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, 3 insertions, 1 deletions

diff --git a/swiftstory/game_manager.py b/swiftstory/game_manager.py
index 6c2da1f..a69704c 100644
--- a/swiftstory/game_manager.py
+++ b/swiftstory/game_manager.py
@@ -3,6 +3,8 @@ import logging
 import os
 from typing import Dict, List
 
+import pkg_resources
+
 from swiftstory.exception import UnsupportedLanguage
 from swiftstory.game import Game
 from swiftstory.cards import Cards
@@ -39,7 +41,7 @@ class GameManager:
 
     def list_languages(self) -> List[str]:
         """ List available languages based on FS. """
-        return next(os.walk("usr/share/swiftstory/lang"))[1]
+        return pkg_resources.resource_listdir(__name__, "data/lang")
 
     def find_by_name(self, game_name: str, lang: str, create=True) -> Game:
         """ Find and return the game that matches the name and language