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Files and Folders in: //opt/alt/python36/lib/python3.6/site-packages/pip/_internal/utils

NameTypeSizeLast ModifiedActions
__pycache__ Directory - -
__init__.py File 0 bytes November 13 2023 21:24:38.
appdirs.py File 1349 bytes November 13 2023 21:24:38.
compat.py File 9489 bytes November 13 2023 21:24:38.
compatibility_tags.py File 5439 bytes November 13 2023 21:24:38.
datetime.py File 295 bytes November 13 2023 21:24:38.
deprecation.py File 3318 bytes November 13 2023 21:24:38.
direct_url_helpers.py File 4359 bytes November 13 2023 21:24:38.
distutils_args.py File 1350 bytes November 13 2023 21:24:38.
encoding.py File 1284 bytes November 13 2023 21:24:38.
entrypoints.py File 1219 bytes November 13 2023 21:24:38.
filesystem.py File 6943 bytes November 13 2023 21:24:38.
filetypes.py File 571 bytes November 13 2023 21:24:38.
glibc.py File 3297 bytes November 13 2023 21:24:38.
hashes.py File 4678 bytes November 13 2023 21:24:38.
inject_securetransport.py File 810 bytes November 13 2023 21:24:38.
logging.py File 13093 bytes November 13 2023 21:24:38.
misc.py File 28331 bytes November 13 2023 21:24:38.
models.py File 1201 bytes November 13 2023 21:24:38.
packaging.py File 3035 bytes November 13 2023 21:24:38.
parallel.py File 3404 bytes November 13 2023 21:24:38.
pkg_resources.py File 1254 bytes November 13 2023 21:24:38.
setuptools_build.py File 5058 bytes November 13 2023 21:24:38.
subprocess.py File 9924 bytes November 13 2023 21:24:38.
temp_dir.py File 8378 bytes November 13 2023 21:24:38.
typing.py File 1401 bytes November 13 2023 21:24:38.
unpacking.py File 9488 bytes November 13 2023 21:24:38.
urls.py File 1527 bytes November 13 2023 21:24:38.
virtualenv.py File 3706 bytes November 13 2023 21:24:38.
wheel.py File 7303 bytes November 13 2023 21:24:38.

Reading File: //opt/alt/python36/lib/python3.6/site-packages/pip/_internal/utils/filesystem.py

import errno
import fnmatch
import os
import os.path
import random
import shutil
import stat
import sys
from contextlib import contextmanager
from tempfile import NamedTemporaryFile

# NOTE: retrying is not annotated in typeshed as on 2017-07-17, which is
#       why we ignore the type on this import.
from pip._vendor.retrying import retry  # type: ignore
from pip._vendor.six import PY2

from pip._internal.utils.compat import get_path_uid
from pip._internal.utils.misc import format_size
from pip._internal.utils.typing import MYPY_CHECK_RUNNING, cast

if MYPY_CHECK_RUNNING:
    from typing import Any, BinaryIO, Iterator, List, Union

    class NamedTemporaryFileResult(BinaryIO):
        @property
        def file(self):
            # type: () -> BinaryIO
            pass


def check_path_owner(path):
    # type: (str) -> bool
    # If we don't have a way to check the effective uid of this process, then
    # we'll just assume that we own the directory.
    if sys.platform == "win32" or not hasattr(os, "geteuid"):
        return True

    assert os.path.isabs(path)

    previous = None
    while path != previous:
        if os.path.lexists(path):
            # Check if path is writable by current user.
            if os.geteuid() == 0:
                # Special handling for root user in order to handle properly
                # cases where users use sudo without -H flag.
                try:
                    path_uid = get_path_uid(path)
                except OSError:
                    return False
                return path_uid == 0
            else:
                return os.access(path, os.W_OK)
        else:
            previous, path = path, os.path.dirname(path)
    return False  # assume we don't own the path


def copy2_fixed(src, dest):
    # type: (str, str) -> None
    """Wrap shutil.copy2() but map errors copying socket files to
    SpecialFileError as expected.

    See also https://bugs.python.org/issue37700.
    """
    try:
        shutil.copy2(src, dest)
    except (OSError, IOError):
        for f in [src, dest]:
            try:
                is_socket_file = is_socket(f)
            except OSError:
                # An error has already occurred. Another error here is not
                # a problem and we can ignore it.
                pass
            else:
                if is_socket_file:
                    raise shutil.SpecialFileError(
                        "`{f}` is a socket".format(**locals()))

        raise


def is_socket(path):
    # type: (str) -> bool
    return stat.S_ISSOCK(os.lstat(path).st_mode)


@contextmanager
def adjacent_tmp_file(path, **kwargs):
    # type: (str, **Any) -> Iterator[NamedTemporaryFileResult]
    """Return a file-like object pointing to a tmp file next to path.

    The file is created securely and is ensured to be written to disk
    after the context reaches its end.

    kwargs will be passed to tempfile.NamedTemporaryFile to control
    the way the temporary file will be opened.
    """
    with NamedTemporaryFile(
        delete=False,
        dir=os.path.dirname(path),
        prefix=os.path.basename(path),
        suffix='.tmp',
        **kwargs
    ) as f:
        result = cast('NamedTemporaryFileResult', f)
        try:
            yield result
        finally:
            result.file.flush()
            os.fsync(result.file.fileno())


_replace_retry = retry(stop_max_delay=1000, wait_fixed=250)

if PY2:
    @_replace_retry
    def replace(src, dest):
        # type: (str, str) -> None
        try:
            os.rename(src, dest)
        except OSError:
            os.remove(dest)
            os.rename(src, dest)

else:
    replace = _replace_retry(os.replace)


# test_writable_dir and _test_writable_dir_win are copied from Flit,
# with the author's agreement to also place them under pip's license.
def test_writable_dir(path):
    # type: (str) -> bool
    """Check if a directory is writable.

    Uses os.access() on POSIX, tries creating files on Windows.
    """
    # If the directory doesn't exist, find the closest parent that does.
    while not os.path.isdir(path):
        parent = os.path.dirname(path)
        if parent == path:
            break  # Should never get here, but infinite loops are bad
        path = parent

    if os.name == 'posix':
        return os.access(path, os.W_OK)

    return _test_writable_dir_win(path)


def _test_writable_dir_win(path):
    # type: (str) -> bool
    # os.access doesn't work on Windows: http://bugs.python.org/issue2528
    # and we can't use tempfile: http://bugs.python.org/issue22107
    basename = 'accesstest_deleteme_fishfingers_custard_'
    alphabet = 'abcdefghijklmnopqrstuvwxyz0123456789'
    for _ in range(10):
        name = basename + ''.join(random.choice(alphabet) for _ in range(6))
        file = os.path.join(path, name)
        try:
            fd = os.open(file, os.O_RDWR | os.O_CREAT | os.O_EXCL)
        # Python 2 doesn't support FileExistsError and PermissionError.
        except OSError as e:
            # exception FileExistsError
            if e.errno == errno.EEXIST:
                continue
            # exception PermissionError
            if e.errno == errno.EPERM or e.errno == errno.EACCES:
                # This could be because there's a directory with the same name.
                # But it's highly unlikely there's a directory called that,
                # so we'll assume it's because the parent dir is not writable.
                # This could as well be because the parent dir is not readable,
                # due to non-privileged user access.
                return False
            raise
        else:
            os.close(fd)
            os.unlink(file)
            return True

    # This should never be reached
    raise EnvironmentError(
        'Unexpected condition testing for writable directory'
    )


def find_files(path, pattern):
    # type: (str, str) -> List[str]
    """Returns a list of absolute paths of files beneath path, recursively,
    with filenames which match the UNIX-style shell glob pattern."""
    result = []  # type: List[str]
    for root, _, files in os.walk(path):
        matches = fnmatch.filter(files, pattern)
        result.extend(os.path.join(root, f) for f in matches)
    return result


def file_size(path):
    # type: (str) -> Union[int, float]
    # If it's a symlink, return 0.
    if os.path.islink(path):
        return 0
    return os.path.getsize(path)


def format_file_size(path):
    # type: (str) -> str
    return format_size(file_size(path))


def directory_size(path):
    # type: (str) -> Union[int, float]
    size = 0.0
    for root, _dirs, files in os.walk(path):
        for filename in files:
            file_path = os.path.join(root, filename)
            size += file_size(file_path)
    return size


def format_directory_size(path):
    # type: (str) -> str
    return format_size(directory_size(path))

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