Re: [sbt] use sbt to launch daemon then exit sbt

[Mark Harrah]

On Fri, 7 Dec 2012 04:21:33 -0800 (PST)
Levon Kirakosyan <le...@toort.net> wrote:

> Hi. I'm developing a server application using scala and sbt. Sbt manages a
> bunch of maven dependencies for my project so I need to stick with it. The
> question is how can I start my server as a daemon i.e. launch it as
> independent jvm (it will write it's pid to a file for later kill) and be
> able to end sbt session.

It is best to generate a script and run that outside of sbt. One plugin that generates the script is:

https://github.com/sbt/sbt-start-script

-Mark

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[Levon]

Thanks Mark. I'll try that.

[bwbecker]

On Monday, December 10, 2012 9:24:23 AM UTC-5, Mark Harrah wrote:

On Fri, 7 Dec 2012 04:21:33 -0800 (PST)
Levon Kirakosyan <le...@toort.net> wrote:

> Hi. I'm developing a server application using scala and sbt. Sbt manages a
> bunch of maven dependencies for my project so I need to stick with it. The
> question is how can I start my server as a daemon i.e. launch it as
> independent jvm (it will write it's pid to a file for later kill) and be
> able to end sbt session.

It is best to generate a script and run that outside of sbt.  One plugin that generates the script is:

 https://github.com/sbt/sbt-start-script

-Mark

Thanks for the reference to sbt-start-script.  Looks like just the tool I need, but it's not working for me.

I've added

addSbtPlugin("com.typesafe.sbt" % "sbt-start-script" % "0.6.0")

to ~/.sbt/plugins/plugins.sbt, reloaded and updated.  SBT reports

[info] downloading http://scalasbt.artifactoryonline.com/scalasbt/sbt-plugin-releases/com.typesafe.sbt/sbt-start-script/scala_2.9.2/sbt_0.12/0.6.0/jars/sbt-start-script.jar ...

[info] [SUCCESSFUL ] com.typesafe.sbt#sbt-start-script;0.6.0!sbt-start-script.jar (614ms)

but when I attempt to use

> add-start-script-tasks

[error] Not a valid command: add-start-script-tasks

[error] Expected '/'

[error] Expected ':'

[error] Not a valid key: add-start-script-tasks

[error] add-start-script-tasks

[error]                       ^

I don't know how to debug this one.  Suggestions on how to proceed?

Thanks,

 

[Indrajit Raychaudhuri]

`about` command at sbt prompt should show the plugins available. If it doesn't show "com.typesafe.sbt.SbtStartScript" under 'Available Plugins', which I suspect is the case here, your 'plugins' project has gone stale.

Do these at your console and you'll be all set:

> reload plugins

> clean

> reload return

Mark is likely to come up with a better idea though.

- Indrajit

Thanks,

 

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