* guix/import/crate.scm (crate-package?, latest-release, %crate-updater): New variables. * guix/scripts/refresh.scm (%updaters): Add crate updater. * doc/guix.texi: Add crate updater to table.
* guix/import/crate.scm: New file. * guix/scripts/import/crate.scm: New file. * guix/scripts/import.scm (importers): Add crate importer. * tests/crate.scm: New file. * doc/guix.texi: Add crate importer to table. * Makefile.am (MODULES, SCM_TESTS): Add files.