yarn init

交互式创建或更新 package.json 文件。

yarn init

这个命令通过交互式会话带你创建一个 package.json 文件。 一些默认值比如 license 和初始版本可以在 yarn 的 init-* 配置里找到。

这是一个在名为 testdir 的目录里运行命令的例子：

$ yarn init

question name (testdir): my-awesome-package
question version (1.0.0): 
question description: The best package you will ever find.
question entry point (index.js): 
question git repository: https://github.com/yarnpkg/example-yarn-package
question author: Yarn Contributor
question license (MIT): 
success Saved package.json
✨  Done in 87.70s.

这导致下面的 package.json：

{
  "name": "my-awesome-package",
  "version": "1.0.0",
  "description": "The best package you will ever find.",
  "main": "index.js",
  "repository": {
    "url": "https://github.com/yarnpkg/example-yarn-package",
    "type": "git"
  },
  "author": "Yarn Contributor",
  "license": "MIT"
}

如果你已经有一个现成的 package.json，它会用这个文件的条目作为默认值。

现有下面的 package.json：

{
  "name": "my-existing-package",
  "version": "0.1",
  "description": "I exist therefore I am.",
  "repository": {
    "url": "https://github.com/yarnpkg/example-yarn-package",
    "type": "git"
  },
  "license": "BSD-2-Clause"
}

下面交互式会话期间默认值的结果：

$ yarn init

question name (my-existing-package): 
question version (0.1): 
question description (I exist therefore I am.):
question entry point (index.js): 
question git repository (https://github.com/yarnpkg/example-yarn-package): 
question author: Yarn Contributor
question license (BSD-2-Clause): 
success Saved package.json
✨  Done in 121.53s.
为 yarn init 设置默认值

下面的 config 变量可被用于自定义 yarn init 的默认值：

  • init-author-name
  • init-author-email
  • init-author-url
  • init-version
  • init-license
yarn init --yes/-y

这个命令跳过上面提到的交互式会话，并生成一个基于你的默认值的 package.json。 一些默认值可以被上面提到的 init-* 配置改变。 例如，给定一个全新安装的 Yarn 并在一个 yarn-example 目录里：

$ yarn init --yes

warning The yes flag has been set. This will automatically answer yes to all questions which may have security implications.
success Saved package.json
✨  Done in 0.09s.

这会生成下面的 package.json：

{
  "name": "yarn-example",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT"
}
← yarn info yarn install →