ci_nix.yml

on: 
    pull_request:
    workflow_dispatch:

# this cancels workflows currently in progress if you start a new one
concurrency:
    group: ${{ github.workflow }}-${{ github.ref }}
    cancel-in-progress: true

jobs:
    build-and-test:
        runs-on: [ubuntu-22.04]
        steps:
            - uses: actions/checkout@v3

            # install nix
            - uses: cachix/install-nix-action@v23
              with:
                nix_path: nixpkgs=channel:nixos-unstable

            - uses: cachix/cachix-action@v12
              with:
                  name: enigmaticsunrise
                  authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'

            - name: Build roc with nix
              run: nix build github:roc-lang/roc
            
            #  the result folder is produced by the previous step
            - name: Run all tests 
              run: nix develop -c sh -c 'export ROC=./result/bin/roc && export EXAMPLES_DIR=./examples/ && ./ci/all_tests.sh'