REQ - Add guidance for installing packages on the new workbench using the saved CSV

[Moohan]

A suggestion is here, probably including just Option 1 is simplest, but I wasn't sure why the versions of packages were saved in the CSV... I used pak as it allows installing package versions as a vector, whereas remotes can only do one at a time.

load_path <- rstudioapi::selectFile(
  caption = "Select location to load CSV file",
  label = "Load",
  existing = TRUE,
  filter = "CSV files (*.csv)"
)

package_info <- read.csv(load_path)

# Set installs to use multiple cores (should be faster)
install.packages("parallelly")
available_cores <- as.numeric(parallelly::availableCores())
options(Ncpus = available_cores)
Sys.setenv(MAKEFLAGS = paste("-j", as.character(available_cores), sep = ""))

# Option 1 - Install the latest version of all packages
install.packages(package_info[["Package"]])

# Option 2 - Install matching versions of the packages
# This may not work as some old versions might be incompatible with the latest R version
install.packages("pak")
paste(package_info[["Package"]], package_info[["Version"]], sep = "@") |> 
  pak::pkg_install()

# This can also be used for PHS packages
paste0(
  "Public-Health-Scotland/", 
       c("phsopendata", "phsstyles", "phstemplates", "phsverse", "slfhelper")
  ) |> 
  pak::pkg_install()