On Sun, Mar 01, 2009 at 03:59:46PM +0100, Carsten Hey wrote: > On Sun, Mar 01, 2009 at 01:01:49PM +0000, Ben Hutchings wrote: > > On Sun, 2009-03-01 at 02:42 +0100, Carsten Hey wrote: > > > Deborphan needs a way to detect shared libraries ... > > [...] > > There is already a role::plugin which should apply to PAM modules. > role::plugin seems to fit. How do we ensure that all PAM, Apache, Roxen > modules, all DSPAM backends and so on must be tagged role::plugin? Is > there some kind of debtag policy where such things can be specified? At the moment there is no way to ensure it; the point of the proposal that I sent Cc-ed to debian-dak is precisely to make at least some debtags tags official enough to expect DDs to use them properly. That will probably have as a side effect the need to clarify several corner cases and formalize and document better the way in which those official tags should be used. The idea, however, would be to have a tag whose point is "shared libraries pulled in as dependencies: package managers can safely hide these". deborphan can use that, and it can be formalized by adding "deborphan will uninstall these packages if no other package depends on it". role::app-data is probably also something that deborphan can deal with. The reason I haven't pushed for such changes yet, is because I don't have a way to specially control the workflow of tags that need it: once a tool depends on a tag for some important choice, a different workflow is needed where changes to that tag need to be checked more carefully. I am planning a redesign of the Debtags web interface to introduce the possibility of such special workflows (see http://lists.alioth.debian.org/pipermail/debtags-devel/2009-February/001935.html) and the proposal that I just posted to -devel also has the effect to provide special workflow for some tags so that we can rely on them more. > sepecial::safely-removable or the existing special::auto-inst-parts. > The latter is currently only partly useful for deborphan since only very > few libraries are marked with this tag: [...] > Are there any plans to either tag all safely removable shared libraries > with special::auto-inst-parts or remove this tag from the ones that > already got it? Yes, that tag is neglected, and should disappear: the idea is that 'safely removable' packages are already quite identifiable by 'role' tags, and there is no need to repeat that information. It's there until someone feels like reviewing all packages tagged with it and seeing if they indeed all fit in role::shared-lib and role::app-data or if there are other corner cases in significant number worth of special attention. > I guess all tags will be included in /var/lib/dpkg/status before > sections will be removed from Debian, is this correct? All implementation details have to be decided. By gut feeling I would not bet on 'status', but I would assume that at least 'apt-cache dumpavail' will give you the tags. Ciao, Enrico -- GPG key: 1024D/797EBFAB 2000-12-05 Enrico Zini <enrico@debian.org>
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