'use strict'; const gulp = require('gulp'); const babel = require('gulp-babel'); const ts = require('gulp-typescript'); const es = require('event-stream'); const project = ts.createProject('tsconfig.json'); gulp.task('build', [ 'build:ts', 'build:copy' ]); gulp.task('build:ts', () => { const tsResult = project .src() .pipe(ts(project)) .pipe(babel({ presets: ['es2015', 'stage-3'] })); return es.merge( tsResult.pipe(gulp.dest('./built/'))/*, tsResult.dts.pipe(gulp.dest('./built/'))*/ ); }); gulp.task('build:copy', () => { return es.merge( gulp.src([ './src/**/*.pug' ]).pipe(gulp.dest('./built/')) ); });