sbt/main/PluginManagement.scala

39 lines
1.3 KiB
Scala

package sbt
import Keys.Classpath
import Project.Setting
import PluginManagement._
import java.net.{URL,URLClassLoader}
final case class PluginManagement(overrides: Set[ModuleID], applyOverrides: Set[ModuleID], loader: PluginClassLoader, initialLoader: ClassLoader)
{
def shift: PluginManagement =
PluginManagement(Set.empty, overrides, new PluginClassLoader(initialLoader), initialLoader)
def addOverrides(os: Set[ModuleID]): PluginManagement =
copy(overrides = overrides ++ os)
def addOverrides(cp: Classpath): PluginManagement =
addOverrides(extractOverrides(cp))
def inject: Seq[Setting[_]] = Seq(
Keys.dependencyOverrides ++= overrides
)
}
object PluginManagement
{
def apply(initialLoader: ClassLoader): PluginManagement =
PluginManagement(Set.empty, Set.empty, new PluginClassLoader(initialLoader), initialLoader)
def extractOverrides(classpath: Classpath): Set[ModuleID] =
classpath flatMap { _.metadata get Keys.moduleID.key map keepOverrideInfo } toSet;
def keepOverrideInfo(m: ModuleID): ModuleID =
ModuleID(m.organization, m.name, m.revision, crossVersion = m.crossVersion)
final class PluginClassLoader(p: ClassLoader) extends URLClassLoader(Array(), p) {
def add(urls: Seq[URL]): Unit = synchronized { urls foreach addURL }
}
}