Plan to include slidify

[Tyler Rinker]

The slidify package may not go to CRAN. As such the following may be an approach to incorporate slidify into reports while maintaining reports on CRAN.

Like the gender package that relies on a git_hub database package I could do the same with slidify/slidifyLibraries. This would require checking for slidify/slidifyLibraries when a function that uses them may be called (new_report, presentation). This is the gender package's approach:

# If we need the genderdata package, check that it is installed
  if(!method %in% c("demo", "genderize")) {
    gender::check_genderdata_package()
  }

Followed by:

#' Check whether to install data for gender function and install if necessary
#'
#' If the genderdata package is not installed, install it from GitHub using
#' devtools. If it is not up to date, reinstall it.
#' @export
check_genderdata_package <- function() {
  genderdata_version <- "0.1"
  if (! "genderdata" %in% utils::installed.packages()) {
    message("The genderdata package needs to be installed from GitHub.")
    gender::install_genderdata_package()
  } else if (utils::packageVersion("genderdata") < genderdata_version) {
    message("The genderdata package needs to be updated from GitHub.")
    gender::install_genderdata_package()
  }
}

#' Install the genderdata package after checking with the user
#' @export
install_genderdata_package <- function() {
  input <- menu(c("Yes", "No"), title = "Install the genderdata package?")
  if (input == 1) {
    message("Installing the genderdata package.")
    tryCatch(devtools::install_github("lmullen/gender-data-pkg"),
             error = function(e) {
      stop("Failed to install the genderdata package. Please try installing
            the package for yourself using the following command:
            \n
            devtools::install_github(\"lmullen/gender-data-pkg\")")
    })
  } else {
    stop("The genderdata package is necessary for your chosen method.")
  }
}

To quasi-Depends on slidify I could use .onLoad to check for slidify in local library and if installed load it.

[Ramnath Vaidyanathan]

@trinker Apologies for the delayed reply. Slidify will go on CRAN. I will update you with a timeline.

[Tyler Rinker]

@ramnathv Cool thanks for the update. I know you have a ton going.