main.yml

name: tests

on:
  push:
    branches: [master]
  pull_request:

jobs:
  tests:
    runs-on: ubuntu-latest
    steps:
      # Setup
      - name: Check out source repository
        uses: actions/checkout@v2

      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@v4

      - name: Setup Nix cache
        uses: DeterminateSystems/magic-nix-cache-action@v2

      # Separates all the cache downloading time from the time required to actually run a step
      # of the workflow
      - name: Initialize Nix
        run: nix develop

      # Unfortunately I can't run 'spago test' in a derivation because it doesn't
      # have a mode that ignores the cache. So we run it in a script instead.
      # Once we can make this a normal derivation then we can delete this 
      # workflow file altogether.
      - name: Run Spago tests
        run: nix develop --command run-tests-script