def __init__()

in build/generator/gen_base.py [0:0]

• 68 lines of code
• 21 McCabe index (conditional complexity)

  def __init__(self, fname, verfname, options=None):
    # Retrieve major version from the C header, to avoid duplicating it in
    # build.conf - it is required because some file names include it.
    try:
      vsn_parser = getversion.Parser()
      vsn_parser.search('SVN_VER_MAJOR', 'libver')
      self.version = vsn_parser.parse(verfname).libver
    except:
      raise GenError('Unable to extract version.')

    # Read options
    self.release_mode = None
    for opt, val in options:
      if opt == '--release':
        self.release_mode = 1

    # Now read and parse build.conf
    parser = configparser.ConfigParser()
    parser.read_file(open(fname))

    self.conf = build_path(os.path.abspath(fname))

    self.sections = { }
    self.graph = DependencyGraph()

    # Allow derived classes to suppress certain configuration sections
    if not hasattr(self, 'skip_sections'):
      self.skip_sections = { }

    # The 'options' section does not represent a build target,
    # it simply contains global options
    self.skip_sections['options'] = None

    # Read in the global options
    self.includes = \
        _collect_paths(parser.get('options', 'includes'))
    self.private_includes = \
        _collect_paths(parser.get('options', 'private-includes'))
    self.private_built_includes = \
        parser.get('options', 'private-built-includes').split()
    self.scripts = \
        _collect_paths(parser.get('options', 'test-scripts'))
    self.bdb_scripts = \
        _collect_paths(parser.get('options', 'bdb-test-scripts'))

    self.include_wildcards = \
      parser.get('options', 'include-wildcards').split()
    self.swig_lang = parser.get('options', 'swig-languages').split()
    self.swig_dirs = parser.get('options', 'swig-dirs').split()

    # SWIG Generator
    self.swig = generator.swig.Generator(self.conf, "swig")

    # Visual C++ projects - contents are either TargetProject instances,
    # or other targets with an external-project attribute.
    self.projects = []

    # Lists of pathnames of various kinds
    self.test_deps = []      # Non-BDB dependent items to build for the tests
    self.test_progs = []     # Subset of the above to actually execute
    self.test_helpers = []   # $ {test_deps} \setminus {test_progs} $
    self.bdb_test_deps = []  # BDB-dependent items to build for the tests
    self.bdb_test_progs = [] # Subset of the above to actually execute
    self.target_dirs = []    # Directories in which files are built
    self.manpages = []       # Manpages

    # Collect the build targets and have a reproducible ordering
    parser_sections = sorted(parser.sections())
    for section_name in parser_sections:
      if section_name in self.skip_sections:
        continue

      options = {}
      for option in parser.options(section_name):
        options[option] = parser.get(section_name, option)

      type = options.get('type')

      target_class = _build_types.get(type)
      if not target_class:
        raise GenError('ERROR: unknown build type for ' + section_name)

      section = target_class.Section(target_class, section_name, options, self)

      self.sections[section_name] = section

      section.create_targets()

    # Compute intra-library dependencies
    for section in self.sections.values():
      dependencies = (( DT_LINK,   section.options.get('libs',    "") ),
                      ( DT_NONLIB, section.options.get('nonlibs', "") ))

      for dep_type, dep_names in dependencies:
        # Translate string names to Section objects
        dep_section_objects = []
        for section_name in dep_names.split():
          if section_name in self.sections:
            dep_section_objects.append(self.sections[section_name])

        # For each dep_section that this section declares a dependency on,
        # take the targets of this section, and register a dependency on
        # any 'matching' targets of the dep_section.
        #
        # At the moment, the concept of multiple targets per section is
        # employed only for the SWIG modules, which have 1 target
        # per language. Then, 'matching' means being of the same language.
        for dep_section in dep_section_objects:
          for target in section.get_targets():
            self.graph.bulk_add(dep_type, target.name,
                                dep_section.get_dep_targets(target))