Query for System Requirements — query_sysreqs • rang

This function takes an S3 object returned from resolve() and (re)queries the System Requirements.

Usage

query_sysreqs(rang, os = "ubuntu-20.04")

Arguments

rang: output from resolve()
os: character, which OS to query for system requirements

Value

a rang S3 object with the following items

call: original function call
ranglets: List of dependency graphs of all packages in pkgs
snapshot_date: snapshot_date
no_enhances: no_enhances
no_suggests: no_suggests
unresolved_pkgsrefs: Packages that can't be resolved
sysreqs: System requirements as Linux commands
r_version: The latest R version as of snapshot_date
os: os

See also

Examples

# \donttest{
if (interactive()) {
    graph <- resolve(pkgs = c("openNLP", "LDAvis", "topicmodels", "quanteda"),
                snapshot_date = "2020-01-16", query_sysreqs = FALSE)
    graph$sysreqs
    graph2 <- query_sysreqs(graph, os = "ubuntu-20.04")
    graph2$sysreqs
}
# }