npm-scripts.js

/*
 * npm-scripts.js
 */

'use strict';

var exec = require('child_process').exec;
var fs = require('fs');
var path = require('path');
var util = require('util');

var commands = {
  prepublish: prepublish,
  postpublish: postpublish,
  preinstall: preinstall,
  postinstall: postinstall,
  preuninstall: preuninstall,
  postuninstall: postuninstall,
  preupdate: preupdate,
  postupdate: postupdate,
  prestart: prestart,
  poststart: poststart
};

var grey = function (text) {
  return '\x1B[90m' + text + '\x1B[39m';
}

// npm publish
function prepublish() {
  console.log(grey('npm prepublish script executed'));
}
function postpublish() {
  console.log(grey('npm postpublish script executed'));
}


// npm install
function preinstall() {
  console.log(grey('npm preinstall script executed'));
}
function postinstall() {
  console.log(grey('npm postinstall script executed'));
}

// npm uninstall
function preuninstall() {
  console.log(grey('npm preuninstall script executed'));
}
function postuninstall() {
  console.log(grey('npm postuninstall script executed'));
}

// npm update
function preupdate() {
  console.log(grey('npm preupdate script executed'));
}
function postupdate() {
  console.log(grey('npm postupdate script executed'));
}

// npm start
function prestart() {
  console.log(grey('npm prestart script executed'));
}
function poststart() {
  console.log(grey('npm poststart script executed'));
}

function usage() {
  console.error();
  console.error('  Usage:');
  console.error();
  Object.keys(commands).forEach(function (command) {
    console.error(grey(util.format('    node %s %s',
                  path.basename(__filename, '.js'),
                  command)));
  });
  console.error();
  process.exit(1);
}

function main() {
  if (process.argv.length !== 3 || !commands.hasOwnProperty(process.argv[2])) {
    usage();
  }
  commands[process.argv[2]]();
}



main();