| /* Package action provides implementations for every Glide command. | 
 |  | 
 | This is not a general-purpose library. It is the main flow controller for Glide. | 
 |  | 
 | The main glide package acts as a Facade, with this package providing the | 
 | implementation. This package should know nothing of the command line flags or | 
 | runtime characteristics. However, this package is allowed to control the flow | 
 | of the application, including termination. So actions may call `msg.Die()` to | 
 | immediately stop execution of the program. | 
 |  | 
 | In general, actions are not required to function as library functions, nor as | 
 | concurrency-safe functions. | 
 | */ | 
 | package action |