On Sat, 16 Dec 2006, seth vidal wrote:
Except that we were maintaining multiple copies of the same data created
at different times from different sources and containing subtly
different content when we had rpmdb-redhat + hdlist + repodata. This
would be an optional optimization that doesn't change the content, only
lets systems download what they would end up creating on their own
system anyway.
It's like downloading a binary rpm instead of a srpm. You can take the
srpm and make it into an rpm that will be (more or less) the same
content as the binary rpm available on the mirror, but someone else has
just taken the time to do it for you so you don't have to.
Or maybe I'm being crazy, but I don't see it as another copy of the
metadata. I see it as the same copy, just removing the extra processing
of it from every person's machine and having the processing only occur
once.
On a second thought...
What do we need the xml for then, anyway? Even on fast computers the
repodata format is very expensive to process (otherwise we wouldn't have
had several generations of pickle and sqlite caches).
I would actually welcome a new format which is fast to process and search
*as is*. Be it sqlite db or whatever reasonably portable.
- Panu -
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