Em Sex, 2006-03-17 às 21:31 +0100, Tobias Burnus escreveu:
> Next question: If one calls rug update, does it make sense that rug
> first downloads all files and then installs them?
I don't see much sense in installing each package right after the file
has been downloaded.
Consider (big fake example) an update on rpm, that would need an updated
libz, which after upgraded makes current rpm unstable. Let's say you
downloaded and installed libz correctly, but right before it finish
downloading the new rpm you get a system crash (or power failure). In
this case, the new rpm would behave incorrectly next time you run it, so
you won't be able to update to the new release.
Ok, it's and idiotic and completely fake example, but who knows the
future?
I've already seen some of this erroneous behavior on Mandriva, since
their dep solver (urpmi) works like that (download/install/download) in
some cases, and there were many complains about it.
IMHO a package should only be installed after all it's dependencies
could be promptly satistifed, i.e., all dependent packages downloaded
before installed.
My 2c.
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