in eng/update-dependencies/DependencyUpdater.cs [34:43]
static DependencyUpdater()
{
dockerfiles = new Lazy<IEnumerable<DockerfileInfo>>(() =>
Directory.GetFiles(
Path.Combine(Program.RepoRoot, "src"),
"Dockerfile",
SearchOption.AllDirectories)
.Select(file => new DockerfileInfo(file))
.ToArray());
}