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✏️ Editing: _bdist_wheel.py

"""
Create a wheel (.whl) distribution.

A wheel is a built archive format.
"""

from __future__ import annotations

import os
import re
import shutil
import stat
import struct
import sys
import sysconfig
import warnings
from email.generator import BytesGenerator, Generator
from email.policy import EmailPolicy
from glob import iglob
from shutil import rmtree
from typing import TYPE_CHECKING, Callable, Iterable, Literal, Sequence, cast
from zipfile import ZIP_DEFLATED, ZIP_STORED

import setuptools
from setuptools import Command

from . import __version__ as wheel_version
from .metadata import pkginfo_to_metadata
from .util import log
from .vendored.packaging import tags
from .vendored.packaging import version as _packaging_version
from .wheelfile import WheelFile

if TYPE_CHECKING:
    import types

# ensure Python logging is configured
try:
    __import__("setuptools.logging")
except ImportError:
    # setuptools < ??
    from . import _setuptools_logging

_setuptools_logging.configure()

def safe_name(name: str) -> str:
    """Convert an arbitrary string to a standard distribution name
    Any runs of non-alphanumeric/. characters are replaced with a single '-'.
    """
    return re.sub("[^A-Za-z0-9.]+", "-", name)

def safe_version(version: str) -> str:
    """
    Convert an arbitrary string to a standard version string
    """
    try:
        # normalize the version
        return str(_packaging_version.Version(version))
    except _packaging_version.InvalidVersion:
        version = version.replace(" ", ".")
        return re.sub("[^A-Za-z0-9.]+", "-", version)

setuptools_major_version = int(setuptools.__version__.split(".")[0])

PY_LIMITED_API_PATTERN = r"cp3\d"

def _is_32bit_interpreter() -> bool:
    return struct.calcsize("P") == 4

def python_tag() -> str:
    return f"py{sys.version_info[0]}"

def get_platform(archive_root: str | None) -> str:
    """Return our platform name 'win32', 'linux_x86_64'"""
    result = sysconfig.get_platform()
    if result.startswith("macosx") and archive_root is not None:
        from .macosx_libfile import calculate_macosx_platform_tag

result = calculate_macosx_platform_tag(archive_root, result)
    elif _is_32bit_interpreter():
        if result == "linux-x86_64":
            # pip pull request #3497
            result = "linux-i686"
        elif result == "linux-aarch64":
            # packaging pull request #234
            # TODO armv8l, packaging pull request #690 => this did not land
            # in pip/packaging yet
            result = "linux-armv7l"

return result.replace("-", "_")

def get_flag(
    var: str, fallback: bool, expected: bool = True, warn: bool = True
) -> bool:
    """Use a fallback value for determining SOABI flags if the needed config
    var is unset or unavailable."""
    val = sysconfig.get_config_var(var)
    if val is None:
        if warn:
            warnings.warn(
                f"Config variable '{var}' is unset, Python ABI tag may be incorrect",
                RuntimeWarning,
                stacklevel=2,
            )
        return fallback
    return val == expected

def get_abi_tag() -> str | None:
    """Return the ABI tag based on SOABI (if available) or emulate SOABI (PyPy2)."""
    soabi: str = sysconfig.get_config_var("SOABI")
    impl = tags.interpreter_name()
    if not soabi and impl in ("cp", "pp") and hasattr(sys, "maxunicode"):
        d = ""
        m = ""
        u = ""
        if get_flag("Py_DEBUG", hasattr(sys, "gettotalrefcount"), warn=(impl == "cp")):
            d = "d"

if get_flag(
            "WITH_PYMALLOC",
            impl == "cp",
            warn=(impl == "cp" and sys.version_info < (3, 8)),
        ) and sys.version_info < (3, 8):
            m = "m"

abi = f"{impl}{tags.interpreter_version()}{d}{m}{u}"
    elif soabi and impl == "cp" and soabi.startswith("cpython"):
        # non-Windows
        abi = "cp" + soabi.split("-")[1]
    elif soabi and impl == "cp" and soabi.startswith("cp"):
        # Windows
        abi = soabi.split("-")[0]
    elif soabi and impl == "pp":
        # we want something like pypy36-pp73
        abi = "-".join(soabi.split("-")[:2])
        abi = abi.replace(".", "_").replace("-", "_")
    elif soabi and impl == "graalpy":
        abi = "-".join(soabi.split("-")[:3])
        abi = abi.replace(".", "_").replace("-", "_")
    elif soabi:
        abi = soabi.replace(".", "_").replace("-", "_")
    else:
        abi = None

return abi

def safer_name(name: str) -> str:
    return safe_name(name).replace("-", "_")

def safer_version(version: str) -> str:
    return safe_version(version).replace("-", "_")

def remove_readonly(
    func: Callable[..., object],
    path: str,
    excinfo: tuple[type[Exception], Exception, types.TracebackType],
) -> None:
    remove_readonly_exc(func, path, excinfo[1])

def remove_readonly_exc(func: Callable[..., object], path: str, exc: Exception) -> None:
    os.chmod(path, stat.S_IWRITE)
    func(path)

class bdist_wheel(Command):
    description = "create a wheel distribution"

supported_compressions = {
        "stored": ZIP_STORED,
        "deflated": ZIP_DEFLATED,
    }

user_options = [
        ("bdist-dir=", "b", "temporary directory for creating the distribution"),
        (
            "plat-name=",
            "p",
            "platform name to embed in generated filenames "
            f"(default: {get_platform(None)})",
        ),
        (
            "keep-temp",
            "k",
            "keep the pseudo-installation tree around after "
            "creating the distribution archive",
        ),
        ("dist-dir=", "d", "directory to put final built distributions in"),
        ("skip-build", None, "skip rebuilding everything (for testing/debugging)"),
        (
            "relative",
            None,
            "build the archive using relative paths (default: false)",
        ),
        (
            "owner=",
            "u",
            "Owner name used when creating a tar file [default: current user]",
        ),
        (
            "group=",
            "g",
            "Group name used when creating a tar file [default: current group]",
        ),
        ("universal", None, "make a universal wheel (default: false)"),
        (
            "compression=",
            None,
            "zipfile compression (one of: {}) (default: 'deflated')".format(
                ", ".join(supported_compressions)
            ),
        ),
        (
            "python-tag=",
            None,
            f"Python implementation compatibility tag (default: '{python_tag()}')",
        ),
        (
            "build-number=",
            None,
            "Build number for this particular version. "
            "As specified in PEP-0427, this must start with a digit. "
            "[default: None]",
        ),
        (
            "py-limited-api=",
            None,
            "Python tag (cp32|cp33|cpNN) for abi3 wheel tag (default: false)",
        ),
    ]

boolean_options = ["keep-temp", "skip-build", "relative", "universal"]

def initialize_options(self):
        self.bdist_dir: str = None
        self.data_dir = None
        self.plat_name: str | None = None
        self.plat_tag = None
        self.format = "zip"
        self.keep_temp = False
        self.dist_dir: str | None = None
        self.egginfo_dir = None
        self.root_is_pure: bool | None = None
        self.skip_build = None
        self.relative = False
        self.owner = None
        self.group = None
        self.universal: bool = False
        self.compression: str | int = "deflated"
        self.python_tag: str = python_tag()
        self.build_number: str | None = None
        self.py_limited_api: str | Literal[False] = False
        self.plat_name_supplied = False

def finalize_options(self):
        if self.bdist_dir is None:
            bdist_base = self.get_finalized_command("bdist").bdist_base
            self.bdist_dir = os.path.join(bdist_base, "wheel")

egg_info = self.distribution.get_command_obj("egg_info")
        egg_info.ensure_finalized()  # needed for correct `wheel_dist_name`

self.data_dir = self.wheel_dist_name + ".data"
        self.plat_name_supplied = self.plat_name is not None

try:
            self.compression = self.supported_compressions[self.compression]
        except KeyError:
            raise ValueError(f"Unsupported compression: {self.compression}") from None

need_options = ("dist_dir", "plat_name", "skip_build")

self.set_undefined_options("bdist", *zip(need_options, need_options))

self.root_is_pure = not (
            self.distribution.has_ext_modules() or self.distribution.has_c_libraries()
        )

if self.py_limited_api and not re.match(
            PY_LIMITED_API_PATTERN, self.py_limited_api
        ):
            raise ValueError(f"py-limited-api must match '{PY_LIMITED_API_PATTERN}'")

# Support legacy [wheel] section for setting universal
        wheel = self.distribution.get_option_dict("wheel")
        if "universal" in wheel:
            # please don't define this in your global configs
            log.warning(
                "The [wheel] section is deprecated. Use [bdist_wheel] instead.",
            )
            val = wheel["universal"][1].strip()
            if val.lower() in ("1", "true", "yes"):
                self.universal = True

if self.build_number is not None and not self.build_number[:1].isdigit():
            raise ValueError("Build tag (build-number) must start with a digit.")

@property
    def wheel_dist_name(self):
        """Return distribution full name with - replaced with _"""
        components = (
            safer_name(self.distribution.get_name()),
            safer_version(self.distribution.get_version()),
        )
        if self.build_number:
            components += (self.build_number,)
        return "-".join(components)

def get_tag(self) -> tuple[str, str, str]:
        # bdist sets self.plat_name if unset, we should only use it for purepy
        # wheels if the user supplied it.
        if self.plat_name_supplied:
            plat_name = cast(str, self.plat_name)
        elif self.root_is_pure:
            plat_name = "any"
        else:
            # macosx contains system version in platform name so need special handle
            if self.plat_name and not self.plat_name.startswith("macosx"):
                plat_name = self.plat_name
            else:
                # on macosx always limit the platform name to comply with any
                # c-extension modules in bdist_dir, since the user can specify
                # a higher MACOSX_DEPLOYMENT_TARGET via tools like CMake

# on other platforms, and on macosx if there are no c-extension
                # modules, use the default platform name.
                plat_name = get_platform(self.bdist_dir)

if _is_32bit_interpreter():
                if plat_name in ("linux-x86_64", "linux_x86_64"):
                    plat_name = "linux_i686"
                if plat_name in ("linux-aarch64", "linux_aarch64"):
                    # TODO armv8l, packaging pull request #690 => this did not land
                    # in pip/packaging yet
                    plat_name = "linux_armv7l"

plat_name = (
            plat_name.lower().replace("-", "_").replace(".", "_").replace(" ", "_")
        )

if self.root_is_pure:
            if self.universal:
                impl = "py2.py3"
            else:
                impl = self.python_tag
            tag = (impl, "none", plat_name)
        else:
            impl_name = tags.interpreter_name()
            impl_ver = tags.interpreter_version()
            impl = impl_name + impl_ver
            # We don't work on CPython 3.1, 3.0.
            if self.py_limited_api and (impl_name + impl_ver).startswith("cp3"):
                impl = self.py_limited_api
                abi_tag = "abi3"
            else:
                abi_tag = str(get_abi_tag()).lower()
            tag = (impl, abi_tag, plat_name)
            # issue gh-374: allow overriding plat_name
            supported_tags = [
                (t.interpreter, t.abi, plat_name) for t in tags.sys_tags()
            ]
            assert (
                tag in supported_tags
            ), f"would build wheel with unsupported tag {tag}"
        return tag

def run(self):
        build_scripts = self.reinitialize_command("build_scripts")
        build_scripts.executable = "python"
        build_scripts.force = True

build_ext = self.reinitialize_command("build_ext")
        build_ext.inplace = False

if not self.skip_build:
            self.run_command("build")

install = self.reinitialize_command("install", reinit_subcommands=True)
        install.root = self.bdist_dir
        install.compile = False
        install.skip_build = self.skip_build
        install.warn_dir = False

# A wheel without setuptools scripts is more cross-platform.
        # Use the (undocumented) `no_ep` option to setuptools'
        # install_scripts command to avoid creating entry point scripts.
        install_scripts = self.reinitialize_command("install_scripts")
        install_scripts.no_ep = True

# Use a custom scheme for the archive, because we have to decide
        # at installation time which scheme to use.
        for key in ("headers", "scripts", "data", "purelib", "platlib"):
            setattr(install, "install_" + key, os.path.join(self.data_dir, key))

basedir_observed = ""

if os.name == "nt":
            # win32 barfs if any of these are ''; could be '.'?
            # (distutils.command.install:change_roots bug)
            basedir_observed = os.path.normpath(os.path.join(self.data_dir, ".."))
            self.install_libbase = self.install_lib = basedir_observed

setattr(
            install,
            "install_purelib" if self.root_is_pure else "install_platlib",
            basedir_observed,
        )

log.info(f"installing to {self.bdist_dir}")

self.run_command("install")

impl_tag, abi_tag, plat_tag = self.get_tag()
        archive_basename = f"{self.wheel_dist_name}-{impl_tag}-{abi_tag}-{plat_tag}"
        if not self.relative:
            archive_root = self.bdist_dir
        else:
            archive_root = os.path.join(
                self.bdist_dir, self._ensure_relative(install.install_base)
            )

self.set_undefined_options("install_egg_info", ("target", "egginfo_dir"))
        distinfo_dirname = (
            f"{safer_name(self.distribution.get_name())}-"
            f"{safer_version(self.distribution.get_version())}.dist-info"
        )
        distinfo_dir = os.path.join(self.bdist_dir, distinfo_dirname)
        self.egg2dist(self.egginfo_dir, distinfo_dir)

self.write_wheelfile(distinfo_dir)

# Make the archive
        if not os.path.exists(self.dist_dir):
            os.makedirs(self.dist_dir)

wheel_path = os.path.join(self.dist_dir, archive_basename + ".whl")
        with WheelFile(wheel_path, "w", self.compression) as wf:
            wf.write_files(archive_root)

# Add to 'Distribution.dist_files' so that the "upload" command works
        getattr(self.distribution, "dist_files", []).append(
            (
                "bdist_wheel",
                "{}.{}".format(*sys.version_info[:2]),  # like 3.7
                wheel_path,
            )
        )

if not self.keep_temp:
            log.info(f"removing {self.bdist_dir}")
            if not self.dry_run:
                if sys.version_info < (3, 12):
                    rmtree(self.bdist_dir, onerror=remove_readonly)
                else:
                    rmtree(self.bdist_dir, onexc=remove_readonly_exc)

def write_wheelfile(
        self, wheelfile_base: str, generator: str = f"bdist_wheel ({wheel_version})"
    ):
        from email.message import Message

msg = Message()
        msg["Wheel-Version"] = "1.0"  # of the spec
        msg["Generator"] = generator
        msg["Root-Is-Purelib"] = str(self.root_is_pure).lower()
        if self.build_number is not None:
            msg["Build"] = self.build_number

# Doesn't work for bdist_wininst
        impl_tag, abi_tag, plat_tag = self.get_tag()
        for impl in impl_tag.split("."):
            for abi in abi_tag.split("."):
                for plat in plat_tag.split("."):
                    msg["Tag"] = "-".join((impl, abi, plat))

wheelfile_path = os.path.join(wheelfile_base, "WHEEL")
        log.info(f"creating {wheelfile_path}")
        with open(wheelfile_path, "wb") as f:
            BytesGenerator(f, maxheaderlen=0).flatten(msg)

def _ensure_relative(self, path: str) -> str:
        # copied from dir_util, deleted
        drive, path = os.path.splitdrive(path)
        if path[0:1] == os.sep:
            path = drive + path[1:]
        return path

@property
    def license_paths(self) -> Iterable[str]:
        if setuptools_major_version >= 57:
            # Setuptools has resolved any patterns to actual file names
            return self.distribution.metadata.license_files or ()

files: set[str] = set()
        metadata = self.distribution.get_option_dict("metadata")
        if setuptools_major_version >= 42:
            # Setuptools recognizes the license_files option but does not do globbing
            patterns = cast(Sequence[str], self.distribution.metadata.license_files)
        else:
            # Prior to those, wheel is entirely responsible for handling license files
            if "license_files" in metadata:
                patterns = metadata["license_files"][1].split()
            else:
                patterns = ()

if "license_file" in metadata:
            warnings.warn(
                'The "license_file" option is deprecated. Use "license_files" instead.',
                DeprecationWarning,
                stacklevel=2,
            )
            files.add(metadata["license_file"][1])

if not files and not patterns and not isinstance(patterns, list):
            patterns = ("LICEN[CS]E*", "COPYING*", "NOTICE*", "AUTHORS*")

for pattern in patterns:
            for path in iglob(pattern):
                if path.endswith("~"):
                    log.debug(
                        f'ignoring license file "{path}" as it looks like a backup'
                    )
                    continue

if path not in files and os.path.isfile(path):
                    log.info(
                        f'adding license file "{path}" (matched pattern "{pattern}")'
                    )
                    files.add(path)

return files

def egg2dist(self, egginfo_path: str, distinfo_path: str):
        """Convert an .egg-info directory into a .dist-info directory"""

def adios(p: str) -> None:
            """Appropriately delete directory, file or link."""
            if os.path.exists(p) and not os.path.islink(p) and os.path.isdir(p):
                shutil.rmtree(p)
            elif os.path.exists(p):
                os.unlink(p)

adios(distinfo_path)

if not os.path.exists(egginfo_path):
            # There is no egg-info. This is probably because the egg-info
            # file/directory is not named matching the distribution name used
            # to name the archive file. Check for this case and report
            # accordingly.
            import glob

pat = os.path.join(os.path.dirname(egginfo_path), "*.egg-info")
            possible = glob.glob(pat)
            err = f"Egg metadata expected at {egginfo_path} but not found"
            if possible:
                alt = os.path.basename(possible[0])
                err += f" ({alt} found - possible misnamed archive file?)"

raise ValueError(err)

if os.path.isfile(egginfo_path):
            # .egg-info is a single file
            pkg_info = pkginfo_to_metadata(egginfo_path, egginfo_path)
            os.mkdir(distinfo_path)
        else:
            # .egg-info is a directory
            pkginfo_path = os.path.join(egginfo_path, "PKG-INFO")
            pkg_info = pkginfo_to_metadata(egginfo_path, pkginfo_path)

# ignore common egg metadata that is useless to wheel
            shutil.copytree(
                egginfo_path,
                distinfo_path,
                ignore=lambda x, y: {
                    "PKG-INFO",
                    "requires.txt",
                    "SOURCES.txt",
                    "not-zip-safe",
                },
            )

# delete dependency_links if it is only whitespace
            dependency_links_path = os.path.join(distinfo_path, "dependency_links.txt")
            with open(dependency_links_path, encoding="utf-8") as dependency_links_file:
                dependency_links = dependency_links_file.read().strip()
            if not dependency_links:
                adios(dependency_links_path)

pkg_info_path = os.path.join(distinfo_path, "METADATA")
        serialization_policy = EmailPolicy(
            utf8=True,
            mangle_from_=False,
            max_line_length=0,
        )
        with open(pkg_info_path, "w", encoding="utf-8") as out:
            Generator(out, policy=serialization_policy).flatten(pkg_info)

for license_path in self.license_paths:
            filename = os.path.basename(license_path)
            shutil.copy(license_path, os.path.join(distinfo_path, filename))

adios(egginfo_path)

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