optimized error handling and application start

blinky.js

@@ -12,20 +12,17 @@ global.config = process.argv[2] || __dirname + '/config.json';
 handleInterrupts();
 
 // start the application
-main();
+main()
+    .catch(exit);
 
 // main - let's get this party started
 async function main() {
-    try {
-        const config = await util.fileExists(global.config);
-        global.config = require(config.path);
-        global.config.path = config.path;
-        logger.initialize();
-        logger.info(await server.start());
-        server.handleRequests();
-    } catch (err) {
-        exit(err);
-    }
+    const config = await util.fileExists(global.config);
+    global.config = require(config.path);
+    global.config.path = config.path;
+    logger.initialize();
+    logger.info(await server.start());
+    server.handleRequests();
 }
 
 // ... and it all comes crashing down

libs/util.js

@@ -5,12 +5,7 @@ async function fileExists(file) {
     if (file === undefined) {
         throw new Error('can not check the existence of an undefined file');
     }
-    let path;
-    try {
-        path = await resolvePath(file);
-    } catch (err) {
-        throw err;
-    }
+    let path = await resolvePath(file);
     return await new Promise((resolve, reject) => {
         stat(path, (err, stats) => {
             if (err) {