From b402f4ee34d35f9b934b5449d2cc419dc287895e Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Thu, 1 Mar 2018 14:54:55 +0100
Subject: import: cpan: Drop "v" prefix from version strings.
Fixes <https://bugs.gnu.org/30641>.
Reported by Oleg Pykhalov <go.wigust@gmail.com>.
* guix/import/cpan.scm (cpan-version): Drop the "v" prefix when it is
there.
---
guix/import/cpan.scm | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/guix/import/cpan.scm b/guix/import/cpan.scm
index 2ef02c43a4..58c051e283 100644
--- a/guix/import/cpan.scm
+++ b/guix/import/cpan.scm
@@ -131,7 +131,11 @@ or #f on failure. MODULE should be e.g. \"Test::Script\""
;; version is sometimes not quoted in the module json, so it gets
;; imported into Guile as a number, so convert it to a string.
(number->string version))
- (version version)))
+ (version
+ ;; Sometimes we get a "v" prefix. Strip it.
+ (if (string-prefix? "v" version)
+ (string-drop version 1)
+ version))))
(define (perl-package)
"Return the 'perl' package. This is a lazy reference so that we don't
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