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Diffstat (limited to '.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/setuptools/config.py')
| -rw-r--r-- | .emacs.d.back/.python-environments/default/lib/python3.7/site-packages/setuptools/config.py | 656 |
1 files changed, 656 insertions, 0 deletions
diff --git a/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/setuptools/config.py b/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/setuptools/config.py new file mode 100644 index 00000000..b6626043 --- /dev/null +++ b/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/setuptools/config.py @@ -0,0 +1,656 @@ +from __future__ import absolute_import, unicode_literals +import io +import os +import sys + +import warnings +import functools +from collections import defaultdict +from functools import partial +from functools import wraps +from importlib import import_module + +from distutils.errors import DistutilsOptionError, DistutilsFileError +from setuptools.extern.packaging.version import LegacyVersion, parse +from setuptools.extern.six import string_types, PY3 + + +__metaclass__ = type + + +def read_configuration( + filepath, find_others=False, ignore_option_errors=False): + """Read given configuration file and returns options from it as a dict. + + :param str|unicode filepath: Path to configuration file + to get options from. + + :param bool find_others: Whether to search for other configuration files + which could be on in various places. + + :param bool ignore_option_errors: Whether to silently ignore + options, values of which could not be resolved (e.g. due to exceptions + in directives such as file:, attr:, etc.). + If False exceptions are propagated as expected. + + :rtype: dict + """ + from setuptools.dist import Distribution, _Distribution + + filepath = os.path.abspath(filepath) + + if not os.path.isfile(filepath): + raise DistutilsFileError( + 'Configuration file %s does not exist.' % filepath) + + current_directory = os.getcwd() + os.chdir(os.path.dirname(filepath)) + + try: + dist = Distribution() + + filenames = dist.find_config_files() if find_others else [] + if filepath not in filenames: + filenames.append(filepath) + + _Distribution.parse_config_files(dist, filenames=filenames) + + handlers = parse_configuration( + dist, dist.command_options, + ignore_option_errors=ignore_option_errors) + + finally: + os.chdir(current_directory) + + return configuration_to_dict(handlers) + + +def _get_option(target_obj, key): + """ + Given a target object and option key, get that option from + the target object, either through a get_{key} method or + from an attribute directly. + """ + getter_name = 'get_{key}'.format(**locals()) + by_attribute = functools.partial(getattr, target_obj, key) + getter = getattr(target_obj, getter_name, by_attribute) + return getter() + + +def configuration_to_dict(handlers): + """Returns configuration data gathered by given handlers as a dict. + + :param list[ConfigHandler] handlers: Handlers list, + usually from parse_configuration() + + :rtype: dict + """ + config_dict = defaultdict(dict) + + for handler in handlers: + for option in handler.set_options: + value = _get_option(handler.target_obj, option) + config_dict[handler.section_prefix][option] = value + + return config_dict + + +def parse_configuration( + distribution, command_options, ignore_option_errors=False): + """Performs additional parsing of configuration options + for a distribution. + + Returns a list of used option handlers. + + :param Distribution distribution: + :param dict command_options: + :param bool ignore_option_errors: Whether to silently ignore + options, values of which could not be resolved (e.g. due to exceptions + in directives such as file:, attr:, etc.). + If False exceptions are propagated as expected. + :rtype: list + """ + options = ConfigOptionsHandler( + distribution, command_options, ignore_option_errors) + options.parse() + + meta = ConfigMetadataHandler( + distribution.metadata, command_options, ignore_option_errors, + distribution.package_dir) + meta.parse() + + return meta, options + + +class ConfigHandler: + """Handles metadata supplied in configuration files.""" + + section_prefix = None + """Prefix for config sections handled by this handler. + Must be provided by class heirs. + + """ + + aliases = {} + """Options aliases. + For compatibility with various packages. E.g.: d2to1 and pbr. + Note: `-` in keys is replaced with `_` by config parser. + + """ + + def __init__(self, target_obj, options, ignore_option_errors=False): + sections = {} + + section_prefix = self.section_prefix + for section_name, section_options in options.items(): + if not section_name.startswith(section_prefix): + continue + + section_name = section_name.replace(section_prefix, '').strip('.') + sections[section_name] = section_options + + self.ignore_option_errors = ignore_option_errors + self.target_obj = target_obj + self.sections = sections + self.set_options = [] + + @property + def parsers(self): + """Metadata item name to parser function mapping.""" + raise NotImplementedError( + '%s must provide .parsers property' % self.__class__.__name__) + + def __setitem__(self, option_name, value): + unknown = tuple() + target_obj = self.target_obj + + # Translate alias into real name. + option_name = self.aliases.get(option_name, option_name) + + current_value = getattr(target_obj, option_name, unknown) + + if current_value is unknown: + raise KeyError(option_name) + + if current_value: + # Already inhabited. Skipping. + return + + skip_option = False + parser = self.parsers.get(option_name) + if parser: + try: + value = parser(value) + + except Exception: + skip_option = True + if not self.ignore_option_errors: + raise + + if skip_option: + return + + setter = getattr(target_obj, 'set_%s' % option_name, None) + if setter is None: + setattr(target_obj, option_name, value) + else: + setter(value) + + self.set_options.append(option_name) + + @classmethod + def _parse_list(cls, value, separator=','): + """Represents value as a list. + + Value is split either by separator (defaults to comma) or by lines. + + :param value: + :param separator: List items separator character. + :rtype: list + """ + if isinstance(value, list): # _get_parser_compound case + return value + + if '\n' in value: + value = value.splitlines() + else: + value = value.split(separator) + + return [chunk.strip() for chunk in value if chunk.strip()] + + @classmethod + def _parse_dict(cls, value): + """Represents value as a dict. + + :param value: + :rtype: dict + """ + separator = '=' + result = {} + for line in cls._parse_list(value): + key, sep, val = line.partition(separator) + if sep != separator: + raise DistutilsOptionError( + 'Unable to parse option value to dict: %s' % value) + result[key.strip()] = val.strip() + + return result + + @classmethod + def _parse_bool(cls, value): + """Represents value as boolean. + + :param value: + :rtype: bool + """ + value = value.lower() + return value in ('1', 'true', 'yes') + + @classmethod + def _exclude_files_parser(cls, key): + """Returns a parser function to make sure field inputs + are not files. + + Parses a value after getting the key so error messages are + more informative. + + :param key: + :rtype: callable + """ + def parser(value): + exclude_directive = 'file:' + if value.startswith(exclude_directive): + raise ValueError( + 'Only strings are accepted for the {0} field, ' + 'files are not accepted'.format(key)) + return value + return parser + + @classmethod + def _parse_file(cls, value): + """Represents value as a string, allowing including text + from nearest files using `file:` directive. + + Directive is sandboxed and won't reach anything outside + directory with setup.py. + + Examples: + file: README.rst, CHANGELOG.md, src/file.txt + + :param str value: + :rtype: str + """ + include_directive = 'file:' + + if not isinstance(value, string_types): + return value + + if not value.startswith(include_directive): + return value + + spec = value[len(include_directive):] + filepaths = (os.path.abspath(path.strip()) for path in spec.split(',')) + return '\n'.join( + cls._read_file(path) + for path in filepaths + if (cls._assert_local(path) or True) + and os.path.isfile(path) + ) + + @staticmethod + def _assert_local(filepath): + if not filepath.startswith(os.getcwd()): + raise DistutilsOptionError( + '`file:` directive can not access %s' % filepath) + + @staticmethod + def _read_file(filepath): + with io.open(filepath, encoding='utf-8') as f: + return f.read() + + @classmethod + def _parse_attr(cls, value, package_dir=None): + """Represents value as a module attribute. + + Examples: + attr: package.attr + attr: package.module.attr + + :param str value: + :rtype: str + """ + attr_directive = 'attr:' + if not value.startswith(attr_directive): + return value + + attrs_path = value.replace(attr_directive, '').strip().split('.') + attr_name = attrs_path.pop() + + module_name = '.'.join(attrs_path) + module_name = module_name or '__init__' + + parent_path = os.getcwd() + if package_dir: + if attrs_path[0] in package_dir: + # A custom path was specified for the module we want to import + custom_path = package_dir[attrs_path[0]] + parts = custom_path.rsplit('/', 1) + if len(parts) > 1: + parent_path = os.path.join(os.getcwd(), parts[0]) + module_name = parts[1] + else: + module_name = custom_path + elif '' in package_dir: + # A custom parent directory was specified for all root modules + parent_path = os.path.join(os.getcwd(), package_dir['']) + sys.path.insert(0, parent_path) + try: + module = import_module(module_name) + value = getattr(module, attr_name) + + finally: + sys.path = sys.path[1:] + + return value + + @classmethod + def _get_parser_compound(cls, *parse_methods): + """Returns parser function to represents value as a list. + + Parses a value applying given methods one after another. + + :param parse_methods: + :rtype: callable + """ + def parse(value): + parsed = value + + for method in parse_methods: + parsed = method(parsed) + + return parsed + + return parse + + @classmethod + def _parse_section_to_dict(cls, section_options, values_parser=None): + """Parses section options into a dictionary. + + Optionally applies a given parser to values. + + :param dict section_options: + :param callable values_parser: + :rtype: dict + """ + value = {} + values_parser = values_parser or (lambda val: val) + for key, (_, val) in section_options.items(): + value[key] = values_parser(val) + return value + + def parse_section(self, section_options): + """Parses configuration file section. + + :param dict section_options: + """ + for (name, (_, value)) in section_options.items(): + try: + self[name] = value + + except KeyError: + pass # Keep silent for a new option may appear anytime. + + def parse(self): + """Parses configuration file items from one + or more related sections. + + """ + for section_name, section_options in self.sections.items(): + + method_postfix = '' + if section_name: # [section.option] variant + method_postfix = '_%s' % section_name + + section_parser_method = getattr( + self, + # Dots in section names are translated into dunderscores. + ('parse_section%s' % method_postfix).replace('.', '__'), + None) + + if section_parser_method is None: + raise DistutilsOptionError( + 'Unsupported distribution option section: [%s.%s]' % ( + self.section_prefix, section_name)) + + section_parser_method(section_options) + + def _deprecated_config_handler(self, func, msg, warning_class): + """ this function will wrap around parameters that are deprecated + + :param msg: deprecation message + :param warning_class: class of warning exception to be raised + :param func: function to be wrapped around + """ + @wraps(func) + def config_handler(*args, **kwargs): + warnings.warn(msg, warning_class) + return func(*args, **kwargs) + + return config_handler + + +class ConfigMetadataHandler(ConfigHandler): + + section_prefix = 'metadata' + + aliases = { + 'home_page': 'url', + 'summary': 'description', + 'classifier': 'classifiers', + 'platform': 'platforms', + } + + strict_mode = False + """We need to keep it loose, to be partially compatible with + `pbr` and `d2to1` packages which also uses `metadata` section. + + """ + + def __init__(self, target_obj, options, ignore_option_errors=False, + package_dir=None): + super(ConfigMetadataHandler, self).__init__(target_obj, options, + ignore_option_errors) + self.package_dir = package_dir + + @property + def parsers(self): + """Metadata item name to parser function mapping.""" + parse_list = self._parse_list + parse_file = self._parse_file + parse_dict = self._parse_dict + exclude_files_parser = self._exclude_files_parser + + return { + 'platforms': parse_list, + 'keywords': parse_list, + 'provides': parse_list, + 'requires': self._deprecated_config_handler( + parse_list, + "The requires parameter is deprecated, please use " + "install_requires for runtime dependencies.", + DeprecationWarning), + 'obsoletes': parse_list, + 'classifiers': self._get_parser_compound(parse_file, parse_list), + 'license': exclude_files_parser('license'), + 'description': parse_file, + 'long_description': parse_file, + 'version': self._parse_version, + 'project_urls': parse_dict, + } + + def _parse_version(self, value): + """Parses `version` option value. + + :param value: + :rtype: str + + """ + version = self._parse_file(value) + + if version != value: + version = version.strip() + # Be strict about versions loaded from file because it's easy to + # accidentally include newlines and other unintended content + if isinstance(parse(version), LegacyVersion): + tmpl = ( + 'Version loaded from {value} does not ' + 'comply with PEP 440: {version}' + ) + raise DistutilsOptionError(tmpl.format(**locals())) + + return version + + version = self._parse_attr(value, self.package_dir) + + if callable(version): + version = version() + + if not isinstance(version, string_types): + if hasattr(version, '__iter__'): + version = '.'.join(map(str, version)) + else: + version = '%s' % version + + return version + + +class ConfigOptionsHandler(ConfigHandler): + + section_prefix = 'options' + + @property + def parsers(self): + """Metadata item name to parser function mapping.""" + parse_list = self._parse_list + parse_list_semicolon = partial(self._parse_list, separator=';') + parse_bool = self._parse_bool + parse_dict = self._parse_dict + + return { + 'zip_safe': parse_bool, + 'use_2to3': parse_bool, + 'include_package_data': parse_bool, + 'package_dir': parse_dict, + 'use_2to3_fixers': parse_list, + 'use_2to3_exclude_fixers': parse_list, + 'convert_2to3_doctests': parse_list, + 'scripts': parse_list, + 'eager_resources': parse_list, + 'dependency_links': parse_list, + 'namespace_packages': parse_list, + 'install_requires': parse_list_semicolon, + 'setup_requires': parse_list_semicolon, + 'tests_require': parse_list_semicolon, + 'packages': self._parse_packages, + 'entry_points': self._parse_file, + 'py_modules': parse_list, + } + + def _parse_packages(self, value): + """Parses `packages` option value. + + :param value: + :rtype: list + """ + find_directives = ['find:', 'find_namespace:'] + trimmed_value = value.strip() + + if trimmed_value not in find_directives: + return self._parse_list(value) + + findns = trimmed_value == find_directives[1] + if findns and not PY3: + raise DistutilsOptionError( + 'find_namespace: directive is unsupported on Python < 3.3') + + # Read function arguments from a dedicated section. + find_kwargs = self.parse_section_packages__find( + self.sections.get('packages.find', {})) + + if findns: + from setuptools import find_namespace_packages as find_packages + else: + from setuptools import find_packages + + return find_packages(**find_kwargs) + + def parse_section_packages__find(self, section_options): + """Parses `packages.find` configuration file section. + + To be used in conjunction with _parse_packages(). + + :param dict section_options: + """ + section_data = self._parse_section_to_dict( + section_options, self._parse_list) + + valid_keys = ['where', 'include', 'exclude'] + + find_kwargs = dict( + [(k, v) for k, v in section_data.items() if k in valid_keys and v]) + + where = find_kwargs.get('where') + if where is not None: + find_kwargs['where'] = where[0] # cast list to single val + + return find_kwargs + + def parse_section_entry_points(self, section_options): + """Parses `entry_points` configuration file section. + + :param dict section_options: + """ + parsed = self._parse_section_to_dict(section_options, self._parse_list) + self['entry_points'] = parsed + + def _parse_package_data(self, section_options): + parsed = self._parse_section_to_dict(section_options, self._parse_list) + + root = parsed.get('*') + if root: + parsed[''] = root + del parsed['*'] + + return parsed + + def parse_section_package_data(self, section_options): + """Parses `package_data` configuration file section. + + :param dict section_options: + """ + self['package_data'] = self._parse_package_data(section_options) + + def parse_section_exclude_package_data(self, section_options): + """Parses `exclude_package_data` configuration file section. + + :param dict section_options: + """ + self['exclude_package_data'] = self._parse_package_data( + section_options) + + def parse_section_extras_require(self, section_options): + """Parses `extras_require` configuration file section. + + :param dict section_options: + """ + parse_list = partial(self._parse_list, separator=';') + self['extras_require'] = self._parse_section_to_dict( + section_options, parse_list) + + def parse_section_data_files(self, section_options): + """Parses `data_files` configuration file section. + + :param dict section_options: + """ + parsed = self._parse_section_to_dict(section_options, self._parse_list) + self['data_files'] = [(k, v) for k, v in parsed.items()] |