nix/.github/workflows/ci.yml

name: "CI"

on:
  pull_request:
  push:

permissions: read-all

jobs:
  eval:
    runs-on: ubuntu-24.04
    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 0
    - uses: ./.github/actions/install-nix-action
      with:
        dogfood: false
        extra_nix_config:
          experimental-features = nix-command flakes
        github_token: ${{ secrets.GITHUB_TOKEN }}
        use_cache: false
    - run: nix flake show --all-systems --json

  tests:
    strategy:
      fail-fast: false
      matrix:
        include:
          - scenario: on ubuntu
            runs-on: ubuntu-24.04
            os: linux
          - scenario: on macos
            runs-on: macos-14
            os: darwin
    name: tests ${{ matrix.scenario }}
    runs-on: ${{ matrix.runs-on }}
    timeout-minutes: 60
    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 0
    - uses: ./.github/actions/install-nix-action
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        dogfood: false
        # The sandbox would otherwise be disabled by default on Darwin
        extra_nix_config: |
          sandbox = true
          max-jobs = 1
    # Since ubuntu 22.30, unprivileged usernamespaces are no longer allowed to map to the root user:
    # https://ubuntu.com/blog/ubuntu-23-10-restricted-unprivileged-user-namespaces
    - run: sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
      if: matrix.os == 'linux'
    - run: scripts/build-checks
    - run: scripts/prepare-installer-for-github-actions
    - name: Upload installer tarball
      uses: actions/upload-artifact@v4
      with:
        name: installer-${{matrix.os}}
        path: out/*

  installer_test:
    needs: [tests]
    strategy:
      fail-fast: false
      matrix:
        include:
          - scenario: on ubuntu
            runs-on: ubuntu-24.04
            os: linux
          - scenario: on macos
            runs-on: macos-14
            os: darwin
    name: installer test ${{ matrix.scenario }}
    runs-on: ${{ matrix.runs-on }}
    steps:
    - uses: actions/checkout@v4
    - name: Download installer tarball
      uses: actions/download-artifact@v4
      with:
        name: installer-${{matrix.os}}
        path: out
    - name: Serving installer
      id: serving_installer
      run: ./scripts/serve-installer-for-github-actions
    - uses: cachix/install-nix-action@v31
      with:
        install_url: 'http://localhost:8126/install'
        install_options: "--tarball-url-prefix http://localhost:8126/"
    - run: sudo apt install fish zsh
      if: matrix.os == 'linux'
    - run: brew install fish
      if: matrix.os == 'darwin'
    - run: exec bash -c "nix-instantiate -E 'builtins.currentTime' --eval"
    - run: exec sh -c "nix-instantiate -E 'builtins.currentTime' --eval"
    - run: exec zsh -c "nix-instantiate -E 'builtins.currentTime' --eval"
    - run: exec fish -c "nix-instantiate -E 'builtins.currentTime' --eval"
    - run: exec bash -c "nix-channel --add https://releases.nixos.org/nixos/unstable/nixos-23.05pre466020.60c1d71f2ba nixpkgs"
    - run: exec bash -c "nix-channel --update && nix-env -iA nixpkgs.hello && hello"

  docker_push_image:
    name: Push docker image to DockerHub and GHCR
    needs: [tests, vm_tests]
    if: github.event_name == 'push' && github.ref_name == 'master'
    uses: ./.github/workflows/docker-push.yml
    with:
      ref: ${{ github.sha }}
      is_master: true
    permissions:
      contents: read
      packages: write
    secrets:
      DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
      DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}

  vm_tests:
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v4
      - uses: ./.github/actions/install-nix-action
        with:
          dogfood: false
          extra_nix_config:
            experimental-features = nix-command flakes
          github_token: ${{ secrets.GITHUB_TOKEN }}
      - uses: DeterminateSystems/magic-nix-cache-action@main
      - run: |
          nix build -L \
            .#hydraJobs.tests.functional_user \
            .#hydraJobs.tests.githubFlakes \
            .#hydraJobs.tests.nix-docker \
            .#hydraJobs.tests.tarballFlakes \
            ;

  flake_regressions:
    needs: vm_tests
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout nix
        uses: actions/checkout@v4
      - name: Checkout flake-regressions
        uses: actions/checkout@v4
        with:
          repository: NixOS/flake-regressions
          path: flake-regressions
      - name: Checkout flake-regressions-data
        uses: actions/checkout@v4
        with:
          repository: NixOS/flake-regressions-data
          path: flake-regressions/tests
      - uses: ./.github/actions/install-nix-action
        with:
          dogfood: false
          extra_nix_config:
            experimental-features = nix-command flakes
          github_token: ${{ secrets.GITHUB_TOKEN }}
      - run: nix build -L --out-link ./new-nix && PATH=$(pwd)/new-nix/bin:$PATH MAX_FLAKES=25 flake-regressions/eval-all.sh