From dfb97cfe666a60b68399ca29205f0ad205bd641c Mon Sep 17 00:00:00 2001
From: Meriam Lachkar <meriam.lachkar@gmail.com>
Date: Wed, 12 May 2021 15:05:54 +0200
Subject: [PATCH] Add a migration rule to help migration to 0.9.28

---
 build.sbt                                     | 39 +++++++++++++++++++
 .../src/main/scala/fix/OldSemanticRule.scala  | 10 +++++
 .../src/main/scala/fix/OldSemanticRule.scala  |  8 ++++
 .../META-INF/services/scalafix.v1.Rule        |  1 +
 .../rules/src/main/scala/fix/v0_9_28.scala    | 22 +++++++++++
 .../tests/src/test/scala/fix/RuleSuite.scala  |  8 ++++
 6 files changed, 88 insertions(+)
 create mode 100644 migration/input/src/main/scala/fix/OldSemanticRule.scala
 create mode 100644 migration/output/src/main/scala/fix/OldSemanticRule.scala
 create mode 100644 migration/rules/src/main/resources/META-INF/services/scalafix.v1.Rule
 create mode 100644 migration/rules/src/main/scala/fix/v0_9_28.scala
 create mode 100644 migration/tests/src/test/scala/fix/RuleSuite.scala

diff --git a/build.sbt b/build.sbt
index 054868f1e..57e827bfc 100644
--- a/build.sbt
+++ b/build.sbt
@@ -277,3 +277,42 @@ lazy val docs = project
   .dependsOn(testkit, core, cli)
   .enablePlugins(DocusaurusPlugin)
   .disablePlugins(ScalafixPlugin)
+
+lazy val `migration-rules` = project
+  .in(file("migration/rules"))
+  .settings(
+    libraryDependencies += "ch.epfl.scala" %% "scalafix-core" % "0.9.27"
+  )
+
+lazy val `migration-input` = project
+  .in(file("migration/input"))
+  .settings(
+    (publish / skip) := true,
+    libraryDependencies += "ch.epfl.scala" % "scalafix-testkit" % "0.9.27" cross CrossVersion.full
+  )
+
+lazy val `migration-output` = project
+  .in(file("migration/output"))
+  .settings(
+    (publish / skip) := true,
+    libraryDependencies += "ch.epfl.scala" % "scalafix-testkit" % "0.9.27" cross CrossVersion.full
+  )
+
+lazy val `migration-tests` = project
+  .in(file("migration/tests"))
+  .settings(
+    (publish / skip) := true,
+    libraryDependencies += "ch.epfl.scala" % "scalafix-testkit" % "0.9.27" % Test cross CrossVersion.full,
+    (Compile / compile) :=
+      (Compile / compile)
+        .dependsOn((`migration-input` / Compile / compile))
+        .value,
+    scalafixTestkitOutputSourceDirectories :=
+      (`migration-output` / Compile / unmanagedSourceDirectories).value,
+    scalafixTestkitInputSourceDirectories :=
+      (`migration-input` / Compile / unmanagedSourceDirectories).value,
+    scalafixTestkitInputClasspath :=
+      (`migration-input` / Compile / fullClasspath).value
+  )
+  .dependsOn(`migration-rules`)
+  .enablePlugins(ScalafixTestkitPlugin)
diff --git a/migration/input/src/main/scala/fix/OldSemanticRule.scala b/migration/input/src/main/scala/fix/OldSemanticRule.scala
new file mode 100644
index 000000000..a9f2f1fc4
--- /dev/null
+++ b/migration/input/src/main/scala/fix/OldSemanticRule.scala
@@ -0,0 +1,10 @@
+/*
+rule = v0_9_28
+ */
+package fix
+
+import scalafix.testkit.SemanticRuleSuite
+
+class OldSemanticRule extends SemanticRuleSuite() {
+  runAllTests()
+}
diff --git a/migration/output/src/main/scala/fix/OldSemanticRule.scala b/migration/output/src/main/scala/fix/OldSemanticRule.scala
new file mode 100644
index 000000000..d70525666
--- /dev/null
+++ b/migration/output/src/main/scala/fix/OldSemanticRule.scala
@@ -0,0 +1,8 @@
+package fix
+
+import org.scalatest.FunSuiteLike
+import scalafix.testkit.AbstractSemanticRuleSuite
+
+class OldSemanticRule extends AbstractSemanticRuleSuite with FunSuiteLike {
+  runAllTests()
+}
diff --git a/migration/rules/src/main/resources/META-INF/services/scalafix.v1.Rule b/migration/rules/src/main/resources/META-INF/services/scalafix.v1.Rule
new file mode 100644
index 000000000..efb177540
--- /dev/null
+++ b/migration/rules/src/main/resources/META-INF/services/scalafix.v1.Rule
@@ -0,0 +1 @@
+fix.v0_9_28
diff --git a/migration/rules/src/main/scala/fix/v0_9_28.scala b/migration/rules/src/main/scala/fix/v0_9_28.scala
new file mode 100644
index 000000000..72db731a9
--- /dev/null
+++ b/migration/rules/src/main/scala/fix/v0_9_28.scala
@@ -0,0 +1,22 @@
+package fix
+
+import scala.meta._
+
+import scalafix.v1._
+
+class v0_9_28 extends SemanticRule("v0_9_28") {
+  override def fix(implicit doc: SemanticDocument): Patch =
+    doc.tree.collect {
+      case t @ Importee.Name(Name("SemanticRuleSuite")) =>
+        Patch.removeImportee(t) +
+          Patch.addGlobalImport(
+            importer"scalafix.testkit.AbstractSemanticRuleSuite"
+          )
+      case t @ Init(_, _, _) =>
+        if (t.toString() == "SemanticRuleSuite()")
+          Patch.addGlobalImport(importer"org.scalatest.FunSuiteLike") +
+            Patch.replaceTree(t, "AbstractSemanticRuleSuite") +
+            Patch.addRight(t, " with FunSuiteLike")
+        else Patch.empty
+    }.asPatch
+}
diff --git a/migration/tests/src/test/scala/fix/RuleSuite.scala b/migration/tests/src/test/scala/fix/RuleSuite.scala
new file mode 100644
index 000000000..22fb678da
--- /dev/null
+++ b/migration/tests/src/test/scala/fix/RuleSuite.scala
@@ -0,0 +1,8 @@
+package fix
+
+import org.scalatest.FunSuiteLike
+import scalafix.testkit.AbstractSemanticRuleSuite
+
+class RuleSuite extends AbstractSemanticRuleSuite with FunSuiteLike {
+  runAllTests()
+}