Generation of pubspec.yaml file

tool/generate_pubspec.dart

@@ -0,0 +1,25 @@
+import 'dart:io';
+
+const pubspecBasePath = 'pubspec_base.yaml';
+const pubspecDescriptionPath = 'pubspec_description.yaml';
+const outputPubspecPath = 'pubspec.yaml';
+
+Future<void> main(List<String> args) async {
+  final pubspecBase = File(pubspecBasePath);
+  final pubspecDescription = File(pubspecDescriptionPath);
+
+  if (!pubspecBase.existsSync() || !pubspecDescription.existsSync()) {
+    throw('$pubspecBasePath or $pubspecDescriptionPath doesn't exists');
+  }
+
+  final pubspecBaseContent = await pubspecBase.readAsString();
+  final pubspecDescriptionContent = await pubspecDescription.readAsString();
+  final pubSpecContent =  pubspecDescriptionContent + '\n\n' + pubspecBaseContent;
+  final outputPubspec = File(outputPubspecPath);
+
+  if (outputPubspec.existsSync()) {
+    await outputPubspec.delete();
+  }
+
+  await outputPubspec.writeAsString(pubSpecContent);
+}