def __init__()

in builder/core/spec.py [0:0]

• 36 lines of code
• 16 McCabe index (conditional complexity)

    def __init__(self, **kwargs):
        for slot in ('host', 'target', 'arch', 'compiler', 'compiler_version'):
            setattr(self, slot, 'default')
        self.downstream = False

        spec = kwargs.get('spec', None)
        if spec:
            if spec.startswith('default'):  # default or default(-{variant})
                _, *rest = spec.split('-')
            elif not '-' in spec:  # just a variant
                rest = [spec]
            else:  # Parse the spec from a single string
                self.host, self.compiler, self.compiler_version, self.target, self.arch, * \
                    rest = spec.split('-')

            for variant in ('downstream',):
                if variant in rest:
                    setattr(self, variant, True)
                else:
                    setattr(self, variant, False)

        # Pull out individual fields. Note this is not in an else to support overriding at construction time
        for slot in ('host', 'target', 'arch', 'compiler', 'compiler_version', 'downstream'):
            if slot in kwargs and kwargs[slot]:
                setattr(self, slot, kwargs[slot])

        # Convert a target tuple into its component parts
        if '-' in self.target:
            self.target, self.arch = self.target.split('-')

        # Convert defaults to be based on running environment
        if self.host == 'default':
            self.host = current_host()
        if self.target == 'default':
            self.target = current_os()
        if self.arch == 'default':
            self.arch = current_arch()
        else:
            self.arch = normalize_arch(self.arch)

        self.name = '-'.join([self.host, self.compiler,
                              self.compiler_version, self.target, self.arch])
        if self.downstream:
            self.name += "-downstream"

        validate_spec(self)