Re: On adding size info to Packages files [very long]
>>"Charles" == Charles Briscoe-Smith <email@example.com> writes:
Charles> Manoj Srivastava writes:
Charles> $ gzip -l Sizes.hamm.*.gz
Charles> compressed uncompr. ratio uncompressed_name
Charles> 105201 795450 86.7% Sizes.hamm.contrib
Charles> 66294 402982 83.5% Sizes.hamm.main
Charles> 11446 63766 82.0% Sizes.hamm.non-free
Charles> 182941 1262198 85.5% (totals)
Charles> Looks reasonable... In practice, this information is only
Charles> going to be used while installing packages, and 180K isn't
Charles> much anyway. We could save far more space by compressing
Charles> the available, available-old, status and status-old files
Charles> (2.5Mb on my system).
Manoj> We have conflicting data here. Mrvn says that the total du
Manoj> data is only 76k. Charles says that the data is about 400k
Manoj> (which is way more in line with my off the cuff calculations).
Charles> The 400K was for normal hamm Packages files with additional
Charles> Du data added to it. That makes my numbers far closer to
Charles> Mrvn's. Also, weren't Mrvn's figures were for main only?
I stand corrected. Seems like my off the cuff estimates were
off a bit.
Manoj> I also would strongly advocate *NOT* stuffing this data into
Manoj> the Packages or the Available files, but keeping this apart on the
Manoj> archive and when downloaded on the users disk.
Charles> I'm now with you on this one. Given the sizes involved, I
Charles> don't think we even need to go to the trouble of generating
Charles> the "top N levels" versions. Using this would make it
Charles> difficult to take symlinks into account.
Well, now all we have to do is decide how this information
should be gathered. Does the package maintainer stick it into the deb
file? Should one upload the file separately (possibly modifying
dpkg-genchanges to also pgp stamp the sizes file, though I think a
hacked sizes file is not a major security breach, as long as the
package itself is intact).
If we go with a separate file kernel-package_4.08-1_i386.sizes.gz;
then all we need is a modified dupload, and a modification of Guys
script to handle the sizes file, even stashing it some place on the
though that location maybe suboptimal cause of the mirrors. dinsall
can just zcat the files sa needed.
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Manoj Srivastava <firstname.lastname@example.org> <http://www.datasync.com/%7Esrivasta/>
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