Pony.fm/app/library/Assets.php

<?php
	use Assetic\Asset\AssetCollection;
	use Assetic\Asset\FileAsset;
	use Assetic\Asset\GlobAsset;
	use Assetic\Filter\CoffeeScriptFilter;

	class Assets {
		public static function scriptIncludes($area = 'app') {
			if (!Config::get("app.debug"))
				return '<script src="/build/scripts/' . $area . '.js?' . filemtime("./build/scripts/" . $area . ".js") . '"></script>';

			$scripts = self::mergeGlobs(self::getScriptsForArea($area));
			$retVal = "";

			foreach ($scripts as $script) {
				$filename = self::replaceExtensionWith($script, ".coffee", ".js");
				$retVal .= "<script src='/build/$filename?" . filemtime('./build/' . $filename) . "'></script>";
			}

			return $retVal;
		}

		public static function styleIncludes($area = 'app') {
			if (!Config::get("app.debug"))
				return '<script>document.write(\'<link rel="stylesheet" href="build/styles/' . $area . '.css?' . filemtime("build/styles/" . $area . ".css") . '" />\');</script>';

			$styles = self::mergeGlobs(self::getStylesForArea($area));
			$retVal = "";

			foreach ($styles as $style) {
				$filename = self::replaceExtensionWith($style, ".less", ".css");
				$retVal .= "<link rel='stylesheet' href='/build/$filename?" . filemtime('./build/' . $filename) . "' />";
			}

			return $retVal;
		}

		private static function replaceExtensionWith($filename, $fromExtension, $toExtension) {
			$fromLength = strlen($fromExtension);
			return substr($filename, -$fromLength) == $fromExtension
				? substr($filename, 0, strlen($filename) - $fromLength) . $toExtension
				: $filename;
		}

		/** Merges an array of paths that are passed into "glob" into a list of unique filenames.
		 * Note that this method assumes the globs should be relative to the "app" folder of this project */
		private static function mergeGlobs($globs) {
			$files = [];
			$filesFound = [];
			foreach ($globs as $glob) {
				foreach (glob("../app/" . $glob, GLOB_BRACE) as $file) {
					if (isset($filesFound[$file]))
						continue;

					$filesFound[$file] = true;
					$files[] = substr($file, 7); // chop off ../app/
				}
			}

			return $files;
		}

		private static function getScriptsForArea($area) {
			if ($area == 'app') {
				return [
					"scripts/base/jquery-2.0.2.js",
					"scripts/base/angular.js",
					"scripts/base/*.{coffee,js}",
					"scripts/shared/*.{coffee,js}",
					"scripts/app/*.{coffee,js}",
					"scripts/app/services/*.{coffee,js}",
					"scripts/app/filters/*.{coffee,js}",
					"scripts/app/directives/*.{coffee,js}",
					"scripts/app/controllers/*.{coffee,js}",
					"scripts/**/*.{coffee,js}"
				];
			} else if ($area == 'embed') {
				return [
					"scripts/base/jquery-2.0.2.js",
					"scripts/base/jquery.viewport.js",
					"scripts/base/underscore.js",
					"scripts/base/moment.js",
					"scripts/base/jquery.timeago.js",
					"scripts/base/soundmanager2-nodebug.js",
					"scripts/embed/*.coffee"];
			}

			throw new Exception();
		}

		private static function getStylesForArea($area) {
			if ($area == 'app') {
				return [
					"styles/base/jquery-ui.css",
					"styles/base/colorbox.css",
					"styles/app.less",
					"styles/profiler.less"
				];
			} else if ($area == 'embed') {
				return [
					"styles/embed.less"
				];
			}

			throw new Exception();
		}
	}