potiuk opened a new pull request, #73699:
URL: https://github.com/apache/airflow/pull/73699
## Human Summary
Handle the case of reproducibility check where flit is upgraded between
generation and veriffcation.
## AI Summary
<details><summary>Click here</summary>
Verifying the 2026-09-22 providers wave, the documented reproducibility
check produced 75 wheels
that differ from the ones in SVN — only in the `Generator:` line of their
`WHEEL` file (and its
hash in `RECORD`); every packaged file was identical. The wave was built
with flit 4.0.2, while
`dev/breeze/uv.lock` at the tag locks flit 4.1.0. `flit build` runs without
build isolation, so the
flit installed in Breeze's environment — not the `flit_core==4.0.2` pin in
the providers'
`pyproject.toml` — decides that line, and the docs gave voters no way to
reproduce the release
manager's environment.
Changes to `dev/README_RELEASE_PROVIDERS.md`:
* **Release manager build step** — build with the `breeze` shim from a plain
clone, so the tag's
`dev/breeze/uv.lock` decides the flit version, and why a separately
installed `breeze` breaks
reproducibility.
* **Reproducible package builds checks** — use a plain clone (Breeze refuses
to build sdists from a
worktree); a new step reads the `Generator:` version from the RC wheels
and compares it with the
lock; if they differ, build from a virtualenv with flit pinned to the
release manager's version
(`uv run --with flit==...` does not override the locked version).
Verified on the 2026-09-22 wave: with the pinned-flit virtualenv, the source
tarball and all 156
packages rebuild byte-identical to SVN; with the locked Breeze, 75 wheels
differ in the
`Generator:` line only. `prek` checks pass (including markdownlint and
lychee).
</details>
---
##### Was generative AI tooling used to co-author this PR?
- [X] Yes — Claude Code (Opus 5.5)
Generated-by: Claude Code (Opus 5.5) following [the
guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#gen-ai-assisted-contributions)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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