sbtのタスク sbtを起動中とする。tasksと入力すると一覧がでる。 > tasks This is a list of tasks defined for the current project. It does not list the scopes the tasks are defined in; use the 'inspect' command for that. Tasks produce values. Use the 'show' command to run the task and print the resulting value. clean Deletes files produced by the build, such as generated sources, compiled classes, and task caches. compile Com