请教大佬一个问题, 在项目文件夹里面, 如果直接用`node bin/cli fly in sky`来查词会报错, 百思不得其解, 详情见内容.

[zhoujin7]

环境信息

• 系统及版本: Windows 10 1909
• Node 版本: nodejs 12.18.4
• 终端软件及版本: cmd
• EazyDict 版本: 2.1.0

问题描述:

在bin/cli里面的如下代码加一句console.log(argus);, 如果直接用node bin/cli fly in sky来查词会报错.

/**
 * 主程序
 */
program
  .usage('<words...>')
  .description('简单易用的命令行词典 https://github.com/keenwon/eazydict')
  .option('-s, --save', '查询单词，同时保存到生词本')
  .option('-r, --raw', '不转换为小写，查询原始的输入值')
  .action(function (...argus) {
    // 在这里加一句打印argus
    console.log(argus);
    const words = argus.slice(0, -1);
    const options = {
      save: program.save || false,
      raw: program.raw || false
    };

    lookup(words, options);
  });

直接用node bin/cli fly in sky来查词, 输出的argus如下:

[
  Command {
    _events: [Object: null prototype] {
      'option:save': [Function],
      'option:raw': [Function],
      '--help': [Function]
    },
    _eventsCount: 3,
    _maxListeners: undefined,
    commands: [
      [Command],
      [Command],
      [Command],
      [Command],
      [Command],
      [Command],
      [Command]
    ],
    options: [ [Option], [Option] ],
    parent: null,
    _allowUnknownOption: false,
    _args: [],
    rawArgs: [
      'C:\\Users\\jin7\\scoop\\apps\\nodejs-lts\\current\\node.exe',
      'C:\\development\\jsdev\\eazydict-origin\\bin\\cli',
      'fly',
      'in',
      'sky'
    ],
    _scriptPath: 'C:\\development\\jsdev\\eazydict-origin\\bin\\cli',
    _name: 'cli',
    _optionValues: {},
    _storeOptionsAsProperties: true,
    _storeOptionsAsPropertiesCalled: false,
    _passCommandToAction: true,
    _actionResults: [],
    _actionHandler: [Function: listener],
    _executableHandler: false,
    _executableFile: null,
    _defaultCommandName: null,
    _exitCallback: null,
    _aliases: [],
    _combineFlagAndOptionalValue: true,
    _hidden: false,
    _hasHelpOption: true,
    _helpFlags: '-h, --help',
    _helpDescription: 'display help for command',
    _helpShortFlag: '-h',
    _helpLongFlag: '--help',
    _hasImplicitHelpCommand: false,
    _helpCommandName: 'help',
    _helpCommandnameAndArgs: 'help [command]',
    _helpCommandDescription: 'display help for command',
    program: [Circular],
    Command: [class Command extends EventEmitter],
    Option: [class Option],
    CommanderError: [class CommanderError extends Error],
    _usage: '<words...>',
    _description: '简单易用的命令行词典 https://github.com/keenwon/eazydict',
    _argsDescription: undefined,
    args: [ 'fly', 'in', 'sky' ],
    [Symbol(kCapture)]: false
  },
  [ 'fly', 'in', 'sky' ]
]

通过npm install -g eazydict安装的, 用eazydict fly in sky来查词, 输出的argus如下:

[
  'fly',
  'in',
  'sky',
  Command {
    commands: [
      [Command],
      [Command],
      [Command],
      [Command],
      [Command],
      [Command],
      [Command]
    ],
    options: [ [Option], [Option] ],
    _execs: {},
    _allowUnknownOption: false,
    _args: [],
    _name: 'cli',
    Command: [Function: Command],
    Option: [Function: Option],
    _usage: '<words...>',
    _description: '简单易用的命令行词典 https://github.com/keenwon/eazydict',
    _argsDescription: undefined,
    _events: [Object: null prototype] {
      'option:save': [Function],
      'option:raw': [Function],
      'command:*': [Function: listener],
      'command:lookup': [Function: listener],
      'command:l': [Function: listener],
      'command:version': [Function: listener],
      'command:v': [Function: listener],
      'command:history': [Function: listener],
      'command:h': [Function: listener],
      'command:save': [Function: listener],
      'command:s': [Function: listener],
      'command:install': [Function: listener],
      'command:i': [Function: listener],
      'command:wordbook': [Function: listener],
      'command:w': [Function: listener],
      'command:status': [Function: listener],
      '--help': [Function]
    },
    _eventsCount: 17,
    rawArgs: [
      'C:\\Users\\jin7\\scoop\\apps\\nodejs-lts\\current\\node.exe',
      'C:\\Users\\jin7\\scoop\\apps\\nodejs-lts\\current\\bin\\node_modules\\eazydict\\bin\\cli',
      'fly',
      'in',
      'sky'
    ],
    args: [ 'fly', 'in', 'sky', [Circular] ]
  }
]

百思不得其解, 不知道为什么会这样? 直接在项目文件夹里面用node bin/cli fly in sky来查词, 输出argus和全局安装的不同.
我看了commander的文档, 也不知道为何.
原谅我是菜鸟, 愿意打赏一下大佬.

[Keenwon]

用 git bash 试一试，有错误信息发出来

[zhoujin7]

报错信息:

(node:1476) UnhandledPromiseRejectionWarning: TypeError: word.trim is not a function
    at C:\development\jsdev\eazydict-origin\src\lookup.js:24:23
    at Array.map (<anonymous>)
    at lookup (C:\development\jsdev\eazydict-origin\src\lookup.js:24:6)
    at Command.<anonymous> (C:\development\jsdev\eazydict-origin\bin\cli:31:5)
    at Command.listener [as _actionHandler] (C:\development\jsdev\eazydict-origin\node_mod
ules\commander\index.js:426:31)
    at Command._parseCommand (C:\development\jsdev\eazydict-origin\node_modules\commander\
index.js:1002:14)
    at Command.parse (C:\development\jsdev\eazydict-origin\node_modules\commander\index.js
:801:10)
    at Object.<anonymous> (C:\development\jsdev\eazydict-origin\bin\cli:151:9)
    at Module._compile (internal/modules/cjs/loader.js:1137:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
(node:1476) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error orig
inated either by throwing inside of an async function without a catch block, or by rejecti
ng a promise which was not handled with .catch(). To terminate the node process on unhandl
ed promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs
.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:1476) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In
the future, promise rejections that are not handled will terminate the Node.js process wit
h a non-zero exit code.

[Keenwon]

估计是 commander 升级造成的，cli 要重写下

[zhoujin7]

难怪了 我才注意到这个
const words = argus.slice(0, -1);改成这样就行了const words = argus[1];