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How to copy a file to the package /bin folder using the r-build-system?
From: |
Kyle Andrews |
Subject: |
How to copy a file to the package /bin folder using the r-build-system? |
Date: |
Fri, 31 Mar 2023 23:21:18 +0000 |
Dear Guix,
I want to package the littler R package.
Unlike most R packages, this one provides an executable (a little r to
complement the big R) that should go on the PATH rather than be tucked
away into site-library where it cannot be used. Surprisingly, to me,
when the command below fails ...
```
guix build -K -f littler.scm
```
... the resulting temporary directory skips directly to the littler
folder wheras the /gnu/store builds show the output inside of
site-library. The /tmp output also looks different, lacking a bin/
folder like in the /gnu/store/*littlr* builds.
How do I go about getting r out of site-library/littler/bin/r in there
using the r-build-system?
Here is what I have right now:
```
(use-modules
(guix packages)
(guix download)
(gnu packages statistics)
(gnu packages compression)
(gnu packages icu4c)
(guix gexp)
(guix build-system r)
(gnu packages cran)
(gnu packages autotools)
((guix licenses) #:prefix license:))
(define-public r-littler
(package
(name "r-littler")
(version "0.3.18")
(source (origin
(method url-fetch)
(uri (cran-uri "littler" version))
(sha256
(base32
"1lp6a62g3yhzr4pv9kynibv7k9pd546w6hifs1aficyxbyg4dgqq"))))
(properties `((upstream-name . "littler")))
(build-system r-build-system)
(arguments
(list
#:phases
#~(modify-phases %standard-phases
(add-after 'install 'add-to-path
(lambda* (#:key inputs outputs #:allow-other-keys)
(let ((out (assoc-ref outputs "out")))
;;; TODO: this doesn't work!
;; copy site-library/littler/bin/r to bin/r
(copy-file
(string-append out "site-library/littler/src/r")
(string-append out "/bin/r"))))))))
(inputs (list icu4c))
(native-inputs (list r-simplermarkdown automake autoconf zlib))
(home-page "https://github.com/eddelbuettel/littler")
(synopsis "R at the Command-Line via 'r'")
(description
"This package provides a scripting and command-line front-end is provided
by r
(aka littler') as a lightweight binary wrapper around the GNU R language and
environment for statistical computing and graphics. While R can be used in
batch mode, the r binary adds full support for both shebang'-style scripting
(i.e. using a hash-mark-exclamation-path expression as the first line in
scripts) as well as command-line use in standard Unix pipelines. In other
words, r provides the R language without the environment.")
(license license:gpl2+)))
;; (packages->manifest (list r r-littler))
r-littler
```
I'm grateful for any assistance!
Best Regards,
Kyle
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