/// <summary>
/// Returns download information for the installation archive asset corresponding to
/// the current platform contained within <paramref name="release"/>.
/// </summary>
/// <param name="release">The Github release to return download information for.</param>
public static DownloadInfo GetDownloadInfoForAsset(GithubRelease release)
{
string assetName = "";
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
assetName = "win-x64.zip";
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
assetName = "linux-x64.zip";
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
assetName = "osx-x64.zip";
}
else
{
return(null);
}
var asset = release.assets.Where(x => x.name.Contains(assetName))?.First();
if (asset == null)
{
throw new Exception($"Github asset \"{assetName}\" not available!");
}
return(new DownloadInfo
{
DownloadSize = Math.Round((asset.size / 1024M) / 1024M, 2),
DownloadUrl = asset.browser_download_url
});
}
#pragma warning disable 1998
/// <summary>
/// Downloads the zip archive of the latest release to a local file and
/// returns the full path to that file.
/// </summary>
/// <param name="release">The release to download the installation archive for.</param>
/// <param name="progress">An optional progress object to receive download progress notifications.</param>
/// <returns>Returns the full file path of the downloaded file.</returns>
public async static Task <string> DownloadRelease(GithubRelease release, IProgress <KeyValuePair <int, string> > progress = null)
{
return(await Task.Run(async() =>
{
AutoResetEvent downloadComplete = new AutoResetEvent(false);
bool success = false;
var wc = new WebClient
{
CachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.NoCacheNoStore)
};
AddHeaders(wc);
if (progress != null)
{
wc.DownloadProgressChanged += ((s, e) =>
{
decimal doneMB = Math.Round(e.BytesReceived / 1024M / 1024M, 2);
decimal totalMB = Math.Round(e.TotalBytesToReceive / 1024M / 1024M, 2);
string msg = _loc.GetLocalizationValue("InstallStatusDownloading") +
$" {doneMB}/{totalMB} MB";
progress.Report(new KeyValuePair <int, string>(e.ProgressPercentage, msg));
});
}
wc.DownloadFileCompleted += ((s, e) =>
{
success = (!e.Cancelled && e.Error == null);
downloadComplete.Set();
});
var downloadLink = CommonUtils.GetDownloadLinkByPlatform(release);
var fileName = Path.GetFileName(downloadLink);
var tempFilePath = Path.GetTempFileName();
try
{
wc.DownloadFileAsync(new Uri(downloadLink), tempFilePath);
downloadComplete.WaitOne();
return success ? tempFilePath : null;
}
catch (Exception ex)
{
Log.Error($"Error downloading \"{downloadLink}\":\r\n{ex}");
return null;
}
}));
}
/// <summary>
/// Returns the download link for the installation archive of the given <paramref name="release"/>.
/// </summary>
/// <param name="release">The release for which the download link should be returned.</param>
public static string GetDownloadLinkByPlatform(GithubRelease release)
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
return(release.assets.Where(x => x.name.Contains("win-x64.zip")).First().browser_download_url);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
return(release.assets.Where(x => x.name.Contains("osx-x64.zip")).First().browser_download_url);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
return(release.assets.Where(x => x.name.Contains("linux-x64.zip")).First().browser_download_url);
}
return("");
}
