feat(wheels): add configurable build tag hook for wheel filenames#1273
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feat(wheels): add configurable build tag hook for wheel filenames#1273jlarkin09 wants to merge 1 commit into
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Actionable comments posted: 1
🧹 Nitpick comments (2)
src/fromager/packagesettings/_models.py (1)
48-58: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick winDocstring omits an important behavioral gotcha.
wheels.get_build_tag()skips the hook entirely when the package's base build tag is empty (no changelog build-tag bump for that version). Worth documenting here so hook authors don't expect it to fire unconditionally. Also worth stating the determinism requirement mentioned in the PR description (hook must not depend on wheel contents/build env/ELF info) since nothing enforces it in code.📝 Suggested docstring addition
"""Callable that returns suffix segments for the wheel build tag. The callable receives keyword-only arguments ``ctx``, ``req``, ``version``, and ``wheel_tags`` and returns ``Sequence[str]`` of suffix segments. + Only invoked when the package already has a non-empty build tag + from its changelog entry for the given version; otherwise the hook + is skipped and no build tag is added. The callable must be + deterministic and independent of wheel contents, build environment, + or ELF metadata so fresh builds and cache lookups compute the same + tag. + .. versionadded:: 0.92.0 """🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@src/fromager/packagesettings/_models.py` around lines 48 - 58, Update the build_tag_hook docstring to document that wheels.get_build_tag() does not invoke the hook when the package’s base build tag is empty, and state that hook results must be deterministic and independent of wheel contents, build environment, and ELF information.tests/test_wheels.py (1)
374-440: 🎯 Functional Correctness | 🔵 Trivial | ⚡ Quick winMissing edge-case coverage: hook skip + call-argument verification.
No test verifies (1) the hook is not invoked when the package has no base build tag, and (2) the hook receives the correct
ctx/req/version/wheel_tagsvalues — both are explicit contract points for this feature.def test_hook_not_called_without_base_tag(self, tmp_path: pathlib.Path) -> None: """Hook is skipped entirely when the package has no changelog build tag.""" from packaging.tags import Tag calls = [] def hook(**kwargs: object) -> list[str]: calls.append(kwargs) return ["el9.6"] ctx = _ctx_with_hook(tmp_path, hook=hook) req = Requirement("mypkg") # no changelog entry -> base tag is () version = Version("1.0") tags = frozenset({Tag("cp312", "cp312", "linux_x86_64")}) result = wheels.get_build_tag(ctx=ctx, req=req, version=version, wheel_tags=tags) assert result == () assert calls == []As per path instructions, "Verify test actually tests the intended behavior. Check for missing edge cases."
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@tests/test_wheels.py` around lines 374 - 440, Extend the get_build_tag tests to cover both contract edges: configure a hook through _ctx_with_hook for a package with no base build tag, assert the result is empty, and verify the hook is never called; also add call-argument assertions for a non-empty base-tag case, confirming the hook receives the exact ctx, req, version, and wheel_tags values used by get_build_tag.Source: Path instructions
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@tests/test_wheels.py`:
- Around line 342-488: Move the repeated packaging.tags.Tag and
fromager.packagesettings Settings, SettingsFile, and WheelSettings imports to
the module-level import section of tests/test_wheels.py. Remove the
corresponding local imports from _ctx_with_hook and every TestGetBuildTag
method, preserving their existing usage.
---
Nitpick comments:
In `@src/fromager/packagesettings/_models.py`:
- Around line 48-58: Update the build_tag_hook docstring to document that
wheels.get_build_tag() does not invoke the hook when the package’s base build
tag is empty, and state that hook results must be deterministic and independent
of wheel contents, build environment, and ELF information.
In `@tests/test_wheels.py`:
- Around line 374-440: Extend the get_build_tag tests to cover both contract
edges: configure a hook through _ctx_with_hook for a package with no base build
tag, assert the result is empty, and verify the hook is never called; also add
call-argument assertions for a non-empty base-tag case, confirming the hook
receives the exact ctx, req, version, and wheel_tags values used by
get_build_tag.
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📒 Files selected for processing (10)
src/fromager/bootstrapper/_cache.pysrc/fromager/commands/build.pysrc/fromager/finders.pysrc/fromager/packagesettings/__init__.pysrc/fromager/packagesettings/_models.pysrc/fromager/packagesettings/_settings.pysrc/fromager/wheels.pytests/test_finders.pytests/test_packagesettings.pytests/test_wheels.py
Implement the accepted proposal from docs/proposals/wheel-build-tag-hook.md (issue python-wheel-build#1059, tracking issue python-wheel-build#1181). Add a `wheels.build_tag_hook` option in global settings that lets downstream projects append environment-specific suffixes (OS, accelerator, torch ABI) to wheel build tags via a user-defined callable. The hook receives ctx, req, version, and wheel_tags and returns suffix segments joined with `_`. - Add `WheelSettings` model with `build_tag_hook: ImportString` to settings - Add `get_build_tag()` and `_validate_build_tag_segments()` to wheels.py - Update `add_extra_metadata_to_wheels()`, bootstrapper cache checks, and `_is_wheel_built()` to use computed build tags - Minimal finder update to match suffixed build tag filenames - Validate hook output: reject single strings, invalid chars, non-strings - No behavior change when hook is not configured Closes: python-wheel-build#1181 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> Signed-off-by: Justin Larkin <jlarkin@redhat.com> Co-authored-by: Cursor <cursoragent@cursor.com> Signed-off-by: Justin Larkin <jlarkin@redhat.com> Co-authored-by: Cursor <cursoragent@cursor.com>
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Implement the accepted proposal from docs/proposals/wheel-build-tag-hook.md (issue #1059, tracking issue #1181).
Add a
wheels.build_tag_hookoption in global settings that lets downstream projects append environment-specific suffixes (OS, accelerator, torch ABI) to wheel build tags via a user-defined callable. The hook receives ctx, req, version, and wheel_tags and returns suffix segments joined with_.WheelSettingsmodel withbuild_tag_hook: ImportStringto settingsget_build_tag()and_validate_build_tag_segments()to wheels.pyadd_extra_metadata_to_wheels(), bootstrapper cache checks, and_is_wheel_built()to use computed build tagsCloses: #1181