Class: Twitterscrobble::Preferences

Inherits:
Object
  • Object
show all
Defined in:
lib/twitterscrobble/preferences.rb

Constant Summary collapse

PREFERENCES_FILE_NAME = 
"preferences.yaml"
APP_NAME = 
"twitterscrobble"
TO_BE_SAVED = 
[:history, :twitter_user, :scrobbler_user, :twitter_password]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Preferences

Returns a new instance of Preferences.



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# File 'lib/twitterscrobble/preferences.rb', line 21

def initialize
    parsed_args = parse_args
  
    begin
        if !parsed_args[:stateless]
            @cfg = YAML.load(File.open(full_prefs_file_path))
        else
            @cfg = {}
        end
    rescue
        @cfg = {}
    end
  
    @cfg.merge!(parsed_args) # args override cfg
  
    if @cfg[:logfile]
        @logger = SimpleLogger.new(@cfg[:logfile])
    else
        @logger = SimpleLogger.new(STDOUT)
    end
  
    if @cfg[:loglevel]
        @logger.level = @cfg[:loglevel]
    else
        @logger.level = Logger::WARN
    end
  
    @logger.debug("Command line preferences: #{parsed_args.reject{|k,v| k == :twitter_password}.inspect}")
    @logger.debug("Effective preferences after merging in preferences file #{full_prefs_file_path}:")
    @logger.debug(@cfg.reject{|k,v| k == :twitter_password}.inspect)
  
    if 0 < check_required_args.size
        msg = ""
        msg << "Required argument#{'s' if 1 < check_required_args.size} #{check_required_args.join(', ')} "
        msg << "not found in preferences or command line parameters."
        raise msg
    end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(methodname, *args) ⇒ Object

delegates reading of attributes to @cfg



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# File 'lib/twitterscrobble/preferences.rb', line 75

def method_missing(methodname, *args)
    @cfg[methodname]
end

Instance Attribute Details

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/twitterscrobble/preferences.rb', line 19

def logger
  @logger
end

Instance Method Details

#history=(history_stamp) ⇒ Object 



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# File 'lib/twitterscrobble/preferences.rb', line 79

def history=(history_stamp)
    @cfg[:history] = history_stamp
end

#save ⇒ Object 



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# File 'lib/twitterscrobble/preferences.rb', line 60

def save
    unless @cfg[:no_save]
        Dir.mkdir(preferences_dir) if !File.exist?(preferences_dir)
        
        File.open(full_prefs_file_path, 'w') do |out|
            save_cfg = @cfg.reject{|k, v| !TO_BE_SAVED.include?(k)}
            @logger.debug("Writing preferences: #{save_cfg.reject{|k,v| k == :twitter_password}.inspect}")  
            YAML.dump(save_cfg, out)
        end
        
        File.new(full_prefs_file_path).chmod(0600)
    end
end