-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Richard Bos wrote: > Op vrijdag 1 december 2006 08:56, schreef Marcus Meissner: >>> Maybe one of those talented persons who designed repomd should have a >>> look at /var/lib/locatedb. It's able to store equivalent information >>> about 2 Linuxes, 1 Windows system and a lot of user files in just 2.5MB. >>> Thanks to not using XML. >> Yeah, I saw this too and thought about at least using some kind of >> directory prefix or similar handling. >> >> XML really makes it easy to be stupid in data design :/ > > What about md5sum-ming the filelist, and use the md5sum as key? If a new > version of a package is released with the same filelist only the md5sum needs > to be transferred. For big packages the compression might be around 100% ;)
Already done. For yast2 repositories, package managers look at the serial number in media.1/media (the 2nd line), so only the media.1/media file is downloaded (very small, just a few bytes (22 bytes in my repository)). I use a timestamp for that. For rpm-md repositories, package managers look at the repodata/repomd.xml file. It has SHA checksums and timestamps of the other files (filelists.xml.gz and primary.xml.gz), e.g.: - ---8<------------------------------------------------------------ <?xml version="1.0" encoding="UTF-8"?> <repomd xmlns="http://linux.duke.edu/metadata/repo";> <data type="filelists"> <location href="repodata/filelists.xml.gz"/> <checksum type="sha">...</checksum> <timestamp>1165003298</timestamp> <open-checksum type="sha">...</open-checksum> </data> <data type="primary"> <location href="repodata/primary.xml.gz"/> <checksum type="sha">...</checksum> <timestamp>1165003298</timestamp> <open-checksum type="sha">...</open-checksum> </data> </repomd> - ---8<------------------------------------------------------------ That file is somewhat larger as for yast2 repositories, but still very small (951 bytes in my repository). yast2 and smart look at the serial numbers/timestamps of those files and compare it with the repository metadata they downloaded the last time. They will download the full metadata if and only if the remote serial/timestamp differs. cheers - -- -o) Pascal Bleser http://linux01.gwdg.de/~pbleser/ /\\ <[EMAIL PROTECTED]> <[EMAIL PROTECTED]> _\_v The more things change, the more they stay insane. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) iD8DBQFFcL3Sr3NMWliFcXcRAiqXAJ9l5t7iClRQxzoO581P4nJb7idRZwCgo35P ANBcC9X3wA6HVj04BX3zUc8= =DQx6 -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
