gulpfile.js

var gulp = require("gulp");
var clean = require("gulp-clean");
var runSequence = require("run-sequence");
var gulpTypings = require("gulp-typings");
var exec = require('child_process').exec;
var git = require("gulp-git");
var fs = require("fs");
 
// Install typings.
gulp.task("typings",function(){
  return gulp.src("./typings.json")
    .pipe(gulpTypings());
});

// Build TypeScript.
gulp.task("tsbuild", function(callback) {
  exec("tsc", function (err, stdout, stderr) {
    console.log(stdout);
    console.log(stderr);
    callback();
  });
});

gulp.task("git-add", function(){
  return gulp.src("build/*")
    .pipe(git.add());
});

gulp.task("build", function(callback) {
  runSequence("typings", "tsbuild", "git-add", callback);
});