gulpfile.js

// Copyright 2016 Frank Lin (lin.xiaoe.f@gmail.com). All rights reserved.
// Use of this source code is governed a license that can be found in the LICENSE file.

var gulp = require("gulp");
var ts = require("gulp-typescript");
var tsSourcemaps = require("gulp-sourcemaps");
var merge = require("merge2");
var clean = require("gulp-clean");
var runSequence = require("run-sequence");

/**
 * $ gulp ts
 *
 * Compile TypeScript files into "dist/".
 */
var tsProject = ts.createProject("./tsconfig.json");
gulp.task("ts", function() {
  var tsResult = tsProject.src()
    .pipe(tsSourcemaps.init())
    .pipe(tsProject());
  return merge([
    tsResult.js
      .pipe(tsSourcemaps.write("."))
      .pipe(gulp.dest("./lib/js")),
    tsResult.dts
      .pipe(gulp.dest("./lib/definitions"))
  ]);
});

/**
 * $ gulp clean
 *
 * Clean ./lib folder.
 */
gulp.task("clean", function() {
  return gulp.src("./lib", {read: false})
    .pipe(clean({force: true}));
});

/**
 * $ gulp
 *
 * Clean ./lib and rebuild.
 */
gulp.task("default", function() {
  runSequence("clean", "ts");
});