extract-rootfs.yml

name: Generate install.sfs & initrd_lib.tar.gz from Docker Image

on:
  schedule:
    - cron: "0 0 15 * *"
  push:
    branches:
      - main
      - ceres
      - downstream
    tags:
      - 'v*'
  pull_request:
    branches:
      - main
  workflow_dispatch:

jobs:
  build:
    strategy:
      matrix:
        os: [ubuntu-latest]
    runs-on: ${{ matrix.os }}
    steps:
      - name: Check out
        uses: actions/checkout@v4

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build Docker Image
        run: |
          docker build -f Dockerfile . -t devuan

      - name: Extract RootFS & generate install.sfs & initrd_lib.tar.gz
        run: |
          # Create Docker image
          docker create --name devuan devuan echo "Devuan"

          # Export it to install
          mkdir install
          docker export devuan | tar -C install -p -s -xv

          # Move grub-rescue.iso out
          mv install/grub-rescue.iso .

          # Remove .dockerenv
          rm -rf install/.dockerenv

          # Copy boot_hybrid.img for Legacy BIOS
          cp install/usr/lib/grub/i386-pc/boot_hybrid.img .

          # Copy initrd_lib.tar.gz
          cp install/initrd_lib.tar.gz .

          # Change ownership of install/ to 0:0
          sudo chown -R 0:0 install

          # Change chmod of dbus-daemon-launch-helper to 4754 with ownership 0:101
          sudo chown 0:101 install/usr/lib/dbus-1.0/dbus-daemon-launch-helper
          sudo chmod 4754 install/usr/lib/dbus-1.0/dbus-daemon-launch-helper

          # Create install.sfs
          sudo mksquashfs install install.sfs -noappend -comp zstd
          sudo chmod 755 install.sfs

          # Clean up
          sudo rm -rf docker_busybox rootfs_busybox.tar.gz install initrd_lib
          docker rm devuan

      - name: Set Vars
        id: vars
        run: |
          echo "arch=$(dpkg --print-architecture)" >> "$GITHUB_OUTPUT"

      - name: Upload install.sfs
        uses: actions/upload-artifact@v4
        with:
          name: install.sfs
          path: install.sfs

      - name: Upload initrd_lib.tar.gz
        uses: actions/upload-artifact@v4
        with:
          name: initrd_lib.tar.gz
          path: initrd_lib.tar.gz

      - name: Upload grub-rescue.iso
        uses: actions/upload-artifact@v4
        with:
          name: grub-rescue.iso
          path: grub-rescue.iso

      - name: Upload boot_hybrid.img
        uses: actions/upload-artifact@v4
        with:
          name: boot_hybrid.img
          path: boot_hybrid.img

  release:
    name: Release
    needs: build
    if: ((github.event_name == 'push' || github.event_name == 'workflow_dispatch') && startsWith(github.ref, 'refs/tags/'))
    runs-on: ubuntu-latest
    steps:
      - name: Download RootFS
        id: download-rootfs
        uses: actions/download-artifact@v4
        with:
          path: out
          pattern: "*"
          merge-multiple: true

      - name: List Files
        run: ls -R ${{ steps.download-rootfs.outputs.download-path }}

      - uses: "softprops/action-gh-release@v2.1.0"
        with:
          token: "${{ secrets.RELEASE_TOKEN }}"
          prerelease: false
          files: |
            ${{ steps.download-rootfs.outputs.download-path }}/*

  monthly-release:
    name: Monthly release
    needs: build
    if: (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
    runs-on: ubuntu-latest
    steps:
      - name: Download rootfs
        id: download-rootfs
        uses: actions/download-artifact@v4
        with:
          path: out
          pattern: "*"
          merge-multiple: true
      - name: List Files
        run: ls -R ${{ steps.download-rootfs.outputs.download-path }}
    
      - uses: "softprops/action-gh-release@v2.1.0"
        with:
          token: "${{ secrets.RELEASE_TOKEN }}"
          prerelease: false
          tag_name: "r${{ github.run_number }}"
          name: "Monthly release r${{ github.run_number }}"
          files: |
            ${{ steps.download-rootfs.outputs.download-path }}/*