check_file_exists function

Check if file already exists

Provide an error message when a file is declared for writing that already exists.

check_file_exists(file, overwrite, call = caller_env())

Arguments

• file: The file that is being checked
• overwrite: Whether the file was declared to be overwritten
• call: The calling environment to use in the error message

Returns

An error message saying the requested file already exists

Details

In the case of write_redcap_xlsx(), this should only error when a file already exists and is not declared for overwite.