electron.js

var fs = require("fs");
var ncp = require("ncp").ncp;
var packager = require("electron-packager");
var process = require("process");

var opts = {
  arch: "all",
  dir: "build/electron",
  platform: "all",
  out: "build",
  overwrite: "true",
  version: "0.37.1"
};

var packageJson = require("./package.json");
var electronPackageJson = {
  main: "main.js",
  name: packageJson.name,
  version: packageJson.version
};

ncp("build/html", "build/electron", function(err) {
  if (err) {
    console.error(err);
    process.exit(1);
  }

  ncp("electron", "build/electron", function(err) {
    if (err) {
      console.error(err);
      process.exit(2);
    }
    fs.writeFile("build/electron/package.json", JSON.stringify(electronPackageJson), function(err) {
      if (err) {
        console.error(err);
        process.exit(3);
      }
      packager(opts, function done(err) {
        if (err) {
          console.error(err);
          process.exit(4);
        }
      });
    });
  });
});