check.yml

name: "Nix flake check"
on:
  workflow_dispatch:
  pull_request:

jobs:
  check:
    runs-on: ubuntu-latest
    env:
      NIXPKGS_ALLOW_BROKEN: "1"
      NIXPKGS_ALLOW_UNFREE: "1"
      NIXPKGS_ALLOW_INSECURE: "1"
      NIX_CONFIG: |
        experimental-features = nix-command flakes
    permissions:
      contents: read
    steps:
      - uses: actions/checkout@v6
      - name: mount Nix store on larger partition
        # on the Linux runner `/` doesn't have enough space, but there's a `/mnt` which does.
        if: runner.os == 'Linux'
        run: |
          sudo mkdir /nix /mnt/nix
          sudo mount --bind /mnt/nix /nix
      - uses: cachix/install-nix-action@v31
        with:
          nix_path: nixpkgs=channel:nixos-unstable
      - name: Build default package
        run: |
          nix build --accept-flake-config .#packages.x86_64-linux.default