enabled?:
  - exec_local: test -f $$kameleon_cwd/checkpoint_enabled
  - exec_local: test -S $$qemu_monitor_socket

create:
  - exec_local: echo -e "savevm @microstep_id" | socat - UNIX-CONNECT:$$qemu_monitor_socket

apply:
  - exec_local: |
      [[ ! -f "$$kameleon_cwd/vm_state_to_load.txt" ]] || rm -f $$kameleon_cwd/vm_state_to_load.txt
      if [ -f "$$qemu_image_disk" ] ; then
        _checkpoints=$(qemu-img snapshot -l $$qemu_image_disk | tail -n +3 | awk '{print $2}')
        _checkpoints=($_checkpoints)
        for checkpoint in "${_checkpoints[@]}"; do
          if [ -f "$$kameleon_cwd/vm_state_to_load.txt" ]; then
            echo "Removing old checkpoint $checkpoint"
            qemu-img snapshot -d $checkpoint $$qemu_image_disk
          fi
          if [[ "$checkpoint" == "@microstep_id" ]]; then
              echo "@microstep_id" > $$kameleon_cwd/vm_state_to_load.txt
              qemu-img snapshot -a $checkpoint $$qemu_image_disk
          fi
      done
      fi

clear:
  - exec_local: rm -f $$qemu_image_disk

list:
  - exec_local: |
      if [ -f "$$qemu_image_disk" ] ; then
          qemu-img snapshot -l $$qemu_image_disk | tail -n +3 | awk '{print $2}'
      fi