package cbt
import java.nio.file._
import java.nio.charset.StandardCharsets
import java.net._
import java.io._
import scala.collection.immutable.Seq
import scala.xml._
import scala.concurrent._
import scala.concurrent.duration._
abstract class DependencyImplementation extends Dependency{
implicit protected def logger: Logger
protected def lib = new Stage1Lib(logger)
def needsUpdate: Boolean
//def cacheClassLoader: Boolean = false
private[cbt] def targetClasspath: ClassPath
def dependencyClasspathArray: Array[File] = dependencyClasspath.files.toArray
def exportedClasspathArray: Array[File] = exportedClasspath.files.toArray
def exportedClasspath: ClassPath
def dependenciesArray: Array[Dependency] = dependencies.to
def needsUpdateCompat: java.lang.Boolean = needsUpdate
/*
//private type BuildCache = KeyLockedLazyCache[Dependency, Future[ClassPath]]
def exportClasspathConcurrently: ClassPath = {
// FIXME: this should separate a blocking and a non-blocking EC
import scala.concurrent.ExecutionContext.Implicits.global
Await.result(
exportClasspathConcurrently(
transitiveDependencies
.collect{ case d: ArtifactInfo => d }
.groupBy( d => (d.groupId,d.artifactId) )
.mapValues( _.head )
//, new BuildCache
), // FIXME
Duration.Inf
)
}
def concurrencyEnabled = false
/**
The implementation of this method is untested and likely buggy
at this stage.
*/
def exportClasspathConcurrently(
latest: Map[(String, String),Dependency with ArtifactInfo]//, cache: BuildCache
)( implicit ec: ExecutionContext ): Future[AnyRef] = {
Future.sequence( // trigger compilation / download of all dependencies first
this.dependencies.map{
d =>
// find out latest version of the required dependency
val l = d match {
case m: BoundMavenDependency => latest( (m.groupId,m.artifactId) )
case _ => d
}
// // trigger compilation if not already triggered
// cache.get( l, l.exportClasspathConcurrently( latest, cache ) )
l.exportClasspathConcurrently( latest ) // FIXME
}
).map(
// merge dependency classpaths into one
ClassPath.flatten(_)
).map(
_ =>
// now that all dependencies are done, compile the code of this
exportedClasspath
)
}
*/
def classLoader( cache: ClassLoaderCache ): ClassLoader = {
/*
if( concurrencyEnabled ){
// trigger concurrent building / downloading dependencies
exportClasspathConcurrently
}
*/
lib.classLoaderRecursion(
this,
(this +: transitiveDependencies).collect{
case d: ArtifactInfo => d
}.groupBy(
d => (d.groupId,d.artifactId)
).mapValues(_.head),
cache // FIXME
)
}
// FIXME: these probably need to update outdated as well
def classpath : ClassPath = exportedClasspath ++ dependencyClasspath
def dependencyClasspath : ClassPath = ClassPath(
transitiveDependencies
.flatMap(_.exportedClasspath.files)
.distinct // <- currently needed here to handle diamond dependencies on builds (duplicate in classpath)
)
def dependencies: Seq[Dependency]
private object transitiveDependenciesCache extends Cache[Seq[Dependency]]
/** return dependencies in order of linearized dependence. this is a bit tricky. */
def transitiveDependencies: Seq[Dependency] = transitiveDependenciesCache{
lib.transitiveDependencies(this)
}
override def show: String = this.getClass.getSimpleName
// ========== debug ==========
def dependencyTree: String = lib.dependencyTreeRecursion(this)
}
// TODO: all this hard codes the scala version, needs more flexibility
class ScalaCompilerDependency(cbtHasChanged: Boolean, mavenCache: File, version: String)(implicit logger: Logger) extends BoundMavenDependency(cbtHasChanged, mavenCache, MavenDependency("org.scala-lang","scala-compiler",version, Classifier.none), Seq(mavenCentral))
class ScalaLibraryDependency (cbtHasChanged: Boolean, mavenCache: File, version: String)(implicit logger: Logger) extends BoundMavenDependency(cbtHasChanged, mavenCache, MavenDependency("org.scala-lang","scala-library",version, Classifier.none), Seq(mavenCentral))
class ScalaReflectDependency (cbtHasChanged: Boolean, mavenCache: File, version: String)(implicit logger: Logger) extends BoundMavenDependency(cbtHasChanged, mavenCache, MavenDependency("org.scala-lang","scala-reflect",version, Classifier.none), Seq(mavenCentral))
case class ScalaDependencies(cbtHasChanged: Boolean, mavenCache: File, version: String)(implicit val logger: Logger) extends DependencyImplementation{ sd =>
override final val needsUpdate = false
def targetClasspath = ClassPath(Seq())
def exportedClasspath = ClassPath(Seq())
def dependencies = Seq(
new ScalaCompilerDependency(cbtHasChanged, mavenCache, version),
new ScalaLibraryDependency(cbtHasChanged, mavenCache, version),
new ScalaReflectDependency(cbtHasChanged, mavenCache, version)
)
}
case class BinaryDependency( path: File, dependencies: Seq[Dependency] )(implicit val logger: Logger) extends DependencyImplementation{
def exportedClasspath = ClassPath(Seq(path))
override def needsUpdate = false
def targetClasspath = exportedClasspath
}
/** Allows to easily assemble a bunch of dependencies */
case class Dependencies( dependencies: Seq[Dependency] )(implicit val logger: Logger) extends DependencyImplementation{
override def needsUpdate = dependencies.exists(_.needsUpdate)
override def exportedClasspath = ClassPath(Seq())
override def targetClasspath = ClassPath(Seq())
}
object Dependencies{
def apply( dependencies: Dependency* )(implicit logger: Logger): Dependencies = Dependencies( dependencies.to )
}
case class Stage1Dependency(cbtHasChanged: Boolean, mavenCache: File, nailgunTarget: File, stage1Target: File, compatibilityTarget: File)(implicit val logger: Logger) extends DependencyImplementation{
override def needsUpdate = cbtHasChanged
override def targetClasspath = exportedClasspath
override def exportedClasspath = ClassPath( Seq(nailgunTarget, stage1Target) )
val compatibilityDependency = CompatibilityDependency(cbtHasChanged, compatibilityTarget)
override def dependencies = Seq(
compatibilityDependency
) ++
MavenResolver(cbtHasChanged,mavenCache,mavenCentral).bind(
MavenDependency("org.scala-lang","scala-library",constants.scalaVersion),
MavenDependency("org.scala-lang.modules","scala-xml_"+constants.scalaMajorVersion,constants.scalaXmlVersion)
)
}
case class CompatibilityDependency(cbtHasChanged: Boolean, compatibilityTarget: File)(implicit val logger: Logger) extends DependencyImplementation{
override def needsUpdate = cbtHasChanged
override def targetClasspath = exportedClasspath
override def exportedClasspath = ClassPath( Seq(compatibilityTarget) )
override def dependencies = Seq()
}
case class CbtDependency(cbtHasChanged: Boolean, mavenCache: File, nailgunTarget: File, stage1Target: File, stage2Target: File, compatibilityTarget: File)(implicit val logger: Logger) extends DependencyImplementation{
override def needsUpdate = cbtHasChanged
override def targetClasspath = exportedClasspath
override def exportedClasspath = ClassPath( Seq( stage2Target ) )
val stage1Dependency = Stage1Dependency(cbtHasChanged, mavenCache, nailgunTarget, stage1Target, compatibilityTarget)
override def dependencies = Seq(
stage1Dependency
) ++
MavenResolver(cbtHasChanged, mavenCache,mavenCentral).bind(
MavenDependency("net.incongru.watchservice","barbary-watchservice","1.0"),
MavenDependency("org.eclipse.jgit", "org.eclipse.jgit", "4.2.0.201601211800-r")
)
}
case class Classifier(name: Option[String])
object Classifier{
object none extends Classifier(None)
object javadoc extends Classifier(Some("javadoc"))
object sources extends Classifier(Some("sources"))
}
abstract class DependenciesProxy{
}
class BoundMavenDependencies(
cbtHasChanged: Boolean, mavenCache: File, urls: Seq[URL], mavenDependencies: Seq[MavenDependency]
)(implicit logger: Logger) extends Dependencies(
mavenDependencies.map( BoundMavenDependency(cbtHasChanged,mavenCache,_,urls) )
)
case class MavenDependency(
groupId: String, artifactId: String, version: String, classifier: Classifier = Classifier.none
){
private[cbt] def serialize = groupId ++ ":" ++ artifactId ++ ":"++ version ++ classifier.name.map(":" ++ _).getOrElse("")
}
object MavenDependency{
private[cbt] def deserialize = (_:String).split(":") match {
case col => MavenDependency( col(0), col(1), col(2), Classifier(col.lift(3)) )
}
}
// FIXME: take MavenResolver instead of mavenCache and repositories separately
case class BoundMavenDependency(
cbtHasChanged: Boolean, mavenCache: File, mavenDependency: MavenDependency, repositories: Seq[URL]
)(implicit val logger: Logger) extends DependencyImplementation with ArtifactInfo{
val MavenDependency( groupId, artifactId, version, classifier ) = mavenDependency
assert(
Option(groupId).collect{
case BoundMavenDependency.ValidIdentifier(_) =>
}.nonEmpty,
s"not a valid groupId: '$groupId'"
)
assert(
Option(artifactId).collect{
case BoundMavenDependency.ValidIdentifier(_) =>
}.nonEmpty,
s"not a valid artifactId: '$artifactId'"
)
assert(
version != "" && version != null && !version.startsWith(" ") && !version.endsWith(" "),
s"not a valid version: '$version'"
)
override def show: String = this.getClass.getSimpleName ++ "(" ++ mavenDependency.serialize ++ ")"
override def needsUpdate = false
private val groupPath = groupId.split("\\.").mkString("/")
protected[cbt] def basePath = s"/$groupPath/$artifactId/$version/$artifactId-$version" ++ classifier.name.map("-"++_).getOrElse("")
//private def coursierJarFile = userHome++"/.coursier/cache/v1/https/repo1.maven.org/maven2"++basePath++".jar"
def exportedJars = Seq( jar )
override def exportedClasspath = ClassPath( exportedJars )
override def targetClasspath = exportedClasspath
import scala.collection.JavaConversions._
private def resolve(suffix: String, hash: Option[String]): File = {
logger.resolver("Resolving "+this)
val file = mavenCache ++ basePath ++ "." ++ suffix
val urls = repositories.map(_ ++ basePath ++ "." ++ suffix)
urls.find(
lib.download(_, file, hash)
).getOrElse(
throw new Exception(s"\nCannot resolve\n$this\nCan't find any of\n"++urls.mkString("\n"))
)
file
}
private def resolveHash(suffix: String) = {
Files.readAllLines(
resolve( suffix ++ ".sha1", None ).toPath,
StandardCharsets.UTF_8
).mkString("\n").split(" ").head.trim
}
private object jarSha1Cache extends Cache[String]
def jarSha1: String = jarSha1Cache{ resolveHash("jar") }
private object pomSha1Cache extends Cache[String]
def pomSha1: String = pomSha1Cache{ resolveHash("pom") }
private object jarCache extends Cache[File]
def jar: File = jarCache{ resolve("jar", Some(jarSha1)) }
private object pomCache extends Cache[File]
def pom: File = pomCache{ resolve("pom", Some(pomSha1)) }
private def pomXml = XML.loadFile(pom.string)
// ========== pom traversal ==========
private lazy val transitivePom: Seq[BoundMavenDependency] = {
(pomXml \ "parent").collect{
case parent =>
BoundMavenDependency(
cbtHasChanged: Boolean,
mavenCache,
MavenDependency(
(parent \ "groupId").text,
(parent \ "artifactId").text,
(parent \ "version").text
),
repositories
)(logger)
}.flatMap(_.transitivePom) :+ this
}
private lazy val properties: Map[String, String] = (
transitivePom.flatMap{ d =>
val props = (d.pomXml \ "properties").flatMap(_.child).map{
tag => tag.label -> tag.text
}
logger.pom(s"Found properties in $pom: $props")
props
}
).toMap
private lazy val dependencyVersions: Map[String, (String,String)] =
transitivePom.flatMap(
p =>
(p.pomXml \ "dependencyManagement" \ "dependencies" \ "dependency").map{
xml =>
val groupId = p.lookup(xml,_ \ "groupId").get
val artifactId = p.lookup(xml,_ \ "artifactId").get
val version = p.lookup(xml,_ \ "version").get
artifactId -> (groupId, version)
}
).toMap
def dependencies: Seq[BoundMavenDependency] = {
if(classifier == Classifier.sources) Seq()
else {
lib.cacheOnDisk(
cbtHasChanged, mavenCache ++ basePath ++ ".pom.dependencies"
)( MavenDependency.deserialize )( _.serialize ){
(pomXml \ "dependencies" \ "dependency").collect{
case xml if ( (xml \ "scope").text == "" || (xml \ "scope").text == "compile" ) && (xml \ "optional").text != "true" =>
val artifactId = lookup(xml,_ \ "artifactId").get
val groupId =
lookup(xml,_ \ "groupId").getOrElse(
dependencyVersions
.get(artifactId).map(_._1)
.getOrElse(
throw new Exception(s"$artifactId not found in \n$dependencyVersions")
)
)
val version =
lookup(xml,_ \ "version").getOrElse(
dependencyVersions
.get(artifactId).map(_._2)
.getOrElse(
throw new Exception(s"$artifactId not found in \n$dependencyVersions")
)
)
val classifier = Classifier( Some( (xml \ "classifier").text ).filterNot(_ == "").filterNot(_ == null) )
MavenDependency( groupId, artifactId, version, classifier )
}.toVector
}.map(
BoundMavenDependency( cbtHasChanged, mavenCache, _, repositories )
).to
}
}
def lookup( xml: Node, accessor: Node => NodeSeq ): Option[String] = {
//println("lookup in "++pomUrl)
val Substitution = "\\$\\{([^\\}]+)\\}".r
accessor(xml).headOption.map{v =>
//println("found: "++v.text)
Substitution.replaceAllIn(
v.text,
matcher => {
val path = matcher.group(1)
properties.get(path).orElse(
transitivePom.reverse.flatMap{ d =>
Some(path.split("\\.").toList).collect{
case "project" :: path =>
path.foldLeft(d.pomXml:NodeSeq){ case (xml,tag) => xml \ tag }.text
}.filter(_ != "")
}.headOption
)
.getOrElse(
throw new Exception(s"Can't find $path in \n$properties.\n\npomParents: $transitivePom\n\n pomXml:\n$pomXml" )
)
//println("lookup "++path ++ ": "++(pomXml\path).text)
}
)
}
}
}
object BoundMavenDependency{
def ValidIdentifier = "^([A-Za-z0-9_\\-.]+)$".r // according to maven's DefaultModelValidator.java
def semanticVersionLessThan(left: Array[Either[Int,String]], right: Array[Either[Int,String]]) = {
// FIXME: this ignores ends when different size
val zipped = left zip right
val res = zipped.map {
case (Left(i),Left(j)) => i compare j
case (Right(i),Right(j)) => i compare j
case (Left(i),Right(j)) => i.toString compare j
case (Right(i),Left(j)) => i compare j.toString
}
res.find(_ != 0).map(_ < 0).getOrElse(false)
}
def toInt(str: String): Either[Int,String] = try {
Left(str.toInt)
} catch {
case e: NumberFormatException => Right(str)
}
/* this obviously should be overridable somehow */
def updateOutdated(
deps: Seq[Dependency with ArtifactInfo],
versionLessThan: (Array[Either[Int,String]], Array[Either[Int,String]]) => Boolean = semanticVersionLessThan
)(implicit logger: Logger): Seq[Dependency with ArtifactInfo] = {
val latest = deps
.groupBy( d => (d.groupId, d.artifactId) )
.mapValues(
_.groupBy(_.version) // remove duplicates
.map( _._2.head )
.toVector
.sortBy( _.version.split("\\.|\\-").map(toInt) )( Ordering.fromLessThan(versionLessThan) )
.last
)
deps.map{
d =>
val l = latest((d.groupId,d.artifactId))
if(d != l) logger.resolver("outdated: "++d.show)
l
}
}
}