Merge pull request KSP-CKAN#61 from mgsdk/ckan_support_issue_2_permis…

…sions_fix

Ckan support issue 2 permissions fix

SettingsDialog.cs

@@ -84,6 +84,28 @@ private void ResetAutoStartChoice_Click(object sender, EventArgs e)
         {
             Main.Instance.Manager.ClearAutoStart();
 
+            // Mono throws an uninformative error if the file we try to run is not flagged as executable, mark it as such.
+            if (Util.IsLinux)
+            {
+                // Create the command with the filename of the currently running assembly.
+                string command = string.Format("+x \"{0}\"", System.Reflection.Assembly.GetExecutingAssembly().Location);
+
+                ProcessStartInfo permsinfo = new ProcessStartInfo("chmod", command);
+                permsinfo.UseShellExecute = false;
+
+                // Execute the command.
+                Process permsprocess = Process.Start(permsinfo);
+
+                // Wait for chmod to finish and check the exit code.
+                permsprocess.WaitForExit();
+
+                // chmod returns 0 for successfull operation.
+                if (permsprocess.ExitCode != 0)
+                {
+                    throw new Kraken("Could not mark CKAN as executable.");
+                }
+            }
+
             ProcessStartInfo sinfo = new ProcessStartInfo(System.Reflection.Assembly.GetExecutingAssembly().Location);
             sinfo.UseShellExecute = false;