exception handling update

lib/oto/application.dart

@@ -58,7 +58,7 @@ class Application {
       await CLI.printString(e.toString(), color: Color.redStrong);
       await CLI.printString(stacktace.toString(), color: Color.yellowStrong);
       await printBuildStep('Build Failed', Color.redStrong);
-      return;
+      exit(10);
     }
 
     await printBuildStep('Build Successfully Complete', Color.cyan);

lib/oto/build/build_dart.dart

@@ -38,6 +38,6 @@ class BuildDart extends Command {
         workspace: workspace, enableStderr: false);
 
     return await complete(await process.process.exitCode, command,
-        errorMessage: process.stderr.toString(), passCode: [0, 64]);
+        errorMessage: process.stderr.toString());
   }
 }

lib/oto/command.dart

@@ -129,7 +129,8 @@ abstract class Command {
     if (passCode.contains(exitCode)) {
       return simpleFuture;
     } else {
-      var data = ExcpetionData();
+      print('Exit Code: $exitCode');
+      var data = ExceptionData();
       data.phase = command.name;
       data.message = errorMessage;
       throw Exception(data);
@@ -148,7 +149,14 @@ class SimpleCommand extends Command {
   }
 }
 
-class ExcpetionData {
+class ExceptionData {
   String? phase;
   String? message;
+
+  @override
+  String toString() {
+    var str = ' [$phase]\n\n';
+    str += message ??= '';
+    return str;
+  }
 }