add simple tkinter gui to install_update.py

install_update.py

@@ -1,4 +1,6 @@
 import zipfile, tarfile, platform, os, time, shutil
+from tkinter import Tk, HORIZONTAL
+from tkinter.ttk import Progressbar, Label
 
 ext = {
     "Windows": "zip",
@@ -12,18 +14,32 @@ def extractzip(): # Mac
     if platform.system() == "Darwin": shutil.rmtree("AO2XP.app", ignore_errors=True) # delete the old app package.
     archive.extractall() # extract the new version
 
+    if os.path.exists("appbase"): # on a mac with the base folder moved out of .app Resources folder
+        os.system("mv appbase AO2XP.app/Contents/Resources/") # put it back in place
+
 def extractgz(): # Linux
     archive = tarfile.open("update.tar.gz")
     archive.extractall()
 
 
 if os.path.exists("update." + ext[platform.system()]):
-    print "Waiting 3 seconds for AO2XP to close..."
+    window = Tk()
+    window.title("AO2XP updater")
+    window.wm_resizable(0,0)
+    window.geometry("256x56")
+    lb = Label(window)
+    lb.pack()
+    pb = Progressbar(orient=HORIZONTAL, mode="indeterminate")
+    pb.pack()
+    pb.start()
+
+    lb["text"] = "Waiting 3 seconds for AO2XP to close..."
     time.sleep(3)
-    print "Extracting update." + ext[platform.system()] + "..."
+    lb["text"] = "Extracting update." + ext[platform.system()] + "..."
     globals()["extract" + ext[platform.system()]]() # call the extract function according to OS
-    print "Done!"
+    lb["text"] = "Done!\nYou can now start AO2XP."
     os.remove("update." + ext[platform.system()])
+    time.sleep(4)
 
 else:
     print "This program will be automatically run by AO2XP to apply updates.\nYou do not need to run this yourself."