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#!/usr/bin/env ruby
#
# Control script for Mongrel by Winson.

SCRIPT_VERSION = '0.6'

APP_DIR = '/home/winson/projects'
APPS = {
  'mephisto'  => 3100,
  'money'     => 3200,
  'devalot'   => 3400,
  'radiant'   => 3500
}

def is_cluster?(app)
  File.exists?(File.join(APP_DIR, app, "config", "mongrel_cluster.yml"))
end

def is_started?(app)
begin
  Dir.open(File.join(APP_DIR, app, "log")).each { |filename| return true if filename =~ /mongrel.*pid/ }
  rescue
    puts "#{app.upcase} is messed up."
  end
end

def ask_status(app)
  if is_started?(app) == true
    puts "Status Running: #{app.upcase}"
  else
    puts "Status Shutdown: #{app.upcase}"
  end  
end

def do_start(app, port=nil)
  if is_started?(app) == true
    ask_status app
  else
    path = File.join(APP_DIR, app)
    puts "Running #{app.upcase} on port #{port}..."
    exec "mongrel_rails start -d -p #{port} -e production -c #{path} -P log/mongrel.pid"
  end
end

def do_stop(app)
  if is_started?(app) == true
    path = File.join(APP_DIR, app)
    puts "Shutdown #{app.upcase}..."
    exec "mongrel_rails stop -c #{path} -P log/mongrel.pid"
  else
    ask_status app
  end
end

def do_restart(app, port=nil)
  if is_started?(app) == true
    path = File.join(APP_DIR, app)
    puts "Shutdown #{app.upcase}..."
    exec "mongrel_rails stop -c #{path} -P log/mongrel.pid"
    puts "Running #{app.upcase} on port #{port}..."
    exec "mongrel_rails start -d -p #{port} -e production -c #{path} -P log/mongrel.pid"
  else
    ask_status app
  end
end

def list
  puts "Directory: #{APP_DIR}"
  APPS.each {|app, port| puts "Port #{port}: #{app.upcase}"}
end

def start
  ARGV[1] ? do_start(ARGV[1]) : APPS.each {|app, port| do_start(app, port)}
end

def status
  ARGV[1] ? ask_status(ARGV[1]) : APPS.each {|app, port| ask_status(app)}
end

def stop
  ARGV[1] ? do_stop(ARGV[1]) : APPS.each {|app, port| do_stop(app)}
end

def restart
  ARGV[1] ? do_restart(ARGV[1]) : APPS.each {|app, port| do_restart(app, port)}
end

def version
  puts "Version: #{SCRIPT_VERSION}."
end

def method_missing(method_id)
  puts "Usage: mong.rb [help|list|start|status|stop|restart|version] [appname]"
  exit
end

send ARGV[0] || :help