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2017-04-17_hpc-intro/bin/generate_md_episodes.R
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generate_md_episodes <- function() { | |
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.") | |
if (!require("stringr")) | |
stop("The package stringr is required for generating the lessons.") | |
## 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() |