mirror of https://github.com/sbt/sbt.git
76 lines
2.2 KiB
Scala
76 lines
2.2 KiB
Scala
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/* sbt -- Simple Build Tool
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* Copyright 2008, 2009 Mark Harrah
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*/
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package xsbt
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object ConsoleLogger
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{
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private val formatEnabled = ansiSupported && !formatExplicitlyDisabled
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private[this] def formatExplicitlyDisabled = java.lang.Boolean.getBoolean("sbt.log.noformat")
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private[this] def ansiSupported =
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try { jline.Terminal.getTerminal.isANSISupported }
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catch { case e: Exception => !isWindows }
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private[this] def os = System.getProperty("os.name")
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private[this] def isWindows = os.toLowerCase.indexOf("windows") >= 0
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}
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/** A logger that logs to the console. On supported systems, the level labels are
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* colored. */
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class ConsoleLogger extends BasicLogger
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{
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import ConsoleLogger.formatEnabled
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def messageColor(level: Level.Value) = Console.RESET
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def labelColor(level: Level.Value) =
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level match
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{
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case Level.Error => Console.RED
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case Level.Warn => Console.YELLOW
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case _ => Console.RESET
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}
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def successLabelColor = Console.GREEN
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def successMessageColor = Console.RESET
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override def success(message: => String)
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{
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if(atLevel(Level.Info))
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log(successLabelColor, Level.SuccessLabel, successMessageColor, message)
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}
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def trace(t: => Throwable): Unit =
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System.out.synchronized
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{
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if(traceEnabled)
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t.printStackTrace
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}
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def log(level: Level.Value, message: => String)
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{
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if(atLevel(level))
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log(labelColor(level), level.toString, messageColor(level), message)
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}
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private def setColor(color: String)
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{
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if(formatEnabled)
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System.out.synchronized { System.out.print(color) }
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}
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private def log(labelColor: String, label: String, messageColor: String, message: String): Unit =
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System.out.synchronized
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{
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for(line <- message.split("""\n"""))
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{
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setColor(Console.RESET)
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System.out.print('[')
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setColor(labelColor)
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System.out.print(label)
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setColor(Console.RESET)
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System.out.print("] ")
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setColor(messageColor)
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System.out.print(line)
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setColor(Console.RESET)
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System.out.println()
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}
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}
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def logAll(events: Seq[LogEvent]) = System.out.synchronized { events.foreach(log) }
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def control(event: ControlEvent.Value, message: => String)
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{ log(labelColor(Level.Info), Level.Info.toString, Console.BLUE, message) }
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}
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