Clean up unused, undeclared, and conflicting dependencies

build.sbt

@@ -14,49 +14,61 @@ addCommandAlias("ci-publish", ";github; ci-release")
 
 lazy val V = new {
   val cats: String                = "2.7.0"
-  val collectioncompat: String    = "2.6.0"
+  val catsEffect: String          = "3.3.4"
   val github4s: String            = "0.30.0"
   val http4s: String              = "0.23.8"
   val runtime: String             = "0.7.0"
+  val sbtIO                       = "1.6.0"
   val scala: String               = "2.13.8"
   val scala212: String            = "2.12.15"
   val scalacheck: String          = "1.15.4"
   val scalacheckShapeless: String = "1.3.0"
   val scalamacros: String         = "2.1.1"
   val scalariform: String         = "0.2.10"
-  val scalatest: String           = "3.2.10"
+  val scalatest: String           = "3.2.11"
+  val scalaXml: String            = "2.0.1"
+  val shapeless: String           = "2.3.7"
 }
 
 lazy val definitions = (project in file("definitions"))
   .settings(name := "definitions")
   .settings(
-    crossScalaVersions := Seq(V.scala212, V.scala),
+    crossScalaVersions := Seq(V.scala, V.scala212),
     libraryDependencies ++= Seq(
       "org.typelevel"              %% "cats-core"                 % V.cats,
-      "org.scalatest"              %% "scalatest"                 % V.scalatest,
       "org.scalacheck"             %% "scalacheck"                % V.scalacheck,
-      "com.github.alexarchambault" %% "scalacheck-shapeless_1.15" % V.scalacheckShapeless
-    )
+      "com.github.alexarchambault" %% "scalacheck-shapeless_1.15" % V.scalacheckShapeless,
+      "org.scalatest"              %% "scalatest-core"            % V.scalatest,
+      "com.chuusai"                %% "shapeless"                 % V.shapeless
+    ),
+    dependencyOverrides += "org.scala-lang.modules" %% "scala-xml" % "2.0.1"
   )
 
 lazy val compiler = (project in file("compiler"))
   .settings(name := "exercise-compiler")
   .settings(
     exportJars         := true,
-    crossScalaVersions := Seq(V.scala212, V.scala),
+    crossScalaVersions := Seq(V.scala, V.scala212),
     scalacOptions -= "-Xfatal-warnings",
     libraryDependencies ++= Seq(
-      "org.scala-exercises" %% "runtime" % V.runtime exclude ("org.scala-lang.modules", "scala-collection-compat"),
-      "org.scala-lang"          % "scala-compiler"          % scalaVersion.value,
-      "org.scala-lang.modules" %% "scala-collection-compat" % V.collectioncompat,
-      "org.typelevel"          %% "cats-core"               % V.cats      % Compile,
-      "org.http4s"             %% "http4s-blaze-client"     % V.http4s,
-      "org.http4s"             %% "http4s-circe"            % V.http4s,
-      "com.47deg"              %% "github4s"                % V.github4s,
-      "org.scalariform"        %% "scalariform"             % V.scalariform,
-      "org.typelevel"          %% "cats-laws"               % V.cats      % Test,
-      "org.scalatest"          %% "scalatest"               % V.scalatest % Test
-    )
+      "org.scala-exercises"    %% "runtime"             % V.runtime,
+      "org.scala-lang"          % "scala-compiler"      % scalaVersion.value,
+      "org.scala-lang"          % "scala-reflect"       % scalaVersion.value,
+      "org.scala-lang.modules" %% "scala-xml"           % V.scalaXml,
+      "org.typelevel"          %% "cats-core"           % V.cats      % Compile,
+      "org.http4s"             %% "http4s-blaze-client" % V.http4s,
+      "org.http4s"             %% "http4s-client"       % V.http4s,
+      "com.47deg"              %% "github4s"            % V.github4s,
+      "org.scalariform"        %% "scalariform"         % V.scalariform,
+      "org.typelevel"          %% "cats-kernel"         % V.cats,
+      "org.typelevel"          %% "cats-laws"           % V.cats      % Test,
+      "org.typelevel"          %% "cats-effect"         % V.catsEffect,
+      "org.typelevel"          %% "cats-effect-kernel"  % V.catsEffect,
+      "org.scalatest"          %% "scalatest-core"      % V.scalatest % Test,
+      "org.scalatest"          %% "scalatest"           % V.scalatest % Test
+    ),
+    dependencyOverrides += "org.scala-lang.modules" %% "scala-xml" % "2.0.1",
+    unusedCompileDependenciesFilter -= moduleFilter("org.scala-lang", "scala-compiler")
   )
   .dependsOn(definitions)
 
@@ -67,8 +79,26 @@ lazy val `sbt-exercise` = (project in file("sbt-exercise"))
   .settings(
     scalacOptions -= "-Xfatal-warnings",
     scalacOptions += "-Ypartial-unification",
-    libraryDependencies += "org.typelevel" %% "cats-core" % V.cats % Compile,
-    addCompilerPlugin("org.scalamacros" % "paradise" % V.scalamacros cross CrossVersion.full),
+    libraryDependencies ++= Seq(
+      "org.scala-sbt" %% "actions"                % sbtVersion.value,
+      "org.scala-sbt" %% "collections"            % sbtVersion.value,
+      "org.scala-sbt"  % "compiler-interface"     % sbtVersion.value,
+      "org.scala-sbt" %% "core-macros"            % sbtVersion.value,
+      "org.scala-sbt" %% "io"                     % V.sbtIO,
+      "org.scala-sbt" %% "librarymanagement-core" % sbtVersion.value,
+      "org.scala-sbt" %% "main"                   % sbtVersion.value,
+      "org.scala-sbt" %% "main-settings"          % sbtVersion.value,
+      "org.scala-sbt"  % "sbt"                    % sbtVersion.value,
+      "org.scala-sbt" %% "task-system"            % sbtVersion.value,
+      "org.scala-sbt" %% "util-logging"           % sbtVersion.value,
+      "org.scala-sbt" %% "util-position"          % sbtVersion.value,
+      "org.scala-sbt" %% "zinc-apiinfo"           % sbtVersion.value,
+      "org.scala-sbt" %% "zinc-classpath"         % sbtVersion.value,
+      "org.scala-sbt" %% "zinc-core"              % sbtVersion.value,
+      "org.typelevel" %% "cats-core"              % V.cats,
+      "org.typelevel" %% "cats-kernel"            % V.cats
+    ),
+    dependencyOverrides += "org.scala-lang.modules" %% "scala-xml" % "1.0.6",
     // Leverage build info to populate compiler classpath--
     compilerClasspath := { (compiler / Compile / fullClasspath) }.value,
     buildInfoObject   := "Meta",

compiler/src/main/scala/org/scalaexercises/exercises/compiler/SourceTextExtraction.scala

@@ -21,7 +21,6 @@ import java.io.File
 import org.scalaexercises.exercises.compiler.CompilerSettings
 
 import scala.annotation.tailrec
-import scala.collection.compat._
 import scala.reflect.internal.util.BatchSourceFile
 import scala.tools.nsc._
 import scala.tools.nsc.doc.{Settings => _, _}
@@ -91,7 +90,7 @@ class SourceTextExtraction {
       val rawImports = extraction.imports
       val paths      = rawImports.map(expandPath)
 
-      val imports = paths.groupBy(_._1).view.mapValues(_.map(_._2)).toMap
+      val imports = paths.groupBy(_._1).mapValues(_.map(_._2)).toMap
 
       val methods = extraction.methods.map(expandPath).map { case (k, v) =>
         lazy val methodImports = k

project/build.properties

@@ -1 +1 @@
-sbt.version=1.6.1
+sbt.version=1.6.1

project/plugins.sbt

@@ -1,10 +1,14 @@
-addSbtPlugin("com.eed3si9n"              % "sbt-buildinfo"            % "0.10.0")
-addSbtPlugin("org.scalameta"             % "sbt-mdoc"                 % "2.2.24")
-addSbtPlugin("org.scalameta"             % "sbt-scalafmt"             % "2.4.6")
-addSbtPlugin("com.github.sbt"            % "sbt-ci-release"           % "1.5.10")
-addSbtPlugin("de.heikoseeberger"         % "sbt-header"               % "5.6.0")
-addSbtPlugin("com.alejandrohdezma"       % "sbt-github"               % "0.11.2")
-addSbtPlugin("com.alejandrohdezma"       % "sbt-github-header"        % "0.11.2")
-addSbtPlugin("com.alejandrohdezma"       % "sbt-github-mdoc"          % "0.11.2")
-addSbtPlugin("com.alejandrohdezma"       % "sbt-remove-test-from-pom" % "0.1.0")
-addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat"             % "0.1.20")
+addSbtPlugin("com.eed3si9n"              % "sbt-buildinfo"             % "0.10.0")
+addSbtPlugin("org.scalameta"             % "sbt-mdoc"                  % "2.2.24")
+addSbtPlugin("org.scalameta"             % "sbt-scalafmt"              % "2.4.6")
+addSbtPlugin("com.github.sbt"            % "sbt-ci-release"            % "1.5.10")
+addSbtPlugin("de.heikoseeberger"         % "sbt-header"                % "5.6.0")
+addSbtPlugin("com.alejandrohdezma"       % "sbt-github"                % "0.11.2")
+addSbtPlugin("com.alejandrohdezma"       % "sbt-github-header"         % "0.11.2")
+addSbtPlugin("com.alejandrohdezma"       % "sbt-github-mdoc"           % "0.11.2")
+addSbtPlugin("com.alejandrohdezma"       % "sbt-remove-test-from-pom"  % "0.1.0")
+addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat"              % "0.1.20")
+addSbtPlugin("ch.epfl.scala"             % "sbt-missinglink"           % "0.3.3")
+addSbtPlugin("com.github.cb372"          % "sbt-explicit-dependencies" % "0.2.16")
+
+libraryDependencies += "com.spotify" % "missinglink-core" % "0.2.5"

sbt-exercise/src/sbt-test/sbt-exercise/basic/build.sbt

@@ -11,10 +11,11 @@ lazy val content = (project in file("content"))
       Resolver.defaultLocal
     ),
     libraryDependencies ++= Seq(
-      "org.scala-exercises" %% "runtime"           % "0.6.0",
+      "org.scala-exercises" %% "runtime"           % "0.7.0",
       "org.scala-exercises" %% "exercise-compiler" % pluginVersion changing (),
       "org.scala-exercises" %% "definitions"       % pluginVersion changing ()
-    )
+    ),
+    dependencyOverrides += "org.scala-lang.modules" %% "scala-xml" % "2.0.1"
   )
 
 lazy val contentInPackages = (project in file("contentinpackages"))
@@ -26,10 +27,11 @@ lazy val contentInPackages = (project in file("contentinpackages"))
       Resolver.defaultLocal
     ),
     libraryDependencies ++= Seq(
-      "org.scala-exercises" %% "runtime"           % "0.6.0",
+      "org.scala-exercises" %% "runtime"           % "0.7.0",
       "org.scala-exercises" %% "exercise-compiler" % pluginVersion changing (),
       "org.scala-exercises" %% "definitions"       % pluginVersion changing ()
-    )
+    ),
+    dependencyOverrides += "org.scala-lang.modules" %% "scala-xml" % "2.0.1"
   )
 
 lazy val check = (project in file("check"))
@@ -39,5 +41,6 @@ lazy val check = (project in file("check"))
     resolvers ++= Seq(
       Resolver.sonatypeRepo("snapshots"),
       Resolver.defaultLocal
-    )
+    ),
+    dependencyOverrides += "org.scala-lang.modules" %% "scala-xml" % "2.0.1"
   )

sbt-exercise/src/sbt-test/sbt-exercise/scalariform/build.sbt

@@ -9,6 +9,7 @@ lazy val root = (project in file("."))
     ),
     libraryDependencies ++= Seq(
       "org.scala-exercises" %% "exercise-compiler" % pluginVersion changing ()
-    )
+    ),
+    dependencyOverrides += "org.scala-lang.modules" %% "scala-xml" % "2.0.1"
   )
   .enablePlugins(ExerciseCompilerPlugin)