Keep original typescript source maps after using browserify

Question

Background: I am compiling 2 dependent TypeScript files to js, which produces also source maps (one source map per file) using tsc 1.0

I\'m using -m commonjs

Answer 1

Here is my working solution:

var settings = {
  projectName : "test"
};    

gulp.task("bundle", function() {

  var mainTsFilePath = "src/main.ts";
  var outputFolder   = "bundle/src/";
  var outputFileName = settings.projectName + ".min.js";
  var pkg            = require("./package.json");

  var banner = [
    "/**",
    " * <%= pkg.name %> v.<%= pkg.version %> - <%= pkg.description %>",
    " * Copyright (c) 2015 <%= pkg.author %>",
    " * <%= pkg.license %>",
    " */", ""
  ].join("\n");

  var bundler = browserify({
    debug: true,
    standalone : settings.projectName
  });

  // TS compiler options are in tsconfig.json file
  return bundler.add(mainTsFilePath)
                .plugin(tsify)
                .bundle()
                .pipe(source(outputFileName))
                .pipe(buffer())
                .pipe(sourcemaps.init({ loadMaps: true }))
                .pipe(uglify())
                .pipe(header(banner, { pkg : pkg } ))
                .pipe(sourcemaps.write('./'))
                .pipe(gulp.dest(outputFolder));
});