fix: issue GerryFerdinandus#17 program opened by dragging a file

Default parameter does not work any more because we need 2 paramater
to start the program in console mode.

Author: GerryFerdinandus

enduser/readme.txt

@@ -7,8 +7,8 @@ These '.txt' files must be place in the same directory as the program.
 
 Console mode:
 Start program with a parameter to torrent file or dir
-trackereditor.exe "C:\dir\torrent\file.torrent"
-trackereditor.exe "C:\dir\torrent"
+trackereditor.exe "C:\dir\torrent\file.torrent" -U4
+trackereditor.exe "C:\dir\torrent" -U4
 What tracker will be added/removed depend the content of the add_trackers.txt and remove_trackers.txt files.
 
 --------------------
@@ -64,7 +64,7 @@ no new tracker + remove some or all tracker inside torrent.
 --------------------
 
 Updated torrent file trackers list order with '-Ux' parameter.
-This is optional parameter. The default setting is -U4. The same as previous software version.
+This is a mandatory parameter.
 
 trackereditor.exe "C:\dir\torrent" -U0
 

source/code/main.pas

@@ -774,13 +774,17 @@ procedure TFormTrackerModify.ConsoleMode;
   //update the torrent via console mode if there is a parameter detected.
   if ParamCount > 0 then
   begin
-    FConcoleMode := True;
+    //there must be 2 command line items for console mode
+    FConcoleMode := ParamCount = 2;
 
-    //Create the log file. The old one will be overwritten
-    AssignFile(FLogFile, ExtractFilePath(Application.ExeName) + LOG_FILE_NAME);
-    ReWrite(FLogFile);
+    if FConcoleMode then
+    begin
+      //Create the log file. The old one will be overwritten
+      AssignFile(FLogFile, ExtractFilePath(Application.ExeName) + LOG_FILE_NAME);
+      ReWrite(FLogFile);
+    end;
 
-    //Get the console parameters.
+    //Get the startup command lime parameters.
     ConsoleModeDecodeParameter(FileNameOrDirStr);
 
     //If FLogStringList empty then there is no error.
@@ -798,8 +802,13 @@ procedure TFormTrackerModify.ConsoleMode;
           CheckedOnOffAllTrackers(True);
           //Some tracker must be removed. Console and windows mode.
           UpdateViewRemoveTracker;
-          //update torrent
-          UpdateTorrent;
+
+          if FConcoleMode then
+          begin
+            //update torrent
+            UpdateTorrent;
+          end;
+
         end;
       end
       else //a torrent file is selected?
@@ -810,16 +819,25 @@ procedure TFormTrackerModify.ConsoleMode;
           try
             //Convert Filenames to stringlist format.
             StringList.Add(FileNameOrDirStr);
-            AddTorrentFileList(StringList);
-
-            //Show all the tracker inside the torrent files.
-            ShowTrackerInsideFileList;
-            //Mark all trackers as selected
-            CheckedOnOffAllTrackers(True);
-            //Some tracker must be removed. Console and windows mode.
-            UpdateViewRemoveTracker;
-            //update torrent
-            UpdateTorrent;
+
+            //Extract all the trackers inside the torrent file
+            if AddTorrentFileList(StringList) then
+            begin
+              //Show all the tracker inside the torrent files.
+              ShowTrackerInsideFileList;
+              //Mark all trackers as selected
+              CheckedOnOffAllTrackers(True);
+              //Some tracker must be removed. Console and windows mode.
+              UpdateViewRemoveTracker;
+
+              if FConcoleMode then
+              begin
+                //update torrent
+                UpdateTorrent;
+              end;
+
+            end;
+
           finally
             StringList.Free;
           end;
@@ -831,12 +849,16 @@ procedure TFormTrackerModify.ConsoleMode;
       end;
     end;
 
-    //Write to log file. And close the file.
-    WriteLn(FLogFile, FLogStringList.Text);
-    CloseFile(FLogFile);
+    if FConcoleMode then
+    begin
+      //Write to log file. And close the file.
+      WriteLn(FLogFile, FLogStringList.Text);
+      CloseFile(FLogFile);
+
+      //Shutdown the console program
+      Application.terminate;
+    end;
 
-    //Shutdown the console program
-    Application.terminate;
   end
   else
   begin //the program