Minor Description
sbt-revolver is a very useful sbt plugin for development. You can start & stop long-running processes without being forced to kill the entire sbt session. This can save a lot of time in the development cycle.
With sbt-revolver, you run re-start to start your app in a forked jvm. It immediately gives you the sbt shell back, so you can continue to code. When you want to reload your app with whatever changes you make, you just run re-start again – it will kill the forked jvm, recompile your code, and start the process again. (Or you can run re-stop at any time to kill the forked jvm.)
I used this a ton while working on adding json support to the UI in https://issues.apache.org/jira/browse/SPARK-3454 (as the history server never stops, without this plugin I had to kill sbt between every time I'd run it manually to play with the behavior.) I don't write a lot of spark-streaming jobs, but I've also used this plugin in that case, since again my streaming jobs never terminate – I imagine it would be really useful to anybody that is modifying streaming and wants to test out running some jobs.
I'll post a PR.
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