Added additional logging for catching permission errors.

Author: edwinclement08

lib/Local.js

@@ -38,14 +38,34 @@ function Local(){
       that.binaryPath = binaryPath;
       childProcess.exec('echo "" > ' + that.logfile);
 
+      try {
+        if (!fs.existsSync(binaryPath)) {
+          console.log("Binary does not exist at ", binaryPath);
+        }
+      } catch(err) {
+        console.log("Failed to check the existence of Binary at ", binaryPath);
+        console.error(err);
+      }
+
       that.opcode = 'start';
       that.tunnel = childProcess.execFile(that.binaryPath, that.getBinaryArgs(), function(error, stdout, stderr){
         if(error) {
           console.error('Error while trying to execute binary', error);
+          console.error('STDOUT');
+          console.error(stdout);
+          console.error('STDERR');
+          console.error(stderr);
+          console.error('------')
           if(that.retriesLeft > 0) {
             console.log('Retrying Binary Download. Retries Left', that.retriesLeft);
             that.retriesLeft -= 1;
-            fs.unlinkSync(that.binaryPath);
+            try {
+              fs.unlinkSync(that.binaryPath);
+            } catch(err) {
+              console.error('Failed to delete pre-existing binary: ');
+              console.error(err);
+            }
+
             delete(that.binaryPath);
             that.start(options, callback);
             return;
@@ -191,8 +211,8 @@ function Local(){
   };
 
   this.getBinaryPath = function(callback){
+    this.binary = new LocalBinary();
     if(typeof(this.binaryPath) == 'undefined'){
-      this.binary = new LocalBinary();
       var conf = {};
       if(this.proxyHost && this.proxyPort){
         conf.proxyHost = this.proxyHost;
@@ -201,6 +221,12 @@ function Local(){
       this.binary.binaryPath(conf, callback);
     } else {
       console.log('BINARY PATH IS DEFINED');
+      if (this.checkPath(this.binaryPath, fs.X_OK)) {
+        console.log('Binary has the correct permissions.');
+      } else {
+        console.log('Binary has incorrect permissions.');
+      }
+
       callback(this.binaryPath);
     }
   };

lib/LocalBinary.js

@@ -71,6 +71,7 @@ function LocalBinary(){
       });
     }
 
+    console.log("Started Binary Download");
     https.get(options, function (response) {
       response.pipe(fileStream);
       response.on('error', function(err) {
@@ -97,6 +98,7 @@ function LocalBinary(){
     var destBinaryName = (this.windows) ? 'BrowserStackLocal.exe' : 'BrowserStackLocal';
     var binaryPath = path.join(destParentDir, destBinaryName);
     if(this.checkPath(binaryPath, fs.X_OK)){
+      console.log("Binary found (with RWX flags) at ", binaryPath);
       callback(binaryPath);
     } else {
       this.download(conf, destParentDir, callback, 5);