/// <summary>
/// Creates a file target for log events using the appName prefix, followed by the suffixes
/// joined with dots. Logs are written to the GGP SDK logs directory.
/// </summary>
/// <remarks>Log file names must be unique to this instance of this executable.</remarks>
/// <param name="appName">prefix to uniquely identify this executable</param>
/// <param name="suffixes">one or more strings to uniquely identify this log file</param>
private static FileTarget CreateBaseFileTarget(string appName, params string[] suffixes)
{
if (suffixes.Length < 1)
{
throw new ArgumentException("need at least 1 suffix", nameof(suffixes));
}
var suffix = string.Join(".", suffixes);
var logPath = SDKUtil.GetLoggingPath();
var fileTarget = new FileTarget();
fileTarget.FileName =
string.Format("{0}/{1}.{2}.log", logPath, appName, suffix);
// Set up an archive file name regardless if archiving will be used or not.
// https://github.com/nlog/NLog/wiki/File-target#archival-options
// Note that {{#}} gets converted to {#} in the formatted string, which is then
// replaced by the archive number.
fileTarget.ArchiveFileName =
string.Format("{0}/{1}.{2}.{{#}}.log", logPath, appName, suffix);
// Disable concurrent writes because we always use a unique file for each process.
fileTarget.ConcurrentWrites = false;
return(fileTarget);
}