Make cards be part of the Python package data

We now load the cards using pkg_resources. This is way better in many
aspects:
 * we can install the package using pip without having issues loading
  cards
 * we don't need to chdir to / before running swiftstoryd
 * we don't need to rely on data_files which is deprecated.

Signed-off-by: Olivier Gayot <olivier.gayot@sigexec.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/swiftstory/cards.py b/swiftstory/cards.py
index d570f87..62f1e37 100644
--- a/swiftstory/cards.py
+++ b/swiftstory/cards.py
@@ -1,16 +1,18 @@
 import json
+import os
+
+import pkg_resources
 
 
 class Cards:
     @staticmethod
     def get_white_cards(lang):
         ''' Read the file containing the white cards and return a list of cards '''
-        with open(f'usr/share/swiftstory/lang/{lang}/cards/white.json', encoding='utf-8') as fh:
-            return json.load(fh)
+        fh = pkg_resources.resource_stream(__name__, os.path.join("data/lang", lang, "cards/white.json"))
+        return json.load(fh)
 
     @staticmethod
     def get_black_cards(lang):
         ''' Read the file containing the black cards and return a list of cards '''
-
-        with open(f'usr/share/swiftstory/lang/{lang}/cards/black.json', encoding='utf-8') as fh:
-            return json.load(fh)
+        fh = pkg_resources.resource_stream(__name__, os.path.join("data/lang", lang, "cards/black.json"))
+        return json.load(fh)