Magisk/build.py
2022-05-15 01:01:54 -07:00

568 lines
16 KiB
Python
Executable File

#!/usr/bin/env python3
import argparse
import errno
import lzma
import multiprocessing
import os
import os.path as op
import platform
import shutil
import stat
import subprocess
import sys
import textwrap
import urllib.request
import tarfile
def error(str):
if is_ci:
print(f'\n ! {str}\n')
else:
print(f'\n\033[41m{str}\033[0m\n')
sys.exit(1)
def header(str):
if is_ci:
print(f'\n{str}\n')
else:
print(f'\n\033[44m{str}\033[0m\n')
def vprint(str):
if args.verbose:
print(str)
is_windows = os.name == 'nt'
is_ci = 'CI' in os.environ and os.environ['CI'] == 'true'
if not is_ci and is_windows:
import colorama
colorama.init()
# Environment checks
if not sys.version_info >= (3, 6):
error('Requires Python 3.6+')
if 'ANDROID_SDK_ROOT' not in os.environ:
error('Please add Android SDK path to ANDROID_SDK_ROOT environment variable!')
try:
subprocess.run(['javac', '-version'],
stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
except FileNotFoundError:
error('Please install JDK and make sure \'javac\' is available in PATH')
cpu_count = multiprocessing.cpu_count()
archs = ['armeabi-v7a', 'x86', 'arm64-v8a', 'x86_64']
default_targets = ['magisk', 'magiskinit', 'magiskboot', 'magiskpolicy', 'busybox']
support_targets = default_targets + ['resetprop', 'test']
sdk_path = os.environ['ANDROID_SDK_ROOT']
ndk_root = op.join(sdk_path, 'ndk')
ndk_path = op.join(ndk_root, 'magisk')
ndk_build = op.join(ndk_path, 'ndk-build')
gradlew = op.join('.', 'gradlew' + ('.bat' if is_windows else ''))
adb_path = op.join(sdk_path, 'platform-tools', 'adb' + ('.exe' if is_windows else ''))
native_gen_path = op.join('native', 'out', 'generated')
# Global vars
config = {}
STDOUT = None
build_tools = None
def mv(source, target):
try:
shutil.move(source, target)
vprint(f'mv {source} -> {target}')
except:
pass
def cp(source, target):
try:
shutil.copyfile(source, target)
vprint(f'cp {source} -> {target}')
except:
pass
def rm(file):
try:
os.remove(file)
vprint(f'rm {file}')
except OSError as e:
if e.errno != errno.ENOENT:
raise
def rm_on_error(func, path, _):
# Remove a read-only file on Windows will get "WindowsError: [Error 5] Access is denied"
# Clear the "read-only" and retry
os.chmod(path, stat.S_IWRITE)
os.unlink(path)
def rm_rf(path):
vprint(f'rm -rf {path}')
shutil.rmtree(path, ignore_errors=True, onerror=rm_on_error)
def mkdir(path, mode=0o755):
try:
os.mkdir(path, mode)
except:
pass
def mkdir_p(path, mode=0o755):
os.makedirs(path, mode, exist_ok=True)
def execv(cmd):
return subprocess.run(cmd, stdout=STDOUT)
def system(cmd):
return subprocess.run(cmd, shell=True, stdout=STDOUT)
def cmd_out(cmd):
return subprocess.check_output(cmd).strip().decode('utf-8')
def xz(data):
return lzma.compress(data, preset=9, check=lzma.CHECK_NONE)
def parse_props(file):
props = {}
with open(file, 'r') as f:
for line in [l.strip(' \t\r\n') for l in f]:
if line.startswith('#') or len(line) == 0:
continue
prop = line.split('=')
if len(prop) != 2:
continue
value = prop[1].strip(' \t\r\n')
if len(value) == 0:
continue
props[prop[0].strip(' \t\r\n')] = value
return props
def load_config(args):
commit_hash = cmd_out(['git', 'rev-parse', '--short=8', 'HEAD'])
# Default values
config['version'] = commit_hash
config['outdir'] = 'out'
# Load prop files
if op.exists(args.config):
config.update(parse_props(args.config))
for key, value in parse_props('gradle.properties').items():
if key.startswith('magisk.'):
config[key[7:]] = value
try:
config['versionCode'] = int(config['versionCode'])
except ValueError:
error('Config error: "versionCode" is required to be an integer')
mkdir_p(config['outdir'])
global STDOUT
STDOUT = None if args.verbose else subprocess.DEVNULL
def collect_binary():
for arch in archs:
mkdir_p(op.join('native', 'out', arch))
for bin in support_targets + ['libpreload.so']:
source = op.join('native', 'libs', arch, bin)
target = op.join('native', 'out', arch, bin)
mv(source, target)
def clean_elf():
if is_windows:
elf_cleaner = op.join('tools', 'elf-cleaner.exe')
else:
elf_cleaner = op.join('native', 'out', 'elf-cleaner')
if not op.exists(elf_cleaner):
execv(['g++', '-std=c++11', 'tools/termux-elf-cleaner/termux-elf-cleaner.cpp',
'-o', elf_cleaner])
args = [elf_cleaner]
args.extend(op.join('native', 'out', arch, bin)
for arch in archs for bin in ['magisk', 'magiskpolicy'])
execv(args)
def find_build_tools():
global build_tools
if build_tools:
return build_tools
build_tools_root = op.join(os.environ['ANDROID_SDK_ROOT'], 'build-tools')
ls = os.listdir(build_tools_root)
# Use the latest build tools available
ls.sort()
build_tools = op.join(build_tools_root, ls[-1])
return build_tools
# Unused but keep this code
def sign_zip(unsigned):
if 'keyStore' not in config:
return
msg = '* Signing APK'
apksigner = op.join(find_build_tools(), 'apksigner' + ('.bat' if is_windows else ''))
exec_args = [apksigner, 'sign',
'--ks', config['keyStore'],
'--ks-pass', f'pass:{config["keyStorePass"]}',
'--ks-key-alias', config['keyAlias'],
'--key-pass', f'pass:{config["keyPass"]}',
'--v1-signer-name', 'CERT',
'--v4-signing-enabled', 'false']
if unsigned.endswith('.zip'):
msg = '* Signing zip'
exec_args.extend(['--min-sdk-version', '17',
'--v2-signing-enabled', 'false',
'--v3-signing-enabled', 'false'])
exec_args.append(unsigned)
header(msg)
proc = execv(exec_args)
if proc.returncode != 0:
error('Signing failed!')
def binary_dump(src, var_name):
out_str = f'constexpr unsigned char {var_name}[] = {{'
for i, c in enumerate(xz(src.read())):
if i % 16 == 0:
out_str += '\n'
out_str += f'0x{c:02X},'
out_str += '\n};\n'
return out_str
def run_ndk_build(flags):
os.chdir('native')
proc = system(f'{ndk_build} {flags} -j{cpu_count}')
if proc.returncode != 0:
error('Build binary failed!')
os.chdir('..')
collect_binary()
def write_if_diff(file_name, text):
do_write = True
if op.exists(file_name):
with open(file_name, 'r') as f:
orig = f.read()
do_write = orig != text
if do_write:
with open(file_name, 'w') as f:
f.write(text)
def dump_bin_header(args):
stub = op.join(config['outdir'], f'stub-{"release" if args.release else "debug"}.apk')
if not op.exists(stub):
error('Build stub APK before building "magiskinit"')
mkdir_p(native_gen_path)
with open(stub, 'rb') as src:
text = binary_dump(src, 'manager_xz')
write_if_diff(op.join(native_gen_path, 'binaries.h'), text)
for arch in archs:
preload = op.join('native', 'out', arch, 'libpreload.so')
with open(preload, 'rb') as src:
text = binary_dump(src, 'preload_xz')
write_if_diff(op.join(native_gen_path, f'{arch}_binaries.h'), text)
def dump_flag_header():
flag_txt = textwrap.dedent('''\
#pragma once
#define quote(s) #s
#define str(s) quote(s)
#define MAGISK_FULL_VER MAGISK_VERSION "(" str(MAGISK_VER_CODE) ")"
#define NAME_WITH_VER(name) str(name) " " MAGISK_FULL_VER
''')
flag_txt += f'#define MAGISK_VERSION "{config["version"]}"\n'
flag_txt += f'#define MAGISK_VER_CODE {config["versionCode"]}\n'
flag_txt += f'#define MAGISK_DEBUG {0 if args.release else 1}\n'
mkdir_p(native_gen_path)
write_if_diff(op.join(native_gen_path, 'flags.h'), flag_txt)
def build_binary(args):
# Verify NDK install
try:
with open(op.join(ndk_path, 'ONDK_VERSION'), 'r') as ondk_ver:
assert ondk_ver.read().strip(' \t\r\n') == config['ondkVersion']
except:
error('Unmatched NDK. Please install/upgrade NDK with "build.py ndk"')
if 'target' not in vars(args):
vars(args)['target'] = []
if args.target:
args.target = set(args.target) & set(support_targets)
if not args.target:
return
else:
args.target = default_targets
header('* Building binaries: ' + ' '.join(args.target))
dump_flag_header()
# Build shared executables
flag = ''
if 'magisk' in args.target:
flag += ' B_MAGISK=1'
if 'magiskpolicy' in args.target:
flag += ' B_POLICY=1'
if 'test' in args.target:
flag += ' B_TEST=1'
if 'magiskinit' in args.target:
flag += ' B_PRELOAD=1'
if flag:
run_ndk_build(flag + ' B_SHARED=1')
clean_elf()
# Then build static executables
flag = ''
if 'magiskinit' in args.target:
dump_bin_header(args)
flag += ' B_INIT=1'
if 'resetprop' in args.target:
flag += ' B_PROP=1'
if 'magiskboot' in args.target:
flag += ' B_BOOT=1'
if flag:
run_ndk_build(flag)
if 'busybox' in args.target:
run_ndk_build('B_BB=1')
def build_apk(args, module):
build_type = 'Release' if args.release else 'Debug'
proc = execv([gradlew, f'{module}:assemble{build_type}',
'-PconfigPath=' + op.abspath(args.config)])
if proc.returncode != 0:
error(f'Build {module} failed!')
build_type = build_type.lower()
apk = f'{module}-{build_type}.apk'
source = op.join(module, 'build', 'outputs', 'apk', build_type, apk)
target = op.join(config['outdir'], apk)
mv(source, target)
header('Output: ' + target)
def build_app(args):
header('* Building the Magisk app')
build_apk(args, 'app')
def build_stub(args):
header('* Building the stub app')
build_apk(args, 'stub')
def cleanup(args):
support_targets = {'native', 'java'}
if args.target:
args.target = set(args.target) & support_targets
else:
# If nothing specified, clean everything
args.target = support_targets
if 'native' in args.target:
header('* Cleaning native')
rm_rf(op.join('native', 'out'))
rm_rf(op.join('native', 'libs'))
rm_rf(op.join('native', 'obj'))
if 'java' in args.target:
header('* Cleaning java')
execv([gradlew, 'clean'])
def setup_ndk(args):
os_name = platform.system().lower()
ndk_ver = config['ondkVersion']
url = f'https://github.com/topjohnwu/ondk/releases/download/{ndk_ver}/ondk-{ndk_ver}-{os_name}.tar.gz'
ndk_archive = url.split('/')[-1]
header(f'* Downloading and extracting {ndk_archive}')
with urllib.request.urlopen(url) as response:
with tarfile.open(mode='r|gz', fileobj=response) as tar:
tar.extractall(ndk_root)
rm_rf(ndk_path)
mv(op.join(ndk_root, f'ondk-{ndk_ver}'), ndk_path)
header('* Patching static libs')
for target in ['aarch64-linux-android', 'arm-linux-androideabi',
'i686-linux-android', 'x86_64-linux-android']:
arch = target.split('-')[0]
lib_dir = op.join(
ndk_path, 'toolchains', 'llvm', 'prebuilt', f'{os_name}-x86_64',
'sysroot', 'usr', 'lib', f'{target}', '21')
if not op.exists(lib_dir):
continue
src_dir = op.join('tools', 'ndk-bins', '21', arch)
rm(op.join(src_dir, '.DS_Store'))
shutil.copytree(src_dir, lib_dir, copy_function=cp, dirs_exist_ok=True)
def setup_avd(args):
if not args.skip:
build_binary(args)
build_app(args)
header('* Setting up emulator')
abi = cmd_out([adb_path, 'shell', 'getprop', 'ro.product.cpu.abi'])
proc = execv([adb_path, 'push', f'native/out/{abi}/busybox', 'out/app-debug.apk',
'scripts/avd_magisk.sh', '/data/local/tmp'])
if proc.returncode != 0:
error('adb push failed!')
proc = execv([adb_path, 'shell', 'sh', '/data/local/tmp/avd_magisk.sh'])
if proc.returncode != 0:
error('avd_magisk.sh failed!')
def patch_avd_ramdisk(args):
if not args.skip:
build_binary(args)
build_app(args)
header('* Patching emulator ramdisk.img')
# Create a backup to prevent accidental overwrites
backup = args.ramdisk + '.bak'
if not op.exists(backup):
cp(args.ramdisk, backup)
ini = op.join(op.dirname(args.ramdisk), 'advancedFeatures.ini')
with open(ini, 'r') as f:
adv_ft = f.read()
# Need to turn off system as root
if 'SystemAsRoot = on' in adv_ft:
# Create a backup
cp(ini, ini + '.bak')
adv_ft = adv_ft.replace('SystemAsRoot = on', 'SystemAsRoot = off')
with open(ini, 'w') as f:
f.write(adv_ft)
abi = cmd_out([adb_path, 'shell', 'getprop', 'ro.product.cpu.abi'])
proc = execv([adb_path, 'push', f'native/out/{abi}/busybox', 'out/app-debug.apk',
'scripts/avd_patch.sh', '/data/local/tmp'])
if proc.returncode != 0:
error('adb push failed!')
proc = execv([adb_path, 'push', backup, '/data/local/tmp/ramdisk.cpio.tmp'])
if proc.returncode != 0:
error('adb push failed!')
proc = execv([adb_path, 'shell', 'sh', '/data/local/tmp/avd_patch.sh'])
if proc.returncode != 0:
error('avd_patch.sh failed!')
proc = execv([adb_path, 'pull', '/data/local/tmp/ramdisk.cpio.gz', args.ramdisk])
if proc.returncode != 0:
error('adb pull failed!')
def build_all(args):
build_stub(args)
build_binary(args)
build_app(args)
parser = argparse.ArgumentParser(description='Magisk build script')
parser.set_defaults(func=lambda x: None)
parser.add_argument('-r', '--release', action='store_true',
help='compile in release mode')
parser.add_argument('-v', '--verbose', action='store_true',
help='verbose output')
parser.add_argument('-c', '--config', default='config.prop',
help='custom config file (default: config.prop)')
subparsers = parser.add_subparsers(title='actions')
all_parser = subparsers.add_parser(
'all', help='build everything')
all_parser.set_defaults(func=build_all)
binary_parser = subparsers.add_parser('binary', help='build binaries')
binary_parser.add_argument(
'target', nargs='*', help=f"{', '.join(support_targets)}, \
or empty for defaults ({', '.join(default_targets)})")
binary_parser.set_defaults(func=build_binary)
app_parser = subparsers.add_parser('app', help='build the Magisk app')
app_parser.set_defaults(func=build_app)
stub_parser = subparsers.add_parser('stub', help='build the stub app')
stub_parser.set_defaults(func=build_stub)
avd_parser = subparsers.add_parser(
'emulator', help='setup AVD for development')
avd_parser.add_argument('-s', '--skip', action='store_true',
help='skip building binaries and the app')
avd_parser.set_defaults(func=setup_avd)
avd_patch_parser = subparsers.add_parser(
'avd_patch', help='patch AVD ramdisk.img')
avd_patch_parser.add_argument('ramdisk', help='path to ramdisk.img')
avd_patch_parser.add_argument('-s', '--skip', action='store_true',
help='skip building binaries and the app')
avd_patch_parser.set_defaults(func=patch_avd_ramdisk)
clean_parser = subparsers.add_parser('clean', help='cleanup')
clean_parser.add_argument(
'target', nargs='*', help='native, java, or empty to clean both')
clean_parser.set_defaults(func=cleanup)
ndk_parser = subparsers.add_parser('ndk', help='setup Magisk NDK')
ndk_parser.set_defaults(func=setup_ndk)
if len(sys.argv) == 1:
parser.print_help()
sys.exit(1)
args = parser.parse_args()
load_config(args)
# Call corresponding functions
args.func(args)