refactor(update-version-script): update the script to generate the markdown files from a json file that contains the data to allow automate the CHANGELOG.md for the packages easier in CI, add a comment that indicate those files are generated.

scripts/regenerate_versions.dart

@@ -1,11 +1,12 @@
 // ignore_for_file: avoid_print
 
+import 'dart:convert' show jsonDecode, jsonEncode;
 import 'dart:io' show File, exit;
 
-import 'package:yaml_edit/yaml_edit.dart';
+import 'package:yaml_edit/yaml_edit.dart' show YamlEditor;
 
 /// The list of the packages that which will be used to update the `CHANGELOG.md`
-/// and `README.md` files for all the packages
+/// and the version in the `pubspec.yaml` for all the packages
 final _packages = [
   './',
   './dart_quill_delta',
@@ -15,51 +16,120 @@ final _packages = [
   './quill_pdf_converter',
 ];
 
+const _usage = 'Usage: ./script <version> <changelog-version-content>';
+
 /// A script that should run in the root folder and not inside any other folder
-/// it has one task, which update the version for `pubspec.yaml` and `CHANGELOG.md` for all the packages
-/// since we have only one CHANGELOG.md file and version, previously we had different `CHANGELOG.md` and `pubspec.yaml` package version
-/// for each package
+/// it has one task, which update the version for `pubspec.yaml` and
+/// `CHANGELOG.md` for all the packages, the `CHANGELOG.md` files will be
+/// generated from a json file which is the source of the data
+///
+/// the script can be used with the following args [_usage]
+/// it will require a version and the changes for that version (as a [String])
+/// if the version exist then it will modify it with the new changes
+/// if not, then will be added at the start
+///
+/// the source file (which used to generate the `CHANGELOG.md` files) will
+/// also updated with the new change
 ///
-/// the new version should be passed in the [args], the script accept only one argument
+/// this script designed to run in CI to automate the process of updating
+/// the package
 Future<void> main(List<String> args) async {
-  if (args.isEmpty) {
-    print('Missing required version argument. Usage: ./script <new-version>');
+  if (args.isEmpty || args.length < 2) {
+    print('Missing required arguments. $_usage');
     exit(1);
   }
-  if (args.length > 1) {
-    print('Too many arguments. Usage: ./script <new-version>');
+  if (args.length > 2) {
+    print('Too many arguments. $_usage');
     exit(1);
   }
-  final newVersion = args[0];
-  if (newVersion.isEmpty) {
-    print('The new version is empty. Usage: ./script <new-version>');
+  final passedVersion = args[0];
+  if (passedVersion.isEmpty) {
+    print('The version is empty. $_usage');
     exit(1);
   }
+  final passedVersionContent = args[1];
+  if (passedVersionContent.isEmpty) {
+    print('The version content is empty. $_usage');
+    exit(1);
+  }
+
+  // A file that will be used to build the `CHANGELOG.md` files
+  // the data format is in Json
+  final sourceChangeLogFile = File('./CHANGELOG.json');
+  await _replaceVersion(
+    sourceChangeLogFile: sourceChangeLogFile,
+    version: passedVersion,
+    versionContent: passedVersionContent,
+  );
+  final sourceChangeLog = jsonDecode(await sourceChangeLogFile.readAsString())
+      as Map<String, Object?>;
+  final generatedChangeLogBuffer = StringBuffer()
+    ..write(
+      '<!-- This file is auto-generated from ${sourceChangeLogFile.uri.pathSegments.last} using a script - Manual changes will be overwritten -->\n\n',
+    )
+    ..write('# Changelog\n\n')
+    ..write(
+      'All notable changes to this project will be documented in this file.\n\n',
+    );
+  sourceChangeLog.forEach((version, versionContent) {
+    generatedChangeLogBuffer
+      ..write('## $version\n\n')
+      ..write('$versionContent\n\n');
+  });
+
   for (final packagePath in _packages) {
-    await updatePubspecYamlFile('$packagePath/pubspec.yaml',
-        newVersion: newVersion);
-    if (packagePath != _packages.first) {
-      updateChangelogMD('$packagePath/CHANGELOG.md');
+    await _updatePubspecYamlFile(
+      pubspecYamlPath: '$packagePath/pubspec.yaml',
+      newVersion: passedVersion,
+    );
+    _updateChangelog(
+      changeLogFilePath: '$packagePath/CHANGELOG.md',
+      changeLogContent: generatedChangeLogBuffer.toString(),
+    );
+  }
 }
+
+/// Replace the version content by the version if it exist
+/// or add the version at the start of the map if it doesn't exist
+///
+/// then save the changes to the [sourceChangeLogFile]
+Future<void> _replaceVersion({
+  required File sourceChangeLogFile,
+  required String version,
+  required String versionContent,
+}) async {
+  final sourceChangeLog = jsonDecode(await sourceChangeLogFile.readAsString())
+      as Map<String, Object?>;
+  if (sourceChangeLog[version] != null) {
+    sourceChangeLog[version] = versionContent;
+  } else {
+    // A workaround to add the new item at the start, the order matter
+    // becase later it will generate the markdown files
+    final newMap = <String, Object?>{version: versionContent};
+    sourceChangeLog
+      ..forEach((key, value) => newMap[key] = value)
+      ..clear()
+      ..addAll(newMap);
   }
+  await sourceChangeLogFile.writeAsString(jsonEncode(sourceChangeLog));
 }
 
 /// Update the [pubspecYamlPath] file to update the `version` property from [newVersion]
-Future<void> updatePubspecYamlFile(
-  String pubspecYamlPath, {
+Future<void> _updatePubspecYamlFile({
+  required String pubspecYamlPath,
   required String newVersion,
 }) async {
   final file = File(pubspecYamlPath);
   final yaml = await file.readAsString();
   final yamlEditor = YamlEditor(yaml)..update(['version'], newVersion);
   await file.writeAsString(yamlEditor.toString());
-  print(yamlEditor.toString());
 }
 
-/// Read the contents of the root `CHANGELOG.md` file and copy it
-/// to the [changeLogFilePath]
-Future<void> updateChangelogMD(String changeLogFilePath) async {
-  final rootChangeLogFileContent = await File('./CHANGELOG.md').readAsString();
+/// Copy [changeLogContent] and overwrite it to the [changeLogFilePath]
+Future<void> _updateChangelog({
+  required String changeLogFilePath,
+  required String changeLogContent,
+}) async {
   final changeLogFile = File(changeLogFilePath);
-  await changeLogFile.writeAsString(rootChangeLogFileContent);
+  await changeLogFile.writeAsString(changeLogContent);
 }