check in a copy of the arm-pack-manager index and use it

tools/arm_pack_manager/__init__.py

@@ -16,6 +16,10 @@ from zipfile import ZipFile
 
 RootPackURL = "http://www.keil.com/pack/index.idx"
 
+LocalPackDir = dirname(__file__)
+LocalPackIndex = join(LocalPackDir, "index.json")
+LocalPackAliases = join(LocalPackDir, "aliases.json")
+
 
 protocol_matcher = compile("\w*://")
 def strip_protocol(url) :
@@ -339,7 +343,8 @@ class Cache () :
                 with open(join(save_data_path('arm-pack-manager'), "index.json")) as i :
                     self._index = load(i)
             except IOError :
-                self.generate_index()
+                with open(LocalPackIndex) as i :
+                    self._index = load(i)
         return self._index
     @property
     def aliases(self) :
@@ -369,7 +374,8 @@ class Cache () :
                 with open(join(save_data_path('arm-pack-manager'), "aliases.json")) as i :
                     self._aliases = load(i)
             except IOError :
-                self.generate_aliases()
+                with open(LocalPackAliases) as i :
+                    self._aliases = load(i)
         return self._aliases
 
     def cache_everything(self) :

tools/export/cmsis/__init__.py

@@ -6,8 +6,6 @@ import ntpath
 import re
 import json
 
-from xdg.BaseDirectory import save_data_path
-
 from tools.arm_pack_manager import Cache
 from tools.targets import TARGET_MAP
 from tools.export.exporters import Exporter, TargetNotSupportedException
@@ -34,9 +32,6 @@ class DeviceCMSIS():
     Encapsulates target information retrieved by arm-pack-manager"""
     def __init__(self, target):
         cache = Cache(True, False)
-        data_path = join(save_data_path('arm-pack-manager'), "index.json")
-        if not exists(data_path) or not self.check_version(data_path):
-            cache.cache_descriptors()
 
         t = TARGET_MAP[target]
         self.core = t.core