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generate_metadata.py

"""Metadata generation logic for source distributions.
"""

import logging
import os

from pip._internal.exceptions import InstallationError
from pip._internal.utils.misc import ensure_dir
from pip._internal.utils.setuptools_build import make_setuptools_shim_args
from pip._internal.utils.subprocess import call_subprocess
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
from pip._internal.vcs import vcs

if MYPY_CHECK_RUNNING:
    from typing import Callable, List
    from pip._internal.req.req_install import InstallRequirement

logger = logging.getLogger(__name__)

def get_metadata_generator(install_req):
    # type: (InstallRequirement) -> Callable[[InstallRequirement], str]
    """Return a callable metadata generator for this InstallRequirement.

A metadata generator takes an InstallRequirement (install_req) as an input,
    generates metadata via the appropriate process for that install_req and
    returns the generated metadata directory.
    """
    if not install_req.use_pep517:
        return _generate_metadata_legacy

return _generate_metadata

def _find_egg_info(source_directory, is_editable):
    # type: (str, bool) -> str
    """Find an .egg-info in `source_directory`, based on `is_editable`.
    """

def looks_like_virtual_env(path):
        # type: (str) -> bool
        return (
            os.path.lexists(os.path.join(path, 'bin', 'python')) or
            os.path.exists(os.path.join(path, 'Scripts', 'Python.exe'))
        )

def locate_editable_egg_info(base):
        # type: (str) -> List[str]
        candidates = []  # type: List[str]
        for root, dirs, files in os.walk(base):
            for dir_ in vcs.dirnames:
                if dir_ in dirs:
                    dirs.remove(dir_)
            # Iterate over a copy of ``dirs``, since mutating
            # a list while iterating over it can cause trouble.
            # (See https://github.com/pypa/pip/pull/462.)
            for dir_ in list(dirs):
                if looks_like_virtual_env(os.path.join(root, dir_)):
                    dirs.remove(dir_)
                # Also don't search through tests
                elif dir_ == 'test' or dir_ == 'tests':
                    dirs.remove(dir_)
            candidates.extend(os.path.join(root, dir_) for dir_ in dirs)
        return [f for f in candidates if f.endswith('.egg-info')]

def depth_of_directory(dir_):
        # type: (str) -> int
        return (
            dir_.count(os.path.sep) +
            (os.path.altsep and dir_.count(os.path.altsep) or 0)
        )

base = source_directory
    if is_editable:
        filenames = locate_editable_egg_info(base)
    else:
        base = os.path.join(base, 'pip-egg-info')
        filenames = os.listdir(base)

if not filenames:
        raise InstallationError(
            "Files/directories not found in %s" % base
        )

# If we have more than one match, we pick the toplevel one.  This
    # can easily be the case if there is a dist folder which contains
    # an extracted tarball for testing purposes.
    if len(filenames) > 1:
        filenames.sort(key=depth_of_directory)

return os.path.join(base, filenames[0])

def _generate_metadata_legacy(install_req):
    # type: (InstallRequirement) -> str
    req_details_str = install_req.name or "from {}".format(install_req.link)
    logger.debug(
        'Running setup.py (path:%s) egg_info for package %s',
        install_req.setup_py_path, req_details_str,
    )

# Compose arguments for subprocess call
    base_cmd = make_setuptools_shim_args(install_req.setup_py_path)
    if install_req.isolated:
        base_cmd += ["--no-user-cfg"]

# For non-editable installs, don't put the .egg-info files at the root,
    # to avoid confusion due to the source code being considered an installed
    # egg.
    egg_base_option = []  # type: List[str]
    if not install_req.editable:
        egg_info_dir = os.path.join(
            install_req.unpacked_source_directory, 'pip-egg-info',
        )
        egg_base_option = ['--egg-base', egg_info_dir]

# setuptools complains if the target directory does not exist.
        ensure_dir(egg_info_dir)

with install_req.build_env:
        call_subprocess(
            base_cmd + ["egg_info"] + egg_base_option,
            cwd=install_req.unpacked_source_directory,
            command_desc='python setup.py egg_info',
        )

# Return the .egg-info directory.
    return _find_egg_info(
        install_req.unpacked_source_directory,
        install_req.editable,
    )

def _generate_metadata(install_req):
    # type: (InstallRequirement) -> str
    return install_req.prepare_pep517_metadata()

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__init__.py	application/x-empty	0 B	root/root	0644	2023-10-17 06:30:24
check.py	text/plain	5.23 KB	root/root	0644	2023-10-17 06:30:24
freeze.py	text/x-python	9.6 KB	root/root	0644	2023-10-17 06:30:24
generate_metadata.py	text/plain	4.59 KB	root/root	0644	2023-10-17 06:30:24
prepare.py	text/plain	11.01 KB	root/root	0644	2023-10-17 06:30:24