Add formatOutput param to jsonPartBuilder

Mirrors param in source_gen PartBuilder

Author: kevmoo

json_serializable/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.5.5
+
+* Added named `formatOutput` parameter to `jsonPartBuilder`.
+
 ## 0.5.4
 
 * Add `checked` configuration option. If `true`, generated `fromJson` functions

json_serializable/lib/src/json_part_builder.dart

@@ -15,16 +15,20 @@ import 'json_serializable_generator.dart';
 /// If `null`, the content of [defaultFileHeader] is used.
 /// If [header] is an empty `String` no header is added.
 ///
+/// [formatOutput] is called to format the generated code. If not provided,
+/// the default Dart code formatter is used.
+///
 /// For details on [useWrappers], [anyMap], and [checked] see
 /// [JsonSerializableGenerator].
 Builder jsonPartBuilder(
     {String header,
+    String formatOutput(String code),
     bool useWrappers: false,
     bool anyMap: false,
     bool checked: false}) {
   return new PartBuilder([
     new JsonSerializableGenerator(
         useWrappers: useWrappers, anyMap: anyMap, checked: checked),
     const JsonLiteralGenerator()
-  ], header: header);
+  ], header: header, formatOutput: formatOutput);
 }

json_serializable/tool/build.dart

@@ -14,12 +14,24 @@ import 'package:json_serializable/src/json_part_builder.dart' as jpb;
 import 'builder.dart';
 
 Builder _jsonPartBuilder(
-        {bool useWrappers: false, bool anyMap: false, bool checked: false}) =>
-    jpb.jsonPartBuilder(
-        header: copyrightHeader,
-        useWrappers: useWrappers,
-        anyMap: anyMap,
-        checked: checked);
+    {bool useWrappers: false,
+    bool anyMap: false,
+    bool checked: false,
+    bool format}) {
+  format ??= true;
+  String Function(String code) formatOutput;
+
+  if (!format) {
+    formatOutput = (s) => s;
+  }
+
+  return jpb.jsonPartBuilder(
+      header: copyrightHeader,
+      formatOutput: formatOutput,
+      useWrappers: useWrappers,
+      anyMap: anyMap,
+      checked: checked);
+}
 
 final List<BuilderApplication> builders = [
   applyToRoot(nonNull(),