Prepare the build for cross compilation

Moves `tests`, and `cli` source files to shared directory,
`dynamic` source files predominantly to the jvm directory and
also moves interfaces files to jvm folder (as they
are to be rewritten for Scala Native).

build.sbt

@@ -1,3 +1,5 @@
+import java.nio.file.Paths
+
 import Dependencies._
 import sbtcrossproject.CrossPlugin.autoImport.crossProject
 
@@ -50,37 +52,39 @@ commands += Command.command("ci-test") { s =>
     docsTest :: s
 }
 
-lazy val dynamic = project.in(file("scalafmt-dynamic")).settings(
-  moduleName := "scalafmt-dynamic",
-  description := "Implementation of scalafmt-interfaces",
-  buildInfoSettings,
-  buildInfoPackage := "org.scalafmt.dynamic",
-  buildInfoObject := "BuildInfo",
-  libraryDependencies ++= List(
-    "io.get-coursier" % "interface" % "0.0.17",
-    "com.typesafe" % "config" % "1.4.3",
-    munit.value % Test,
-    scalametaTestkit % Test,
-  ),
-  scalacOptions ++= scalacJvmOptions.value,
-).dependsOn(interfaces, sysops.jvm).dependsOn(core.jvm % "test")
+lazy val dynamic = crossProject(JVMPlatform).withoutSuffixFor(JVMPlatform)
+  .in(file("scalafmt-dynamic")).settings(
+    moduleName := "scalafmt-dynamic",
+    description := "Implementation of scalafmt-interfaces",
+    buildInfoSettings,
+    buildInfoPackage := "org.scalafmt.dynamic",
+    buildInfoObject := "BuildInfo",
+    libraryDependencies ++= List(
+      "io.get-coursier" % "interface" % "0.0.17",
+      "com.typesafe" % "config" % "1.4.3",
+      munit.value % Test,
+      scalametaTestkit % Test,
+    ),
+    scalacOptions ++= scalacJvmOptions.value,
+  ).dependsOn(interfaces, sysops).dependsOn(core % "test")
   .enablePlugins(BuildInfoPlugin)
 
-lazy val interfaces = project.in(file("scalafmt-interfaces")).settings(
-  moduleName := "scalafmt-interfaces",
-  description :=
-    "Dependency-free, pure Java public interfaces to integrate with Scalafmt through a build tool or editor plugin.",
-  crossVersion := CrossVersion.disabled,
-  autoScalaLibrary := false,
-  Compile / resourceGenerators += Def.task {
-    val out = (Compile / managedResourceDirectories).value.head /
-      "scalafmt.properties"
-    val props = new java.util.Properties()
-    props.put("version", version.value)
-    IO.write(props, "scalafmt properties", out)
-    List(out)
-  },
-)
+lazy val interfaces = crossProject(JVMPlatform).withoutSuffixFor(JVMPlatform)
+  .in(file("scalafmt-interfaces")).settings(
+    moduleName := "scalafmt-interfaces",
+    description :=
+      "Dependency-free, pure Java public interfaces to integrate with Scalafmt through a build tool or editor plugin.",
+    crossVersion := CrossVersion.disabled,
+    autoScalaLibrary := false,
+    Compile / resourceGenerators += Def.task {
+      val out = (Compile / managedResourceDirectories).value.head /
+        "scalafmt.properties"
+      val props = new java.util.Properties()
+      props.put("version", version.value)
+      IO.write(props, "scalafmt properties", out)
+      List(out)
+    },
+  )
 
 lazy val sysops = crossProject(JVMPlatform).withoutSuffixFor(JVMPlatform)
   .in(file("scalafmt-sysops")).settings(
@@ -161,51 +165,56 @@ val scalacJvmOptions = Def.setting {
   cross ++ unused
 }
 
-lazy val cli = project.in(file("scalafmt-cli")).settings(
-  moduleName := "scalafmt-cli",
-  assembly / mainClass := Some("org.scalafmt.cli.Cli"),
-  assembly / assemblyOption := (assembly / assemblyOption).value
-    .withPrependShellScript(Some(defaultUniversalScript(shebang = false))),
-  assembly / assemblyJarName := "scalafmt.jar",
-  assembly / assemblyMergeStrategy := {
-    case "reflect.properties" => MergeStrategy.first
-    case x =>
-      val oldStrategy = (assembly / assemblyMergeStrategy).value
-      oldStrategy(x)
-  },
-  libraryDependencies ++= Seq(
-    "org.scalameta" %% "munit-diff" % "1.0.2",
-    "com.martiansoftware" % "nailgun-server" % "0.9.1",
-    "com.github.scopt" %% "scopt" % "4.1.0",
-  ),
-  scalacOptions ++= scalacJvmOptions.value,
-  Compile / mainClass := Some("org.scalafmt.cli.Cli"),
-  nativeImageVersion := "22.3.0",
-  nativeImageInstalled := isCI,
-  nativeImageOptions ++= {
-    val isMusl = sys.env.get("NATIVE_IMAGE_MUSL").exists(_.toBoolean)
-    if (isMusl) Seq("--libc=musl") else Nil
-  },
-  nativeImageOptions ++= {
-    val isStatic = sys.env.get("NATIVE_IMAGE_STATIC").exists(_.toBoolean)
-    if (isStatic) Seq("--static") else Nil
-  },
-).dependsOn(coreJVM, dynamic).enablePlugins(NativeImagePlugin)
+lazy val cli = crossProject(JVMPlatform).withoutSuffixFor(JVMPlatform)
+  .in(file("scalafmt-cli")).settings(
+    moduleName := "scalafmt-cli",
+    assembly / mainClass := Some("org.scalafmt.cli.Cli"),
+    assembly / assemblyOption := (assembly / assemblyOption).value
+      .withPrependShellScript(Some(defaultUniversalScript(shebang = false))),
+    assembly / assemblyJarName := "scalafmt.jar",
+    assembly / assemblyMergeStrategy := {
+      case "reflect.properties" => MergeStrategy.first
+      case x =>
+        val oldStrategy = (assembly / assemblyMergeStrategy).value
+        oldStrategy(x)
+    },
+    libraryDependencies ++= Seq(
+      "org.scalameta" %% "munit-diff" % "1.0.2",
+      "com.martiansoftware" % "nailgun-server" % "0.9.1",
+      "com.github.scopt" %% "scopt" % "4.1.0",
+    ),
+    scalacOptions ++= scalacJvmOptions.value,
+    Compile / mainClass := Some("org.scalafmt.cli.Cli"),
+    nativeImageVersion := "22.3.0",
+    nativeImageInstalled := isCI,
+    nativeImageOptions ++= {
+      val isMusl = sys.env.get("NATIVE_IMAGE_MUSL").exists(_.toBoolean)
+      if (isMusl) Seq("--libc=musl") else Nil
+    },
+    nativeImageOptions ++= {
+      val isStatic = sys.env.get("NATIVE_IMAGE_STATIC").exists(_.toBoolean)
+      if (isStatic) Seq("--static") else Nil
+    },
+  ).dependsOn(core, dynamic).enablePlugins(NativeImagePlugin)
 
-lazy val tests = project.in(file("scalafmt-tests")).settings(
-  publish / skip := true,
-  libraryDependencies ++= Seq(
-    // Test dependencies
-    "com.lihaoyi" %% "scalatags" % "0.13.1",
-    scalametaTestkit,
-    munit.value,
-  ),
-  scalacOptions ++= scalacJvmOptions.value,
-  javaOptions += "-Dfile.encoding=UTF8",
-  buildInfoPackage := "org.scalafmt.tests",
-  buildInfoKeys :=
-    Seq[BuildInfoKey]("resourceDirectory" -> (Test / resourceDirectory).value),
-).enablePlugins(BuildInfoPlugin).dependsOn(coreJVM, dynamic, cli)
+lazy val tests = crossProject(JVMPlatform).withoutSuffixFor(JVMPlatform)
+  .in(file("scalafmt-tests")).settings(
+    publish / skip := true,
+    libraryDependencies ++= Seq(
+      // Test dependencies
+      "com.lihaoyi" %% "scalatags" % "0.13.1",
+      scalametaTestkit,
+      munit.value,
+    ),
+    scalacOptions ++= scalacJvmOptions.value,
+    javaOptions += "-Dfile.encoding=UTF8",
+    buildInfoPackage := "org.scalafmt.tests",
+    buildInfoKeys := Seq[BuildInfoKey]("resourceDirectory" -> {
+      val sharedTests = baseDirectory.value.getParentFile / "shared"
+      (Test / resourceDirectories).value
+        .find(_.toPath.startsWith(sharedTests.toPath)).get
+    }),
+  ).enablePlugins(BuildInfoPlugin).dependsOn(core, dynamic, cli)
 
 lazy val communityTests = project.in(file("scalafmt-tests-community")).settings(
   publish / skip := true,
@@ -246,7 +255,7 @@ lazy val docs = project.in(file("scalafmt-docs")).settings(
   crossScalaVersions := List(scala212),
   publish / skip := true,
   mdoc := (Compile / run).evaluated,
-).dependsOn(cli, dynamic).enablePlugins(DocusaurusPlugin)
+).dependsOn(cli.jvm, dynamic.jvm).enablePlugins(DocusaurusPlugin)
 
 val V = "\\d+\\.\\d+\\.\\d+"
 val ReleaseCandidate = s"($V-RC\\d+).*".r

docs/installation.md

@@ -502,7 +502,7 @@ handle parse and config errors.
 
 Here is an example how to extend `ScalafmtReporter`.
 
-```scala mdoc:file:scalafmt-dynamic/src/main/scala/org/scalafmt/dynamic/ConsoleScalafmtReporter.scala
+```scala mdoc:file:scalafmt-dynamic/jvm/src/main/scala/org/scalafmt/dynamic/ConsoleScalafmtReporter.scala
 
 ```