build_dir: Build all Rmd files under a directory
In blogdown: Create Blogs and Websites with R Markdown

build_dir

R Documentation

Build all Rmd files under a directory

List all Rmd files recursively under a directory, and compile them using rmarkdown::render().

build_dir(dir = ".", force = FALSE, ignore = "[.]Rproj$")

`dir`	A directory path.
`force`	Whether to force building all Rmd files. By default, an Rmd file is built only if it is newer than its output file(s).
`ignore`	A regular expression to match output filenames that should be ignored when testing if the modification time of the Rmd source file is newer than its output files.