grind.dart

import 'package:collection/collection.dart';
import 'package:grinder/grinder.dart';

void main(List<String> args) => grind(args);

@Task('Open Upgraded Package Changelog')
void openUpgradedPackageChangelog() {
  _openUpgradedPackageChangelog(
    [
      '.',
      'packages/admin',
      'packages/xxx_common',
    ],
  );
}

void _openUpgradedPackageChangelog(List<String> directories) {
  final packageRegex = RegExp(r'\s*name: (.+)[.\s\S]+?\+    version: "(.+)"');
  final preReleaseRegex = RegExp(r'\d+\.\d+.\d+-.+');
  final urls = Set.of(
    directories.map((directory) {
      final diff = run(
        'git',
        arguments: [
          'diff',
          './$directory/pubspec.lock',
        ],
      );

      return packageRegex.allMatches(diff).map((match) {
        final texts = match.groups([1, 2]);
        final name = texts[0]!;
        final version = texts[1]!;
        final versionAdjusted = version.replaceAll(RegExp(r'\.|\+'), '');
        final isPreRelease = preReleaseRegex.firstMatch(version) != null;
        final preReleasePath = isPreRelease ? '/versions/$version' : '';
        return 'https://pub.dev/packages/$name$preReleasePath/changelog#$versionAdjusted';
      });
    }).expand((e) => e),
  );

  for (final url in urls) {
    run('open', arguments: [url]);
  }
}

Example log

  open https://pub.dev/packages/firebase_auth/changelog#313
  open https://pub.dev/packages/firebase_auth_web/changelog#312
  open https://pub.dev/packages/firebase_crashlytics/changelog#223
  open https://pub.dev/packages/firebase_storage/changelog#1005
  open https://pub.dev/packages/flutter_riverpod/versions/1.0.0-dev.11/changelog#100-dev11
  open https://pub.dev/packages/freezed/changelog#01501
  open https://pub.dev/packages/google_sign_in_platform_interface/changelog#210
  open https://pub.dev/packages/hooks_riverpod/versions/1.0.0-dev.11/changelog#100-dev11
  open https://pub.dev/packages/material_design_icons_flutter/changelog#506295
  open https://pub.dev/packages/riverpod/versions/1.0.0-dev.10/changelog#100-dev10
  open https://pub.dev/packages/share_plus/changelog#302
  open https://pub.dev/packages/firestore_ref/changelog#01241