def loadYaml(filename=None, importedAlready=None):
""" Loads the YAML and constructs a configuration from it. """
if not filename:
filename = _findYaml()
if not filename:
raise exceptions.YamlFileNotFoundError('fsm.yaml')
try:
yamlFile = open(filename)
except IOError:
raise exceptions.YamlFileNotFoundError(filename)
try:
configDict = yaml.load(yamlFile.read())
finally:
yamlFile.close()
return Configuration(configDict, importedAlready=importedAlready)
def _importYaml(self, importYamlFile, importedAlready=None):
""" Imports a yaml file """
yamlFile = _findYaml(yamlNames=[importYamlFile])
if not yamlFile:
raise exceptions.YamlFileNotFoundError(importYamlFile)
if yamlFile in importedAlready:
raise exceptions.YamlFileCircularImportError(importYamlFile)
importedAlready.append(yamlFile)
importedConfig = loadYaml(filename=yamlFile, importedAlready=importedAlready)
self.__addMachinesFromImportedConfig(importedConfig)