Hello. I'm announcing it again in debian-devel because it contains new infrastructure to support proposals that are being discussed here, and to ask a small testing run: if I see no big showstoppers, this is the version that tomorrow I will upload to unstable.
I have made a bunch of neat additions: Major updates to tagcoll (the computing engine enabling every sort of operations on the tag databases): - Added a "reverse" command to tagcoll. Now, if we want to see all packages that have a given tag, we can just do this: tagcoll reverse collection-file | grep ^tag: (of course it might have other applications) - Added the --derived-tags-from option to tagcoll. This allows the introduction of tags that are added to an item if an expression matches the item tag set. For example, we can define this (from a proposal by David Roundy): userlevel::novice: !specialized && (interface::gui || interface::curses) Tagcoll is now able to expand such things. Major updates to debtags (the tool that manages the tag database for Debian): - Include a tag database with debtags (to be used for networkless systems, and, in the future, as the well-tested database for stable system) - Add the possibility of installing local vocabulary additions in /etc/tagvoc.d - Merge the master vocabulary and all the additions at update time. This means that the public location of the vocabulary has been changed to /var/lib/debtags/vocabulary - Extract implications and derived tags from the merged vocabulary at import time and keep them in /var/lib/debtags/{implications,derived-tags} They can now be used directly for tagcoll manipulations of the database - Expand implications and derived tags at update time, so that applications using the package database will find them. The package database can then be re-compressed at any time with tagcoll. We can now have custom vocabulary bits installed by {sub,meta}distro maintainers with records like this: ------------------------------------------------------- Tag: userlevel::novice Derived: !specialized && (interface::gui || interface::curses) Tag: specialized Derived: (!toy && !educational) && (devel || chemistry || electronics) ------------------------------------------------------- And yes, expressions can reference other expressions and tags resulting from implication expansion, too. I hope this can give the required technical support for the many good proposals I've seen in the list. Ciao! Enrico -- GPG key: 1024D/797EBFAB 2000-12-05 Enrico Zini <[EMAIL PROTECTED]>
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