Adds the necessary infrastructure to declare your package as licensed with one of four popular open source license:
CC0: dedicated to public domain. Appropriate for data packages.
MIT: simple and permissive.
Apache 2.0: provides patent protection.
GPL v3: requires sharing of improvements.
See https://choosealicense.com for more details and other options.
use_mit_license(name = find_name()) use_gpl3_license(name = find_name()) use_apl2_license(name = find_name()) use_cc0_license(name = find_name())
Name of the copyright holder or holders. Separate multiple
CRAN does not allow you to include copies of standard licenses in your
package, so these functions save the license as
LICENSE.md and add it