inst/config/config.R

In leprechaun: Create Simple 'Shiny' Applications as Packages

CONFIG_FILE <- "config.yml"

#' Read Config
#' 
#' @importFrom yaml read_yaml
#' 
#' @keywords internal
config_read <- function(){
	path <- system.file(CONFIG_FILE, package = "#PKGNAME#")
	read_yaml(path)
}

#' Get Value from Configuration
#' 
#' Retrieve a value from the configuration file.
#' 
#' @param value The value to retrieve.
#' @param config The configuration (from [config_read()]),
#' if missing the configuration file is red.
#' 
#' @keywords internal
config_get <- function(value, config = NULL){
	if(missing(value))
		stop("Missing `value`", call. = FALSE)

	if(is.null(config))
		config <- config_read()

	config[[value]]
}