Commander

Complete solution for Node.js command-line interfaces.

Overview

Commander.js is a complete solution for Node.js command-line interface programs that takes inspiration from Ruby's commander.

Features

• Options with flags
• Required arguments
• Variadic arguments
• Automatic help generation
• Subcommands
• Git-style subcommands
• Custom event listeners

Getting Started

npm install commander

Basic Example

const { Command } = require('commander');
const program = new Command();

program
  .name('my-cli')
  .description('CLI to do some things')
  .version('1.0.0');

program
  .command('split')
  .description('Split a string into substrings')
  .argument('<string>', 'string to split')
  .option('--first', 'display just the first substring')
  .action((str, options) => {
    if (options.first) {
      console.log(str.split(',')[0]);
    } else {
      console.log(str);
    }
  });

program.parse();

PAPER-CODE Integration

PAPER-CODE provides:

• Commander.js project templates
• CLI structure patterns
• Testing frameworks
• Publishing configurations

Resources

• Commander.js Documentation
• npm package