Class: Rack::Insight::Config

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/insight/config.rb

Defined Under Namespace

Classes: ConfigurationError

Constant Summary collapse

VERBOSITY = 
{
  :debug => Logger::DEBUG,
  :high => Logger::INFO,
  :med => Logger::WARN,
  :low => Logger::ERROR,
  # Silent can be used with unless instead of if.  Example:
  #   logger.info("some message") unless app.verbose(:silent)
  :silent => Logger::FATAL
}
DEFAULTS =

Set false if you want to handle the javascript yourself.

{
  # You can augment or replace the default set of panel load paths.
  # These are the paths where rack-insight will look for panels.
  # A rack-insight extension gem could place panels in:
  #   lib/foo/bar/
  # Since gems' lib/ is automatically shifted onto Ruby load path, this will make the custom panels discoverable:
  #   Rack::Insight::Config.configure do |config|
  #     config[:panel_load_paths] << File::join('foo', 'bar')
  #   end
  :panel_load_paths => [File::join('rack', 'insight', 'panels')],
  :logger => @logger,
  :log_file => @log_file,
  :log_level => @log_level,
  :rails_log_copy => @rails_log_copy, # Only has effect when logger is the Rack::Insight::Logger, or a logger behaving like it
  # Can set a specific verbosity: Rack::Insight::Logging::VERBOSITY[:debug]
  :verbosity => @verbosity, # true is equivalent to relying solely on the log level of each logged message
  :filtered_backtrace => @filtered_backtrace, # Full back-traces, or filtered ones?
  :panel_configs => @panel_configs, # Allow specific panels to have their own configurations, and make it extensible
  :silence_magic_insight_warnings => @silence_magic_insight_warnings, # Should Rack::Insight warn when the MagicInsight is used?
  :database => @database, # a hash.  Keys :raise_encoding_errors, and :raise_decoding_errors are self explanatory
                         # :raise_encoding_errors
                         #    When set to true, if there is an encoding error (unlikely)
                         #    it will cause a 500 error on your site.  !!!WARNING!!!
                         # :raise_decoding_errors
                         #    The bundled panels should work fine with :raise_decoding_errors set to true or false
                         #    but custom panel implementations may prefer one over the other
                         #    The bundled panels will capture these errors and perform admirably.
                         #    Site won't go down unless a custom panel is not handling the errors well.
  :handle_javascript => @handle_javascript # If Your setup is AMD, and you are handling your javascript module loading,
                         # including that of jQuery, then you will need to set this to false.
}

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/rack/insight/config.rb', line 22

def config
  @config
end

.database ⇒ Object (readonly)

Returns the value of attribute database.



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# File 'lib/rack/insight/config.rb', line 22

def database
  @database
end

.filtered_backtrace ⇒ Object (readonly)

Returns the value of attribute filtered_backtrace.



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# File 'lib/rack/insight/config.rb', line 22

def filtered_backtrace
  @filtered_backtrace
end

.handle_javascript ⇒ Object (readonly)

Returns the value of attribute handle_javascript.



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# File 'lib/rack/insight/config.rb', line 22

def handle_javascript
  @handle_javascript
end

.log_file ⇒ Object (readonly)

Returns the value of attribute log_file.



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# File 'lib/rack/insight/config.rb', line 22

def log_file
  @log_file
end

.log_level ⇒ Object (readonly)

Returns the value of attribute log_level.



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# File 'lib/rack/insight/config.rb', line 22

def log_level
  @log_level
end

.panel_configs ⇒ Object (readonly)

Returns the value of attribute panel_configs.



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# File 'lib/rack/insight/config.rb', line 22

def panel_configs
  @panel_configs
end

.rails_log_copy ⇒ Object (readonly)

Returns the value of attribute rails_log_copy.



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# File 'lib/rack/insight/config.rb', line 22

def rails_log_copy
  @rails_log_copy
end

.silence_magic_insight_warnings ⇒ Object (readonly)

Returns the value of attribute silence_magic_insight_warnings.



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# File 'lib/rack/insight/config.rb', line 22

def silence_magic_insight_warnings
  @silence_magic_insight_warnings
end

.verbosity ⇒ Object (readonly)

Returns the value of attribute verbosity.



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# File 'lib/rack/insight/config.rb', line 22

def verbosity
  @verbosity
end

Class Method Details

.configure {|@config| ... } ⇒ Object

Yields:



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# File 'lib/rack/insight/config.rb', line 92

def self.configure &block
  yield @config
  logger.debug("Rack::Insight::Config#configure:\n  called from: #{caller[0]}\n  with: #{@config}") if config[:verbosity] == true || config[:verbosity].respond_to?(:<) && config[:verbosity] <= 1
  @logger = config[:logger]
  if @logger.nil?
    @log_level = config[:log_level]
    @log_file = config[:log_file]
  elsif config[:log_level] || config[:log_file]
    logger.warn("Rack::Insight::Config#configure: when logger is set, log_level and log_file have no effect, and will only confuse you.")
  end
  @verbosity = config[:verbosity]
  if @verbosity.nil?
    @verbosity = Rack::Insight::Config::VERBOSITY[:silent]
  end
  @filtered_backtrace = config[:filtered_backtrace]
  @silence_magic_insight_warnings = config[:silence_magic_insight_warnings]
  @database = config[:database]
  @handle_javascript = !!config[:handle_javascript] # Cast to boolean

  config[:panel_configs].each do |panel_name_sym, config|
    set_panel_config(panel_name_sym, config)
  end

  validate_config(:panel_configs, Hash)
  validate_config(:panel_load_paths, Array)
  validate_config(:database, Hash)
end

.logger ⇒ Object 



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# File 'lib/rack/insight/config.rb', line 142

def self.logger
  @logger ||= begin
    logga = self.config[:logger]
    if logga.nil?
      warn ("Rack::Insight::Config#configure: logger is not configured, defaults to Ruby's Logger")
      logga = ::Logger.new(log_file)
      if logga.respond_to?(:level)
        logga.level = self.log_level
      elsif logga.respond_to?(:sev_threshold)
        logga.sev_threshold = self.log_level
      end
    end
    logga
  end
end

.set_panel_config(panel_name_sym, config) ⇒ Object

To preserve :panel_configs settings from extension libraries, and allowing user config to override the defaults set in this, or other extension gems.



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# File 'lib/rack/insight/config.rb', line 133

def self.set_panel_config(panel_name_sym, config)
  @panel_configs[panel_name_sym].merge!(config)
  self.config[:panel_configs][panel_name_sym] = @panel_configs[panel_name_sym]
end

.validate_config(key, klass) ⇒ Object

Raises:



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# File 'lib/rack/insight/config.rb', line 120

def self.validate_config(key, klass)
  raise ConfigurationError.new(key, klass.to_s) unless config[key].kind_of?(klass)
end