I'm trying to create a desktop entry using a script file with the installer framework but not working.

Here is the content of the script file:

Qt Code: 
  1. function Component() {
  2.     installer.finishButtonClicked.connect(this, Component.prototype.installationFinished);
  3. }
  4.  
  5. Component.prototype.createOperations = function() {
  6.     component.createOperations();
  7. }
  8.  
  9. Component.prototype.installationFinished = function() {
  10.     try {
  11.         if (installer.isInstaller() && installer.status == QInstaller.Success) {
  12.             component.addOperation("CreateDesktopEntry", 
  13.                                   "@HomeDir@/.local/share/applications/Cumulus.desktop", 
  14.                                   "Type=Application\n
  15.                                   Terminal=false\n
  16.                                   Exec=@TargetDir@/Cumulus\n
  17.                                   Name=Cumulus\n
  18.                                   Icon=@TargetDir@/cumulus.svg");
  19.             component.addOperation("Copy", "@HomeDir@/.local/share/applications/Cumulus.desktop", "@HomeDir@/Desktop/Cumulus.desktop");
  20.             QDesktopServices.openUrl("file:///" + installer.value("TargetDir") + "/InstallationLog.txt");
  21.         }
  22.     } catch(e) {
  23.         console.log(e);
  24.     }
  25. }
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I also have tried the following version for installation Finished:

Qt Code: 
  1. Component.prototype.installationFinished = function() {
  2.     var targetDir = installer.value("TargetDir");
  3.     var homeDir = installer.value("HomeDir"); 
  4.     var desktopFileTarget = installer.value("HomeDir") + "/.local/share/applications";
  5.     try {
  6.         if (installer.isInstaller() && installer.status == QInstaller.Success) {
  7.             component.addOperation("CreateDesktopEntry", 
  8.                                   desktopFileTarget + "/Cumulus.desktop", 
  9.                                   "Type=Application\nTerminal=false\nExec= " + targetDir + "/Cumulus\nName=Cumulus\nIcon= " + targetDir + "/cumulus.svg");
  10.             QDesktopServices.openUrl("file:///" + installer.value("TargetDir") + "/InstallationLog.txt");
  11.         }
  12.     } catch(e) {
  13.         console.log(e);
  14.     }
  15. }
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The script runs and no error is logged, when finishing the InstallationLog.txt opens and is there to confirm that the script is running.
I have also tried copying a file from within installation using Copy operation but not working at all either.