lib/util.py

   1 import os
   2 import platform
   3 import sys
   4
   5 def print_error(*args):
   6     for item in args:
   7       sys.stderr.write(str(item))
   8     sys.stderr.write("\n")
   9     sys.stderr.flush()
  10
  11 def appdata_dir():
  12     if platform.system() == "Windows":
  13         return os.path.join(os.environ["APPDATA"], "Electrum")
  14     elif platform.system() == "Linux":
  15         return os.path.join(sys.prefix, "share", "electrum")
  16     elif (platform.system() == "Darwin" or
  17           platform.system() == "DragonFly"):
  18         return "/Library/Application Support/Electrum"
  19     else:
  20         raise Exception("Unknown system")
  21
  22 def get_resource_path(*args):
  23     return os.path.join(".", *args)
  24
  25 def local_data_dir():
  26     assert sys.argv
  27     prefix_path = os.path.dirname(sys.argv[0])
  28     local_data = os.path.join(prefix_path, "data")
  29     return local_data
  30
  31 def load_theme_name(theme_path):
  32     try:
  33         with open(os.path.join(theme_path, "name.cfg")) as name_cfg_file:
  34             return name_cfg_file.read().rstrip("\n").strip()
  35     except IOError:
  36         return None
  37
  38 def theme_dirs_from_prefix(prefix):
  39     if not os.path.exists(prefix):
  40         return []
  41     theme_paths = {}
  42     for potential_theme in os.listdir(prefix):
  43         theme_full_path = os.path.join(prefix, potential_theme)
  44         theme_css = os.path.join(theme_full_path, "style.css")
  45         if not os.path.exists(theme_css):
  46             continue
  47         theme_name = load_theme_name(theme_full_path)
  48         if theme_name is None:
  49             continue
  50         theme_paths[theme_name] = prefix, potential_theme
  51     return theme_paths
  52
  53 def load_theme_paths():
  54     theme_paths = {}
  55     prefixes = (local_data_dir(), appdata_dir())
  56     for prefix in prefixes:
  57         theme_paths.update(theme_dirs_from_prefix(prefix))
  58     return theme_paths
  59