class Rails::Generators::AppBase

def dockerfile_binfile_fixups
  # binfiles may have OS specific paths to ruby.  Normalize them.
  shebangs = Dir["bin/*"].map { |file| IO.read(file).lines.first }.join
  rubies = shebangs.scan(%r{#!/usr/bin/env (ruby.*)}).flatten.uniq
  binfixups = (rubies - %w(ruby)).map do |ruby|
    "sed -i 's/#{Regexp.quote(ruby)}$/ruby/' bin/*"
  end
  # Windows line endings will cause scripts to fail.  If any
  # or found OR this generation is run on a windows platform
  # and there are other binfixups required, then convert
  # line endings.  This avoids adding unnecessary fixups if
  # none are required, but prepares for the need to do the
  # fix line endings if other fixups are required.
  has_cr = Dir["bin/*"].any? { |file| IO.read(file).include? "\r" }
  if has_cr || (Gem.win_platform? && !binfixups.empty?)
    binfixups.unshift 'sed -i "s/\r$//g" bin/*'
  end
  # Windows file systems may not have the concept of executable.
  # In such cases, fix up during the build.
  unless Dir["bin/*"].all? { |file| File.executable? file }
    binfixups.unshift "chmod +x bin/*"
  end
  binfixups
end