Build hang on compiling scripts in Unity 2018.2

Hi! This was a while ago and I've had loads of issues with similar thing since but I think the was ultimately down to the cache server failing silently. So if you're using that I'd recommend either switching it off or swithing to the new v2 cache server which seems much better for build stuff. Python-wise all I did was check if the editor log had any new input and if it didn't in minutes I'd kill the process and try again.

I also run KillUnityRelatedProcesses() before and after a build run to clean up any leftover processes. It's all a huge pile of hacks but it works most of the time now!

 def KillUnityRelatedProcesses():
     KillVBCS()
     KillUnity()
     KillUnityShaderCompiler()
 
 def KillVBCS():
     KillProcess("VBCSCompiler.exe", True)
 
 def KillUnity():
     KillProcess("Unity.exe", True)
 
 def KillUnityShaderCompiler():
     KillProcess("UnityShaderCompiler.exe", True)
 
 def KillProcess(processName, recursiveKill = False, killcount = 0):
     if GetArgs().allowKillProcesses != 1:
         return
 
     if killcount > 99:
         return
     else:
         if killcount > 0:
             time.sleep(0.5)
 
     tasks = os.popen('tasklist').read()
     
     if processName in tasks:
         print("Killing process: " + processName)
         try:
             os.system("taskkill /F /im %s" % processName)
             if recursiveKill:
                 KillProcess(processName, True, killcount + 1)
         except WindowsError as e:
             print("Coudn't kill process %s. Error: %s" % (processName, e))