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/* __ *\
** ________ ___ / / ___ __ ____ Scala.js CLI **
** / __/ __// _ | / / / _ | __ / // __/ (c) 2013-2014, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ |/_// /_\ \ http://scala-js.org/ **
** /____/\___/_/ |_/____/_/ | |__/ /____/ **
** |/____/ **
\* */
package scala.scalajs.cli
import scala.scalajs.ir.ScalaJSVersions
import scala.scalajs.tools.sem._
import scala.scalajs.tools.io._
import scala.scalajs.tools.logging._
import scala.scalajs.tools.classpath._
import scala.scalajs.tools.classpath.builder._
import CheckedBehavior.Compliant
import scala.scalajs.tools.optimizer.{
ScalaJSOptimizer,
ScalaJSClosureOptimizer,
ParIncOptimizer
}
import scala.collection.immutable.Seq
import java.io.File
import java.net.URI
object Scalajsld {
case class Options(
cp: Seq[File] = Seq.empty,
output: File = null,
jsoutput: Option[File] = None,
semantics: Semantics = Semantics.Defaults,
noOpt: Boolean = false,
fullOpt: Boolean = false,
prettyPrint: Boolean = false,
sourceMap: Boolean = false,
relativizeSourceMap: Option[URI] = None,
checkIR: Boolean = false,
stdLib: Option[File] = None,
logLevel: Level = Level.Info)
def main(args: Array[String]): Unit = {
val parser = new scopt.OptionParser[Options]("scalajsld") {
head("scalajsld", ScalaJSVersions.current)
arg[File]("<value> ...")
.unbounded()
.action { (x, c) => c.copy(cp = c.cp :+ x) }
.text("Entries of Scala.js classpath to link")
opt[File]('o', "output")
.valueName("<file>")
.required()
.action { (x, c) => c.copy(output = x) }
.text("Output file of linker (required)")
opt[File]("jsoutput")
.valueName("<file>")
.abbr("jo")
.action { (x, c) => c.copy(jsoutput = Some(x)) }
.text("Concatenate all JavaScript libary dependencies to this file")
opt[Unit]('f', "fastOpt")
.action { (_, c) => c.copy(noOpt = false, fullOpt = false) }
.text("Optimize code (this is the default)")
opt[Unit]('n', "noOpt")
.action { (_, c) => c.copy(noOpt = true, fullOpt = false) }
.text("Don't optimize code")
opt[Unit]('u', "fullOpt")
.action { (_, c) => c.copy(noOpt = false, fullOpt = true) }
.text("Fully optimize code (uses Google Closure Compiler)")
opt[Unit]('p', "prettyPrint")
.action { (_, c) => c.copy(prettyPrint = true) }
.text("Pretty print full opted code (meaningful with -u)")
opt[Unit]('s', "sourceMap")
.action { (_, c) => c.copy(sourceMap = true) }
.text("Produce a source map for the produced code")
opt[Unit]("compliantAsInstanceOfs")
.action { (_, c) => c.copy(semantics =
c.semantics.withAsInstanceOfs(Compliant))
}
.text("Use compliant asInstanceOfs")
opt[Unit]('c', "checkIR")
.action { (_, c) => c.copy(checkIR = true) }
.text("Check IR before optimizing")
opt[File]('r', "relativizeSourceMap")
.valueName("<path>")
.action { (x, c) => c.copy(relativizeSourceMap = Some(x.toURI)) }
.text("Relativize source map with respect to given path (meaningful with -s)")
opt[Unit]("noStdlib")
.action { (_, c) => c.copy(stdLib = None) }
.text("Don't automatcially include Scala.js standard library")
opt[File]("stdlib")
.valueName("<scala.js stdlib jar>")
.hidden()
.action { (x, c) => c.copy(stdLib = Some(x)) }
.text("Location of Scala.js standard libarary. This is set by the " +
"runner script and automatically prepended to the classpath. " +
"Use -n to not include it.")
opt[Unit]('d', "debug")
.action { (_, c) => c.copy(logLevel = Level.Debug) }
.text("Debug mode: Show full log")
opt[Unit]('q', "quiet")
.action { (_, c) => c.copy(logLevel = Level.Warn) }
.text("Only show warnings & errors")
opt[Unit]("really-quiet")
.abbr("qq")
.action { (_, c) => c.copy(logLevel = Level.Error) }
.text("Only show errors")
version("version")
.abbr("v")
.text("Show scalajsld version")
help("help")
.abbr("h")
.text("prints this usage text")
override def showUsageOnError = true
}
for (options <- parser.parse(args, Options())) {
val cpFiles = options.stdLib.toList ++ options.cp
// Load and resolve classpath
val cp = PartialClasspathBuilder.build(cpFiles).resolve()
// Write JS dependencies if requested
for (jsout <- options.jsoutput)
IO.concatFiles(WritableFileVirtualJSFile(jsout), cp.jsLibs.map(_.lib))
// Link Scala.js code
val outFile = WritableFileVirtualJSFile(options.output)
if (options.fullOpt)
fullOpt(cp, outFile, options)
else
fastOpt(cp, outFile, options)
}
}
private def fullOpt(cp: IRClasspath,
output: WritableVirtualJSFile, options: Options) = {
import ScalaJSClosureOptimizer._
val semantics = options.semantics.optimized
new ScalaJSClosureOptimizer(semantics).optimizeCP(
newScalaJSOptimizer(semantics),
Inputs(ScalaJSOptimizer.Inputs(cp)),
OutputConfig(
output = output,
wantSourceMap = options.sourceMap,
relativizeSourceMapBase = options.relativizeSourceMap,
checkIR = options.checkIR,
prettyPrint = options.prettyPrint),
newLogger(options))
}
private def fastOpt(cp: IRClasspath,
output: WritableVirtualJSFile, options: Options) = {
import ScalaJSOptimizer._
newScalaJSOptimizer(options.semantics).optimizeCP(
Inputs(cp),
OutputConfig(
output = output,
wantSourceMap = options.sourceMap,
checkIR = options.checkIR,
disableOptimizer = options.noOpt,
relativizeSourceMapBase = options.relativizeSourceMap),
newLogger(options))
}
private def newLogger(options: Options) =
new ScalaConsoleLogger(options.logLevel)
private def newScalaJSOptimizer(semantics: Semantics) =
new ScalaJSOptimizer(semantics, new ParIncOptimizer(_))
}
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