gulpfile.js

var gulp = require("gulp");
var NwBuilder = require("nw-builder");
var os = require("os");
var del = require("del");
var zip = require("gulp-zip");
var unzip = require("gulp-unzip");
var gzip = require("gulp-gzip");
var tar = require("gulp-tar");
var download = require("gulp-download");
var package = require("./package.json");
var merge2 = require("merge2");

//Write function to detect current platform
function detectCurrentPlatform() {
  if (os.platform() === "win32") {
    return "win32";
  } else if (os.platform() === "linux") {
    return "linux64";
  } else if (os.platform() === "darwin") {
    return "mac64";
  }
}

//Commandline
var argv = require("yargs")
  .alias("p", "platforms")
  .options({
    nwversion: {
      alias: "nwv",
      describe: "Set nw.js version",
    },
    nwdownloadurl: {
      alias: "nwurl",
      describe: "Provide an alt download URL",
    },
  })
  .help().argv;

//Set Default nw.js version
var nwVersion = "0.44.1";
var buildDownloadUrl = "https://dl.nwjs.io/";

nwVersion = argv.nwv ? argv.nwv : nwVersion;
buildDownloadUrl = argv.nwurl ? argv.nwurl : buildDownloadUrl;

var buildplatforms = argv.p ? argv.p.split(",") : [detectCurrentPlatform()];

//Example URL FFMPEG Location:
//https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases/download/0.31.4/0.31.4-osx-x64.zip
var ffmpegDownloadurl =
  "https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases/download/" +
  nwVersion;

//Platform specific overrides if needed

if (buildplatforms.indexOf("linuxarm") >= 0) {
  nwVersion = "0.31.2";
}

if (buildplatforms.indexOf("linuxarm") >= 0) {
  buildDownloadUrl =
    "https://github.com/LeonardLaszlo/nw.js-armv7-binaries/releases/download/v0.27.6/nwjs-sdk-v0.27.6-linux-arm-chrome-branding.tar.gz";
}

var nw = new NwBuilder({
  files: [
    "./src/**",
    "./node_modules/**",
    "./package.json",
    "./install",
    "LICENSE.txt",
    "CHANGELOG.md",
    "README.md",
  ],
  version: nwVersion,
  zip: false,
  downloadUrl: buildDownloadUrl,
  platforms: buildplatforms,
});

gulp.task("run", function run() {
  nw.options.files = "./**";
  return nw.run().catch(function (error) {
    console.error(error);
  });
});

var buildTask = function () {
  return nw.build().catch(function (error) {
    console.error(error);
  });
};

var cleanTask = function () {
  var item = 0;

  buildplatforms.forEach((item) => {
    del("build/Popcorn-Time-CE/" + item + "/");
  });
  return del("build/Popcorn-Time-CE/" + item + "/");
};

var ffmpegcacheTask = function () {
  var cacheDir = "./cache/" + nwVersion + "-sdk";
  var downloadArray = merge2();
  var item = 0;

  buildplatforms.forEach((item) => {
    switch (item) {
      case "linux64":
        //Copy updated FFMPEG into the cache directory before building
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-linux-x64.zip")
            .pipe(unzip())
            .pipe(gulp.dest(cacheDir + "/" + item + "/lib")),
        );
        break;
      case "linux32":
        //Copy updated FFMPEG into the cache directory before building
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-linux-ia32.zip")
            .pipe(unzip())
            .pipe(gulp.dest(cacheDir + "/" + item + "/lib")),
        );
        break;
      case "win32":
        //Copy updated FFMPEG into the cache directory before building
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-win-ia32.zip")
            .pipe(unzip())
            .pipe(gulp.dest(cacheDir + "/" + item)),
        );
        break;
      case "win64":
        //Copy updated FFMPEG into the cache directory before building
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-win-x64.zip")
            .pipe(unzip())
            .pipe(gulp.dest(cacheDir + "/" + item)),
        );
        break;
      case "osx64":
        var fs = require("fs");
        var osxCachedir =
          "./cache/" + nwVersion + "-sdk/osx64/nwjs.app/Contents/Versions/";
        var files = fs.readdirSync(osxCachedir);
        if (files.length > 0) {
          osxCachedir =
            "./cache/" +
            nwVersion +
            "-sdk/osx64/nwjs.app/Contents/Versions/" +
            files[0];
        }
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-osx-x64.zip")
            .pipe(unzip())
            .pipe(gulp.dest(osxCachedir)),
        );
        break;
    }
  });

  return downloadArray;
};

var ffmpegbuildTask = function () {
  var downloadArray = merge2();
  var item = 0;
  buildplatforms.forEach((item) => {
    switch (item) {
      case "linux64":
        //Copy updated FFMPEG into the cache directory before building
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-linux-x64.zip")
            .pipe(unzip())
            .pipe(gulp.dest("./pre/" + item))
            .pipe(gulp.dest("./build/Popcorn-Time-CE/" + item + "/lib")),
        );
        break;
      case "linux32":
        //Copy updated FFMPEG into the cache directory before building
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-linux-ia32.zip")
            .pipe(unzip())
            .pipe(gulp.dest("./pre/" + item))
            .pipe(gulp.dest("./build/Popcorn-Time-CE/" + item + "/lib")),
        );
        break;
      case "win32":
        //Copy updated FFMPEG into the cache directory before building
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-win-ia32.zip")
            .pipe(unzip())
            .pipe(gulp.dest("./pre/" + item))
            .pipe(gulp.dest("./build/Popcorn-Time-CE/" + item)),
        );
        break;
      case "win64":
        //Copy updated FFMPEG into the cache directory before building
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-win-x64.zip")
            .pipe(unzip())
            .pipe(gulp.dest("./pre/" + item))
            .pipe(gulp.dest("./build/Popcorn-Time-CE/" + item)),
        );
        break;
      case "osx64":
        var fs = require("fs");
        var osxBuilddir =
          "./build/Popcorn-Time-CE/" +
          item +
          "/" +
          "Popcorn-Time-CE.app/Contents/Versions/";
        var files = fs.readdirSync(osxBuilddir);
        if (files.length > 0) {
          //osxCachedir = './cache/' + nwVersion + '-sdk/osx64/nwjs.app/Contents/Versions/' + files[0];
          osxBuilddir =
            "./build/Popcorn-Time-CE/" +
            item +
            "/" +
            "Popcorn-Time-CE.app/Contents/Versions/" +
            files[0];
        }
        //Copy updated FFMPEG into the cache directory before building
        //https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases/download/0.31.4/0.31.4-osx-x64.zip
        downloadArray.add(
          download(ffmpegDownloadurl + "/" + nwVersion + "-osx-x64.zip")
            .pipe(unzip())
            .pipe(gulp.dest("./pre/" + item))
            .pipe(gulp.dest(osxBuilddir)),
        );
        break;
    }
  });
  return downloadArray;
};

var zipTask = function () {
  var zipArray = merge2();

  buildplatforms.forEach((item) => {
    switch (item) {
      case "linux64":
        zipArray.add(
          gulp
            .src("./build/Popcorn-Time-CE/linux64/**")
            .pipe(tar("popcorn-time-ce_linux64_" + package.version + ".tar"))
            .pipe(gzip())
            .pipe(gulp.dest("./dist"))
            .on("end", function () {
              console.log("Build Zip Complete: " + item);
            }),
        );
        break;
      case "linux32":
        zipArray.add(
          gulp
            .src("./build/Popcorn-Time-CE/linux32/**")
            .pipe(tar("popcorn-time-ce_linux32_" + package.version + ".tar"))
            .pipe(gzip())
            .pipe(gulp.dest("./dist"))
            .on("end", function () {
              console.log("Build Zip Complete: " + item);
            }),
        );
        break;
      case "win32":
        zipArray.add(
          gulp
            .src("./build/Popcorn-Time-CE/win32/**")
            .pipe(zip("popcorn-time-ce_win32_" + package.version + ".zip"))
            .pipe(gulp.dest("./dist"))
            .on("end", function () {
              console.log("Build Zip Complete: " + item);
            }),
        );
        break;
      case "win64":
        zipArray.add(
          gulp
            .src("./build/Popcorn-Time-CE/win64/**")
            .pipe(zip("popcorn-time-ce_win64_" + package.version + ".zip"))
            .pipe(gulp.dest("./dist"))
            .on("end", function () {
              console.log("Build Zip Complete: " + item);
            }),
        );
        break;
      case "osx64":
        zipArray.add(
          gulp
            .src("./build/Popcorn-Time-CE/osx64/**")
            .pipe(zip("popcorn-time-ce_osx64_" + package.version + ".zip"))
            //.pipe(gzip())
            .pipe(gulp.dest("./dist"))
            .on("end", function () {
              console.log("Build Zip Complete: " + item);
            }),
        );
        break;
    }
  });

  return zipArray;
};

gulp.task("build", gulp.series(cleanTask, buildTask));

gulp.task("clean", cleanTask);

gulp.task("ffmpegbuild", ffmpegbuildTask);

gulp.task("ffmpegcache", ffmpegcacheTask);

gulp.task("zip", gulp.series(ffmpegbuildTask, zipTask));

gulp.task("default", function defaultTask() {
  // place code for your default task here
  console.log(nwVersion);
});