ディレクトリ・ファイル名とファイルの中身のテキストを置換する

mv.rb

#!/usr/bin/env ruby
# encoding: utf-8
# ディレクトリ・ファイル名とファイルの中身のテキストを置換する
require 'fileutils'
require 'open3'

PATTERN = 'AF'
REPLACEMENT = 'TomboAF'
DRY_RUN = false

def move(base_path, file_name)
  path = File.join(base_path, file_name)
  if File.directory?(path)
    recursive_move(path)
  end

  new_path = File.join(base_path, file_name.gsub(PATTERN, REPLACEMENT))

  if path != new_path
    if DRY_RUN
      puts "#{path} -> #{new_path}"
      replaced_path = path
    else
      FileUtils.mv path, new_path
      replaced_path = new_path
    end
  else
    replaced_path = path
  end

  if text_file?(replaced_path)
    text = File.read(replaced_path)
    new_text = text.gsub(PATTERN, REPLACEMENT)
    if text != new_text
      if DRY_RUN
        puts "Replace #{PATTERN} in #{replaced_path}"
      else
        File.open(replaced_path, 'w') {|f| f.write new_text }
      end
    end
  end
end

def text_file?(path)
  file_type, status = Open3.capture2e('file', path)
  status.success? && file_type.include?('text')
end

def recursive_move(base_path)
  Dir.foreach(base_path) do |file_name|
    next if file_name == '.' || file_name == '..'
    move(base_path, file_name)
  end
end

if ARGV.length != 1
  puts 'Usage: mv.rb directory'
  exit
end

recursive_move(ARGV[0])