# title: install
# desc: generate a guix installer image
# adapted from https://github.com/SystemCrafters/guix-installer/

name: installer

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: docker

    container:
      image: alpine:3.21
      options: "--privileged" # needed for guix

    steps:
      - name: Install dependencies
        run: |
          apk add --no-cache git nodejs util-linux

      - name: Git checkout
        uses: actions/checkout@v4

      - name: Guix cache
        uses: actions/cache/restore@v4
        with:
          path: ~/.cache/guix
          key: guix-cache-${{ github.sha }}
          restore-keys: |
            guix-cache-

      - name: Install guix
        run: |
          SUBSTITUTE_URLS="https://ci.guix.gnu.org https://bordeaux.guix.gnu.org https://substitutes.nonguix.org https://substitutes.freya.cat"

          apk add --no-cache guix openrc udev-init-scripts-openrc sed
          sed -i 's/#rc_sys=""/rc_sys="docker"/' /etc/rc.conf

          cat <<EOF > /etc/init.d/guix-daemon
          #!/sbin/openrc-run
          start(){ guix-daemon --build-users-group=guixbuild --substitute-urls="$SUBSTITUTE_URLS" & }
          EOF
          chmod +x /etc/init.d/guix-daemon

          rc-update add guix-daemon
          openrc boot

      - name: Set environment
        run: |
          echo "GUIX_RETRY_NO_PROMPT=yes" >> $GITHUB_ENV
          echo "GUIX_RETRY_NO_TTY=yes" >> $GITHUB_ENV

      - name: Setup channels
        run: |
          guix archive --authorize < ./files/keys/nonguix.pub
          guix archive --authorize < ./files/keys/sakura.pub
          ./scripts/guix-retry guix pull -C ./channels.scm

      - name: Build ISO
        run: |
          GUIX_PROFILE="/root/.config/guix/current"
          . "$GUIX_PROFILE/etc/profile"
          ./scripts/build-installer

      - name: Guix cache save
        uses: actions/cache/save@v4
        with:
          path: ~/.cache/guix
          key: guix-cache-${{ github.sha }}

      - name: Save artifact
        uses: actions/upload-artifact@v4
        with:
          name: installer
          path: guix-installer-*.iso