<%= 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”)
LISTEN_IP_ADDR = “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}"
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_IP_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 and port CLI arguments [“–host”, “–port”].each do |arg|
ARGV.delete(args(arg)) ARGV.delete(arg)
end
newenv = {
"NODE_PATH" => NODE_MODULES_PATH.shellescape, "ASSET_HOST" => DEV_SERVER_ADDR.shellescape
}.freeze
if Gem.win_platform?
# Workaround for yarn not playing nicely with path separators cmdline = ["#{NODE_MODULES_PATH}/.bin/webpack-dev-server", "--progress", "--color", "--config",
WEBPACK_CONFIG, “–host”, LISTEN_IP_ADDR, “–port”, PORT.to_s] + ARGV else
cmdline = ["yarn", "run", "webpack-dev-server", "--", "--progress", "--color", "--config",
WEBPACK_CONFIG, “–host”, LISTEN_IP_ADDR, “–port”, PORT.to_s] + ARGV end
Dir.chdir(APP_PATH) do
exec newenv, *cmdline
end