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syncthing-android/syncthing/build-syncthing.py
2018-07-18 00:17:58 +01:00

132 lines
4.2 KiB
Python

from __future__ import print_function
import os
import os.path
import sys
import subprocess
import platform
SUPPORTED_PYTHON_PLATFORMS = ['Windows', 'Linux', 'Darwin']
BUILD_TARGETS = [
{
'arch': 'arm',
'goarch': 'arm',
'jni_dir': 'armeabi',
'cc': 'arm-linux-androideabi-clang',
},
{
'arch': 'arm64',
'goarch': 'arm64',
'jni_dir': 'arm64-v8a',
'cc': 'aarch64-linux-android-clang',
'min_sdk': 21,
},
{
'arch': 'x86',
'goarch': '386',
'jni_dir': 'x86',
'cc': 'i686-linux-android-clang',
}
]
def fail(message, *args, **kwargs):
print((message % args).format(**kwargs))
sys.exit(1)
def get_min_sdk(project_dir):
with open(os.path.join(project_dir, 'app', 'build.gradle')) as file_handle:
for line in file_handle:
tokens = list(filter(None, line.split()))
if len(tokens) == 2 and tokens[0] == 'minSdkVersion':
return int(tokens[1])
fail('Failed to find minSdkVersion')
def get_ndk_home():
if not os.environ.get('ANDROID_NDK_HOME', ''):
fail('ANDROID_NDK_HOME environment variable not defined')
return os.environ['ANDROID_NDK_HOME']
if platform.system() not in SUPPORTED_PYTHON_PLATFORMS:
fail('Unsupported python platform %s. Supported platforms: %s', platform.system(),
', '.join(SUPPORTED_PYTHON_PLATFORMS))
module_dir = os.path.dirname(os.path.realpath(__file__))
project_dir = os.path.realpath(os.path.join(module_dir, '..'))
# Use seperate build dir so standalone ndk isn't deleted by `gradle clean`
build_dir = os.path.join(module_dir, 'gobuild')
go_build_dir = os.path.join(build_dir, 'go-packages')
syncthing_dir = os.path.join(module_dir, 'src', 'github.com', 'syncthing', 'syncthing')
min_sdk = get_min_sdk(project_dir)
# Make sure all tags are available for git describe
# https://github.com/syncthing/syncthing-android/issues/872
subprocess.check_call([
'git',
'-C',
syncthing_dir,
'fetch',
'--tags'
])
for target in BUILD_TARGETS:
target_min_sdk = str(target.get('min_sdk', min_sdk))
print('Building for', target['arch'])
if os.environ.get('SYNCTHING_ANDROID_PREBUILT', ''):
# The environment variable indicates the SDK and stdlib was prebuilt, set a custom paths.
standalone_ndk_dir = '%s/standalone-ndk/android-%s-%s' % (
get_ndk_home(), target_min_sdk, target['goarch']
)
pkg_argument = []
else:
# Build standalone NDK toolchain if it doesn't exist.
# https://developer.android.com/ndk/guides/standalone_toolchain.html
standalone_ndk_dir = '%s/standalone-ndk/android-%s-%s' % (
build_dir, target_min_sdk, target['goarch']
)
pkg_argument = ['-pkgdir', os.path.join(go_build_dir, target['goarch'])]
if not os.path.isdir(standalone_ndk_dir):
print('Building standalone NDK for', target['arch'], 'API level', target_min_sdk, 'to', standalone_ndk_dir)
subprocess.check_call([
sys.executable,
os.path.join(get_ndk_home(), 'build', 'tools', 'make_standalone_toolchain.py'),
'--arch',
target['arch'],
'--api',
target_min_sdk,
'--install-dir',
standalone_ndk_dir,
'-v'
])
print('Building syncthing')
environ = os.environ.copy()
environ.update({
'GOPATH': module_dir,
'CGO_ENABLED': '1',
'CC': os.path.join(standalone_ndk_dir, 'bin', target['cc'])
})
subprocess.check_call([
'go', 'run', 'build.go', '-goos', 'android', '-goarch', target['goarch'],
] + pkg_argument + ['-no-upgrade', 'build'], env=environ, cwd=syncthing_dir)
# Copy compiled binary to jniLibs folder
target_dir = os.path.join(project_dir, 'app', 'src', 'main', 'jniLibs', target['jni_dir'])
if not os.path.isdir(target_dir):
os.makedirs(target_dir)
target_artifact = os.path.join(target_dir, 'libsyncthing.so')
if os.path.exists(target_artifact):
os.unlink(target_artifact)
os.rename(os.path.join(syncthing_dir, 'syncthing'), target_artifact)
print('Finished build for', target['arch'])
print('All builds finished')