R/info-pkgstats.R

In ropenscilabs/pkgcheck: rOpenSci Package Checks

# These functions provide information derived from \pkg{pkgstats} without
# actually being checks

pkginfo_url_from_desc <- function (path, type = "URL") {

    type <- match.arg (type, c ("URL", "BugReports"))

    desc <- fs::path (path, "DESCRIPTION")
    if (!file.exists (desc)) {
        return ("")
    }

    d <- data.frame (
        read.dcf (desc),
        stringsAsFactors = FALSE
    )
    if (!type %in% names (d)) {
        return ("")
    }

    u <- strsplit (d [[type]], "\\s+") [[1]]
    u <- grep ("^https", u, value = TRUE)
    if (length (u) > 1) {
        u <- grep ("git", u, value = TRUE)
    }
    if (length (u) > 1) {
        u <- u [which (!grepl ("\\.io", u))]
    }

    u <- gsub (",|\\s+", "", u)

    if (length (u) == 0L) {
        u <- ""
    }

    return (u [1])
}

#' @param s Result of `pkgstats(path)`
#' @noRd
pkginfo_pkg_name <- function (s) {

    s$desc$package
}

pkginfo_pkg_version <- function (s) {

    s$desc$version
}

pkginfo_pkg_license <- function (s) {

    s$desc$license
}

pkginfo_pkgstats_summary <- function (s) {

    pkgstats <- fmt_pkgstats_info (s)

    num_exported_fns <- pkgstats$value [pkgstats$measure == "n_fns_r_exported"]
    num_non_exported_fns <- pkgstats$value [pkgstats$measure ==
        "n_fns_r_not_exported"]
    num_src_fns <- sum (pkgstats$value [pkgstats$measure %in%
        c ("n_fns_src", "n_fns_inst")])
    loc_exported_fns <- pkgstats$value [pkgstats$measure ==
        "loc_per_fn_r_exp"]
    loc_non_exported_fns <- pkgstats$value [pkgstats$measure ==
        "loc_per_fn_r_not_exp"]
    loc_src_fns <- stats::median (pkgstats$value [pkgstats$measure %in%
        c ("loc_per_fn_src", "loc_per_fn_inst")])
    num_params_per_fn <- pkgstats$value [pkgstats$measure ==
        "num_params_per_fn"]

    list (
        num_authors = s$desc$aut,
        num_vignettes = unname (s$vignettes [1]),
        num_data = unname (s$data_stats [1]),
        imported_pkgs = length (strsplit (s$desc$imports, ",") [[1]]),
        num_exported_fns = as.integer (num_exported_fns),
        num_non_exported_fns = as.integer (num_non_exported_fns),
        num_src_fns = as.integer (num_src_fns),
        loc_exported_fns = as.integer (loc_exported_fns),
        loc_non_exported_fns = as.integer (loc_non_exported_fns),
        loc_src_fns = as.integer (loc_src_fns),
        num_params_per_fn = as.integer (num_params_per_fn),
        languages = attr (pkgstats, "language")
    )
}