name: CI

on:
  pull_request:
  push:
    branches: [main]

jobs:
  lints:
    name: Lints
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v3
      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@main
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
      - name: Cache lint store (x86_64-linux)
        id: lint-store-x86_64-linux
        uses: actions/cache@v3
        with:
          path: ~/.ci-store
          key: lint-store-x86_64-linux-${{ hashFiles('**/Cargo.lock', '**/flake.lock') }}-v1
      - name: Check rustfmt
        run: nix develop --store ~/.ci-store --command check-rustfmt
      - name: Check Spelling
        run: nix develop --store ~/.ci-store --command check-spelling
      - name: Check nixpkgs-fmt formatting
        run: nix develop --store ~/.ci-store --command check-nixpkgs-fmt
      - name: Check EditorConfig conformance
        run: nix develop --store ~/.ci-store --command check-editorconfig

  build-x86_64-linux:
    name: Build x86_64 Linux
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v3
      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@main
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
      - name: Cache build store (x86_64-linux)
        id: build-store-x86_64-linux
        uses: actions/cache@v3
        with:
          path: ~/.ci-store
          key: build-store-x86_64-linux-${{ hashFiles('**/Cargo.lock', '**/flake.lock') }}-v1
      - name: Build `nix-installer-static`
        run: nix build --store ~/.ci-store --print-build-logs .#packages.x86_64-linux.nix-installer-static
      - name: Copy artifact
        run: |
          RESULT=$(nix eval --raw --store ~/.ci-store --print-build-logs .#packages.x86_64-linux.nix-installer-static --apply "x: \"$HOME/.ci-store\${x}\"")
          cp $RESULT/bin/nix-installer nix-installer
      - name: Create artifact for x86_64-linux nix-installer
        uses: actions/upload-artifact@v3
        with:
          name: nix-installer-x86_64-linux
          path: |
            nix-installer

  # Various feature variations or versions of the build which we expect to always work
  # Since it uses the `build-store-x86_64-linux-*` cache it should be quite fast
  build-variants-x86_64-linux:
    name: Build x86_64 Linux (Variants)
    runs-on: ubuntu-22.04
    needs: build-x86_64-linux # Only run this if the normal checks work, to avoid clogging builders
    steps:
      - uses: actions/checkout@v3
      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@main
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
      - name: Cache build store (x86_64-linux)
        id: build-store-x86_64-linux
        uses: actions/cache@v3
        with:
          path: ~/.ci-store
          key: build-store-x86_64-linux-${{ hashFiles('**/Cargo.lock', '**/flake.lock') }}-v1
      - name: Build `nix-installer`
        run: nix build --store ~/.ci-store --print-build-logs .#packages.x86_64-linux.nix-installer
      - name: Test `nix develop` build without default features
        run: nix develop --store ~/.ci-store --print-build-logs .# --command "cargo" build --no-default-features
      - name: Test `nix develop` build all features
        run: nix develop --store ~/.ci-store --print-build-logs .# --command "cargo" build --all-features

  run-x86_64-linux:
    name: Run x86_64 Linux
    runs-on: ubuntu-22.04
    needs: [build-x86_64-linux, lints]
    steps:
      - uses: actions/checkout@v3
      - run: sudo apt install fish zsh
      - uses: actions/download-artifact@v3
        with:
          name: nix-installer-x86_64-linux
      - name: Move & set executable
        run: |
          chmod +x ./nix-installer
          mkdir install-root
          cp nix-installer.sh install-root/nix-installer.sh
          mv nix-installer install-root/nix-installer-x86_64-linux
      - name: Initial install
        uses: DeterminateSystems/nix-installer-action@main
        with:
          local-root: install-root/
          logger: pretty
          log-directives: nix_installer=trace
          backtrace: full
          github-token: ${{ secrets.GITHUB_TOKEN }}
      - name: Initial uninstall (without a `nix run` first)
        run: sudo -E /nix/nix-installer uninstall
        env:
          NIX_INSTALLER_NO_CONFIRM: true
          NIX_INSTALLER_LOGGER: pretty
          NIX_INSTALLER_LOG_DIRECTIVES: nix_installer=trace
          RUST_BACKTRACE: full
      - name: Ensure `nix` is removed
        run: |
          if systemctl is-active nix-daemon.socket; then
            echo "nix-daemon.socket was still running"
            exit 1
          fi
          if systemctl is-active nix-daemon.service; then
            echo "nix-daemon.service was still running"
            exit 1
          fi
          if [ -e /nix ]; then
            echo "/nix exists"
            exit 1
          fi
      - name: Repeated install
        uses: DeterminateSystems/nix-installer-action@main
        with:
          local-root: install-root/
          logger: pretty
          log-directives: nix_installer=trace
          backtrace: full
          github-token: ${{ secrets.GITHUB_TOKEN }}
      - name: echo $PATH
        run: echo $PATH
      - name: Test `nix` with `$GITHUB_PATH`
        if: success() || failure()
        run: |
          nix run nixpkgs#fortune
          nix profile install nixpkgs#fortune
          fortune
          nix store gc
          nix run nixpkgs#fortune
      - name: Test bash
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: bash --login {0}
      - name: Test sh
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: sh -l {0}
      - name: Test zsh
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: zsh --login --interactive {0}
      - name: Test fish
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: fish --login {0}
      - name: Repeated uninstall
        run: sudo -E /nix/nix-installer uninstall
        env:
          NIX_INSTALLER_NO_CONFIRM: true
          NIX_INSTALLER_LOGGER: pretty
          NIX_INSTALLER_LOG_DIRECTIVES: nix_installer=trace
          RUST_BACKTRACE: full
      - name: Ensure `nix` is removed
        run: |
          if systemctl is-active nix-daemon.socket; then
            echo "nix-daemon.socket was still running"
            exit 1
          fi
          if systemctl is-active nix-daemon.service; then
            echo "nix-daemon.service was still running"
            exit 1
          fi
          if [ -e /nix ]; then
            echo "/nix exists"
            exit 1
          fi

  run-steam-deck:
    name: Run Steam Deck (mock)
    runs-on: ubuntu-22.04
    needs: [build-x86_64-linux, lints]
    steps:
      - uses: actions/checkout@v3
      - run: sudo apt install fish zsh
      - uses: actions/download-artifact@v3
        with:
          name: nix-installer-x86_64-linux
      - name: Move & set executable
        run: |
          chmod +x ./nix-installer
          mkdir install-root
          cp nix-installer.sh install-root/nix-installer.sh
          mv nix-installer install-root/nix-installer-x86_64-linux
      - name: Make the CI look like a steam deck
        run: |
          mkdir -p ~/bin
          echo -e "#! /bin/sh\nexit 0" | sudo tee -a /bin/steamos-readonly
          sudo chmod +x /bin/steamos-readonly
          sudo useradd -m deck
      - name: Initial install
        uses: DeterminateSystems/nix-installer-action@main
        with:
          local-root: install-root/
          logger: pretty
          log-directives: nix_installer=trace
          backtrace: full
          github-token: ${{ secrets.GITHUB_TOKEN }}
          planner: steam-deck
          extra-args: --persistence /home/runner/.ci-test-nix-home
      - name: Initial uninstall (without a `nix run` first)
        run: sudo -E /nix/nix-installer uninstall
        env:
          NIX_INSTALLER_NO_CONFIRM: true
          NIX_INSTALLER_LOGGER: pretty
          NIX_INSTALLER_LOG_DIRECTIVES: nix_installer=trace
          RUST_BACKTRACE: full
      - name: Ensure `nix` is removed
        run: |
          if systemctl is-active nix-daemon.socket; then
            echo "nix-daemon.socket was still running"
            exit 1
          fi
          if systemctl is-active nix-daemon.service; then
            echo "nix-daemon.service was still running"
            exit 1
          fi
          if [ -e /nix ]; then
            echo "/nix exists"
            exit 1
          fi
          if [ -e /home/runner/.ci-test-nix-home ]; then
            echo "/home/runner/.ci-test-nix-home exists"
            exit 1
          fi
      - name: Repeated install
        uses: DeterminateSystems/nix-installer-action@main
        with:
          local-root: install-root/
          logger: pretty
          log-directives: nix_installer=trace
          backtrace: full
          github-token: ${{ secrets.GITHUB_TOKEN }}
          planner: steam-deck
          extra-args: --persistence /home/runner/.ci-test-nix-home
      - name: echo $PATH
        run: echo $PATH
      - name: Test `nix` with `$GITHUB_PATH`
        if: success() || failure()
        run: |
          nix run nixpkgs#fortune
          nix profile install nixpkgs#fortune
          fortune
          nix store gc
          nix run nixpkgs#fortune
      - name: Test bash
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: bash --login {0}
      - name: Test sh
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: sh -l {0}
      - name: Test zsh
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: zsh --login --interactive {0}
      - name: Test fish
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: fish --login {0}
      - name: Repeated uninstall
        run: sudo -E /nix/nix-installer uninstall
        env:
          NIX_INSTALLER_NO_CONFIRM: true
          NIX_INSTALLER_LOGGER: pretty
          NIX_INSTALLER_LOG_DIRECTIVES: nix_installer=trace
          RUST_BACKTRACE: full
      - name: Ensure `nix` is removed
        run: |
          if systemctl is-active nix-daemon.socket; then
            echo "nix-daemon.socket was still running"
            exit 1
          fi
          if systemctl is-active nix-daemon.service; then
            echo "nix-daemon.service was still running"
            exit 1
          fi
          if [ -e /nix ]; then
            echo "/nix exists"
            exit 1
          fi
          if [ -e /home/runner/.ci-test-nix-home ]; then
            echo "/home/runner/.ci-test-nix-home exists"
            exit 1
          fi

  build-x86_64-darwin:
    name: Build x86_64 Darwin
    runs-on: macos-12
    steps:
      - uses: actions/checkout@v3
      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@main
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
      # Runs clippy as part of the preBuild.
      - name: Build nix-installer
        run: nix build .#packages.x86_64-darwin.nix-installer -L
      - name: Create artifact for x86_64-darwin nix-installer
        uses: actions/upload-artifact@v3
        with:
          name: nix-installer-x86_64-darwin
          path: |
            result/bin/nix-installer

  run-x86_64-darwin:
    name: Run x86_64 Darwin
    runs-on: macos-12
    needs: [build-x86_64-darwin, lints]
    steps:
      - uses: actions/checkout@v3
      - run: brew install fish coreutils
      - uses: actions/download-artifact@v3
        with:
          name: nix-installer-x86_64-darwin
      - name: Move & set executable
        run: |
          chmod +x ./nix-installer
          mkdir install-root
          cp nix-installer.sh install-root/nix-installer.sh
          mv nix-installer install-root/nix-installer-x86_64-darwin
      - name: Initial install
        uses: DeterminateSystems/nix-installer-action@main
        with:
          local-root: install-root/
          logger: pretty
          log-directives: nix_installer=trace
          backtrace: full
          github-token: ${{ secrets.GITHUB_TOKEN }}
          extra-conf: |
            trusted-users = root runner
      - name: Initial uninstall (without a `nix run` first)
        run: sudo -E /nix/nix-installer uninstall
        env:
          NIX_INSTALLER_NO_CONFIRM: true
          NIX_INSTALLER_LOGGER: pretty
          NIX_INSTALLER_LOG_DIRECTIVES: nix_installer=trace
          RUST_BACKTRACE: full
      - name: Repeated install
        uses: DeterminateSystems/nix-installer-action@main
        with:
          local-root: install-root/
          logger: pretty
          log-directives: nix_installer=trace
          backtrace: full
          github-token: ${{ secrets.GITHUB_TOKEN }}
          extra-conf: trusted-users = root runner
      - name: echo $PATH
        run: echo $PATH
      - name: Test `nix` with `$GITHUB_PATH`
        if: success() || failure()
        run: |
          nix run nixpkgs#fortune
          nix profile install nixpkgs#fortune
          fortune
          nix store gc
          nix run nixpkgs#fortune
      - name: Test bash
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: bash --login {0}
      - name: Test sh
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: sh -l {0}
      - name: Test zsh
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: zsh --login --interactive {0}
      - name: Test fish
        run: nix-instantiate -E 'builtins.currentTime' --eval
        if: success() || failure()
        shell: fish --login {0}
      - name: Repeated uninstall
        run: sudo -E /nix/nix-installer uninstall
        env:
          NIX_INSTALLER_NO_CONFIRM: true
          NIX_INSTALLER_LOGGER: pretty
          NIX_INSTALLER_LOG_DIRECTIVES: nix_installer=trace
          RUST_BACKTRACE: full