DeleteDir deletes the directory at the given path.

ExpandFileList takes a list of file globs and expands them into a list of matching file paths.

IsDir returns whether the given path is a directory.

IsDirEmpty checks if the directory at the given path is empty.

ReadStringOrFile returns the content of a string or a file if the file exists.

WriteTmpFile creates a temporary file with the given name and content, and returns the path to the created file.