Only detecting updates is currently supported. To actually
perform the uppdates, a patch like
<https://issues.guix.gnu.org/50072#4> is required.
* guix/import/minetest.scm
(version-style,minetest-package?,latest-minetest-release): New procedures.
(%minetest-updater): New updater.
* tests/minetest.scm
(upstream-source->sexp,expected-sexp,example-package): New procedure.
(test-release,test-no-release): New macro's.
("same version","new version (dotted)","new version (date)")
("new version (git -> dotted)","dotted->date","date->dotted")
("no commit informaton, no new release")
("minetest is not a minetest mod")
("technic is a minetest mod")
("upstream-name is required"): New tests.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
