public static void Update(GithubReleaseAsset release, IProgress <float> progressListener)
{
using var httpClient = new HttpClient()
{
BaseAddress = GithubAPIURL
};
// needed or github won't accept API requests, they claim it's to contact people if there's a problem
httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("AutoUpdater-by-rotobash");
// also github, adding this say we want the uploaded asset instead of metadata
httpClient.DefaultRequestHeaders.Accept.ParseAdd("application/octet-stream");
// use HttpCompletionOptions to get progress reports
var responseTask = httpClient.GetAsync($"{GithubReleaseAssetEndpoint}/{release.id}", HttpCompletionOption.ResponseHeadersRead);
responseTask.Wait();
var response = responseTask.Result;
var bytesReadTotal = 0;
var bytesTotal = release.size;
if (response.IsSuccessStatusCode)
{
// get access to the underlying stream data, we requested the actual asset so we know we're getting a file
var responseBodyTask = response.Content.ReadAsStreamAsync();
responseBodyTask.Wait();
using var httpStream = responseBodyTask.Result;
using var fileStream = File.OpenWrite(release.name);
// buffer http stream into file as we read it, report progress if it was passed
byte[] buffer = new byte[0x8000];
while (true)
{
var bytesRead = httpStream.Read(buffer, 0, Math.Min(buffer.Length, bytesTotal - bytesReadTotal));
if (bytesRead == 0)
{
progressListener?.Report(1);
return;
}
bytesReadTotal += bytesRead;
fileStream.Write(buffer, 0, bytesRead);
progressListener?.Report((float)bytesReadTotal / bytesTotal);
}
}
}
