#823 Proposal: Use immutable CRAN URLs
Opened a year ago by iucar. Modified 18 days ago

Currently, most of the R packages included in Fedora use the following lines in the SPEC:

URL: https://cran.r-project.org/web/packages/%{packname}/
Source0: https://cran.r-project.org/src/contrib/%{packname}_%{version}.tar.gz

This URL format is not recommended by CRAN, but more importantly, the Source0 format does not work anymore, as this contributor noted, when a new version is released. However, there is an immutable format available, as Kurt Hornik pointed out. So my proposal is to use always the following lines instead:

URL: https://cran.r-project.org/package=%{packname}
Source0: %{url}&version=%{version}

@tibbs proposed a new macro for this, something like %r_source, similar to the existing %pypi_source macro in Python.

My proposal would be %cran_source instead, and %cran_url for the URL field:

URL: %cran_url
Source0: %cran_source

Or we can go one step further and set a new macro called %cran_origin, for instance, which would directly resolve into the above two lines.

The good news is that I've checked and the use of %packname is adhered by all packages. So, for the new macro(s), the name of the R package should default to %packname if defined, and the version, to %version. Then a mass change should be straightforward.


Metadata Update from @tibbs:
- Issue assigned to tibbs

11 months ago

I've been working on providing these macros. Just working with the CRAN folks to make sure that what we use is acceptable before incorporating them.

Metadata Update from @tibbs:
- Issue priority set to: In Committee (was: Needs Review)

11 months ago

I haven't forgotten about this, but I've been mostly unable to work on Fedora things for about three weeks now. With the holidays coming up I will be off for a couple of weeks and may be able to find some time to work on this again.

I'm in a similar situation. I'll try to find some time to test the macros and give some feedback in the next couple of weeks.

The R guidelines in #919 include these immutable URLs and I sent a PR to R2spec to generate specs that way.

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