name: ISOBuilder

# Controls when the action will run. 
on:
  # Triggers the workflow on push or pull request events for the main branch.
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

  # Run workflow from the Action Tab.
  workflow_dispatch:

jobs:
  build:
    # The type of runner that the job will run on
    runs-on: ubuntu-20.04

    # Steps represent a sequence of tasks that will be executed as part of the job.
    steps:
      
      # Makes my repo accessible.
      - uses: actions/checkout@v2

      - name: Downloading the latest Arch Linux ISO.
        run: curl -sL http://mirrors.mit.edu/archlinux/iso/latest/archlinux-2021.02.01-x86_64.iso > archlinux.iso
      
      - name: Installing mkisofs.
        run: sudo apt-get install mkisofs -y
      
      - name: Creating the ISO mountpoint.
        run: sudo mkdir ~/archiso
      
      - name: Mounting the ISO.
        run: sudo mount archlinux.iso ~/archiso
      
      - name: Copying the files from the ISO to a new folder.
        run: sudo cp -r ~/archiso ~/archiso_new
      
      - name: Extracting squashfs.
        run: sudo unsquashfs ~/archiso_new/arch/x86_64/airootfs.sfs
      
      - name: Setting up permissions.
        run: sudo chmod +x ~/work/easy-arch/easy-arch/easy-arch.sh
      
      - name: Copying easy-arch.sh script.
        run: sudo cp ~/work/easy-arch/easy-arch/easy-arch.sh ~/work/easy-arch/easy-arch/squashfs-root/root
      
      - name: Recreating squashfs.
        run: sudo mksquashfs ~/work/easy-arch/easy-arch/squashfs-root ~/airootfs.sfs
      
      - name: Removing the old airootfs.sfs.
        run: sudo rm -rf ~/archiso_new/arch/x86_64/airootfs.sfs
      
      - name: Copying the modified airootfs.sfs into the new ISO.
        run: sudo mv ~/airootfs.sfs ~/archiso_new/arch/x86_64/
      
      - name: Creating the new Arch Linux ISO.
        run: sudo mkisofs -lJR -o archlinux_easy.iso ~/archiso_new/
      
      - uses: actions/upload-artifact@v2
        with:
          name: Download ISO.
          path: ~/work/easy-arch/easy-arch/archlinux_easy.iso