protobuf.js/scripts/bundle.js

module.exports = bundle;

var path       = require("path");

var browserify = require("browserify");

var header     = require("gulp-header");
var gulpif     = require("gulp-if");
var sourcemaps = require("gulp-sourcemaps");
var uglify     = require("gulp-uglify");
var gutil      = require("gulp-util");

var buffer     = require("vinyl-buffer");
var vinylfs    = require("vinyl-fs");
var source     = require("vinyl-source-stream");

var pkg = require(__dirname + "/../package.json");
var license = [
    "/*!",
    " * protobuf.js v${version} (c) 2016, Daniel Wirtz",
    " * Compiled ${date}",
    " * Licensed under the BSD-3-Clause License",
    " * see: https://github.com/dcodeIO/protobuf.js for details",
    " */"
].join("\n") + "\n";

function bundle(compress, runtime) {
    var src = runtime
        ? path.join(__dirname, "..", "runtime")
        : path.join(__dirname, "..", "src");
    var dst = runtime
        ? path.join(__dirname, "..", "dist", "runtime")
        : path.join(__dirname, "..", "dist");

    var bundler = browserify({
        entries: src,
        debug: true
    })
    return bundler
    .external("long")
    .exclude("process")
    .exclude("_process")
    .plugin(require("bundle-collapser/plugin"))
    .bundle()
    .pipe(source(compress ? "protobuf.min.js" : "protobuf.js"))
    .pipe(buffer())
    .pipe(sourcemaps.init({ loadMaps: true }))
            .pipe(
                gulpif(compress, uglify({
                    mangleProperties: {
                        regex: /^_/
                    }
                }))
            )
            .pipe(header(license, {
                date: (new Date()).toUTCString().replace("GMT", "UTC"),
                version: pkg.version
            }))
    .pipe(sourcemaps.write(".", { sourceRoot: "" }))
    .pipe(vinylfs.dest(dst))
    .on("log", gutil.log)
    .on("error", gutil.log);
}

var fs     = require("fs");
var zopfli = require("node-zopfli");

bundle.compress = function compress(sourceFile, destinationFile, callback) {
    var src = fs.createReadStream(sourceFile);
    var dst = fs.createWriteStream(destinationFile);
    src.on("error", callback);
    dst.on("error", callback);
    dst.on("close", function() {
        callback(null);
    });
    src.pipe(zopfli.createGzip()).pipe(dst);
};