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Diffstat (limited to '.venv/lib/python3.12/site-packages/setuptools/_distutils/sysconfig.py')
| -rw-r--r-- | .venv/lib/python3.12/site-packages/setuptools/_distutils/sysconfig.py | 598 |
1 files changed, 598 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/setuptools/_distutils/sysconfig.py b/.venv/lib/python3.12/site-packages/setuptools/_distutils/sysconfig.py new file mode 100644 index 00000000..7ddc869a --- /dev/null +++ b/.venv/lib/python3.12/site-packages/setuptools/_distutils/sysconfig.py @@ -0,0 +1,598 @@ +"""Provide access to Python's configuration information. The specific +configuration variables available depend heavily on the platform and +configuration. The values may be retrieved using +get_config_var(name), and the list of variables is available via +get_config_vars().keys(). Additional convenience functions are also +available. + +Written by: Fred L. Drake, Jr. +Email: <fdrake@acm.org> +""" + +from __future__ import annotations + +import functools +import os +import pathlib +import re +import sys +import sysconfig +from typing import TYPE_CHECKING, Literal, overload + +from jaraco.functools import pass_none + +from .ccompiler import CCompiler +from .compat import py39 +from .errors import DistutilsPlatformError +from .util import is_mingw + +if TYPE_CHECKING: + from typing_extensions import deprecated +else: + + def deprecated(message): + return lambda fn: fn + + +IS_PYPY = '__pypy__' in sys.builtin_module_names + +# These are needed in a couple of spots, so just compute them once. +PREFIX = os.path.normpath(sys.prefix) +EXEC_PREFIX = os.path.normpath(sys.exec_prefix) +BASE_PREFIX = os.path.normpath(sys.base_prefix) +BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix) + +# Path to the base directory of the project. On Windows the binary may +# live in project/PCbuild/win32 or project/PCbuild/amd64. +# set for cross builds +if "_PYTHON_PROJECT_BASE" in os.environ: + project_base = os.path.abspath(os.environ["_PYTHON_PROJECT_BASE"]) +else: + if sys.executable: + project_base = os.path.dirname(os.path.abspath(sys.executable)) + else: + # sys.executable can be empty if argv[0] has been changed and Python is + # unable to retrieve the real program name + project_base = os.getcwd() + + +def _is_python_source_dir(d): + """ + Return True if the target directory appears to point to an + un-installed Python. + """ + modules = pathlib.Path(d).joinpath('Modules') + return any(modules.joinpath(fn).is_file() for fn in ('Setup', 'Setup.local')) + + +_sys_home = getattr(sys, '_home', None) + + +def _is_parent(dir_a, dir_b): + """ + Return True if a is a parent of b. + """ + return os.path.normcase(dir_a).startswith(os.path.normcase(dir_b)) + + +if os.name == 'nt': + + @pass_none + def _fix_pcbuild(d): + # In a venv, sys._home will be inside BASE_PREFIX rather than PREFIX. + prefixes = PREFIX, BASE_PREFIX + matched = ( + prefix + for prefix in prefixes + if _is_parent(d, os.path.join(prefix, "PCbuild")) + ) + return next(matched, d) + + project_base = _fix_pcbuild(project_base) + _sys_home = _fix_pcbuild(_sys_home) + + +def _python_build(): + if _sys_home: + return _is_python_source_dir(_sys_home) + return _is_python_source_dir(project_base) + + +python_build = _python_build() + + +# Calculate the build qualifier flags if they are defined. Adding the flags +# to the include and lib directories only makes sense for an installation, not +# an in-source build. +build_flags = '' +try: + if not python_build: + build_flags = sys.abiflags +except AttributeError: + # It's not a configure-based build, so the sys module doesn't have + # this attribute, which is fine. + pass + + +def get_python_version(): + """Return a string containing the major and minor Python version, + leaving off the patchlevel. Sample return values could be '1.5' + or '2.2'. + """ + return f'{sys.version_info.major}.{sys.version_info.minor}' + + +def get_python_inc(plat_specific: bool = False, prefix: str | None = None) -> str: + """Return the directory containing installed Python header files. + + If 'plat_specific' is false (the default), this is the path to the + non-platform-specific header files, i.e. Python.h and so on; + otherwise, this is the path to platform-specific header files + (namely pyconfig.h). + + If 'prefix' is supplied, use it instead of sys.base_prefix or + sys.base_exec_prefix -- i.e., ignore 'plat_specific'. + """ + default_prefix = BASE_EXEC_PREFIX if plat_specific else BASE_PREFIX + resolved_prefix = prefix if prefix is not None else default_prefix + # MinGW imitates posix like layout, but os.name != posix + os_name = "posix" if is_mingw() else os.name + try: + getter = globals()[f'_get_python_inc_{os_name}'] + except KeyError: + raise DistutilsPlatformError( + "I don't know where Python installs its C header files " + f"on platform '{os.name}'" + ) + return getter(resolved_prefix, prefix, plat_specific) + + +@pass_none +def _extant(path): + """ + Replace path with None if it doesn't exist. + """ + return path if os.path.exists(path) else None + + +def _get_python_inc_posix(prefix, spec_prefix, plat_specific): + return ( + _get_python_inc_posix_python(plat_specific) + or _extant(_get_python_inc_from_config(plat_specific, spec_prefix)) + or _get_python_inc_posix_prefix(prefix) + ) + + +def _get_python_inc_posix_python(plat_specific): + """ + Assume the executable is in the build directory. The + pyconfig.h file should be in the same directory. Since + the build directory may not be the source directory, + use "srcdir" from the makefile to find the "Include" + directory. + """ + if not python_build: + return + if plat_specific: + return _sys_home or project_base + incdir = os.path.join(get_config_var('srcdir'), 'Include') + return os.path.normpath(incdir) + + +def _get_python_inc_from_config(plat_specific, spec_prefix): + """ + If no prefix was explicitly specified, provide the include + directory from the config vars. Useful when + cross-compiling, since the config vars may come from + the host + platform Python installation, while the current Python + executable is from the build platform installation. + + >>> monkeypatch = getfixture('monkeypatch') + >>> gpifc = _get_python_inc_from_config + >>> monkeypatch.setitem(gpifc.__globals__, 'get_config_var', str.lower) + >>> gpifc(False, '/usr/bin/') + >>> gpifc(False, '') + >>> gpifc(False, None) + 'includepy' + >>> gpifc(True, None) + 'confincludepy' + """ + if spec_prefix is None: + return get_config_var('CONF' * plat_specific + 'INCLUDEPY') + + +def _get_python_inc_posix_prefix(prefix): + implementation = 'pypy' if IS_PYPY else 'python' + python_dir = implementation + get_python_version() + build_flags + return os.path.join(prefix, "include", python_dir) + + +def _get_python_inc_nt(prefix, spec_prefix, plat_specific): + if python_build: + # Include both include dirs to ensure we can find pyconfig.h + return ( + os.path.join(prefix, "include") + + os.path.pathsep + + os.path.dirname(sysconfig.get_config_h_filename()) + ) + return os.path.join(prefix, "include") + + +# allow this behavior to be monkey-patched. Ref pypa/distutils#2. +def _posix_lib(standard_lib, libpython, early_prefix, prefix): + if standard_lib: + return libpython + else: + return os.path.join(libpython, "site-packages") + + +def get_python_lib( + plat_specific: bool = False, standard_lib: bool = False, prefix: str | None = None +) -> str: + """Return the directory containing the Python library (standard or + site additions). + + If 'plat_specific' is true, return the directory containing + platform-specific modules, i.e. any module from a non-pure-Python + module distribution; otherwise, return the platform-shared library + directory. If 'standard_lib' is true, return the directory + containing standard Python library modules; otherwise, return the + directory for site-specific modules. + + If 'prefix' is supplied, use it instead of sys.base_prefix or + sys.base_exec_prefix -- i.e., ignore 'plat_specific'. + """ + + early_prefix = prefix + + if prefix is None: + if standard_lib: + prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX + else: + prefix = plat_specific and EXEC_PREFIX or PREFIX + + if os.name == "posix" or is_mingw(): + if plat_specific or standard_lib: + # Platform-specific modules (any module from a non-pure-Python + # module distribution) or standard Python library modules. + libdir = getattr(sys, "platlibdir", "lib") + else: + # Pure Python + libdir = "lib" + implementation = 'pypy' if IS_PYPY else 'python' + libpython = os.path.join(prefix, libdir, implementation + get_python_version()) + return _posix_lib(standard_lib, libpython, early_prefix, prefix) + elif os.name == "nt": + if standard_lib: + return os.path.join(prefix, "Lib") + else: + return os.path.join(prefix, "Lib", "site-packages") + else: + raise DistutilsPlatformError( + f"I don't know where Python installs its library on platform '{os.name}'" + ) + + +@functools.lru_cache +def _customize_macos(): + """ + Perform first-time customization of compiler-related + config vars on macOS. Use after a compiler is known + to be needed. This customization exists primarily to support Pythons + from binary installers. The kind and paths to build tools on + the user system may vary significantly from the system + that Python itself was built on. Also the user OS + version and build tools may not support the same set + of CPU architectures for universal builds. + """ + + sys.platform == "darwin" and __import__('_osx_support').customize_compiler( + get_config_vars() + ) + + +def customize_compiler(compiler: CCompiler) -> None: + """Do any platform-specific customization of a CCompiler instance. + + Mainly needed on Unix, so we can plug in the information that + varies across Unices and is stored in Python's Makefile. + """ + if compiler.compiler_type in ["unix", "cygwin"] or ( + compiler.compiler_type == "mingw32" and is_mingw() + ): + _customize_macos() + + ( + cc, + cxx, + cflags, + ccshared, + ldshared, + ldcxxshared, + shlib_suffix, + ar, + ar_flags, + ) = get_config_vars( + 'CC', + 'CXX', + 'CFLAGS', + 'CCSHARED', + 'LDSHARED', + 'LDCXXSHARED', + 'SHLIB_SUFFIX', + 'AR', + 'ARFLAGS', + ) + + cxxflags = cflags + + if 'CC' in os.environ: + newcc = os.environ['CC'] + if 'LDSHARED' not in os.environ and ldshared.startswith(cc): + # If CC is overridden, use that as the default + # command for LDSHARED as well + ldshared = newcc + ldshared[len(cc) :] + cc = newcc + cxx = os.environ.get('CXX', cxx) + ldshared = os.environ.get('LDSHARED', ldshared) + ldcxxshared = os.environ.get('LDCXXSHARED', ldcxxshared) + cpp = os.environ.get( + 'CPP', + cc + " -E", # not always + ) + + ldshared = _add_flags(ldshared, 'LD') + ldcxxshared = _add_flags(ldcxxshared, 'LD') + cflags = os.environ.get('CFLAGS', cflags) + ldshared = _add_flags(ldshared, 'C') + cxxflags = os.environ.get('CXXFLAGS', cxxflags) + ldcxxshared = _add_flags(ldcxxshared, 'CXX') + cpp = _add_flags(cpp, 'CPP') + cflags = _add_flags(cflags, 'CPP') + cxxflags = _add_flags(cxxflags, 'CPP') + ldshared = _add_flags(ldshared, 'CPP') + ldcxxshared = _add_flags(ldcxxshared, 'CPP') + + ar = os.environ.get('AR', ar) + + archiver = ar + ' ' + os.environ.get('ARFLAGS', ar_flags) + cc_cmd = cc + ' ' + cflags + cxx_cmd = cxx + ' ' + cxxflags + + compiler.set_executables( + preprocessor=cpp, + compiler=cc_cmd, + compiler_so=cc_cmd + ' ' + ccshared, + compiler_cxx=cxx_cmd, + compiler_so_cxx=cxx_cmd + ' ' + ccshared, + linker_so=ldshared, + linker_so_cxx=ldcxxshared, + linker_exe=cc, + linker_exe_cxx=cxx, + archiver=archiver, + ) + + if 'RANLIB' in os.environ and compiler.executables.get('ranlib', None): + compiler.set_executables(ranlib=os.environ['RANLIB']) + + compiler.shared_lib_extension = shlib_suffix + + +def get_config_h_filename() -> str: + """Return full pathname of installed pyconfig.h file.""" + return sysconfig.get_config_h_filename() + + +def get_makefile_filename() -> str: + """Return full pathname of installed Makefile from the Python build.""" + return sysconfig.get_makefile_filename() + + +def parse_config_h(fp, g=None): + """Parse a config.h-style file. + + A dictionary containing name/value pairs is returned. If an + optional dictionary is passed in as the second argument, it is + used instead of a new dictionary. + """ + return sysconfig.parse_config_h(fp, vars=g) + + +# Regexes needed for parsing Makefile (and similar syntaxes, +# like old-style Setup files). +_variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)") +_findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)") +_findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}") + + +def parse_makefile(fn, g=None): # noqa: C901 + """Parse a Makefile-style file. + + A dictionary containing name/value pairs is returned. If an + optional dictionary is passed in as the second argument, it is + used instead of a new dictionary. + """ + from distutils.text_file import TextFile + + fp = TextFile( + fn, + strip_comments=True, + skip_blanks=True, + join_lines=True, + errors="surrogateescape", + ) + + if g is None: + g = {} + done = {} + notdone = {} + + while True: + line = fp.readline() + if line is None: # eof + break + m = _variable_rx.match(line) + if m: + n, v = m.group(1, 2) + v = v.strip() + # `$$' is a literal `$' in make + tmpv = v.replace('$$', '') + + if "$" in tmpv: + notdone[n] = v + else: + try: + v = int(v) + except ValueError: + # insert literal `$' + done[n] = v.replace('$$', '$') + else: + done[n] = v + + # Variables with a 'PY_' prefix in the makefile. These need to + # be made available without that prefix through sysconfig. + # Special care is needed to ensure that variable expansion works, even + # if the expansion uses the name without a prefix. + renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS') + + # do variable interpolation here + while notdone: + for name in list(notdone): + value = notdone[name] + m = _findvar1_rx.search(value) or _findvar2_rx.search(value) + if m: + n = m.group(1) + found = True + if n in done: + item = str(done[n]) + elif n in notdone: + # get it on a subsequent round + found = False + elif n in os.environ: + # do it like make: fall back to environment + item = os.environ[n] + + elif n in renamed_variables: + if name.startswith('PY_') and name[3:] in renamed_variables: + item = "" + + elif 'PY_' + n in notdone: + found = False + + else: + item = str(done['PY_' + n]) + else: + done[n] = item = "" + if found: + after = value[m.end() :] + value = value[: m.start()] + item + after + if "$" in after: + notdone[name] = value + else: + try: + value = int(value) + except ValueError: + done[name] = value.strip() + else: + done[name] = value + del notdone[name] + + if name.startswith('PY_') and name[3:] in renamed_variables: + name = name[3:] + if name not in done: + done[name] = value + else: + # bogus variable reference; just drop it since we can't deal + del notdone[name] + + fp.close() + + # strip spurious spaces + for k, v in done.items(): + if isinstance(v, str): + done[k] = v.strip() + + # save the results in the global dictionary + g.update(done) + return g + + +def expand_makefile_vars(s, vars): + """Expand Makefile-style variables -- "${foo}" or "$(foo)" -- in + 'string' according to 'vars' (a dictionary mapping variable names to + values). Variables not present in 'vars' are silently expanded to the + empty string. The variable values in 'vars' should not contain further + variable expansions; if 'vars' is the output of 'parse_makefile()', + you're fine. Returns a variable-expanded version of 's'. + """ + + # This algorithm does multiple expansion, so if vars['foo'] contains + # "${bar}", it will expand ${foo} to ${bar}, and then expand + # ${bar}... and so forth. This is fine as long as 'vars' comes from + # 'parse_makefile()', which takes care of such expansions eagerly, + # according to make's variable expansion semantics. + + while True: + m = _findvar1_rx.search(s) or _findvar2_rx.search(s) + if m: + (beg, end) = m.span() + s = s[0:beg] + vars.get(m.group(1)) + s[end:] + else: + break + return s + + +_config_vars = None + + +@overload +def get_config_vars() -> dict[str, str | int]: ... +@overload +def get_config_vars(arg: str, /, *args: str) -> list[str | int]: ... +def get_config_vars(*args: str) -> list[str | int] | dict[str, str | int]: + """With no arguments, return a dictionary of all configuration + variables relevant for the current platform. Generally this includes + everything needed to build extensions and install both pure modules and + extensions. On Unix, this means every variable defined in Python's + installed Makefile; on Windows it's a much smaller set. + + With arguments, return a list of values that result from looking up + each argument in the configuration variable dictionary. + """ + global _config_vars + if _config_vars is None: + _config_vars = sysconfig.get_config_vars().copy() + py39.add_ext_suffix(_config_vars) + + return [_config_vars.get(name) for name in args] if args else _config_vars + + +@overload +@deprecated( + "SO is deprecated, use EXT_SUFFIX. Support will be removed when this module is synchronized with stdlib Python 3.11" +) +def get_config_var(name: Literal["SO"]) -> int | str | None: ... +@overload +def get_config_var(name: str) -> int | str | None: ... +def get_config_var(name: str) -> int | str | None: + """Return the value of a single variable using the dictionary + returned by 'get_config_vars()'. Equivalent to + get_config_vars().get(name) + """ + if name == 'SO': + import warnings + + warnings.warn('SO is deprecated, use EXT_SUFFIX', DeprecationWarning, 2) + return get_config_vars().get(name) + + +@pass_none +def _add_flags(value: str, type: str) -> str: + """ + Add any flags from the environment for the given type. + + type is the prefix to FLAGS in the environment key (e.g. "C" for "CFLAGS"). + """ + flags = os.environ.get(f'{type}FLAGS') + return f'{value} {flags}' if flags else value |