Add possibility to change files names

Author: ThomasEcalle

example/lib/main.dart

@@ -1,4 +1,4 @@
-import 'package:travel_app/screens/home.dart';
+import 'package:travel_app_package/screens/home.dart';
 import 'package:flutter/material.dart';
 
 void main() => runApp(MyApp());

example/lib/screens/home.dart

@@ -1,4 +1,4 @@
-import 'package:travel_app/widgets/awesome_widget.dart';
+import 'package:travel_app_package/widgets/awesome_widget.dart';
 import 'package:flutter/material.dart';
 
 class Home extends StatelessWidget {

example/pubspec.yaml

@@ -1,4 +1,4 @@
-name: travel_app
+name: travel_app_package
 description: A new Flutter application.
 
 # The following defines the version and build number for your application.
@@ -33,7 +33,7 @@ dev_dependencies:
 
 flutter_rename_app:
   application_name: Travel app
-  dart_package_name: travel_app
+  dart_package_name: travel_app_package
   application_id: com.android.travel
   bundle_id: com.ios.travel
   android_package_name: com.android.travel
@@ -64,7 +64,7 @@ flutter:
   # in this "flutter" section. Each entry in this list should have a
   # "family" key with the font family name, and a "fonts" key with a
   # list giving the asset and other descriptors for the font. For
-  # travel_app:
+  # travel_app_package:
   # fonts:
   #   - family: Schyler
   #     fonts:

example/test/widget_test.dart

@@ -1,14 +1,14 @@
 // This is a basic Flutter widget test.
 //
 // To perform an interaction with a widget in your test, use the WidgetTester
-// utility that Flutter provides. For travel_app, you can send tap and scroll
+// utility that Flutter provides. For travel_app_package, you can send tap and scroll
 // gestures. You can also use WidgetTester to find child widgets in the widget
 // tree, read text, and verify that the values of widget properties are correct.
 
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:travel_app/main.dart';
+import 'package:travel_app_package/main.dart';
 
 void main() {
   testWidgets('Counter increments smoke test', (WidgetTester tester) async {

lib/src/changes/files_to_modify_name.dart

@@ -0,0 +1,14 @@
+import 'package:flutter_rename_app/src/models/config.dart';
+import 'package:flutter_rename_app/src/models/required_change.dart';
+
+List<RequiredChange> getFilesToModifyName(
+  Config config,
+) {
+  return [
+    RequiredChange(
+      regexp: RegExp(config.oldDartPackageName),
+      replacement: config.newDartPackageName,
+      paths: ["android/${config.oldDartPackageName}_android.iml"],
+    ),
+  ];
+}

lib/src/flutter_rename_app.dart

@@ -2,6 +2,7 @@ library flutter_rename_app;
 
 import 'dart:io';
 
+import 'package:flutter_rename_app/src/changes/files_to_modify_name.dart';
 import 'package:flutter_rename_app/src/utils/logger.dart';
 import 'package:process_run/shell_run.dart';
 
@@ -29,8 +30,11 @@ renameApp() async {
     Logger.info("Current app android package name = ${config.oldAndroidPackageName}");
     Logger.info("New app android package name: ${config.newAndroidPackageName}");
 
-    final List<RequiredChange> requiredChanges = getFilesToModifyContent(config);
-    _applyContentChanges(requiredChanges);
+    final List<RequiredChange> contentChanges = getFilesToModifyContent(config);
+    _applyContentChanges(contentChanges);
+
+    final List<RequiredChange> nameChanges = getFilesToModifyName(config);
+    _applyNameChanges(nameChanges);
 
     Logger.newLine();
     Logger.newLine();
@@ -70,14 +74,33 @@ _changeAllImportsIn(String directoryPath, Config config) async {
   }
 }
 
+_applyNameChanges(List<RequiredChange> requiredChanges) async {
+  await Future.forEach(requiredChanges, (RequiredChange change) async {
+    for (final path in change.paths) {
+      await _changeFileName(path, change.regexp, change.replacement);
+    }
+  });
+}
+
 _applyContentChanges(List<RequiredChange> requiredChanges) async {
   await Future.forEach(requiredChanges, (RequiredChange change) async {
-    for (var path in change.paths) {
+    for (final path in change.paths) {
       await _changeContentInFile(path, change.regexp, change.replacement);
     }
   });
 }
 
+_changeFileName(String filePath, RegExp regexp, String replacement) async {
+  if (filePath.contains(regexp)) {
+    try {
+      final File file = File(filePath);
+      file.rename(filePath.replaceAll(regexp, replacement));
+    } on FileSystemException {
+      Logger.error("File $filePath does not exist on this project");
+    }
+  }
+}
+
 _changeContentInFile(String filePath, RegExp regexp, String replacement) async {
   try {
     final File file = File(filePath);