Subject: [PATCH 2/4] guix: lint: Slightly simplify `check-source-file-name'.

From: Arun Isaac <[email-masked]>
Date: Wed, 17 May 2017 22:22:44 +0530

* guix/scripts/lint.scm (check-source-file-name): Implement file name matching
  with regular expression.
---
 guix/scripts/lint.scm | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/guix/scripts/lint.scm b/guix/scripts/lint.scm
index 2b0071475..1d930d8c0 100644
--- a/guix/scripts/lint.scm
+++ b/guix/scripts/lint.scm
@@ -672,11 +672,10 @@ descriptions maintained upstream."
     (let ((file-name (origin-actual-file-name origin))
           (version (package-version package)))
       (and file-name
-           (not (or (string-prefix? version file-name)
-                    ;; Common in many projects is for the filename to start
-                    ;; with a "v" followed by the version,
-                    ;; e.g. "v3.2.0.tar.gz".
-                    (string-prefix? (string-append "v" version) file-name))))))
+           ;; Common in many projects is for the filename to start
+           ;; with a "v" followed by the version,
+           ;; e.g. "v3.2.0.tar.gz".
+           (not (string-match (string-append "^v?" version) file-name)))))
 
   (let ((origin (package-source package)))
     (unless (or (not origin) (origin-file-name-valid? origin))
-- 
2.12.2