name: Setup Nix

description: Installs nix, sets up cachix and installs a subset of tooling.

inputs:
  authToken:
    description: Token to pass to cachix
  tools:
    description: Tools to install with nix-env -iA <tools>

runs:
  using: composite
  steps:
    - uses: nixbuild/nix-quick-install-action@2c9db80fb984ceb1bcaa77cdda3fdf8cfba92035 # v34
      with:
        nix_conf: |-
          always-allow-substitutes = true
          max-jobs = auto
    - uses: cachix/cachix-action@1eb2ef646ac0255473d23a5907ad7b04ce94065c # v17
      with:
        name: postgrest
        authToken: ${{ inputs.authToken }}
        skipPush: ${{ inputs.authToken == '' }}
    - if: ${{ inputs.tools }}
      run: nix-env -f default.nix -iA ${{ inputs.tools }}
      shell: bash