private static async Task <(Release latestVersion, Release latestBetaVersion)> GetLatestReleases()
{
Release latestVersion = null;
Release latestBetaVersion = null;
try
{
JArray gitHubInfo = null;
await HttpHelper.RetryOnExceptionAsync <Exception>
(3, TimeSpan.FromSeconds(2), GITHUB_RELEASES_API_URL, async() =>
{
WebClient client = new WebClient();
client.Headers.Add("user-agent", TVSettings.USER_AGENT);
Task <string> response = client.DownloadStringTaskAsync(GITHUB_RELEASES_API_URL);
gitHubInfo = JArray.Parse(await response.ConfigureAwait(false));
}).ConfigureAwait(false);
if (gitHubInfo is null)
{
Logger.Error("Failed to contact GitHub to identify new releases - no exception raised");
return(null, null);
}
foreach (JObject gitHubReleaseJson in gitHubInfo.Children <JObject>())
{
try
{
if (!gitHubReleaseJson["assets"].HasValues)
{
continue; //we have no files for this release, so ignore
}
Release testVersion = ParseFromJson(gitHubReleaseJson);
(latestBetaVersion, latestVersion) = UpdateLatest(testVersion, latestBetaVersion, latestVersion);
}
catch (NullReferenceException ex)
{
Logger.Error("Looks like the JSON payload from GitHub has changed");
Logger.Debug(ex, gitHubReleaseJson.ToString());
}
catch (ArgumentOutOfRangeException ex)
{
Logger.Debug("Generally happens because the release did not have an exe attached");
Logger.Debug(ex, gitHubReleaseJson.ToString());
}
}
if (latestVersion is null)
{
Logger.Error("Could not find latest version information from GitHub: {0}", gitHubInfo.ToString());
return(null, latestBetaVersion);
}
if (latestBetaVersion is null)
{
Logger.Error("Could not find latest beta version information from GitHub: {0}", gitHubInfo.ToString());
return(latestVersion, null);
}
}
catch (WebException wex)
{
if (wex.IsUnimportant())
{
Logger.Warn($"Failed to contact GitHub to identify new releases {wex.LoggableDetails()}");
}
else
{
Logger.Error($"Failed to contact GitHub to identify new releases {wex.LoggableDetails()}");
}
}
catch (Exception e)
{
Logger.Error(e, "Failed to contact GitHub to identify new releases");
}
return(latestVersion, latestBetaVersion);
}