bool FileFilter(JsonElement file)
{
string GetFilenameSuffix()
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
return(".gz");
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
return(".pkg");
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
return(".exe");
}
throw new PlatformNotSupportedException();
}
return(file.GetProperty("rid").GetString() == _platformIdentifier.GetPlatform() &&
file.GetProperty("name").ToString().EndsWith(GetFilenameSuffix()));
}
public async Task Acquire(string version)
{
var channelVersion = ParseChannelVersion(version);
var platform = _platformIdentifier.GetPlatform();
using var releasesResponse = await JsonDocument.ParseAsync(await _httpClient.GetStreamAsync(ReleaseIndex));
var channel = releasesResponse.RootElement.GetProperty("releases-index").EnumerateArray()
.First(x => x.GetProperty("channel-version").GetString() == channelVersion);
var channelJson = channel.GetProperty("releases.json").GetString();
using var channelResponse = await JsonDocument.ParseAsync(await _httpClient.GetStreamAsync(channelJson));
var file = channelResponse
.RootElement.GetProperty("releases").EnumerateArray()
.SelectMany(x =>
{
IEnumerable <JsonElement> GetSdks()
{
yield return(x.GetProperty("sdk"));
if (x.TryGetProperty("sdks", out var sdks))
{
foreach (var y in sdks.EnumerateArray())
{
yield return(y);
}
}
}
return(GetSdks());
})
.First(x => x.GetProperty("version").GetString() == version)
.GetProperty("files")
.EnumerateArray()
.First(x => x.GetProperty("rid").GetString() == platform);
var name = file.GetProperty("name").GetString();
var installerUrl = file.GetProperty("url").GetString();
var fileHash = file.GetProperty("hash").GetString();
var filePath = Path.Combine(Path.GetTempPath(), name);
using var installerStream = await _httpClient.GetStreamAsync(installerUrl);
using var fileStream = new FileStream(filePath, FileMode.Create);
var progress = new Progress <long>();
var lastReportedBytesMbs = 0;
progress.ProgressChanged += (sender, totalBytes) =>
{
var currentBytesMbs = (int)Math.Floor(totalBytes / Math.Pow(2, 20));
if (currentBytesMbs <= lastReportedBytesMbs)
{
return;
}
lastReportedBytesMbs = currentBytesMbs;
_textWriter.SetCursorPosition(0, Console.CursorTop);
_textWriter.Write($"Downloading: {currentBytesMbs}MB");
};
await CopyToWithProgress(installerStream, fileStream, progress);
CheckHash(filePath, fileHash);
_installerLauncher.Launch(filePath);
}