Running Scala shell scripts with library dependencies

archiveDesktopFiles.scala

#!/bin/sh
exec /Users/sroebuck/local/bin/scalas $0 $@
!#
/***
    libraryDependencies ++= Seq(
        "com.github.scala-incubator.io" %% "scala-io-file" % "0.2.0",
        "joda-time" % "joda-time" % "2.0",
        "org.joda" % "joda-convert" % "1.1"
    )
*/

import org.joda.time.LocalDate
import scalax.file.Path

val desktop = Path("/Users/sroebuck/Desktop")
val archive = Path("/Users/sroebuck/Archive/Desktop")

/**
 * Copy all the files on the Desktop that were not modified today into the file archive.
 */

val files = desktop.children()
val filtered = files.filter(f => new LocalDate(f.lastModified).isBefore(new LocalDate))
val grouped = filtered.groupBy(f => new LocalDate(f.lastModified).withDayOfMonth(1))
grouped.foreach {
    case (date, files) => 
        val year = date.getYear
        val month = date.getMonthOfYear
        val dir = archive \ year.toString \ "%04d-%02d".format(year,month)
        dir.createDirectory(failIfExists=false)
        files.foreach {
            file =>
                println("Moving '%s' to '%s'".format(file.name, dir.path))
                file.moveTo(dir \ file.name)
        }
}

scalas

#!/bin/sh

    java -Dsbt.main.class=sbt.ScriptMain \
         -Dsbt.boot.directory=/home/myhome/.sbt/boot \
         -Dsbt.log.noformat=true \
         -jar /the/path/to/my/sbt/0.11.2/libexec/sbt-launch.jar "$@"

• archiveDesktopFiles.scala is a Scala script which has dependencies on three external libraries.
• scalas is just a shell script which runs scalas which is part of a normal install of sbt but isn't provided with a command line executable.

Further explanation of scalas can be found here: https://github.com/harrah/xsbt/wiki/Scripts.