njt_prompt_mockup.js

const colors = {
  grey: 90,
  red: 31,
  yellow: 33,
  blue: 34,
  purple: 35,
  cyan: 36,
  white: 37,
};

function wrapColorFunc (color, bold) {
  bold = bold? 1 : 0;
  const prefix = '\u001B[' + bold + ';' + color + 'm';
  return function (str) {
    return str.split('\n').map(line => {
      if (!line.trim()) return line;
      return prefix + line + '\u001B[0;39m';
    }).join('\n');
  }
}

function wrapColorFuncs (color) {
  const func = wrapColorFunc(color);
  func.bold = wrapColorFunc(color, true);
  return func;
}

const c = {};
for (let color in colors) {
  c[color] = wrapColorFuncs(colors[color]);
}

console.log('\n',
  c.cyan('b '),c.blue('→'),c.white('package cost estimation on bundlephobia.com'),'\n',
  c.cyan('c '),c.blue('→'),c.white('changelog'),'\n',
  c.cyan('g '),c.blue('→'),c.white('github (gitlab, etc.) repository root'),'\n',
  c.cyan('h '),c.blue('→'),c.white('homepage'),'\n',
  c.cyan('i '),c.blue('→'),c.white('issues'),'\n',
  c.cyan('n '),c.blue('→'),c.white('package info on npmjs.com'),'\n',
  c.cyan('p '),c.blue('→'),c.white('pull requests'),'\n',
  c.cyan('pp'),c.blue('→'),c.white('package cost estimation on packagephobia'),'\n',
  c.cyan('r '),c.blue('→'),c.white('list of github releases'),'\n',
  c.cyan('s '),c.blue('→'),c.white('source (repository subdirectory in case of a monorepo)'),'\n',
  c.cyan('t '),c.blue('→'),c.white('list of git tags'),'\n',
  c.cyan('u '),c.blue('→'),c.white('package contents preview on unpkg.com'),'\n',
  c.cyan('v '),c.blue('→'),c.white('list of package versions with dates on npmjs.com'),'\n',
  c.cyan('y '),c.blue('→'),c.white('package page on yarnpkg.com'),'\n',
  c.cyan('. '),c.blue('→'),c.white('browse GitHub / GitLab code'),'\n'
);