Python BuildFileAddressMapper.from_cache方法代码示例

# 需要导入模块: from pants.build_graph.build_file_address_mapper import BuildFileAddressMapper [as 别名]
# 或者: from pants.build_graph.build_file_address_mapper.BuildFileAddressMapper import from_cache [as 别名]
class GoalRunnerFactory(object):
  def __init__(self, root_dir, options, build_config, run_tracker, reporting, exiter=sys.exit):
    """
    :param str root_dir: The root directory of the pants workspace (aka the "build root").
    :param Options options: The global, pre-initialized Options instance.
    :param BuildConfiguration build_config: A pre-initialized BuildConfiguration instance.
    :param Runtracker run_tracker: The global, pre-initialized/running RunTracker instance.
    :param Reporting reporting: The global, pre-initialized Reporting instance.
    :param func exiter: A function that accepts an exit code value and exits (for tests, Optional).
    """
    self._root_dir = root_dir
    self._options = options
    self._build_config = build_config
    self._run_tracker = run_tracker
    self._reporting = reporting
    self._exiter = exiter

    self._goals = []
    self._targets = []
    self._requested_goals = self._options.goals
    self._target_specs = self._options.target_specs
    self._help_request = self._options.help_request

    self._global_options = options.for_global_scope()
    self._tag = self._global_options.tag
    self._fail_fast = self._global_options.fail_fast
    self._spec_excludes = self._global_options.spec_excludes
    self._explain = self._global_options.explain
    self._kill_nailguns = self._global_options.kill_nailguns

    self._build_file_type = self._get_buildfile_type(self._global_options.build_file_rev)
    self._build_file_parser = BuildFileParser(self._build_config, self._root_dir)
    self._address_mapper = BuildFileAddressMapper(self._build_file_parser, self._build_file_type)
    self._build_graph = BuildGraph(self._address_mapper)
    self._spec_parser = CmdLineSpecParser(
      self._root_dir,
      self._address_mapper,
      spec_excludes=self._spec_excludes,
      exclude_target_regexps=self._global_options.exclude_target_regexp
    )

  def _get_buildfile_type(self, build_file_rev):
    """Selects the BuildFile type for use in a given pants run."""
    if build_file_rev:
      ScmBuildFile.set_rev(build_file_rev)
      ScmBuildFile.set_scm(get_scm())
      return ScmBuildFile
    else:
      return FilesystemBuildFile

  def _expand_goals(self, goals):
    """Check and populate the requested goals for a given run."""
    for goal in goals:
      if self._address_mapper.from_cache(self._root_dir, goal, must_exist=False).file_exists():
        logger.warning("Command-line argument '{0}' is ambiguous and was assumed to be "
                       "a goal. If this is incorrect, disambiguate it with ./{0}.".format(goal))

    if self._help_request:
      help_printer = HelpPrinter(self._options)
      help_printer.print_help()
      self._exiter(0)

    self._goals.extend([Goal.by_name(goal) for goal in goals])

  def _expand_specs(self, specs, fail_fast):
    """Populate the BuildGraph and target list from a set of input specs."""
    with self._run_tracker.new_workunit(name='parse', labels=[WorkUnitLabel.SETUP]):
      def filter_for_tag(tag):
        return lambda target: tag in map(str, target.tags)

      tag_filter = wrap_filters(create_filters(self._tag, filter_for_tag))

      for spec in specs:
        for address in self._spec_parser.parse_addresses(spec, fail_fast):
          self._build_graph.inject_address_closure(address)
          target = self._build_graph.get_target(address)
          if tag_filter(target):
            self._targets.append(target)

  def _is_quiet(self):
    return any(goal.has_task_of_type(QuietTaskMixin) for goal in self._goals) or self._explain

  def _setup_context(self):
    # TODO(John Sirois): Kill when source root registration is lifted out of BUILD files.
    with self._run_tracker.new_workunit(name='bootstrap', labels=[WorkUnitLabel.SETUP]):
      source_root_bootstrapper = SourceRootBootstrapper.global_instance()
      source_root_bootstrapper.bootstrap(self._address_mapper, self._build_file_parser)

    with self._run_tracker.new_workunit(name='setup', labels=[WorkUnitLabel.SETUP]):
      self._expand_goals(self._requested_goals)
      self._expand_specs(self._target_specs, self._fail_fast)

      # Now that we've parsed the bootstrap BUILD files, and know about the SCM system.
      self._run_tracker.run_info.add_scm_info()

      # Update the Reporting settings now that we have options and goal info.
      invalidation_report = self._reporting.update_reporting(self._global_options,
                                                             self._is_quiet(),
                                                             self._run_tracker)

#.........这里部分代码省略.........