R/onAttach.R

In SantanderMetGroup/loadeR.ECOMS: A loadeR extension for accessing the ECOMS User Data Gateway (<http://meteo.unican.es/ecoms-udg>)

.onAttach <- function(...) {
      pkgname <- "loadeR.ECOMS"
      # lib <- system.file(package = pkgname)
      ver <- utils::packageDescription(pkgname)$Version
      builddate <- utils::packageDescription(pkgname)$Date
      mess <- paste(pkgname, " version ", ver, " (", builddate,") is loaded", sep = "")
      packageStartupMessage(mess)
      url <- paste0("https://raw.githubusercontent.com/SantanderMetGroup/", pkgname, "/master/DESCRIPTION")
      con <- tryCatch(getURL(url, ssl.verifypeer = FALSE), error = function(er) {
            er <- NULL
            return(er)
      })
      if (!is.null(con)) {
            b <- readLines(textConnection(con))
            latest.ver <- package_version(gsub("Version: ", "", b[grep("Version", b)]))
            if (ver < latest.ver) {
                  ver.mess1 <- paste0("WARNING: Your current version of ", pkgname, " (v", ver, ") is not up-to-date")
                  ver.mess <- paste0("Get the latest stable version (", latest.ver,
                                     ") using <devtools::install_github('SantanderMetGroup/", pkgname, "')>")
                  packageStartupMessage(ver.mess1)
                  packageStartupMessage(ver.mess)
            }
      }
      packageStartupMessage("Please use 'citation(\"", pkgname, "\")' to cite this package.")
}
# End