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import sbt._
import java.io.{File,FileInputStream}
import java.util.jar.Manifest
import AdditionalResources._
import FileUtilities._
object Packer {
/**
* A filter that exclude files that musn't be in a jar file.
*/
// We must exclude the manifest because we generate it automatically, and when we add multiples other jars, they could have
// also a manifest files each, resulting in conflicts for the FileUtilities.jar(..) method
def jarPattern(path:PathFinder) = path.descendentsExcept(AllPassFilter, (".*" - ".") || HiddenFileFilter || new ExactFilter("MANIFEST.MF")).get
def createJar(j:Packaging,log:Logger):Option[String]=createJar(j.packagingConfig,log,jarPattern _,true)
def createJar(j:PackagingConfiguration,log:Logger):Option[String]=createJar(j,log,jarPattern _,true)
/**
* Create a jar from the packaging trait. Is able to add directly others jars to it
*/
def createJar(j:PackagingConfiguration,log:Logger,filter:(PathFinder)=>Iterable[Path],addIncludedLibs:Boolean):Option[String] = {
def pack0(content:Iterable[Path])=jar(content.flatMap(filter(_)),j.jarDestination, j.manifest, false, log)
j.jarsToInclude match {
case Nil => pack0(j.content)
case list if addIncludedLibs => {
withTemporaryDirectory(log) { tmp: File =>
val tmpPath = Path.fromFile(tmp)
log.debug("List of jars to be added : " +list)
def unzip0(l:List[Path]):Option[String] = l match {
case x::xs => {unzip(x,tmpPath,log);unzip0(xs)} //TODO properly handle failing of unzip
case Nil => None
}
unzip0(list)
log.debug("Content of temp folder"+ tmpPath.##.**( GlobFilter("*")))
pack0(j.content ++ Set(tmpPath ##))
}
}
case _ => pack0(j.content)
}
}
}
/**
* Create the jars of pack
* @author Grégory Moix
*/
trait Packer {
self: BasicLayer =>
def libraryToCopy:List[Path] = Nil
/**
* The actual pack task.
*/
def packF= {
import Packer._
def iterate(steps:List[Step]):Option[String]= steps match{
case x::xs => x match{
case c:Packaging => {
createJar(c,log) orElse iterate(xs)
}
case _ => iterate(xs)
}
case Nil => None
}
def copy0 ={
copyFile(manifestPath,packingDestination/"META-INF"/"MANIFEST.MF",log) orElse {
copy(libraryToCopy,packingDestination , true,true,log) match {
case Right(_) => None
case Left(e) => Some(e)
}
}
}
iterate(allSteps.topologicalSort) orElse copy0
}
lazy val pack=task{packF}.dependsOn(finishLayer)
}
class PackagingConfiguration(val jarDestination:Path, val content:Iterable[Path],val manifest:Manifest,val jarsToInclude:List[Path]){
def this(jarDestination:Path,content:Iterable[Path])=this(jarDestination,content, new Manifest,Nil)
def this(jarDestination:Path,content:Iterable[Path],jarsToInclude:List[Path])=this(jarDestination,content,new Manifest, jarsToInclude)
}
trait Packaging extends Step{
def packagingConfig:PackagingConfiguration
}
trait WrapperPackaging extends Packaging {
self : WrapperStep =>
def jarContent = {
def getContent(list:List[Step],acc:List[Path]):List[Path]= list match {
case Nil => acc
case x::xs => x match {
case w:WrapperStep => getContent(xs,getContent(w.dependencies.toList,acc))
case c:CompilationStep => getContent(xs,(c.outputDirectory ##)::acc)
}
}
getContent(dependencies.toList,Nil)
}
}
/**
* This trait is here to add the possiblity to have a different packing destination that is used right after the
* compilation of the step has finished. It permits to have use libraries that are build using a plugin. (The plugin must
* be a jar in order to be recognised by the compiler.
*/
trait EarlyPackaging extends Packaging{
self:CompilationStep =>
//def earlyPackagingDestination:Path
//def earlyJarDestination = earlyPackagingDestination / jarName
def earlyPackagingConfig:PackagingConfiguration
}
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