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Diffstat (limited to 'docs/superpowers/specs')
| -rw-r--r-- | docs/superpowers/specs/2026-08-19-ci-build-family-filter-design.md | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/docs/superpowers/specs/2026-08-19-ci-build-family-filter-design.md b/docs/superpowers/specs/2026-08-19-ci-build-family-filter-design.md index b10f5b4ae..524568aeb 100644 --- a/docs/superpowers/specs/2026-08-19-ci-build-family-filter-design.md +++ b/docs/superpowers/specs/2026-08-19-ci-build-family-filter-design.md @@ -146,6 +146,19 @@ the existing `test_hil_util.BottomLayer` structural tests. Fail-open survives where it belongs: an *unclassified* path or any exception widens to `ALL` on every axis. +### A class no example enables selects nothing + +`src/class/bth` is the live instance: no example's `tusb_config.h` sets `CFG_TUD_BTH`, so +rules 8-10 resolve to no examples and a bth-only PR builds nothing and runs nothing. That is +the empty-means-empty ruling applied to classes, and it is deliberate — nothing compiles the +file, so nothing can validate it, and the master-push build is the net. + +Worth stating plainly because the exposure changed: GHA used to rebuild everything for such +a PR by accident, through the empty-`families` bug in `build.yml`. With that fixed, both +providers now correctly build nothing, so `tud_bt_*` can be broken by a green PR. +`TestClassesWithNoEnablingExample` pins the set to `{bth}` so a second class cannot enter +this state unnoticed. + ### Why `hw/mcu/**` is rule 7 and not "full" `hw/mcu` is overwhelmingly dependency territory — `tools/get_deps.py` has 87 entries under it, |