public NuGetDownloader(TargetFramework targetFramework, string?outputDir = null,
bool includePrerelease = false, bool recursive = false, bool extract = true,
IEnumerable <string>?sources = null)
: base(sources)
{
TargetFramework = targetFramework;
Recursive = recursive;
Extract = extract;
IncludePrerelease = includePrerelease;
outputDir ??= Directory.GetCurrentDirectory();
(_downloadDir, _extractDir) = extract
? (Path.Combine(Path.GetTempPath(), $"NuGetPackageDownloader.{Guid.NewGuid():N}"), outputDir)
: (outputDir, null);
_framework = targetFramework.ToNuGetFramework();
_project = new FolderNuGetProject(_downloadDir);
var packageSourceProvider = new PackageSourceProvider(Settings);
var sourceRepositoryProvider = new SourceRepositoryProvider(packageSourceProvider, ResourceProviders);
_packageManager = new NuGetPackageManager(sourceRepositoryProvider, Settings, _downloadDir)
{
PackagesFolderNuGetProject = _project,
};
}