xnif.js

#!/usr/bin/env node

const args = process.argv.slice(2);

const [modfn, ...params] = args;

const [mod, fn] = modfn.split('.');

const Mod = require(mod);

const options = {};

for (let i = 0; i < params.length; ++i) {

  let param = params[i];

  let key, value;
  if (param.startsWith('--')) {
    param = param.slice(2);
    key = param;
    value = true;
  }

  if (param.includes(':')) {
    const [k, v] = param.split(':');
    key = k;
    value = v;
  }

  if (param.includes('=')) {
    const [k, v] = param.split('=');
    key = k;
    value = v;
  }

  if (key) {

    if (value === 'true') {
      value = true;
    }

    options[key] = value;
    delete params[i];
  }
}

console.log({ mod, fn, params, options });

Mod[fn](...params.filter(p => p), options, (err, result) => {

  if (err) {
    console.error(err);
    process.exit(1);
  }

  console.log(result);
});