rename target setting to semanticdbTarget

Author: bishabosha

compiler/src/dotty/tools/dotc/config/ScalaSettings.scala

@@ -18,7 +18,7 @@ class ScalaSettings extends Settings.SettingGroup {
   val javaextdirs: Setting[String] = PathSetting("-javaextdirs", "Override java extdirs classpath.", Defaults.javaExtDirs) withAbbreviation "--java-extension-directories"
   val sourcepath: Setting[String] = PathSetting("-sourcepath", "Specify location(s) of source files.", Defaults.scalaSourcePath) withAbbreviation "--source-path"
   val sourceroot: Setting[String] = PathSetting("-sourceroot", "Specify workspace root directory", ".")
-  val targetroot: Setting[String] = PathSetting("-targetroot", "Specify output directory", "")
+  val semanticdbTarget: Setting[String] = PathSetting("-semanticdb-target", "Specify an alternative output directory for SemanticDB files", "")
 
   val classpath: Setting[String] = PathSetting("-classpath", "Specify where to find user class files.", defaultClasspath) withAbbreviation "-cp" withAbbreviation "--class-path"
   val outputDir: Setting[AbstractFile] = OutputSetting("-d", "directory|jar", "destination for generated classfiles.",

compiler/src/dotty/tools/dotc/semanticdb/ExtractSemanticDB.scala

@@ -582,14 +582,14 @@ object ExtractSemanticDB with
     def absolutePath(path: Path): Path = path.toAbsolutePath.normalize
     val sourcePath = absolutePath(source.file.jpath)
     val sourceRoot = absolutePath(Paths.get(ctx.settings.sourceroot.value))
-    val targetRoot =
-      val targetRootSetting = ctx.settings.targetroot.value
+    val semanticdbTarget =
+      val semanticdbTargetSetting = ctx.settings.semanticdbTarget.value
       absolutePath(
-        if targetRootSetting.isEmpty then ctx.settings.outputDir.value.jpath
-        else Paths.get(targetRootSetting)
+        if semanticdbTargetSetting.isEmpty then ctx.settings.outputDir.value.jpath
+        else Paths.get(semanticdbTargetSetting)
       )
     val relPath = sourceRoot.relativize(sourcePath)
-    val outpath = targetRoot
+    val outpath = semanticdbTarget
       .resolve("META-INF")
       .resolve("semanticdb")
       .resolve(relPath)