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launcher applies initial -Dkey=val arguments as settings for convenience

This commit is contained in:
Mark Harrah 2011-04-19 17:54:29 -04:00
parent bf013d2b3f
commit 818f14a9a6
1 changed files with 15 additions and 2 deletions
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17
launch/Configuration.scala
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@ -7,19 +7,32 @@ import Pre._
import java.io.{File, FileInputStream, InputStreamReader}
import java.net.{MalformedURLException, URI, URL}
import scala.collection.immutable.List
import annotation.tailrec
object Configuration
{
final val SysPropPrefix = "-D"
def parse(file: URL, baseDirectory: File) = Using( new InputStreamReader(file.openStream, "utf8") )( (new ConfigurationParser).apply )
def find(args: List[String], baseDirectory: File): (URL, List[String]) =
@tailrec def find(args: List[String], baseDirectory: File): (URL, List[String]) =
args match
{
case head :: tail if head.startsWith("@")=> (directConfiguration(head.substring(1), baseDirectory), tail)
case head :: tail if head.startsWith("@") => (directConfiguration(head.substring(1), baseDirectory), tail)
case head :: tail if head.startsWith(SysPropPrefix) =>
setProperty(head stripPrefix SysPropPrefix)
find(tail, baseDirectory)
case _ =>
val propertyConfigured = System.getProperty("sbt.boot.properties")
val url = if(propertyConfigured == null) configurationOnClasspath else configurationFromFile(propertyConfigured, baseDirectory)
(url , args)
}
def setProperty(head: String)
{
val keyValue = head.split("=",2)
if(keyValue.length != 2)
System.err.println("Warning: invalid system property '" + head + "'")
else
System.setProperty(keyValue(0), keyValue(1))
}
def configurationOnClasspath: URL =
{
resourcePaths.iterator.map(getClass.getResource).find(_ ne null) getOrElse