buildCompileCmd
fun buildCompileCmd(preCmdSpec: CmdBuilder.() -> Unit = {}, postCmdSpec: CmdBuilder.() -> Unit = {}, compileCmdSpec: CmdBuilder.() -> String): CmdBuilder
Wrapper for building cmdSpec in concrete compile classes that exports compilation command results.
Note that subclasses must override cmdSpec explicitly in order to hold its own cmdSpec.outputHandler
state, used to contain container outputs.