Nodejs command line, custom

First, the necessary plug-in

1. BABEL:ES6 syntax support, requires babel-perset-es2015 (convert to ES5 execution), Babel, Babel-core (program execution)

2. Commander: Custom Command Plug-in, provide parameter delivery, etc.

3. Liftoff: Implements input monitoring of the command window, as well as the command format specification.

4. Minimist: Read command line parameter plug-in

The above plugins can be installed directly via NPM.

Second, the sample code analysis:

2.1. Cli.js

var liftOff = require ("LiftOff");
Import app from "./app";
var argv = require ("Minimist") (Process.argv.slice (2));
var cli =new liftOff ({
    Name: "Sam",
    Processtitle: ' Samlong ',
    ModuleName: "Sam",
    extensions:{
        '. js ': null
    }
});
Cli.launch ({
    CWD:ARGV.R | | Argv.root,
    CONFIGPATH:ARGV.F | | Argv.file
},function (env) {
    Console.log ("command name:" + argv["_"]);
    Console.log ("Execution path:" + ENV.CWD);
    var commander = require (' Commander ');
    var _app = new app ();
    _app.register (commander);
});

1. Liftoff class: Parsing command-line arguments by importing liftoff third-party plug-ins, and capturing by liftoff instance method launch

2. Require ("Minimist") (Process.argv.slice (2)): Convert command-line arguments to Objects

3../app: Import command Execution class

2.2. App.js

class app{    Register (commander)    {        Commander            . Option ('-D--date ', "Show Time")            . Parse (PROCESS.ARGV);         if (commander.date) {            console.log (' Date command is executed ');        }     default APP;

A simple command execution class that is implemented through commander.

2.3. Index.js

Require ("Babel-core/register");//import Babel-core, used to convert my Es6require ("./src/app") in code; require ('./ Src/cli ');

2.4. Execution Effect:

Third, git address

[Email Protected]:cqhaibin/commandertest.git

Nodejs command line, custom