internal static string FindLatestDbVersion(S3Token token, RestClient rest)
{
// TODO: Sort out binary/text Get
var info = GetS3Object("1/spc.info", token, "the database info", rest).ToUtf8();
var re = new Regex(@"VERSION\s+(\d+)");
var m = re.Match(info);
if (!m.Success)
{
throw new InternalErrorException("Invalid database info format");
}
return(m.Groups[1].Value);
}
private static byte[] GetS3Object(string filename, S3Token token, string name, RestClient rest)
{
return(S3.GetObject(token.BucketName, token.ObjectPrefix + filename, token.Credentials, rest));
}
internal static byte[] DownloadDb(string version, S3Token token, RestClient rest)
{
var db = GetS3Object($"1/db_{version}.dmp", token, "the database", rest);
return(Inflate(db, "the database"));
}
internal static byte[] DownloadLatestDb(S3Token token, RestClient rest)
{
var version = FindLatestDbVersion(token, rest);
return(DownloadDb(version, token, rest));
}
// This functions finds out what the latest version of the database is and downloads
// it from S3.
internal static byte[] DownloadLatestDb(S3Token token, IRestTransport transport)
{
return(DownloadLatestDb(token, new RestClient(transport)));
}
