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import glob

import logging

import os

import pkg_resources

import re

import shutil

import subprocess

import sys

import tarfile

from urllib.request import urlopen

from setuptools import setup, find_packages, Extension

from setuptools.command.build_ext import build_ext

# The VERSION line is edited automatically during deployments.

# You may change the contents of the string, but do not otherwise edit the line.

VERSION = "3.x.x-dev"

# LIBUAST_URL is a format url which points to the libuast package

# (see LIBUAST_VERSION and get_libuast_arch()). The url is used to download

# and install uast library.

LIBUAST_URL = "https://github.com/bblfsh/libuast/releases/download/{version}/libuast-{arch}.tar.gz"

LIBUAST_VERSION = "v3.4.3"

SDK_V1_VERSION = "v1.17.0"

SDK_V1_MAJOR = SDK_V1_VERSION.split('.')[0]

# SDK_URL is a format url which points to the sdk package.

# The url is used to download and install python bindings for bblfsh sdk.

SDK_URL = "https://github.com/bblfsh/sdk/archive/{version}.tar.gz"

SDK_V3_VERSION = "v3.3.1"

SDK_V3_PROTOCOL = "v2" # package gopkg.in.bblfsh.sdk.v2.protocol

FORMAT_ARGS = globals()

sources = ["bblfsh/pyuast.cc"]

log = logging.getLogger("setup.py")

# For debugging libuast-client interactions, set to True in production!

GET_LIBUAST = True

if not GET_LIBUAST:

log.warning("WARNING: not retrieving libuast, using local version")

class CustomBuildExt(build_ext):

def run(self):

global sources

get_libuast()

build_ext.run(self)

def j(*paths):

return os.path.join(*paths)

def runorexit(cmd, errmsg=""):

log.info(">>", cmd)

if os.system(cmd) != 0:

sep = ". " if errmsg else ""

log.error(errmsg + sep + "Failed command: '%s'" % cmd)

sys.exit(1)

def mkdir(path):

path = path.format(**FORMAT_ARGS)

log.info("mkdir -p " + path)

os.makedirs(path, exist_ok=True)

def rimraf(path):

path = path.format(**FORMAT_ARGS)

log.info("rm -rf " + path)

shutil.rmtree(path, ignore_errors=True)

def mv(src, dst):

src = src.format(**FORMAT_ARGS)

dst = dst.format(**FORMAT_ARGS)

log.info(">> mv %s %s", src, dst)

shutil.rmtree(dst, ignore_errors=True)

os.rename(src, dst)

def cp(src, dst):

src = src.format(**FORMAT_ARGS)

dst = dst.format(**FORMAT_ARGS)

log.info(">> cp %s %s", src, dst)

shutil.rmtree(dst, ignore_errors=True)

shutil.copy2(src, dst)

def cpr(src, dst):

src = src.format(**FORMAT_ARGS)

dst = dst.format(**FORMAT_ARGS)

log.info(">> cp -pr %s %s", src, dst)

if os.path.isdir(dst):

shutil.rmtree(dst)

shutil.copytree(src, dst, symlinks=True)

def untar_url(url, path="."):

log.info(">> tar xf " + url)

with urlopen(url) as response:

# tarfile calls it only once in the beginning

response.tell = lambda: 0

with tarfile.open(fileobj=response, mode=("r:" + url.rsplit(".", 1)[-1])) as tar:

tar.extractall(path=path)

def call(*cmd):

log.info(" ".join(cmd))

subprocess.check_call(cmd)

def create_dirs(sdk_major):

mkdir(j("proto", "gopkg.in", "bblfsh", "sdk.%s" % sdk_major, "protocol"))

mkdir(j("proto", "gopkg.in", "bblfsh", "sdk.%s" % sdk_major, "uast"))

mkdir(j("bblfsh", "gopkg", "in", "bblfsh", "sdk", sdk_major, "protocol"))

mkdir(j("bblfsh", "gopkg", "in", "bblfsh", "sdk", sdk_major, "uast"))

mkdir(j("bblfsh", "github", "com", "gogo", "protobuf", "gogoproto"))

def create_inits(sdk_major):

init_files = [

j("bblfsh", "github", "__init__.py"),

j("bblfsh", "github", "com", "__init__.py"),

j("bblfsh", "github", "com", "gogo", "__init__.py"),

j("bblfsh", "github", "com", "gogo", "protobuf", "__init__.py"),

j("bblfsh", "github", "com", "gogo", "protobuf", "gogoproto", "__init__.py"),

j("bblfsh", "gopkg", "__init__.py"),

j("bblfsh", "gopkg", "in", "__init__.py"),

j("bblfsh", "gopkg", "in", "bblfsh", "__init__.py"),

j("bblfsh", "gopkg", "in", "bblfsh", "sdk", "__init__.py"),

j("bblfsh", "gopkg", "in", "bblfsh", "sdk", sdk_major, "__init__.py"),

j("bblfsh", "gopkg", "in", "bblfsh", "sdk", sdk_major, "uast", "__init__.py"),

j("bblfsh", "gopkg", "in", "bblfsh", "sdk", sdk_major, "protocol", "__init__.py"),

]

for f in init_files:

open(f, "w").close()

def get_libuast_arch():

"""Return the os-arch tag to use when fetching libuast.

"""

# See https://github.com/bblfsh/python-client/issues/156.

if sys.platform == 'win32':

return 'windows-amd64'

elif sys.platform:

return sys.platform + '-amd64'

return 'linux-amd64'

def get_libuast():

if not GET_LIBUAST:

return

py_dir = os.getcwd()

local_libuast = j(py_dir, "bblfsh", "libuast")

mkdir(local_libuast)

# Retrieve libuast

untar_url(LIBUAST_URL.format(version=LIBUAST_VERSION, arch=get_libuast_arch()))

mv(get_libuast_arch(), local_libuast)

def proto_download_v1():

url = "https://github.com/bblfsh/sdk/archive/%s.tar.gz" % SDK_V1_VERSION

untar_url(url)

sdkdir = "sdk-" + SDK_V1_VERSION[1:]

destdir = j("proto", "gopkg.in", "bblfsh", "sdk.{SDK_V1_MAJOR}")

cp(j(sdkdir, "protocol", "generated.proto"),

j(destdir, "protocol", "generated.proto"))

cp(j(sdkdir, "uast", "generated.proto"),

j(destdir, "uast", "generated.proto"))

rimraf(sdkdir)

def proto_download_v2():

untar_url(SDK_URL.format(version=SDK_V3_VERSION))

sdkdir = "sdk-" + SDK_V3_VERSION[1:]

destdir = j("proto", "gopkg.in", "bblfsh", "sdk.{SDK_V3_PROTOCOL}")

cp(j(sdkdir, "protocol", "driver.proto"),

j(destdir, "protocol", "generated.proto"))

cp(j(sdkdir, "uast", "role", "generated.proto"),

j(destdir, "uast", "generated.proto"))

rimraf(sdkdir)

def proto_compile():

sysinclude = "-I" + pkg_resources.resource_filename("grpc_tools", "_proto")

from grpc.tools import protoc as protoc_module

from_import_re = re.compile(r"from ((github|gopkg)\.[^ ]*) import (.*)")

importlib_import_re = re.compile(r"([^ ]+) = importlib\.import_module\('(.*)")

grpc_import_re = re.compile(

r"from (([^ .]+\.)*in(\.[^ .]+)*) import ([^ ]+) as ([^\n]+)")

def patch(file, *patchers):

with open(file) as fin:

code = fin.readlines()

for i, line in enumerate(code):

for regexp, replacer in patchers:

match = regexp.match(line)

if match:

code[i] = replacer(match)

log.info("patched import in %s: %s", file, match.groups()[0])

break

if line.startswith("class") or line.startswith("DESCRIPTOR"):

break

with open(file, "w") as fout:

fout.write("".join(code))

def protoc(proto_file, grpc=False):

main_args = [protoc_module.__file__, "--python_out=bblfsh"]

target_dir = j("bblfsh", *os.path.dirname(proto_file).split("."))

if grpc:

# using "." creates "gopkg.in" instead of "gopkg/in" directories

main_args += ["--grpc_python_out=" + target_dir]

main_args += ["-Iproto", sysinclude, j("proto", proto_file)]

log.info("%s -m grpc.tools.protoc " +

" ".join(main_args[1:]), sys.executable)

protoc_module.main(main_args)

if grpc:

# we need to move the file back to grpc_out

grpc_garbage_dir = None

target = j(target_dir, "generated_pb2_grpc.py")

for root, dirnames, filenames in os.walk(target_dir):

for filename in filenames:

if filename == "generated_pb2_grpc.py" and\

grpc_garbage_dir is not None:

mv(j(root, filename), target)

if os.path.samefile(root, target_dir):

grpc_garbage_dir = j(root, dirnames[0])

if grpc_garbage_dir:

rimraf(grpc_garbage_dir)

# grpc ignores "in" and we need to patch the import path

def grpc_replacer(match):

groups = match.groups()

return 'import importlib\n%s = importlib.import_module("bblfsh.%s.%s")\n' % (

groups[-1], groups[0], groups[-2])

patch(target, (grpc_import_re, grpc_replacer))

target = glob.glob(j(target_dir, "*_pb2.py"))[0]

def from_import_replacer(match):

return "from bblfsh.%s import %s\n" % (match.group(1), match.group(3))

def importlib_import_replacer(match):

return "%s = importlib.import_module('bblfsh.%s\n" % (match.group(1), match.group(2))

patch(target,

(from_import_re, from_import_replacer),

(importlib_import_re, importlib_import_replacer))

protoc(j("github.com", "gogo", "protobuf", "gogoproto", "gogo.proto"))

protoc(j("gopkg.in", "bblfsh", "sdk." + SDK_V1_MAJOR, "protocol", "generated.proto"), True)

protoc(j("gopkg.in", "bblfsh", "sdk." + SDK_V1_MAJOR, "uast", "generated.proto"))

protoc(j("gopkg.in", "bblfsh", "sdk." + SDK_V3_PROTOCOL, "uast", "generated.proto"))

protoc(j("gopkg.in", "bblfsh", "sdk." + SDK_V3_PROTOCOL, "protocol", "generated.proto"), True)

def do_get_deps():

get_libuast()

create_dirs(SDK_V1_MAJOR)

create_dirs(SDK_V3_PROTOCOL)

create_inits(SDK_V1_MAJOR)

create_inits(SDK_V3_PROTOCOL)

proto_download_v1()

proto_download_v2()

proto_compile()

def clean():

rimraf("build")

rimraf("gopkg.in")

rimraf(j("bblfsh", "github"))

rimraf(j("bblfsh", "gopkg"))

if GET_LIBUAST:

rimraf(j("bblfsh", "libuast"))

def main():

# The --global-uast flag allows to install the python driver

# using the installed uast library

if "--log" in sys.argv:

logging.basicConfig(level=logging.INFO)

else:

logging.basicConfig(level=logging.ERROR)

if "--getdeps" in sys.argv:

do_get_deps()

sys.exit()

if "--clean" in sys.argv:

clean()

sys.exit()

libraries = []

static_lib_dir = j("bblfsh", "libuast")

static_libraries = ["{}/libuast".format(static_lib_dir)]

if sys.platform == 'win32':

libraries.extend(static_libraries)

libraries.extend(["legacy_stdio_definitions", "winmm", "ws2_32"])

extra_objects = []

else: # POSIX

extra_objects = ['{}.a'.format(l) for l in static_libraries]

libuast_module = Extension(

"bblfsh.pyuast",

libraries=libraries,

extra_compile_args=["-std=c++11"],

extra_objects=extra_objects,

include_dirs=[j("bblfsh", "libuast")],

sources=sources)

setup(

cmdclass={

"build_ext": CustomBuildExt,

name="bblfsh",

description="Fetches Universal Abstract Syntax Trees from Babelfish.",

version=VERSION,

license="Apache 2.0",

author="source{d}",

author_email="[email protected]",

url="https://github.com/bblfsh/python-client",

download_url="https://github.com/bblfsh/python-client",

packages=find_packages(),

exclude=["bblfsh/test.py"],

keywords=["babelfish", "uast"],

python_requires='>=3.6',

install_requires=["grpcio>=1.13.0", "grpcio-tools>=1.13.0",

"docker", "protobuf>=3.4.0"],

package_data={"": ["LICENSE", "README.md"]},

ext_modules=[libuast_module],

classifiers=[

"Development Status :: 3 - Alpha",

"Environment :: Console",

"Intended Audience :: Developers",

"License :: OSI Approved :: Apache Software License",

"Operating System :: POSIX",

"Programming Language :: Python :: 3.6",

"Programming Language :: Python :: 3.7",

"Topic :: Software Development :: Libraries"

zip_safe=False,

)

if __name__ == "__main__":

main()