## page was renamed from Teams/Dpkg/Proposals/ConffileDatabase/Discussion
Another possibility to help during configuration files upgrades would be to use
[[http://config-model.wiki.sourceforge.net/|Config::Model]].

To provide configuration files upgrade, this tool needs:
 * a description of the structure and properties of the conf file (constraints and default values)
 * a writer and a parser so conf file data is loaded in Config::Model (which know how to use them thanks to the description above)

Debian default configuration can be specified in the description above.

When upgrading, Config::Model will:
 * load old users data (no matter how extensive the modifications are)
 * discard obsolete config parameters
 * provide default values for new parameters

The only drawback (currently) is that comments are lost.

As a bonus, the user will get graphical or curses interfaces to further customize configuration data.

If you want to play with this upgrade feature, you can try it with /etc/ssh/sshd_config upgrade.
(See [[http://search.cpan.org/dist/Config-Model-OpenSsh|Config::Model::OpenSsh]])

Feel free to contact Config::Model author if you need more explanations on upgrade possibilities with Config::Model