Read metadata/license.csv, the registry of dataset licenses
Source: R/citation.R
read_license_registry.RdOne row per SPDX-style id an ingest's dataset_meta.license may carry
(CC-BY-4.0, CC0-1.0, CC-BY-NC-4.0, CC-BY-SA-4.0, US-PD, custom,
unknown, …) with name, url, status (active | deprecated) and
notes. Read strictly (na = "") and validated like every other registry:
sentinel strings, an unknown status or a duplicate id are errors. custom
requires a license_url on the dataset; unknown (or an empty license)
fails the index unless a questions.csv row is open on it — see
check_dataset_citation().
Value
A tibble, all columns character.