I missed the example in my last email. Here it is: $ curl -I "https://cran.r-project.org/package=simmer&version=3.0.0"; HTTP/1.1 303 See Other Date: Wed, 31 Oct 2018 17:39:46 GMT Server: Apache/2.4.10 (Debian) Location: https://cran.r-project.org/src/contrib/Archive/simmer/simmer_3.0.0.tar.gz Content-Type: text/html; charset=iso-8859-1 That was an old version. The newest one: $ curl -I "https://cran.r-project.org/package=simmer&version=4.0.1"; HTTP/1.1 303 See Other Date: Wed, 31 Oct 2018 17:40:42 GMT Server: Apache/2.4.10 (Debian) Location: https://cran.r-project.org/src/contrib/simmer_4.0.1.tar.gz Content-Type: text/html; charset=iso-8859-1 On Wed, 31 Oct 2018 at 18:32, Iñaki Ucar <iucar@xxxxxxxxxxxxxxxxx> wrote: > > 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 -- 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
