[wpkg-users] using exit codes

[Mark Nienberg]

I haven't found anything in the wiki that really describes how to use exit codes in 
the "packages.xml" file.  I have studied some of the examples of silent installers, 
but I still don't get it entirely.

As an example, here is a package I have set up:

<package id="sunbird" name="Mozilla Sunbird" revision="3" priority="0">
   <check type="uninstall" condition="exists" path="Mozilla Sunbird (0.5)" />

   <install cmd='"%SOFTWARE%\sunbird\sunbird-0.5.en-US.win32.installer.exe" -ms' />
   <install cmd='cmd /c del /q "%ALLUSERSPROFILE%\Desktop\Mozilla Sunbird.lnk"' />

   <upgrade cmd='"%PROGRAMFILES%\Mozilla Sunbird\uninstall\uninst.exe" /s' />
   <upgrade cmd='cmd /c rmdir /S /Q "%PROGRAMFILES%\Mozilla Sunbird"' />
   <upgrade cmd='"%SOFTWARE%\sunbird\sunbird-0.5.en-US.win32.installer.exe" -ms' />
   <upgrade cmd='cmd /c del /q "%ALLUSERSPROFILE%\Desktop\Mozilla Sunbird.lnk"' />
</package>


The upgrade command for "rmdir /S /Q" works fine unless the directory was completely 
removed by the uninstall command preceding it, in which case it fails with error code 
2.  Is it possible to accept this and continue with the remaining upgrade commands by 
inserting and error code statement?  Alternatively, I guess I could write a vbs 
script with more complicated conditional statements in it.

Thanks,
Mark



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