| #!/usr/bin/env python3 |
| # Copyright 2019 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. |
| """Checks if the environment is set up correctly for Pigweed.""" |
| |
| import argparse |
| import logging |
| import json |
| import os |
| import shutil |
| import subprocess |
| import sys |
| import tempfile |
| |
| |
| def call_stdout(*args, **kwargs): |
| kwargs.update(stdout=subprocess.PIPE) |
| proc = subprocess.run(*args, **kwargs) |
| return proc.stdout.decode('utf-8') |
| |
| |
| class _Fatal(Exception): |
| pass |
| |
| |
| class DoctorContext: |
| """Base class for other checks.""" |
| def __init__(self, *, strict=False, log=None): |
| self.name = self.__class__.__name__ |
| self._strict = strict |
| self._log = log or logging.getLogger(__name__) |
| self.failures = set() |
| self.curr_checker = None |
| |
| def fatal(self, fmt, *args, **kwargs): |
| """Same as error() but terminates the checkearly.""" |
| self.error(fmt, *args, **kwargs) |
| raise _Fatal() |
| |
| def error(self, fmt, *args, **kwargs): |
| self._log.error(fmt, *args, **kwargs) |
| self.failures.add(self.curr_checker) |
| |
| def warning(self, fmt, *args, **kwargs): |
| if self._strict: |
| self.error(fmt, *args, **kwargs) |
| else: |
| self._log.warning(fmt, *args, **kwargs) |
| |
| def info(self, fmt, *args, **kwargs): |
| self._log.info(fmt, *args, **kwargs) |
| |
| def debug(self, fmt, *args, **kwargs): |
| self._log.debug(fmt, *args, **kwargs) |
| |
| |
| def register_into(dest): |
| def decorate(func): |
| dest.append(func) |
| return func |
| |
| return decorate |
| |
| |
| CHECKS = [] |
| |
| |
| @register_into(CHECKS) |
| def pw_root(ctx: DoctorContext): |
| """Check that environment variable PW_ROOT is set and makes sense.""" |
| root = os.environ.get('PW_ROOT', None) |
| |
| if root is None: |
| ctx.fatal('PW_ROOT not set') |
| |
| git_root = call_stdout(['git', 'rev-parse', '--show-toplevel'], |
| cwd=root).strip() |
| if root != git_root: |
| ctx.error('PW_ROOT (%s) != `git rev-parse --show-toplevel` (%s)', root, |
| git_root) |
| |
| |
| @register_into(CHECKS) |
| def python_version(ctx: DoctorContext): |
| """Check the Python version is correct.""" |
| actual = sys.version_info |
| expected = (3, 8) |
| if actual[0:2] < expected or actual[0] != expected[0]: |
| ctx.error('Python %d.%d.x required, got Python %d.%d.%d', *expected, |
| *actual[0:3]) |
| elif actual[0:2] > expected: |
| ctx.warning('Python %d.%d.x required, got Python %d.%d.%d', *expected, |
| *actual[0:3]) |
| |
| |
| @register_into(CHECKS) |
| def cipd(ctx: DoctorContext): |
| """Check cipd is set up correctly and in use.""" |
| cipd_path = 'pigweed' |
| |
| cipd_exe = shutil.which('cipd') |
| if not cipd_exe: |
| ctx.fatal('cipd not in PATH (%s)', os.environ['PATH']) |
| |
| temp = tempfile.NamedTemporaryFile(prefix='cipd', delete=False) |
| subprocess.run(['cipd', 'acl-check', '-json-output', temp.name, cipd_path], |
| stdout=subprocess.PIPE) |
| if not json.load(temp)['result']: |
| ctx.fatal( |
| "can't access %s CIPD directory, have you run " |
| "'cipd auth-login'?", cipd_path) |
| |
| commands_expected_from_cipd = [ |
| 'arm-none-eabi-gcc', |
| 'gn', |
| 'ninja', |
| 'protoc', |
| ] |
| |
| # TODO(mohrr) get these tools in CIPD for Windows. |
| if os.name == 'posix': |
| commands_expected_from_cipd += [ |
| 'bazel', |
| 'bloaty', |
| 'clang++', |
| ] |
| |
| for command in commands_expected_from_cipd: |
| path = shutil.which(command) |
| if path is None: |
| ctx.error('could not find %s in PATH (%s)', command, |
| os.environ['PATH']) |
| elif 'cipd' not in path: |
| ctx.warning('not using %s from cipd, got %s (path is %s)', command, |
| path, os.environ['PATH']) |
| |
| |
| def main(strict=False, checks=None): |
| """Run all the Check subclasses defined in this file.""" |
| |
| ctx = DoctorContext(strict=strict) |
| |
| if checks is None: |
| checks = tuple(CHECKS) |
| |
| ctx.debug('Doctor running %d checks...', len(checks)) |
| for check in checks: |
| try: |
| ctx.debug('Running %s...', check.__name__) |
| ctx.curr_checker = check.__name__ |
| check(ctx) |
| |
| except _Fatal: |
| pass |
| |
| finally: |
| ctx.curr_checker = None |
| |
| if ctx.failures: |
| ctx.info('Failed checks: %s', ', '.join(ctx.failures)) |
| else: |
| ctx.info('Pigweed environment passes all checks!') |
| return len(ctx.failures) |
| |
| |
| def argument_parser( |
| parser: argparse.ArgumentParser = None) -> argparse.ArgumentParser: |
| """Create argument parser.""" |
| |
| if parser is None: |
| parser = argparse.ArgumentParser(description=__doc__) |
| |
| parser.add_argument( |
| '--strict', |
| action='store_true', |
| help='Run additional checks.', |
| ) |
| |
| return parser |
| |
| |
| if __name__ == '__main__': |
| # By default, display log messages like a simple print statement. |
| logging.basicConfig(format='%(message)s', level=logging.INFO) |
| sys.exit(main(**vars(argument_parser().parse_args()))) |