On Wed, 31 Oct 2018 at 18:25, Jason L Tibbitts III <tibbs@xxxxxxxxxxx> wrote: > > Looking at this further, this URL scheme is just terrible and will be > "fun" to make use of. > > Basically you have to keep in mind that a tool like spectool can't trust > the filename that is sent by the remote web server and will instead use > only the filename extracted from the URL. > > That means if you use something like this: > > Source0: https://cran.r-project.org/package=%{packname}&version=%{version} > > you'll get a filename like > > package=webp&version=0.4 > > (for a random package, R-webp, that I grabbed). Correct. > And that's not a useful filename; rpm won't unpack it. But that URL, for instance: https://cran.r-project.org/package=simmer&version=3.0.0 returns a redirection (303) to the complete URL, with file extension. > What you have to do is the somewhat painful: > > Source0: https://cran.r-project.org/package=%{packname}&version=%{version}#/%{packname}_%{version}.tar.gz > > Now, since we're going to hide this behind a macro, it's not the worst > thing in the world. But it leaves questions: > > * Is this guaranteed to continue to work in future? I don't think that > the remote host gets the URL fragment identifier at all so I think it > should be OK, but I haven't really tested that. CRAN maintainers are pretty strict with this kind of stuff: if it works now, it's guaranteed to continue to work. > * Since we need to know the extension, can we expect tar.gz or are there > packages with other archive formats? There are no other formats: every package is tar.gz. But, as I pointed out above, the immutable URL is a redirection to the complete URL, so you can still extract the extension. > > So, I think we can deal but I don't think CRAN considered this point at > all and that's unfortunate. > > - J< -- Iñaki Ucar _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
