name: Flake checks
on: [pull_request]

jobs:
  Check:
    runs-on: self-hosted
    steps:
      - name: Check out repository code
        uses: https://code.forgejo.org/actions/checkout@v4

      - name: Check formatting
        run: |
          nix --accept-flake-config --access-tokens '' develop --command treefmt --ci

      - name: Run flake checks
        run: |
          set -exuo pipefail
          # Prevent cache garbage collection by creating GC roots
          mkdir -p /var/lib/gitea-runner/tankstelle/.local/state/nix/results

          sed -i 's/virtualisation.cores .*/virtualisation.cores = 16;/' tests/keycloak.nix
          sed -i 's/virtualisation.memorySize .*/virtualisation.memorySize = 16384;/' tests/keycloak.nix
          # 1 eval-worker needs about 13GB of memory
          nix --accept-flake-config --access-tokens '' develop --command nix-fast-build --no-nom --skip-cached --systems "x86_64-linux" --max-jobs 10 --eval-workers 2 --out-link /var/lib/gitea-runner/tankstelle/.local/state/nix/results/nix-fast-build