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BootstrapApiMappings.scala
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BootstrapApiMappings.scala
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package com.thoughtworks.sbtApiMappings
import java.io.File
import java.lang.management.ManagementFactory
import java.net.URL
import sbt._
import sbt.Keys._
import sbt.plugins.JvmPlugin
/** API mappings for classpath used by the bootstrap class loader.
* @author
* 杨博 (Yang Bo)
*/
object BootstrapApiMappings extends AutoPlugin {
override def requires: Plugins = JvmPlugin
override def trigger = allRequirements
object autoImport {
val bootstrapJavadocURL =
SettingKey[URL](
"bootstrap-javadoc-url",
"Javadoc URL for classpath used by bootstrap class loader"
)
}
import autoImport._
private[sbtApiMappings] def defaultBootstrapJavadocUrl = {
val javaVersion = sys.props("java.specification.version") match {
case VersionNumber(Seq(1, javaVersion, _*), _, _) =>
javaVersion // 1.6-1.8
case VersionNumber(Seq(javaVersion, _*), _, _) => javaVersion // 9+
case _ => 8
}
if (javaVersion >= 11) {
url(
s"https://docs.oracle.com/en/java/javase/${javaVersion}/docs/api/java.base/"
)
} else {
url(s"https://docs.oracle.com/javase/${javaVersion}/docs/api/")
}
}
override def globalSettings: Seq[Def.Setting[_]] = Seq(
bootstrapJavadocURL := defaultBootstrapJavadocUrl
)
override def projectSettings = Seq(Compile, Test).flatMap { config =>
inConfig(config) {
inTask(doc) {
Seq(
apiMappings ++= {
val url = bootstrapJavadocURL.value
val log = streams.value.log
if (!ManagementFactory.getRuntimeMXBean.isBootClassPathSupported) {
// Copied from scala-js/project/Build.scala for Java 9 or later
Map(file("/modules/java.base") -> url)
} else {
ManagementFactory.getRuntimeMXBean.getBootClassPath
.split(File.pathSeparatorChar)
.map { jar =>
new File(jar) -> url
}(collection.breakOut(Map.canBuildFrom))
}
}
)
}
}
}
}