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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 start(app, port)
  if is_started?(app) == true
    puts "#{app.upcase} is running."
  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 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
    puts "#{app.upcase} is shutdown."
  end
end

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

if ['stop', 'restart'].include? ARGV.first
  if ARGV[1]
    stop(ARGV[1])
  else
    APPS.each {|app, port| stop(app)}
  end
end

if ['start', 'restart'].include? ARGV.first
  if ARGV[1]
    start(ARGV[1], APPS[ARGV[1]])
  else
    APPS.each {|app, port| start(app, port)}
  end
end

if ARGV.first == "list"
  puts "Directory: #{APP_DIR}"
  APPS.each {|app, port| puts "Port #{port}: #{app.upcase}"}
end

if ARGV.first == "status"
  APPS.each {|app, port| status(app)}
end

if ARGV.first == "version"
  puts "Version: #{SCRIPT_VERSION}."
end

unless ['list', 'status', 'start', 'stop', 'restart'].include? ARGV.first
  puts "Usage: mong [list|status|start|stop|restart|version] [appname]"
  APPS.each {|app, port| status(app)}
  exit
end