从Dart应用程序访问pubspec.yaml属性(版本) [英] Access to pubspec.yaml attributes (version) from Dart app
问题描述
是否可以访问该文件Dart应用程序中pubspec.yaml文件中列出的某些属性?
Is there any way to access some of the attributes listed in a pubspec.yaml file in that files Dart application?
特别是,在使用控制台应用程序时,在版本信息对话框中甚至在 --version中查看版本和描述属性可能非常有用。我还没有找到访问API的方法。我不确定Mirrors是否合适,但是如果将Web应用程序编译为JS,则在输出JS的任何地方都看不到该描述。
In particular, the version and description attributes may be quite useful to see in a version info dialog, or even a '--version' when using a console app. I haven't been able to find a way to access in the API. I'm not sure if Mirrors would have anything appropriate, but if a web app is compiled to JS, then I don't see the description anywhere in the output JS.
谢谢。
编辑
功能请求: https://code.google.com/p/dart/issues/detail?id=18769
推荐答案
您可以安装 dart_config软件包,并使用以下代码来解析pubspec.yaml文件:
you can install the "dart_config" package and use this code to parse a pubspec.yaml file:
import 'package:dart_config/default_server.dart';
import 'dart:async';
void main() {
Future<Map> conf = loadConfig("../pubspec.yaml");
conf.then((Map config) {
print(config['name']);
print(config['description']);
print(config['version']);
print(config['author']);
print(config['homepage']);
print(config['dependencies']);
});
}
输出类似于以下内容:
test_cli
A sample command-line application
0.0.1
Robert Hartung
URL
{dart_config: any}
编辑
您可以使用Yaml软件包本身进行操作:
You can do it with the Yaml package itself:
import 'package:yaml/yaml.dart';
import 'dart:io';
void main() {
File f = new File("../pubspec.yaml");
f.readAsString().then((String text) {
Map yaml = loadYaml(text);
print(yaml['name']);
print(yaml['description']);
print(yaml['version']);
print(yaml['author']);
print(yaml['homepage']);
print(yaml['dependencies']);
});
}
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