Rename symbols and objects in a Rails project

move.rb

#!/usr/bin/env ruby
require 'fileutils'
require "active_support/all"

# Check for arguments
unless ARGV.length == 2
  puts "Usage: #{$PROGRAM_NAME} <original_class_name> <new_class_name>"
  exit
end

original_class_name, new_class_name = ARGV
original_underscore = original_class_name.underscore
new_underscore = new_class_name.underscore

# Define a recursive method to rename files and update file contents
def process_files(path, original_class_name, new_class_name, original_underscore, new_underscore)
  Dir.foreach(path) do |item|
    next if item == '.' or item == '..'

    full_path = File.join(path, item)
    if File.directory?(full_path)
      process_files(full_path, original_class_name, new_class_name, original_underscore, new_underscore)
    elsif item.end_with?('.rb')
      # Rename file if necessary
      if item.include?(original_underscore)
        new_file_name = item.gsub(original_underscore, new_underscore)
        new_full_path = File.join(path, new_file_name)
        FileUtils.mv(full_path, new_full_path)
        puts "Renamed #{full_path} to #{new_full_path}"
        full_path = new_full_path # Update full_path to reflect the new file name for content update
      end

      # Update contents of the file
      text = File.read(full_path)
      new_text = text.gsub(original_class_name, new_class_name)
                     .gsub(original_underscore, new_underscore)
      if text != new_text
        File.open(full_path, "w") { |file| file.puts new_text }
        puts "Updated references in #{full_path}"
      end
    end
  end
end

# Start processing from the current directory
process_files(Dir.pwd, original_class_name, new_class_name, original_underscore, new_underscore)

puts "Process complete. Please manually check your application for any missed references."