Module: FileMutate::InsertContent::ClassMethods

Defined in:
lib/file_mutate/insert_content.rb

Instance Method Summary collapse

Instance Method Details

#insert_into(file_name, *args, &block) ⇒ Object

insert_into ‘my_file.txt’, :after => ‘Blip’, :content => ‘Hello insert_into ’my_file.txt’, ‘Hello’, :after => ‘Blip’ insert_into ‘my_file.txt’, :after => ‘Blip’ do 

'Hello'

end



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# File 'lib/file_mutate/insert_content.rb', line 13

def insert_into file_name, *args, &block
  options = last_option args
  content = insertion_content options, *args, &block

  # no content to insert?
  return nil if content.blank? 

  file = begin
           get_file(file_name)
         rescue
           return nil
         end

  # already inserted?
  return nil if !options[:repeat] && file.has_content?(content)

  # find where to insert
  place, marker = if options[:before] 
                    [ :before, options[:before] ]
                  elsif options[:before_last]
                    [ :before_last, options[:before_last] ]
                  else
                    [ :after, options[:after] ]
                  end 

  return nil if !file.has_content?(marker)

  # do mutation
  res = file.mutate marker, place do
    content
  end
  res
end

#insertion_content(options = {}, *args, &block) ⇒ Object 



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# File 'lib/file_mutate/insert_content.rb', line 47

def insertion_content options = {}, *args, &block
  case args.first
  when String
    args.first
  when Hash
    options[:content] || (yield if block)      
  else
    return yield if block
    raise ArgumentError, "You must supply content to insert, either as a String before the options hash, a :content option or a block" 
  end     
end