[bug#67009] [PATCH v4] build: minetest-build-system: Improve white space handling in mod name field.

[Tristan Cottam]

Fixes certain Minetest mods (such as minetest-ambience) being stored
with a terminating carriage return in their sub-directory base name.

* guix/build/minetest-build-system.scm (name-regexp): Only match
graphical characters in the name sub-match.

Change-Id: I95f4c201724991a10efba5c859bfef99779ea495
---

I'm unsure exactly how I should refer to a Minetest mod which has yet
to be packaged for Guix, so I used the would-be package name of one
such mod, which I will contribute along with many others shortly.

 guix/build/minetest-build-system.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/guix/build/minetest-build-system.scm 
b/guix/build/minetest-build-system.scm
index 4a7a87ab83..3bf083e004 100644
--- a/guix/build/minetest-build-system.scm
+++ b/guix/build/minetest-build-system.scm
@@ -126,7 +126,8 @@ (define* (minimise-png #:key inputs native-inputs 
#:allow-other-keys)
                    (/ total-old-size (expt 1024 2))
                    (/ total-new-size (expt 1024 2)))))))
 
-(define name-regexp (make-regexp "^name[ ]*=(.+)$"))
+(define name-regexp
+  (make-regexp "^name[[:space:]]*=[[:space:]]*([[:graph:]]+)[[:space:]]*$"))
 
 (define* (read-mod-name mod.conf #:optional not-found)
   "Read the name of a mod from MOD.CONF.  If MOD.CONF

base-commit: b0bfddd7f937fcefdaeb1de4ccafd415c1df4122
-- 
2.41.0