提供了用于发现和调用外部命令的 SPI，允许开发者来实现自定义的外部命令提供者。
Command |
Represents a command line tool open class Command : Serializable |
CommandInstaller |
Represents a task for command installation open class CommandInstaller : DefaultTask |
CommandProvider |
Represents a command provider interface CommandProvider |
CommandService |
Represents a command service class CommandService |