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devexamples

Commander Git-Style Subcommand CLI

Build a git-style CLI with Commander using nested subcommands, variadic arguments, option conflict rules, and typed hook-driven configuration.

JavascriptNodeCli Tooling

Code

snippet
import { Command } from 'commander';

const program = new Command();
program.name('deployctl').description('deployment control tool').version('2.1.0');

program
  .command('deploy <env>')
  .description('deploy current build to target environment')
  .option('-r, --release <version>', 'pin a specific release version')
  .option('--dry-run', 'print plan without executing')
  .option('-f, --force', 'skip confirmation prompts')
  .addOption(
    new program.Option('-q, --quiet', 'suppress output').conflicts('force'),
  )
  .action(async (env, options) => {
    const plan = { env, release: options.release ?? 'latest', force: options.force };
    console.log('deploying', JSON.stringify(plan));
  });

program
  .command('rollback <env> [revisions...]')
  .description('roll back one or more revisions')
  .action((env, revisions) => {
    console.log('rolling back', env, revisions.length, 'revision(s)');
  });

program.parseAsync(process.argv);

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