modules/libjuju/juju/tag.py

   1 # TODO: Tags should be a proper class, so that we can distinguish whether
   2 # something is already a tag or not.  For example, 'user-foo' is a valid
   3 # username, but is ambiguous with the already-tagged username 'foo'.
   4
   5
   6 def _prefix(prefix, s):
   7     if s and not s.startswith(prefix):
   8         return '{}{}'.format(prefix, s)
   9     return s
  10
  11
  12 def untag(prefix, s):
  13     if s and s.startswith(prefix):
  14         return s[len(prefix):]
  15     return s
  16
  17
  18 def cloud(cloud_name):
  19     return _prefix('cloud-', cloud_name)
  20
  21
  22 def credential(cloud, user, credential_name):
  23     credential_string = '{}_{}_{}'.format(cloud, user, credential_name)
  24     return _prefix('cloudcred-', credential_string)
  25
  26
  27 def model(cloud_name):
  28     return _prefix('model-', cloud_name)
  29
  30
  31 def user(username):
  32     return _prefix('user-', username)
  33
  34
  35 def application(app_name):
  36     return _prefix('application-', app_name)
  37
  38
  39 def action(action_uuid):
  40     return _prefix('action-', action_uuid)