Merge pull request #4623 from eed3si9n/wip/scalafmt

sbt-scalafmt 2.0.0

.scalafmt.conf

@@ -1,6 +1,7 @@
+version = 2.0.0-RC5
 maxColumn = 100
 project.git = true
-project.excludeFilters = [ /sbt-test/, /input_sources/, /contraband-scala/ ]
+project.excludeFilters = [ "\\Wsbt-test\\W", "\\Winput_sources\\W", "\\Wcontraband-scala\\W" ]
 
 # http://docs.scala-lang.org/style/scaladoc.html recommends the JavaDoc style.
 # scala/scala is written that way too https://github.com/scala/scala/blob/v2.12.2/src/library/scala/Predef.scala
@@ -16,3 +17,5 @@ align.openParenDefnSite = false
 
 # For better code clarity
 danglingParentheses = true
+
+trailingCommas = preserve

.travis.yml

@@ -10,7 +10,7 @@ env:
     # WHITESOURCE_PASSWORD=
     - secure: d3bu2KNwsVHwfhbGgO+gmRfDKBJhfICdCJFGWKf2w3Gv86AJZX9nuTYRxz0KtdvEHO5Xw8WTBZLPb2thSJqhw9OCm4J8TBAVqCP0ruUj4+aqBUFy4bVexQ6WKE6nWHs4JPzPk8c6uC1LG3hMuzlC8RGETXtL/n81Ef1u7NjyXjs=
   matrix:
-    - SBT_CMD=";mimaReportBinaryIssues ;scalafmtCheck ;headerCheck ;test:headerCheck ;whitesourceOnPush ;test:compile ;mainSettingsProj/test ;safeUnitTests ;otherUnitTests; doc"
+    - SBT_CMD=";mimaReportBinaryIssues ;scalafmtCheckAll ;headerCheck ;test:headerCheck ;whitesourceOnPush ;test:compile ;mainSettingsProj/test ;safeUnitTests ;otherUnitTests; doc"
     - SBT_CMD="scripted actions/*"
     - SBT_CMD="scripted apiinfo/* compiler-project/* ivy-deps-management/*"
     - SBT_CMD="scripted dependency-management/*1of4"

internal/util-collection/src/main/scala/sbt/internal/util/Dag.scala

@@ -27,7 +27,9 @@ object Dag {
     def visit(node: T): Unit = {
       if (!discovered(node)) {
         discovered(node) = true;
-        try { visitAll(dependencies(node)); } catch { case c: Cyclic => throw node :: c }
+        try {
+          visitAll(dependencies(node));
+        } catch { case c: Cyclic => throw node :: c }
         finished += node
         ()
       } else if (!finished(node))

internal/util-collection/src/main/scala/sbt/internal/util/IDSet.scala

@@ -48,7 +48,10 @@ object IDSet {
     def isEmpty = backing.isEmpty
 
     def process[S](t: T)(ifSeen: S)(ifNew: => S) =
-      if (contains(t)) ifSeen else { this += t; ifNew }
+      if (contains(t)) ifSeen
+      else {
+        this += t; ifNew
+      }
 
     override def toString = backing.toString
   }

internal/util-collection/src/main/scala/sbt/internal/util/INode.scala

@@ -95,7 +95,9 @@ abstract class EvaluateSettings[ScopeType] {
   }
 
   private[this] def run0(work: => Unit): Unit = {
-    try { work } catch { case e: Throwable => complete.put(Some(e)) }
+    try {
+      work
+    } catch { case e: Throwable => complete.put(Some(e)) }
     workComplete()
   }
 

internal/util-collection/src/main/scala/sbt/internal/util/Settings.scala

@@ -206,7 +206,9 @@ trait Init[ScopeType] {
     // order the initializations.  cyclic references are detected here.
     val ordered: Seq[Compiled[_]] = sort(cMap)
     // evaluation: apply the initializations.
-    try { applyInits(ordered) } catch {
+    try {
+      applyInits(ordered)
+    } catch {
       case rru: RuntimeUndefined =>
         throw Uninitialized(cMap.keys.toSeq, delegates, rru.undefined, true)
     }
@@ -285,7 +287,9 @@ trait Init[ScopeType] {
         def executor = x
       }
       eval.run
-    } finally { x.shutdown() }
+    } finally {
+      x.shutdown()
+    }
   }
 
   def showUndefined(

internal/util-collection/src/main/scala/sbt/internal/util/Signal.scala

@@ -70,7 +70,9 @@ object Signals {
 private final class Signals0 {
   def supported(signal: String): Boolean = {
     import sun.misc.Signal
-    try { new Signal(signal); true } catch { case _: IllegalArgumentException => false }
+    try {
+      new Signal(signal); true
+    } catch { case _: IllegalArgumentException => false }
   }
 
   // returns a LinkageError in `action` as Left(t) in order to avoid it being
@@ -85,6 +87,8 @@ private final class Signals0 {
     val oldHandler = Signal.handle(intSignal, newHandler)
 
     try Right(action())
-    catch { case e: LinkageError => Left(e) } finally { Signal.handle(intSignal, oldHandler); () }
+    catch { case e: LinkageError => Left(e) } finally {
+      Signal.handle(intSignal, oldHandler); ()
+    }
   }
 }

internal/util-collection/src/test/scala/SettingsExample.scala

@@ -28,7 +28,9 @@ case class SettingsExample() extends Init[Scope] {
   val delegates: Scope => Seq[Scope] = {
     case s @ Scope(index, proj) =>
       s +: (if (index <= 0) Nil
-            else { (if (proj > 0) List(Scope(index)) else Nil) ++: delegates(Scope(index - 1)) })
+            else {
+              (if (proj > 0) List(Scope(index)) else Nil) ++: delegates(Scope(index - 1))
+            })
   }
 
   // Not using this feature in this example.

internal/util-collection/src/test/scala/SettingsTest.scala

@@ -158,7 +158,9 @@ object SettingsTest extends Properties("settings") {
   //  property("Catches circular references") = forAll(chainLengthGen) { checkCircularReferences _ }
   final def checkCircularReferences(intermediate: Int): Prop = {
     val ccr = new CCR(intermediate)
-    try { evaluate(setting(chk, ccr.top) :: Nil); false } catch {
+    try {
+      evaluate(setting(chk, ccr.top) :: Nil); false
+    } catch {
       case _: java.lang.Exception => true
     }
   }
@@ -195,7 +197,9 @@ object SettingsTest extends Properties("settings") {
   }
 
   def evaluate(settings: Seq[Setting[_]]): Settings[Scope] =
-    try { make(settings)(delegates, scopeLocal, showFullKey) } catch {
+    try {
+      make(settings)(delegates, scopeLocal, showFullKey)
+    } catch {
       case e: Throwable => e.printStackTrace(); throw e
     }
 }

internal/util-complete/src/main/scala/sbt/internal/util/LineReader.scala

@@ -166,7 +166,11 @@ private[sbt] object JLine {
   def withJLine[T](action: => T): T =
     withTerminal { t =>
       t.init
-      try { action } finally { t.restore }
+      try {
+        action
+      } finally {
+        t.restore
+      }
     }
 
   def simple(

internal/util-complete/src/main/scala/sbt/internal/util/complete/History.scala

@@ -19,7 +19,10 @@ final class History private (val lines: IndexedSeq[String], val path: Option[Fil
   def !! : Option[String] = !-(1)
 
   def apply(i: Int): Option[String] =
-    if (0 <= i && i < size) Some(lines(i)) else { sys.error("Invalid history index: " + i) }
+    if (0 <= i && i < size) Some(lines(i))
+    else {
+      sys.error("Invalid history index: " + i)
+    }
 
   def !(i: Int): Option[String] = apply(i)
 
@@ -54,5 +57,7 @@ object History {
     new History(lines.toIndexedSeq, path)
 
   def number(s: String): Option[Int] =
-    try { Some(s.toInt) } catch { case _: NumberFormatException => None }
+    try {
+      Some(s.toInt)
+    } catch { case _: NumberFormatException => None }
 }

internal/util-complete/src/main/scala/sbt/internal/util/complete/Parser.scala

@@ -641,14 +641,26 @@ private final case class SoftInvalid(fail: Failure) extends ValidParser[Nothing]
 }
 
 private final class TrapAndFail[A](a: Parser[A]) extends ValidParser[A] {
-  def result = try { a.result } catch { case _: Exception           => None }
-  def resultEmpty = try { a.resultEmpty } catch { case e: Exception => fail(e) }
+  def result =
+    try {
+      a.result
+    } catch { case _: Exception => None }
+  def resultEmpty =
+    try {
+      a.resultEmpty
+    } catch { case e: Exception => fail(e) }
 
-  def derive(c: Char) = try { trapAndFail(a derive c) } catch {
+  def derive(c: Char) =
+    try {
+      trapAndFail(a derive c)
+    } catch {
       case e: Exception => Invalid(fail(e))
     }
 
-  def completions(level: Int) = try { a.completions(level) } catch {
+  def completions(level: Int) =
+    try {
+      a.completions(level)
+    } catch {
       case _: Exception => Completions.nil
     }
 

internal/util-complete/src/main/scala/sbt/internal/util/complete/Parsers.scala

@@ -264,7 +264,9 @@ trait Parsers {
    */
   def mapOrFail[S, T](p: Parser[S])(f: S => T): Parser[T] =
     p flatMap { s =>
-      try { success(f(s)) } catch { case e: Exception => failure(e.toString) }
+      try {
+        success(f(s))
+      } catch { case e: Exception => failure(e.toString) }
     }
 
   /**

main-actions/src/main/scala/sbt/Sync.scala

@@ -123,7 +123,9 @@ object Sync {
   def readInfo[F <: FileInfo](
       store: CacheStore
   )(implicit infoFormat: JsonFormat[F]): RelationInfo[F] =
-    try { readUncaught[F](store)(infoFormat) } catch {
+    try {
+      readUncaught[F](store)(infoFormat)
+    } catch {
       case _: IOException  => (Relation.empty[File, File], Map.empty[File, F])
       case _: ZipException => (Relation.empty[File, File], Map.empty[File, F])
       case e: TranslatedException =>

main-actions/src/main/scala/sbt/compiler/Eval.scala

@@ -218,7 +218,11 @@ final class Eval(
         val extra = ev.read(cacheFile(back, moduleName))
         (extra, loader)
       case _ =>
-        try { compileAndLoad(run, unit, imports, backing, moduleName, ev) } finally { unlinkAll() }
+        try {
+          compileAndLoad(run, unit, imports, backing, moduleName, ev)
+        } finally {
+          unlinkAll()
+        }
     }
 
     val generatedFiles = getGeneratedFiles(backing, moduleName)

main-settings/src/main/scala/sbt/Scope.scala

@@ -273,8 +273,7 @@ object Scope {
       taskInherit: AttributeKey[_] => Seq[AttributeKey[_]],
   ): Scope => Seq[Scope] = {
     val index = delegates(refs, configurations, projectInherit, configInherit)
-    scope =>
-      indexedDelegates(resolve, index, rootProject, taskInherit)(scope)
+    scope => indexedDelegates(resolve, index, rootProject, taskInherit)(scope)
   }
 
   @deprecated("Use variant without extraInherit", "1.1.1")

main/src/main/scala/sbt/BackgroundJobService.scala

@@ -48,8 +48,7 @@ abstract class BackgroundJobService extends Closeable {
 object BackgroundJobService {
   private[sbt] def jobIdParser: (State, Seq[JobHandle]) => Parser[Seq[JobHandle]] = {
     import DefaultParsers._
-    (state, handles) =>
-      {
+    (state, handles) => {
       val stringIdParser: Parser[Seq[String]] = Space ~> token(
         NotSpace examples handles.map(_.id.toString).toSet,
         description = "<job id>"

main/src/main/scala/sbt/Defaults.scala

@@ -268,8 +268,7 @@ object Defaults extends BuildCommon {
       taskTemporaryDirectory := { val dir = IO.createTemporaryDirectory; dir.deleteOnExit(); dir },
       onComplete := {
         val tempDirectory = taskTemporaryDirectory.value
-        () =>
-          Clean.deleteContents(tempDirectory, _ => false)
+        () => Clean.deleteContents(tempDirectory, _ => false)
       },
       useSuperShell := { if (insideCI.value) false else sbt.internal.TaskProgress.isEnabled },
       progressReports := { (s: State) =>
@@ -295,8 +294,7 @@ object Defaults extends BuildCommon {
       Continuous.dynamicInputs := Continuous.dynamicInputsImpl.value,
       externalHooks := {
         val repository = fileTreeRepository.value
-        compileOptions =>
-          Some(ExternalHooks(compileOptions, repository))
+        compileOptions => Some(ExternalHooks(compileOptions, repository))
       },
       logBuffered :== false,
       commands :== Nil,
@@ -1686,7 +1684,8 @@ object Defaults extends BuildCommon {
   private[sbt] def foldMappers[A](mappers: Seq[A => Option[A]]) =
     mappers.foldRight({ p: A =>
       p
-    }) { (mapper, mappers) =>
+    }) {
+      (mapper, mappers) =>
         { p: A =>
           mapper(p).getOrElse(mappers(p))
         }
@@ -3188,8 +3187,7 @@ object Classpaths {
         case _ => sys.error("Invalid configuration '" + confString + "'") // shouldn't get here
       }
     val m = ms.toMap
-    s =>
-      m.getOrElse(s, Nil)
+    s => m.getOrElse(s, Nil)
   }
 
   def union[A, B](maps: Seq[A => Seq[B]]): A => Seq[B] =
@@ -3365,12 +3363,16 @@ object Classpaths {
 
   // try/catch for supporting earlier launchers
   def bootIvyHome(app: xsbti.AppConfiguration): Option[File] =
-    try { Option(app.provider.scalaProvider.launcher.ivyHome) } catch {
+    try {
+      Option(app.provider.scalaProvider.launcher.ivyHome)
+    } catch {
       case _: NoSuchMethodError => None
     }
 
   def bootChecksums(app: xsbti.AppConfiguration): Vector[String] =
-    try { app.provider.scalaProvider.launcher.checksums.toVector } catch {
+    try {
+      app.provider.scalaProvider.launcher.checksums.toVector
+    } catch {
       case _: NoSuchMethodError => IvySbt.DefaultChecksums
     }
 
@@ -3380,23 +3382,33 @@ object Classpaths {
 
   /** Loads the `appRepositories` configured for this launcher, if supported. */
   def appRepositories(app: xsbti.AppConfiguration): Option[Vector[Resolver]] =
-    try { Some(app.provider.scalaProvider.launcher.appRepositories.toVector map bootRepository) } catch {
+    try {
+      Some(app.provider.scalaProvider.launcher.appRepositories.toVector map bootRepository)
+    } catch {
       case _: NoSuchMethodError => None
     }
 
   def bootRepositories(app: xsbti.AppConfiguration): Option[Vector[Resolver]] =
-    try { Some(app.provider.scalaProvider.launcher.ivyRepositories.toVector map bootRepository) } catch {
+    try {
+      Some(app.provider.scalaProvider.launcher.ivyRepositories.toVector map bootRepository)
+    } catch {
       case _: NoSuchMethodError => None
     }
 
   private[this] def mavenCompatible(ivyRepo: xsbti.IvyRepository): Boolean =
-    try { ivyRepo.mavenCompatible } catch { case _: NoSuchMethodError => false }
+    try {
+      ivyRepo.mavenCompatible
+    } catch { case _: NoSuchMethodError => false }
 
   private[this] def skipConsistencyCheck(ivyRepo: xsbti.IvyRepository): Boolean =
-    try { ivyRepo.skipConsistencyCheck } catch { case _: NoSuchMethodError => false }
+    try {
+      ivyRepo.skipConsistencyCheck
+    } catch { case _: NoSuchMethodError => false }
 
   private[this] def descriptorOptional(ivyRepo: xsbti.IvyRepository): Boolean =
-    try { ivyRepo.descriptorOptional } catch { case _: NoSuchMethodError => false }
+    try {
+      ivyRepo.descriptorOptional
+    } catch { case _: NoSuchMethodError => false }
 
   private[this] def bootRepository(repo: xsbti.Repository): Resolver = {
     import xsbti.Predefined

main/src/main/scala/sbt/EvaluateTask.scala

@@ -367,7 +367,11 @@ object EvaluateTask {
 
   def withStreams[T](structure: BuildStructure, state: State)(f: Streams => T): T = {
     val str = std.Streams.closeable(structure.streams(state))
-    try { f(str) } finally { str.close() }
+    try {
+      f(str)
+    } finally {
+      str.close()
+    }
   }
 
   def getTask[T](

main/src/main/scala/sbt/Main.scala

@@ -624,7 +624,9 @@ object BuiltinCommands {
         catch {
           case NonFatal(e) =>
             try export0(s)
-            finally { throw e }
+            finally {
+              throw e
+            }
         }
         export0(newS)
       }

main/src/main/scala/sbt/Plugins.scala

@@ -189,8 +189,7 @@ object Plugins extends PluginsFunctions {
       val allEnabledByClause = defined.filterNot(_.isRoot).flatMap(d => asEnabledByClauses(d))
 
       // Note: Here is where the function begins.  We're given a list of plugins now.
-      (requestedPlugins, log) =>
-        {
+      (requestedPlugins, log) => {
         timed("Plugins.deducer#function", log) {
           def explicitlyDisabled(p: AutoPlugin): Boolean = hasExclude(requestedPlugins, p)
           val alwaysEnabled: List[AutoPlugin] =

main/src/main/scala/sbt/ScopeFilter.scala

@@ -40,8 +40,7 @@ object ScopeFilter {
         val pf = projects(data)
         val cf = configurations(data)
         val tf = tasks(data)
-        s =>
-          pf(s.project) && cf(s.config) && tf(s.task)
+        s => pf(s.project) && cf(s.config) && tf(s.task)
       }
     }
 
@@ -49,8 +48,7 @@ object ScopeFilter {
     new ScopeFilter {
       private[sbt] def apply(data: Data): Scope => Boolean = {
         val d = delegate(data)
-        scope =>
-          {
+        scope => {
           val accept = d(scope)
           println((if (accept) "ACCEPT " else "reject ") + scope)
           accept
@@ -273,8 +271,7 @@ object ScopeFilter {
       private[sbt] def apply(data: Data): In => Boolean = {
         val a = self(data)
         val b = other(data)
-        s =>
-          a(s) && b(s)
+        s => a(s) && b(s)
       }
     }
 
@@ -283,8 +280,7 @@ object ScopeFilter {
       private[sbt] def apply(data: Data): In => Boolean = {
         val a = self(data)
         val b = other(data)
-        s =>
-          a(s) || b(s)
+        s => a(s) || b(s)
       }
     }
 
@@ -292,8 +288,7 @@ object ScopeFilter {
     def unary_- : Base[In] = new Base[In] {
       private[sbt] def apply(data: Data): In => Boolean = {
         val a = self(data)
-        s =>
-          !a(s)
+        s => !a(s)
       }
     }
   }

main/src/main/scala/sbt/SessionVar.scala

@@ -64,7 +64,9 @@ object SessionVar {
 
   def read[T](key: ScopedKey[Task[T]], state: State)(implicit f: JsonFormat[T]): Option[T] =
     Project.structure(state).streams(state).use(key) { s =>
-      try { Some(s.getInput(key, DefaultDataID).read[T]) } catch { case NonFatal(_) => None }
+      try {
+        Some(s.getInput(key, DefaultDataID).read[T])
+      } catch { case NonFatal(_) => None }
     }
 
   def load[T](key: ScopedKey[Task[T]], state: State)(implicit f: JsonFormat[T]): Option[T] =

main/src/main/scala/sbt/TemplateCommandUtil.scala

@@ -117,7 +117,9 @@ private[sbt] object TemplateCommandUtil {
     val interfaceClass = getInterfaceClass(interfaceClassName, loader)
     val interface = interfaceClass.getDeclaredConstructor().newInstance().asInstanceOf[AnyRef]
     val method = interfaceClass.getMethod(methodName, argTypes: _*)
-    try { method.invoke(interface, args: _*) } catch {
+    try {
+      method.invoke(interface, args: _*)
+    } catch {
       case e: InvocationTargetException => throw e.getCause
     }
   }

main/src/main/scala/sbt/internal/Clean.scala

@@ -64,19 +64,16 @@ object Clean {
       // Don't use a regular logger because the logger actually writes to the target directory.
       val debug = (logLevel in scope).?.value.orElse(state.value.get(logLevel.key)) match {
         case Some(Level.Debug) =>
-          (string: String) =>
-            println(s"[debug] $string")
+          (string: String) => println(s"[debug] $string")
         case _ =>
-          (_: String) =>
-            {}
+          (_: String) => {}
       }
       val delete = tryDelete(debug)
       cleanFiles.value.sorted.reverseIterator.foreach(delete)
       (fileOutputs in scope).value.foreach { g =>
         val filter: TypedPath => Boolean = {
           val globFilter = g.toTypedPathFilter
-          tp =>
-            !globFilter(tp) || excludeFilter(tp)
+          tp => !globFilter(tp) || excludeFilter(tp)
         }
         deleteContents(g.base.toFile, filter, FileTreeView.DEFAULT, delete)
         delete(g.base.toFile)

main/src/main/scala/sbt/internal/Continuous.scala

@@ -456,8 +456,7 @@ object Continuous extends DeprecatedContinuous {
         }
       }
     }
-    () =>
-      {
+    () => {
       val res = f.view.map(_()).min
       // Print the default watch message if there are multiple tasks
       if (configs.size > 1)
@@ -500,11 +499,9 @@ object Continuous extends DeprecatedContinuous {
                 if (excludedBuildFilter(entry)) onMetaBuildEvent(c, event) else Watch.Ignore
               ).min
           }
-        event: Event =>
-          event -> oe(event)
+        event: Event => event -> oe(event)
       }
-      event: Event =>
-        f.view.map(_.apply(event)).minBy(_._2)
+      event: Event => f.view.map(_.apply(event)).minBy(_._2)
     }
     val monitor: FileEventMonitor[FileAttributes] = new FileEventMonitor[FileAttributes] {
 
@@ -654,15 +651,12 @@ object Continuous extends DeprecatedContinuous {
         .map { inputStreamKey =>
           val is = extracted.runTask(inputStreamKey, state)._2
           val handler = c.watchSettings.inputHandler.getOrElse(defaultInputHandler(inputParser))
-          () =>
-            handler(is)
+          () => handler(is)
         }
         .getOrElse(() => Watch.Ignore)
-      (string: String) =>
-        (default(string) :: alternative() :: Nil).min
+      (string: String) => (default(string) :: alternative() :: Nil).min
     }
-    () =>
-      {
+    () => {
       val stringBuilder = new StringBuilder
       while (inputStream.available > 0) stringBuilder += inputStream.read().toChar
       val newBytes = stringBuilder.toString

main/src/main/scala/sbt/internal/EvaluateConfigurations.scala

@@ -119,8 +119,7 @@ private[sbt] object EvaluateConfigurations {
       offset: Int
   ): LazyClassLoaded[Seq[Setting[_]]] = {
     val l = evaluateSbtFile(eval, file, lines, imports, offset)
-    loader =>
-      l(loader).settings
+    loader => l(loader).settings
   }
 
   /**
@@ -160,8 +159,7 @@ private[sbt] object EvaluateConfigurations {
     eval.unlinkDeferred()
     // Tracks all the files we generated from evaluating the sbt file.
     val allGeneratedFiles = (definitions.generated ++ dslEntries.flatMap(_.generated))
-    loader =>
-      {
+    loader => {
       val projects = {
         val compositeProjects = definitions.values(loader).collect {
           case p: CompositeProject => p

main/src/main/scala/sbt/internal/Load.scala

@@ -132,7 +132,9 @@ private[sbt] object Load {
   }
 
   private def bootIvyHome(app: xsbti.AppConfiguration): Option[File] =
-    try { Option(app.provider.scalaProvider.launcher.ivyHome) } catch {
+    try {
+      Option(app.provider.scalaProvider.launcher.ivyHome)
+    } catch {
       case _: NoSuchMethodError => None
     }
 
@@ -176,8 +178,7 @@ private[sbt] object Load {
     val imports =
       BuildUtil.baseImports ++ config.detectedGlobalPlugins.imports
 
-    loader =>
-      {
+    loader => {
       val loaded = EvaluateConfigurations(eval, files, imports)(loader)
       // TODO - We have a potential leak of config-classes in the global directory right now.
       // We need to find a way to clean these safely, or at least warn users about
@@ -421,8 +422,7 @@ private[sbt] object Load {
 
   def lazyEval(unit: BuildUnit): () => Eval = {
     lazy val eval = mkEval(unit)
-    () =>
-      eval
+    () => eval
   }
 
   def mkEval(unit: BuildUnit): Eval =
@@ -616,8 +616,7 @@ private[sbt] object Load {
       checkProjectBase(against, fResolved)
       fResolved
     }
-    p =>
-      p.copy(base = resolve(p.base))
+    p => p.copy(base = resolve(p.base))
   }
 
   def resolveProjects(loaded: PartBuild): LoadedBuild = {

main/src/main/scala/sbt/internal/Resolve.scala

@@ -24,8 +24,7 @@ object Resolve {
         :: resolveConfig(index, key, mask) _
         :: Nil
     )
-    scope =>
-      rs.foldLeft(scope)((s, f) => f(s))
+    scope => rs.foldLeft(scope)((s, f) => f(s))
   }
 
   def resolveTask(mask: ScopeMask)(scope: Scope): Scope =

project/plugins.sbt

@@ -2,7 +2,7 @@ scalaVersion := "2.12.8"
 scalacOptions ++= Seq("-feature", "-language:postfixOps")
 
 addSbtPlugin("org.scala-sbt"     % "sbt-houserules"  % "0.3.9")
-addSbtPlugin("com.geirsson"      % "sbt-scalafmt"    % "1.5.1")
+addSbtPlugin("org.scalameta"     % "sbt-scalafmt"    % "2.0.0")
 addSbtPlugin("org.scala-sbt"     % "sbt-contraband"  % "0.4.1")
 addSbtPlugin("de.heikoseeberger" % "sbt-header"      % "3.0.2")
 addSbtPlugin("com.eed3si9n"      % "sbt-buildinfo"   % "0.9.0")

run/src/main/scala/sbt/Run.scala

@@ -68,7 +68,9 @@ class Run(newLoader: Seq[File] => ClassLoader, trapExit: Boolean) extends ScalaR
     log.info("Running " + mainClass + " " + options.mkString(" "))
 
     def execute() =
-      try { run0(mainClass, classpath, options, log) } catch {
+      try {
+        run0(mainClass, classpath, options, log)
+      } catch {
         case e: java.lang.reflect.InvocationTargetException => throw e.getCause
       }
     def directExecute(): Try[Unit] =
@@ -109,7 +111,9 @@ class Run(newLoader: Seq[File] => ClassLoader, trapExit: Boolean) extends ScalaR
     val currentThread = Thread.currentThread
     val oldLoader = Thread.currentThread.getContextClassLoader
     currentThread.setContextClassLoader(loader)
-    try { main.invoke(null, options.toArray[String]); () } catch {
+    try {
+      main.invoke(null, options.toArray[String]); ()
+    } catch {
       case t: Throwable =>
         t.getCause match {
           case e: java.lang.IllegalAccessError =>

run/src/main/scala/sbt/TrapExit.scala

@@ -59,7 +59,9 @@ object TrapExit {
 
   private[this] def runUnmanaged(execute: => Unit, log: Logger): Int = {
     log.warn("Managed execution not possible: security manager not installed.")
-    try { execute; 0 } catch {
+    try {
+      execute; 0
+    } catch {
       case e: Exception =>
         log.error("Error during execution: " + e.toString)
         log.trace(e)
@@ -153,7 +155,9 @@ private final class TrapExit(delegateManager: SecurityManager) extends SecurityM
   def runManaged(f: Supplier[Unit], xlog: xsbti.Logger): Int = {
     val _ = running.incrementAndGet()
     try runManaged0(f, xlog)
-    finally { running.decrementAndGet(); () }
+    finally {
+      running.decrementAndGet(); ()
+    }
   }
   private[this] def runManaged0(f: Supplier[Unit], xlog: xsbti.Logger): Int = {
     val log: Logger = xlog

sbt/src/test/scala/testpkg/ServerSpec.scala

@@ -176,10 +176,14 @@ object TestServer {
         try {
           f(testServer)
         } finally {
-          try { testServer.bye() } finally {}
+          try {
+            testServer.bye()
+          } finally {}
         }
       case _ =>
-        try { testServer.bye() } finally {}
+        try {
+          testServer.bye()
+        } finally {}
         hostLog("Server started but not connected properly... restarting...")
         withTestServer(testBuild)(f)
     }

scripted-sbt-redux/src/main/scala/sbt/scriptedtest/ScriptedTests.scala

@@ -61,8 +61,7 @@ final class ScriptedTests(
       val g = groupDir.getName
       val n = nme.getName
       val label = s"$g / $n"
-      () =>
-        {
+      () => {
         println(s"Running $label")
         val result = testResources.readWriteResourceDirectory(g, n) { testDirectory =>
           val buffer = new BufferedLogger(new FullLogger(log))
@@ -140,7 +139,7 @@ final class ScriptedTests(
 
       def logTests(size: Int, how: String) =
         log.info(
-          f"Running $size / $totalSize (${size * 100D / totalSize}%3.2f%%) scripted tests with $how"
+          f"Running $size / $totalSize (${size * 100d / totalSize}%3.2f%%) scripted tests with $how"
         )
       logTests(runFromSourceBasedTests.size, "RunFromSourceMain")
       logTests(launcherBasedTests.size, "sbt/launcher")

tasks-standard/src/main/scala/sbt/std/Streams.scala

@@ -100,13 +100,19 @@ trait Streams[Key] {
   def use[T](key: Key)(f: TaskStreams[Key] => T): T = {
     val s = apply(key)
     s.open()
-    try { f(s) } finally { s.close() }
+    try {
+      f(s)
+    } finally {
+      s.close()
+    }
   }
 }
 trait CloseableStreams[Key] extends Streams[Key] with java.io.Closeable
 object Streams {
   private[this] val closeQuietly = (c: Closeable) =>
-    try { c.close() } catch { case _: IOException => () }
+    try {
+      c.close()
+    } catch { case _: IOException => () }
 
   def closeable[Key](delegate: Streams[Key]): CloseableStreams[Key] = new CloseableStreams[Key] {
     private[this] val streams = new collection.mutable.HashMap[Key, ManagedStreams[Key]]

tasks-standard/src/test/scala/TaskGen.scala

@@ -29,7 +29,11 @@ object TaskGen extends std.TaskExtra {
       Execute.noTriggers,
       ExecuteProgress.empty[Task]
     )(std.Transform(dummies))
-    try { x.run(root)(service) } finally { shutdown() }
+    try {
+      x.run(root)(service)
+    } finally {
+      shutdown()
+    }
   }
   def tryRun[T](root: Task[T], checkCycles: Boolean, maxWorkers: Int): T =
     run(root, checkCycles, maxWorkers) match {

tasks-standard/src/test/scala/TaskRunnerCircular.scala

@@ -27,7 +27,9 @@ object TaskRunnerCircularTest extends Properties("TaskRunner Circular") {
         else
           iterate(task(t - 1).named((t - 1).toString))
       }
-    try { checkResult(tryRun(iterate(top), true, workers), intermediate) } catch {
+    try {
+      checkResult(tryRun(iterate(top), true, workers), intermediate)
+    } catch {
       case i: Incomplete if cyclic(i) => ("Unexpected cyclic exception: " + i) |: false
     }
   }
@@ -40,7 +42,9 @@ object TaskRunnerCircularTest extends Properties("TaskRunner Circular") {
         else
           iterate(task(t - 1).named((t - 1).toString), i - 1)
       }
-    try { tryRun(top, true, workers); false } catch { case i: Incomplete => cyclic(i) }
+    try {
+      tryRun(top, true, workers); false
+    } catch { case i: Incomplete => cyclic(i) }
   }
 
   def cyclic(i: Incomplete) =

tasks-standard/src/test/scala/TaskSerial.scala

@@ -89,7 +89,11 @@ object TaskTest {
       Execute.noTriggers,
       ExecuteProgress.empty[Task]
     )(taskToNode(idK[Task]))
-    try { x.run(root)(service) } finally { shutdown() }
+    try {
+      x.run(root)(service)
+    } finally {
+      shutdown()
+    }
   }
   def tryRun[T](
       root: Task[T],

tasks/src/main/scala/sbt/CompletionService.scala

@@ -37,15 +37,18 @@ object CompletionService {
     val future = try completion.submit { new Callable[T] { def call = work() } } catch {
       case _: RejectedExecutionException => throw Incomplete(None, message = Some("cancelled"))
     }
-    () =>
-      future.get()
+    () => future.get()
   }
   def manage[A, T](
       service: CompletionService[A, T]
   )(setup: A => Unit, cleanup: A => Unit): CompletionService[A, T] =
     wrap(service) { (node, work) => () =>
       setup(node)
-      try { work() } finally { cleanup(node) }
+      try {
+        work()
+      } finally {
+        cleanup(node)
+      }
     }
   def wrap[A, T](
       service: CompletionService[A, T]

tasks/src/main/scala/sbt/Execute.scala

@@ -81,7 +81,9 @@ private[sbt] final class Execute[F[_] <: AnyRef](
     "State: " + state.toString + "\n\nResults: " + results + "\n\nCalls: " + callers + "\n\n"
 
   def run[A](root: F[A])(implicit strategy: Strategy): Result[A] =
-    try { runKeep(root)(strategy)(root) } catch { case i: Incomplete => Inc(i) }
+    try {
+      runKeep(root)(strategy)(root)
+    } catch { case i: Incomplete => Inc(i) }
 
   def runKeep[A](root: F[A])(implicit strategy: Strategy): RMap[F, Result] = {
     assert(state.isEmpty, "Execute already running/ran.")

testing/src/main/scala/sbt/JUnitXmlTestsListener.scala

@@ -104,13 +104,20 @@ class JUnitXmlTestsListener(val outputDir: String, logger: Logger) extends Tests
       )
 
       val result =
-        <testsuite hostname={ hostname } name={ name } tests={ tests + "" } errors={ errors + "" } failures={ failures + "" } skipped={ ignoredSkippedPending + "" } time={ (duration / 1000.0).toString } timestamp={formatISO8601DateTime(timestamp)}>
+        <testsuite hostname={hostname} name={name} tests={tests + ""} errors={errors + ""} failures={
+          failures + ""
+        } skipped={ignoredSkippedPending + ""} time={(duration / 1000.0).toString} timestamp={
+          formatISO8601DateTime(timestamp)
+        }>
                      {properties}
                      {
-                       for (e <- events) yield <testcase classname={ name } name={
+          for (e <- events)
+            yield
+              <testcase classname={name} name={
                 e.selector match {
                   case selector: TestSelector => selector.testName.split('.').last
-                           case nested: NestedTestSelector => nested.suiteId().split('.').last + "." + nested.testName()
+                  case nested: NestedTestSelector =>
+                    nested.suiteId().split('.').last + "." + nested.testName()
                   case other => s"(It is not a test it is a ${other.getClass.getCanonicalName})"
                 }
               } time={(e.duration() / 1000.0).toString}>
@@ -125,9 +132,15 @@ class JUnitXmlTestsListener(val outputDir: String, logger: Logger) extends Tests
                   ""
                 }
                 e.status match {
-                                                     case TStatus.Error if (e.throwable.isDefined)=> <error message={ e.throwable.get.getMessage } type={ e.throwable.get.getClass.getName }>{ trace }</error>
+                  case TStatus.Error if (e.throwable.isDefined) =>
+                    <error message={e.throwable.get.getMessage} type={
+                      e.throwable.get.getClass.getName
+                    }>{trace}</error>
                   case TStatus.Error => <error message={"No Exception or message provided"}/>
-                                                     case TStatus.Failure if (e.throwable.isDefined)=> <failure message={ e.throwable.get.getMessage } type={ e.throwable.get.getClass.getName }>{ trace }</failure>
+                  case TStatus.Failure if (e.throwable.isDefined) =>
+                    <failure message={e.throwable.get.getMessage} type={
+                      e.throwable.get.getClass.getName
+                    }>{trace}</failure>
                   case TStatus.Failure                                     => <failure message={"No Exception or message provided"}/>
                   case TStatus.Ignored | TStatus.Skipped | TStatus.Pending => <skipped/>
                   case _                                                   => {}

testing/src/main/scala/sbt/TestFramework.scala

@@ -272,7 +272,11 @@ object TestFramework {
   private[this] def withContextLoader[T](loader: ClassLoader)(eval: => T): T = {
     val oldLoader = Thread.currentThread.getContextClassLoader
     Thread.currentThread.setContextClassLoader(loader)
-    try { eval } finally { Thread.currentThread.setContextClassLoader(oldLoader) }
+    try {
+      eval
+    } finally {
+      Thread.currentThread.setContextClassLoader(oldLoader)
+    }
   }
   @deprecated("1.3.0", "This has been replaced by the ClassLoaders.test task.")
   def createTestLoader(