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Krzysztof kuhy Rudnicki
08a4010a16
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toolchain:python's "latest" was platform.python_version(), so the verdict depended on the machine running the gate: setup-python "3.x" gave kuhyx/spellcode 3.15.0 on one runner and 3.14.8 on another, making its transitive:pyodide allowlist entry dead (exit 2) on one and required (exit 1) on the other. Now registries/toolchain.python_latest() reads python.org's release API (is_published, pre_release=false), keeps only exact "Python X.Y.Z" names (the feed also lists "Python install manager 26.4"), and takes the newest stable. The never_cached() carve-out is gone: it existed because a cached *interpreter* version from an older runner image (3.13.15) was served to a 3.14.7 job in screen-locker's CI. A registry answer is safe to cache, so python now goes through the normal TTL cache, prefetch, and offline fallback (expired cache -> DEGRADED; no cache -> unavailable), never the local interpreter. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01A4VrLZn9YjhPuoxTj54WKk
111 lines
3.4 KiB
Python
111 lines
3.4 KiB
Python
"""`toolchain:python` is a registry answer, never the interpreter running the gate.
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kuhyx/spellcode went red on one runner and green on another: `setup-python`
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with "3.x" handed one job 3.15.0 and the next 3.14.8, so a `transitive:`
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allowlist entry was dead (exit 2) on one machine and required (exit 1) on the
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other. The target must not depend on where the gate happens to run.
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"""
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from __future__ import annotations
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import platform
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from pathlib import Path
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import pytest
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from dep_freshness.models import Dep
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from dep_freshness.registries import http
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from dep_freshness.registries import toolchain as tc
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from dep_freshness.resolve import Resolver, _toolchain_latest
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# Shaped like python.org's /api/v2/downloads/release/ rows, trimmed.
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RELEASES = [
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{"name": "Python 2.7.18", "pre_release": False},
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{"name": "Python 3.14.8", "pre_release": False},
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{"name": "Python 3.15.0", "pre_release": False},
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# The Windows install manager is listed as a "release" with version 100;
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# read naively it is Python 26.4.
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{"name": "Python install manager 26.4", "pre_release": False},
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{"name": "Python 3.16.0a1", "pre_release": True},
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{"name": "Python 3.16.0", "pre_release": True}, # flagged, so not final
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]
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@pytest.fixture
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def feed(monkeypatch):
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def install(payload):
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monkeypatch.setattr(tc, "get_json", lambda *_a, **_k: payload)
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return install
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def python_dep() -> Dep:
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return Dep(
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ecosystem="toolchain", name="python", constraint="3.14.8",
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path=Path(".python-version"), line=1,
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)
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@pytest.fixture
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def no_interpreter(monkeypatch):
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"""Any read of the running interpreter's version is a failure."""
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monkeypatch.setattr(
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platform,
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"python_version",
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lambda: pytest.fail("the target must not come from this interpreter"),
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)
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@pytest.mark.parametrize("interpreter", ["3.14.8", "3.15.0"])
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def test_latest_is_the_same_whatever_interpreter_runs_the_gate(
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feed, monkeypatch, interpreter
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):
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feed(RELEASES)
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monkeypatch.setattr(platform, "python_version", lambda: interpreter)
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assert _toolchain_latest("python") == "3.15.0"
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def test_the_registry_answer_skips_pre_releases_and_the_install_manager(feed):
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feed(RELEASES)
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assert tc.python_latest() == "3.15.0"
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def test_a_missing_feed_is_unknown(feed):
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feed(None)
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assert tc.python_latest() is None
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def test_rows_without_a_name_are_ignored(feed):
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feed([{"pre_release": False}, {"name": "Python 3.14.8"}])
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assert tc.python_latest() == "3.14.8"
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@pytest.fixture
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def resolver(tmp_path):
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from dep_freshness.cache import Cache
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return Resolver(Cache(tmp_path / "registry.json"))
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def test_the_answer_is_cached_like_any_registry(resolver, feed, no_interpreter):
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feed(RELEASES)
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resolver.prefetch([python_dep()])
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entry = resolver.cache.get("toolchain", "python")
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assert entry is not None and entry.version == "3.15.0"
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def test_offline_serves_the_cached_answer_as_degraded(resolver, no_interpreter):
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resolver.cache.put("toolchain", "python", "3.15.0")
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resolver.cache._data["toolchain/python"]["fetched_at"] = 0.0 # long expired
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http.force_offline()
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answer = resolver.latest(python_dep())
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assert answer.version == "3.15.0"
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assert answer.stale_cache_days is not None
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def test_offline_with_no_cache_is_unavailable(resolver, no_interpreter):
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http.force_offline()
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answer = resolver.latest(python_dep())
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assert answer.version is None
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assert answer.unavailable
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