recipe_modules/build/api.py

# Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
# for details. All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE file.

from recipe_engine import recipe_api

class BuildApi(recipe_api.RecipeApi):
  """Recipe module for building the Dart SDK with and without RBE."""

  def __init__(self, properties, *args, **kwargs):
    super(BuildApi, self).__init__(*args, **kwargs)
    self._timeout = properties.timeout or 50 * 60  # 50 minutes
    self._rbe_enabled = not properties.disable_rbe

  def build(self, name='build dart', args=None):
    """Builds dart using the specified args"""
    if not args:  # pragma: no cover
      args = []
    with self.m.depot_tools.on_path(), self.m.context(
        cwd=self.m.path['checkout'], infra_steps=False, env=self._build_env):
      build_py = self.m.path['checkout'].join('tools', 'build.py')
      self.m.step(
          name, ['python3', '-u', build_py] + args, timeout=self._timeout)

  def gn(self, name='gn', args=None):
    """Runs gn.py using the specified args"""
    with self.m.context(env=self._build_env):
      gn_py = self.m.path['checkout'].join('tools', 'gn.py')
      self.m.step(name, ['python3', '-u', gn_py] + args)

  @property
  def _use_rbe(self):
    return self._rbe_enabled and self.m.path.exists(
        self.m.path['checkout'].join('buildtools').join('reclient'))

  @property
  def _build_env(self):
    return {} if not self._use_rbe else {
        'RBE': '1',
        'RBE_exec_strategy': 'remote',
        'RBE_proxy_log_dir': self.m.path['cleanup'],
        'RBE_use_gce_credentials': 'true',
        'RBE_use_application_default_credentials': 'false',
    }