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Verify downloads with astral-sh/versions checksums (#1033)

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`setup-uv` currently ignores the `sha256` supplied by the default
`astral-sh/versions` manifest when a selected artifact is newer than its
bundled checksum table, allowing that download to proceed without
validation. Use the manifest checksum as a fallback after explicit and
bundled checksums, and reject manifest entries that do not provide one.
This preserves the stronger pinned hashes for known releases while
verifying newer releases without requiring an action update. Part of
#1032.

---------

Co-authored-by: Zanie Blue <contact@zanie.dev>
Co-authored-by: William Woodruff <william@yossarian.net>
Co-authored-by: Kevin Stillhammer <kevin.stillhammer@gmail.com>
This commit is contained in:
zaniebot
2026-09-01 17:07:32 +02:00
committed by GitHub
co-authored by Zanie Blue William Woodruff Kevin Stillhammer
parent 3aef7b92c5
commit cd13f92170
6 changed files with 96 additions and 14 deletions
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docs/customization.md
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@@ -4,8 +4,9 @@ This document covers advanced customization options including checksum validatio
## Validate checksum
You can specify a checksum to validate the downloaded executable. Checksums up to the default version
are automatically verified by this action. The sha256 hashes can be found on the
Downloaded executables are automatically verified using checksums bundled with this action or,
for newer, not yet bundled versions, the checksum from [`astral-sh/versions`](https://github.com/astral-sh/versions).
You can specify a checksum to override those values. The sha256 hashes can also be found on the
[releases page](https://github.com/astral-sh/uv/releases) of the uv repo.
```yaml