[英]Dart Package Management via dart2js
I'm learning Dart and its dependency manager pub
and am having a tough time seeing the "forest through the trees" here. 我正在学习Dart及其依赖经理
pub
,我很难看到这里的“穿越树林”。
Say I want to use Polymer.dart in my project. 假设我想在我的项目中使用Polymer.dart 。 So, in my project root, I create the following
pubspec.yaml
: 所以,在我的项目根目录中,我创建了以下
pubspec.yaml
:
name: test_dart
description: A sample web application
dependencies:
browser: any
polymer: ">=0.9.0 <0.10.0"
I then run pub get
, which goes to the pub
repo and fetches the browser
and polymer
dependencies that I've specified. 然后我运行
pub get
,它进入pub
repo并获取我指定的browser
和polymer
依赖项。 It then creates a packages
directory in my project root, which now means I have a project that looks like: 然后它在我的项目根目录中创建一个
packages
目录,这意味着我有一个看起来像这样的项目:
MyDartProject/
pubspec.yaml
myapp.dart
packages/
browser/
...
...all the packages that ship with Polymer
Now I start coding my Dart web app ( myapp.dart
), which will references various Polymer and browser
types/functions/etc. 现在我开始编写我的Dart Web应用程序(
myapp.dart
),它将引用各种Polymer和browser
类型/函数/等。 in its source code. 在其源代码中。
When I'm all done, I want to create a JavaScript file called myapp.js
. 当我完成后,我想创建一个名为
myapp.js
的JavaScript文件。
According to the dart2js
docs , I need to run something like: 根据
dart2js
文档 ,我需要运行如下:
dart2js --out=myapp.js --package-root=??? myapp.dart
How do I include all the browser & polymer packages on the buildpath? 如何在构建路径中包含所有浏览器和聚合物包?
There is a "pub build" option now. 现在有一个“pub build”选项。
http://pub.dartlang.org/doc/pub-build.html http://pub.dartlang.org/doc/pub-build.html
Use pub build when you're ready to deploy your web app.
准备好部署Web应用程序时使用pub build。 When you run pub build, it generates the assets for the current package and all of its dependencies, putting them into a new directory named build.
当您运行pub build时,它会为当前包及其所有依赖项生成资产,并将它们放入名为build的新目录中。
$ cd ~/dart/helloworld
$ pub build
Building helloworld......
Built 5 files!
If the build directory already exists, pub build deletes it and then creates it again. 如果构建目录已存在,pub构建将删除它,然后再次创建它。
That should do everything you are after here. 这应该是你在这里做的一切。 You can also launch it from the IDE by right clicking on the pubspec.yaml file and choose "pub build"
您也可以通过右键单击pubspec.yaml文件从IDE启动它并选择“pub build”
EDIT: You should also see the links in zoechi's answer. 编辑:您还应该看到zoechi的答案中的链接。
If you run dart2js from your MyDartProject
directory you don't have to provide --package-root
parameter. 如果从
MyDartProject
目录运行dart2js,则不必提供--package-root
参数。
An alternative way is running pub build
. 另一种方法是运行
pub build
。 If you use Polymer you need to add a transformers
section. 如果使用Polymer,则需要添加
transformers
部分。
see also 也可以看看
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