name: "Test"
on:
  pull_request:
  push:

env:
  CURRENT_STABLE_CHANNEL: nixpkgs-23.05-darwin

jobs:
  test-stable:
    runs-on: macos-12
    timeout-minutes: 30
    steps:
    - uses: actions/checkout@v3
    - name: Install nix corresponding to latest stable channel
      uses: cachix/install-nix-action@v23
      with:
        install_url: https://releases.nixos.org/nix/nix-2.13.6/install
    - run: nix-build ./release.nix -I nixpkgs=channel:${{ env.CURRENT_STABLE_CHANNEL }} -I darwin=. -A tests
    - run: nix-build ./release.nix -I nixpkgs=channel:${{ env.CURRENT_STABLE_CHANNEL }} -I darwin=. -A manpages
    - run: nix-build ./release.nix -I nixpkgs=channel:${{ env.CURRENT_STABLE_CHANNEL }} -I darwin=. -A examples.simple

  test-unstable:
    runs-on: macos-12
    timeout-minutes: 30
    steps:
    - uses: actions/checkout@v3
    - name: Install nix from current unstable channel
      uses: cachix/install-nix-action@v23
    - run: nix-build ./release.nix -I nixpkgs=channel:nixpkgs-unstable -I darwin=. -A tests
    - run: nix-build ./release.nix -I nixpkgs=channel:nixpkgs-unstable -I darwin=. -A manpages
    - run: nix-build ./release.nix -I nixpkgs=channel:nixpkgs-unstable -I darwin=. -A examples.simple

  install-against-stable:
    runs-on: macos-12
    timeout-minutes: 30
    steps:
    - uses: actions/checkout@v3
    - name: Install nix corresponding to latest stable channel
      uses: cachix/install-nix-action@v23
      with:
        install_url: https://releases.nixos.org/nix/nix-2.13.6/install
        nix_path: nixpkgs=channel:${{ env.CURRENT_STABLE_CHANNEL }}
    - name: Install ${{ env.CURRENT_STABLE_CHANNEL }} channel
      run: |
        nix-channel --add https://nixos.org/channels/${{ env.CURRENT_STABLE_CHANNEL }} nixpkgs
        nix-channel --update
    - name: Install nix-darwin and test
      run: |
        export NIX_PATH=$HOME/.nix-defexpr/channels

        # We run nix-darwin twice to test that it can create darwin-configuration correctly for us
        # but we expect it to fail setting up /etc/nix/nix.conf
        nix-shell -A installer || true

        nixConfHash=$(shasum -a 256 /etc/nix/nix.conf | cut -d ' ' -f 1)
        /usr/bin/sed -i.bak \
          "s/# nix.package = pkgs.nix;/nix.settings.access-tokens = [ \"github.com=\${{ secrets.GITHUB_TOKEN }}\" ]; environment.etc.\"nix\/nix.conf\".knownSha256Hashes = [ \"$nixConfHash\" ];/" \
          ~/.nixpkgs/darwin-configuration.nix

        nix-shell -A installer
        nix-shell -A installer.check
    - name: Build and activate default derivation
      run: |
        . /etc/static/bashrc
        darwin-rebuild switch -I darwin=.
    - name: Test uninstallation of nix-darwin
      run: |
        export NIX_PATH=$HOME/.nix-defexpr/channels
        nix-shell -A uninstaller
        nix-shell -A uninstaller.check
    - name: Debugging tmate session
      if: ${{ failure() }}
      uses: mxschmitt/action-tmate@v3
      timeout-minutes: 15
      with:
        limit-access-to-actor: true

  install-against-unstable:
    runs-on: macos-12
    timeout-minutes: 30
    steps:
    - uses: actions/checkout@v3
    - name: Install nix from current unstable channel
      uses: cachix/install-nix-action@v23
      with:
        nix_path: nixpkgs=channel:nixpkgs-unstable
    - name: Install nixpkgs-unstable channel
      run: |
        nix-channel --add https://nixos.org/channels/nixpkgs-unstable nixpkgs
        nix-channel --update
    - name: Install nix-darwin and test
      run: |
        export NIX_PATH=$HOME/.nix-defexpr/channels

        # We run nix-darwin twice to test that it can create darwin-configuration correctly for us
        # but we expect it to fail setting up /etc/nix/nix.conf
        nix-shell -A installer || true

        nixConfHash=$(shasum -a 256 /etc/nix/nix.conf | cut -d ' ' -f 1)
        /usr/bin/sed -i.bak \
          "s/# nix.package = pkgs.nix;/nix.settings.access-tokens = [ \"github.com=\${{ secrets.GITHUB_TOKEN }}\" ]; environment.etc.\"nix\/nix.conf\".knownSha256Hashes = [ \"$nixConfHash\" ];/" \
          ~/.nixpkgs/darwin-configuration.nix

        nix-shell -A installer
        nix-shell -A installer.check
    - name: Build and activate default derivation
      run: |
        . /etc/static/bashrc
        darwin-rebuild switch -I darwin=.
    - name: Test uninstallation of nix-darwin
      run: |
        export NIX_PATH=$HOME/.nix-defexpr/channels
        nix-shell -A uninstaller
        nix-shell -A uninstaller.check
    - name: Debugging tmate session
      if: ${{ failure() }}
      uses: mxschmitt/action-tmate@v3
      timeout-minutes: 15
      with:
        limit-access-to-actor: true

  install-flake-against-stable:
    runs-on: macos-12
    timeout-minutes: 30
    steps:
    - uses: actions/checkout@v3
    - name: Install nix version corresponding to latest stable channel
      uses: cachix/install-nix-action@v23
      with:
        install_url: https://releases.nixos.org/nix/nix-2.13.6/install
    - name: Install nix-darwin
      run: |
        mkdir -p ~/.config/nix-darwin
        darwin=$(pwd)
        pushd ~/.config/nix-darwin
          nix flake init -t $darwin
          nixConfHash=$(shasum -a 256 /etc/nix/nix.conf | cut -d ' ' -f 1)
          /usr/bin/sed -i.bak \
            "s/# nix.package = pkgs.nix;/nix.settings.access-tokens = [ \"github.com=\${{ secrets.GITHUB_TOKEN }}\" ]; environment.etc.\"nix\/nix.conf\".knownSha256Hashes = [ \"$nixConfHash\" ];/" \
            flake.nix
        popd
        nix run .#darwin-rebuild -- \
          switch --flake ~/.config/nix-darwin#simple \
          --override-input nix-darwin . \
          --override-input nixpkgs nixpkgs/${{ env.CURRENT_STABLE_CHANNEL }}
    - name: Rebuild and activate simple flake, but this time using nix-darwin's flake interface
      run: |
        . /etc/static/bashrc
        darwin-rebuild build --flake ./modules/examples/flake#simple --override-input nix-darwin . --override-input nixpkgs nixpkgs/${{ env.CURRENT_STABLE_CHANNEL }}
    - name: Test git submodules
      run: |
        . /etc/static/bashrc

        mkdir -p /tmp/{test-nix-darwin-submodules,example-submodule}

        pushd /tmp/example-submodule
          echo '"hello"' > hello.nix
          git init
          git add .
          git commit -m "add a submodule we will import"
        popd

        cp -a ./modules/examples/. /tmp/test-nix-darwin-submodules
        cp -a ./modules/examples/flake/flake.nix /tmp/test-nix-darwin-submodules

        pushd /tmp/test-nix-darwin-submodules
          /usr/bin/sed -i.bak \
            '\#modules = \[#s#configuration#configuration ./simple.nix#' \
            ./flake.nix
          /usr/bin/sed -i.bak \
            's#pkgs.vim#pkgs."${import ./submodule-test/hello.nix}"#' \
            ./simple.nix
          git init
          git add flake.nix simple.nix
          git \
            -c protocol.file.allow=always \
            submodule add /tmp/example-submodule submodule-test
        popd

        # Should fail
        darwin-rebuild build \
          --flake /tmp/test-nix-darwin-submodules#simple \
          --override-input nix-darwin . \
          --override-input nixpkgs nixpkgs/${{ env.CURRENT_STABLE_CHANNEL }} \
          && {
            printf 'succeeded while expecting failure due to submodule\n' >/dev/stderr
            exit 1
          }
        # Should also fail
        darwin-rebuild build \
          --flake /tmp/test-nix-darwin-submodules?submodules=0#simple \
          --override-input nix-darwin . \
          --override-input nixpkgs nixpkgs/${{ env.CURRENT_STABLE_CHANNEL }} \
          && {
            printf 'succeeded while expecting failure due to submodule\n' >/dev/stderr
            exit 1
          }

        # Should succeed
        darwin-rebuild build \
          --flake /tmp/test-nix-darwin-submodules?submodules=1#simple \
          --override-input nix-darwin . \
          --override-input nixpkgs nixpkgs/${{ env.CURRENT_STABLE_CHANNEL }} \

  install-flake-against-unstable:
    runs-on: macos-12
    timeout-minutes: 30
    steps:
    - uses: actions/checkout@v3
    - name: Install nix from current unstable channel
      uses: cachix/install-nix-action@v23
    - name: Install nix-darwin
      run: |
        mkdir -p ~/.config/nix-darwin
        darwin=$(pwd)
        pushd ~/.config/nix-darwin
          nix flake init -t $darwin
          nixConfHash=$(shasum -a 256 /etc/nix/nix.conf | cut -d ' ' -f 1)
          /usr/bin/sed -i.bak \
            "s/# nix.package = pkgs.nix;/nix.settings.access-tokens = [ \"github.com=\${{ secrets.GITHUB_TOKEN }}\" ]; environment.etc.\"nix\/nix.conf\".knownSha256Hashes = [ \"$nixConfHash\" ];/" \
            flake.nix
        popd
        nix run .#darwin-rebuild -- \
          switch --flake ~/.config/nix-darwin#simple \
          --override-input nix-darwin . \
          --override-input nixpkgs nixpkgs/nixpkgs-unstable
    - name: Rebuild and activate simple flake, but this time using nix-darwin's flake interface
      run: |
        . /etc/static/bashrc
        darwin-rebuild build --flake ./modules/examples/flake#simple --override-input nix-darwin . --override-input nixpkgs nixpkgs/nixpkgs-unstable
    - name: Test git submodules
      run: |
        . /etc/static/bashrc

        mkdir -p /tmp/{test-nix-darwin-submodules,example-submodule}

        pushd /tmp/example-submodule
          echo '"hello"' > hello.nix
          git init
          git add .
          git commit -m "add a submodule we will import"
        popd

        cp -a ./modules/examples/. /tmp/test-nix-darwin-submodules
        cp -a ./modules/examples/flake/flake.nix /tmp/test-nix-darwin-submodules

        pushd /tmp/test-nix-darwin-submodules
          /usr/bin/sed -i.bak \
            '\#modules = \[#s#configuration#configuration ./simple.nix#' \
            ./flake.nix
          /usr/bin/sed -i.bak \
            's#pkgs.vim#pkgs."${import ./submodule-test/hello.nix}"#' \
            ./simple.nix
          git init
          git add flake.nix simple.nix
          git \
            -c protocol.file.allow=always \
            submodule add /tmp/example-submodule submodule-test
        popd

        # Should fail
        darwin-rebuild build \
          --flake /tmp/test-nix-darwin-submodules#simple \
          --override-input nix-darwin . \
          --override-input nixpkgs nixpkgs/nixpkgs-unstable \
          && {
            printf 'succeeded while expecting failure due to submodule\n' >/dev/stderr
            exit 1
          }

        # Should also fail
        darwin-rebuild build \
          --flake /tmp/test-nix-darwin-submodules?submodules=0#simple \
          --override-input nix-darwin . \
          --override-input nixpkgs nixpkgs/nixpkgs-unstable \
          && {
            printf 'succeeded while expecting failure due to submodule\n' >/dev/stderr
            exit 1
          }

        # Should succeed
        darwin-rebuild build \
          --flake /tmp/test-nix-darwin-submodules?submodules=1#simple \
          --override-input nix-darwin . \
          --override-input nixpkgs nixpkgs/nixpkgs-unstable

        # Should also succeed
        darwin-rebuild build \
          --flake git+file:///tmp/test-nix-darwin-submodules?submodules=1#simple \
          --override-input nix-darwin . \
          --override-input nixpkgs nixpkgs/nixpkgs-unstable