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?? ..
?? __init__.py(511 B)
?? __pycache__
?? build_env.py(13.87 KB)
?? cache.py(10.1 KB)
?? cli
?? commands
?? configuration.py(14.23 KB)
?? distributions
?? exceptions.py(28.9 KB)
?? index
?? locations
?? main.py(338 B)
?? metadata
?? models
?? network
?? operations
?? pyproject.py(4.45 KB)
?? req
?? resolution
?? self_outdated_check.py(8.27 KB)
?? utils
?? vcs
?? wheel_builder.py(8.8 KB)

Editing: wheel_builder.py

"""Orchestrator for building wheels from InstallRequirements."""

from __future__ import annotations

import logging
import os.path
import re
from collections.abc import Iterable
from tempfile import TemporaryDirectory

from pip._vendor.packaging.utils import canonicalize_name, canonicalize_version
from pip._vendor.packaging.version import InvalidVersion, Version

from pip._internal.cache import WheelCache
from pip._internal.exceptions import InvalidWheelFilename, UnsupportedWheel
from pip._internal.metadata import FilesystemWheel, get_wheel_distribution
from pip._internal.models.link import Link
from pip._internal.models.wheel import Wheel
from pip._internal.operations.build.wheel import build_wheel_pep517
from pip._internal.operations.build.wheel_editable import build_wheel_editable
from pip._internal.req.req_install import InstallRequirement
from pip._internal.utils.logging import indent_log
from pip._internal.utils.misc import ensure_dir, hash_file
from pip._internal.utils.urls import path_to_url
from pip._internal.vcs import vcs

logger = logging.getLogger(__name__)

_egg_info_re = re.compile(r"([a-z0-9_.]+)-([a-z0-9_.!+-]+)", re.IGNORECASE)

BuildResult = tuple[list[InstallRequirement], list[InstallRequirement]]

def _contains_egg_info(s: str) -> bool:
    """Determine whether the string looks like an egg_info.

:param s: The string to parse. E.g. foo-2.1
    """
    return bool(_egg_info_re.search(s))

def _should_cache(
    req: InstallRequirement,
) -> bool | None:
    """
    Return whether a built InstallRequirement can be stored in the persistent
    wheel cache, assuming the wheel cache is available.
    """
    if req.editable or not req.source_dir:
        # never cache editable requirements
        return False

if req.link and req.link.is_vcs:
        # VCS checkout. Do not cache
        # unless it points to an immutable commit hash.
        assert not req.editable
        assert req.source_dir
        vcs_backend = vcs.get_backend_for_scheme(req.link.scheme)
        assert vcs_backend
        if vcs_backend.is_immutable_rev_checkout(req.link.url, req.source_dir):
            return True
        return False

assert req.link
    base, ext = req.link.splitext()
    if _contains_egg_info(base):
        return True

# Otherwise, do not cache.
    return False

def _get_cache_dir(
    req: InstallRequirement,
    wheel_cache: WheelCache,
) -> str:
    """Return the persistent or temporary cache directory where the built
    wheel need to be stored.
    """
    cache_available = bool(wheel_cache.cache_dir)
    assert req.link
    if cache_available and _should_cache(req):
        cache_dir = wheel_cache.get_path_for_link(req.link)
    else:
        cache_dir = wheel_cache.get_ephem_path_for_link(req.link)
    return cache_dir

def _verify_one(req: InstallRequirement, wheel_path: str) -> None:
    canonical_name = canonicalize_name(req.name or "")
    w = Wheel(os.path.basename(wheel_path))
    if w.name != canonical_name:
        raise InvalidWheelFilename(
            f"Wheel has unexpected file name: expected {canonical_name!r}, "
            f"got {w.name!r}",
        )
    dist = get_wheel_distribution(FilesystemWheel(wheel_path), canonical_name)
    dist_verstr = str(dist.version)
    if canonicalize_version(dist_verstr) != canonicalize_version(w.version):
        raise InvalidWheelFilename(
            f"Wheel has unexpected file name: expected {dist_verstr!r}, "
            f"got {w.version!r}",
        )
    metadata_version_value = dist.metadata_version
    if metadata_version_value is None:
        raise UnsupportedWheel("Missing Metadata-Version")
    try:
        metadata_version = Version(metadata_version_value)
    except InvalidVersion:
        msg = f"Invalid Metadata-Version: {metadata_version_value}"
        raise UnsupportedWheel(msg)
    if metadata_version >= Version("1.2") and not isinstance(dist.version, Version):
        raise UnsupportedWheel(
            f"Metadata 1.2 mandates PEP 440 version, but {dist_verstr!r} is not"
        )

def _build_one(
    req: InstallRequirement,
    output_dir: str,
    verify: bool,
    editable: bool,
) -> str | None:
    """Build one wheel.

:return: The filename of the built wheel, or None if the build failed.
    """
    artifact = "editable" if editable else "wheel"
    try:
        ensure_dir(output_dir)
    except OSError as e:
        logger.warning(
            "Building %s for %s failed: %s",
            artifact,
            req.name,
            e,
        )
        return None

# Install build deps into temporary directory (PEP 518)
    with req.build_env:
        wheel_path = _build_one_inside_env(req, output_dir, editable)
    if wheel_path and verify:
        try:
            _verify_one(req, wheel_path)
        except (InvalidWheelFilename, UnsupportedWheel) as e:
            logger.warning("Built %s for %s is invalid: %s", artifact, req.name, e)
            return None
    return wheel_path

def _build_one_inside_env(
    req: InstallRequirement,
    output_dir: str,
    editable: bool,
) -> str | None:
    with TemporaryDirectory(dir=output_dir) as wheel_directory:
        assert req.name
        assert req.metadata_directory
        assert req.pep517_backend
        if editable:
            wheel_path = build_wheel_editable(
                name=req.name,
                backend=req.pep517_backend,
                metadata_directory=req.metadata_directory,
                wheel_directory=wheel_directory,
            )
        else:
            wheel_path = build_wheel_pep517(
                name=req.name,
                backend=req.pep517_backend,
                metadata_directory=req.metadata_directory,
                wheel_directory=wheel_directory,
            )

if wheel_path is not None:
            wheel_name = os.path.basename(wheel_path)
            dest_path = os.path.join(output_dir, wheel_name)
            try:
                wheel_hash, length = hash_file(wheel_path)
                # We can do a replace here because wheel_path is guaranteed to
                # be in the same filesystem as output_dir. This will perform an
                # atomic rename, which is necessary to avoid concurrency issues
                # when populating the cache.
                os.replace(wheel_path, dest_path)
                logger.info(
                    "Created wheel for %s: filename=%s size=%d sha256=%s",
                    req.name,
                    wheel_name,
                    length,
                    wheel_hash.hexdigest(),
                )
                logger.info("Stored in directory: %s", output_dir)
                return dest_path
            except Exception as e:
                logger.warning(
                    "Building wheel for %s failed: %s",
                    req.name,
                    e,
                )
        return None

def build(
    requirements: Iterable[InstallRequirement],
    wheel_cache: WheelCache,
    verify: bool,
) -> BuildResult:
    """Build wheels.

:return: The list of InstallRequirement that succeeded to build and
        the list of InstallRequirement that failed to build.
    """
    if not requirements:
        return [], []

# Build the wheels.
    logger.info(
        "Building wheels for collected packages: %s",
        ", ".join(req.name for req in requirements),  # type: ignore
    )

with indent_log():
        build_successes, build_failures = [], []
        for req in requirements:
            assert req.name
            cache_dir = _get_cache_dir(req, wheel_cache)
            wheel_file = _build_one(
                req,
                cache_dir,
                verify,
                req.editable and req.permit_editable_wheels,
            )
            if wheel_file:
                # Record the download origin in the cache
                if req.download_info is not None:
                    # download_info is guaranteed to be set because when we build an
                    # InstallRequirement it has been through the preparer before, but
                    # let's be cautious.
                    wheel_cache.record_download_origin(cache_dir, req.download_info)
                # Update the link for this.
                req.link = Link(path_to_url(wheel_file))
                req.local_file_path = req.link.file_path
                assert req.link.is_wheel
                build_successes.append(req)
            else:
                build_failures.append(req)

# notify success/failure
    if build_successes:
        logger.info(
            "Successfully built %s",
            " ".join([req.name for req in build_successes]),  # type: ignore
        )
    if build_failures:
        logger.info(
            "Failed to build %s",
            " ".join([req.name for req in build_failures]),  # type: ignore
        )
    # Return a list of requirements that failed to build
    return build_successes, build_failures

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