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https://github.com/enso-org/enso.git
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632a303089
Fixes #5801 to properly format Truffle log records before sending them for further processing.
349 lines
13 KiB
Scala
349 lines
13 KiB
Scala
import java.io.File
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import java.nio.file.Path
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import sbt.{Def, File, _}
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import sbt.Keys._
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import sbt.internal.util.ManagedLogger
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import sbtassembly.AssemblyKeys.assembly
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import sbtassembly.AssemblyPlugin.autoImport.assemblyOutputPath
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import scala.sys.process._
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object NativeImage {
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/** Specifies whether the build executable should include debug symbols.
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* Should be set to false for production builds. May work only on Linux.
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*/
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private val includeDebugInfo: Boolean = false
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/** Creates a task that builds a native image for the current project.
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*
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* This task must be setup in such a way that the assembly JAR is built
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* before it starts, as it uses this JAR for the build. Usually this can be
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* done by appending `.dependsOn(LocalProject("project-name") / assembly)`.
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*
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* Additional Native Image configuration can be set for each project by
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* editing configuration files in subdirectories of `META-INF/native-image`
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* of its resources directory. More information can be found at
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* [[https://github.com/oracle/graal/blob/master/substratevm/BuildConfiguration.md]].
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*
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* @param artifactName name of the artifact to create
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* @param staticOnLinux specifies whether to link statically (applies only
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* on Linux)
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* @param additionalOptions additional options for the Native Image build
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* tool
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* @param memoryLimitMegabytes a memory limit for the build tool, in
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* megabytes; it is good to set this limit to
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* make GC more aggressive thus allowing it to
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* build successfully even with limited memory
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* @param initializeAtRuntime a list of classes that should be initialized at
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* run time - useful to set exceptions if build
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* time initialization is set to default
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*/
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def buildNativeImage(
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artifactName: String,
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staticOnLinux: Boolean,
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additionalOptions: Seq[String] = Seq.empty,
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memoryLimitMegabytes: Option[Int] = Some(15608),
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initializeAtRuntime: Seq[String] = Seq.empty,
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mainClass: Option[String] = None,
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cp: Option[String] = None
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): Def.Initialize[Task[Unit]] = Def
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.task {
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val log = state.value.log
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val javaHome = System.getProperty("java.home")
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val subProjectRoot = baseDirectory.value
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val nativeImagePath =
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if (Platform.isWindows)
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s"$javaHome\\bin\\native-image.cmd"
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else s"$javaHome/bin/native-image"
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val pathToJAR =
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(assembly / assemblyOutputPath).value.toPath.toAbsolutePath.normalize
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if (!file(nativeImagePath).exists()) {
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log.error("Native Image component not found in the JVM distribution.")
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log.error(
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"You can install Native Image with `gu install native-image`."
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)
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throw new RuntimeException(
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"Native Image build failed, " +
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"because Native Image component was not found."
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)
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}
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val debugParameters =
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if (includeDebugInfo) Seq("-H:GenerateDebugInfo=1") else Seq()
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val (staticParameters, pathExts) =
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if (staticOnLinux && Platform.isLinux) {
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// Note [Static Build On Linux]
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val buildCache =
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subProjectRoot / "build-cache"
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val path = ensureMuslIsInstalled(buildCache, log)
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(Seq("--static", "--libc=musl"), Seq(path.toString))
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} else (Seq(), Seq())
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val configLocation =
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subProjectRoot / "native-image-config"
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val configs =
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if (configLocation.exists()) {
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val path = configLocation.toPath.toAbsolutePath
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log.debug(s"Picking up Native Image configuration from `$path`.")
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Seq(s"-H:ConfigurationFileDirectories=$path")
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} else {
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log.debug(
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"No Native Image configuration found, proceeding without it."
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)
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Seq()
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}
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val quickBuildOption =
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if (BuildInfo.isReleaseMode) Seq() else Seq("-Ob")
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val memoryLimitOptions =
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memoryLimitMegabytes.map(megs => s"-J-Xmx${megs}M").toSeq
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val initializeAtRuntimeOptions =
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if (initializeAtRuntime.isEmpty) Seq()
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else {
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val classes = initializeAtRuntime.mkString(",")
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Seq(s"--initialize-at-run-time=$classes")
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}
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var cmd =
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Seq(nativeImagePath) ++
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quickBuildOption ++
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debugParameters ++ staticParameters ++ configs ++
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Seq("--no-fallback", "--no-server") ++
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Seq("--initialize-at-build-time=") ++
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initializeAtRuntimeOptions ++
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memoryLimitOptions ++
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additionalOptions;
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if (mainClass.isEmpty) {
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cmd = cmd ++
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Seq("-jar", pathToJAR.toString) ++
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Seq(artifactName)
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} else {
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val cpf = new File(cp.get).getAbsoluteFile()
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if (!cpf.exists()) throw new IllegalStateException("Cannot find " + cpf)
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val joinCp = pathToJAR.toString + File.pathSeparator + cpf
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System.out.println("Class-path: " + joinCp);
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cmd = cmd ++
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Seq("-cp", joinCp) ++
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Seq(mainClass.get) ++
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Seq(artifactName)
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}
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val pathParts = pathExts ++ Option(System.getenv("PATH")).toSeq
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val newPath = pathParts.mkString(File.pathSeparator)
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log.debug(s"""PATH="$newPath" ${cmd.mkString(" ")}""")
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val process =
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Process(cmd, None, "PATH" -> newPath)
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if (process.! != 0) {
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log.error("Native Image build failed.")
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throw new RuntimeException("Native Image build failed")
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}
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log.info("Native Image build successful.")
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}
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.dependsOn(Compile / compile)
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/** Creates a task which watches for changes of any compiled files or
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* dependencies and triggers a rebuild if and only if there are any changes.
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*
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* @param actualBuild reference to the task doing the actual Native Image
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* build, usually one returned by [[buildNativeImage]]
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* @param artifactName name of the artifact that is expected to be created
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* by the native image build
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* @return
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*/
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def incrementalNativeImageBuild(
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actualBuild: TaskKey[Unit],
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artifactName: String
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): Def.Initialize[Task[Unit]] =
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Def.taskDyn {
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def rebuild(reason: String) = {
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streams.value.log.info(
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s"$reason, forcing a rebuild."
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)
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val artifact = artifactFile(artifactName)
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if (artifact.exists()) {
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artifact.delete()
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}
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Def.task {
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actualBuild.value
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}
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}
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val classpath = (Compile / fullClasspath).value
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val filesSet = classpath.flatMap(f => f.data.allPaths.get()).toSet
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val store =
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streams.value.cacheStoreFactory.make("incremental_native_image")
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Tracked.diffInputs(store, FileInfo.hash)(filesSet) {
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sourcesDiff: ChangeReport[File] =>
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if (sourcesDiff.modified.nonEmpty)
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rebuild("Native Image is not up to date")
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else if (!artifactFile(artifactName).exists())
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rebuild("Native Image does not exist")
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else
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Def.task {
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streams.value.log.info(
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s"No source changes, $artifactName Native Image is up to date."
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)
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}
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}
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}
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/** [[File]] representing the artifact called `name` built with the Native
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* Image.
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*/
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def artifactFile(name: String): File =
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if (Platform.isWindows) file(name + ".exe")
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else file(name)
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private val muslBundleUrl =
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"https://github.com/gradinac/musl-bundle-example/releases/download/" +
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"v1.0/musl.tar.gz"
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/** Ensures that the `musl` bundle is installed.
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*
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* Checks for existence of its directory and if it does not exist, downloads
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* and extracts the bundle. After extracting it does the required
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* initialization (renaming paths to be absolute and creating a shell script
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* called `x86_64-linux-musl-gcc`).
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*
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* `musl` is needed for static builds on Linux.
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*
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* @param buildCache build-cache directory for the current project
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* @param log a logger instance
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* @return path to the `musl` bundle binary directory which should be added
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* to PATH of the launched native-image
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*/
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private def ensureMuslIsInstalled(
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buildCache: File,
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log: ManagedLogger
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): Path = {
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val muslRoot = buildCache / "musl-1.2.0"
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val bundleLocation = muslRoot / "bundle"
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val binaryLocation = bundleLocation / "bin"
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val gccLocation = binaryLocation / "x86_64-linux-musl-gcc"
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def isMuslInstalled =
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gccLocation.exists() && gccLocation.isOwnerExecutable
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if (!isMuslInstalled) {
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log.info(
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"`musl` is required for a static build, but it is not installed for " +
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"this subproject."
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)
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try {
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log.info("A `musl` bundle will be downloaded.")
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buildCache.mkdirs()
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val bundle = buildCache / "musl-bundle.tar.gz"
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val downloadExitCode = (url(muslBundleUrl) #> bundle).!
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if (downloadExitCode != 0) {
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log.error("Cannot download `musl` bundle.")
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throw new RuntimeException(s"Cannot download `$muslBundleUrl`.")
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}
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muslRoot.mkdirs()
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val tarExitCode = Seq(
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"tar",
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"xf",
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bundle.toPath.toAbsolutePath.toString,
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"-C",
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muslRoot.toPath.toAbsolutePath.toString
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).!
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if (tarExitCode != 0) {
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log.error(
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"An error occurred when extracting the `musl` library bundle."
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)
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throw new RuntimeException(s"Cannot extract $bundle.")
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}
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replacePathsInSpecs(
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bundleLocation / "lib" / "musl-gcc.specs",
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bundleLocation
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)
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createGCCWrapper(bundleLocation)
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log.info("Installed `musl`.")
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} catch {
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case e: Exception =>
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throw new RuntimeException(
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"`musl` installation failed. Cannot proceed with a static " +
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"Native Image build.",
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e
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)
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}
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}
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binaryLocation.toPath.toAbsolutePath.normalize
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}
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/** Replaces paths in `musl-gcc.specs` with absolute paths to the bundle.
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*
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* The paths in `musl-gcc.specs` start with `/build/bundle` which is not a
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* valid path by default. Instead, these prefixes are replaced with an
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* absolute path to the bundle.
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*
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* @param specs reference to `musl-gcc.specs` file
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* @param bundleLocation location of the bundle root
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*/
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private def replacePathsInSpecs(specs: File, bundleLocation: File): Unit = {
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val content = IO.read(specs)
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val bundlePath = bundleLocation.toPath.toAbsolutePath.normalize.toString
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val replaced = content.replace("/build/bundle", bundlePath)
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IO.write(specs, replaced)
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}
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/** Creates a simple shell script called `musl-gcc` which calls the original
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* `gcc` and ensures the bundle's configuration (`musl-gcc.specs`) is loaded.
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*/
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private def createGCCWrapper(bundleLocation: File): Unit = {
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val bundlePath = bundleLocation.toPath.toAbsolutePath.normalize.toString
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val content =
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s"""#!/bin/sh
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|exec "$${REALGCC:-gcc}" "$$@" -specs "$bundlePath/lib/musl-gcc.specs"
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|""".stripMargin
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val wrapper = bundleLocation / "bin" / "x86_64-linux-musl-gcc"
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IO.write(wrapper, content)
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wrapper.setExecutable(true)
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}
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}
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/* Note [Static Build On Linux]
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* The default `glibc` contains a bug that would cause crashes when downloading
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* files form the internet, which is a crucial Launcher functionality. Instead,
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* `musl` is suggested by Graal as an alternative libc. The sbt task
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* automatically downloads a bundle containing all requirements for a static
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* build with `musl`.
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*
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* The `musl` bundle that we use is not guaranteed to be maintained, so if in
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* the future a new version of `musl` comes out and we need to upgrade, we may
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* need to create our own infrastructure (a repository with CI jobs for creating
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* such bundles). It is especially important to note that the libstdc++ that is
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* included in this bundle should also be built using `musl` as otherwise linker
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* errors may arise.
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*
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* Currently, to use `musl`, the `--libc=musl` option has to be added to the
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* build and `x86_64-linux-musl-gcc` must be available in the system PATH for the
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* native-image. In the future it is possible that a different option will be
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* used or that the bundle will not be required anymore if it became
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* prepackaged. This task may thus need an update when moving to a newer version
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* of Graal.
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*
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* Currently to make the bundle work correctly with GraalVM 20.2, a shell script
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* called `x86_64-linux-musl-gcc` which loads the bundle's configuration is created by the
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* task and the paths starting with `/build/bundle` in `musl-gcc.specs` are
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* replaced with absolute paths to the bundle location.
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*/
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