publish: don't infer check URLs for pyx uploads #16234
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Signed-off-by: William Woodruff <william@astral.sh>
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charliermarsh
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Oct 10, 2025
FWIW another difference is that pre-check will skip the actual upload if the file already exists, i.e. a performance optimization. |
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This MR contains the following updates: | Package | Update | Change | |---|---|---| | [astral-sh/uv](https://github.com/astral-sh/uv) | patch | `0.9.1` -> `0.9.2` | MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot). **Proposed changes to behavior should be submitted there as MRs.** --- ### Release Notes <details> <summary>astral-sh/uv (astral-sh/uv)</summary> ### [`v0.9.2`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#092) [Compare Source](astral-sh/uv@0.9.1...0.9.2) Released on 2025-10-10. ##### Python - Add CPython 3.9.24. - Add CPython 3.10.19. - Add CPython 3.11.14. - Add CPython 3.12.12. ##### Enhancements - Avoid inferring check URLs for pyx in `uv publish` ([#​16234](astral-sh/uv#16234)) - Add `uv tool list --show-python` ([#​15814](astral-sh/uv#15814)) ##### Documentation - Add missing "added in" to new environment variables in reference ([#​16217](astral-sh/uv#16217)) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this MR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box --- This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0MS4xNDQuNCIsInVwZGF0ZWRJblZlciI6IjQxLjE0NC40IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJSZW5vdmF0ZSBCb3QiXX0=-->
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I think I've got this right, but could use a sanity check from @charliermarsh and @konstin 🙂
Summary
At the moment,
uv publishobtains a check URL for pyx-based registries in one of two flows:token_store.is_known_urlThe end result of either of these flows is that
uv publishdoes a pre-upload check against the simple index before attempting to upload a distribution. However, this isn't needed in pyx's case, since pyx matches PyPI's behavior of idempotency on uploads -- pyx returns a 200 if the(filename, digest)pair has already been uploaded.So, this PR just removes both of those flows. (2) is easy, (1) requires us to special-case the configuration lookup slightly to ignore the index URL if its publish URL is known as a pyx upload URL.
Notably, we do still honor a check URL for pyx if the user explicitly passes one in one the CLI. I think this is fine -- it will work in most publishing scenarios, just not ones that we're otherwise automating (i.e., Trusted Publishing).
Test Plan
I'm going to drive some e2e testing on pyx-auth-action using builds against these changes. That'll confirm that we don't secretly introduce the check URL anywhere else.