23 lines
366 B
Ruby
23 lines
366 B
Ruby
# typed: strict
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# frozen_string_literal: true
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require "socket"
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module Homebrew
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# Helper function for finding a free port.
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#
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# @api private
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module FreePort
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# Returns a free port.
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# @api public
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sig { returns(Integer) }
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def free_port
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server = TCPServer.new 0
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_, port, = server.addr
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server.close
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port
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end
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end
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end
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