updated the installTasks to avoid delete internal libraries inside synthDrivers/ibmtts when reinstalling the add-on

Author: davidacm

addon/installTasks.py

@@ -2,23 +2,37 @@
 #Copyright (C) 2009 - 2019 David CM, released under the GPL.
 # Author: David CM <[email protected]> and others.
 # note: this file doesn't get settings from the base profile to avoid issues when updating from older versions.
-
-from synthDrivers._settingsDB import appConfig
-import gui, os, wx, addonHandler
+from logHandler import log
+from synthDrivers._settingsDB import appConfig, DEFAULT_LIB_FOLDER
+import globalVars, gui, os, shutil, wx, addonHandler
 addonHandler.initTranslation()
 
+
+def preserveFiles(addonName, folder):
+	"""
+	addonName: the name (identifier) of the addon
+	folder: a path for a folder inside the addonName directory.
+	"""
+	absFolderPath = os.path.abspath(os.path.join(globalVars.appArgs.configPath, "addons", addonName, folder))
+	tempFolder = os.path.abspath(os.path.join(globalVars.appArgs.configPath, "addons", addonName + addonHandler.ADDON_PENDINGINSTALL_SUFFIX, folder))
+	if os.path.isdir(absFolderPath):
+		if os.path.isdir(tempFolder):
+			shutil.rmtree(tempFolder)
+		os.rename(absFolderPath, tempFolder)
+
 msg=""
 if not os.path.exists(os.path.join(os.path.dirname(__file__), 'synthDrivers', appConfig.TTSPath, appConfig.dllName)):
 	# Translators: the message  shown if the driver can't find libraries during installation.
 	msg = _("""The synthesizer won't be available until you set   IBMTTS files. NVDA won't show this synthesizer in teh synthesizers lists because you need to set the IBMTTS files location first.
 	To do it open the NVDA settings dialog, select IBMTTS category and use the "Browse for  IBMTTS library" button to select the IBMTTS files folder.\n""")
 
-# Translators: message box when user is installing the addon in NVDA. 
-#msg += _("""if you are using another copy of IBMTTS or similar with a different name, you should not load this driver in the same NVDA session. If you do it, NVDA will fail.
-#To resolve it switch to another synthesizer (E.G espeak) then restart NVDA. Afther that, you can use this new driver.""")
 
 def onInstall():
-	if msg!="":
+	try:
+		preserveFiles("IBMTTS", fr"synthDrivers\{DEFAULT_LIB_FOLDER}")
+	except:
+		log.warning("error backing data", exc_info=True)
+	if msg != "":
 		gui.messageBox(msg,
 			# Translators: title of message box when user is installing NVDA
 			_("IBMTTS driver for NVDA"), wx.OK)

addon/synthDrivers/_settingsDB.py

@@ -4,12 +4,13 @@
 #synthDrivers/settingsDB.py
 
 from ._configHelper import configSpec, registerConfig, boolValidator
+DEFAULT_LIB_FOLDER = 'ibmtts'
 
 # Add-on config database
 @configSpec("ibmeci")
 class _AppConfig:
 	dllName = ("string(default='eci.dll')", True)
-	TTSPath = ("string(default='ibmtts')", True)
+	TTSPath = ("string(default=DEFAULT_LIB_FOLDER)", True)
 	autoUpdate  = ('boolean(default=True)', True, boolValidator)
 appConfig = registerConfig(_AppConfig)