// GetCurrentModel returns the name of the current Juju model.
//
// If $JUJU_MODEL is set, use that. Otherwise, get the current
// controller by reading $XDG_DATA_HOME/juju/current-controller,
// and then identifying the current model for that controller
// in models.yaml. If there is no current controller, or no
// current model for that controller, then an empty string is
// returned. It is not an error to have no default model.
func GetCurrentModel(store jujuclient.ClientStore) (string, error) {
if model := os.Getenv(osenv.JujuModelEnvKey); model != "" {
return model, nil
}
currentController, err := ReadCurrentController()
if err != nil {
return "", errors.Trace(err)
}
if currentController == "" {
return "", nil
}
currentAccount, err := store.CurrentAccount(currentController)
if errors.IsNotFound(err) {
return "", nil
} else if err != nil {
return "", errors.Trace(err)
}
currentModel, err := store.CurrentModel(currentController, currentAccount)
if errors.IsNotFound(err) {
return "", nil
} else if err != nil {
return "", errors.Trace(err)
}
return currentModel, nil
}
func (c *logoutCommand) logout(store jujuclient.ClientStore, controllerName string) error {
accountName, err := store.CurrentAccount(controllerName)
if errors.IsNotFound(err) {
// Not logged in; nothing else to do.
return nil
} else if err != nil {
return errors.Trace(err)
}
accountDetails, err := store.AccountByName(controllerName, accountName)
if errors.IsNotFound(err) {
// Not logged in; nothing else to do.
return nil
} else if err != nil {
return errors.Trace(err)
}
// We first ensure that the user has a macaroon, which implies
// they know their password. If they have just bootstrapped,
// they will have a randomly generated password which they will
// be unaware of.
if accountDetails.Macaroon == "" && accountDetails.Password != "" && !c.Force {
return errors.New(`preventing account loss
It appears that you have not changed the password for
your account. If this is the case, change the password
first before logging out, so that you can log in again
afterwards. To change your password, run the command
"juju change-user-password".
If you are sure you want to log out, and it is safe to
clear the credentials from the client, then you can run
this command again with the "--force" flag.
`)
}
// Remove the account credentials.
if err := store.RemoveAccount(controllerName, accountName); err != nil {
return errors.Annotate(err, "failed to clear credentials")
}
return nil
}