It would be good to clarify the defaults for these in the readme:
forceDelete: bool, // Whether to overwrite existing directory or not
excludeHiddenUnix: bool, // Whether to copy hidden Unix files or not (preceding .)
preserveFiles: bool, // If we're overwriting something and the file already exists, keep the existing
preserveTimestamps: bool, // Preserve the mtime and atime when copying files
inflateSymlinks: bool, // Whether to follow symlinks or not when copying files
whitelist: bool, // if true every file or directory which doesn't match filter will be ignored
It would be good to clarify the defaults for these in the readme: