!/usr/bin/env python import subprocess import os import errno import collections import glob import argparse

class Platform(object):

pass

class i386_platform(Platform):

arch = 'i386'

prefix = "#ifdef __i386__\n\n"
suffix = "\n\n#endif"
src_dir = 'x86'
src_files = ['sysv.S', 'ffi.c', 'internal.h']

class x86_64_platform(Platform):

arch = 'x86_64'

prefix = "#ifdef __x86_64__\n\n"
suffix = "\n\n#endif"
src_dir = 'x86'
src_files = ['unix64.S', 'ffi64.c', 'ffiw64.c', 'win64.S', 'internal64.h', 'asmnames.h']

class arm64_platform(Platform):

arch = 'arm64'

prefix = "#ifdef __arm64__\n\n"
suffix = "\n\n#endif"
src_dir = 'aarch64'
src_files = ['sysv.S', 'ffi.c', 'internal.h']

class armv7_platform(Platform):

arch = 'armv7'

prefix = "#ifdef __arm__\n\n"
suffix = "\n\n#endif"
src_dir = 'arm'
src_files = ['sysv.S', 'ffi.c', 'internal.h']

class ios_simulator_i386_platform(i386_platform):

target = 'i386-apple-ios-simulator'
directory = 'darwin_ios'
sdk = 'iphonesimulator'
version_min = '-miphoneos-version-min=7.0'

class ios_simulator_x86_64_platform(x86_64_platform):

target = 'x86_64-apple-ios-simulator'
directory = 'darwin_ios'
sdk = 'iphonesimulator'
version_min = '-miphoneos-version-min=7.0'

class ios_simulator_arm64_platform(arm64_platform):

target = 'arm64-apple-ios-simulator'
directory = 'darwin_ios'
sdk = 'iphonesimulator'
version_min = '-miphoneos-version-min=7.0'

class ios_device_armv7_platform(armv7_platform):

target = 'armv7-apple-ios'
directory = 'darwin_ios'
sdk = 'iphoneos'
version_min = '-miphoneos-version-min=7.0'

class ios_device_arm64_platform(arm64_platform):

target = 'arm64-apple-ios'
directory = 'darwin_ios'
sdk = 'iphoneos'
version_min = '-miphoneos-version-min=7.0'

class desktop_x86_64_platform(x86_64_platform):

target = 'x86_64-apple-macos'
directory = 'darwin_osx'
sdk = 'macosx'
version_min = '-mmacosx-version-min=10.6'

class desktop_arm64_platform(arm64_platform):

target = 'arm64-apple-macos'
directory = 'darwin_osx'
sdk = 'macosx'
version_min = '-mmacosx-version-min=11.0'

class tvos_simulator_x86_64_platform(x86_64_platform):

target = 'x86_64-apple-tvos-simulator'
directory = 'darwin_tvos'
sdk = 'appletvsimulator'
version_min = '-mtvos-version-min=9.0'

class tvos_simulator_arm64_platform(arm64_platform):

target = 'arm64-apple-tvos-simulator'
directory = 'darwin_tvos'
sdk = 'appletvsimulator'
version_min = '-mtvos-version-min=9.0'

class tvos_device_arm64_platform(arm64_platform):

target = 'arm64-apple-tvos'
directory = 'darwin_tvos'
sdk = 'appletvos'
version_min = '-mtvos-version-min=9.0'

class watchos_simulator_i386_platform(i386_platform):

target = 'i386-apple-watchos-simulator'
directory = 'darwin_watchos'
sdk = 'watchsimulator'
version_min = '-mwatchos-version-min=4.0'

class watchos_simulator_x86_64_platform(x86_64_platform):

target = 'x86_64-apple-watchos-simulator'
directory = 'darwin_watchos'
sdk = 'watchsimulator'
version_min = '-mwatchos-version-min=4.0'

class watchos_simulator_arm64_platform(arm64_platform):

target = 'arm64-apple-watchos-simulator'
directory = 'darwin_watchos'
sdk = 'watchsimulator'
version_min = '-mwatchos-version-min=4.0'

class watchos_device_armv7k_platform(armv7_platform):

target = 'armv7k-apple-watchos'
directory = 'darwin_watchos'
sdk = 'watchos'
arch = 'armv7k'
version_min = '-mwatchos-version-min=4.0'

class watchos_device_arm64_32_platform(arm64_platform):

target = 'arm64_32-apple-watchos'
directory = 'darwin_watchos'
sdk = 'watchos'
arch = 'arm64_32'
version_min = '-mwatchos-version-min=4.0'

def mkdir_p(path):

try:
    os.makedirs(path)
except OSError as exc:  # Python >2.5
    if exc.errno != errno.EEXIST:
        raise

def move_file(src_dir, dst_dir, filename, file_suffix=None, prefix=”, suffix=”):

mkdir_p(dst_dir)
out_filename = filename

if file_suffix:
    if filename in ['internal64.h', 'asmnames.h', 'internal.h']:
        out_filename = filename
    else:
        split_name = os.path.splitext(filename)
        out_filename = "%s_%s%s" % (split_name[0], file_suffix, split_name[1])

with open(os.path.join(src_dir, filename)) as in_file:
    with open(os.path.join(dst_dir, out_filename), 'w') as out_file:
        if prefix:
            out_file.write(prefix)

        out_file.write(in_file.read())

        if suffix:
            out_file.write(suffix)

def list_files(src_dir, pattern=None, filelist=None):

if pattern: filelist = glob.iglob(os.path.join(src_dir, pattern))
for file in filelist:
    yield os.path.basename(file)

def copy_files(src_dir, dst_dir, pattern=None, filelist=None, file_suffix=None, prefix=None, suffix=None):

for filename in list_files(src_dir, pattern=pattern, filelist=filelist):
    move_file(src_dir, dst_dir, filename, file_suffix=file_suffix, prefix=prefix, suffix=suffix)

def copy_src_platform_files(platform):

src_dir = os.path.join('src', platform.src_dir)
dst_dir = os.path.join(platform.directory, 'src', platform.src_dir)
copy_files(src_dir, dst_dir, filelist=platform.src_files, file_suffix=platform.arch, prefix=platform.prefix, suffix=platform.suffix)

def build_target(platform, platform_headers):

def xcrun_cmd(cmd):
    return 'xcrun -sdk %s %s -target %s' % (platform.sdk, cmd, platform.target)

tag='%s-%s' % (platform.sdk, platform.arch)
build_dir = 'build_%s' % tag
mkdir_p(build_dir)
env = dict(CC=xcrun_cmd('clang'),
           LD=xcrun_cmd('ld'),
           CFLAGS='%s -fembed-bitcode' % (platform.version_min))
working_dir = os.getcwd()
try:
    os.chdir(build_dir)
    subprocess.check_call(
        [
            "../configure",
            f"--host={platform.target}",
        ] + (
            [] if platform.sdk == "macosx" else [f"--build={os.uname().machine}-apple-darwin"]
        ),
        env=env
    )
finally:
    os.chdir(working_dir)

for src_dir in [build_dir, os.path.join(build_dir, 'include')]:
    copy_files(src_dir,
               os.path.join(platform.directory, 'include'),
               pattern='*.h',
               file_suffix=platform.arch,
               prefix=platform.prefix,
               suffix=platform.suffix)

    for filename in list_files(src_dir, pattern='*.h'):
        platform_headers[filename].add((platform.prefix, platform.arch, platform.suffix))

def generate_source_and_headers(

generate_osx=True,
generate_ios=True,
generate_tvos=True,
generate_watchos=True,

):

copy_files('src', 'darwin_common/src', pattern='*.c')
copy_files('include', 'darwin_common/include', pattern='*.h')

if generate_ios:
    copy_src_platform_files(ios_simulator_i386_platform)
    copy_src_platform_files(ios_simulator_x86_64_platform)
    copy_src_platform_files(ios_simulator_arm64_platform)
    copy_src_platform_files(ios_device_armv7_platform)
    copy_src_platform_files(ios_device_arm64_platform)
if generate_osx:
    copy_src_platform_files(desktop_x86_64_platform)
    copy_src_platform_files(desktop_arm64_platform)
if generate_tvos:
    copy_src_platform_files(tvos_simulator_x86_64_platform)
    copy_src_platform_files(tvos_simulator_arm64_platform)
    copy_src_platform_files(tvos_device_arm64_platform)
if generate_watchos:
    copy_src_platform_files(watchos_simulator_i386_platform)
    copy_src_platform_files(watchos_simulator_x86_64_platform)
    copy_src_platform_files(watchos_simulator_arm64_platform)
    copy_src_platform_files(watchos_device_armv7k_platform)
    copy_src_platform_files(watchos_device_arm64_32_platform)

platform_headers = collections.defaultdict(set)

if generate_ios:
    build_target(ios_simulator_i386_platform, platform_headers)
    build_target(ios_simulator_x86_64_platform, platform_headers)
    build_target(ios_simulator_arm64_platform, platform_headers)
    build_target(ios_device_armv7_platform, platform_headers)
    build_target(ios_device_arm64_platform, platform_headers)
if generate_osx:
    build_target(desktop_x86_64_platform, platform_headers)
    build_target(desktop_arm64_platform, platform_headers)
if generate_tvos:
    build_target(tvos_simulator_x86_64_platform, platform_headers)
    build_target(tvos_simulator_arm64_platform, platform_headers)
    build_target(tvos_device_arm64_platform, platform_headers)
if generate_watchos:
    build_target(watchos_simulator_i386_platform, platform_headers)
    build_target(watchos_simulator_x86_64_platform, platform_headers)
    build_target(watchos_simulator_arm64_platform, platform_headers)
    build_target(watchos_device_armv7k_platform, platform_headers)
    build_target(watchos_device_arm64_32_platform, platform_headers)

mkdir_p('darwin_common/include')
for header_name, tag_tuples in platform_headers.items():
    basename, suffix = os.path.splitext(header_name)
    with open(os.path.join('darwin_common/include', header_name), 'w') as header:
        for tag_tuple in tag_tuples:
            header.write('%s#include <%s_%s%s>\n%s\n' % (tag_tuple[0], basename, tag_tuple[1], suffix, tag_tuple[2]))

if __name__ == ‘__main__’:

parser = argparse.ArgumentParser()
parser.add_argument('--only-ios', action='store_true', default=False)
parser.add_argument('--only-osx', action='store_true', default=False)
parser.add_argument('--only-tvos', action='store_true', default=False)
parser.add_argument('--only-watchos', action='store_true', default=False)
args = parser.parse_args()

generate_source_and_headers(
    generate_osx=not args.only_ios and not args.only_tvos and not args.only_watchos,
    generate_ios=not args.only_osx and not args.only_tvos and not args.only_watchos,
    generate_tvos=not args.only_ios and not args.only_osx and not args.only_watchos,
    generate_watchos=not args.only_ios and not args.only_osx and not args.only_tvos,
)