$gemsmith = {
	active: nil,
	stages: [],
}

def load_site(in_path, out_path)
	Dir["#{in_path}/*"].map do |f|
		out_f = "#{out_path}/#{File.basename f}"
		if File.symlink? f then
			$stderr.puts "Warning: Skipping symlink #{f}"
			nil
		elsif File.directory? f then
			[File.basename(f), [:directory, load_site(f, out_f)]]
		else
			[File.basename(f), [:file, {
					created: File.birthtime(f),
					modified: File.mtime(f),
					source_path: f,
					dependencies: f,
					out_path: out_f,
					stages: [ proc { File.open(f) {|io| io.readlines} } ]
				}]]
		end
	end
end


def site(site_name, params = {})

	in_path = params.fetch(:src, "src")
	out_path = params.fetch(:out, "build/#{site_name}")

	$gemsmith[:active] = { 
		in_path: in_path,
		out_path: out_path, 
		files: load_site(in_path)
	}

	directory $gemsmith[:active][:in_path]
	directory $gemsmith[:active][:out_path]

	yield

	$gemsmith[:active] = nil
end