smarter handling of missing dirs and dir options

Author: dmolsen

src/PatternLab/Config.php

@@ -219,13 +219,18 @@ public static function init($baseDir = "", $verbose = true) {
 		}
 
 		// double-check a few directories are real
-		if (!is_dir(self::$options["sourceDir"])) {
+		// refactor this at some point. it's verbose
+		if (!isset(self::$options["sourceDir"])) {
+			Console::writeError("please make sure sourceDir is set in <path>./config/config.yml</path> by adding 'sourceDir=some/path'. sorry, stopping pattern lab... :(");
+		} else if (!is_dir(self::$options["sourceDir"])) {
 			Console::writeError("hrm... i can't seem to find the directory with your source files. are you sure they're at <path>".Console::getHumanReadablePath(self::$options["sourceDir"])."</path>? you can fix this in <path>./config/config.yml</path> by editing sourceDir. sorry, stopping pattern lab... :(");
 		}
-		if (!is_dir(self::$options["publicDir"])) {
+		if (!isset(self::$options["publicDir"])) {
+			Console::writeError("please make sure publicDir is set in <path>./config/config.yml</path> by adding 'publicDir=some/path'. sorry, stopping pattern lab... :(");
+		} else if (!is_dir(self::$options["publicDir"])) {
 			Console::writeError("hrm... i can't seem to find the directory where you want to write your styleguide. are you sure it's at <path>".Console::getHumanReadablePath(self::$options["sourceDir"])."</path>? you can fix this in <path>./config/config.yml</path> by editing publicDir. sorry, stopping pattern lab... :(");
 		}
-		if (!is_dir(self::$options["styleguideKitPath"])) {
+		if (isset(self::$options["styleguideKitPath"]) && !is_dir(self::$options["styleguideKitPath"])) {
 			Console::writeError("hrm... i can't seem to find the directory where your styleguide files are located. are you sure it's at <path>".Console::getHumanReadablePath(self::$options["styleguideKitPath"])."</path>? you can fix this in <path>./config/config.yml</path> by editing styleguideKitPath. sorry, stopping pattern lab... :(");
 		}