python3Packages.Nikola: disable failing test

[dotlambda]

Motivation for this change

ZHF: #122042

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Added a release notes entry if the change is major or breaking
• Fits CONTRIBUTING.md.

cc @NixOS/nixos-release-managers

@ofborg build python3.pkgs.Nikola

[dotlambda]

@ofborg build python3.pkgs.Nikola

[mweinelt]

Pywemo also has issues with the libxml2 2.9.12 upgrade. #124165

[r-rmcgibbo]

Result of nixpkgs-review pr 124320 at c57d0a5 run on x86_64-linux 1

2 packages built successfully:

• python38Packages.Nikola
• python39Packages.Nikola

---

Result of nixpkgs-review pr 124320 at c57d0a5 run on aarch64-linux 1

2 packages built successfully:

• python38Packages.Nikola
• python39Packages.Nikola

[dotlambda]

Pywemo also has issues with the libxml2 2.9.12 upgrade. #124165

That issue is what made me aware of the libxml2 bump being the culprit.

[dotlambda]

Let's try whether it actually works on Darwin (see #32087):

@ofborg build python3.pkgs.Nikola

[risicle]

Should we be running round disabling loads of tests rather than fixing the apparently buggy libxml2 2.9.12?

[risicle]

Also testing on darwin - Nikola is marked as broken on darwin but if I remove that it fails due to depending on watchdog.

[jonringer]

you'll need to remove broken = stdenv.isDarwin; from meta

[dotlambda]

you'll need to remove broken = stdenv.isDarwin; from meta

I tried that but removed the commit doing so again. As @risicle mentioned watchdog doesn't build on Darwin so there's no point in trying.

Should we be running round disabling loads of tests rather than fixing the apparently buggy libxml2 2.9.12?

Is that still an option for 21.05?

[risicle]

I don't imagine we can ship 21.05 with the glaring libxml2 bug.

[jonringer]

I don't imagine we can ship 21.05 with the glaring libxml2 bug.

The patch is in both of the staging-next channels, we can also target that base branch