WEBrickを使ったdaemonなWebサーバ

webrick

#!/usr/bin/env ruby
#
# -*- mode: ruby -*-
# vi: set ft=ruby :

require "optparse"
require "webrick"
include WEBrick

Process.setproctitle(File.basename(__FILE__)) if Process.respond_to?(:setproctitle)

options = {
  :Port => 8000,
  :DocumentRoot => Dir.pwd,
  :BindAddress => "0.0.0.0",
}

OptionParser.new do |opt|
  opt.on "-d", "--[no-]daemon" do |v|
    options[:ServerType] = Daemon if v
  end

  opt.on "-p", "--port PORT", Integer do |v|
    options[:Port] = v
  end

  opt.on "-r", "--root PATH" do |v|
    options[:DocumentRoot] = v
  end

  opt.on "-l", "--log [PATH]" do |v|
    v ||= "access.log"
    path = File.expand_path(v, Dir.pwd)
    f = File.open(path, "a")
    f.sync = true
    options[:AccessLog] = [
      [f, WEBrick::AccessLog::COMBINED_LOG_FORMAT]
    ]
  end
end.parse!(ARGV)

server = HTTPServer.new(options)

%w(INT TERM).each do |sig|
  trap(sig) { server.shutdown }
end

server.start