NAME

       App::Manager - installing/managing/uninstalling software packages.

WHAT IT IS

       This module traces any dynamically linked program for
       filesystem-modifying calls such as rename, open64, unlink, remove
       etc. It will save all the files before they were modified. It can
       then undo and redo the changes as often as you want.

       At the moment, Linux is probably the only system that is
       supported.

EXAMPLE

       Here is a short walk-through:

       Say, you've just compiled gimp (http://www.gimp.org) in
       /usr/src/gimp and want to install it.  You are not sure wether you
       want to overwrite your old gimp installation (in case anything
       breaks), or maybe you want to be able to cleanly uninstall it
       later, in case you don't like it.

       Ok, so, instead of a plain "make install" you enter:

       appman install gimp make install

       I.e. you start appman with the install command for database "gimp"
       (database = the place where the diff is stored). The last two
       arguments are just the standard "make install" command.

       If you want to switch back to the old situation, all you need to do is:

       appman swap gimp

       And the contents of the database gimp are exchanged with the
       filesystem, i.e. the new gimp files are removed and are being
       replaced by their old versions (if any). If you call this command
       again, the installation is re-done (that why it is called "swap").

       "perldoc appman" might be even more enlightening ;)

INSTALLATION

       All databases are (currently) stored in one central directory which defaults
       to /var/appman. If you do not like this you can overwrite it at configuration time:

       perl Makefile.PL LIBDIR=/some/other/dir