if (buildExtensionsDir == null)
{
    buildExtensionsDir = Path.Combine(Path.GetDirectoryName(file), "obj");
}

Directory.CreateDirectory(buildExtensionsDir);

var efTargetsPath = Path.Combine(
    buildExtensionsDir,
    Path.GetFileName(file) + ".EntityFrameworkCore.targets");
using (var input = typeof(Resources).GetTypeInfo().Assembly.GetManifestResourceStream(
    "Microsoft.EntityFrameworkCore.Tools.Resources.EntityFrameworkCore.targets"))
using (var output = File.OpenWrite(efTargetsPath))
{
    // NB: Copy always in case it changes
    Reporter.WriteVerbose(Resources.WritingFile(efTargetsPath));
    input.CopyTo(output);
}