import: cran: Robustify cran-package?.

* guix/import/cran.scm (package->upstream-name): Return #f if url
  start and end index could not be determined.
  (cran-package?): Check if the upstream-name can be extracted from
  given package.
* tests/cran.scm: Add "r-minimal is not a cran package" to make sure that
  r-minimal is not detected as a cran package.

This fixes a failure of guix refresh on r-minimal because no
upsteam-name can be determined from ".../R-version.tar.gz" uri.
This commit is contained in:
Mathieu Othacehe 2017-05-04 11:52:33 +02:00
parent a5e8f5972c
commit db427602d8
No known key found for this signature in database
GPG Key ID: 8354763531769CA6
2 changed files with 11 additions and 1 deletions

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@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2016, 2017 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -374,7 +375,7 @@ dependencies."
(start (string-rindex url #\/)))
;; The URL ends on
;; (string-append "/" name "_" version ".tar.gz")
(substring url (+ start 1) end)))
(and start end (substring url (+ start 1) end))))
(_ #f)))
(_ #f)))))
@ -415,6 +416,9 @@ dependencies."
(define (cran-package? package)
"Return true if PACKAGE is an R package from CRAN."
(and (string-prefix? "r-" (package-name package))
;; Check if the upstream name can be extracted from package uri.
(package->upstream-name package)
;; Check if package uri(s) are prefixed by "mirror://cran".
(match (and=> (package-source package) origin-uri)
((? string? uri)
(string-prefix? "mirror://cran" uri))

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@ -1,5 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -17,6 +18,7 @@
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (test-cran)
#:use-module (gnu packages statistics)
#:use-module (guix import cran)
#:use-module (guix tests)
#:use-module (srfi srfi-1)
@ -86,6 +88,10 @@ Date/Publication: 2015-07-14 14:15:16
'()
((@@ (guix import cran) listify) simple-alist "BadList"))
(test-equal "r-mininal is not a cran package"
#f
((@@ (guix import cran) cran-package?) r-minimal))
(test-assert "description->package"
;; Replace network resources with sample data.
(mock ((guix build download) url-fetch