Question

I have a install4j project and want to make a project.

There is a libs-folder within my setup, where all my jars are packaged:

<install-dir>/libs/myA.jar
<install-dir>/libs/myB.jar
<install-dir>/libs/alien.jar

The alien.jar is a additional file, not created from my setup.
if I deliver a update with a packages libs-folder the alien.jar get deleted and I don’t understand why.

There is a DeleteFilesAction before the InstallFilesAction, which has a filter that all alien.jar weon’t be deleted. If I make a MessageBox after my DeleteFilesAction, the

alien.jar

still exists.

When the InstallFileAction starts, the complete libs-Folder seems to be deleted.

I beleave there are configuration flags, which I don’t know.

Question:
How do I delete the complete libs-folder, expect the alien.jar?

Answer 1

I think it is not possible with an DeleteFilesAndDirectory-Action to delete all (unknown) files within a directory.

I used a Action where <install-dir>/libs is provided as folder to be deleted.
I provided a filter-Script for filenames (the alien.jar had a return value “false” the rest shozuld be deleted). But the action deletes the libs-dir as well. I think it works as designed, so it is not a bug.

For all peope with the same Problem a workarround or soultion:

com.install4j.runtime.installer.helper.fileinst.FileInstaller fi = com.install4j.runtime.installer.helper.fileinst.FileInstaller.getInstance();

File directory = new File(context.getInstallationDirectory(), "/libs");

File[] filesInLib = directory.listFiles();

for(File file:filesInLib){
   boolean shouldDelete= true;

   if(file.getName().toLowerCase().contains("alien")){
       Util.logInfo(null,"dexchange detected: " + file.getName());
       shouldDelete= false;
   }

   Util.logInfo(null,"Delete " + file.getAbsolutePath() + ": " +reval);

   if(shouldDelete){
      if (file.exists()) {
          Util.logInfo( null, "delete file: " + file);
          fi.deleteFile(file);
      }
   }
}

return false;

At Ingo Kegel:
Thanks for your help, I didn’t want to open a support ticket, because I was quite sure it is no bug in you product. But I think another checkbox “delete if not empty” would help a lot in the DeleteFilesOrDirectory Action.