Added config exists check

Requires additional input cleansing

src/configManager.ts

@@ -28,7 +28,7 @@ export interface LamingtonConfig {
 	eos: string;
 	keepAlive?: boolean;
 	outDir?: string;
-	exclude?: string | RegExp | Array<string | RegExp>;
+	exclude?: Array<string>;
 }
 
 /**
@@ -101,28 +101,36 @@ export class ConfigManager {
 		// Save cached configuration
 		await writeFile(
 			CONFIG_FILE_PATH,
-			JSON.stringify(
-				{
+			JSON.stringify({
 					...existingConfig,
 					...userConfig,
-				},
-				null,
-				4
+				}, null, 4
 			),
 			ENCODING
 		);
 		// Load existing configuration
 		await ConfigManager.loadConfigFromDisk();
 	}
 
+	public static async createConfigWhenMissing() {
+		const atPath = path.join(process.cwd(),'.lamingtonrc');
+		if (await ConfigManager.configExists(atPath)) return;
+		ConfigManager.initWithDefaults();
+		await writeFile(atPath, JSON.stringify(ConfigManager.config, null, 4), ENCODING);
+	}
+
 	/**
 	 * Checks the existence of the configuration
-	 * file at the default [[CONFIG_FILE_PATH]]
+	 * file at the default [[CONFIG_FILE_PATH]] or
+	 * optional path
 	 * @author Mitch Pierias <github.com/MitchPierias>
+	 * @param atPath Optional file path for lookup
 	 * @returns Config exists determiner
 	 */
-	public static async configExists() {
-		return await exists(CONFIG_FILE_PATH);
+	public static async configExists(atPath:string = CONFIG_FILE_PATH) {
+		// Should filter out any trailing filename and concatonate
+		// the default filename
+		return await exists(atPath);
 	}
 
 	/**