Every package needs a clear license.
Without a license, the end-users have no clue under what conditions they can
use the package.
You must specify the license in the DESCRIPTION and provide a LICENSE.md
file.
Details
This functions checks if the DESCRIPTION mentions one of the standard
licenses.
The LICENSE.md must match this license.
Use setup_package() to add the correct LICENSE.md to the package.
Currently, following licenses are allowed:
GPL-3
MIT
We will consider pull requests adding support for other open source licenses.
See also
Other package:
check_codemeta(),
check_cran(),
check_description(),
check_documentation(),
check_environment(),
check_package(),
tidy_desc()