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package scala.build
import aQute.bnd.osgi.Builder
import aQute.bnd.osgi.Constants._
import java.util.Properties
import java.util.jar.Attributes
import sbt._
import sbt.Keys._
import collection.JavaConverters._
import VersionUtil.versionProperties
/** OSGi packaging for the Scala build, distilled from sbt-osgi. We do not use sbt-osgi because it
* depends on a newer version of BND which gives slightly different output (probably OK to upgrade
* in the future, now that the Ant build has been removed) and does not allow a crucial bit of
* configuration that we need: Setting the classpath for BND. In sbt-osgi this is always
* `fullClasspath in Compile` whereas we want `products in Compile in packageBin`. */
object Osgi {
val bundle = TaskKey[File]("osgiBundle", "Create an OSGi bundle.")
val bundleName = SettingKey[String]("osgiBundleName", "The Bundle-Name for the manifest.")
val bundleSymbolicName = SettingKey[String]("osgiBundleSymbolicName", "The Bundle-SymbolicName for the manifest.")
val headers = SettingKey[Seq[(String, String)]]("osgiHeaders", "Headers and processing instructions for BND.")
val jarlist = SettingKey[Boolean]("osgiJarlist", "List classes in manifest.")
def settings: Seq[Setting[_]] = Seq(
bundleName := description.value,
bundleSymbolicName := organization.value + "." + name.value,
headers := {
val v = VersionUtil.versionProperties.value.osgiVersion
Seq(
"Bundle-Name" -> bundleName.value,
"Bundle-SymbolicName" -> bundleSymbolicName.value,
"ver" -> v,
"Export-Package" -> "*;version=${ver};-split-package:=merge-first",
"Import-Package" -> "scala.*;version=\"${range;[==,=+);${ver}}\",*",
"Bundle-Version" -> v,
"Bundle-RequiredExecutionEnvironment" -> "JavaSE-1.8",
"-eclipse" -> "false"
)
},
jarlist := false,
bundle := Def.task {
val cp = (products in Compile in packageBin).value
bundleTask(headers.value.toMap, jarlist.value, cp,
(artifactPath in (Compile, packageBin)).value, cp, streams.value)
}.value,
packagedArtifact in (Compile, packageBin) := (((artifact in (Compile, packageBin)).value, bundle.value)),
// Also create OSGi source bundles:
packageOptions in (Compile, packageSrc) += Package.ManifestAttributes(
"Bundle-Name" -> (description.value + " Sources"),
"Bundle-SymbolicName" -> (bundleSymbolicName.value + ".source"),
"Bundle-Version" -> versionProperties.value.osgiVersion,
"Eclipse-SourceBundle" -> (bundleSymbolicName.value + ";version=\"" + versionProperties.value.osgiVersion + "\";roots:=\".\"")
),
Keys.`package` := bundle.value
)
def bundleTask(headers: Map[String, String], jarlist: Boolean, fullClasspath: Seq[File], artifactPath: File,
resourceDirectories: Seq[File], streams: TaskStreams): File = {
val log = streams.log
val builder = new Builder
builder.setClasspath(fullClasspath.toArray)
headers foreach { case (k, v) => builder.setProperty(k, v) }
// https://github.com/scala/scala-dev/issues/254
// Must be careful not to include scala-asm.jar within scala-compiler.jar!
def resourceDirectoryRef(f: File) = (if (f.isDirectory) "" else "@") + f.getAbsolutePath
val includeRes = resourceDirectories.filter(_.exists).map(resourceDirectoryRef).mkString(",")
if(!includeRes.isEmpty) builder.setProperty(INCLUDERESOURCE, includeRes)
builder.getProperties.asScala.foreach { case (k, v) => log.debug(s"bnd: $k: $v") }
// builder.build is not thread-safe because it uses a static SimpleDateFormat. This ensures
// that all calls to builder.build are serialized.
val jar = synchronized { builder.build }
builder.getWarnings.asScala.foreach(s => log.warn(s"bnd: $s"))
builder.getErrors.asScala.foreach(s => log.error(s"bnd: $s"))
IO.createDirectory(artifactPath.getParentFile)
if (jarlist) {
val entries = jar.getManifest.getEntries
for ((name, resource) <- jar.getResources.asScala if name.endsWith(".class")) {
entries.put(name, new Attributes)
}
}
jar.write(artifactPath)
artifactPath
}
}
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