haskellPackages.postgres-websockets: fix at run-time

[wolfgangwalther]

Reason for the failure is still unclear and it was not possible to reproduce upstream, yet.

diogob/postgres-websockets#101 (comment)

I will want to have that fix in 25.05 eventually, too, but I figured merging into haskell-updates and then backporting after branch-off might be better, to reduce the merge conflicts in main.yml, which was recently sorted and now added to.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested basic functionality of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

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[wolfgangwalther]

I was able to reproduce the problem by changing the NixOS test to produce a mode: r token instead of mode: rw. The test broke before and passed after this change.

The upstream issue is diogob/postgres-websockets#105 and is being worked on. So depending on when we'd like to merge haskell-updates, we can either merge this or wait for the fix.

[sternenseemann]

Since it looks like there may be a fix in the very near future, may be worth waiting on that for a bit?

[wolfgangwalther]

Fix is being worked on in diogob/postgres-websockets#106, so yes this will be available soon.

[wolfgangwalther]

Fix is available in https://github.com/diogob/postgres-websockets/releases/tag/0.11.2.4.

Shall we do another bump?

[sternenseemann]

Given that the current iteration is ready, I'd prefer manually updating it or applying it as a patch because we can merge immediately after.

[wolfgangwalther]

Will do!

[wolfgangwalther]

I went with the patch, because that will fail the build for us on update automatically. Had to apply another one to make it apply.

Also confirmed with the nixosTests that this still works and also fixes the mode: r bug. All good.

[nixpkgs-ci]

Successfully created backport PR for release-25.05:

• [Backport release-25.05] haskellPackages.postgres-websockets: fix at run-time #407709