Class: Rakali::Converter

Inherits:
Object
  • Object
show all
Defined in:
lib/rakali/converter.rb

Constant Summary collapse

DEFAULTS =

Default options.

{
  'from'          => { 'format' => 'md' },
  'to'            => { 'folder' => nil, 'format' => 'html' },
  'schema'        => 'default.json',
  'citations'     => false,
  'strict'        => false,
  'merge'         => false,
  'options'       => {}
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file, options = {}) ⇒ Converter

Returns a new instance of Converter.



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# File 'lib/rakali/converter.rb', line 19

def initialize(file, options = {})
  begin
    config = read_config_file(file)

    # deep merge defaults to preserve nested keys
    @config = Utils.deep_merge_hashes(DEFAULTS, config)

    # print configuration
    Rakali.logger.info "Configuration:", to_yaml

    from_folder = @config.fetch('from').fetch('folder')
    from_format = @config.fetch('from').fetch('format')
    documents = Dir.glob("#{from_folder}/*.#{from_format}")

    # merge all documents into one file if merge flag is set
    # otherwise iterate through each file in source folder
    if @config.fetch('merge')
      Rakali::Document.new(documents, @config)
    else
      documents.each { |document| Rakali::Document.new(document, @config) }
    end
  rescue KeyError => e
    Rakali.logger.abort_with "Fatal:", "Configuration #{e.message}."
  rescue => e
    Rakali.logger.abort_with "Fatal:", "#{e.message}."
  end
end

Instance Attribute Details

#config ⇒ Object

Returns the value of attribute config.



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# File 'lib/rakali/converter.rb', line 17

def config
  @config
end

#documents ⇒ Object

Returns the value of attribute documents.



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# File 'lib/rakali/converter.rb', line 17

def documents
  @documents
end

#errors ⇒ Object

Returns the value of attribute errors.



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# File 'lib/rakali/converter.rb', line 17

def errors
  @errors
end

Instance Method Details

#from_json(string) ⇒ Object 



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# File 'lib/rakali/converter.rb', line 54

def from_json(string)
  JSON.parse(string)
rescue JSON::ParserError, TypeError
  nil
end

#read_config_file(file) ⇒ Object 



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# File 'lib/rakali/converter.rb', line 47

def read_config_file(file)
  # use an empty hash if the file is empty
  SafeYAML.load_file(file) || {}
rescue SystemCallError
  Rakali.logger.abort_with "Fatal:", "Configuration file not found: \"#{file}\"."
end

#to_json ⇒ Object 



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# File 'lib/rakali/converter.rb', line 60

def to_json
  content.to_json
end

#to_yaml ⇒ Object 



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# File 'lib/rakali/converter.rb', line 64

def to_yaml
  yaml = config.to_yaml.gsub(/---\n/, '').split("\n")
  yaml.join("\n                    ")
end