This is a NodeJS script that verifies is a file/directory only contains UTF-8 encoded characters
npm start <pathToValidate>
This will print the absolute paths of non UTF-8 file on the standard output for easy redirection. Path that refer to binary files or that can't be read will be printed on the standard error output with a short error message
.utf8-ignore - You can create a '.utf8-ignore' file in your working directory containing paths to ignore, these paths are relative to pwd but can also be absolute. The content of this file should be in UTF-8.
This script uses utf-8-validate and isbinaryfile node modules