Remove dependency on XDG home spec

requirements.txt

@@ -9,7 +9,6 @@ requests
 mbed-ls>=0.2.13
 mbed-host-tests>=1.1.2
 mbed-greentea>=0.2.24
-pyxdg>=0.25
 pycurl>=4
 beautifulsoup4>=4
 fuzzywuzzy>=0.11

tools/arm_pack_manager/__init__.py

@@ -1,4 +1,3 @@
-from xdg.BaseDirectory import save_data_path
 from pycurl import Curl
 from bs4 import BeautifulSoup
 from os.path import join, dirname, basename
@@ -13,6 +12,7 @@ from itertools import takewhile
 import argparse
 from json import dump, load
 from zipfile import ZipFile
+from tempfile import gettempdir
 
 RootPackURL = "http://www.keil.com/pack/index.idx"
 
@@ -82,6 +82,7 @@ class Cache () :
         self._aliases = {}
         self.urls = None
         self.no_timeouts = no_timeouts
+        self.data_path = gettempdir()
 
     def display_counter (self, message) :
         stdout.write("{} {}/{}\r".format(message, self.counter, self.total))
@@ -97,7 +98,7 @@ class Cache () :
         :rtype: None
         """
         if not self.silent : print("Caching {}...".format(url))
-        dest = join(save_data_path('arm-pack-manager'), strip_protocol(url))
+        dest = join(self.data_path, strip_protocol(url))
         try :
             makedirs(dirname(dest))
         except OSError as exc :
@@ -292,7 +293,7 @@ class Cache () :
         self._index = {}
         self.counter = 0
         do_queue(Reader, self._generate_index_helper, self.get_urls())
-        with open(join(save_data_path('arm-pack-manager'), "index.json"), "wb+") as out:
+        with open(LocalPackIndex, "wb+") as out:
             self._index["version"] = "0.1.0"
             dump(self._index, out)
         stdout.write("\n")
@@ -301,7 +302,7 @@ class Cache () :
         self._aliases = {}
         self.counter = 0
         do_queue(Reader, self._generate_aliases_helper, self.get_urls())
-        with open(join(save_data_path('arm-pack-manager'), "aliases.json"), "wb+") as out:
+        with open(LocalPackAliases, "wb+") as out:
             dump(self._aliases, out)
         stdout.write("\n")
 
@@ -339,12 +340,8 @@ class Cache () :
 
         """
         if not self._index :
-            try :
-                with open(join(save_data_path('arm-pack-manager'), "index.json")) as i :
-                    self._index = load(i)
-            except IOError :
-                with open(LocalPackIndex) as i :
-                    self._index = load(i)
+            with open(LocalPackIndex) as i :
+                self._index = load(i)
         return self._index
     @property
     def aliases(self) :
@@ -370,12 +367,8 @@ class Cache () :
 
         """
         if not self._aliases :
-            try :
-                with open(join(save_data_path('arm-pack-manager'), "aliases.json")) as i :
-                    self._aliases = load(i)
-            except IOError :
-                with open(LocalPackAliases) as i :
-                    self._aliases = load(i)
+            with open(join(self.data_path, "aliases.json")) as i :
+                self._aliases = load(i)
         return self._aliases
 
     def cache_everything(self) :
@@ -432,7 +425,7 @@ class Cache () :
         :return: A parsed representation of the PDSC file.
         :rtype: BeautifulSoup
         """
-        dest = join(save_data_path('arm-pack-manager'), strip_protocol(url))
+        dest = join(self.data_path, strip_protocol(url))
         with open(dest, "r") as fd :
             return BeautifulSoup(fd, "html.parser")
 
@@ -446,7 +439,7 @@ class Cache () :
         :return: A parsed representation of the PACK file.
         :rtype: ZipFile
         """
-        return ZipFile(join(save_data_path('arm-pack-manager'),
+        return ZipFile(join(self.data_path,
                             strip_protocol(device['pack_file'])))
 
     def gen_dict_from_cache() :