118 lines
4.2 KiB
Python
118 lines
4.2 KiB
Python
import os.path
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from . import config
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from .loaders.loader import I18nFileLoadError
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from . import translations
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loaders = {}
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PLURALS = ["zero", "one", "few", "many", "other"]
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def register_loader(loader_class, supported_extensions):
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if not hasattr(loader_class, "load_resource"):
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raise ValueError("loader class should have a 'load_resource' method")
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for extension in supported_extensions:
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loaders[extension] = loader_class()
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def load_resource(filename, root_data):
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extension = os.path.splitext(filename)[1][1:]
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if extension not in loaders:
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raise I18nFileLoadError("no loader available for extension {0}".format(extension))
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return getattr(loaders[extension], "load_resource")(filename, root_data)
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def init_loaders():
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init_python_loader()
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if config.yaml_available:
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init_yaml_loader()
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if config.json_available:
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init_json_loader()
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def init_python_loader():
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from .loaders.python_loader import PythonLoader
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register_loader(PythonLoader, ["py"])
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def init_yaml_loader():
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from .loaders.yaml_loader import YamlLoader
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register_loader(YamlLoader, ["yml", "yaml"])
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def init_json_loader():
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from .loaders.json_loader import JsonLoader
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register_loader(JsonLoader, ["json"])
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def load_config(filename):
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settings_data = load_resource(filename, "settings")
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for key, value in settings_data.items():
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config.settings[key] = value
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def get_namespace_from_filepath(filename):
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namespace = os.path.dirname(filename).strip(os.sep).replace(os.sep, config.get('namespace_delimiter'))
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if '{namespace}' in config.get('filename_format'):
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try:
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splitted_filename = os.path.basename(filename).split('.')
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if namespace:
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namespace += config.get('namespace_delimiter')
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namespace += splitted_filename[config.get('filename_format').index('{namespace}')]
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except ValueError:
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raise I18nFileLoadError("incorrect file format.")
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return namespace
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def load_translation_file(filename, base_directory, locale=config.get('locale')):
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skip_locale_root_data = config.get('skip_locale_root_data')
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root_data = None if skip_locale_root_data else locale
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translations_dic = load_resource(os.path.join(base_directory, filename), root_data)
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namespace = get_namespace_from_filepath(filename)
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load_translation_dic(translations_dic, namespace, locale)
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def load_translation_dic(dic, namespace, locale):
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if namespace:
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namespace += config.get('namespace_delimiter')
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for key, value in dic.items():
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if type(value) == dict and len(set(PLURALS).intersection(value)) < 2:
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load_translation_dic(value, namespace + key, locale)
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else:
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translations.add(namespace + key, value, locale)
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def load_directory(directory, locale=config.get('locale')):
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for f in os.listdir(directory):
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path = os.path.join(directory, f)
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if os.path.isfile(path) and path.endswith(config.get('file_format')):
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if '{locale}' in config.get('filename_format') and not locale in f:
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continue
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load_translation_file(f, directory, locale)
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def search_translation(key, locale=config.get('locale')):
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splitted_key = key.split(config.get('namespace_delimiter'))
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if not splitted_key:
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return
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namespace = splitted_key[:-1]
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if not namespace and '{namespace}' not in config.get('filename_format'):
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for directory in config.get('load_path'):
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load_directory(directory, locale)
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else:
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for directory in config.get('load_path'):
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recursive_search_dir(namespace, '', directory, locale)
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def recursive_search_dir(splitted_namespace, directory, root_dir, locale=config.get('locale')):
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if not splitted_namespace:
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return
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seeked_file = config.get('filename_format').format(namespace=splitted_namespace[0], format=config.get('file_format'), locale=locale)
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dir_content = os.listdir(os.path.join(root_dir, directory))
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if seeked_file in dir_content:
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load_translation_file(os.path.join(directory, seeked_file), root_dir, locale)
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elif splitted_namespace[0] in dir_content:
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recursive_search_dir(splitted_namespace[1:], os.path.join(directory, splitted_namespace[0]), root_dir, locale)
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