private void InstallRemotePackages()

in tools/JsonCli/src/Installer.cs [204:267]
52 lines of code
6 McCabe index (conditional complexity)

        private void InstallRemotePackages(List<Package> packages, IList<string> nuGetSources, IList<string> additionalDotNetArguments)
        {
            const string packageRef = @"    <PackageReference Include=""{0}"" Version=""{1}"" />";
            const string projectFile = @"<Project ToolsVersion=""15.0"" Sdk=""Microsoft.NET.Sdk"">
  <PropertyGroup>
    <TargetFrameworks>netcoreapp1.0</TargetFrameworks>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Remove=""Microsoft.NETCore.App"" />
{0}
  </ItemGroup>
</Project>";

            _paths.CreateDirectory(_paths.User.ScratchDir);
            string proj = Path.Combine(_paths.User.ScratchDir, "restore.csproj");
            StringBuilder references = new StringBuilder();

            foreach (Package pkg in packages)
            {
                references.AppendLine(string.Format(packageRef, pkg.Name, pkg.Version));
            }

            string content = string.Format(projectFile, references.ToString());
            _paths.WriteAllText(proj, content);

            string restored = Path.Combine(_paths.User.ScratchDir, "Packages");

            List<string> restoreArgsList = new List<string>();
            restoreArgsList.Add(proj);
            restoreArgsList.Add("--packages");
            restoreArgsList.Add(restored);

            if (nuGetSources != null)
            {
                foreach (string nuGetSource in nuGetSources)
                {
                    restoreArgsList.Add("--source");
                    restoreArgsList.Add(nuGetSource);
                }
            }

            if (additionalDotNetArguments != null)
            {
                restoreArgsList.AddRange(additionalDotNetArguments);
            }

            var restoreArgs = restoreArgsList.ToArray();

            Dotnet.Restore(restoreArgs).ForwardStdOut().ForwardStdErr().Execute();
            string stagingDir = Path.Combine(_paths.User.ScratchDir, "Staging");
            _paths.CreateDirectory(stagingDir);

            List<string> newLocalPackages = new List<string>();
            foreach (string packagePath in _paths.EnumerateFiles(restored, "*.nupkg", SearchOption.AllDirectories))
            {
                string stagingPathForPackage = Path.Combine(stagingDir, Path.GetFileName(packagePath));
                _paths.Copy(packagePath, stagingPathForPackage);
                newLocalPackages.Add(stagingPathForPackage);
            }

            InstallLocalPackages(newLocalPackages, false);
            _paths.DeleteDirectory(_paths.User.ScratchDir);
        }