Cli: use varargs, remove unused methods

scalafmt-cli/jvm/src/main/scala/org/scalafmt/cli/CliUtils.scala

@@ -17,7 +17,6 @@ private[scalafmt] trait CliUtils {
         ),
       )
     val exit = Cli.mainWithOptions(
-      nGContext.getArgs,
       CliOptions.default.copy(common =
         CliOptions.default.common.copy(
           cwd = Some(workingDirectory),
@@ -26,6 +25,7 @@ private[scalafmt] trait CliUtils {
           err = nGContext.err,
         ),
       ),
+      nGContext.getArgs: _*,
     )
     nGContext.exit(exit.code)
   }

scalafmt-cli/jvm/src/test/scala/org/scalafmt/cli/CliOptionsJVMTest.scala

@@ -10,7 +10,7 @@ class CliOptionsJVMTest extends FunSuite {
 
   Seq("--stdin", "--stdout").foreach { arg =>
     test(s"don't write info when using $arg") {
-      val options = Cli.getConfig(Array(arg), baseCliOptionsWithOut).get
+      val options = Cli.getConfig(baseCliOptionsWithOut, arg).get
       val cons = System.console()
       if (cons ne null) options.common.info match {
         case x: Output.FromWriter if x.obj eq cons.writer() =>

scalafmt-cli/shared/src/main/scala/org/scalafmt/cli/Cli.scala

@@ -7,36 +7,21 @@ import java.nio.file.Paths
 
 import scala.io.Source
 import scala.util.Using
-import scala.util.control.NoStackTrace
 
 object Cli extends CliUtils {
 
-  private def throwIfError(exit: ExitCode): Unit = if (exit != ExitCode.Ok)
-    throw new RuntimeException(exit.toString) with NoStackTrace
-
   def main(args: Array[String]): Unit = {
-    val exit = mainWithOptions(args, CliOptions.default)
+    val exit = mainWithOptions(CliOptions.default, args: _*)
     sys.exit(exit.code)
   }
 
-  def exceptionThrowingMain(args: Array[String]): Unit =
-    exceptionThrowingMainWithOptions(args, CliOptions.default)
-
-  def exceptionThrowingMainWithOptions(
-      args: Array[String],
-      options: CliOptions,
-  ): Unit = {
-    val exit = mainWithOptions(args, options)
-    throwIfError(exit)
-  }
-
-  def mainWithOptions(args: Array[String], options: CliOptions): ExitCode =
-    getConfig(args, options) match {
+  def mainWithOptions(options: CliOptions, args: String*): ExitCode =
+    getConfig(options, args: _*) match {
       case Some(x) => run(x)
       case None => ExitCode.CommandLineArgumentError
     }
 
-  def getConfig(args: Array[String], init: CliOptions): Option[CliOptions] = {
+  def getConfig(init: CliOptions, args: String*): Option[CliOptions] = {
     val expandedArguments = expandArguments(args)
     CliArgParser.scoptParser.parse(expandedArguments, init).map(CliOptions.auto)
   }

scalafmt-cli/shared/src/test/scala/org/scalafmt/cli/CliOptionsTest.scala

@@ -108,7 +108,7 @@ class CliOptionsTest extends FunSuite {
   }
 
   test("write info to out if not writing to stdout") {
-    val options = Cli.getConfig(Array.empty[String], baseCliOptionsWithOut).get
+    val options = Cli.getConfig(baseCliOptionsWithOut).get
     assertEquals(options.common.info.printStream, System.out)
   }