Dry run of package installation — conan

Dry run of package installation.

conan_dryrun(
  packages,
  policy = "upgrade",
  repos = NULL,
  cran = NULL,
  lib = NULL,
  error = TRUE
)

Arguments

packages: A character vector of packages to install. These can be names of CRAN packages or GitHub references etc; see pkgdepends::new_pkg_installation_proposal() for more details
policy: Should be either "lazy" or "upgrade", with a default of "upgrade"
repos: A character vector of repositories to use when installing. A suitable CRAN repo will be added if not detected (using the cran argument if provided)
cran: Fallback CRAN repo to use. If not given we will use https://cloud.r-project.org
lib: The path to install into. We will create a self-contained library at this address.
error: Logical, indicating if error should be thrown on failure. If FALSE then we return the proposal object instead.

Invisibly, the resolution

if (FALSE) { # nzchar(Sys.getenv("R_USER_CACHE_DIR"))
conan::conan_dryrun("cpp11")
}