gulpfile.js

'use strict';
// include gulp
var gulp = require('gulp');

// include plug-ins
var changed = require('gulp-changed');
var minifyHTML = require('gulp-minify-html');
var concat = require('gulp-concat');
var autoprefix = require('gulp-autoprefixer');
var minifyCSS = require('gulp-minify-css');
var rename = require('gulp-rename');
var stripDebug = require('gulp-strip-debug');
var uglify = require('gulp-uglify');
var gulpif = require('gulp-if');
var del = require('del');
var argv = require('minimist')(process.argv.slice(2));

var paths = {
	dist: {
		root: './dist',
	},
	html: {
		src: './src/partials/*.html',
		dest: './dist/partials',
		index: './src/index.html',
	},
	css: {
		src: [
			'./bower_components/bootswatch/yeti/bootstrap.css',
			'./bower_components/font-awesome/css/font-awesome.css',
			'./bower_components/angular-bootstrap/ui-bootstrap-csp.css',
			'./src/css/*.css',
		],
		dest: './dist/css',
	},
	fonts: {
		src: [
			'./bower_components/font-awesome/fonts/fontawesome-webfont.*',
			'./bower_components/bootstrap/dist/fonts/glyphicons-halflings-regular.*',
		],
		dest: './dist/fonts',
	},
	js: {
		src: [
			'./bower_components/angular/angular.js',
			'./bower_components/angular-bootstrap/ui-bootstrap-tpls.js',
			'./bower_components/angulartics/dist/angulartics.min.js',
			'./bower_components/angulartics/dist/angulartics-ga.min.js',
			'./bower_components/jquery/dist/jquery.min.js',
			'./bower_components/angular-route/angular-route.js',
			'./bower_components/bootstrap/dist/js/bootstrap.js',
			'./src/js/*.js',
		],
		dest:'./dist/js',
	},
};

// minify new or changed HTML pages
gulp.task('minify-html', function() {
	var opts = {
		empty: true,
		quotes: true
	};

	return gulp.src(paths.html.src)
		.pipe(changed(paths.html.dest))
		.pipe(minifyHTML(opts))
		.pipe(gulp.dest(paths.html.dest));
});

// CSS concat, auto prefix, minify, then rename output file
gulp.task('minify-css', function() {

	return gulp.src(paths.css.src)
		.pipe(concat('styles.css'))
		.pipe(autoprefix('last 2 versions'))
		.pipe(minifyCSS({ processImport: false }))
		.pipe(rename({ suffix: '.min' }))
		.pipe(gulp.dest(paths.css.dest));
});

gulp.task('copy-static', function() {
	return gulp.src(paths.html.index)
		.pipe(gulp.dest(paths.dist.root));
});

gulp.task('copy-fonts', function() {
	return gulp.src(paths.fonts.src)
		.pipe(gulp.dest(paths.fonts.dest));
});

// JS concat, strip debugging code and minify
gulp.task('bundle-scripts', function() {
	gulp.src(paths.js.src)
		.pipe(concat('spotlistr.js'))
		.pipe(gulpif(!!argv['release'], stripDebug()))
		.pipe(gulpif(!!argv['release'], uglify({mangle: false})))
		.pipe(rename({ suffix: '.min' }))
		.pipe(gulp.dest(paths.js.dest));
});

gulp.task('clean', function(cb) {
	del(['./dist'], cb);
});

// default gulp task
gulp.task('default', ['minify-html', 'copy-fonts', 'bundle-scripts', 'minify-css', 'copy-static'], function() {
	// watch for HTML changes
	gulp.watch(paths.html.src, ['minify-html']);
	// watch for JS changes
	gulp.watch(paths.js.src, ['bundle-scripts']);
	// watch for CSS changes
	gulp.watch(paths.css.src, ['minify-css']);
});