gulpfile.js

'use strict'

const gulp = require('gulp');
const gulpTs = require('gulp-typescript');
const gulpTslint = require('gulp-tslint');
const tslint = require('tslint');
const sourcemaps = require('gulp-sourcemaps');
const del = require('del');
const path = require('path');
const nodemon = require('gulp-nodemon');

const project = gulpTs.createProject('tsconfig.json');
const typeCheck = tslint.Linter.createProgram('tsconfig.json');

gulp.task('lint', () => {
	return gulp.src('./src/**/*.ts')
		.pipe(gulpTslint({
			configuration: 'tslint.json',
			formatter: 'prose',
			program: typeCheck
		}))
		.pipe(gulpTslint.report());
})

gulp.task('build', ['lint'], () => {
	del.sync(['./bin/**/*.*']);
	gulp.src('./src/**/*.js')
		.pipe(gulp.dest('bin/'));
	gulp.src('./src/**/*.json')
		.pipe(gulp.dest('bin/'));
	gulp.src('./src/**/*.png')
		.pipe(gulp.dest('bin/'));
	gulp.src('./src/**/*.ttf')
		.pipe(gulp.dest('bin/'));
	const tsCompile = gulp.src('./src/**/*.ts')
		.pipe(sourcemaps.init())
		.pipe(project());

	return tsCompile.js
		.pipe(sourcemaps.write({ sourceRoot: file => path.relative(path.join(file.cwd, file.path), file.base) }))
		.pipe(gulp.dest('bin/'));
});

gulp.task('watch', ['build'], function() {
	gulp.watch('./src/**/*.ts', ['build']);
});

gulp.task('start', ['build'], function() {
	return nodemon({
		script: './bin/index.js',
		watch: './bin/index.js'
	})
})

gulp.task('serve', ['watch'], function() {
	return nodemon({
		script: './bin/index.js',
		watch: './bin/'
	})
});