jakorsme
4th January 2007 23:10 UTC

Help with alternate file install
I would like to be able to install one of two jar files (both with the same name, but different versions), based on a condition.

The pseudo code would be:

If( condition = 1 ) then
copy libraryOne.jar library.jar
Else if ( condition = 2 ) then
copy libraryTwo.jar library.jar
End If

I think I want to use FileCopy, but I don't see the ability to designate the destination filename (just the directory).

Thanks,
John

sag47
5th January 2007 04:45 UTC

It depends on what you're trying to do. Be more specific on what exactly you want it to do.

Here is an example of an if then type deal. Download HM NIS Edit, It makes sense of all the code and is very helpful.
Get it: http://hmne.sourceforge.net/

  ReadRegStr $4 HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\UHARC CMD" "UninstallString"
  Push $4
  Exch $EXEDIR
  Exch $EXEDIR
  Pop $4
  IfFileExists $4 RemoveNew Continue
  RemoveOld:
    MessageBox MB_ICONINFORMATION|MB_OK "An older version of UHARC CMD has been detected.$\nNow running uninstaller."
    goto Remove
  RemoveNew:
    IfFileExists "$TEMP\version.ini" Yes No
    Yes:
      Delete "$TEMP\version.ini"
      MessageBox MB_ICONINFORMATION|MB_OK "Uninstalling old version.$\n       Then updating."
      Goto Remove
    No:
      MessageBox MB_ICONINFORMATION|MB_OK "UHARC CMD 2.0 or newer has been detected.$\nNow running uninstaller."
      Goto Remove
  Remove:
    HideWindow
    Exec $4
    Goto Start
  Continue:

Red Wine
5th January 2007 05:05 UTC

Assume that already you've made your conditions:
If( condition = 1 ) then
File /oname=<path_to_extract>\library.jar <local_path>\libraryOne.jar
Else if ( condition = 2 ) then
File /oname=<path_to_extract>\library.jar <local_path>\libraryTwo.jar
End If

sag47
6th January 2007 10:40 UTC

I also saw this method of an if/then statement in another thread on this forum.

    ${If} $R0 == 1
      Abort
    ${EndIf}

Red Wine
6th January 2007 11:55 UTC

@ sag47
what exactly are you talking about on this thread?
You're confusing users, have you seen any need for Abort on the above pseudo code?