Hi, On Tue, 20 Aug 2013, Bastien ROUCARIES wrote: > Now that symlink to dir is implemented, how can we implement the > reverse operation ?
Note that you still have to update man/dpkg-maintscript-helper.1 AFAIK. We don't want to ship undocumented features. > I suppose checking that the: > - path is a directory, > - if LAST version is lesser We should clearly define the cases that we want to support (and have it fail when the pre-requisites are not satisfied). You have mutiple questions to answer: 1/ How do you want to handle non-packaged files present in the directory? 2/ How do you want to handle files from other packages in the directory? 3/ What do you do if the expected directory is not a directory? What if it's another symlink (probably setup by the admin)? My first answers would be: 1/ and 2/ try to reinstall those files at their expected place in the directory pointed by the symlink 3/ do nothing A possible way to do this could be: * Move the directory away in preinst (<dir>.dpkg-backup), put in place a symlink pointing to the renamed directory * In postinst, move remaining files from the temporary directory to the directory pointed by the symlink (except if there's already a new file at the expected location, in that case warn about the conflict and leave the file). Note we expect the file unpack to have updated the symlink to a new directory. If it's still pointing to "<dir>.dpkg-backup" then we should probably update the symlink ourselves (assuming it's given as parameter to the dpkg-maintscript-helper). > And what do you means by swap? Could you give some example ? That feature description was written by Lionel Elie Mamane <lio...@mamane.lu> (in copy). But swapping means something like this: Changing: directory "foo", symlink "bar" (pointing to "foo") Into: directory "bar", symlink "foo" (pointing to "bar") I'm not sure that this is a frequent case and we should consider whether 2 simultaneous calls to dpkg-maintscript-helper would do the right thing (one symlink2dir associated to one dir2symlink) Cheers, -- Raphaël Hertzog ◈ Debian Developer Discover the Debian Administrator's Handbook: → http://debian-handbook.info/get/ -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
