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build.py
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build.py
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#!/usr/bin/env python3
import sys
import os
import subprocess
import argparse
import multiprocessing
import zipfile
import errno
import shutil
import lzma
import platform
import urllib.request
import os.path as op
import stat
from distutils.dir_util import copy_tree
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']
arch64 = ['arm64-v8a', 'x86_64']
support_targets = ['magisk', 'magiskinit', 'magiskboot', 'magiskpolicy', 'resetprop', 'busybox', 'test']
default_targets = ['magisk', 'magiskinit', 'magiskboot', 'busybox']
ndk_root = op.join(os.environ['ANDROID_SDK_ROOT'], '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 ''))
# 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 + arch64:
mkdir_p(op.join('native', 'out', arch))
for bin in support_targets:
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, 'magisk')
for arch in archs + arch64)
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, out, var_name):
out.write(f'constexpr unsigned char {var_name}[] = {{')
for i, c in enumerate(xz(src.read())):
if i % 16 == 0:
out.write('\n')
out.write(f'0x{c:02X},')
out.write('\n};\n')
out.flush()
def run_ndk_build(flags):
os.chdir('native')
proc = system(f'{ndk_build} {base_flags} {flags} -j{cpu_count}')
if proc.returncode != 0:
error('Build binary failed!')
os.chdir('..')
collect_binary()
def dump_bin_headers():
stub = op.join(config['outdir'], 'stub-release.apk')
if not op.exists(stub):
error('Build stub APK before building "magiskinit"')
with open(op.join('native', 'out', 'binaries.h'), 'w') as out:
with open(stub, 'rb') as src:
binary_dump(src, out, 'manager_xz')
def build_binary(args):
# Verify NDK install
props = parse_props(op.join(ndk_path, 'source.properties'))
if props['Pkg.Revision'] != config['fullNdkVersion']:
error('Incorrect NDK. Please install/upgrade NDK with "build.py ndk"')
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))
update_flags = False
flags = op.join('native', 'jni', 'include', 'flags.hpp')
flags_stat = os.stat(flags)
if op.exists(args.config):
if os.stat(args.config).st_mtime_ns > flags_stat.st_mtime_ns:
update_flags = True
if os.stat('gradle.properties').st_mtime_ns > flags_stat.st_mtime_ns:
update_flags = True
if update_flags:
os.utime(flags)
# Basic flags
global base_flags
base_flags = f'MAGISK_VERSION={config["version"]} MAGISK_VER_CODE={config["versionCode"]}'
if not args.release:
base_flags += ' MAGISK_DEBUG=1'
if 'magisk' in args.target:
run_ndk_build('B_MAGISK=1 B_64BIT=1')
clean_elf()
if 'test' in args.target:
run_ndk_build('B_TEST=1 B_64BIT=1')
if 'busybox' in args.target:
run_ndk_build('B_BB=1')
# 32-bit only targets can be built in one command
flag = ''
if 'magiskinit' in args.target:
dump_bin_headers()
flag += ' B_INIT=1'
if 'magiskpolicy' in args.target:
flag += ' B_POLICY=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)
def build_apk(args, module):
build_type = 'Release' if args.release or module == 'stub' 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)
return target
def build_app(args):
header('* Building the Magisk app')
build_apk(args, 'app')
def build_stub(args):
header('* Building stub APK')
build_apk(args, 'stub')
def build_snet(args):
if not op.exists(op.join('stub', 'src', 'main', 'java', 'com', 'topjohnwu', 'snet')):
error('snet sources have to be bind mounted on top of the stub folder')
header('* Building snet extension')
proc = execv([gradlew, 'stub:assembleRelease'])
if proc.returncode != 0:
error('Build snet extention failed!')
source = op.join('stub', 'build', 'outputs', 'apk',
'release', 'stub-release.apk')
target = op.join(config['outdir'], 'snet.jar')
# Extract classes.dex
with zipfile.ZipFile(target, 'w', compression=zipfile.ZIP_DEFLATED, allowZip64=False) as zout:
with zipfile.ZipFile(source) as zin:
zout.writestr('classes.dex', zin.read('classes.dex'))
rm(source)
header('Output: ' + target)
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['ndkVersion']
url = f'https://dl.google.com/android/repository/android-ndk-r{ndk_ver}-{os_name}-x86_64.zip'
ndk_zip = url.split('/')[-1]
header(f'* Downloading {ndk_zip}')
with urllib.request.urlopen(url) as response, open(ndk_zip, 'wb') as out_file:
shutil.copyfileobj(response, out_file)
header('* Extracting NDK zip')
rm_rf(ndk_path)
with zipfile.ZipFile(ndk_zip, 'r') as zf:
for info in zf.infolist():
print(f'Extracting {info.filename}')
if info.external_attr == 2716663808: # symlink
src = zf.read(info).decode("utf-8")
dest = op.join(ndk_root, info.filename)
os.symlink(src, dest)
continue
extracted_path = zf.extract(info, ndk_root)
if info.create_system == 3: # ZIP_UNIX_SYSTEM = 3
unix_attributes = info.external_attr >> 16
if unix_attributes:
os.chmod(extracted_path, unix_attributes)
mv(op.join(ndk_root, f'android-ndk-r{ndk_ver}'), ndk_path)
header('* Patching static libs')
for api in ['16', '21']:
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}', api)
if not op.exists(lib_dir):
continue
src_dir = op.join('tools', 'ndk-bins', api, arch)
rm(op.join(src_dir, '.DS_Store'))
for path in copy_tree(src_dir, lib_dir):
vprint(f'Replaced {path}')
def build_all(args):
vars(args)['target'] = []
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 stub APK')
stub_parser.set_defaults(func=build_stub)
# Need to bind mount snet sources on top of stub folder
# Note: source code for the snet extension is *NOT* public
snet_parser = subparsers.add_parser(
'snet', help='build snet extension')
snet_parser.set_defaults(func=build_snet)
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)