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"""Generate and work with PEP 425 Compatibility Tags.
"""
import re
from typing import List, Optional, Tuple
from pip._vendor.packaging.tags import (
PythonVersion,
Tag,
compatible_tags,
cpython_tags,
generic_tags,
interpreter_name,
interpreter_version,
mac_platforms,
)
_osx_arch_pat = re.compile(r"(.+)_(\d+)_(\d+)_(.+)")
def version_info_to_nodot(version_info: Tuple[int, ...]) -> str:
# Only use up to the first two numbers.
return "".join(map(str, version_info[:2]))
def _mac_platforms(arch: str) -> List[str]:
match = _osx_arch_pat.match(arch)
if match:
name, major, minor, actual_arch = match.groups()
mac_version = (int(major), int(minor))
arches = [
# Since we have always only checked that the platform starts
# with "macosx", for backwards-compatibility we extract the
# actual prefix provided by the user in case they provided
# something like "macosxcustom_". It may be good to remove
# this as undocumented or deprecate it in the future.
"{}_{}".format(name, arch[len("macosx_") :])
for arch in mac_platforms(mac_version, actual_arch)
]
else:
# arch pattern didn't match (?!)
arches = [arch]
return arches
def _custom_manylinux_platforms(arch: str) -> List[str]:
arches = [arch]
arch_prefix, arch_sep, arch_suffix = arch.partition("_")
if arch_prefix == "manylinux2014":
# manylinux1/manylinux2010 wheels run on most manylinux2014 systems
# with the exception of wheels depending on ncurses. PEP 599 states
# manylinux1/manylinux2010 wheels should be considered
# manylinux2014 wheels:
# https://www.python.org/dev/peps/pep-0599/#backwards-compatibility-with-manylinux2010-wheels
if arch_suffix in {"i686", "x86_64"}:
arches.append("manylinux2010" + arch_sep + arch_suffix)
arches.append("manylinux1" + arch_sep + arch_suffix)
elif arch_prefix == "manylinux2010":
# manylinux1 wheels run on most manylinux2010 systems with the
# exception of wheels depending on ncurses. PEP 571 states
# manylinux1 wheels should be considered manylinux2010 wheels:
# https://www.python.org/dev/peps/pep-0571/#backwards-compatibility-with-manylinux1-wheels
arches.append("manylinux1" + arch_sep + arch_suffix)
return arches
def _get_custom_platforms(arch: str) -> List[str]:
arch_prefix, arch_sep, arch_suffix = arch.partition("_")
if arch.startswith("macosx"):
arches = _mac_platforms(arch)
elif arch_prefix in ["manylinux2014", "manylinux2010"]:
arches = _custom_manylinux_platforms(arch)
else:
arches = [arch]
return arches
def _expand_allowed_platforms(platforms: Optional[List[str]]) -> Optional[List[str]]:
if not platforms:
return None
seen = set()
result = []
for p in platforms:
if p in seen:
continue
additions = [c for c in _get_custom_platforms(p) if c not in seen]
seen.update(additions)
result.extend(additions)
return result
def _get_python_version(version: str) -> PythonVersion:
if len(version) > 1:
return int(version[0]), int(version[1:])
else:
return (int(version[0]),)
def _get_custom_interpreter(
implementation: Optional[str] = None, version: Optional[str] = None
) -> str:
if implementation is None:
implementation = interpreter_name()
if version is None:
version = interpreter_version()
return f"{implementation}{version}"
def get_supported(
version: Optional[str] = None,
platforms: Optional[List[str]] = None,
impl: Optional[str] = None,
abis: Optional[List[str]] = None,
) -> List[Tag]:
"""Return a list of supported tags for each version specified in
`versions`.
:param version: a string version, of the form "33" or "32",
or None. The version will be assumed to support our ABI.
:param platform: specify a list of platforms you want valid
tags for, or None. If None, use the local system platform.
:param impl: specify the exact implementation you want valid
tags for, or None. If None, use the local interpreter impl.
:param abis: specify a list of abis you want valid
tags for, or None. If None, use the local interpreter abi.
"""
supported: List[Tag] = []
python_version: Optional[PythonVersion] = None
if version is not None:
python_version = _get_python_version(version)
interpreter = _get_custom_interpreter(impl, version)
platforms = _expand_allowed_platforms(platforms)
is_cpython = (impl or interpreter_name()) == "cp"
if is_cpython:
supported.extend(
cpython_tags(
python_version=python_version,
abis=abis,
platforms=platforms,
)
)
else:
supported.extend(
generic_tags(
interpreter=interpreter,
abis=abis,
platforms=platforms,
)
)
supported.extend(
compatible_tags(
python_version=python_version,
interpreter=interpreter,
platforms=platforms,
)
)
return supported
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