Gem::BundlerVersionFinder.lockfile_contents

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/bundler_version_finder.rb, line 62
def self.lockfile_contents
  gemfile = gemfile_path

  return unless gemfile

  lockfile = ENV["BUNDLE_LOCKFILE"]
  lockfile = nil if lockfile&.empty?

  lockfile ||= case gemfile
               when "gems.rb" then "gems.locked"
               else "#{gemfile}.lock"
  end

  return unless File.file?(lockfile)

  File.read(lockfile)
end