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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| package dotty.tools.sbtplugin | ||
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| import sbt.* | ||
| import sbt.Keys.* | ||
| import scala.jdk.CollectionConverters.* | ||
| import java.nio.file.Files | ||
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| object ScalaLibraryPlugin extends AutoPlugin { | ||
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| override def trigger = noTrigger | ||
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| val fetchScala2ClassFiles = taskKey[(Set[File], File)]("Fetch the files to use that were compiled with Scala 2") | ||
| //val scala2LibraryVersion = settingKey[String]("Version of the Scala 2 Standard Library") | ||
|
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| override def projectSettings = Seq ( | ||
| fetchScala2ClassFiles := { | ||
| val stream = streams.value | ||
| val cache = stream.cacheDirectory | ||
| val target = cache / "scala-library-classes" | ||
| val report = update.value | ||
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| val scalaLibraryBinaryJar = report.select( | ||
| configuration = configurationFilter(), | ||
| module = (_: ModuleID).name == "scala-library", | ||
| artifact = artifactFilter(`type` = "jar")).headOption.getOrElse { | ||
| sys.error(s"Could not fetch scala-library binary JAR") | ||
| } | ||
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| if (!target.exists()) { | ||
| IO.createDirectory(target) | ||
| } | ||
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| (FileFunction.cached(cache / "fetch-scala-library-classes", FilesInfo.lastModified, FilesInfo.exists) { _ => | ||
| stream.log.info(s"Unpacking scala-library binaries to persistent directory: ${target.getAbsolutePath}") | ||
| IO.unzip(scalaLibraryBinaryJar, target) | ||
| (target ** "*.class").get.toSet | ||
| } (Set(scalaLibraryBinaryJar)), target) | ||
|
|
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| }, | ||
| (Compile / compile) := { | ||
| val stream = streams.value | ||
| val target = (Compile / classDirectory).value | ||
| val (files, reference) = fetchScala2ClassFiles.value; | ||
| val analysis = (Compile / compile).value | ||
| stream.log.info(s"Copying files from Scala 2 Standard Library to $target") | ||
| for (file <- files; id <- file.relativeTo(reference).map(_.toString())) { | ||
| if (filesToCopy(id)) { | ||
| stream.log.debug(s"Copying file '${id}' to ${target / id}") | ||
| IO.copyFile(file, target / id) | ||
| } | ||
| } | ||
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| val overwrittenBinaries = Files.walk((Compile / classDirectory).value.toPath()) | ||
| .iterator() | ||
| .asScala | ||
| .map(_.toFile) | ||
| .map(_.relativeTo((Compile / classDirectory).value).get) | ||
| .toSet | ||
| val diff = files.filterNot(_.relativeTo(reference).exists(overwrittenBinaries)) | ||
|
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| IO.copy(diff.map { file => | ||
| file -> (Compile / classDirectory).value / file.relativeTo(reference).get.getPath | ||
| }) | ||
|
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| analysis | ||
| } | ||
| ) | ||
|
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| private lazy val filesToCopy = Set( | ||
| "scala/Tuple1.class", | ||
| "scala/Tuple2.class", | ||
| "scala/collection/DoubleStepper.class", | ||
| "scala/collection/IntStepper.class", | ||
| "scala/collection/LongStepper.class", | ||
| "scala/collection/immutable/DoubleVectorStepper.class", | ||
| "scala/collection/immutable/IntVectorStepper.class", | ||
| "scala/collection/immutable/LongVectorStepper.class", | ||
| "scala/jdk/DoubleAccumulator.class", | ||
| "scala/jdk/IntAccumulator.class", | ||
| "scala/jdk/LongAccumulator.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaDoubleBinaryOperator.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaBooleanSupplier.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaDoubleConsumer.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaDoublePredicate.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaDoubleSupplier.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaDoubleToIntFunction.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaDoubleToLongFunction.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaIntBinaryOperator.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaDoubleUnaryOperator.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaIntPredicate.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaIntConsumer.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaIntSupplier.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaIntToDoubleFunction.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaIntToLongFunction.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaIntUnaryOperator.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaLongBinaryOperator.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaLongConsumer.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaLongPredicate.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaLongSupplier.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaLongToDoubleFunction.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaLongToIntFunction.class", | ||
| "scala/jdk/FunctionWrappers$FromJavaLongUnaryOperator.class", | ||
| "scala/collection/ArrayOps$ReverseIterator.class", | ||
| "scala/runtime/NonLocalReturnControl.class", | ||
| ) | ||
|
|
||
| } |
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