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pythonGH-121970: Modernise the patchlevel extension (python#121995)
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Original file line number | Diff line number | Diff line change |
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@@ -1,68 +1,77 @@ | ||
# -*- coding: utf-8 -*- | ||
""" | ||
patchlevel.py | ||
~~~~~~~~~~~~~ | ||
"""Extract version information from Include/patchlevel.h.""" | ||
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Extract version info from Include/patchlevel.h. | ||
Adapted from Doc/tools/getversioninfo. | ||
import re | ||
import sys | ||
from pathlib import Path | ||
from typing import Literal, NamedTuple | ||
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:copyright: 2007-2008 by Georg Brandl. | ||
:license: Python license. | ||
""" | ||
CPYTHON_ROOT = Path( | ||
__file__, # cpython/Doc/tools/extensions/patchlevel.py | ||
"..", # cpython/Doc/tools/extensions | ||
"..", # cpython/Doc/tools | ||
"..", # cpython/Doc | ||
"..", # cpython | ||
).resolve() | ||
PATCHLEVEL_H = CPYTHON_ROOT / "Include" / "patchlevel.h" | ||
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from __future__ import print_function | ||
RELEASE_LEVELS = { | ||
"PY_RELEASE_LEVEL_ALPHA": "alpha", | ||
"PY_RELEASE_LEVEL_BETA": "beta", | ||
"PY_RELEASE_LEVEL_GAMMA": "candidate", | ||
"PY_RELEASE_LEVEL_FINAL": "final", | ||
} | ||
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import os | ||
import re | ||
import sys | ||
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def get_header_version_info(srcdir): | ||
patchlevel_h = os.path.join(srcdir, '..', 'Include', 'patchlevel.h') | ||
class version_info(NamedTuple): # noqa: N801 | ||
major: int #: Major release number | ||
minor: int #: Minor release number | ||
micro: int #: Patch release number | ||
releaselevel: Literal["alpha", "beta", "candidate", "final"] | ||
serial: int #: Serial release number | ||
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# This won't pick out all #defines, but it will pick up the ones we | ||
# care about. | ||
rx = re.compile(r'\s*#define\s+([a-zA-Z][a-zA-Z_0-9]*)\s+([a-zA-Z_0-9]+)') | ||
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d = {} | ||
with open(patchlevel_h) as f: | ||
for line in f: | ||
m = rx.match(line) | ||
if m is not None: | ||
name, value = m.group(1, 2) | ||
d[name] = value | ||
def get_header_version_info() -> version_info: | ||
# Capture PY_ prefixed #defines. | ||
pat = re.compile(r"\s*#define\s+(PY_\w*)\s+(\w+)", re.ASCII) | ||
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release = version = '%s.%s' % (d['PY_MAJOR_VERSION'], d['PY_MINOR_VERSION']) | ||
micro = int(d['PY_MICRO_VERSION']) | ||
release += '.' + str(micro) | ||
defines = {} | ||
patchlevel_h = PATCHLEVEL_H.read_text(encoding="utf-8") | ||
for line in patchlevel_h.splitlines(): | ||
if (m := pat.match(line)) is not None: | ||
name, value = m.groups() | ||
defines[name] = value | ||
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level = d['PY_RELEASE_LEVEL'] | ||
suffixes = { | ||
'PY_RELEASE_LEVEL_ALPHA': 'a', | ||
'PY_RELEASE_LEVEL_BETA': 'b', | ||
'PY_RELEASE_LEVEL_GAMMA': 'rc', | ||
} | ||
if level != 'PY_RELEASE_LEVEL_FINAL': | ||
release += suffixes[level] + str(int(d['PY_RELEASE_SERIAL'])) | ||
return version, release | ||
return version_info( | ||
major=int(defines["PY_MAJOR_VERSION"]), | ||
minor=int(defines["PY_MINOR_VERSION"]), | ||
micro=int(defines["PY_MICRO_VERSION"]), | ||
releaselevel=RELEASE_LEVELS[defines["PY_RELEASE_LEVEL"]], | ||
serial=int(defines["PY_RELEASE_SERIAL"]), | ||
) | ||
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def get_sys_version_info(): | ||
major, minor, micro, level, serial = sys.version_info | ||
release = version = '%s.%s' % (major, minor) | ||
release += '.%s' % micro | ||
if level != 'final': | ||
release += '%s%s' % (level[0], serial) | ||
def format_version_info(info: version_info) -> tuple[str, str]: | ||
version = f"{info.major}.{info.minor}" | ||
release = f"{info.major}.{info.minor}.{info.micro}" | ||
if info.releaselevel != "final": | ||
suffix = {"alpha": "a", "beta": "b", "candidate": "rc"} | ||
release += f"{suffix[info.releaselevel]}{info.serial}" | ||
return version, release | ||
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def get_version_info(): | ||
try: | ||
return get_header_version_info('.') | ||
except (IOError, OSError): | ||
version, release = get_sys_version_info() | ||
print('Can\'t get version info from Include/patchlevel.h, ' \ | ||
'using version of this interpreter (%s).' % release, file=sys.stderr) | ||
info = get_header_version_info() | ||
return format_version_info(info) | ||
except OSError: | ||
version, release = format_version_info(sys.version_info) | ||
print( | ||
f"Failed to get version info from Include/patchlevel.h, " | ||
f"using version of this interpreter ({release}).", | ||
file=sys.stderr, | ||
) | ||
return version, release | ||
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if __name__ == '__main__': | ||
print(get_header_version_info('.')[1]) | ||
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if __name__ == "__main__": | ||
print(format_version_info(get_header_version_info())[1]) |