checkbuild.py

#!/usr/bin/env python
#
# Copyright (C) 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""Verifies that the build is sane.

Cleans old build artifacts, configures the required environment, determines
build goals, and invokes the build scripts.
"""
import argparse
import datetime
import inspect
import os
import platform
import subprocess
import sys


class ArgParser(argparse.ArgumentParser):
    def __init__(self):
        super(ArgParser, self).__init__(
            description=inspect.getdoc(sys.modules[__name__]))

        self.add_argument(
            '--host-only', action='store_true',
            help='Skip building target components.')

        self.add_argument(
            '--package', action='store_true', dest='package', default=True,
            help='Package the NDK when done building.')
        self.add_argument(
            '--no-package', action='store_false', dest='package',
            help='Do not package the NDK when done building.')

        self.add_argument(
            '--release', default=datetime.date.today().strftime('%Y%m%d'),
            help='Release name. Package will be named android-ndk-RELEASE.')

        system_group = self.add_mutually_exclusive_group()
        system_group.add_argument(
            '--system', choices=('darwin', 'linux', 'windows', 'windows64'),
            help='Build for the given OS.')

        old_choices = (
            'darwin', 'darwin-x86',
            'linux', 'linux-x86',
            'windows',
        )

        system_group.add_argument(
            '--systems', choices=old_choices, dest='system',
            help='Build for the given OS. Deprecated. Use --system instead.')


def invoke_build(script, args=None):
    if args is None:
        args = []
    subprocess.check_call([os.path.join('build/tools', script)] + args)


def build_ndk(out_dir, build_args, host_only):
    build_args = list(build_args)
    build_args.append('--package-dir={}'.format(out_dir))
    build_args.append('--verbose')

    if host_only:
        ndk_dir_arg = '--ndk-dir={}'.format(os.getcwd())
        invoke_build('build-host-prebuilts.sh',
                     build_args + [ndk_dir_arg])
    else:
        invoke_build('rebuild-all-prebuilt.sh', build_args)


def package_ndk(release_name, system, out_dir, build_args):
    package_args = [
        '--out-dir={}'.format(out_dir),
        '--prebuilt-dir={}'.format(out_dir),
        '--release={}'.format(release_name),
        '--systems={}'.format(system),
    ]
    invoke_build('package-release.sh', package_args + build_args)


def main():
    args, build_args = ArgParser().parse_known_args()

    os.chdir(os.path.dirname(os.path.realpath(__file__)))

    # Set ANDROID_BUILD_TOP.
    if 'ANDROID_BUILD_TOP' not in os.environ:
        os.environ['ANDROID_BUILD_TOP'] = os.path.realpath('..')
    build_top = os.getenv('ANDROID_BUILD_TOP')

    system = args.system
    if system != 'windows':
        build_args.append('--try-64')

    if system is not None:
        # TODO(danalbert): Update build server to pass just 'linux'.
        original_system = system
        if system == 'darwin':
            system = 'darwin-x86'
        elif system == 'linux':
            system = 'linux-x86'
        elif system == 'windows64':
            system = 'windows'

        if system not in ('darwin-x86', 'linux-x86', 'windows'):
            sys.exit('Unknown system requested: {}'.format(original_system))

        build_args.append('--systems={}'.format(system))
    else:
        # No flag provided. Use the current OS.
        if platform.system() == 'Darwin':
            system = 'darwin-x86'
        elif platform.system() == 'Linux':
            system = 'linux-x86'
        else:
            sys.exit('Unknown build host: {}'.format(platform.system()))

    build_args.append(os.path.join(build_top, 'toolchain'))

    DEFAULT_OUT_DIR = os.path.join(build_top, 'out/ndk')
    out_dir = os.path.realpath(os.getenv('DIST_DIR', DEFAULT_OUT_DIR))

    invoke_build('dev-cleanup.sh')
    if not args.host_only and system == 'windows':
        # Windows is weird because we have to use the Linux toolchains to build
        # the target modules (since our Windows toolchains obviously only run
        # on Windows). We have to build the target components as part of the
        # Linux build step because otherwise the win32 build will try to use
        # the 32-bit Linux toolchains, which don't exist.
        #
        # Instead, build the whole Linux NDK (host and target), and then build
        # the Windows toolchains.
        linux_build_args = ['--try-64']
        for arg in build_args:
            if arg.startswith('--systems='):
                linux_build_args.append('--systems=linux-x86')
            else:
                linux_build_args.append(arg)
        build_ndk(out_dir, linux_build_args, host_only=False)
        build_ndk(out_dir, build_args, host_only=True)
    else:
        build_ndk(out_dir, build_args, host_only=args.host_only)

    if args.package and not args.host_only:
        package_ndk(args.release, system, out_dir, build_args)


if __name__ == '__main__':
    main()