Gulp tasks

gulpfile.js

// Gulp
var gulp = require('gulp'); 

// Gulp plug-ins
var watch 		= require('gulp-watch'), 			// Watcher, runs tasks on file change
	concat 		= require('gulp-concat'), 			// Concatenation of files
	jshint 		= require('gulp-jshint'), 			// JS Linting
	compass 	= require('gulp-compass'), 			// SASS compilator including Compass mixin libraries.
	jade 		= require('gulp-jade'), 			// Compiles .jade files into raw HTML
	minifyCSS 	= require('gulp-minify-css'), 		// Minify CSS
	uglify 		= require('gulp-uglify'), 			// Uglifies JS files
	stripDebug 	= require('gulp-strip-debug'), 		// Strips all console.xxx commands from JS files.
	rimraf 		= require('rimraf'), 				// Deletes files and folders 
	plumber 	= require('gulp-plumber'), 			// Error pipe streaming
	util 		= require('gulp-util'), 			// Extends gulp utilities
	merge 		= require('gulp-merge'), 			// Merges multiple streams
	notify 		= require('gulp-notify'); 			// Toast notifications for MacOS and Windows

var paths = {
	jade: [
		'./src/jade/**',
	],
	sass: [
		'./src/sass/**',
	],
	angularScripts: [
		'./src/js/**',
	],
};

// Error reporting function.
var reportError = function (error) {
	// Log into console and beep.
	util.log(util.colors.red('Error'), error.message);
	util.beep();

	// Toast message
	notify({
		title: 'Task Failed [' + error.plugin + ']',
		message: error.message,
	}).write(error);

	// Prevent the 'watch' task from stopping
	this.emit('end');
};
// Error reporting for Rimraf.
var rimrafCBHandler = function (cb) {
	
	if (cb == null) {
		util.log(util.colors.green('Folder deleted.'));
	}
	else {
		util.log(util.colors.red('Rimraf Error:'), cb);
		util.beep();
		// Toast message
		notify({
			title: 'RimRaf has thrown an exception',
			message: cb,
		}).write(cb);
	}

};

/***
 *** !!! THIS TASK DELETES FILES !!!
 ***
 *** BE EXTREMELY CAUTIOUS ON CHANGING ANYTHING ON THIS TASK AS
 *** IT CAN RESULT IN SOURCE FILES DELETED FUCKING UP THE PROJECT.
 ***/
gulp.task('clean', function() {
	
	rimraf('./.sass-cache', rimrafCBHandler);
	rimraf('./templates', rimrafCBHandler);
	rimraf('./assets', rimrafCBHandler);

});	

// Copy assets from SRC folder
gulp.task('copyassets', function() {
	return gulp.src('./src/assets/**')
				.pipe(gulp.dest('./assets'));

});	

// Jade for DEV
gulp.task('jade:dev', function() {
	// Compile everything apart from components folder.
	return gulp.src(['./src/jade/{*.jade,**/**.jade}', '!./src/jade/{components,components/**}'])
				.pipe(plumber({ errorHandler: reportError }))
				.pipe(jade({
					pretty: '\t', // Tab indent
					doctype: 'html'
				}))
				.pipe(gulp.dest('./'));
});	

// Jade for Build (compresses HTML)
gulp.task('jade:production', function() {
	// Compile everything apart from components folder.
	return gulp.src(['./src/jade/{*.jade,**/**.jade}', '!./src/jade/{components,components/**}'])
				.pipe(plumber({ errorHandler: reportError }))
				.pipe(jade({
					pretty: false, // Whitespace compression
					doctype: 'html'
				}))
				.pipe(gulp.dest('./'));
});	

 
gulp.task('compass:dev', function() {
	return gulp.src('./src/*.scss')
		.pipe(plumber({ errorHandler: reportError }))
		.pipe(compass({
			css: './assets/css',
			sass: './src/sass',
			image: './assets/images'
		}))
		.pipe(gulp.dest('./assets/css'));
});
gulp.task('compass:production', function() {
	return gulp.src('./src/*.scss')
		.pipe(plumber({ errorHandler: reportError }))
		.pipe(compass({
			css: './assets/css',
			sass: './src/sass',
			image: './assets/images',
			style: 'compressed',
		}))
		.pipe(gulp.dest('./assets/css'));
});

// Compile JS for DEV
gulp.task('scripts:dev', function() { 
	// Pack all the Angular JS
	gulp.src(['./src/js/application/**/**.js'])
		.pipe(plumber({ errorHandler: reportError }))
		.pipe(jshint())
		.pipe(concat('scripts.js'))
		.pipe(gulp.dest('./assets/js'));

	// Pack all vendor JS
	gulp.src('./src/js/vendor/*.js')
		.pipe(plumber({ errorHandler: reportError }))
		.pipe(jshint())
		.pipe(concat('vendor.js'))
		.pipe(gulp.dest('./assets/js/vendor'));

	// return merge(appJS, vendorJS); 

});

// Compile JS for Build - Strips console.log, Compresses and uglifies JS.
gulp.task('scripts:production', function() { 
	// Pack all the Angular JS
	gulp.src(['./src/js/application/**/**.js'])
		.pipe(plumber({ errorHandler: reportError }))
		.pipe(jshint())
		.pipe(concat('scripts.js')) // Concatenate
		.pipe(stripDebug()) // Strip all console.log
		.pipe(uglify({
			mangle: false, // Skip name obfuscation, fucks up with Angular dependencies.
		})) // Minify
		.pipe(gulp.dest('./assets/js'));

	// Pack all vendor JS
	gulp.src('./src/js/vendor/*.js')
		.pipe(plumber({ errorHandler: reportError }))
		.pipe(jshint())
		.pipe(concat('vendor.js')) // Concatenate
		.pipe(stripDebug()) // Strip all console.log
		.pipe(uglify({
			mangle: false, // Skip name obfuscation, fucks up with Angular dependencies.
		})) // Minify
		.pipe(gulp.dest('./assets/js/vendor'));
	
	// return merge(appJS, vendorJS); 

});


// Rerun the task when a file changes
gulp.task('watch', function() {
	gulp.watch(paths.angularScripts, ['scripts:dev']);
	gulp.watch(paths.jade, ['jade:dev']);
	gulp.watch(paths.sass, ['compass:dev']);
});

// Task batches
gulp.task('default', ['jade:dev', 'scripts:dev', 'compass:dev']); // Quick compile
gulp.task('build:dev', ['copyassets', 'jade:dev', 'scripts:dev', 'compass:dev']); // Compile for dev
gulp.task('build:production', ['copyassets', 'jade:production', 'scripts:production', 'compass:production']); // Compile minified files