require "fileutils" require "pathname" class ActiveFile::Sites::DiskSite < ActiveFile::Site attr_reader :root def initialize(root:) @root = root end def upload(key, data) File.open(make_path_for(key), "wb") do |file| while chunk = data.read(65536) file.write(chunk) end end end def download(key) if block_given? File.open(path_for(key)) do |file| while data = file.read(65536) yield data end end else File.open path_for(key), &:read end end def delete(key) File.delete path_for(key) end def exists?(key) File.exist? path_for(key) end def byte_size(key) File.size path_for(key) end def checksum(key) Digest::MD5.file(path_for(key)).hexdigest end private def path_for(key) File.join root, folder_for(key), key end def folder_for(key) [ key[0..1], key[2..3] ].join("/") end def make_path_for(key) path_for(key).tap { |path| FileUtils.mkdir_p File.dirname(path) } end end