Start(resume)/stop virtual machine by serial number and connect/disconnect with adb. Could be useful to control remote CI Genymotion instance

Script to start-stop Genymotion with connection to ADB

#!/bin/bash

#=====EXAMPLE OF USAGE===============
# $ ./scripts/gm.sh -r 526d4be6-9964-4a84-83fd-31af8029cf44 
# $ ./gradlew clean connectedAndroidTest
# $ ./scripts/gm.sh -s 526d4be6-9964-4a84-83fd-31af8029cf44
#====================================

#===========
# VM helpers

function vm_get_ip_or_wait(){
  local ip="value"; # geustproperty value if vm is not connected
  while [ $ip == "value" ] ; do
    sleep 0.5;
    ip=`VBoxManage guestproperty get $VM androvm_ip_management | awk '{print $2}'`;        
  done;   
  echo $ip
}

function vm_status(){
  VBoxManage list vms -l | grep $VM -A 100 | grep since | sed -e 's/\ \ //g' -e 's/\ (since.*$//g' | cut -d: -f2-
} 

function vm_running(){
  if [[ $(vm_status_contains 'running') ]]; then
    true
  else
    false
  fi
}

function vm_paused(){
  if [[ $(vm_status_contains 'paused') ]]; then
    true
  else
    false
  fi
}

function vm_stopped(){  
  if [[ $(vm_status_contains "powered off") ]]; then
    true
  elif [[ $(vm_status_contains 'aborted') ]]; then
    true
  else
    false
  fi
}

function vm_status_contains(){
  echo $(vm_status) | grep "$1"
}

#==============
# GM start/stop functions 

function start_or_resume_gm(){
  echo "GM :: Trying to start or resume if needed"
  echo "GM :: current status - $(vm_status)"

  if vm_paused; then
    echo "GM :: Trying to resume"
    VBoxManage controlvm $VM resume
  elif vm_stopped; then 
    echo "GM :: Trying to start..."
    VBoxHeadless -s $VM -v off &
  else 
    echo 'Noting to do - already running'
  fi 

  while !(vm_running) ; do
    sleep 1;
  done

  echo "GM final status :: $(vm_status)"    
  
  echo 'ADB :: Connecting...'
  local ip=$(vm_get_ip_or_wait)
  adb connect $ip
  # sleep 5  
}

function pause_gm(){
  echo 'GM :: trying to pause if needed'  

  echo 'ADB :: Disconnecting...'
  local ip=$(vm_get_ip_or_wait)  
  adb disconnect $ip  
  sleep 1

  echo "GM :: current status - $(vm_status)" 
  if !(vm_paused) ; then
    echo "GM :: Trying to pause..."
    `VBoxManage controlvm $VM pause`
    echo "GM :: final status :: $(vm_status)" 
  else
    echo 'Noting to do - already paused'
  fi  
}

##########################
# Entry point

while getopts r:s: flag; do
  VM=${OPTARG};
  case "${flag}" in
    r)  start_or_resume_gm ;;
    s)  pause_gm ;;
  esac
done