Message-ID: <3626653F.2266F083@unb.ca>
Date: Thu, 15 Oct 1998 18:12:32 -0300
From: Endlisnis <s257m AT unb DOT ca>
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To: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
CC: djgpp AT delorie DOT com
Subject: Re: Uninstaller.
References: <Pine DOT SUN DOT 3 DOT 91 DOT 981015124620 DOT 15214N-100000 AT is>
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Reply-To: djgpp AT delorie DOT com

Eli Zaretskii wrote:

> On Wed, 14 Oct 1998, Endlisnis wrote:
>
> > mine, you get a list of application names (from the ver files).
> > With rm, after to uninstall everything, you are left with a
> > directory skeleton; mine gets rid of the directories as well.
>
> This is easy to do with `rm' as well: just add -r to the options:
>              rm -rvf @manifest/foo.mft
> So if you really want to remove directories (I'm not sure this is so
> important, btw), then you need to be smart about it.  For example,
> defer removing them until the very end, and if the directory isn't
> empty, either ask the user or skip removing it (and possibly print a
> suitable message).

   Well, this is how my program works:
For each file in the manifest:
1) It deletes the file (using the 'remove' function, which I assume does not
work on directories).
2) It tries to delete the directory using 'rmdir' function.
3) If the deleting of the directory succeeded (only works on empty
directories), then move back one directory level and go to #2.

    So, mine will ignore any directory entries in the manifest file (it will
actually say that it can't delete the 'file').  And it will remove any
directories that become empty as a result of the uninstall.  The one possible
side-effect of this is if you had your DJGPP package installed in a directory
structure like this:
"C:\LANG" directory with only entry being the DJGPP directory.
(C:\LANG\DJGPP\ is the installation path) then the LANG dir would be removed
as a final act of completely uninstalling DJGPP (assuming that you had not
added any new files, or none were created)

--
     (\/) Endlisnis (\/)
          s257m AT unb DOT ca
          Endlisnis AT GeoCities DOT com
          Endlisnis AT BrunNet DOT Net