diff options
Diffstat (limited to '.venv/lib/python3.12/site-packages/pip/_internal/utils/misc.py')
| -rw-r--r-- | .venv/lib/python3.12/site-packages/pip/_internal/utils/misc.py | 773 |
1 files changed, 773 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/pip/_internal/utils/misc.py b/.venv/lib/python3.12/site-packages/pip/_internal/utils/misc.py new file mode 100644 index 00000000..44f6a05f --- /dev/null +++ b/.venv/lib/python3.12/site-packages/pip/_internal/utils/misc.py @@ -0,0 +1,773 @@ +import errno +import getpass +import hashlib +import logging +import os +import posixpath +import shutil +import stat +import sys +import sysconfig +import urllib.parse +from dataclasses import dataclass +from functools import partial +from io import StringIO +from itertools import filterfalse, tee, zip_longest +from pathlib import Path +from types import FunctionType, TracebackType +from typing import ( + Any, + BinaryIO, + Callable, + Generator, + Iterable, + Iterator, + List, + Mapping, + Optional, + Sequence, + TextIO, + Tuple, + Type, + TypeVar, + Union, + cast, +) + +from pip._vendor.packaging.requirements import Requirement +from pip._vendor.pyproject_hooks import BuildBackendHookCaller + +from pip import __version__ +from pip._internal.exceptions import CommandError, ExternallyManagedEnvironment +from pip._internal.locations import get_major_minor_version +from pip._internal.utils.compat import WINDOWS +from pip._internal.utils.retry import retry +from pip._internal.utils.virtualenv import running_under_virtualenv + +__all__ = [ + "rmtree", + "display_path", + "backup_dir", + "ask", + "splitext", + "format_size", + "is_installable_dir", + "normalize_path", + "renames", + "get_prog", + "ensure_dir", + "remove_auth_from_url", + "check_externally_managed", + "ConfiguredBuildBackendHookCaller", +] + +logger = logging.getLogger(__name__) + +T = TypeVar("T") +ExcInfo = Tuple[Type[BaseException], BaseException, TracebackType] +VersionInfo = Tuple[int, int, int] +NetlocTuple = Tuple[str, Tuple[Optional[str], Optional[str]]] +OnExc = Callable[[FunctionType, Path, BaseException], Any] +OnErr = Callable[[FunctionType, Path, ExcInfo], Any] + +FILE_CHUNK_SIZE = 1024 * 1024 + + +def get_pip_version() -> str: + pip_pkg_dir = os.path.join(os.path.dirname(__file__), "..", "..") + pip_pkg_dir = os.path.abspath(pip_pkg_dir) + + return f"pip {__version__} from {pip_pkg_dir} (python {get_major_minor_version()})" + + +def normalize_version_info(py_version_info: Tuple[int, ...]) -> Tuple[int, int, int]: + """ + Convert a tuple of ints representing a Python version to one of length + three. + + :param py_version_info: a tuple of ints representing a Python version, + or None to specify no version. The tuple can have any length. + + :return: a tuple of length three if `py_version_info` is non-None. + Otherwise, return `py_version_info` unchanged (i.e. None). + """ + if len(py_version_info) < 3: + py_version_info += (3 - len(py_version_info)) * (0,) + elif len(py_version_info) > 3: + py_version_info = py_version_info[:3] + + return cast("VersionInfo", py_version_info) + + +def ensure_dir(path: str) -> None: + """os.path.makedirs without EEXIST.""" + try: + os.makedirs(path) + except OSError as e: + # Windows can raise spurious ENOTEMPTY errors. See #6426. + if e.errno != errno.EEXIST and e.errno != errno.ENOTEMPTY: + raise + + +def get_prog() -> str: + try: + prog = os.path.basename(sys.argv[0]) + if prog in ("__main__.py", "-c"): + return f"{sys.executable} -m pip" + else: + return prog + except (AttributeError, TypeError, IndexError): + pass + return "pip" + + +# Retry every half second for up to 3 seconds +@retry(stop_after_delay=3, wait=0.5) +def rmtree( + dir: str, ignore_errors: bool = False, onexc: Optional[OnExc] = None +) -> None: + if ignore_errors: + onexc = _onerror_ignore + if onexc is None: + onexc = _onerror_reraise + handler: OnErr = partial(rmtree_errorhandler, onexc=onexc) + if sys.version_info >= (3, 12): + # See https://docs.python.org/3.12/whatsnew/3.12.html#shutil. + shutil.rmtree(dir, onexc=handler) # type: ignore + else: + shutil.rmtree(dir, onerror=handler) # type: ignore + + +def _onerror_ignore(*_args: Any) -> None: + pass + + +def _onerror_reraise(*_args: Any) -> None: + raise # noqa: PLE0704 - Bare exception used to reraise existing exception + + +def rmtree_errorhandler( + func: FunctionType, + path: Path, + exc_info: Union[ExcInfo, BaseException], + *, + onexc: OnExc = _onerror_reraise, +) -> None: + """ + `rmtree` error handler to 'force' a file remove (i.e. like `rm -f`). + + * If a file is readonly then it's write flag is set and operation is + retried. + + * `onerror` is the original callback from `rmtree(... onerror=onerror)` + that is chained at the end if the "rm -f" still fails. + """ + try: + st_mode = os.stat(path).st_mode + except OSError: + # it's equivalent to os.path.exists + return + + if not st_mode & stat.S_IWRITE: + # convert to read/write + try: + os.chmod(path, st_mode | stat.S_IWRITE) + except OSError: + pass + else: + # use the original function to repeat the operation + try: + func(path) + return + except OSError: + pass + + if not isinstance(exc_info, BaseException): + _, exc_info, _ = exc_info + onexc(func, path, exc_info) + + +def display_path(path: str) -> str: + """Gives the display value for a given path, making it relative to cwd + if possible.""" + path = os.path.normcase(os.path.abspath(path)) + if path.startswith(os.getcwd() + os.path.sep): + path = "." + path[len(os.getcwd()) :] + return path + + +def backup_dir(dir: str, ext: str = ".bak") -> str: + """Figure out the name of a directory to back up the given dir to + (adding .bak, .bak2, etc)""" + n = 1 + extension = ext + while os.path.exists(dir + extension): + n += 1 + extension = ext + str(n) + return dir + extension + + +def ask_path_exists(message: str, options: Iterable[str]) -> str: + for action in os.environ.get("PIP_EXISTS_ACTION", "").split(): + if action in options: + return action + return ask(message, options) + + +def _check_no_input(message: str) -> None: + """Raise an error if no input is allowed.""" + if os.environ.get("PIP_NO_INPUT"): + raise Exception( + f"No input was expected ($PIP_NO_INPUT set); question: {message}" + ) + + +def ask(message: str, options: Iterable[str]) -> str: + """Ask the message interactively, with the given possible responses""" + while 1: + _check_no_input(message) + response = input(message) + response = response.strip().lower() + if response not in options: + print( + "Your response ({!r}) was not one of the expected responses: " + "{}".format(response, ", ".join(options)) + ) + else: + return response + + +def ask_input(message: str) -> str: + """Ask for input interactively.""" + _check_no_input(message) + return input(message) + + +def ask_password(message: str) -> str: + """Ask for a password interactively.""" + _check_no_input(message) + return getpass.getpass(message) + + +def strtobool(val: str) -> int: + """Convert a string representation of truth to true (1) or false (0). + + True values are 'y', 'yes', 't', 'true', 'on', and '1'; false values + are 'n', 'no', 'f', 'false', 'off', and '0'. Raises ValueError if + 'val' is anything else. + """ + val = val.lower() + if val in ("y", "yes", "t", "true", "on", "1"): + return 1 + elif val in ("n", "no", "f", "false", "off", "0"): + return 0 + else: + raise ValueError(f"invalid truth value {val!r}") + + +def format_size(bytes: float) -> str: + if bytes > 1000 * 1000: + return f"{bytes / 1000.0 / 1000:.1f} MB" + elif bytes > 10 * 1000: + return f"{int(bytes / 1000)} kB" + elif bytes > 1000: + return f"{bytes / 1000.0:.1f} kB" + else: + return f"{int(bytes)} bytes" + + +def tabulate(rows: Iterable[Iterable[Any]]) -> Tuple[List[str], List[int]]: + """Return a list of formatted rows and a list of column sizes. + + For example:: + + >>> tabulate([['foobar', 2000], [0xdeadbeef]]) + (['foobar 2000', '3735928559'], [10, 4]) + """ + rows = [tuple(map(str, row)) for row in rows] + sizes = [max(map(len, col)) for col in zip_longest(*rows, fillvalue="")] + table = [" ".join(map(str.ljust, row, sizes)).rstrip() for row in rows] + return table, sizes + + +def is_installable_dir(path: str) -> bool: + """Is path is a directory containing pyproject.toml or setup.py? + + If pyproject.toml exists, this is a PEP 517 project. Otherwise we look for + a legacy setuptools layout by identifying setup.py. We don't check for the + setup.cfg because using it without setup.py is only available for PEP 517 + projects, which are already covered by the pyproject.toml check. + """ + if not os.path.isdir(path): + return False + if os.path.isfile(os.path.join(path, "pyproject.toml")): + return True + if os.path.isfile(os.path.join(path, "setup.py")): + return True + return False + + +def read_chunks( + file: BinaryIO, size: int = FILE_CHUNK_SIZE +) -> Generator[bytes, None, None]: + """Yield pieces of data from a file-like object until EOF.""" + while True: + chunk = file.read(size) + if not chunk: + break + yield chunk + + +def normalize_path(path: str, resolve_symlinks: bool = True) -> str: + """ + Convert a path to its canonical, case-normalized, absolute version. + + """ + path = os.path.expanduser(path) + if resolve_symlinks: + path = os.path.realpath(path) + else: + path = os.path.abspath(path) + return os.path.normcase(path) + + +def splitext(path: str) -> Tuple[str, str]: + """Like os.path.splitext, but take off .tar too""" + base, ext = posixpath.splitext(path) + if base.lower().endswith(".tar"): + ext = base[-4:] + ext + base = base[:-4] + return base, ext + + +def renames(old: str, new: str) -> None: + """Like os.renames(), but handles renaming across devices.""" + # Implementation borrowed from os.renames(). + head, tail = os.path.split(new) + if head and tail and not os.path.exists(head): + os.makedirs(head) + + shutil.move(old, new) + + head, tail = os.path.split(old) + if head and tail: + try: + os.removedirs(head) + except OSError: + pass + + +def is_local(path: str) -> bool: + """ + Return True if path is within sys.prefix, if we're running in a virtualenv. + + If we're not in a virtualenv, all paths are considered "local." + + Caution: this function assumes the head of path has been normalized + with normalize_path. + """ + if not running_under_virtualenv(): + return True + return path.startswith(normalize_path(sys.prefix)) + + +def write_output(msg: Any, *args: Any) -> None: + logger.info(msg, *args) + + +class StreamWrapper(StringIO): + orig_stream: TextIO + + @classmethod + def from_stream(cls, orig_stream: TextIO) -> "StreamWrapper": + ret = cls() + ret.orig_stream = orig_stream + return ret + + # compileall.compile_dir() needs stdout.encoding to print to stdout + # type ignore is because TextIOBase.encoding is writeable + @property + def encoding(self) -> str: # type: ignore + return self.orig_stream.encoding + + +# Simulates an enum +def enum(*sequential: Any, **named: Any) -> Type[Any]: + enums = dict(zip(sequential, range(len(sequential))), **named) + reverse = {value: key for key, value in enums.items()} + enums["reverse_mapping"] = reverse + return type("Enum", (), enums) + + +def build_netloc(host: str, port: Optional[int]) -> str: + """ + Build a netloc from a host-port pair + """ + if port is None: + return host + if ":" in host: + # Only wrap host with square brackets when it is IPv6 + host = f"[{host}]" + return f"{host}:{port}" + + +def build_url_from_netloc(netloc: str, scheme: str = "https") -> str: + """ + Build a full URL from a netloc. + """ + if netloc.count(":") >= 2 and "@" not in netloc and "[" not in netloc: + # It must be a bare IPv6 address, so wrap it with brackets. + netloc = f"[{netloc}]" + return f"{scheme}://{netloc}" + + +def parse_netloc(netloc: str) -> Tuple[Optional[str], Optional[int]]: + """ + Return the host-port pair from a netloc. + """ + url = build_url_from_netloc(netloc) + parsed = urllib.parse.urlparse(url) + return parsed.hostname, parsed.port + + +def split_auth_from_netloc(netloc: str) -> NetlocTuple: + """ + Parse out and remove the auth information from a netloc. + + Returns: (netloc, (username, password)). + """ + if "@" not in netloc: + return netloc, (None, None) + + # Split from the right because that's how urllib.parse.urlsplit() + # behaves if more than one @ is present (which can be checked using + # the password attribute of urlsplit()'s return value). + auth, netloc = netloc.rsplit("@", 1) + pw: Optional[str] = None + if ":" in auth: + # Split from the left because that's how urllib.parse.urlsplit() + # behaves if more than one : is present (which again can be checked + # using the password attribute of the return value) + user, pw = auth.split(":", 1) + else: + user, pw = auth, None + + user = urllib.parse.unquote(user) + if pw is not None: + pw = urllib.parse.unquote(pw) + + return netloc, (user, pw) + + +def redact_netloc(netloc: str) -> str: + """ + Replace the sensitive data in a netloc with "****", if it exists. + + For example: + - "user:pass@example.com" returns "user:****@example.com" + - "accesstoken@example.com" returns "****@example.com" + """ + netloc, (user, password) = split_auth_from_netloc(netloc) + if user is None: + return netloc + if password is None: + user = "****" + password = "" + else: + user = urllib.parse.quote(user) + password = ":****" + return f"{user}{password}@{netloc}" + + +def _transform_url( + url: str, transform_netloc: Callable[[str], Tuple[Any, ...]] +) -> Tuple[str, NetlocTuple]: + """Transform and replace netloc in a url. + + transform_netloc is a function taking the netloc and returning a + tuple. The first element of this tuple is the new netloc. The + entire tuple is returned. + + Returns a tuple containing the transformed url as item 0 and the + original tuple returned by transform_netloc as item 1. + """ + purl = urllib.parse.urlsplit(url) + netloc_tuple = transform_netloc(purl.netloc) + # stripped url + url_pieces = (purl.scheme, netloc_tuple[0], purl.path, purl.query, purl.fragment) + surl = urllib.parse.urlunsplit(url_pieces) + return surl, cast("NetlocTuple", netloc_tuple) + + +def _get_netloc(netloc: str) -> NetlocTuple: + return split_auth_from_netloc(netloc) + + +def _redact_netloc(netloc: str) -> Tuple[str]: + return (redact_netloc(netloc),) + + +def split_auth_netloc_from_url( + url: str, +) -> Tuple[str, str, Tuple[Optional[str], Optional[str]]]: + """ + Parse a url into separate netloc, auth, and url with no auth. + + Returns: (url_without_auth, netloc, (username, password)) + """ + url_without_auth, (netloc, auth) = _transform_url(url, _get_netloc) + return url_without_auth, netloc, auth + + +def remove_auth_from_url(url: str) -> str: + """Return a copy of url with 'username:password@' removed.""" + # username/pass params are passed to subversion through flags + # and are not recognized in the url. + return _transform_url(url, _get_netloc)[0] + + +def redact_auth_from_url(url: str) -> str: + """Replace the password in a given url with ****.""" + return _transform_url(url, _redact_netloc)[0] + + +def redact_auth_from_requirement(req: Requirement) -> str: + """Replace the password in a given requirement url with ****.""" + if not req.url: + return str(req) + return str(req).replace(req.url, redact_auth_from_url(req.url)) + + +@dataclass(frozen=True) +class HiddenText: + secret: str + redacted: str + + def __repr__(self) -> str: + return f"<HiddenText {str(self)!r}>" + + def __str__(self) -> str: + return self.redacted + + # This is useful for testing. + def __eq__(self, other: Any) -> bool: + if type(self) is not type(other): + return False + + # The string being used for redaction doesn't also have to match, + # just the raw, original string. + return self.secret == other.secret + + +def hide_value(value: str) -> HiddenText: + return HiddenText(value, redacted="****") + + +def hide_url(url: str) -> HiddenText: + redacted = redact_auth_from_url(url) + return HiddenText(url, redacted=redacted) + + +def protect_pip_from_modification_on_windows(modifying_pip: bool) -> None: + """Protection of pip.exe from modification on Windows + + On Windows, any operation modifying pip should be run as: + python -m pip ... + """ + pip_names = [ + "pip", + f"pip{sys.version_info.major}", + f"pip{sys.version_info.major}.{sys.version_info.minor}", + ] + + # See https://github.com/pypa/pip/issues/1299 for more discussion + should_show_use_python_msg = ( + modifying_pip and WINDOWS and os.path.basename(sys.argv[0]) in pip_names + ) + + if should_show_use_python_msg: + new_command = [sys.executable, "-m", "pip"] + sys.argv[1:] + raise CommandError( + "To modify pip, please run the following command:\n{}".format( + " ".join(new_command) + ) + ) + + +def check_externally_managed() -> None: + """Check whether the current environment is externally managed. + + If the ``EXTERNALLY-MANAGED`` config file is found, the current environment + is considered externally managed, and an ExternallyManagedEnvironment is + raised. + """ + if running_under_virtualenv(): + return + marker = os.path.join(sysconfig.get_path("stdlib"), "EXTERNALLY-MANAGED") + if not os.path.isfile(marker): + return + raise ExternallyManagedEnvironment.from_config(marker) + + +def is_console_interactive() -> bool: + """Is this console interactive?""" + return sys.stdin is not None and sys.stdin.isatty() + + +def hash_file(path: str, blocksize: int = 1 << 20) -> Tuple[Any, int]: + """Return (hash, length) for path using hashlib.sha256()""" + + h = hashlib.sha256() + length = 0 + with open(path, "rb") as f: + for block in read_chunks(f, size=blocksize): + length += len(block) + h.update(block) + return h, length + + +def pairwise(iterable: Iterable[Any]) -> Iterator[Tuple[Any, Any]]: + """ + Return paired elements. + + For example: + s -> (s0, s1), (s2, s3), (s4, s5), ... + """ + iterable = iter(iterable) + return zip_longest(iterable, iterable) + + +def partition( + pred: Callable[[T], bool], iterable: Iterable[T] +) -> Tuple[Iterable[T], Iterable[T]]: + """ + Use a predicate to partition entries into false entries and true entries, + like + + partition(is_odd, range(10)) --> 0 2 4 6 8 and 1 3 5 7 9 + """ + t1, t2 = tee(iterable) + return filterfalse(pred, t1), filter(pred, t2) + + +class ConfiguredBuildBackendHookCaller(BuildBackendHookCaller): + def __init__( + self, + config_holder: Any, + source_dir: str, + build_backend: str, + backend_path: Optional[str] = None, + runner: Optional[Callable[..., None]] = None, + python_executable: Optional[str] = None, + ): + super().__init__( + source_dir, build_backend, backend_path, runner, python_executable + ) + self.config_holder = config_holder + + def build_wheel( + self, + wheel_directory: str, + config_settings: Optional[Mapping[str, Any]] = None, + metadata_directory: Optional[str] = None, + ) -> str: + cs = self.config_holder.config_settings + return super().build_wheel( + wheel_directory, config_settings=cs, metadata_directory=metadata_directory + ) + + def build_sdist( + self, + sdist_directory: str, + config_settings: Optional[Mapping[str, Any]] = None, + ) -> str: + cs = self.config_holder.config_settings + return super().build_sdist(sdist_directory, config_settings=cs) + + def build_editable( + self, + wheel_directory: str, + config_settings: Optional[Mapping[str, Any]] = None, + metadata_directory: Optional[str] = None, + ) -> str: + cs = self.config_holder.config_settings + return super().build_editable( + wheel_directory, config_settings=cs, metadata_directory=metadata_directory + ) + + def get_requires_for_build_wheel( + self, config_settings: Optional[Mapping[str, Any]] = None + ) -> Sequence[str]: + cs = self.config_holder.config_settings + return super().get_requires_for_build_wheel(config_settings=cs) + + def get_requires_for_build_sdist( + self, config_settings: Optional[Mapping[str, Any]] = None + ) -> Sequence[str]: + cs = self.config_holder.config_settings + return super().get_requires_for_build_sdist(config_settings=cs) + + def get_requires_for_build_editable( + self, config_settings: Optional[Mapping[str, Any]] = None + ) -> Sequence[str]: + cs = self.config_holder.config_settings + return super().get_requires_for_build_editable(config_settings=cs) + + def prepare_metadata_for_build_wheel( + self, + metadata_directory: str, + config_settings: Optional[Mapping[str, Any]] = None, + _allow_fallback: bool = True, + ) -> str: + cs = self.config_holder.config_settings + return super().prepare_metadata_for_build_wheel( + metadata_directory=metadata_directory, + config_settings=cs, + _allow_fallback=_allow_fallback, + ) + + def prepare_metadata_for_build_editable( + self, + metadata_directory: str, + config_settings: Optional[Mapping[str, Any]] = None, + _allow_fallback: bool = True, + ) -> Optional[str]: + cs = self.config_holder.config_settings + return super().prepare_metadata_for_build_editable( + metadata_directory=metadata_directory, + config_settings=cs, + _allow_fallback=_allow_fallback, + ) + + +def warn_if_run_as_root() -> None: + """Output a warning for sudo users on Unix. + + In a virtual environment, sudo pip still writes to virtualenv. + On Windows, users may run pip as Administrator without issues. + This warning only applies to Unix root users outside of virtualenv. + """ + if running_under_virtualenv(): + return + if not hasattr(os, "getuid"): + return + # On Windows, there are no "system managed" Python packages. Installing as + # Administrator via pip is the correct way of updating system environments. + # + # We choose sys.platform over utils.compat.WINDOWS here to enable Mypy platform + # checks: https://mypy.readthedocs.io/en/stable/common_issues.html + if sys.platform == "win32" or sys.platform == "cygwin": + return + + if os.getuid() != 0: + return + + logger.warning( + "Running pip as the 'root' user can result in broken permissions and " + "conflicting behaviour with the system package manager, possibly " + "rendering your system unusable. " + "It is recommended to use a virtual environment instead: " + "https://pip.pypa.io/warnings/venv. " + "Use the --root-user-action option if you know what you are doing and " + "want to suppress this warning." + ) |