Christoph Brandau
53ebc5d055
The changes align the project with the 2025.0.0 lsprotocol release, removing the old backport and updating type hints in the protocol hooks to use Sequence where appropriate. The dist-info and packaging metadata for older lsprotocol versions are replaced with the new 2025.0.0 artifacts. - Remove exceptiongroup backport used on Python <3.11 - Use Sequence instead of List in LS protocol hooks - Replace old dist-info with 2025.0.0 metadata
89 lines
2.7 KiB
Python
89 lines
2.7 KiB
Python
"""PEP 656 support.
|
|
|
|
This module implements logic to detect if the currently running Python is
|
|
linked against musl, and what musl version is used.
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import functools
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
from typing import TYPE_CHECKING, NamedTuple
|
|
|
|
from ._elffile import ELFFile
|
|
|
|
if TYPE_CHECKING:
|
|
from collections.abc import Iterator, Sequence
|
|
|
|
|
|
class _MuslVersion(NamedTuple):
|
|
major: int
|
|
minor: int
|
|
|
|
|
|
def _parse_musl_version(output: str) -> _MuslVersion | None:
|
|
lines = [n for n in (n.strip() for n in output.splitlines()) if n]
|
|
if len(lines) < 2 or lines[0][:4] != "musl":
|
|
return None
|
|
m = re.match(r"Version (\d+)\.(\d+)", lines[1])
|
|
if not m:
|
|
return None
|
|
return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2)))
|
|
|
|
|
|
@functools.lru_cache
|
|
def _get_musl_version(executable: str) -> _MuslVersion | None:
|
|
"""Detect currently-running musl runtime version.
|
|
|
|
This is done by checking the specified executable's dynamic linking
|
|
information, and invoking the loader to parse its output for a version
|
|
string. If the loader is musl, the output would be something like::
|
|
|
|
musl libc (x86_64)
|
|
Version 1.2.2
|
|
Dynamic Program Loader
|
|
"""
|
|
try:
|
|
with open(executable, "rb") as f:
|
|
ld = ELFFile(f).interpreter
|
|
except (OSError, TypeError, ValueError):
|
|
return None
|
|
if ld is None or "musl" not in ld:
|
|
return None
|
|
proc = subprocess.run([ld], check=False, stderr=subprocess.PIPE, text=True)
|
|
return _parse_musl_version(proc.stderr)
|
|
|
|
|
|
def platform_tags(archs: Sequence[str]) -> Iterator[str]:
|
|
"""Generate musllinux tags compatible to the current platform.
|
|
|
|
:param archs: Sequence of compatible architectures.
|
|
The first one shall be the closest to the actual architecture and be the part of
|
|
platform tag after the ``linux_`` prefix, e.g. ``x86_64``.
|
|
The ``linux_`` prefix is assumed as a prerequisite for the current platform to
|
|
be musllinux-compatible.
|
|
|
|
:returns: An iterator of compatible musllinux tags.
|
|
"""
|
|
sys_musl = _get_musl_version(sys.executable)
|
|
if sys_musl is None: # Python not dynamically linked against musl.
|
|
return
|
|
for arch in archs:
|
|
for minor in range(sys_musl.minor, -1, -1):
|
|
yield f"musllinux_{sys_musl.major}_{minor}_{arch}"
|
|
|
|
|
|
if __name__ == "__main__": # pragma: no cover
|
|
import sysconfig
|
|
|
|
plat = sysconfig.get_platform()
|
|
assert plat.startswith("linux-"), "not linux"
|
|
|
|
print("plat:", plat)
|
|
print("musl:", _get_musl_version(sys.executable))
|
|
print("tags:", end=" ")
|
|
for t in platform_tags([re.sub(r"[.-]", "_", plat.split("-", 1)[-1])]):
|
|
print(t, end="\n ")
|