<%= shebang %> $stdout.sync = true

require “shellwords” require “yaml” require “socket”

ENV ||= “development” RAILS_ENV = ENV

ENV ||= RAILS_ENV NODE_ENV = ENV

APP_PATH = File.expand_path(“../”, __dir__) CONFIG_FILE = File.join(APP_PATH, “config/webpacker.yml”) NODE_MODULES_PATH = File.join(APP_PATH, “node_modules”) WEBPACK_CONFIG = File.join(APP_PATH, “config/webpack/#{NODE_ENV}.js”)

DEFAULT_LISTEN_HOST_ADDR = NODE_ENV == 'development' ? 'localhost' : '0.0.0.0'

def args(key)

index = ARGV.index(key)
index ? ARGV[index + 1] : nil

end

begin

dev_server = YAML.load_file(CONFIG_FILE)[RAILS_ENV]["dev_server"]

HOSTNAME          = args('--host') || dev_server["host"]
PORT              = args('--port') || dev_server["port"]
HTTPS             = ARGV.include?('--https') || dev_server["https"]
DEV_SERVER_ADDR   = "http#{"s" if HTTPS}://#{HOSTNAME}:#{PORT}"
LISTEN_HOST_ADDR  = args('--listen-host') || DEFAULT_LISTEN_HOST_ADDR

rescue Errno::ENOENT, NoMethodError

$stdout.puts "Webpack dev_server configuration not found in #{CONFIG_FILE}."
$stdout.puts "Please run bundle exec rails webpacker:install to install webpacker"
exit!

end

begin

server = TCPServer.new(LISTEN_HOST_ADDR, PORT)
server.close

rescue Errno::EADDRINUSE

$stdout.puts "Another program is running on port #{PORT}. Set a new port in #{CONFIG_FILE} for dev_server"
exit!

end

# Delete supplied host, port and listen-host CLI arguments [“–host”, “–port”, “–listen-host”].each do |arg|

ARGV.delete(args(arg))
ARGV.delete(arg)

end

env = { “NODE_PATH” => NODE_MODULES_PATH.shellescape }

cmd = [

"#{NODE_MODULES_PATH}/.bin/webpack-dev-server", "--progress", "--color",
"--config", WEBPACK_CONFIG,
"--host", LISTEN_HOST_ADDR,
"--public", "#{HOSTNAME}:#{PORT}",
"--port", PORT.to_s

] + ARGV

Dir.chdir(APP_PATH) do

system env, *cmd

end