class Bleib::Configuration

Constants

DEFAULT_CHECK_DATABASE_INTERVAL
DEFAULT_CHECK_MIGRATIONS_INTERVAL
DEFAULT_DATABASE_YML_PATH
SUPPORTED_ADAPTERS

Attributes

check_database_interval[R]
check_migrations_interval[R]
database[R]

Public Class Methods

from_environment() click to toggle source
# File lib/bleib/configuration.rb, line 14
def self.from_environment
  check_database_interval = interval_or_default(
    ENV['BLEIB_CHECK_DATABASE_INTERVAL'],
    DEFAULT_CHECK_DATABASE_INTERVAL
  )
  check_migrations_interval = interval_or_default(
    ENV['BLEIB_CHECK_MIGRATIONS_INTERVAL'],
    DEFAULT_CHECK_MIGRATIONS_INTERVAL
  )

  database_yml_path = ENV['BLEIB_DATABASE_YML_PATH']
  database_yml_path ||= File.expand_path('config/database.yml')
  ensure_database_yml!(database_yml_path)

  rails_env = ENV['RAILS_ENV'] || 'development'

  new(
    rails_database(database_yml_path, rails_env),
    check_database_interval: check_database_interval.to_i,
    check_migrations_interval: check_migrations_interval.to_i
  )
end
new(database_configuration, check_database_interval: DEFAULT_CHECK_DATABASE_INTERVAL, check_migrations_interval: DEFAULT_CHECK_MIGRATIONS_INTERVAL) click to toggle source
# File lib/bleib/configuration.rb, line 37
def initialize(database_configuration,
               check_database_interval: DEFAULT_CHECK_DATABASE_INTERVAL,
               check_migrations_interval: DEFAULT_CHECK_MIGRATIONS_INTERVAL)
  # To be 100% sure which connection the
  # active record pool creates, returns or removes.
  only_one_connection = { 'pool' => 1 }

  @database = database_configuration.merge(only_one_connection)

  @check_database_interval = check_database_interval
  @check_migrations_interval = check_migrations_interval

  check!
end

Private Class Methods

ensure_database_yml!(path) click to toggle source
# File lib/bleib/configuration.rb, line 71
def self.ensure_database_yml!(path)
  return if File.exist?(path)

  fail DatabaseYmlNotFoundException,
       'database.yml not found, set or fix' \
       ' BLEIB_DATABASE_YML_PATH or execute me' \
       ' from the rails root.'
end
interval_or_default(string, default) click to toggle source
# File lib/bleib/configuration.rb, line 66
def self.interval_or_default(string, default)
  given = string.to_i
  given <= 0 ? default : given
end
rails_database(database_yml_path, rails_env) click to toggle source
# File lib/bleib/configuration.rb, line 80
def self.rails_database(database_yml_path, rails_env)
  contents = File.read(database_yml_path)
  config = YAML.load(ERB.new(contents).result)
  config[rails_env]
end

Public Instance Methods

logger() click to toggle source
# File lib/bleib/configuration.rb, line 52
def logger
  return @logger unless @logger.nil?

  @logger = Logger.new(STDOUT)
  @logger.level = if ENV['BLEIB_LOG_LEVEL'] == 'debug'
                    Logger::DEBUG
                  else
                    Logger::INFO
                  end
  @logger
end

Private Instance Methods

check!() click to toggle source
# File lib/bleib/configuration.rb, line 86
def check!
  # We should add clean rescue statements to
  # `Bleib::Database#database_down?`to support
  # other adapters.
  return if SUPPORTED_ADAPTERS.include?(@database['adapter'])

  fail UnsupportedAdapterException,
       "Unknown database adapter #{@database['adapter']}"
end