Resolve the most recent CRAN version(s) of a package from CRAN metadata

Drop-in replacement for a GitHub tag lookup on CRAN packages. Returns the current version (from PACKAGES) plus, when more than one is requested, archived versions (from Meta/archive.rds), newest first.

Usage

fetch_cran_versions(
  package_name,
  tag_limit = 1L,
  cran = "https://cloud.r-project.org"
)

Arguments

package_name

CRAN package name.

tag_limit

Maximum number of versions to return, newest first.

cran

CRAN mirror base URL.

Value

Character vector of version strings (length <= tag_limit), or an empty character vector when CRAN knows nothing about the package.