Updaters need to be modified to return 'git-reference' objects.
This patch modifies the 'generic-git' and 'minetest' updater,
but others might need to be modified as well.
* guix/git.scm (git-reference->git-checkout): New procedure.
* guix/upstream.scm (package-update/git-fetch): New procedure.
(<upstream-source>)[urls]: Document it can be a 'git-reference'.
(%method-updates): Add 'git-fetch' mapping.
(update-package-source): Support 'git-reference' sources.
(upstream-source-compiler/url-fetch): Split off from ...
(upstream-source-compiler): ... this, and call ...
(upstream-source-compiler/git-fetch): ... this new procedure if the URL
field contains a 'git-reference'.
* guix/import/git.scm
(latest-git-tag-version): Always return two values and document that the tag
is returned as well.
(latest-git-release)[urls]: Use the 'git-reference' instead of the
repository URL.
* guix/import/minetest.scm (latest-minetest-release)[urls]: Don't wrap the
'git-reference' in a list.
* tests/minetest.scm (upstream-source->sexp): Adjust to new convention.
Co-authored-by: Maxime Devos <maximedevos@telenet.be>
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
9f526f5dad