Cleans up the autoharp output directory.
clean_dir(dir_name, verbose = FALSE)
The directory containing the files to be cleaned.
If TRUE, then the files and directories being removed will be printed.
When batch rendering Rmd files, it is inevitable that some files fail. These files would have their knit.md and utf.md present, but they would not have a corresponding html file generated.
This function is called for its' side-effect, to remove those lonely md files.
If this clean-up is not done, when we try to re-run the files (perhaps with some of the errors fixed), these straggling md files will cause problems. The most crucial one is that the Rmd files will not be re-knitted, even though they have been changed.
No return value.