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KonnorRogers/port_in_use.rb

Last active August 17, 2020 17:51
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Check if a port is being used.
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port_in_use.rb
require "socket"
def detect_port!
hostname = Snowpacker.config.hostname || "localhost"
port = Snowpacker.config.port || 4035
server = TCPServer.new(hostname, port)
server.close
rescue Errno::EADDRINUSE
puts "#{port} is currently being used"
exit!
end
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