Quietened tsc output w.r.t. typing issues (#166)

Putting an empty array as compilerOptions types and typeRoots speeds up tsc a lot and removes tons of type checking warnings/errors (we do not care for types there anyway).
Also filtered the remaining stacktrace (if any) for tsc error codes.

src/main/scala/io/shiftleft/js2cpg/preprocessing/TypescriptTranspiler.scala

@@ -22,6 +22,9 @@ object TypescriptTranspiler {
 
   val DEFAULT_MODULE: String = COMMONJS
 
+  private val tscTypingWarnings =
+    List("error TS", ".d.ts", "The file is in the program because", "Entry point of type library")
+
 }
 
 class TypescriptTranspiler(override val config: Config, override val projectPath: Path, subDir: Option[Path] = None)
@@ -69,8 +72,12 @@ class TypescriptTranspiler(override val config: Config, override val projectPath
       val content = FileUtils.readLinesInFile(customTsConfigFilePath).mkString("\n")
       val mapper  = new ObjectMapper()
       val json    = mapper.readTree(PackageJsonParser.removeComments(content))
+      Option(json.get("compilerOptions")).foreach { options =>
+        options.asInstanceOf[ObjectNode].remove("sourceRoot")
+        options.asInstanceOf[ObjectNode].putArray("types")
+        options.asInstanceOf[ObjectNode].putArray("typeRoots")
+      }
       // --include is not available as tsc CLI argument; we set it manually:
-      Option(json.get("compilerOptions")).foreach(_.asInstanceOf[ObjectNode].remove("sourceRoot"))
       json.asInstanceOf[ObjectNode].putArray("include").add("**/*")
       val customTsConfigFile =
         File
@@ -100,6 +107,9 @@ class TypescriptTranspiler(override val config: Config, override val projectPath
     }
   }
 
+  private def isCleanTrace(exception: Throwable): Boolean =
+    exception.getMessage.linesIterator.forall(l => TypescriptTranspiler.tscTypingWarnings.exists(l.contains))
+
   override protected def transpile(tmpTranspileDir: Path): Boolean = {
     if (installTsPlugins()) {
       File.usingTemporaryDirectory() { tmpForIgnoredDirs =>
@@ -142,14 +152,18 @@ class TypescriptTranspiler(override val config: Config, override val projectPath
             else ""
 
           val command =
-            s"${ExternalCommand.toOSCommand(tsc)} -sourcemap $sourceRoot --outDir $projOutDir -t ES2017 -m $module --jsx react --noEmit false $projCommand"
+            s"${ExternalCommand.toOSCommand(tsc)} --skipLibCheck -sourcemap $sourceRoot --outDir $projOutDir -t ES2017 -m $module --jsx react --noEmit false $projCommand"
           logger.debug(
             s"\t+ TypeScript compiling $projectPath $projCommand to $projOutDir (using $module style modules)"
           )
 
           ExternalCommand.run(command, projectPath.toString, extraEnv = NODE_OPTIONS) match {
-            case Success(_)         => logger.debug("\t+ TypeScript compiling finished")
-            case Failure(exception) => logger.debug("\t- TypeScript compiling failed", exception)
+            case Success(_) =>
+              logger.debug("\t+ TypeScript compiling finished")
+            case Failure(exception) if isCleanTrace(exception) =>
+              logger.debug("\t+ TypeScript compiling finished")
+            case Failure(exception) =>
+              logger.debug(s"\t- TypeScript compiling failed: $exception")
           }
         }