mirror of https://github.com/sbt/sbt.git
45 lines
1.5 KiB
Scala
45 lines
1.5 KiB
Scala
/* sbt -- Simple Build Tool
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* Copyright 2008 Mark Harrah, David MacIver
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*/
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package sbt
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import java.io.File
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import scala.collection.mutable.{HashSet, Set}
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trait Format[T]
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{
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def toString(t: T): String
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def fromString(s: String): T
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}
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abstract class SimpleFormat[T] extends Format[T]
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{
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def toString(t: T) = t.toString
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}
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object Format
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{
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def path(basePath: Path): Format[Path] = new Format[Path]
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{
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def toString(path: Path) = Path.relativize(basePath.asFile, path.asFile).getOrElse(error("Path " + path + " not in " + basePath))
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def fromString(s: String) = Path.fromString(basePath, s)
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}
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implicit val file: Format[File] = new Format[File]
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{
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def toString(file: File) = file.getAbsolutePath
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def fromString(s: String) = (new File(s)).getAbsoluteFile
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}
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implicit val hash: Format[Array[Byte]] = new Format[Array[Byte]]
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{
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def toString(hash: Array[Byte]) = Hash.toHex(hash)
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def fromString(hash: String) = Hash.fromHex(hash)
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}
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def set[T](implicit format: Format[T]): Format[Set[T]] = new Format[Set[T]]
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{
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def toString(set: Set[T]) = set.toList.map(format.toString).mkString(File.pathSeparator)
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def fromString(s: String) = (new HashSet[T]) ++ IO.pathSplit(s).map(_.trim).filter(!_.isEmpty).map(format.fromString)
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}
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implicit val string: Format[String] = new SimpleFormat[String] { def fromString(s: String) = s }
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/*implicit val test: Format[Discovered] = new SimpleFormat[Discovered]
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{
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def fromString(s: String) = DiscoveredParser.parse(s).fold(error, x => x)
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}*/
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} |