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| | #!/home/ew/bin/ruby
require 'unicorn/launcher'
require 'optparse'
require 'fileutils'
rails_pid = File.join(Unicorn::HttpServer::DEFAULT_START_CTX[:cwd],
"/tmp/pids/unicorn.pid")
cmd = File.basename($0)
daemonize = false
listeners = []
options = { :listeners => listeners }
host, port = Unicorn::Const::DEFAULT_HOST, 3000
ENV['RAILS_ENV'] ||= "development"
map_path = ENV['RAILS_RELATIVE_URL_ROOT']
opts = OptionParser.new("", 24, ' ') do |opts|
opts.banner = "Usage: #{cmd} " \
"[ruby options] [#{cmd} options] [rackup config file]"
opts.separator "Ruby options:"
lineno = 1
opts.on("-e", "--eval LINE", "evaluate a LINE of code") do |line|
eval line, TOPLEVEL_BINDING, "-e", lineno
lineno += 1
end
opts.on("-d", "--debug", "set debugging flags (set $DEBUG to true)") do
$DEBUG = true
end
opts.on("-w", "--warn", "turn warnings on for your script") do
$-w = true
end
opts.on("-I", "--include PATH",
"specify $LOAD_PATH (may be used more than once)") do |path|
$LOAD_PATH.unshift(*path.split(/:/))
end
opts.on("-r", "--require LIBRARY",
"require the library, before executing your script") do |library|
require library
end
opts.separator "#{cmd} options:"
# some of these switches exist for rackup command-line compatibility,
opts.on("-o", "--host HOST",
"listen on HOST (default: #{Unicorn::Const::DEFAULT_HOST})") do |h|
host = h
end
opts.on("-p", "--port PORT", "use PORT (default: #{port})") do |p|
port = p.to_i
end
opts.on("-E", "--env ENVIRONMENT",
"use ENVIRONMENT for defaults (default: development)") do |e|
ENV['RAILS_ENV'] = e
end
opts.on("-D", "--daemonize", "run daemonized in the background") do |d|
daemonize = d ? true : false
end
# Unicorn-specific stuff
opts.on("-l", "--listen {HOST:PORT|PATH}",
"listen on HOST:PORT or PATH",
"this may be specified multiple times",
"(default: #{Unicorn::Const::DEFAULT_LISTEN})") do |address|
listeners << address
end
opts.on("-c", "--config-file FILE", "Unicorn-specific config file") do |f|
options[:config_file] = File.expand_path(f)
end
opts.on("-P", "--path PATH", "Runs Rails app mounted at a specific path.",
"(default: /") do |v|
map_path = v
end
# I'm avoiding Unicorn-specific config options on the command-line.
# IMNSHO, config options on the command-line are redundant given
# config files and make things unnecessarily complicated with multiple
# places to look for a config option.
opts.separator "Common options:"
opts.on_tail("-h", "--help", "Show this message") do
puts opts
exit
end
opts.on_tail("-v", "--version", "Show version") do
puts " v#{Unicorn::Const::UNICORN_VERSION}"
exit
end
opts.parse! ARGV
end
require 'pp' if $DEBUG
# Loads Rails and the private version of Rack it bundles. Returns a
# lambda of arity==0 that will return *another* lambda of arity==1
# suitable for using inside Rack::Builder.new block.
rails_loader = lambda do ||
begin
require 'config/boot'
defined?(::RAILS_ROOT) or abort "RAILS_ROOT not defined by config/boot"
defined?(::RAILS_ENV) or abort "RAILS_ENV not defined by config/boot"
defined?(::Rails::VERSION::STRING) or
abort "Rails::VERSION::STRING not defined by config/boot"
rescue LoadError
abort "#$0 must be run inside RAILS_ROOT (#{::RAILS_ROOT})"
end
# return the lambda
config = ::ARGV[0] || (File.exist?('config.ru') ? 'config.ru' : nil)
case config
when nil
lambda do ||
require 'config/environment'
ActionController::Dispatcher.new
end
when /\.ru$/
raw = File.open(config, "rb") { |fp| fp.sysread(fp.stat.size) }
# parse embedded command-line options in config.ru comments
if raw[/^#\\(.*)/]
opts.parse! $1.split(/\s+/)
require 'pp' if $DEBUG
end
lambda { || eval("Rack::Builder.new {(#{raw}\n)}.to_app", nil, config) }
else
lambda do ||
require config
Object.const_get(File.basename(config, '.rb').capitalize)
end
end
end
# this won't run until after forking if preload_app is false
app = lambda do ||
inner_app = rails_loader.call
require 'active_support'
require 'action_controller'
ActionController::Base.relative_url_root = map_path if map_path
Rack::Builder.new do
use Rails::Rack::LogTailer unless daemonize
use Rails::Rack::Debugger if $DEBUG
map(map_path || '/') do
use Rails::Rack::Static
run inner_app.call
end
end.to_app
end
if listeners.empty?
listener = "#{host}:#{port}"
listeners << listener
end
if $DEBUG
pp({
:unicorn_options => options,
:app => app,
:daemonize => daemonize,
})
end
# ensure Rails standard tmp paths exist
%w(cache pids sessions sockets).each do |dir|
FileUtils.mkdir_p("tmp/#{dir}")
end
if daemonize
options[:pid] = rails_pid
Unicorn::Launcher.daemonize!
end
Unicorn.run(app, options)
|