on:
  pull_request:
  
name: CI manager

concurrency:
    group: ${{ github.workflow }}-${{ github.ref }}
    cancel-in-progress: true

jobs:
    check-changes:
        runs-on: ubuntu-22.04
        outputs:
            full_tests: ${{ steps.filter.outputs.full_tests }}
        steps:
            - name: Checkout
              uses: actions/checkout@v3

            - name: Check for only .md changes
              id: filter
              run: |
                if git diff --name-only ${{ github.event.before }} ${{ github.event.after }} | grep -qvE '(\.md$)'; then
                    echo "::set-output name=full_tests::true"
                else
                    echo "::set-output name=full_tests::false"
                fi

    start-nix-linux-x86-64-tests:
        needs: check-changes
        if: needs.check-changes.full_tests == 'true'
        uses: ./.github/workflows/nix_linux_x86_64.yml

    start-nix-macos-apple-silicon-tests:
        needs: check-changes
        if: needs.check-changes.full_tests == 'true'
        uses: ./.github/workflows/nix_macos_apple_silicon.yml

    finish-full:
        runs-on: ubuntu-22.04
        needs: [start-nix-linux-x86-64-tests, start-nix-macos-apple-silicon-tests]
        steps:
            - run: echo "all jobs succeeded!"

    finish-basic:
        runs-on: ubuntu-22.04
        needs: [check-changes]
        if: needs.check-changes.full_tests == 'false'
        steps:
            - run: echo "all jobs succeeded!"