Scala 3 support (#836)

* update build

* update exerices build

* fix compile errors

* reformat and restructure testgen

* port word-count

* remove old test-gens

* fix exercises

* fix sgf, sieve and linked list exercise

* update docs

* update about page

Author: grzegorz-bielski

.gitignore

@@ -2,6 +2,7 @@
 *.swp
 .DS_Store
 .idea
+.vscode
 tmp
 target/
 bin/configlet
@@ -13,9 +14,11 @@ bin/configlet.exe
 .bloop/
 .metals/
 
-project/
+project/*
 !project/build.properties
 !project/plugins.sbt
 project/target
 src/test/scala/project/
 target
+
+generated

.scalafmt.conf

@@ -0,0 +1,9 @@
+version = "3.8.2"
+align.preset = most
+maxColumn = 160
+trailingCommas = always
+continuationIndent.callSite = 2
+continuationIndent.defnSite = 2
+runner.dialect = scala3
+rewrite.scala3.convertToNewSyntax = yes
+rewrite.scala3.removeOptionalBraces = yes

README.md

@@ -0,0 +1,22 @@
+name := "ExcercismScalaTestGenerator"
+
+ThisBuild / scalaVersion := "3.4.2"
+ThisBuild / scalacOptions ++= Seq("-source:future")
+
+lazy val root = project
+  .in(file("."))
+  .aggregate(testgen)
+
+lazy val testgen = project
+  .enablePlugins(SbtTwirl)
+  .settings(
+    Compile / TwirlKeys.compileTemplates / sourceDirectories
+        += (baseDirectory.value.getParentFile / "src" / "main" / "twirl")
+    )
+  .settings(
+    libraryDependencies += "org.playframework" %% "play-json" % "3.0.4",
+    libraryDependencies += "org.playframework.twirl" %% "twirl-api" % "2.0.7",
+    libraryDependencies += "org.scala-lang.modules" %% "scala-parser-combinators" % "2.4.0",
+    libraryDependencies += "org.apache.commons" % "commons-lang3" % "3.15.0"
+  )
+

build.sbt

@@ -1,3 +1,3 @@
-scalaVersion := "2.13.6"
+scalaVersion := "3.4.2"
 
-libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.10" % "test"
+libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.19" % Test