Class: SnapImage::Config

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

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Config

Arguments:

  • config

    Filename of the YAML or JSOn file to load or a config Hash.

NOTE: All keys are strings, not symbols.



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# File 'lib/snapimage/config.rb', line 7

def initialize(config)
  @raw_config = config
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/snapimage/config.rb', line 42

def [](key)
  get_config[key]
end

#get_config ⇒ Object

Raises:



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# File 'lib/snapimage/config.rb', line 21

def get_config
  return @config if @config
  @config = @raw_config
  if @raw_config.is_a? String
    ext = File.extname(@raw_config)
    case ext
    when ".yml", ".yaml"
      @config = YAML::load(File.open(@raw_config))
    when ".json"
      @config = JSON::parse(File.read(@raw_config))
    else
      raise SnapImage::UnknownFileType, "Unknown filetype. Expecting .yaml, .yml, or .json: #{@raw_config}"
    end
  end

  raise SnapImage::UnknownConfigType, "Unknown config type. Expecting a filename or hash: #{@config}" unless @config.is_a? Hash
  validate_config
  set_config_defaults
  @config
end

#set_config_defaults ⇒ Object 



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# File 'lib/snapimage/config.rb', line 17

def set_config_defaults
  @config["max_file_size"] ||= 10485760 # 10MB
end

#validate_config ⇒ Object

Raises:



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# File 'lib/snapimage/config.rb', line 11

def validate_config
  raise SnapImage::InvalidConfig, 'Missing "adapter"' unless @config["adapter"]
  raise SnapImage::InvalidConfig, "Unknown adapter type. Expecting local or cloudinary: #{@config["adapter"]}" unless @config["adapter"]
  SnapImage.const_get(@config["adapter"].capitalize).const_get("Config").new(@config).validate_config
end