Scala example source code file (PathSettings.scala)

This example Scala source code file (PathSettings.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

directory, directory, file, file, list, list, neither, no, partestdefaults, pathsettings, pathsettings

The Scala PathSettings.scala source code

/* NEST (New Scala Test)
 * Copyright 2007-2011 LAMP/EPFL
 */

package scala.tools.partest
package nest

import scala.tools.nsc.Properties.{ setProp, propOrEmpty, propOrNone, propOrElse }
import scala.tools.nsc.util.ClassPath
import scala.tools.nsc.io
import io.{ Path, File, Directory }
import RunnerUtils._

object PathSettings {
  import PartestDefaults.{ testRootDir, srcDirName }
    
  private def cwd = Directory.Current getOrElse sys.error("user.dir property not set")
  private def isPartestDir(d: Directory) = (d.name == "test") && (d / srcDirName isDirectory)
  
  // Directory <root>/test
  lazy val testRoot: Directory = testRootDir getOrElse {
    val candidates: List[Directory] = (cwd :: cwd.parents) flatMap (d => List(d, Directory(d / "test")))
    
    candidates find isPartestDir getOrElse sys.error("Directory 'test' not found.")
  }
  
  // Directory <root>/test/files
  lazy val srcDir = Directory(testRoot / srcDirName normalize)
  
  // Directory <root>/test/files/lib
  lazy val srcLibDir = Directory(srcDir / "lib")
  
  // Directory <root>/test/files/speclib
  lazy val srcSpecLibDir = Directory(srcDir / "speclib")
  
  lazy val srcSpecLib: File = srcSpecLibDir.files find (_.name startsWith "instrumented") getOrElse {
    sys.error("No instrumented.jar found in %s".format(srcSpecLibDir))
  }
  
  // Directory <root>/build
  lazy val buildDir: Directory = {
    val bases      = testRoot :: testRoot.parents
    // In the classic "ant" build, the relevant subdirectory is called build,
    // but in the postmodern "sbt" build, it is called target.  Look for both.
    val dirs = Path.onlyDirs(bases flatMap (x => List(x / "build", x / "target")))
    
    dirs.headOption getOrElse sys.error("Neither 'build' nor 'target' dir found under test root " + testRoot + ".")
  }
  
  // Directory <root>/build/pack/lib
  lazy val buildPackLibDir = Directory(buildDir / "pack" / "lib")
  
  lazy val scalaCheck: File =
    buildPackLibDir.files ++ srcLibDir.files find (_.name startsWith "scalacheck") getOrElse {
      sys.error("No scalacheck jar found in '%s' or '%s'".format(buildPackLibDir, srcLibDir))      
    }
}

class PathSettings() {
  // def classpathAsURLs: List[URL]
}