// serviceSetCharm sets the charm for the given service.
func serviceSetCharm(state *state.State, service *state.Service, url string, force bool) error {
curl, err := charm.ParseURL(url)
if err != nil {
return err
}
if curl.Schema != "cs" {
return fmt.Errorf(`charm url has unsupported schema %q`, curl.Schema)
}
if curl.Revision < 0 {
return fmt.Errorf("charm url must include revision")
}
conn, err := juju.NewConnFromState(state)
if err != nil {
return err
}
ch, err := conn.PutCharm(curl, CharmStore, false)
if err != nil {
return err
}
return service.SetCharm(ch, force)
}