npm包的制作与发布使用

制作npm包的步骤

1. 注册npm账户

   npm adduser
   

   或者登陆npm官网注册

2. 登陆npm账户

   npm login
   

3. 编写npm包

   • 初始化package.json并配置

   npm init
   

   {
       "name": "包名",
       "version": "版本号",
       "description": "描述",
       "main": "入口文件",
       "scripts": {
           "test": "配置测试"
       },
       // 配置git仓库
       "repository": {
           "type": "git",
           "url": "git仓库地址"
       },
       "keywords": [
           "关键字"
       ],
       "author": "",
       "license": "MIT",
       "dependencies": {
       }
   }
   

4. 发布

   npm publish
   # 指定标签beta
   npm publish --tag beta
   

5. 删除

   npm unpublish --force 包名
   

6. 命令行工具包的制作

   {
       "name": "工具名称",
       "version": "版本号",
       "description": "描述",
       "bin": {
           "命令名称": "命令入口文件"
       },
       "author": "zengyuwen",
       "license": "MIT"
   }
   

   代码编写

   #!/usr/bin/env node
   // 获取命令行参数
   const arguments = process.argv.splice(2);
   

代码示例

命令行工具

• package.json

  {
      "name": "cli",
      "version": "1.0.0",
      "description": "",
      "main": "index.js",
      "scripts": {
          "test": "echo \"Error: no test specified\" && exit 1"
      },
      "bin": {
          "my-cli": "./index.js"
      },
      "author": "",
      "license": "ISC"
  }
  

• index.js

  #!/usr/bin/env node
  // 获取命令行参数
  const arguments = process.argv.splice(2);
  // 参数解析成数组
  function parse(arguments) {
      return arguments.map(function(value) {
          if (/^-+/.test(value)) {
              return value.replace(/^-+/, '');
          }
          return value;
      });
  }
  // 参数解析成键值对
  function parseObj(arguments) {
      let result = [];
      for (let i = 0;i < arguments.length; i+= 2) {
          tmp = {};
          if ((i + 1) >= arguments.length) {
              tmp[arguments[i].replace(/^-+/, '')] = null;
          } else {
              tmp[arguments[i].replace(/^-+/, '')] = arguments[i+1];
          }
          result.push(tmp);
      }
      return result;
  }
  // 求和
  function add(arguments) {
      var params = parse(arguments);
      var result = 0;
      for (let i of params) {
          if (/^[0-9]{1,}$/.test(i)) {
              result += parseInt(i);
          }
      }
      return result;
  }
  console.log(parseObj(arguments));
  console.log(add(arguments));