all_files_new: Check if all files in a directory are new
Description
Tests whether all the files in a given directory have a modification date
equal to the system date. Useful when repeatedly running code with a lengthy
download stage. Many state databases are updated daily, so new data can be
helpful but not always necessary. Set this function in an if statement.
Usage
all_files_new(path, glob = NULL, ...)
Value
logical; Whether all() files in the directory have a modification
date equal to today.