Update sbt-sourcegraph and re-enable SBT build tool tests

build.sbt

@@ -509,7 +509,10 @@ lazy val buildTools = project
       Map(
         "SCIP_JAVA_CLI" -> ((cli / pack).value / "bin" / "scip-java").toString
       ),
-    Test / fork := true
+    Test / fork := true,
+    // Our CI set up is a couple of measly vCPUs so parallelising tests there makes
+    // everything worse
+    Test / testForkedParallel := !sys.env.contains("CI")
   )
   .dependsOn(agent, unit)
 
@@ -564,11 +567,16 @@ lazy val javaOnlySettings = List[Def.Setting[_]](
   crossPaths := false
 )
 
-lazy val testSettings = List(
+val testSettings = List(
   (publish / skip) := true,
   autoScalaLibrary := true,
   testFrameworks := List(TestFrameworks.MUnit),
-  testOptions ++= List(Tests.Argument(TestFrameworks.MUnit, "-b")),
+  testOptions ++= {
+    if (!(Test / testForkedParallel).value)
+      List(Tests.Argument(TestFrameworks.MUnit, "-b"))
+    else
+      Nil
+  },
   libraryDependencies ++=
     List(
       "org.scalameta" %% "munit" % "0.7.29",

project/plugins.sbt

@@ -6,7 +6,7 @@ addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.6")
 addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.2.24")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.10.1")
 addSbtPlugin("com.thesamet" % "sbt-protoc" % "1.0.6")
-addSbtPlugin("com.sourcegraph" % "sbt-sourcegraph" % "0.4.0")
+addSbtPlugin("com.sourcegraph" % "sbt-sourcegraph" % "0.4.2")
 addSbtPlugin("com.lightbend.sbt" % "sbt-java-formatter" % "0.6.1")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.3")
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.15.0")

tests/buildTools/src/test/scala/tests/BaseBuildToolSuite.scala

@@ -21,6 +21,7 @@ import os.Shellable
 object Java8Only extends munit.Tag("Java8Only")
 
 abstract class BaseBuildToolSuite extends MopedSuite(ScipJava.app) {
+  self =>
   override def environmentVariables: Map[String, String] = sys.env
 
   def tags = List.empty[Tag]
@@ -49,8 +50,15 @@ abstract class BaseBuildToolSuite extends MopedSuite(ScipJava.app) {
   // NOTE(olafur): workaround for https://github.com/scalameta/moped/issues/18
   override val temporaryDirectory: DirectoryFixture =
     new DirectoryFixture {
-      private val path = BuildInfo.temporaryDirectory.toPath
-      override def apply(): Path = path
+      private val path = BuildInfo
+        .temporaryDirectory
+        .toPath
+        .resolve(self.getClass().getSimpleName())
+
+      override def apply(): Path = {
+        Files.createDirectories(path)
+        path
+      }
       override def beforeEach(context: BeforeEach): Unit = {
         DeleteVisitor.deleteRecursively(path)
       }

tests/buildTools/src/test/scala/tests/SbtBuildToolSuite.scala

@@ -1,17 +1,12 @@
 package tests
 
-import munit.IgnoreSuite
-
-// Ignored because the sbt-sourcegraph plugin adds the -build-tool:sbt flag, which
-// is yet not supported by any stable release of scip-java. We can un-ignore this
-// test suite after the next release.
-@IgnoreSuite
-class SbtBuildToolSuite extends BaseBuildToolSuite {
-  List("1.5.2", "0.13.17").foreach { version =>
+abstract class SbtBuildToolSuite(sbtVersion: String)
+    extends BaseBuildToolSuite {
+  List("2.11.9", "2.12.18", "2.13.11", "3.3.0").foreach { scalaVersion =>
     checkBuild(
-      s"basic-$version",
+      s"basic-sbt=$sbtVersion-scala=$scalaVersion",
       s"""|/build.sbt
-          |scalaVersion := "2.11.9"
+          |scalaVersion := "$scalaVersion"
           |libraryDependencies += "junit" % "junit" % "4.13.2"
           |/project/build.properties
           |sbt.version=1.5.2
@@ -25,16 +20,17 @@ class SbtBuildToolSuite extends BaseBuildToolSuite {
           |class ExampleScala()
           |/src/test/java/example/ExampleJavaSuite.java
           |package example;
-          |public class ExampleSuite {}
-          |/src/test/scala/example/ExampleScalaSuite.java
+          |public class ExampleJavaSuite {}
+          |/src/test/scala/example/ExampleaSuite.scala
           |package example
           |class ExampleSuite() {}
           |""".stripMargin,
       expectedSemanticdbFiles = 4,
-      expectedPackages =
-        """|maven:junit:junit:4.13.1
-           |""".stripMargin
+      targetRoot = Some("target")
     )
   }
 
 }
+
+class Sbt_1_BuildToolSuite extends SbtBuildToolSuite("1.5.2")
+class Sbt_013_BuildToolSuite extends SbtBuildToolSuite("0.13.17")