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package cbt
import java.io._
import java.net._
object ClassPath{
def flatten( classPaths: Seq[ClassPath] ): ClassPath = ClassPath( classPaths.map(_.files).flatten )
}
case class ClassPath(files: Seq[File] = Seq()){
private val duplicates = (files diff files.distinct).distinct
assert(
duplicates.isEmpty,
"Duplicate classpath entries found:\n" ++ duplicates.mkString("\n") ++ "\nin classpath:\n"++string
)
private val nonExisting = files.distinct.filterNot(_.exists)
assert(
nonExisting.isEmpty,
"Classpath contains entires that don't exist on disk:\n" ++ nonExisting.mkString("\n") ++ "\nin classpath:\n"++string
)
def +:(file: File) = ClassPath(file +: files)
def :+(file: File) = ClassPath(files :+ file)
def ++(other: ClassPath) = ClassPath(files ++ other.files)
def string = strings.mkString( File.pathSeparator )
def strings = files.map{
f => f.string + (
// using file extension instead of isDirectory for performance reasons
if( f.getName.endsWith(".jar") /* !f.isDirectory */ ) "" else "/"
)
}.sorted
def verify( lib: Stage1Lib ) = {
val ( directories, jarFiles ) = files.partition(_.isDirectory)
val all = lib.autoRelative(
directories
) ++ jarFiles.flatMap{ f =>
import collection.JavaConverters._
new java.util.jar.JarFile(f).entries.asScala.filterNot(_.isDirectory).toVector.map(
f -> _.toString
)
}
val duplicates =
all
.groupBy( _._2 )
.filter( _._2.size > 1 )
.filter( _._1 endsWith ".class" )
.mapValues( _.map( _._1 ) )
.toSeq
.sortBy( _._1 )
assert(
duplicates.isEmpty,
{
"Conflicting:\n\n" +
duplicates.map{
case ( path, locations ) =>
path + " exits in multiple locations:\n" + locations.mkString("\n")
}.mkString("\n\n")
}
)
}
}
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