chrome/common/extensions/docs/server2/platform_util.py

   1 # Copyright 2014 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 from path_util import AssertIsValid
   6
   7
   8 _EXTENSION_TYPES = {'extensions': 'extension', 'apps': 'platform_app'}
   9
  10
  11 def GetPlatforms():
  12   return ('apps', 'extensions')
  13
  14
  15 def GetExtensionTypes():
  16   return ('platform_app', 'extension')
  17
  18
  19 def ExtractPlatformFromURL(url):
  20   '''Returns 'apps' or 'extensions' depending on the URL.
  21   '''
  22   AssertIsValid(url)
  23   platform = url.split('/', 1)[0]
  24   if platform not in GetPlatforms():
  25     return None
  26   return platform
  27
  28
  29 def PluralToSingular(platform):
  30   '''Converts 'apps' to 'app' and 'extensions' to 'extension'.
  31   '''
  32   assert platform in GetPlatforms(), platform
  33   return platform[:-1]
  34
  35
  36 def PlatformToExtensionType(platform):
  37   assert platform in GetPlatforms(), platform
  38   return _EXTENSION_TYPES[platform]