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isort
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settings.py
"""isort/settings.py. Defines how the default settings for isort should be loaded """ import configparser import fnmatch import os import posixpath import re import stat import subprocess # nosec: Needed for gitignore support. import sys from dataclasses import dataclass, field from functools import lru_cache from pathlib import Path from typing import ( TYPE_CHECKING, Any, Callable, Dict, FrozenSet, Iterable, List, Optional, Pattern, Set, Tuple, Type, Union, ) from warnings import warn from . import sorting, stdlibs from .exceptions import ( FormattingPluginDoesNotExist, InvalidSettingsPath, ProfileDoesNotExist, SortingFunctionDoesNotExist, UnsupportedSettings, ) from .profiles import profiles as profiles from .sections import DEFAULT as SECTION_DEFAULTS from .sections import FIRSTPARTY, FUTURE, LOCALFOLDER, STDLIB, THIRDPARTY from .utils import Trie from .wrap_modes import WrapModes from .wrap_modes import from_string as wrap_mode_from_string if TYPE_CHECKING: tomli: Any else: from ._vendored import tomli _SHEBANG_RE = re.compile(rb"^#!.*\bpython[23w]?\b") CYTHON_EXTENSIONS = frozenset({"pyx", "pxd"}) SUPPORTED_EXTENSIONS = frozenset({"py", "pyi", *CYTHON_EXTENSIONS}) BLOCKED_EXTENSIONS = frozenset({"pex"}) FILE_SKIP_COMMENTS: Tuple[str, ...] = ( "isort:" + "skip_file", "isort: " + "skip_file", ) # Concatenated to avoid this file being skipped MAX_CONFIG_SEARCH_DEPTH: int = 25 # The number of parent directories to for a config file within STOP_CONFIG_SEARCH_ON_DIRS: Tuple[str, ...] = (".git", ".hg") VALID_PY_TARGETS: Tuple[str, ...] = tuple( target.replace("py", "") for target in dir(stdlibs) if not target.startswith("_") ) CONFIG_SOURCES: Tuple[str, ...] = ( ".isort.cfg", "pyproject.toml", "setup.cfg", "tox.ini", ".editorconfig", ) DEFAULT_SKIP: FrozenSet[str] = frozenset( { ".venv", "venv", ".tox", ".eggs", ".git", ".hg", ".mypy_cache", ".nox", ".svn", ".bzr", "_build", "buck-out", "build", "dist", ".pants.d", ".direnv", "node_modules", "__pypackages__", } ) CONFIG_SECTIONS: Dict[str, Tuple[str, ...]] = { ".isort.cfg": ("settings", "isort"), "pyproject.toml": ("tool.isort",), "setup.cfg": ("isort", "tool:isort"), "tox.ini": ("isort", "tool:isort"), ".editorconfig": ("*", "*.py", "**.py", "*.{py}"), } FALLBACK_CONFIG_SECTIONS: Tuple[str, ...] = ("isort", "tool:isort", "tool.isort") IMPORT_HEADING_PREFIX = "import_heading_" IMPORT_FOOTER_PREFIX = "import_footer_" KNOWN_PREFIX = "known_" KNOWN_SECTION_MAPPING: Dict[str, str] = { STDLIB: "STANDARD_LIBRARY", FUTURE: "FUTURE_LIBRARY", FIRSTPARTY: "FIRST_PARTY", THIRDPARTY: "THIRD_PARTY", LOCALFOLDER: "LOCAL_FOLDER", } RUNTIME_SOURCE = "runtime" DEPRECATED_SETTINGS = ("not_skip", "keep_direct_and_as_imports") _STR_BOOLEAN_MAPPING = { "y": True, "yes": True, "t": True, "on": True, "1": True, "true": True, "n": False, "no": False, "f": False, "off": False, "0": False, "false": False, } @dataclass(frozen=True) class _Config: """Defines the data schema and defaults used for isort configuration. NOTE: known lists, such as known_standard_library, are intentionally not complete as they are dynamically determined later on. """ py_version: str = "3" force_to_top: FrozenSet[str] = frozenset() skip: FrozenSet[str] = DEFAULT_SKIP extend_skip: FrozenSet[str] = frozenset() skip_glob: FrozenSet[str] = frozenset() extend_skip_glob: FrozenSet[str] = frozenset() skip_gitignore: bool = False line_length: int = 79 wrap_length: int = 0 line_ending: str = "" sections: Tuple[str, ...] = SECTION_DEFAULTS no_sections: bool = False known_future_library: FrozenSet[str] = frozenset(("__future__",)) known_third_party: FrozenSet[str] = frozenset() known_first_party: FrozenSet[str] = frozenset() known_local_folder: FrozenSet[str] = frozenset() known_standard_library: FrozenSet[str] = frozenset() extra_standard_library: FrozenSet[str] = frozenset() known_other: Dict[str, FrozenSet[str]] = field(default_factory=dict) multi_line_output: WrapModes = WrapModes.GRID # type: ignore forced_separate: Tuple[str, ...] = () indent: str = " " * 4 comment_prefix: str = " #" length_sort: bool = False length_sort_straight: bool = False length_sort_sections: FrozenSet[str] = frozenset() add_imports: FrozenSet[str] = frozenset() remove_imports: FrozenSet[str] = frozenset() append_only: bool = False reverse_relative: bool = False force_single_line: bool = False single_line_exclusions: Tuple[str, ...] = () default_section: str = THIRDPARTY import_headings: Dict[str, str] = field(default_factory=dict) import_footers: Dict[str, str] = field(default_factory=dict) balanced_wrapping: bool = False use_parentheses: bool = False order_by_type: bool = True atomic: bool = False lines_before_imports: int = -1 lines_after_imports: int = -1 lines_between_sections: int = 1 lines_between_types: int = 0 combine_as_imports: bool = False combine_star: bool = False include_trailing_comma: bool = False from_first: bool = False verbose: bool = False quiet: bool = False force_adds: bool = False force_alphabetical_sort_within_sections: bool = False force_alphabetical_sort: bool = False force_grid_wrap: int = 0 force_sort_within_sections: bool = False lexicographical: bool = False group_by_package: bool = False ignore_whitespace: bool = False no_lines_before: FrozenSet[str] = frozenset() no_inline_sort: bool = False ignore_comments: bool = False case_sensitive: bool = False sources: Tuple[Dict[str, Any], ...] = () virtual_env: str = "" conda_env: str = "" ensure_newline_before_comments: bool = False directory: str = "" profile: str = "" honor_noqa: bool = False src_paths: Tuple[Path, ...] = () old_finders: bool = False remove_redundant_aliases: bool = False float_to_top: bool = False filter_files: bool = False formatter: str = "" formatting_function: Optional[Callable[[str, str, object], str]] = None color_output: bool = False treat_comments_as_code: FrozenSet[str] = frozenset() treat_all_comments_as_code: bool = False supported_extensions: FrozenSet[str] = SUPPORTED_EXTENSIONS blocked_extensions: FrozenSet[str] = BLOCKED_EXTENSIONS constants: FrozenSet[str] = frozenset() classes: FrozenSet[str] = frozenset() variables: FrozenSet[str] = frozenset() dedup_headings: bool = False only_sections: bool = False only_modified: bool = False combine_straight_imports: bool = False auto_identify_namespace_packages: bool = True namespace_packages: FrozenSet[str] = frozenset() follow_links: bool = True indented_import_headings: bool = True honor_case_in_force_sorted_sections: bool = False sort_relative_in_force_sorted_sections: bool = False overwrite_in_place: bool = False reverse_sort: bool = False star_first: bool = False import_dependencies = Dict[str, str] git_ls_files: Dict[Path, Set[str]] = field(default_factory=dict) format_error: str = "{error}: {message}" format_success: str = "{success}: {message}" sort_order: str = "natural" sort_reexports: bool = False split_on_trailing_comma: bool = False def __post_init__(self) -> None: py_version = self.py_version if py_version == "auto": # pragma: no cover if sys.version_info.major == 2 and sys.version_info.minor <= 6: py_version = "2" elif sys.version_info.major == 3 and ( sys.version_info.minor <= 5 or sys.version_info.minor >= 12 ): py_version = "3" else: py_version = f"{sys.version_info.major}{sys.version_info.minor}" if py_version not in VALID_PY_TARGETS: raise ValueError( f"The python version {py_version} is not supported. " "You can set a python version with the -py or --python-version flag. " f"The following versions are supported: {VALID_PY_TARGETS}" ) if py_version != "all": object.__setattr__(self, "py_version", f"py{py_version}") if not self.known_standard_library: object.__setattr__( self, "known_standard_library", frozenset(getattr(stdlibs, self.py_version).stdlib) ) if self.multi_line_output == WrapModes.VERTICAL_GRID_GROUPED_NO_COMMA: # type: ignore vertical_grid_grouped = WrapModes.VERTICAL_GRID_GROUPED # type: ignore object.__setattr__(self, "multi_line_output", vertical_grid_grouped) if self.force_alphabetical_sort: object.__setattr__(self, "force_alphabetical_sort_within_sections", True) object.__setattr__(self, "no_sections", True) object.__setattr__(self, "lines_between_types", 1) object.__setattr__(self, "from_first", True) if self.wrap_length > self.line_length: raise ValueError( "wrap_length must be set lower than or equal to line_length: " f"{self.wrap_length} > {self.line_length}." ) def __hash__(self) -> int: return id(self) _DEFAULT_SETTINGS = {**vars(_Config()), "source": "defaults"} class Config(_Config): def __init__( self, settings_file: str = "", settings_path: str = "", config: Optional[_Config] = None, **config_overrides: Any, ): self._known_patterns: Optional[List[Tuple[Pattern[str], str]]] = None self._section_comments: Optional[Tuple[str, ...]] = None self._section_comments_end: Optional[Tuple[str, ...]] = None self._skips: Optional[FrozenSet[str]] = None self._skip_globs: Optional[FrozenSet[str]] = None self._sorting_function: Optional[Callable[..., List[str]]] = None if config: config_vars = vars(config).copy() config_vars.update(config_overrides) config_vars["py_version"] = config_vars["py_version"].replace("py", "") config_vars.pop("_known_patterns") config_vars.pop("_section_comments") config_vars.pop("_section_comments_end") config_vars.pop("_skips") config_vars.pop("_skip_globs") config_vars.pop("_sorting_function") super().__init__(**config_vars) return # We can't use self.quiet to conditionally show warnings before super.__init__() is called # at the end of this method. _Config is also frozen so setting self.quiet isn't possible. # Therefore we extract quiet early here in a variable and use that in warning conditions. quiet = config_overrides.get("quiet", False) sources: List[Dict[str, Any]] = [_DEFAULT_SETTINGS] config_settings: Dict[str, Any] project_root: str if settings_file: config_settings = _get_config_data( settings_file, CONFIG_SECTIONS.get(os.path.basename(settings_file), FALLBACK_CONFIG_SECTIONS), ) project_root = os.path.dirname(settings_file) if not config_settings and not quiet: warn( f"A custom settings file was specified: {settings_file} but no configuration " "was found inside. This can happen when [settings] is used as the config " "header instead of [isort]. " "See: https://pycqa.github.io/isort/docs/configuration/config_files" "/#custom_config_files for more information." ) elif settings_path: if not os.path.exists(settings_path): raise InvalidSettingsPath(settings_path) settings_path = os.path.abspath(settings_path) project_root, config_settings = _find_config(settings_path) else: config_settings = {} project_root = os.getcwd() profile_name = config_overrides.get("profile", config_settings.get("profile", "")) profile: Dict[str, Any] = {} if profile_name: if profile_name not in profiles: import pkg_resources for plugin in pkg_resources.iter_entry_points("isort.profiles"): profiles.setdefault(plugin.name, plugin.load()) if profile_name not in profiles: raise ProfileDoesNotExist(profile_name) profile = profiles[profile_name].copy() profile["source"] = f"{profile_name} profile" sources.append(profile) if config_settings: sources.append(config_settings) if config_overrides: config_overrides["source"] = RUNTIME_SOURCE sources.append(config_overrides) combined_config = {**profile, **config_settings, **config_overrides} if "indent" in combined_config: indent = str(combined_config["indent"]) if indent.isdigit(): indent = " " * int(indent) else: indent = indent.strip("'").strip('"') if indent.lower() == "tab": indent = "\t" combined_config["indent"] = indent known_other = {} import_headings = {} import_footers = {} for key, value in tuple(combined_config.items()): # Collect all known sections beyond those that have direct entries if key.startswith(KNOWN_PREFIX) and key not in ( "known_standard_library", "known_future_library", "known_third_party", "known_first_party", "known_local_folder", ): import_heading = key[len(KNOWN_PREFIX) :].lower() maps_to_section = import_heading.upper() combined_config.pop(key) if maps_to_section in KNOWN_SECTION_MAPPING: section_name = f"known_{KNOWN_SECTION_MAPPING[maps_to_section].lower()}" if section_name in combined_config and not quiet: warn( f"Can't set both {key} and {section_name} in the same config file.\n" f"Default to {section_name} if unsure." "\n\n" "See: https://pycqa.github.io/isort/" "#custom-sections-and-ordering." ) else: combined_config[section_name] = frozenset(value) else: known_other[import_heading] = frozenset(value) if maps_to_section not in combined_config.get("sections", ()) and not quiet: warn( f"`{key}` setting is defined, but {maps_to_section} is not" " included in `sections` config option:" f" {combined_config.get('sections', SECTION_DEFAULTS)}.\n\n" "See: https://pycqa.github.io/isort/" "#custom-sections-and-ordering." ) if key.startswith(IMPORT_HEADING_PREFIX): import_headings[key[len(IMPORT_HEADING_PREFIX) :].lower()] = str(value) if key.startswith(IMPORT_FOOTER_PREFIX): import_footers[key[len(IMPORT_FOOTER_PREFIX) :].lower()] = str(value) # Coerce all provided config values into their correct type default_value = _DEFAULT_SETTINGS.get(key, None) if default_value is None: continue combined_config[key] = type(default_value)(value) for section in combined_config.get("sections", ()): if section in SECTION_DEFAULTS: continue if not section.lower() in known_other: config_keys = ", ".join(known_other.keys()) warn( f"`sections` setting includes {section}, but no known_{section.lower()} " "is defined. " f"The following known_SECTION config options are defined: {config_keys}." ) if "directory" not in combined_config: combined_config["directory"] = ( os.path.dirname(config_settings["source"]) if config_settings.get("source", None) else os.getcwd() ) path_root = Path(combined_config.get("directory", project_root)).resolve() path_root = path_root if path_root.is_dir() else path_root.parent if "src_paths" not in combined_config: combined_config["src_paths"] = (path_root / "src", path_root) else: src_paths: List[Path] = [] for src_path in combined_config.get("src_paths", ()): full_paths = ( path_root.glob(src_path) if "*" in str(src_path) else [path_root / src_path] ) for path in full_paths: if path not in src_paths: src_paths.append(path) combined_config["src_paths"] = tuple(src_paths) if "formatter" in combined_config: import pkg_resources for plugin in pkg_resources.iter_entry_points("isort.formatters"): if plugin.name == combined_config["formatter"]: combined_config["formatting_function"] = plugin.load() break else: raise FormattingPluginDoesNotExist(combined_config["formatter"]) # Remove any config values that are used for creating config object but # aren't defined in dataclass combined_config.pop("source", None) combined_config.pop("sources", None) combined_config.pop("runtime_src_paths", None) deprecated_options_used = [ option for option in combined_config if option in DEPRECATED_SETTINGS ] if deprecated_options_used: for deprecated_option in deprecated_options_used: combined_config.pop(deprecated_option) if not quiet: warn( "W0503: Deprecated config options were used: " f"{', '.join(deprecated_options_used)}." "Please see the 5.0.0 upgrade guide: " "https://pycqa.github.io/isort/docs/upgrade_guides/5.0.0.html" ) if known_other: combined_config["known_other"] = known_other if import_headings: for import_heading_key in import_headings: combined_config.pop(f"{IMPORT_HEADING_PREFIX}{import_heading_key}") combined_config["import_headings"] = import_headings if import_footers: for import_footer_key in import_footers: combined_config.pop(f"{IMPORT_FOOTER_PREFIX}{import_footer_key}") combined_config["import_footers"] = import_footers unsupported_config_errors = {} for option in set(combined_config.keys()).difference( getattr(_Config, "__dataclass_fields__", {}).keys() ): for source in reversed(sources): if option in source: unsupported_config_errors[option] = { "value": source[option], "source": source["source"], } if unsupported_config_errors: raise UnsupportedSettings(unsupported_config_errors) super().__init__(sources=tuple(sources), **combined_config) def is_supported_filetype(self, file_name: str) -> bool: _root, ext = os.path.splitext(file_name) ext = ext.lstrip(".") if ext in self.supported_extensions: return True if ext in self.blocked_extensions: return False # Skip editor backup files. if file_name.endswith("~"): return False try: if stat.S_ISFIFO(os.stat(file_name).st_mode): return False except OSError: pass try: with open(file_name, "rb") as fp: line = fp.readline(100) except OSError: return False else: return bool(_SHEBANG_RE.match(line)) def _check_folder_git_ls_files(self, folder: str) -> Optional[Path]: env = {**os.environ, "LANG": "C.UTF-8"} try: topfolder_result = subprocess.check_output( # nosec # skipcq: PYL-W1510 ["git", "-C", folder, "rev-parse", "--show-toplevel"], encoding="utf-8", env=env ) except subprocess.CalledProcessError: return None git_folder = Path(topfolder_result.rstrip()).resolve() # files committed to git tracked_files = ( subprocess.check_output( # nosec # skipcq: PYL-W1510 ["git", "-C", str(git_folder), "ls-files", "-z"], encoding="utf-8", env=env, ) .rstrip("\0") .split("\0") ) # files that haven't been committed yet, but aren't ignored tracked_files_others = ( subprocess.check_output( # nosec # skipcq: PYL-W1510 ["git", "-C", str(git_folder), "ls-files", "-z", "--others", "--exclude-standard"], encoding="utf-8", env=env, ) .rstrip("\0") .split("\0") ) self.git_ls_files[git_folder] = { str(git_folder / Path(f)) for f in tracked_files + tracked_files_others } return git_folder def is_skipped(self, file_path: Path) -> bool: """Returns True if the file and/or folder should be skipped based on current settings.""" if self.directory and Path(self.directory) in file_path.resolve().parents: file_name = os.path.relpath(file_path.resolve(), self.directory) else: file_name = str(file_path) os_path = str(file_path) normalized_path = os_path.replace("\\", "/") if normalized_path[1:2] == ":": normalized_path = normalized_path[2:] for skip_path in self.skips: if posixpath.abspath(normalized_path) == posixpath.abspath( skip_path.replace("\\", "/") ): return True position = os.path.split(file_name) while position[1]: if position[1] in self.skips: return True position = os.path.split(position[0]) for sglob in self.skip_globs: if fnmatch.fnmatch(file_name, sglob) or fnmatch.fnmatch("/" + file_name, sglob): return True if not (os.path.isfile(os_path) or os.path.isdir(os_path) or os.path.islink(os_path)): return True if self.skip_gitignore: if file_path.name == ".git": # pragma: no cover return True git_folder = None file_paths = [file_path, file_path.resolve()] for folder in self.git_ls_files: if any(folder in path.parents for path in file_paths): git_folder = folder break else: git_folder = self._check_folder_git_ls_files(str(file_path.parent)) # git_ls_files are good files you should parse. If you're not in the allow list, skip. if ( git_folder and not file_path.is_dir() and str(file_path.resolve()) not in self.git_ls_files[git_folder] ): return True return False @property def known_patterns(self) -> List[Tuple[Pattern[str], str]]: if self._known_patterns is not None: return self._known_patterns self._known_patterns = [] pattern_sections = [STDLIB] + [section for section in self.sections if section != STDLIB] for placement in reversed(pattern_sections): known_placement = KNOWN_SECTION_MAPPING.get(placement, placement).lower() config_key = f"{KNOWN_PREFIX}{known_placement}" known_modules = getattr(self, config_key, self.known_other.get(known_placement, ())) extra_modules = getattr(self, f"extra_{known_placement}", ()) all_modules = set(extra_modules).union(known_modules) known_patterns = [ pattern for known_pattern in all_modules for pattern in self._parse_known_pattern(known_pattern) ] for known_pattern in known_patterns: regexp = "^" + known_pattern.replace("*", ".*").replace("?", ".?") + "$" self._known_patterns.append((re.compile(regexp), placement)) return self._known_patterns @property def section_comments(self) -> Tuple[str, ...]: if self._section_comments is not None: return self._section_comments self._section_comments = tuple(f"# {heading}" for heading in self.import_headings.values()) return self._section_comments @property def section_comments_end(self) -> Tuple[str, ...]: if self._section_comments_end is not None: return self._section_comments_end self._section_comments_end = tuple(f"# {footer}" for footer in self.import_footers.values()) return self._section_comments_end @property def skips(self) -> FrozenSet[str]: if self._skips is not None: return self._skips self._skips = self.skip.union(self.extend_skip) return self._skips @property def skip_globs(self) -> FrozenSet[str]: if self._skip_globs is not None: return self._skip_globs self._skip_globs = self.skip_glob.union(self.extend_skip_glob) return self._skip_globs @property def sorting_function(self) -> Callable[..., List[str]]: if self._sorting_function is not None: return self._sorting_function if self.sort_order == "natural": self._sorting_function = sorting.naturally elif self.sort_order == "native": self._sorting_function = sorted else: available_sort_orders = ["natural", "native"] import pkg_resources for sort_plugin in pkg_resources.iter_entry_points("isort.sort_function"): available_sort_orders.append(sort_plugin.name) if sort_plugin.name == self.sort_order: self._sorting_function = sort_plugin.load() break else: raise SortingFunctionDoesNotExist(self.sort_order, available_sort_orders) return self._sorting_function def _parse_known_pattern(self, pattern: str) -> List[str]: """Expand pattern if identified as a directory and return found sub packages""" if pattern.endswith(os.path.sep): patterns = [ filename for filename in os.listdir(os.path.join(self.directory, pattern)) if os.path.isdir(os.path.join(self.directory, pattern, filename)) ] else: patterns = [pattern] return patterns def _get_str_to_type_converter(setting_name: str) -> Union[Callable[[str], Any], Type[Any]]: type_converter: Union[Callable[[str], Any], Type[Any]] = type( _DEFAULT_SETTINGS.get(setting_name, "") ) if type_converter == WrapModes: type_converter = wrap_mode_from_string return type_converter def _as_list(value: str) -> List[str]: if isinstance(value, list): return [item.strip() for item in value] filtered = [item.strip() for item in value.replace("\n", ",").split(",") if item.strip()] return filtered def _abspaths(cwd: str, values: Iterable[str]) -> Set[str]: paths = { os.path.join(cwd, value) if not value.startswith(os.path.sep) and value.endswith(os.path.sep) else value for value in values } return paths @lru_cache() def _find_config(path: str) -> Tuple[str, Dict[str, Any]]: current_directory = path tries = 0 while current_directory and tries < MAX_CONFIG_SEARCH_DEPTH: for config_file_name in CONFIG_SOURCES: potential_config_file = os.path.join(current_directory, config_file_name) if os.path.isfile(potential_config_file): config_data: Dict[str, Any] try: config_data = _get_config_data( potential_config_file, CONFIG_SECTIONS[config_file_name] ) except Exception: warn(f"Failed to pull configuration information from {potential_config_file}") config_data = {} if config_data: return (current_directory, config_data) for stop_dir in STOP_CONFIG_SEARCH_ON_DIRS: if os.path.isdir(os.path.join(current_directory, stop_dir)): return (current_directory, {}) new_directory = os.path.split(current_directory)[0] if new_directory == current_directory: break current_directory = new_directory tries += 1 return (path, {}) @lru_cache() def find_all_configs(path: str) -> Trie: """ Looks for config files in the path provided and in all of its sub-directories. Parses and stores any config file encountered in a trie and returns the root of the trie """ trie_root = Trie("default", {}) for (dirpath, _, _) in os.walk(path): for config_file_name in CONFIG_SOURCES: potential_config_file = os.path.join(dirpath, config_file_name) if os.path.isfile(potential_config_file): config_data: Dict[str, Any] try: config_data = _get_config_data( potential_config_file, CONFIG_SECTIONS[config_file_name] ) except Exception: warn(f"Failed to pull configuration information from {potential_config_file}") config_data = {} if config_data: trie_root.insert(potential_config_file, config_data) break return trie_root @lru_cache() def _get_config_data(file_path: str, sections: Tuple[str]) -> Dict[str, Any]: settings: Dict[str, Any] = {} if file_path.endswith(".toml"): with open(file_path, "rb") as bin_config_file: config = tomli.load(bin_config_file) for section in sections: config_section = config for key in section.split("."): config_section = config_section.get(key, {}) settings.update(config_section) else: with open(file_path, encoding="utf-8") as config_file: if file_path.endswith(".editorconfig"): line = "\n" last_position = config_file.tell() while line: line = config_file.readline() if "[" in line: config_file.seek(last_position) break last_position = config_file.tell() config = configparser.ConfigParser(strict=False) config.read_file(config_file) for section in sections: if section.startswith("*.{") and section.endswith("}"): extension = section[len("*.{") : -1] for config_key in config.keys(): if ( config_key.startswith("*.{") and config_key.endswith("}") and extension in map( lambda text: text.strip(), config_key[len("*.{") : -1].split(",") # type: ignore # noqa ) ): settings.update(config.items(config_key)) elif config.has_section(section): settings.update(config.items(section)) if settings: settings["source"] = file_path if file_path.endswith(".editorconfig"): indent_style = settings.pop("indent_style", "").strip() indent_size = settings.pop("indent_size", "").strip() if indent_size == "tab": indent_size = settings.pop("tab_width", "").strip() if indent_style == "space": settings["indent"] = " " * (indent_size and int(indent_size) or 4) elif indent_style == "tab": settings["indent"] = "\t" * (indent_size and int(indent_size) or 1) max_line_length = settings.pop("max_line_length", "").strip() if max_line_length and (max_line_length == "off" or max_line_length.isdigit()): settings["line_length"] = ( float("inf") if max_line_length == "off" else int(max_line_length) ) settings = { key: value for key, value in settings.items() if key in _DEFAULT_SETTINGS.keys() or key.startswith(KNOWN_PREFIX) } for key, value in settings.items(): existing_value_type = _get_str_to_type_converter(key) if existing_value_type == tuple: settings[key] = tuple(_as_list(value)) elif existing_value_type == frozenset: settings[key] = frozenset(_as_list(settings.get(key))) # type: ignore elif existing_value_type == bool: # Only some configuration formats support native boolean values. if not isinstance(value, bool): value = _as_bool(value) settings[key] = value elif key.startswith(KNOWN_PREFIX): settings[key] = _abspaths(os.path.dirname(file_path), _as_list(value)) elif key == "force_grid_wrap": try: result = existing_value_type(value) except ValueError: # backwards compatibility for true / false force grid wrap result = 0 if value.lower().strip() == "false" else 2 settings[key] = result elif key == "comment_prefix": settings[key] = str(value).strip("'").strip('"') else: settings[key] = existing_value_type(value) return settings def _as_bool(value: str) -> bool: """Given a string value that represents True or False, returns the Boolean equivalent. Heavily inspired from distutils strtobool. """ try: return _STR_BOOLEAN_MAPPING[value.lower()] except KeyError: raise ValueError(f"invalid truth value {value}") DEFAULT_CONFIG = Config()
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