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build.sbt
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build.sbt
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/*
* The new, sbt-based build definition for Scala.
*
* What you see below is very much work-in-progress. The following features are implemented:
* - Compiling all classes for the compiler and library ("compile" in the respective subprojects)
* - Running JUnit ("junit/test"), ScalaCheck ("scalacheck/test"), and partest ("test/IntegrationTest/test") tests
* - Creating build/quick with all compiled classes and launcher scripts ("dist/mkQuick")
* - Creating build/pack with all JARs and launcher scripts ("dist/mkPack")
* - Building all scaladoc sets ("doc")
* - Publishing (standard sbt tasks like "publish" and "publishLocal")
*
* You'll notice that this build definition is much more complicated than your typical sbt build.
* The main reason is that we are not benefiting from sbt's conventions when it comes project
* layout. For that reason we have to configure a lot more explicitly. I've tried to explain in
* comments the less obvious settings.
*
* This nicely leads me to explain the goal and non-goals of this build definition. Goals are:
*
* - to be easy to tweak it in case a bug or small inconsistency is found
* - to be super explicit about any departure from standard sbt settings
* - to be readable and not necessarily succinct
* - to provide the nicest development experience for people hacking on Scala
* - originally, to mimic Ant's behavior as closely as possible, so the
* sbt and Ant builds could be maintained in parallel. the Ant build
* has now been removed, so we are now free to depart from that history.
*
* Non-goals are:
*
* - to have the shortest sbt build definition possible
* - to remove irregularities from our build process right away
* (but let's keep making gradual progress on this)
* - to modularize the Scala compiler or library further
*/
import scala.build._, VersionUtil._
// Non-Scala dependencies:
val junitDep = "junit" % "junit" % "4.13.2"
val junitInterfaceDep = "com.github.sbt" % "junit-interface" % "0.13.3" % Test
val scalacheckDep = "org.scalacheck" %% "scalacheck" % "1.17.0" % Test
val jolDep = "org.openjdk.jol" % "jol-core" % "0.16"
val asmDep = "org.scala-lang.modules" % "scala-asm" % versionProps("scala-asm.version")
val jlineDep = "org.jline" % "jline" % versionProps("jline.version")
val jnaDep = "net.java.dev.jna" % "jna" % versionProps("jna.version")
val jlineDeps = Seq(jlineDep, jnaDep)
val testInterfaceDep = "org.scala-sbt" % "test-interface" % "1.0"
val diffUtilsDep = "io.github.java-diff-utils" % "java-diff-utils" % "4.12"
val compilerInterfaceDep = "org.scala-sbt" % "compiler-interface" % "1.9.6"
val projectFolder = settingKey[String]("subfolder in src when using configureAsSubproject, else the project name")
// `set Global / fatalWarnings := true` to enable -Werror for the certain modules
// currently, many modules cannot support -Werror; ideally this setting will eventually
// enable -Werror for all modules
val fatalWarnings = settingKey[Boolean]("whether or not warnings should be fatal in the build")
// enable fatal warnings automatically on CI
Global / fatalWarnings := insideCI.value
Global / credentials ++= {
val file = Path.userHome / ".credentials"
if (file.exists && !file.isDirectory) List(Credentials(file))
else Nil
}
lazy val publishSettings : Seq[Setting[_]] = Seq(
// Add a "default" Ivy configuration because sbt expects the Scala distribution to have one:
ivyConfigurations += Configuration.of("Default", "default", "Default", true, Vector(Configurations.Runtime), true),
publishMavenStyle := true
)
// Set the version number: We use the two settings `baseVersion` and `baseVersionSuffix` to compute all versions
// (canonical, Maven, OSGi). See VersionUtil.versionPropertiesImpl for details. The standard sbt `version` setting
// should not be set directly. It is the same as the Maven version and derived automatically from `baseVersion` and
// `baseVersionSuffix`.
globalVersionSettings
Global / baseVersion := "2.13.15"
Global / baseVersionSuffix := "SNAPSHOT"
ThisBuild / organization := "org.scala-lang"
ThisBuild / homepage := Some(url("https://www.scala-lang.org"))
ThisBuild / startYear := Some(2002)
ThisBuild / licenses += (("Apache-2.0", url("https://www.apache.org/licenses/LICENSE-2.0")))
ThisBuild / headerLicense := Some(HeaderLicense.Custom(
s"""Scala (${(ThisBuild/homepage).value.get})
|
|Copyright EPFL and Lightbend, Inc.
|
|Licensed under Apache License 2.0
|(http://www.apache.org/licenses/LICENSE-2.0).
|
|See the NOTICE file distributed with this work for
|additional information regarding copyright ownership.
|""".stripMargin
))
// Save MiMa logs
SavedLogs.settings
Global / scalaVersion := {
if (DottySupport.compileWithDotty)
DottySupport.dottyVersion
else
versionProps("starr.version")
}
lazy val instanceSettings = Seq[Setting[_]](
// we don't cross build Scala itself
crossPaths := false,
// do not add Scala library jar as a dependency automatically
autoScalaLibrary := false,
// Avoid circular dependencies for scalaInstance (see https://github.com/sbt/sbt/issues/1872)
managedScalaInstance := false,
scalaInstance := {
val s = (bootstrap / scalaInstance).value
// sbt claims that s.isManagedVersion is false even though s was resolved by Ivy
// We create a managed copy to prevent sbt from putting it on the classpath where we don't want it
if(s.isManagedVersion) s else {
import sbt.internal.inc.ScalaInstance
val s2 = new ScalaInstance(s.version, s.loader, s.loaderCompilerOnly, s.loaderLibraryOnly, s.libraryJars, s.compilerJars, s.allJars, Some(s.actualVersion))
assert(s2.isManagedVersion)
s2
}
},
// sbt endeavours to align both scalaOrganization and scalaVersion
// in the Scala artefacts, for example scala-library and scala-compiler.
// This doesn't work in the scala/scala build because the version of scala-library and the scalaVersion of
// scala-library are correct to be different. So disable overriding.
scalaModuleInfo ~= (_ map (_ withOverrideScalaVersion false)),
Quiet.silenceScalaBinaryVersionWarning
)
lazy val commonSettings = instanceSettings ++ clearSourceAndResourceDirectories ++ publishSettings ++ Seq[Setting[_]](
// we always assume that Java classes are standalone and do not have any dependency
// on Scala classes
compileOrder := CompileOrder.JavaThenScala,
projectFolder := thisProject.value.id, // overridden in configureAsSubproject
Compile / javacOptions ++= Seq("-g", "-source", "1.8", "-target", "1.8", "-Xlint:unchecked"),
Compile / javacOptions ++= (
if (scala.util.Properties.isJavaAtLeast("20"))
Seq("-Xlint:-options") // allow `-source 1.8` and `-target 1.8`
else
Seq()),
Compile / unmanagedJars := Seq.empty, // no JARs in version control!
Compile / sourceDirectory := baseDirectory.value,
Compile / unmanagedSourceDirectories := List(baseDirectory.value),
Compile / unmanagedResourceDirectories += (ThisBuild / baseDirectory).value / "src" / projectFolder.value,
sourcesInBase := false,
Compile / scalaSource := (Compile / sourceDirectory).value,
// for some reason sbt 1.4 issues unused-settings warnings for this, it seems to me incorrectly
Global / excludeLintKeys ++= Set(scalaSource),
// each subproject has to ask specifically for files they want to include
Compile / unmanagedResources / includeFilter := NothingFilter,
target := (ThisBuild / target).value / projectFolder.value,
Compile / classDirectory := buildDirectory.value / "quick/classes" / projectFolder.value,
Compile / doc / target := buildDirectory.value / "scaladoc" / projectFolder.value,
// given that classDirectory and doc target are overridden to be _outside_ of target directory, we have
// to make sure they are being cleaned properly
cleanFiles += (Compile / classDirectory).value,
cleanFiles += (Compile / doc / target).value,
run / fork := true,
run / connectInput := true,
Compile / scalacOptions ++= Seq("-feature", "-Xlint",
//"-Xmaxerrs", "5", "-Xmaxwarns", "5", // uncomment for ease of development while breaking things
// work around https://github.com/scala/bug/issues/11534
"-Wconf:cat=unchecked&msg=The outer reference in this type test cannot be checked at run time.:s",
// optimizer warnings at INFO since `-Werror` may be turned on.
// optimizer runs in CI and release builds, though not in local development.
"-Wconf:cat=optimizer:is",
// we use @nowarn for methods that are deprecated in JDK > 8, but CI/release is under JDK 8
"-Wconf:cat=unused-nowarn:s",
//"-Wunnamed-boolean-literal-strict",
),
Compile / doc / scalacOptions ++= Seq(
"-doc-footer", "epfl",
"-diagrams",
"-implicits",
"-groups",
"-doc-version", versionProperties.value.canonicalVersion,
"-doc-title", description.value,
"-sourcepath", (ThisBuild / baseDirectory).value.toString,
"-doc-source-url", s"https://github.com/scala/scala/blob/${versionProperties.value.githubTree}/€{FILE_PATH_EXT}#L€{FILE_LINE}"
),
//maxErrors := 10,
setIncOptions,
// http://stackoverflow.com/questions/16934488
apiMappings ++= {
Option(System.getProperty("sun.boot.class.path")).flatMap { classPath =>
classPath.split(java.io.File.pathSeparator).find(_.endsWith(java.io.File.separator + "rt.jar"))
}.map { jarPath =>
Map(
file(jarPath) -> url("https://docs.oracle.com/javase/8/docs/api")
)
}.getOrElse {
streams.value.log.warn("Failed to add bootstrap class path of Java to apiMappings")
Map.empty[File,URL]
}
},
apiURL := None, // set on a per-project basis
autoAPIMappings := true,
pomIncludeRepository := { _ => false },
pomExtra := {
<scm>
<connection>scm:git:git://github.com/scala/scala.git</connection>
<url>https://github.com/scala/scala</url>
</scm>
<issueManagement>
<system>GitHub</system>
<url>https://github.com/scala/bug/issues</url>
</issueManagement>
<developers>
<developer>
<id>lamp</id>
<name>LAMP/EPFL</name>
</developer>
<developer>
<id>Lightbend</id>
<name>Lightbend, Inc.</name>
</developer>
</developers>
},
headerLicense := (ThisBuild / headerLicense).value,
// Remove auto-generated manifest attributes
Compile / packageBin / packageOptions := Seq.empty,
Compile / packageSrc / packageOptions := Seq.empty,
// Lets us CTRL-C partest without exiting SBT entirely
Global / cancelable := true,
// Don't log process output (e.g. of forked `compiler/runMain ...Main`), just pass it
// directly to stdout
run / outputStrategy := Some(StdoutOutput)
) ++ removePomDependencies ++ setForkedWorkingDirectory ++ (
if (DottySupport.compileWithDotty)
DottySupport.commonSettings
else
Seq()
)
lazy val fatalWarningsSettings = Seq(
Compile / scalacOptions ++= {
if (fatalWarnings.value) Seq("-Werror")
else Nil
},
Compile / javacOptions ++= {
if (fatalWarnings.value) Seq("-Werror")
else Nil
},
Compile / doc / scalacOptions -= "-Werror", // there are too many doc errors to enable this right now
)
/** Extra post-processing for the published POM files. These are needed to create POMs that
* are equivalent to the ones from the old Ant build. In the long term this should be removed and
* POMs, scaladocs, OSGi manifests, etc. should all use the same metadata. */
def fixPom(extra: (String, scala.xml.Node)*): Setting[_] = {
/** Find elements in an XML document by a simple XPath and replace them */
def fixXML(n: scala.xml.Node, repl: Map[String, scala.xml.Node]): scala.xml.Node = {
def f(n: scala.xml.Node, p: String): scala.xml.Node = n match {
case e: scala.xml.Elem =>
val pp = p + "/" + e.label
repl.get(pp) match {
case Some(xml) => xml
case None => e.copy(child = e.child.map(ch => f(ch, pp)))
}
case n => n
}
f(n, "")
}
pomPostProcess := { n => fixXML(pomPostProcess.value.apply(n), Map(
"/project/organization" ->
<organization>
<name>LAMP/EPFL</name>
<url>https://lamp.epfl.ch/</url>
</organization>,
"/project/url" -> <url>https://www.scala-lang.org/</url>
) ++ extra) }
}
def ivyDependencyFilter(deps: Seq[(String, String)], scalaBinaryVersion: String) = {
import scala.xml._
import scala.xml.transform._
new RuleTransformer(new RewriteRule {
override def transform(node: Node) = node match {
case e: Elem if e.label == "dependency" && {
val org = e.attribute("org").getOrElse("").toString
val name = e.attribute("name").getOrElse("").toString
deps.exists { case (g, a) =>
org == g && (name == a || name == (a + "_" + scalaBinaryVersion))
}
} => Seq.empty
case n => n
}
})
}
val pomDependencyExclusions =
settingKey[Seq[(String, String)]]("List of (groupId, artifactId) pairs to exclude from the POM and ivy.xml")
lazy val fixCsrIvy = taskKey[Unit]("Apply pomDependencyExclusions to coursier ivy")
Global / pomDependencyExclusions := Nil
/** Remove unwanted dependencies from the POM and ivy.xml. */
lazy val removePomDependencies: Seq[Setting[_]] = Seq(
pomPostProcess := { n =>
val n2 = pomPostProcess.value.apply(n)
val deps = pomDependencyExclusions.value
import scala.xml._
import scala.xml.transform._
new RuleTransformer(new RewriteRule {
override def transform(node: Node) = node match {
case e: Elem if e.label == "dependency" &&
deps.exists { case (g, a) =>
e.child.contains(<groupId>{g}</groupId>) &&
(e.child.contains(<artifactId>{a}</artifactId>) || e.child.contains(<artifactId>{a + "_" + scalaBinaryVersion.value}</artifactId>))
} => Seq.empty
case n => n
}
}).transform(Seq(n2)).head
},
fixCsrIvy := {
// - coursier makes target/sbt-bridge/resolution-cache/org.scala-lang/scala2-sbt-bridge/2.13.12-bin-SNAPSHOT/resolved.xml.xml
// - copied to target/sbt-bridge//ivy-2.13.12-bin-SNAPSHOT.xml
// - copied to ~/.ivy2/local/org.scala-lang/scala2-sbt-bridge/2.13.12-bin-SNAPSHOT/ivys/ivy.xml
import scala.jdk.CollectionConverters._
import scala.xml._
val currentProject = csrProject.value
val ivyModule = org.apache.ivy.core.module.id.ModuleRevisionId.newInstance(
currentProject.module.organization.value,
currentProject.module.name.value,
currentProject.version,
currentProject.module.attributes.asJava)
val ivyFile = ivySbt.value.withIvy(streams.value.log)(_.getResolutionCacheManager).getResolvedIvyFileInCache(ivyModule)
val e = ivyDependencyFilter(pomDependencyExclusions.value, scalaBinaryVersion.value)
.transform(Seq(XML.loadFile(ivyFile))).head
XML.save(ivyFile.getAbsolutePath, e, xmlDecl = true)
},
publishConfiguration := Def.taskDyn {
val pc = publishConfiguration.value
Def.task {
fixCsrIvy.value
pc
}
}.value,
publishLocalConfiguration := Def.taskDyn {
val pc = publishLocalConfiguration.value
Def.task {
fixCsrIvy.value
pc
}
}.value,
deliverLocal := {
// this doesn't seem to do anything currently, it probably worked before sbt used coursier
import scala.xml._
val f = deliverLocal.value
val e = ivyDependencyFilter(pomDependencyExclusions.value, scalaBinaryVersion.value)
.transform(Seq(XML.loadFile(f))).head
XML.save(f.getAbsolutePath, e, xmlDecl = true)
f
}
)
val disableDocs = Seq[Setting[_]](
Compile / doc / sources := Seq.empty,
Compile / packageDoc / publishArtifact := false
)
lazy val setJarLocation: Setting[_] =
Compile / packageBin / artifactPath := {
// two lines below are copied over from sbt's sources:
// https://github.com/sbt/sbt/blob/0.13/main/src/main/scala/sbt/Defaults.scala#L628
//val resolvedScalaVersion = ScalaVersion((scalaVersion in artifactName).value, (scalaBinaryVersion in artifactName).value)
//val resolvedArtifactName = artifactName.value(resolvedScalaVersion, projectID.value, artifact.value)
// if you would like to get a jar with version number embedded in it (as normally sbt does)
// uncomment the other definition of the `resolvedArtifactName`
val resolvedArtifact = artifact.value
val resolvedArtifactName = s"${resolvedArtifact.name}.${resolvedArtifact.extension}"
buildDirectory.value / "pack/lib" / resolvedArtifactName
}
lazy val scalaSubprojectSettings: Seq[Setting[_]] = commonSettings :+ setJarLocation
def filterDocSources(ff: FileFilter): Seq[Setting[_]] = Seq(
Compile / doc / sources ~= (_.filter(ff.accept)),
// Excluded sources may still be referenced by the included sources, so we add the compiler
// output to the scaladoc classpath to resolve them. For the `library` project this is
// always required because otherwise the compiler cannot even initialize Definitions without
// binaries of the library on the classpath. Specifically, we get this error:
// (library/compile:doc) scala.reflect.internal.FatalError: package class scala does not have a member Int
Compile / doc / dependencyClasspath += (Compile / classDirectory).value,
Compile / doc := (Compile / doc).dependsOn(Compile / compile).value
)
def regexFileFilter(s: String): FileFilter = new FileFilter {
val pat = s.r.pattern
def accept(f: File) = pat.matcher(f.getAbsolutePath.replace('\\', '/')).matches()
}
def setForkedWorkingDirectory: Seq[Setting[_]] = {
// When we fork subprocesses, use the base directory as the working directory.
// This enables `sbt> partest test/files/run/t1.scala` or `sbt> scalac sandbox/test.scala`
val setting = (Compile / forkOptions) := (Compile / forkOptions).value.withWorkingDirectory((ThisBuild / baseDirectory).value)
setting ++ inTask(run)(setting)
}
// This project provides the STARR scalaInstance for bootstrapping
lazy val bootstrap = project.in(file("target/bootstrap")).settings(bspEnabled := false)
lazy val library = configureAsSubproject(project)
.settings(generatePropertiesFileSettings)
.settings(Osgi.settings)
.settings(AutomaticModuleName.settings("scala.library"))
.settings(fatalWarningsSettings)
.settings(
name := "scala-library",
description := "Scala Standard Library",
Compile / scalacOptions ++= Seq("-sourcepath", (Compile / scalaSource).value.toString),
Compile / doc / scalacOptions ++= {
val libraryAuxDir = (ThisBuild / baseDirectory).value / "src/library-aux"
Seq(
"-doc-no-compile", libraryAuxDir.toString,
"-skip-packages", "scala.concurrent.impl",
"-doc-root-content", (Compile / sourceDirectory).value + "/rootdoc.txt",
//"-required", // placeholder for internal flag
)
},
Compile / console / scalacOptions := {
val opts = (console / scalacOptions).value
val ix = (console / scalacOptions).value.indexOfSlice(Seq[String]("-sourcepath", (Compile / scalaSource).value.toString))
opts.patch(ix, Nil, 2)
},
Compile / unmanagedResources / includeFilter := "*.tmpl" | "*.xml" | "*.js" | "*.css" | "rootdoc.txt",
// Include *.txt files in source JAR:
Compile / packageSrc / mappings ++= {
val base = (Compile / unmanagedResourceDirectories).value
(base ** "*.txt" pair Path.relativeTo(base)) ++ {
val auxBase = (ThisBuild / baseDirectory).value / "src/library-aux"
auxBase ** ("*.scala" || "*.java") pair Path.relativeTo(auxBase)
}
},
Osgi.headers += "Import-Package" -> "sun.misc;resolution:=optional, *",
Osgi.jarlist := true,
fixPom(
"/project/name" -> <name>Scala Library</name>,
"/project/description" -> <description>Standard library for the Scala Programming Language</description>,
"/project/packaging" -> <packaging>jar</packaging>
),
apiURL := Some(url(s"https://www.scala-lang.org/api/${versionProperties.value.mavenVersion}/")),
MimaFilters.mimaSettings,
)
.settings(filterDocSources("*.scala" -- regexFileFilter(".*/scala/runtime/.*")))
.settings(
if (DottySupport.compileWithDotty)
DottySupport.librarySettings
else
Seq()
)
lazy val reflect = configureAsSubproject(project)
.settings(generatePropertiesFileSettings)
.settings(Osgi.settings)
.settings(AutomaticModuleName.settings("scala.reflect"))
.settings(fatalWarningsSettings)
.settings(
name := "scala-reflect",
description := "Scala Reflection Library",
Osgi.bundleName := "Scala Reflect",
Compile / doc / scalacOptions ++= Seq(
"-skip-packages", "scala.reflect.macros.internal:scala.reflect.internal:scala.reflect.io"
),
Osgi.headers +=
"Import-Package" -> (raw"""scala.*;version="$${range;[==,=+);$${ver}}",""" +
raw"""scala.tools.nsc;resolution:=optional;version="$${range;[==,=+);$${ver}}",""" +
"*"),
fixPom(
"/project/name" -> <name>Scala Reflect</name>,
"/project/description" -> <description>Reflection Library for the Scala Programming Language</description>,
"/project/packaging" -> <packaging>jar</packaging>
),
apiURL := Some(url(s"https://www.scala-lang.org/api/${versionProperties.value.mavenVersion}/scala-${projectFolder.value}/")),
MimaFilters.mimaSettings,
)
.dependsOn(library)
lazy val compiler = configureAsSubproject(project)
.settings(generatePropertiesFileSettings)
.settings(generateBuildCharacterFileSettings)
.settings(Osgi.settings)
.settings(AutomaticModuleName.settings("scala.tools.nsc"))
.settings(fatalWarningsSettings)
.settings(
name := "scala-compiler",
description := "Scala Compiler",
libraryDependencies += asmDep,
libraryDependencies += diffUtilsDep,
// These are only needed for the POM:
// TODO: jline dependency is only needed for the REPL shell, which should move to its own jar
libraryDependencies ++= jlineDeps,
buildCharacterPropertiesFile := (Compile / resourceManaged).value / "scala-buildcharacter.properties",
Compile / resourceGenerators += generateBuildCharacterPropertiesFile.map(file => Seq(file)).taskValue,
// this a way to make sure that classes from interactive and scaladoc projects
// end up in compiler jar. note that we need to use LocalProject references
// (with strings) to deal with mutual recursion
Compile / packageBin / products :=
(Compile / packageBin / products).value ++
(Compile / dependencyClasspath).value.filter(_.get(moduleID.key).map(id => (id.organization, id.name, id.revision)) match {
case Some((diffUtilsDep.organization, diffUtilsDep.name, diffUtilsDep.revision)) => true
case Some((asmDep.organization, asmDep.name, asmDep.revision)) => true
case _ => false
}).map(_.data) ++
(LocalProject("interactive") / Compile / packageBin / products).value ++
(LocalProject("scaladoc") / Compile / packageBin / products).value ++
(LocalProject("repl") / Compile / packageBin / products).value ++
(LocalProject("replFrontend") / Compile / packageBin / products).value,
Compile / unmanagedResources / includeFilter :=
"*.tmpl" | "*.xml" | "*.js" | "*.css" | "*.html" | "*.properties" | "*.swf" |
"*.png" | "*.gif" | "*.gif" | "*.txt",
// Also include the selected unmanaged resources and source files from the additional projects in the source JAR:
Compile / packageSrc / mappings ++= {
val base = (Compile / unmanagedResourceDirectories).value ++
(LocalProject("interactive") / Compile / unmanagedResourceDirectories).value ++
(LocalProject("scaladoc") / Compile / unmanagedResourceDirectories).value ++
(LocalProject("repl") / Compile / unmanagedResourceDirectories).value ++
(LocalProject("replFrontend") / Compile / unmanagedResourceDirectories).value
base ** ((Compile / unmanagedResources / includeFilter).value || "*.scala" || "*.psd" || "*.ai" || "*.java") pair Path.relativeTo(base)
},
// Include the additional projects in the scaladoc JAR:
Compile / doc / sources ++= {
val base =
(LocalProject("interactive") / Compile / unmanagedSourceDirectories).value ++
(LocalProject("scaladoc") / Compile / unmanagedSourceDirectories).value ++
(LocalProject("repl") / Compile / unmanagedSourceDirectories).value ++
(LocalProject("replFrontend") / Compile / unmanagedSourceDirectories).value
((base ** ("*.scala" || "*.java"))
--- (base ** "Scaladoc*ModelTest.scala") // exclude test classes that depend on partest
).get
},
Compile / scalacOptions ++= Seq(
"-Wconf:cat=deprecation&msg=early initializers:s", // compiler heavily relies upon early initializers
),
Compile / doc / scalacOptions ++= Seq(
"-doc-root-content", (Compile / sourceDirectory).value + "/rootdoc.txt"
),
Osgi.headers ++= Seq(
"Import-Package" -> raw"""org.jline.keymap.*;resolution:=optional
|org.jline.reader.*;resolution:=optional
|org.jline.style.*;resolution:=optional
|org.jline.terminal;resolution:=optional
|org.jline.terminal.impl;resolution:=optional
|org.jline.terminal.impl.jna.*;resolution:=optional
|org.jline.terminal.spi;resolution:=optional
|org.jline.utils;resolution:=optional
|org.jline.builtins;resolution:=optional
|scala.*;version="$${range;[==,=+);$${ver}}"
|*""".stripMargin.linesIterator.mkString(","),
"Class-Path" -> "scala-reflect.jar scala-library.jar"
),
// Generate the ScriptEngineFactory service definition. The old Ant build did this when building
// the JAR but sbt has no support for it and it is easier to do as a resource generator:
generateServiceProviderResources("javax.script.ScriptEngineFactory" -> "scala.tools.nsc.interpreter.shell.Scripted$Factory"),
Compile / managedResourceDirectories := Seq((Compile / resourceManaged).value),
fixPom(
"/project/name" -> <name>Scala Compiler</name>,
"/project/description" -> <description>Compiler for the Scala Programming Language</description>,
"/project/packaging" -> <packaging>jar</packaging>
),
apiURL := Some(url(s"https://www.scala-lang.org/api/${versionProperties.value.mavenVersion}/scala-${projectFolder.value}/")),
pomDependencyExclusions += (("org.scala-lang.modules", "scala-asm"))
)
.dependsOn(library, reflect)
lazy val interactive = configureAsSubproject(project)
.settings(disableDocs)
.settings(fatalWarningsSettings)
.settings(publish / skip := true)
.settings(
name := "scala-compiler-interactive",
description := "Scala Interactive Compiler",
Compile / scalacOptions ++= Seq("-Wconf:cat=deprecation&msg=early initializers:s"),
)
.dependsOn(compiler)
lazy val repl = configureAsSubproject(project)
.settings(disableDocs)
.settings(fatalWarningsSettings)
.settings(publish / skip := true)
.settings(Compile / scalacOptions ++= Seq("-Wconf:cat=deprecation&msg=early initializers:s"))
.dependsOn(compiler, interactive)
lazy val replFrontend = configureAsSubproject(project, srcdir = Some("repl-frontend"))
.settings(disableDocs)
.settings(fatalWarningsSettings)
.settings(publish / skip := true)
.settings(
libraryDependencies ++= jlineDeps,
name := "scala-repl-frontend",
)
.settings(
run := (Compile / run).partialInput(" -usejavacp").evaluated, // so `replFrontend/run` works
Compile / run / javaOptions += s"-Dscala.color=${!scala.util.Properties.isWin}",
Compile / run / javaOptions += "-Dorg.jline.terminal.output=forced-out",
)
.dependsOn(repl)
lazy val scaladoc = configureAsSubproject(project)
.settings(disableDocs)
.settings(fatalWarningsSettings)
.settings(publish / skip := true)
.settings(
name := "scala-compiler-doc",
description := "Scala Documentation Generator",
Compile / unmanagedResources / includeFilter := "*.html" | "*.css" | "*.gif" | "*.png" | "*.js" | "*.txt" | "*.svg" | "*.eot" | "*.woff" | "*.ttf",
libraryDependencies ++= ScaladocSettings.webjarResources,
Compile / resourceGenerators += ScaladocSettings.extractResourcesFromWebjar,
Compile / scalacOptions ++= Seq(
"-Wconf:cat=deprecation&msg=early initializers:s",
),
)
.dependsOn(compiler)
// dependencies on compiler and compiler-interface are "provided" to align with scala3-sbt-bridge
lazy val sbtBridge = configureAsSubproject(project, srcdir = Some("sbt-bridge"))
.settings(Osgi.settings)
.settings(AutomaticModuleName.settings("scala.sbtbridge"))
//.settings(fatalWarningsSettings)
.settings(
name := "scala2-sbt-bridge",
description := "sbt compiler bridge for Scala 2",
libraryDependencies += compilerInterfaceDep % Provided,
Compile / scalacOptions ++= Seq(
"-Wconf:cat=deprecation&msg=early initializers:s", // compiler heavily relies upon early initializers
),
generateServiceProviderResources("xsbti.compile.CompilerInterface2" -> "scala.tools.xsbt.CompilerBridge"),
generateServiceProviderResources("xsbti.compile.ConsoleInterface1" -> "scala.tools.xsbt.ConsoleBridge"),
generateServiceProviderResources("xsbti.compile.ScaladocInterface2" -> "scala.tools.xsbt.ScaladocBridge"),
generateServiceProviderResources("xsbti.InteractiveConsoleFactory" -> "scala.tools.xsbt.InteractiveConsoleBridgeFactory"),
Compile / managedResourceDirectories := Seq((Compile / resourceManaged).value),
pomDependencyExclusions ++= List((organization.value, "scala-repl-frontend"), (organization.value, "scala-compiler-doc")),
fixPom(
"/project/name" -> <name>Scala 2 sbt Bridge</name>,
"/project/description" -> <description>sbt compiler bridge for Scala 2</description>,
"/project/packaging" -> <packaging>jar</packaging>
),
headerLicense := Some(HeaderLicense.Custom(
s"""Zinc - The incremental compiler for Scala.
|Copyright Scala Center, Lightbend, and Mark Harrah
|
|Scala (${(ThisBuild/homepage).value.get})
|Copyright EPFL and Lightbend, Inc.
|
|Licensed under Apache License 2.0
|(http://www.apache.org/licenses/LICENSE-2.0).
|
|See the NOTICE file distributed with this work for
|additional information regarding copyright ownership.
|""".stripMargin)),
)
.dependsOn(compiler % Provided, replFrontend, scaladoc)
lazy val scalap = configureAsSubproject(project)
.settings(fatalWarningsSettings)
.settings(
description := "Scala Bytecode Parser",
// Include decoder.properties
Compile / unmanagedResources / includeFilter := "*.properties",
fixPom(
"/project/name" -> <name>Scalap</name>,
"/project/description" -> <description>bytecode analysis tool</description>,
"/project/properties" -> scala.xml.Text("")
),
headerLicense := Some(HeaderLicense.Custom(
s"""Scala classfile decoder (${(ThisBuild/homepage).value.get})
|
|Copyright EPFL and Lightbend, Inc.
|
|Licensed under Apache License 2.0
|(http://www.apache.org/licenses/LICENSE-2.0).
|
|See the NOTICE file distributed with this work for
|additional information regarding copyright ownership.
|""".stripMargin)),
Compile / headerSources ~= { xs =>
val excluded = Set("Memoisable.scala", "Result.scala", "Rule.scala", "Rules.scala", "SeqRule.scala")
xs filter { x => !excluded(x.getName) }
},
Compile / headerResources := Nil,
)
.dependsOn(compiler)
lazy val partest = configureAsSubproject(project)
.dependsOn(library, reflect, compiler, replFrontend, scalap, scaladoc, testkit)
.settings(Osgi.settings)
.settings(AutomaticModuleName.settings("scala.partest"))
.settings(fatalWarningsSettings)
.settings(
name := "scala-partest",
description := "Scala Compiler Testing Tool",
libraryDependencies ++= List(testInterfaceDep, diffUtilsDep, junitDep),
Compile / javacOptions ++= Seq("-XDenableSunApiLintControl", "-Xlint") ++
(if (fatalWarnings.value) Seq("-Werror") else Seq()),
pomDependencyExclusions ++= List((organization.value, "scala-repl-frontend"), (organization.value, "scala-compiler-doc")),
fixPom(
"/project/name" -> <name>Scala Partest</name>,
"/project/description" -> <description>Scala Compiler Testing Tool</description>,
"/project/packaging" -> <packaging>jar</packaging>
)
)
lazy val tastytest = configureAsSubproject(project)
.dependsOn(library, reflect, compiler, scaladoc)
.settings(disableDocs)
.settings(fatalWarningsSettings)
.settings(publish / skip := true)
.settings(
name := "scala-tastytest",
description := "Scala TASTy Integration Testing Tool",
libraryDependencies += diffUtilsDep,
)
// An instrumented version of BoxesRunTime and ScalaRunTime for partest's "specialized" test category
lazy val specLib = project.in(file("test") / "instrumented")
.dependsOn(library, reflect, compiler)
.settings(commonSettings)
.settings(disableDocs)
.settings(fatalWarningsSettings)
.settings(
publish / skip := true,
bspEnabled := false,
Compile / sourceGenerators += Def.task {
import scala.collection.JavaConverters._
val srcBase = (library / Compile / sourceDirectories).value.head / "scala/runtime"
val targetBase = (Compile / sourceManaged).value / "scala/runtime"
def patch(srcFile: String, patchFile: String): File = try {
val p = difflib.DiffUtils.parseUnifiedDiff(IO.readLines(baseDirectory.value / patchFile).asJava)
val r = difflib.DiffUtils.patch(IO.readLines(srcBase / srcFile).asJava, p)
val target = targetBase / srcFile
IO.writeLines(target, r.asScala)
target
} catch { case ex: Exception =>
streams.value.log.error(s"Error patching $srcFile: $ex")
throw ex
}
IO.createDirectory(targetBase)
Seq(
patch("BoxesRunTime.java", "boxes.patch"),
patch("ScalaRunTime.scala", "srt.patch")
)
}.taskValue,
)
// The scala version used by the benchmark suites, leave undefined to use the ambient version.")
def benchmarkScalaVersion = System.getProperty("benchmark.scala.version", "")
lazy val bench = project.in(file("test") / "benchmarks")
.dependsOn((if (benchmarkScalaVersion == "") Seq[sbt.ClasspathDep[sbt.ProjectReference]](library, compiler) else Nil): _*)
.settings(if (benchmarkScalaVersion == "") instanceSettings else Seq(scalaVersion := benchmarkScalaVersion, crossPaths := false))
.settings(disableDocs)
.settings(publish / skip := true)
.enablePlugins(JmhPlugin)
.settings(
name := "test-benchmarks",
autoScalaLibrary := false,
crossPaths := true, // needed to enable per-scala-version source directories (https://github.com/sbt/sbt/pull/1799)
compileOrder := CompileOrder.JavaThenScala, // to allow inlining from Java ("... is defined in a Java source (mixed compilation), no bytecode is available")
libraryDependencies += "org.openjdk.jol" % "jol-core" % "0.10",
libraryDependencies ++= {
if (benchmarkScalaVersion == "") Nil
else "org.scala-lang" % "scala-compiler" % benchmarkScalaVersion :: Nil
},
//scalacOptions ++= Seq("-feature", "-opt:inline:scala/**", "-Wopt"),
scalacOptions ++= Seq("-feature", "-opt:l:inline", "-opt-inline-from:scala/**", "-opt-warnings"),
// Skips JMH source generators during IDE import to avoid needing to compile scala-library during the import
// should not be needed once sbt-jmh 0.4.3 is out (https://github.com/sbt/sbt-jmh/pull/207)
Jmh / bspEnabled := false
).settings(inConfig(JmhPlugin.JmhKeys.Jmh)(scalabuild.JitWatchFilePlugin.jitwatchSettings))
lazy val testkit = configureAsSubproject(project)
.dependsOn(compiler)
.settings(Osgi.settings)
.settings(AutomaticModuleName.settings("scala.testkit"))
.settings(fatalWarningsSettings)
.settings(
name := "scala-testkit",
description := "Scala Compiler Testkit",
libraryDependencies ++= Seq(junitDep, asmDep),
Compile / unmanagedSourceDirectories := List(baseDirectory.value),
fixPom(
"/project/name" -> <name>Scala Testkit</name>,
"/project/description" -> <description>Scala Compiler Testing Tool</description>,
"/project/packaging" -> <packaging>jar</packaging>
)
)
// Jigsaw: reflective access between modules (`setAccessible(true)`) requires an `opens` directive.
// This is enforced by error (not just by warning) since JDK 16. In our tests we use reflective access
// from the unnamed package (the classpath) to JDK modules in testing utilities like `assertNotReachable`.
// `add-exports=jdk.jdeps/com.sun.tools.javap` is tests that use `:javap` in the REPL, see scala/bug#12378
val addOpensForTesting = "-XX:+IgnoreUnrecognizedVMOptions" +: "--add-exports=jdk.jdeps/com.sun.tools.javap=ALL-UNNAMED" +:
Seq("java.util.concurrent.atomic", "java.lang", "java.lang.reflect", "java.net").map(p => s"--add-opens=java.base/$p=ALL-UNNAMED")
lazy val junit = project.in(file("test") / "junit")
.dependsOn(testkit, compiler, replFrontend, scaladoc, sbtBridge)
.settings(commonSettings)
.settings(disableDocs)
.settings(fatalWarningsSettings)
.settings(publish / skip := true)
.settings(
Test / fork := true,
Test / javaOptions ++= "-Xss1M" +: addOpensForTesting,
(Test / forkOptions) := (Test / forkOptions).value.withWorkingDirectory((ThisBuild / baseDirectory).value),
(Test / testOnly / forkOptions) := (Test / testOnly / forkOptions).value.withWorkingDirectory((ThisBuild / baseDirectory).value),
Compile / scalacOptions ++= Seq(
"-Xlint:-valpattern",
"-Wconf:msg=match may not be exhaustive:s", // if we missed a case, all that happens is the test fails
"-Wconf:cat=lint-nullary-unit&site=.*Test:s", // normal unit test style
"-Ypatmat-exhaust-depth", "40", // despite not caring about patmat exhaustiveness, we still get warnings for this
),
Compile / javacOptions ++= Seq("-Xlint"),
libraryDependencies ++= Seq(junitInterfaceDep, jolDep, diffUtilsDep, compilerInterfaceDep),
testOptions += Tests.Argument(TestFrameworks.JUnit, "-a", "-v", "-s"),
Compile / unmanagedSourceDirectories := Nil,
Test / unmanagedSourceDirectories := List(baseDirectory.value),
Test / headerSources := Nil,
)
lazy val tasty = project.in(file("test") / "tasty")
.settings(commonSettings)
.dependsOn(tastytest)
.settings(disableDocs)
.settings(publish / skip := true)
.settings(
Test / fork := true,
libraryDependencies ++= Seq(junitInterfaceDep, TastySupport.scala3Library),
testOptions += Tests.Argument(TestFrameworks.JUnit, "-a", "-v"),
Test / testOptions += Tests.Argument(
s"-Dtastytest.src=${baseDirectory.value}",
s"-Dtastytest.packageName=tastytest"
),
Compile / unmanagedSourceDirectories := Nil,
Test / unmanagedSourceDirectories := List(baseDirectory.value/"test"),
)
.configs(TastySupport.CompilerClasspath, TastySupport.LibraryClasspath)
.settings(
inConfig(TastySupport.CompilerClasspath)(Defaults.configSettings),
inConfig(TastySupport.LibraryClasspath)(Defaults.configSettings),
libraryDependencies ++= Seq(
TastySupport.scala3Compiler % TastySupport.CompilerClasspath,
TastySupport.scala3Library % TastySupport.LibraryClasspath,
),
javaOptions ++= {
import java.io.File.pathSeparator
val scalaLibrary = (library / Compile / classDirectory).value.getAbsoluteFile()
val scalaReflect = (reflect / Compile / classDirectory).value.getAbsoluteFile()
val dottyCompiler = (TastySupport.CompilerClasspath / managedClasspath).value.seq.map(_.data) :+ scalaLibrary
val dottyLibrary = (TastySupport.LibraryClasspath / managedClasspath).value.seq.map(_.data) :+ scalaLibrary
Seq(
s"-Dtastytest.classpaths.dottyCompiler=${dottyCompiler.mkString(pathSeparator)}",
s"-Dtastytest.classpaths.dottyLibrary=${dottyLibrary.mkString(pathSeparator)}",
s"-Dtastytest.classpaths.scalaReflect=$scalaReflect",
)
},
Compile / scalacOptions ++= Seq(
"-Wconf:cat=lint-nullary-unit&site=.*Test:s", // normal unit test style
),
)
lazy val scalacheck = project.in(file("test") / "scalacheck")
.dependsOn(library, reflect, compiler, scaladoc)
.settings(commonSettings)
.settings(fatalWarningsSettings)
.settings(disableDocs)
.settings(publish / skip := true)
.settings(
// Enable forking to workaround https://github.com/sbt/sbt/issues/4009.
Test / fork := true,
// Instead of forking above, it should be possible to set:
// Test / classLoaderLayeringStrategy := ClassLoaderLayeringStrategy.Flat,
Test / javaOptions ++= "-Xss1M" +: addOpensForTesting,
Test / testOptions += Tests.Argument(
// Full stack trace on failure:
"-verbosity", "2"
),
libraryDependencies ++= Seq(scalacheckDep, junitDep),
Compile / unmanagedSourceDirectories := Nil,
Test / unmanagedSourceDirectories := List(baseDirectory.value),
Compile / scalacOptions ++= Seq(
"-Wconf:msg=match may not be exhaustive:s", // if we missed a case, all that happens is the test fails
"-Wconf:msg=Classes which cannot access Tree:s", // extension is irrelevant to tests
),
)
lazy val osgiTestFelix = osgiTestProject(
project.in(file(".") / "target" / "osgiTestFelix"),
"org.apache.felix" % "org.apache.felix.framework" % "5.6.10")
lazy val osgiTestEclipse = osgiTestProject(
project.in(file(".") / "target" / "osgiTestEclipse"),
"org.eclipse.tycho" % "org.eclipse.osgi" % "3.13.0.v20180226-1711")
def osgiTestProject(p: Project, framework: ModuleID) = p
.dependsOn(library, reflect, compiler)
.settings(commonSettings)
.settings(disableDocs)
.settings(
publish / skip := true,
bspEnabled := false,
Test / fork := true,
Test / parallelExecution := false,
libraryDependencies ++= {
val paxExamVersion = "4.11.0" // Last version which supports Java 9+
Seq(
junitDep,
junitInterfaceDep,
"org.ops4j.pax.exam" % "pax-exam-container-native" % paxExamVersion,
"org.ops4j.pax.exam" % "pax-exam-junit4" % paxExamVersion,
"org.ops4j.pax.exam" % "pax-exam-link-assembly" % paxExamVersion,
"org.ops4j.pax.url" % "pax-url-aether" % "2.4.1",
"org.ops4j.pax.swissbox" % "pax-swissbox-tracker" % "1.8.1",
"ch.qos.logback" % "logback-core" % "1.2.8",
"ch.qos.logback" % "logback-classic" % "1.2.8",
"org.slf4j" % "slf4j-api" % "1.7.32",
framework % Test
)
},
Test / Keys.test := (Test / Keys.test).dependsOn(Compile / packageBin).value,
Test / Keys.testOnly := (Test / Keys.testOnly).dependsOn(Compile / packageBin).evaluated,
testOptions += Tests.Argument(TestFrameworks.JUnit, "-a", "-v", "-q"),
Test / javaOptions ++= ("-Dscala.bundle.dir=" + (ThisBuild / buildDirectory).value / "osgi") +: addOpensForTesting,
Test / Keys.test / forkOptions := (Test / Keys.test / forkOptions).value.withWorkingDirectory((ThisBuild / baseDirectory).value),
Test / unmanagedSourceDirectories := List((ThisBuild / baseDirectory).value / "test" / "osgi" / "src"),
Compile / unmanagedResourceDirectories := (Test / unmanagedSourceDirectories).value,
Compile / unmanagedResources / includeFilter := "*.xml",
Compile / packageBin := { // Put the bundle JARs required for the tests into build/osgi
val targetDir = (ThisBuild / buildDirectory).value / "osgi"
val mappings = ((dist / mkPack).value / "lib").listFiles.collect {
case f if f.getName.startsWith("scala-") && f.getName.endsWith(".jar") => (f, targetDir / f.getName)
}
IO.copy(mappings, CopyOptions() withOverwrite true)
targetDir
},
cleanFiles += (ThisBuild / buildDirectory).value / "osgi"
)
lazy val verifyScriptedBoilerplate = taskKey[Unit]("Ensure scripted tests have the necessary boilerplate.")
// Running scripted tests locally
// - `set ThisBuild / Compile / packageDoc / publishArtifact := false` for faster turn around time
// - `sbtTest/scripted source-dependencies/scalac-options` to run a single test
// - `set sbtTest/scriptedBufferLog := false` to see sbt log of test
// - add `> set logLevel := Level.Debug` to individual `test` script for debug output
// - uncomment `-agentlib:...` below to attach the debugger while running a test
lazy val sbtTest = project.in(file("test") / "sbt-test")
.enablePlugins(ScriptedPlugin)
.settings(disableDocs)
.settings(
scalaVersion := appConfiguration.value.provider.scalaProvider.version,
publish / skip := true,
bspEnabled := false,
target := (ThisBuild / target).value / thisProject.value.id,
sbtTestDirectory := baseDirectory.value,
scriptedBatchExecution := true, // set to `false` to execute each test in a separate sbt instance
scriptedParallelInstances := 2, // default is 1
// hide sbt output of scripted tests
scriptedBufferLog := true,
scriptedLaunchOpts ++= Seq(
"-Dplugin.scalaVersion=" + version.value,
"-Dsbt.boot.directory=" + (target.value / ".sbt-scripted").getAbsolutePath, // Workaround sbt/sbt#3469
"-Dscripted.common=" + (baseDirectory.value / "common.sbt.template").getAbsolutePath,
// "-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=*:5005",
),
// Pass along ivy home and repositories settings to sbt instances run from the tests
scriptedLaunchOpts ++= {
val repositoryPath = (io.Path.userHome / ".sbt" / "repositories").absolutePath
s"-Dsbt.repository.config=$repositoryPath" ::
ivyPaths.value.ivyHome.map("-Dsbt.ivy.home=" + _.getAbsolutePath).toList
},
verifyScriptedBoilerplate := {
import java.nio.file._
val tests = (baseDirectory.value * "*").get.flatMap(f => (f * "*").get()).filter(_.isDirectory)
for (t <- tests) {
for (script <- (t * ("test" || "pending" || "disabled")).get().headOption) {
val ls = Files.lines(script.toPath)
val setup = ls.findFirst().orElseGet(() => "")
ls.close()
if (setup.trim != "> setup; reload")
throw new MessageOnlyException(s"$script is missing test boilerplate; the first needs to be `> setup; reload`")
}
val pluginFile = "project/ScriptedTestPlugin.scala"
if (!(t / pluginFile).exists)
throw new MessageOnlyException(s"$t is missing the file $pluginFile; copy it from any other scripted test")
}
},
scripted := scripted.dependsOn(
verifyScriptedBoilerplate,