Add a Scalafix migration for v0.5.0

build.sbt

@@ -1,70 +1,87 @@
 import com.typesafe.tools.mima.core._
 
-// Common settings
+ThisBuild / organization     := "io.github.davidgregory084"
+ThisBuild / organizationName := "David Gregory"
 
-name         := "sbt-tpolecat"
-description  := "scalac options for the enlightened"
-organization := "io.github.davidgregory084"
-
-organizationName := "David Gregory"
-startYear        := Some(2022)
-licenses += ("Apache-2.0", url("https://www.apache.org/licenses/LICENSE-2.0.html"))
-scmInfo := Some(
+ThisBuild / startYear := Some(2022)
+ThisBuild / licenses += ("Apache-2.0", url("https://www.apache.org/licenses/LICENSE-2.0.html"))
+ThisBuild / scmInfo := Some(
   ScmInfo(
     url("https://github.com/DavidGregory084/sbt-tpolecat"),
     "scm:git:git@github.com:DavidGregory084/sbt-tpolecat.git"
   )
 )
-developers := List(
+ThisBuild / developers := List(
   Developer(
     "DavidGregory084",
     "David Gregory",
     "davidgregory084@gmail.com",
     url("https://github.com/DavidGregory084")
   )
 )
-homepage := scmInfo.value.map(_.browseUrl)
-
-crossSbtVersions := Seq("1.6.2")
-
-enablePlugins(SbtPlugin)
-
-// License headers
 
-Compile / headerCreate := { (Compile / headerCreate).triggeredBy(Compile / compile).value }
-Test / headerCreate    := { (Test / headerCreate).triggeredBy(Test / compile).value }
-
-scalacOptions += "-Xlint:unused"
-
-libraryDependencies ++= Seq(
-  "org.scalatest"     %% "scalatest"       % "3.2.11"   % Test,
-  "org.scalacheck"    %% "scalacheck"      % "1.15.4"   % Test,
-  "org.scalatestplus" %% "scalacheck-1-15" % "3.2.11.0" % Test
-)
+ThisBuild / homepage := scmInfo.value.map(_.browseUrl)
 
 ThisBuild / semanticdbEnabled                              := true
 ThisBuild / semanticdbVersion                              := scalafixSemanticdb.revision
 ThisBuild / scalafixDependencies += "com.github.liancheng" %% "organize-imports" % "0.6.0"
 
 ThisBuild / versionScheme := Some(VersionScheme.EarlySemVer)
 
-mimaPreviousArtifacts := Set(
-  projectID.value.withRevision("0.4.0")
-)
-
-mimaBinaryIssueFilters ++= Seq(
-)
-
-// Testing
-
-scriptedBufferLog := false
+ThisBuild / crossSbtVersions := Seq("1.6.2")
+
+lazy val `sbt-tpolecat` = project
+  .in(file("."))
+  .aggregate(
+    `sbt-tpolecat-plugin`,
+    `sbt-tpolecat-scalafix`.rules,
+    `sbt-tpolecat-scalafix`.input,
+    `sbt-tpolecat-scalafix`.tests
+    /* TODO: change individual Scalafix project dependencies to `sbt-tpolecat-scalafix`.all when the package rename is in main;
+     * the Scalafix `output` project will not compile until the package renaming is done.
+     */
+  )
+  .settings(
+    publish                := {},
+    publishLocal           := {},
+    publishArtifact        := false,
+    publish / skip         := true,
+    mimaReportBinaryIssues := {}
+  )
 
-scriptedLaunchOpts := scriptedLaunchOpts.value ++ Seq(
-  "-Xmx1024M",
-  "-Dplugin.version=" + version.value
-)
+lazy val `sbt-tpolecat-plugin` = project
+  .in(file("plugin"))
+  .enablePlugins(SbtPlugin)
+  .settings(
+    name                   := "sbt-tpolecat",
+    moduleName             := "sbt-tpolecat",
+    description            := "scalac options for the enlightened",
+    Compile / headerCreate := { (Compile / headerCreate).triggeredBy(Compile / compile).value },
+    Test / headerCreate    := { (Test / headerCreate).triggeredBy(Test / compile).value },
+    scalacOptions += "-Xlint:unused",
+    libraryDependencies ++= Seq(
+      "org.scalatest"     %% "scalatest"       % "3.2.11"   % Test,
+      "org.scalacheck"    %% "scalacheck"      % "1.15.4"   % Test,
+      "org.scalatestplus" %% "scalacheck-1-15" % "3.2.11.0" % Test
+    ),
+    mimaPreviousArtifacts := Set(
+      projectID.value.withRevision("0.4.0").withExplicitArtifacts(Vector.empty)
+    ),
+    mimaBinaryIssueFilters ++= Seq(
+    ),
+    scriptedBufferLog := false,
+    scriptedLaunchOpts := scriptedLaunchOpts.value ++ Seq(
+      "-Xmx1024M",
+      "-Dplugin.version=" + version.value
+    ),
+    test := {
+      (Test / test).value
+      scripted.toTask("").value
+    }
+  )
 
-test := {
-  (Test / test).value
-  scripted.toTask("").value
-}
+lazy val `sbt-tpolecat-scalafix` = scalafixProject("sbt-tpolecat")
+  // TODO: Re-enable mimaReportBinaryIssues once the scalafix project is published
+  .rulesSettings(mimaReportBinaryIssues := {})
+  .inputSettings(libraryDependencies += (`sbt-tpolecat-plugin` / projectID).value.withRevision("0.4.0"))
+  .outputConfigure(_.dependsOn(`sbt-tpolecat-plugin`))

project/ScalafixProjectPlugin.scala

@@ -0,0 +1,141 @@
+import sbt._, Keys._
+
+import com.typesafe.tools.mima.plugin.MimaPlugin.autoImport._
+import de.heikoseeberger.sbtheader.HeaderPlugin.autoImport._
+import scalafix.sbt._
+import ScalafixPlugin.autoImport._
+import ScalafixTestkitPlugin.autoImport._
+
+object ScalafixProjectPlugin extends AutoPlugin {
+  object autoImport {
+    lazy val V                        = _root_.scalafix.sbt.BuildInfo
+    def scalafixProject(name: String) = ScalafixProject(name)
+  }
+}
+
+class ScalafixProject private (
+  val name: String,
+  val rules: Project,
+  val input: Project,
+  val output: Project,
+  val tests: Project
+) extends CompositeProject {
+
+  lazy val componentProjects = Seq(all, rules, input, output, tests)
+
+  lazy val all = Project(s"$name-scalafix", file(s"target/$name-scalafix-aggregate"))
+    .aggregate(rules, input, output, tests)
+    .settings(
+      publish                := {},
+      publishLocal           := {},
+      publishArtifact        := false,
+      publish / skip         := true,
+      mimaReportBinaryIssues := {}
+    )
+
+  def rulesSettings(ss: Def.SettingsDefinition*): ScalafixProject =
+    rulesConfigure(_.settings(ss: _*))
+
+  def inputSettings(ss: Def.SettingsDefinition*): ScalafixProject =
+    inputConfigure(_.settings(ss: _*))
+
+  def outputSettings(ss: Def.SettingsDefinition*): ScalafixProject =
+    outputConfigure(_.settings(ss: _*))
+
+  def testsSettings(ss: Def.SettingsDefinition*): ScalafixProject =
+    testsConfigure(_.settings(ss: _*))
+
+  def rulesConfigure(transforms: (Project => Project)*): ScalafixProject =
+    new ScalafixProject(
+      name,
+      rules.configure(transforms: _*),
+      input,
+      output,
+      tests
+    )
+
+  def inputConfigure(transforms: (Project => Project)*): ScalafixProject =
+    new ScalafixProject(
+      name,
+      rules,
+      input.configure(transforms: _*),
+      output,
+      tests
+    )
+
+  def outputConfigure(transforms: (Project => Project)*): ScalafixProject =
+    new ScalafixProject(
+      name,
+      rules,
+      input,
+      output.configure(transforms: _*),
+      tests
+    )
+
+  def testsConfigure(transforms: (Project => Project)*): ScalafixProject =
+    new ScalafixProject(
+      name,
+      rules,
+      input,
+      output,
+      tests.configure(transforms: _*)
+    )
+
+}
+
+object ScalafixProject {
+  def apply(name: String): ScalafixProject = {
+
+    lazy val rules = Project(s"$name-scalafix-rules", file(s"scalafix/rules"))
+      .settings(
+        moduleName := s"$name-scalafix",
+        libraryDependencies += "ch.epfl.scala" %% "scalafix-core" % _root_.scalafix.sbt.BuildInfo.scalafixVersion
+      )
+
+    lazy val input = Project(s"$name-scalafix-input", file(s"scalafix/input"))
+      .settings(
+        headerSources / excludeFilter := AllPassFilter,
+        scalacOptions ~= { opts => opts.filterNot(Set("-Xfatal-warnings", "-Werror")) }
+      )
+      .settings(
+        publish                := {},
+        publishLocal           := {},
+        publishArtifact        := false,
+        publish / skip         := true,
+        mimaReportBinaryIssues := {}
+      )
+
+    lazy val output = Project(s"$name-scalafix-output", file(s"scalafix/output"))
+      .settings(
+        headerSources / excludeFilter := AllPassFilter,
+        scalacOptions ~= { opts => opts.filterNot(Set("-Xfatal-warnings", "-Werror")) }
+      )
+      .settings(
+        publish                := {},
+        publishLocal           := {},
+        publishArtifact        := false,
+        publish / skip         := true,
+        mimaReportBinaryIssues := {}
+      )
+
+    lazy val tests = Project(s"$name-scalafix-tests", file(s"scalafix/tests"))
+      .settings(
+        scalafixTestkitOutputSourceDirectories := (output / Compile / unmanagedSourceDirectories).value,
+        scalafixTestkitInputSourceDirectories := (input / Compile / unmanagedSourceDirectories).value,
+        scalafixTestkitInputClasspath     := (input / Compile / fullClasspath).value,
+        scalafixTestkitInputScalacOptions := (input / Compile / scalacOptions).value,
+        scalafixTestkitInputScalaVersion  := (input / Compile / scalaVersion).value
+      )
+      .dependsOn(rules)
+      .enablePlugins(ScalafixTestkitPlugin)
+      .settings(
+        publish                := {},
+        publishLocal           := {},
+        publishArtifact        := false,
+        publish / skip         := true,
+        mimaReportBinaryIssues := {}
+      )
+
+    new ScalafixProject(name, rules, input, output, tests)
+  }
+}

project/plugins.sbt

@@ -6,6 +6,6 @@ addSbtPlugin("com.timushev.sbt" % "sbt-updates" % "0.6.2")
 
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.6")
 
-addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.34")
+addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.10.1")
 
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.0.1")

scalafix/input/src/main/scala/org/typelevel/fix/v0_5Tests.scala

@@ -0,0 +1,9 @@
+/*
+rule = v0_5
+*/
+import io.github.davidgregory084.TpolecatPlugin
+import io.github.davidgregory084._
+import _root_.io.github.davidgregory084.ScalacOption
+import _root_.io.github.davidgregory084._
+
+object Tests

scalafix/output/src/main/scala/org/typelevel/fix/v0_5Tests.scala

@@ -0,0 +1,6 @@
+import org.typelevel.sbt.tpolecat.TpolecatPlugin
+import org.typelevel.sbt.tpolecat._
+import _root_.org.typelevel.sbt.tpolecat.ScalacOption
+import _root_.org.typelevel.sbt.tpolecat._
+
+object Tests

scalafix/rules/src/main/resources/META-INF/services/scalafix.v1.Rule

@@ -0,0 +1 @@
+org.typelevel.fix.v0_5

scalafix/rules/src/main/scala/org/typelevel/fix/v0_5.scala

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2022 David Gregory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.typelevel.fix
+
+import scalafix.v1._
+import scala.meta._
+
+class v0_5 extends SyntacticRule("v0_5") {
+  override def fix(implicit doc: SyntacticDocument): Patch =
+    doc.tree.collect {
+      case Importer(ref , _) if ref.toString == "io.github.davidgregory084" =>
+        Patch.replaceTree(ref, "org.typelevel.sbt.tpolecat")
+      case Importer(ref, _) if ref.toString == "_root_.io.github.davidgregory084" =>
+        Patch.replaceTree(ref, "_root_.org.typelevel.sbt.tpolecat")
+    }.asPatch
+}

scalafix/tests/src/test/scala/org/typelevel/fix/RuleSuite.scala

@@ -0,0 +1,8 @@
+package org.typelevel.fix
+
+import scalafix.testkit._
+import org.scalatest.FunSuiteLike
+
+class RuleSuite extends AbstractSemanticRuleSuite with FunSuiteLike {
+  runAllTests()
+}