mirror of https://github.com/sbt/sbt.git
44 lines
1.9 KiB
Scala
44 lines
1.9 KiB
Scala
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package xsbt.boot
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import java.io.{File, FileInputStream, InputStreamReader}
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import java.net.{URI, URL}
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object Configuration
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{
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def parse(file: URL, baseDirectory: File) = Using( new InputStreamReader(file.openStream, "utf8") )( (new ConfigurationParser(baseDirectory)).apply )
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def find(args: Seq[String], baseDirectory: File): (URL, Seq[String]) =
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args match
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{
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case Seq(head, tail @ _*) if head.startsWith("@")=> (configurationFromFile(head.substring(1), baseDirectory), tail)
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case _ => (configurationOnClasspath, args)
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}
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def configurationOnClasspath: URL =
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{
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resourcePaths.toStream.map(getClass.getResource).find(_ ne null) getOrElse
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( throw new BootException(resourcePaths.mkString("Could not finder sbt launch configuration. (Searched classpath for ", ",", ")")) )
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}
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def configurationFromFile(path: String, baseDirectory: File): URL =
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{
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def resolve(against: URI): Option[URL] =
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{
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val resolved = against.resolve(path)
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val exists = try { (new File(resolved)).exists } catch { case _: IllegalArgumentException => false }
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if(exists) Some(resolved.toURL) else None
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}
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resolveAgainst(baseDirectory).toStream.flatMap(resolve).firstOption.getOrElse(throw new BootException("Could not find configuration file '" + path + "'."))
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}
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val ConfigurationFilename = "sbt.boot.properties"
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val JarBasePath = "/sbt/"
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def userConfigurationPath = "/" + ConfigurationFilename
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def defaultConfigurationPath = JarBasePath + ConfigurationFilename
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def resourcePaths = Seq(userConfigurationPath, defaultConfigurationPath)
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def resolveAgainst(baseDirectory: File) = Seq(baseDirectory toURI, new File(System.getProperty("user.home")) toURI, classLocation(getClass).toURI)
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def classLocation(cl: Class[_]): URL =
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{
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val codeSource = cl.getProtectionDomain.getCodeSource
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if(codeSource == null) throw new BootException("No class location for " + cl)
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else codeSource.getLocation
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}
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}
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