-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 03/11/2014 02:46 AM, Vít Ondruch wrote: > Dne 10.3.2014 17:10, Toshio Kuratomi napsal(a): >> At last week's FESCo meeting, the fact that Products desired to >> have divergent configuration was briefly touched on. On >> Thursday, a few FPC members had a brainstorming session about it >> and on Friday, sgallagh and that brainstorming continued with >> sgallagh, adamw, tflink, notting, and myself. We came up with a >> tentative idea here: >> >> https://fedoraproject.org/wiki/User:Toshio/Product_Divergence_(config) >> >> >> The idea is to allow config file divergence via the alternatives system as >> that already provides us with a commandline tool and some >> structure to > build >> on. We'd still have to write a few pieces to complete the >> picture but it seemed to be a better starting point than using >> rpm Conflicts between config-packages. >> >> Anyone have thoughts on this potential path? >> >> -Toshio >> >> > > > With rich dependencies coming to Fedora, wouldn't be better to wait > for a bit and benefit from them? We would have product specific > configuration in subpackages and installed it such as "Requires: > fedora-product-cloud & foo-config-cloud; Requires: > fedora-product-server & foo-config-server". >
That unfortunately doesn't address the issue in a realistic way. I don't think there's a way that dependency resolution can resolve that in a positive way. The closest I can see coming up with would be: == foo == Requires: foo-config == foo-config-server == Provides: foo-config = 1.0 Conflicts: fedora-release-workstation Conflicts: fedora-release-cloud == foo-config-workstation == Provides: foo-config = 1.0 Conflicts: fedora-release-server Conflicts: fedora-release-cloud == foo-config-cloud == Provides: foo-config = 1.0 Conflicts: fedora-release-workstation Conflicts: fedora-release-server == foo-config-default == Provides: foo-config = 2.0 Conflicts: fedora-release-workstation Conflicts: fedora-release-server Conflicts: fedora-release-cloud So, if installed on a Product, yum would resolve whichever config subpackage doesn't hit any conflicts (which would be the matching version or the default, if not on a product). There are a couple down-sides to this approach: 1) It eliminates the possibility of having multiple Products installed on the same system. Whether we care about this is being debated elsewhere, but this approach would make it impossible. 2) It might make life a real pain in the neck to deal with adding new Products to Fedora, since any package providing custom authentication will have to tweak Provides: and Conflicts: to ensure that the new Product gets reasonable defaults. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlMfALwACgkQeiVVYja6o6OHJACgjy0a+Db5DNj3/rCNs+FjmupO 5dkAn1RvCXAQNqdPPZx8eg8fABMZm6YK =AmCw -----END PGP SIGNATURE----- -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
