saveFile method
Saves the file in the vault.
Implementation
File saveFile(File file, {String? filename}) {
unlock();
final outFile = filename != null
? location.file(filename)
: location.file('${file.name}.gpg');
if (!outFile.path.endsWith('.gpg')) {
throw 'Files in vault are required to end with ".gpg". '
'"$filename" does not';
}
if (!file.existsSync()) {
if (file.isAbsolute) {
throw "${file.path} does not exist";
} else {
throw "${file.path} does not exist in ${Directory.current.path}";
}
}
return gpgEncrypt(file, _passphrase!, output: outFile);
}