chore: enhance nix-flake

[GTrunSec]

nix flake show output:

├───devShell
│   ├───aarch64-linux: development environment 'nix-shell'
│   ├───i686-linux: development environment 'nix-shell'
│   ├───x86_64-darwin: development environment 'nix-shell'
│   └───x86_64-linux: development environment 'nix-shell'
├───hydraJobs
│   ├───aarch64-linux
│   │   └───packages
│   ├───i686-linux
│   │   └───packages
│   ├───x86_64-darwin
│   │   └───packages
│   └───x86_64-linux
│       └───packages
├───nixosModules
│   ├───docker: NixOS module
│   ├───helm: NixOS module
│   ├───istio: NixOS module
│   ├───k8s: NixOS module
│   ├───legacy: NixOS module
│   ├───module: NixOS module
│   ├───submodule: NixOS module
│   ├───submodules: NixOS module
│   ├───test: NixOS module
│   └───testing: NixOS module
├───overlay: Nixpkgs overlay
└───packages
    ├───aarch64-linux
    ├───i686-linux
    ├───x86_64-darwin
    └───x86_64-linux

[GTrunSec]

testing error output:

• nix-build release.nix -A tests.k8s-1_11.testsByName.k8s-crd.test

  building '/nix/store/qy5qpmsn4fp64fhmy317ys6jk817dmi0-closure-info.drv'...
  building '/nix/store/ssg2rpy3n5znd0pxjyk30nj6xfxa613f-run-nixos-vm.drv'...
  building '/nix/store/vxjy3826ffsw30kajhi8lwplfslm7c23-nixos-vm.drv'...
  building '/nix/store/55lc647kbll0l3zc0ncd8bdyrzk5z3vb-nixos-test-driver-k8s-crd.drv'...
  error: cannot format /nix/store/y5gb7axmjbyajl5wc4rwmvdb96knnkjc-nixos-test-driver-k8s-crd/test-script: Cannot parse: 3:0: $kube->waitUntilSucceeds("kubectl get node kube.my.xzy | grep -w Ready");
  Oh no! 💥 💔 💥
  1 file would fail to reformat.
  error: builder for '/nix/store/55lc647kbll0l3zc0ncd8bdyrzk5z3vb-nixos-test-driver-k8s-crd.drv' failed with exit code 123;
     last 3 log lines:
     > error: cannot format /nix/store/y5gb7axmjbyajl5wc4rwmvdb96knnkjc-nixos-test-driver-k8s-crd/test-script: Cannot parse: 3:0: $kube->waitUntilSucceeds("kubectl get node kube.my.xzy | grep -w Ready");
     > Oh no! 💥 💔 💥
     > 1 file would fail to reformat.
     For full logs, run 'nix log /nix/store/55lc647kbll0l3zc0ncd8bdyrzk5z3vb-nixos-test-driver-k8s-crd.drv'.
  error: 1 dependencies of derivation '/nix/store/ns0zfxg5jw3vdshqskzxnjs1mpb9l9r2-vm-test-run-k8s-crd.drv' failed to build

• nix-build release.nix -A test-results --show-trace

nix-build release.nix -A test-results --show-trace

error: stack overflow (possible infinite recursion)

By the way, Does the test in a specific rev of nixpkgs?

[blaggacao]

Nice!

That appears to be a python black formatting error:

• https://github.com/psf/black/blob/ad1696422b7343a0cfea3c4b304e6acfa15d3cff/src/black/__init__.py#L6391
• https://github.com/psf/black/blob/ad1696422b7343a0cfea3c4b304e6acfa15d3cff/src/black/__init__.py#L653

I might be suspecting it hits this code path:

• https://github.com/NixOS/nixpkgs/blob/afd7f222bf602de2f73479a9becba8761edff4be/nixos/lib/testing-python.nix#L41

WTF?

Ok stuff like this:

        $kube->waitUntilSucceeds("kubectl get node kube.my.xzy | grep -w Ready");

Might need to become stuff like this

kube.wait_until_succeeds("kubectl get node kube.my.xzy | grep -w Ready")

After that, there seems to be an overzealous linting going on: https://github.com/NixOS/nixpkgs/issues/121066

[blaggacao]

@GTrunSec #28 has one additional commit to fix the issue.