bug#37392: [PATCH] gnu: Add r-assertr

[Ricardo Wurmus <rekado@elephly.net>]

Hi Wiktor,

> * gnu/packages/cran.scm (r-assertr): New variable

Thank you for your patch!

I made a couple of minor changes before pushing it to the repository’s
master branch.

> +(define-public r-assertr
> +  (package
> +    (name "r-assertr")
> +    (version "2.6")
> +    (source
> +     (origin
> +       (method url-fetch)
> +       (uri (cran-uri "assertr" version))
> +       (sha256
> +        (base32
> +         "0g4ii6vhp0155a29ljhs64a09x0nzy5ybvwwchhk4mkcgsvnvfkj"))))
> +    (build-system r-build-system)
> +    (propagated-inputs
> +     `(("r-dplyr" ,r-dplyr)
> +       ("r-knitr" ,r-knitr)             ; needed for vignette

I moved this to native-inputs, because it is not needed at runtime.

> +    (synopsis "Assertive Programming for R Analysis Pipelines")

I changed this to use lower case.

> +    (description
> +     "Provides functionality to assert conditions that have to be met so that
> +errors in data used in analysis pipelines can fail quickly.  Similar to
> +@code{stopifnot()} but more powerful, friendly, and easier for use in
> +pipelines.")

I used full sentences here.

> +    (license (license:fsf-free "https://cran.r-project.org/web/licenses/MIT"))))

This is the Expat license, so I changed it to license:expat.

I also added punctuation to the commit message.

Thank you for your contribution and welcome to Guix!

-- 
Ricardo