-if (require("knitr")) {
- if (packageVersion("knitr") < '1.9.19') {
- stop("knitr must be version 1.9.20 or higher")
- }
-} else stop("knitr 1.9.20 or above is needed to build the lessons.")
+generate_md_episodes <- function() {
-if (!require("stringr"))
- stop("The package stringr is required for generating the lessons.")
+ if (require("knitr")) {
+ if (packageVersion("knitr") < '1.9.19') {
+ stop("knitr must be version 1.9.20 or higher")
+ }
+ } else stop("knitr 1.9.20 or above is needed to build the lessons.")
-src_rmd <- list.files(pattern = "??-*.Rmd$", path = "_episodes_rmd", full.names = TRUE)
-dest_md <- file.path("_episodes", gsub("Rmd$", "md", basename(src_rmd)))
+ if (!require("stringr"))
+ stop("The package stringr is required for generating the lessons.")
-mapply(function(x, y) {
+ ## where the Rmd files and the datasets are located
+ rmd_path <- "_episodes_rmd"
+ rmd_data <- file.path(rmd_path, "data")
+
+ ## where the markdown files and the datasets will end up
+ dest_path <- "_episodes"
+ dest_data <- file.path(dest_path, "data")
+
+ ## find all the Rmd files, and generates the paths for their respective outputs
+ src_rmd <- list.files(pattern = "??-*.Rmd$", path = rmd_path, full.names = TRUE)
+ dest_md <- file.path(dest_path, gsub("Rmd$", "md", basename(src_rmd)))
+
+ ## knit the Rmd into markdown
+ mapply(function(x, y) {
knitr::knit(x, output = y)
}, src_rmd, dest_md)
+
+
+ ## copy the datasets from _episodes_rmd/data to _episodes/data
+ rmd_data_files <- list.files(path = rmd_data, full.names = TRUE)
+ dest_data_files <- file.path(dest_data, basename(rmd_data_files))
+
+ if (!dir.exists(file.path(dest_data)))
+ dir.create(file.path(dest_data))
+
+ apply(cbind(rmd_data_files, dest_data_files), 1,
+ function(x) file.copy(x[1], x[2]))
+}
+
+generate_md_episodes()