如何使用sbt-native-packager将参数传递给覆盖的脚本？

Question

I am using sbt-native-packager to build an RPM. I have some custom scripts for preInstall and postInstall as described here . Is there a way to pass parameters to these scripts from sbt?

Thanks

@mgosk thanks for the idea. I'm adding a comment here to be able to format it.

I can't seem to make it work. This is in my sbt file:

val appName = "myApp" + packageSuffix
bashScriptExtraDefines += s"appName=$appName"

This is my scriptlet:

${{template_declares}}
#start (or restart) the service
/etc/init.d/$appName restart

This is what get's generated in the rpm specs:

${{template_declares}}
#start (or restart) the service
/etc/init.d/$appName restart

It's exactly the same thing. No substitution. Am i missing something?

Answer 1

First you need to define extra variable in build.sbt :

bashScriptExtraDefines += s"""FOO=${sbtVariableHere}"""

Next add line ${{template_declares}} to your shell script. Native-packager template parser insert here bashScriptDefines and bashScriptExtraDefines that you define earlier.

There you have more info:

http://www.scala-sbt.org/sbt-native-packager/archetypes/cheatsheet.html#bash-script-src-templates-bash-template

http://www.scala-sbt.org/sbt-native-packager/archetypes/java_app/customize.html#more-complex-scripts