Prefer optimized builds for freethreaded Python downloads

zanieb · zanieb · commit 1dc513f654a1 · 2024-10-14T22:44:20.000-05:00
diff --git a/crates/uv-python/download-metadata.json b/crates/uv-python/download-metadata.json
@@ -151,8 +151,8 @@
     "minor": 13,
     "patch": 0,
     "prerelease": "",
-    "url": "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-aarch64-apple-darwin-freethreaded%2Bdebug-full.tar.zst",
-    "sha256": "4ba7f477c56af4f057ca40535aa6907662b7206e3b8b39971d0a507b1c955e44",
+    "url": "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-aarch64-apple-darwin-freethreaded%2Bpgo%2Blto-full.tar.zst",
+    "sha256": "8cc1586c4ee730bb33b7e6d39f1b6388f895075fadb1771e3c27b0561abb9242",
     "variant": "freethreaded"
   },
   "cpython-3.13.0+freethreaded-darwin-x86_64-none": {
@@ -164,8 +164,8 @@
     "minor": 13,
     "patch": 0,
     "prerelease": "",
-    "url": "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-x86_64-apple-darwin-freethreaded%2Bdebug-full.tar.zst",
-    "sha256": "b72b7df7cd22a4e7462dbe95633c5ca61caab41237d68e0ff89e9774cd4985e7",
+    "url": "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-x86_64-apple-darwin-freethreaded%2Bpgo%2Blto-full.tar.zst",
+    "sha256": "117528b68096379b1303faee1f4f9e32ef3d255207ec92fb063f1bd0b942549d",
     "variant": "freethreaded"
   },
   "cpython-3.13.0+freethreaded-linux-aarch64-gnu": {
@@ -242,8 +242,8 @@
     "minor": 13,
     "patch": 0,
     "prerelease": "",
-    "url": "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-x86_64-unknown-linux-gnu-freethreaded%2Bdebug-full.tar.zst",
-    "sha256": "2b46a0f38711cfcdffab90f69ea1372288bd6dcb0f9676b765babb491d42ce06",
+    "url": "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-x86_64-unknown-linux-gnu-freethreaded%2Bpgo%2Blto-full.tar.zst",
+    "sha256": "00a159a64640ce614bdac064b270a9854d86d40d1d8387a822daf1fe0881e64b",
     "variant": "freethreaded"
   },
   "cpython-3.13.0+freethreaded-windows-i686-none": {
diff --git a/crates/uv-python/fetch-download-metadata.py b/crates/uv-python/fetch-download-metadata.py
@@ -50,7 +50,7 @@
 import logging
 import os
 import re
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from enum import StrEnum
 from pathlib import Path
 from typing import Generator, Iterable, NamedTuple, Self
@@ -120,6 +120,7 @@ class PythonDownload:
     filename: str
     url: str
     sha256: str | None = None
+    build_options: list[str] = field(default_factory=list)
     variant: Variant | None = None
 
     def key(self) -> str:
@@ -211,14 +212,14 @@ async def _fetch_downloads(self, pages: int = 100) -> list[PythonDownload]:
                         download
                     )
 
-        # Collapse CPython variants to a single URL flavor per triple and variant
+        # Collapse CPython variants to a single flavor per triple and variant
         downloads = []
         for version_downloads in downloads_by_version.values():
             selected: dict[
                 tuple[PlatformTriple, Variant | None], tuple[PythonDownload, int]
             ] = {}
             for download in version_downloads:
-                priority = self._get_flavor_priority(download.flavor)
+                priority = self._get_priority(download)
                 existing = selected.get((download.triple, download.variant))
                 if existing:
                     existing_download, existing_priority = existing
@@ -301,10 +302,10 @@ def _parse_download_url(self, url: str) -> PythonDownload | None:
 
         version, _date, triple, build_options, flavor = match.groups()
 
-        variants = build_options.split("+") if build_options else []
+        build_options = build_options.split("+") if build_options else []
         variant: Variant | None
         for variant in Variant:
-            if variant in variants:
+            if variant in build_options:
                 break
         else:
             variant = None
@@ -322,6 +323,7 @@ def _parse_download_url(self, url: str) -> PythonDownload | None:
             implementation=self.implementation,
             filename=filename,
             url=url,
+            build_options=build_options,
             variant=variant,
         )
 
@@ -355,13 +357,29 @@ def _normalize_arch(self, arch: str) -> str:
     def _normalize_os(self, os: str) -> str:
         return os
 
-    def _get_flavor_priority(self, flavor: str) -> int:
-        """Returns the priority of a flavor. Lower is better."""
+    def _get_priority(self, download: PythonDownload) -> tuple[int, int]:
+        """
+        Returns the priority of a download, a lower score is better.
+        """
+        flavor_priority = self._flavor_priority(download.flavor)
+        build_option_priority = self._build_option_priority(download.build_options)
+        return (flavor_priority, build_option_priority)
+
+    def _flavor_priority(self, flavor: str) -> int:
         try:
-            pref = self.FLAVOR_PREFERENCES.index(flavor)
+            priority = self.FLAVOR_PREFERENCES.index(flavor)
         except ValueError:
-            pref = len(self.FLAVOR_PREFERENCES) + 1
-        return pref
+            priority = len(self.FLAVOR_PREFERENCES) + 1
+        return priority
+
+    def _build_option_priority(self, build_options: list[str]) -> int:
+        # Prefer optimized builds
+        return -1 * sum(
+            (
+                "lgo" in build_options,
+                "pgo" in build_options,
+            )
+        )
 
 
 class PyPyFinder(Finder):
diff --git a/crates/uv-python/src/downloads.inc b/crates/uv-python/src/downloads.inc
@@ -196,8 +196,8 @@ pub(crate) const PYTHON_DOWNLOADS: &[ManagedPythonDownload] = &[
             variant: PythonVariant::Freethreaded
 
         },
-        url: "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-aarch64-apple-darwin-freethreaded%2Bdebug-full.tar.zst",
-        sha256: Some("4ba7f477c56af4f057ca40535aa6907662b7206e3b8b39971d0a507b1c955e44")
+        url: "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-aarch64-apple-darwin-freethreaded%2Bpgo%2Blto-full.tar.zst",
+        sha256: Some("8cc1586c4ee730bb33b7e6d39f1b6388f895075fadb1771e3c27b0561abb9242")
     },
     ManagedPythonDownload {
         key: PythonInstallationKey {
@@ -212,8 +212,8 @@ pub(crate) const PYTHON_DOWNLOADS: &[ManagedPythonDownload] = &[
             variant: PythonVariant::Freethreaded
 
         },
-        url: "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-x86_64-apple-darwin-freethreaded%2Bdebug-full.tar.zst",
-        sha256: Some("b72b7df7cd22a4e7462dbe95633c5ca61caab41237d68e0ff89e9774cd4985e7")
+        url: "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-x86_64-apple-darwin-freethreaded%2Bpgo%2Blto-full.tar.zst",
+        sha256: Some("117528b68096379b1303faee1f4f9e32ef3d255207ec92fb063f1bd0b942549d")
     },
     ManagedPythonDownload {
         key: PythonInstallationKey {
@@ -308,8 +308,8 @@ pub(crate) const PYTHON_DOWNLOADS: &[ManagedPythonDownload] = &[
             variant: PythonVariant::Freethreaded
 
         },
-        url: "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-x86_64-unknown-linux-gnu-freethreaded%2Bdebug-full.tar.zst",
-        sha256: Some("2b46a0f38711cfcdffab90f69ea1372288bd6dcb0f9676b765babb491d42ce06")
+        url: "https://github.com/indygreg/python-build-standalone/releases/download/20241008/cpython-3.13.0%2B20241008-x86_64-unknown-linux-gnu-freethreaded%2Bpgo%2Blto-full.tar.zst",
+        sha256: Some("00a159a64640ce614bdac064b270a9854d86d40d1d8387a822daf1fe0881e64b")
     },
     ManagedPythonDownload {
         key: PythonInstallationKey {
