method

max_mtime

v6.1.7.7 - Show latest stable - 0 notes - Class: ActiveSupport::FileUpdateChecker

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max_mtime(paths) private

This method returns the maximum mtime of the files in paths, or nil if the array is empty.

Files with a mtime in the future are ignored. Such abnormal situation can happen for example if the user changes the clock by hand. It is healthy to consider this edge case because with mtimes in the future reloading is not triggered.

Show source

# File activesupport/lib/active_support/file_update_checker.rb, line 120
      def max_mtime(paths)
        time_now = Time.now
        max_mtime = nil

        # Time comparisons are performed with #compare_without_coercion because
        # AS redefines these operators in a way that is much slower and does not
        # bring any benefit in this particular code.
        #
        # Read t1.compare_without_coercion(t2) < 0 as t1 < t2.
        paths.each do |path|
          mtime = File.mtime(path)

          next if time_now.compare_without_coercion(mtime) < 0

          if max_mtime.nil? || max_mtime.compare_without_coercion(mtime) < 0
            max_mtime = mtime
          end
        end

        max_mtime
      end

max_mtime

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