current directoryにあるファイル／フォルダをArchive directoryにmvする。"#{HOME}/.put_away_ignore"を記述することで移動対象外のファイルを指定できる。

put_away.rb

require 'pry'

def target_root_dir
  "./"
end

# make archive directorty
def archive_dir_name
  dir = Time.now.strftime("%Y_%m_%d")
  File.join(target_root_dir, dir)
end

def make_dir_for_archive
  if File.exist?(archive_dir_name)
    raise "archive dirctory already exits. dir_name: #{archive_dir_name}"
  end

  Dir.mkdir(archive_dir_name)
end

# move to archive dirctory
def target_files
  Dir.glob(File.join(target_root_dir, "*")).map do |path|
    File.basename(path)
  end
end

def move_to_archive(source)
  to = File.join(archive_dir_name,source)
  File.rename(source, to)
end

def read_ignore_config
  config_file = File.join(ENV["HOME"], ".put_away_ignore")

  unless File.exist?(config_file)
    return []
  end

  File.open(config_file).read.split("\n")
end

def ignore_file_names
  ignore_file_names = []
  ignore_file_names << File.basename(archive_dir_name)
  ignore_file_names += read_ignore_config

  @ignore_file_names ||= ignore_file_names
end

make_dir_for_archive

target_files.each do |file|
  next if ignore_file_names.include?(File.basename file)
  move_to_archive(file)
end