Re: [Libguestfs] Add support for slackware in supermin
Hi Mathieu,
On Sunday 09 November 2014 16:14:32 Richard W.M. Jones wrote:
On Sat, Nov 08, 2014 at 02:27:49PM +0100, Mathieu Bouillaguet wrote:
> Hi,
>
> What needs to be implemented to add support for slackware
> distribution in supermin ?
hi Mathieu
I'm on holiday at the moment and will give a more complete reply
when I get back. In brief you need to be able to do a few simple
package database meta operations such as listing all files in a
package and listing the installed deps of a named pkg. This pre-
supposes that slackware has such a packaging db. Pino CCd can
give more details, and you can look at existing pkg systems in
src/*.ml.
As Rich said briefly, supermin needs to be taught about the package
manager running on Slackware. supermin needs it to perform some
operations on the system, such as:
- query the basic information about a package (name, version, and all
the basic attributes such as epoch and architecture, if present/needed
to unequivocally identify a package later) given its name
- get the last time the package system has "changed" (like after an
update, or having installed/removed some package); this is needed so
supermin can avoid querying the package system when the set of
installed packages has not changed since last time supermin was run
- get the list of dependencies of a package
- get the list of files of a package, marking whether a file is
considered "configuration file" by the package manager; usually this
is the case for files in /etc, which the admin can edit, and the
package manager carefully handles when updating packages providing
them
- download and extract packages from the sources of the package manager;
this is needed so supermin can pick pristine copies of the files of an
installed package, usually to have unedited configuration files
supermin supports already few package manager, and you can find in the
src/ subdirectory their implementations: dpkg.ml, pacman.ml, rpm.ml.
--
Pino Toscano