mirror of
https://github.com/astral-sh/uv.git
synced 2025-07-07 13:25:00 +00:00
dc4ff84443
Fix #4774. ## Summary Change the python interpreter for linux installed with `uv python` to an optimized one. ## Test Plan I ran the following command on Linux (glibc) to confirm that an optimized (not debug built) Python is installed. ```bash # install python uv python install 3.12.3 # check build type uv run python -c "import sysconfig;print(sysconfig.get_config_var('Py_DEBUG'))" 0 ```
286 lines
7.6 KiB
Python
Executable file
286 lines
7.6 KiB
Python
Executable file
#!/usr/bin/env python3.12
|
|
"""
|
|
Fetch Python version download metadata.
|
|
|
|
Generates the `download-metadata.json` file.
|
|
|
|
Usage:
|
|
|
|
python fetch-download-metadata.py
|
|
|
|
Acknowledgements:
|
|
|
|
Derived from https://github.com/mitsuhiko/rye/tree/f9822267a7f00332d15be8551f89a212e7bc9017
|
|
Originally authored by Armin Ronacher under the MIT license
|
|
"""
|
|
|
|
import argparse
|
|
import hashlib
|
|
import json
|
|
import logging
|
|
import re
|
|
import urllib.error
|
|
import urllib.request
|
|
from itertools import chain
|
|
from pathlib import Path
|
|
from urllib.parse import unquote
|
|
|
|
SELF_DIR = Path(__file__).parent
|
|
RELEASE_URL = "https://api.github.com/repos/indygreg/python-build-standalone/releases"
|
|
HEADERS = {
|
|
"X-GitHub-Api-Version": "2022-11-28",
|
|
}
|
|
VERSIONS_FILE = SELF_DIR / "download-metadata.json"
|
|
FLAVOR_PREFERENCES = [
|
|
"shared-pgo",
|
|
"shared-noopt",
|
|
"shared-noopt",
|
|
"static-noopt",
|
|
"pgo+lto",
|
|
"lto",
|
|
"pgo",
|
|
]
|
|
HIDDEN_FLAVORS = [
|
|
"debug",
|
|
"noopt",
|
|
"install_only",
|
|
]
|
|
SPECIAL_TRIPLES = {
|
|
"macos": "x86_64-apple-darwin",
|
|
"linux64": "x86_64-unknown-linux-gnu",
|
|
"windows-amd64": "x86_64-pc-windows",
|
|
"windows-x86": "i686-pc-windows",
|
|
"windows-amd64-shared": "x86_64-pc-windows",
|
|
"windows-x86-shared": "i686-pc-windows",
|
|
"linux64-musl": "x86_64-unknown-linux-musl",
|
|
}
|
|
|
|
_filename_re = re.compile(
|
|
r"""(?x)
|
|
^
|
|
cpython-(?P<ver>\d+\.\d+\.\d+?)
|
|
(?:\+\d+)?
|
|
-(?P<triple>.*?)
|
|
(?:-[\dT]+)?\.tar\.(?:gz|zst)
|
|
$
|
|
"""
|
|
)
|
|
_suffix_re = re.compile(
|
|
r"""(?x)^(.*?)-(%s)$"""
|
|
% (
|
|
"|".join(
|
|
map(
|
|
re.escape,
|
|
sorted(FLAVOR_PREFERENCES + HIDDEN_FLAVORS, key=len, reverse=True),
|
|
)
|
|
)
|
|
)
|
|
)
|
|
|
|
# Normalized mappings to match the Rust types
|
|
ARCH_MAP = {
|
|
"ppc64": "powerpc64",
|
|
"ppc64le": "powerpc64le",
|
|
}
|
|
|
|
|
|
def parse_filename(filename):
|
|
match = _filename_re.match(filename)
|
|
if match is None:
|
|
return
|
|
version, triple = match.groups()
|
|
if triple.endswith("-full"):
|
|
triple = triple[:-5]
|
|
match = _suffix_re.match(triple)
|
|
if match is not None:
|
|
triple, suffix = match.groups()
|
|
else:
|
|
suffix = None
|
|
return (version, triple, suffix)
|
|
|
|
|
|
def normalize_triple(triple):
|
|
if "-static" in triple:
|
|
logging.debug("Skipping %r: static unsupported", triple)
|
|
return
|
|
triple = SPECIAL_TRIPLES.get(triple, triple)
|
|
pieces = triple.split("-")
|
|
try:
|
|
arch = normalize_arch(pieces[0])
|
|
operating_system = normalize_os(pieces[2])
|
|
if pieces[2] == "linux":
|
|
# On linux, the triple has four segments, the last one is the libc
|
|
libc = pieces[3]
|
|
else:
|
|
libc = "none"
|
|
except IndexError:
|
|
logging.debug("Skipping %r: unknown triple", triple)
|
|
return
|
|
return "%s-%s-%s" % (arch, operating_system, libc)
|
|
|
|
|
|
def normalize_arch(arch):
|
|
arch = ARCH_MAP.get(arch, arch)
|
|
pieces = arch.split("_")
|
|
# Strip `_vN` from `x86_64`
|
|
return "_".join(pieces[:2])
|
|
|
|
|
|
def normalize_os(os):
|
|
return os
|
|
|
|
|
|
def read_sha256(url):
|
|
try:
|
|
resp = urllib.request.urlopen(url + ".sha256")
|
|
except urllib.error.HTTPError:
|
|
return None
|
|
assert resp.status == 200
|
|
return resp.read().decode().strip()
|
|
|
|
|
|
def sha256(path):
|
|
h = hashlib.sha256()
|
|
|
|
with open(path, "rb") as file:
|
|
while True:
|
|
# Reading is buffered, so we can read smaller chunks.
|
|
chunk = file.read(h.block_size)
|
|
if not chunk:
|
|
break
|
|
h.update(chunk)
|
|
|
|
return h.hexdigest()
|
|
|
|
|
|
def _sort_by_flavor_preference(info):
|
|
_triple, flavor, _url = info
|
|
try:
|
|
pref = FLAVOR_PREFERENCES.index(flavor)
|
|
except ValueError:
|
|
pref = len(FLAVOR_PREFERENCES) + 1
|
|
return pref
|
|
|
|
|
|
def _sort_by_interpreter_and_version(info):
|
|
interpreter, version_tuple, _ = info
|
|
return (interpreter, version_tuple)
|
|
|
|
|
|
def find():
|
|
"""
|
|
Find available Python versions and write metadata to a file.
|
|
"""
|
|
results = {}
|
|
|
|
# Collect all available Python downloads
|
|
for page in range(1, 100):
|
|
logging.debug("Reading release page %s...", page)
|
|
resp = urllib.request.urlopen("%s?page=%d" % (RELEASE_URL, page))
|
|
rows = json.loads(resp.read())
|
|
if not rows:
|
|
break
|
|
for row in rows:
|
|
for asset in row["assets"]:
|
|
url = asset["browser_download_url"]
|
|
base_name = unquote(url.rsplit("/")[-1])
|
|
if base_name.endswith(".sha256"):
|
|
continue
|
|
info = parse_filename(base_name)
|
|
if info is None:
|
|
continue
|
|
py_ver, triple, flavor = info
|
|
if "-static" in triple or (flavor and "noopt" in flavor):
|
|
continue
|
|
triple = normalize_triple(triple)
|
|
if triple is None:
|
|
continue
|
|
results.setdefault(py_ver, []).append((triple, flavor, url))
|
|
|
|
# Collapse CPython variants to a single URL flavor per triple
|
|
cpython_results: dict[tuple[int, int, int], dict[tuple[str, str, str], str]] = {}
|
|
for py_ver, choices in results.items():
|
|
urls = {}
|
|
for triple, flavor, url in sorted(choices, key=_sort_by_flavor_preference):
|
|
triple = tuple(triple.split("-"))
|
|
# Skip existing triples, preferring the first flavor
|
|
if triple in urls:
|
|
continue
|
|
urls[triple] = url
|
|
cpython_results[tuple(map(int, py_ver.split(".")))] = urls
|
|
|
|
# Collect variants across interpreter kinds
|
|
# TODO(zanieb): Note we only support CPython downloads at this time
|
|
# but this will include PyPy chain in the future.
|
|
final_results = {}
|
|
for interpreter, py_ver, choices in sorted(
|
|
chain(
|
|
(("cpython",) + x for x in cpython_results.items()),
|
|
),
|
|
key=_sort_by_interpreter_and_version,
|
|
# Reverse the ordering so newer versions are first
|
|
reverse=True,
|
|
):
|
|
# Sort by the remaining information for determinism
|
|
# This groups download metadata in triple component order
|
|
for (arch, operating_system, libc), url in sorted(choices.items()):
|
|
key = "%s-%s.%s.%s-%s-%s-%s" % (
|
|
interpreter,
|
|
*py_ver,
|
|
operating_system,
|
|
arch,
|
|
libc,
|
|
)
|
|
logging.info("Found %s", key)
|
|
sha256 = read_sha256(url)
|
|
|
|
final_results[key] = {
|
|
"name": interpreter,
|
|
"arch": arch,
|
|
"os": operating_system,
|
|
"libc": libc,
|
|
"major": py_ver[0],
|
|
"minor": py_ver[1],
|
|
"patch": py_ver[2],
|
|
"url": url,
|
|
"sha256": sha256,
|
|
}
|
|
|
|
VERSIONS_FILE.parent.mkdir(parents=True, exist_ok=True)
|
|
VERSIONS_FILE.write_text(json.dumps(final_results, indent=2))
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description="Fetch Python version metadata.")
|
|
parser.add_argument(
|
|
"-v",
|
|
"--verbose",
|
|
action="store_true",
|
|
help="Enable debug logging",
|
|
)
|
|
parser.add_argument(
|
|
"-q",
|
|
"--quiet",
|
|
action="store_true",
|
|
help="Disable logging",
|
|
)
|
|
args = parser.parse_args()
|
|
|
|
if args.quiet:
|
|
log_level = logging.CRITICAL
|
|
elif args.verbose:
|
|
log_level = logging.DEBUG
|
|
else:
|
|
log_level = logging.INFO
|
|
|
|
logging.basicConfig(
|
|
level=log_level,
|
|
format="%(asctime)s %(levelname)s %(message)s",
|
|
datefmt="%Y-%m-%d %H:%M:%S",
|
|
)
|
|
|
|
find()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|