Two structural fixes for the cascade race conditions that bit us
five times today:
1. **PyPI propagation wait** (cascade job): poll PyPI for the
just-published version with a 60s budget BEFORE firing
repository_dispatch. PyPI accepts the upload but takes a few
seconds to make it available via the package index. Cascade was
firing too fast — downstream template builds ran `pip install`
against a stale index, resolved to the previous version, and
docker layer cache locked that in for subsequent rebuilds.
Pairs with the build-arg cache invalidation in molecule-ci PR
(separate change). Wait without invalidation = next build still
pip-resolves correctly. Invalidation without wait = first cascade
build may still race PyPI propagation. Together: no race, no
stale cache.
2. **Path filter expansion**: scripts/build_runtime_package.py is
the build script and changes to it (e.g. import-rewrite fixes,
manifest emit, lib/ subpackage move) directly affect what ships
in the wheel. Was missing from the path filter, so PRs touching
only scripts/ (like #2174's lib/ fix) didn't auto-publish — the
operator had to remember a manual dispatch. Add it to the closed
list of files that trigger auto-publish.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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