pubspec_manager #

pubspec_manager allows you to read, .modify and write pubspec.yaml files.

Why another pubspec.yaml manipulation file?

As a sometimes maintainer of the pubspec package and the creator of the fork pubspec2, I've long been unhappy with the usability and maintainability of the pubspec package.

There are also a number of other pubspec maintinance packages but none of them meet all of the criteria. In particualar none of them are able to preserve comments.

So the aim of pubspec_manager is to fix three problems

1. simplified API
2. fully type safe code base to ease maintenance
3. preservation of comments when modifying an existing pubspec.yaml
4. abiltity to modify every elment of a pubspec.yaml including comments.
5. retention of non pubspec specific content

The following examples shows how to create a new pubspec.yaml from scratch.

import 'dart:io';
import 'package:pubspec_manager/pubspec_manager.dart';

void main() {
  final pubspec =  PubSpec(
      name: 'new eric',
      version: '1.0.0-alpha.2',
      description: 'An example',
      environment: EnvironmentBuilder(sdk: '>3.0.0 <=4.0.0'),
    )
      ..documentation
          .set('https://onepub-web.flutter-io.cn')
          .comments
          .append('This is the doco')
      ..homepage
          .set('https://onepub-web.flutter-io.cn/home')
          .comments
          .append('The home page')
          .append('more')
      ..publishTo
          .set('https://onepub-web.flutter-io.cn/xxxxyyy')
          .comments
          .append('Publish to a private repo.')
          .append('more')
      ..issueTracker
          .set('https://onepub-web.flutter-io.cn/Issues')
          .comments
          .append('Log bugs here')
      ..repository
          .set('https://onepub-web.flutter-io.cn/Issues')
          .comments
          .append('The code is here')
      ..dependencies
          .append(DependencyAltHostedBuilder(
            name: 'dcli',
            hosted: 'https://onepub-web.flutter-io.cn',
            comments: const ['DCLI to do file system stuff', 'Hello world'],
          ))
          .append(
              DependencyPubHostedBuilder(name: 'dcli_core', version: '1.0.0'))
      ..devDependencies
          .append(
            DependencyPubHostedBuilder(
                comments: const ['hi there', 'ho there'],
                name: 'test',
                version: '1.0.0'),
          )
          .append(DependencyPubHostedBuilder(
            name: 'test_it',
            version: '1.0.0',
          ))
      ..save(filename: 'example.yaml');

  print(File(pubspec.loadedFrom).readAsStringSync());
}

update a version #

Updating a pubspec version is a common task:

  /// the the pubspec.yaml from local project directory
  final pubspec = PubSpec.load();
  pubspec.version.set('1.2.1');
  pubspec.save();