sbt/plugin/src/main/scala-2.10/coursier/ResolutionError.scala

112 lines
3.2 KiB
Scala

package coursier
import scala.collection.mutable.ArrayBuffer
sealed abstract class ResolutionError extends Product with Serializable {
def cause: Option[Throwable] = this match {
case ResolutionError.MaximumIterationsReached => None
case ResolutionError.UnknownException(ex) => Some(ex)
case ResolutionError.UnknownDownloadException(ex) => Some(ex)
case _: ResolutionError.Conflicts => None
case _: ResolutionError.MetadataDownloadErrors => None
case _: ResolutionError.DownloadErrors => None
}
def message: String = this match {
case ResolutionError.MaximumIterationsReached =>
"Maximum number of iteration of dependency resolution reached"
case ResolutionError.UnknownException(ex) =>
"Exception during resolution"
case ResolutionError.UnknownDownloadException(ex) =>
"Error while downloading / verifying artifacts"
case ResolutionError.Conflicts(description) =>
description
case err: ResolutionError.MetadataDownloadErrors =>
err.description()
case err: ResolutionError.DownloadErrors =>
err.description(verbose = true)
}
def exception(): ResolutionException =
new ResolutionException(this)
def throwException(): Nothing =
throw exception()
}
object ResolutionError {
case object MaximumIterationsReached extends ResolutionError
case class UnknownException(ex: Throwable) extends ResolutionError
case class UnknownDownloadException(ex: Throwable) extends ResolutionError
case class Conflicts(description: String) extends ResolutionError
case class MetadataDownloadErrors(errors: Seq[(Dependency, Seq[String])]) extends ResolutionError {
def description(): String = {
def grouped(errs: Seq[String]) =
errs
.map { s =>
val idx = s.indexOf(": ")
if (idx >= 0)
(s.take(idx), s.drop(idx + ": ".length))
else
("", s)
}
.groupBy(_._1)
.mapValues(_.map(_._2))
.toVector
.sortBy(_._1)
val lines = new ArrayBuffer[String]
lines += s"Encountered ${errors.length} error(s) in dependency resolution:"
for ((dep, errs) <- errors) {
lines += s" ${dep.module}:${dep.version}:"
for ((type0, errs0) <- grouped(errs))
if (type0.isEmpty)
for (err <- errs0)
lines += s" $err"
else
errs0 match {
case Seq(err) =>
lines += s" $type0: $err"
case _ =>
lines += s" $type0:"
for (err <- errs0)
lines += s" $err"
}
}
lines.mkString("\n")
}
}
case class DownloadErrors(errors: Seq[FileError]) extends ResolutionError {
def description(verbose: Boolean): String = {
val groupedArtifactErrors = errors
.groupBy(_.`type`)
.mapValues(_.map(_.message).sorted)
.toVector
.sortBy(_._1)
val b = new StringBuilder
for ((type0, errors) <- groupedArtifactErrors) {
b ++= s"${errors.size} $type0"
if (verbose)
for (err <- errors)
b ++= " " + err
}
b.result()
}
}
}