sbt/util/io/src/test/scala/WithFiles.scala

package sbt

import java.io.File
import IO.{withTemporaryDirectory, write}

object WithFiles
{
	/** Takes the relative path -> content pairs and writes the content to a file in a temporary directory.  The written file
	* path is the relative path resolved against the temporary directory path.  The provided function is called with the resolved file paths
	* in the same order as the inputs. */
	def apply[T](sources: (File, String)*)(f: Seq[File] => T): T =
	{
		withTemporaryDirectory { dir =>
			val sourceFiles =
				for((file, content) <- sources) yield
				{
					assert(!file.isAbsolute)
					val to = new File(dir, file.getPath)
					write(to, content)
					to
				}
			f(sourceFiles)
		}
	}
}