Renamer

rename.rb

# frozen_string_literal: true

require "color_echo"

patterns = {
  /oldname/ => "newname",
}

skip_files = [
  /^\.git\//,
  /^vendor\//,
]

Dir.glob("**/*", File::FNM_DOTMATCH).each do |filename|
  next unless File.file?(filename)
  next if skip_files.any? { |p| p =~ filename }
  flag = false
  lines = File.read(filename).lines
  catch(:next_file) do
    lines.each_with_index do |line, i|
      patterns.each do |pattern, replace|
        if pattern =~ line
          unless flag
            flag = true
            puts "\n******** #{filename} ********"
          end
          CE.fg(:gray)
          puts lines[([0, i - 5].max)...i].map { |l| " " + l }
          CE.fg(:red)
          puts "-" + line
          CE.fg(:green)
          puts "+" + line.gsub(pattern, replace)
          CE.fg(:gray)
          puts lines[(i + 1)...([i + 5, lines.length].min)].map { |l| " " + l }
          CE.fg(:h_white)
          puts
          print "Replace? [Y/n/s] "
          ans = gets.chomp
          case ans.downcase
          when "n"
          when "s"
            throw(:next_file)
          else
            lines[i] = line = line.gsub(pattern, replace)
          end
          puts "=" * 32
        end
      rescue
        throw(:next_file)
      end
    end
  end

  File.write(filename, lines.join("")) if flag
end