mandatory=BUILD_WITH_CYTHON), need_cython
+
+CYTHON_EXTENSION_MODULES, need_cython = cython_extensions_and_necessity()
+
+PACKAGE_DIRECTORIES = {
+    '': PYTHON_STEM,
+}
+
+INSTALL_REQUIRES = (
+    "six>=1.5.2",
+    "futures>=2.2.0; python_version<'3.2'",
+    "enum34>=1.0.4; python_version<'3.4'",
+)
+
+SETUP_REQUIRES = INSTALL_REQUIRES + (
+    'Sphinx~=1.8.1',
+    'six>=1.10',
+  ) if ENABLE_DOCUMENTATION_BUILD else ()
+
+try:
+  import Cython
+except ImportError:
+  if BUILD_WITH_CYTHON:
+    sys.stderr.write(
+      "You requested a Cython build via GRPC_PYTHON_BUILD_WITH_CYTHON, "
+      "but do not have Cython installed. We won't stop you from using "
+      "other commands, but the extension files will fail to build.\n")
+  elif need_cython:
+    sys.stderr.write(
+        'We could not find Cython. Setup may take 10-20 minutes.\n')
+    SETUP_REQUIRES += ('cython>=0.23',)
+
+COMMAND_CLASS = {
+    'doc': commands.SphinxDocumentation,
+    'build_project_metadata': commands.BuildProjectMetadata,
+    'build_py': commands.BuildPy,
+    'build_ext': commands.BuildExt,
+    'gather': commands.Gather,
+}
+
+# Ensure that package data is copied over before any commands have been run:
+credentials_dir = os.path.join(PYTHON_STEM, 'grpc', '_cython', '_credentials')
+try:
+  os.mkdir(credentials_dir)
+except OSError:
+  pass
+shutil.copyfile(os.path.join('etc', 'roots.pem'),
+                os.path.join(credentials_dir, 'roots.pem'))
+
+PACKAGE_DATA = {
+    # Binaries that may or may not be present in the final installation, but are
+    # mentioned here for completeness.
+    'grpc._cython': [
+        '_credentials/roots.pem',
+        '_windows/grpc_c.32.python',
+        '_windows/grpc_c.64.python',
+    ],
+}
+PACKAGES = setuptools.find_packages(PYTHON_STEM)
+
+setuptools.setup(
+  name='grpcio',
+  version=grpc_version.VERSION,
+  description='HTTP/2-based RPC framework',
+  author='The gRPC Authors',
+  author_email='grpc-io@googlegroups.com',
+  url='https://grpc.io',
+  license=LICENSE,
+  classifiers=CLASSIFIERS,
+  long_description=open(README).read(),
+  ext_modules=CYTHON_EXTENSION_MODULES,
+  packages=list(PACKAGES),
+  package_dir=PACKAGE_DIRECTORIES,
+  package_data=PACKAGE_DATA,
+  install_requires=INSTALL_REQUIRES,
+  setup_requires=SETUP_REQUIRES,
+  cmdclass=COMMAND_CLASS,
+)