[openFate 302924] use the raw meta-data cache to save downloads

Feature changed by: Matthias Eckermann Feature #302924, revision 7 Title: use the raw meta-data cache to save downloads openSUSE-11.0: Done Priority Requester: Desirable Projectmanager: Mandatory + openSUSE-11.1: Done + Priority + Requester: Desirable SLED-11: Done Priority Requester: Desirable SLES-11: Done Priority Requester: Desirable Requested by: Ján Kupec Partner organization: openSUSE.org Description: At least for http, zypp shouldn't download a file which already is (unchanged) in its meta-data cache again. This will most probably need to make the media back-end aware of the raw cache. Also, this feature can be implemented keeping the rpm file caching in mind (FATE #302159). References: https://bugzilla.novell.com/show_bug.cgi?id=307098 https://bugzilla.novell.com/show_bug.cgi?id=348050 FATE #302159 Discussion: #1: Stanislav Visnovsky (2007-11-06 10:02:49) Crucial functionality to further improve the stack. #2: Duncan Mac-Vicar (2007-12-10 16:44:18) This can be fixed if we use Fetcher on commit and set the right cache paths. #3: Cristian Rodriguez (2007-12-14 12:52:15) Critical enhacement, will make zypp lots of faster and more importantly friendly with the mirror infraestructure. #4: Ján Kupec (2008-02-19 15:54:32) Done by Duncan using Fetcher. -- openSUSE Feature: https://features.opensuse.org/?rm=feature_show&id=302924