| # Copyright 2020 The Pigweed Authors |
| # |
| # 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 |
| # |
| # https://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. |
| """Builds and sets up environment to use host build.""" |
| |
| from __future__ import print_function |
| |
| import os |
| import platform |
| import subprocess |
| import sys |
| import tempfile |
| |
| |
| # TODO(pwbug/135) Move to common utility module. |
| def _check_call(args, **kwargs): |
| stdout = kwargs.get('stdout', sys.stdout) |
| |
| with tempfile.TemporaryFile(mode='w+') as temp: |
| try: |
| kwargs['stdout'] = temp |
| kwargs['stderr'] = subprocess.STDOUT |
| print(args, kwargs, file=temp) |
| subprocess.check_call(args, **kwargs) |
| except subprocess.CalledProcessError: |
| temp.seek(0) |
| stdout.write(temp.read()) |
| raise |
| |
| |
| def install(pw_root, env): |
| host_dir = os.path.join(pw_root, 'out', 'host') |
| env.prepend('PATH', os.path.join(host_dir, 'host_tools')) |
| |
| if platform.system() == 'Linux': |
| env.echo(' skipping host tools setup--got from CIPD') |
| return |
| |
| with env(): |
| try: |
| gn_gen = [ |
| 'gn', |
| 'gen', |
| '--args=pw_target_toolchain="//pw_toolchain:host_clang_og"', |
| host_dir, |
| ] |
| _check_call(gn_gen, cwd=pw_root) |
| |
| _check_call(['ninja', '-C', host_dir], cwd=pw_root) |
| |
| except subprocess.CalledProcessError: |
| env.echo(' warning: host tools failed to build') |