Precompile -i files for script runner

[som-snytt]

This enables scala -howtorun:script -i t4033b.scala -- t4033.scala
where the main script depends on utility code in the -i files.

Fixes scala/bug#5161

[hrhino]

What did returning ever do to you?

[som-snytt]

Poor return on investment of time in reading that line.

[som-snytt]

@SethTisue Is it possible that Travis just isn't very good at his job? Or maybe he's going through a rough patch at home that has affected his work. Is there something I should type after a Travis failure?

[SethTisue]

re: Travis, I hit "restart" in the web UI. so let's see. but for the record, the error was

java.nio.file.NoSuchFileException: /tmp/scala.picklecache7643988611803649817/tmp/pipelineBase3274412707466812224/projects/m1/p1/target.jar
606	at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
607	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
608	at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
609	at sun.nio.fs.UnixPath.toRealPath(UnixPath.java:837)
610	at scala.tools.nsc.PipelineMainClass.$anonfun$newCompiler$1(PipelineMain.scala:622)
611	at scala.tools.nsc.PipelineMainClass.newCompiler(PipelineMain.scala:619)
612	at scala.tools.nsc.PipelineMainClass$Task.liftedTree1$1(PipelineMain.scala:432)
613	at scala.tools.nsc.PipelineMainClass$Task.compiler$lzycompute(PipelineMain.scala:431)
614	at scala.tools.nsc.PipelineMainClass$Task.compiler(PipelineMain.scala:431)
615	at scala.tools.nsc.PipelineMainClass.$anonfun$process$57(PipelineMain.scala:261)
616	at scala.tools.nsc.PipelineMainClass.$anonfun$process$57$adapted(PipelineMain.scala:261)
617	at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:447)
618	at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
619	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
620	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
621	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
622	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

@retronym does that concern you?

[som-snytt]

I believe it's in the Australian national character not to get too concerned about things.

[som-snytt]

Woo-hoo! It used to be, "Man proposes, God disposes," but now it's, "OMG, what do I do? and Seth clicks a button."

I was curious where that epigram comes from.

https://en.wikipedia.org/wiki/Man_Proposes%2C_God_Disposes

The picture shows some campers who didn't stow their food in the bear-proof locker. The painting depicts the bears from the Coca-cola ad campaign, and is a metaphor for how corporate America feeds on the corpses of its intrepid entrepreneurs.

Now @hrhino can have a beer and click accept.

[hrhino]

Oh come on, it's not like I ever use the script runner. -howtorun looks like a verbose way of writing --help; can we abbreviate it as -h? If you get the syntax wrong it could un-pun it for you and you'd get the explanation of how-to-run with -howtorun.

edit: I can say that it doesn't look obviously wrong.

[som-snytt]

PR incoming for --how-to-pun.

[lrytz]

scala -howtorun:script -i t4033b.scala -- t4033.scala

I wonder if anyone could ever discover this on their own..

[som-snytt]

@lrytz "Normally, there's no way to know this..."

scala/bug#5161 (comment)