Module: TxCatcher::Initializer

Defined in:
lib/txcatcher/initializer.rb

Defined Under Namespace

Modules: ConfigFile

Constant Summary collapse

GEM_ROOT = 
File.expand_path('../..', File.dirname(__FILE__))
MIGRATIONS_ROOT = 
GEM_ROOT + '/db/migrations/'

Instance Method Summary collapse

Instance Method Details

#add_route(path, &block) ⇒ Object 



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# File 'lib/txcatcher/initializer.rb', line 56

def add_route(path, &block)
  @routes[path] = block
end

#connect_to_db ⇒ Object 



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# File 'lib/txcatcher/initializer.rb', line 92

def connect_to_db

  # symbolize keys for convenience
  db_config = TxCatcher::Config.db.keys_to_sym

  db_name = if db_config[:adapter] == 'sqlite'
    if db_config[:db_path].start_with?("/")
      db_config[:db_path]
    else
      "#{File.dirname(ConfigFile.path)}/#{db_config[:db_path]}"
    end
  else
    db_config[:db_name]
  end

  TxCatcher.db_connection = Sequel.connect(
    "#{db_config[:adapter]}://"                                                   +
    "#{db_config[:user]}#{(":" if db_config[:user])}"                             +
    "#{db_config[:password]}#{("@" if db_config[:user] || db_config[:password])}" +
    "#{db_config[:host]}#{(":" if db_config[:port])}"                             +
    "#{db_config[:port]}#{("/" if db_config[:host] || db_config[:port])}"         +
    "#{db_name}"
  )
end

#connect_to_rpc_node ⇒ Object

Connects to all bitcoin daemons listed in config



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# File 'lib/txcatcher/initializer.rb', line 118

def connect_to_rpc_node
  n = TxCatcher::Config.rpcnode
  print "Checking #{n["name"]} RPC connection... "
  TxCatcher.rpc_node = BitcoinRPC.new("http://#{n["user"]}:#{n["password"]}@#{n["host"]}:#{n["port"]}")
  
  i = 0 # try to connect to RPC 100 times before exiting with error
  until TxCatcher.current_block_height
    begin
      TxCatcher.current_block_height = TxCatcher.rpc_node.getblockcount
    rescue Errno::ECONNREFUSED, BitcoinRPC::JSONRPCError => e
      if i > 100
        print "ERROR, cannot connect using connection data #{n["name"]}\n"
        exit
      else
        print "Bitcoin RPC connection error: #{e.to_s}; will try again in 1 sec...\n"
        i += 1
        sleep 1
      end
    end
  end
  print "current block height: #{TxCatcher.current_block_height}\n"
end

#create_config_files ⇒ Object 



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# File 'lib/txcatcher/initializer.rb', line 60

def create_config_files
  FileUtils.mkdir_p(ConfigFile.path) unless File.exist?(ConfigFile.path)

  unless File.exist?(ConfigFile.path)
    puts "\e[1;33mWARNING!\e[0m \e[33mNo file #{ConfigFile.path} was found. Created a sample one for you.\e[0m"
    puts "You should edit it and try starting the server again.\n"

    FileUtils.cp(GEM_ROOT + '/templates/config.yml', ConfigFile.path)
    config_contents = File.read(ConfigFile.path)
    config_contents.sub!("$home", File.expand_path('~'))
    File.open(ConfigFile.path, "w") { |f| f.write(config_contents) }
    puts "Shutting down now.\n\n"
    exit
  end

end

#migrations_pending? ⇒ Boolean 



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# File 'lib/txcatcher/initializer.rb', line 148

def migrations_pending?
  !Sequel::Migrator.is_current?(TxCatcher.db_connection, MIGRATIONS_ROOT)
end

#prepare ⇒ Object 



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# File 'lib/txcatcher/initializer.rb', line 46

def prepare
  ConfigFile.set!
  create_config_files
  read_config_file
  connect_to_db
  connect_to_rpc_node
  run_migrations if migrations_pending?
  set_goliath_args
end

#read_config_file ⇒ Object 



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# File 'lib/txcatcher/initializer.rb', line 77

def read_config_file
  YAML.load_file(ConfigFile.path).each do |k,v|
    TxCatcher::Config.send(k + '=', v)
  end
end

#run_migrations ⇒ Object 



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# File 'lib/txcatcher/initializer.rb', line 141

def run_migrations
  Sequel.extension :migration
  print "\nPending migrations for the database detected. Migrating..."
  Sequel::Migrator.run(TxCatcher.db_connection, MIGRATIONS_ROOT)
  print "done\n\n"
end

#set_goliath_args ⇒ Object 



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# File 'lib/txcatcher/initializer.rb', line 83

def set_goliath_args
  # Setting default port to 9498
  unless ARGV.include?("-p")
    ARGV.push "-p"
    Config.server_port ? ARGV.push(Config.server_port.to_s) : ARGV.push("9498")
    Config.daemonize   ? ARGV.push("-d") : ""
  end
end