Class: Todidnt::Cache

Inherits:
Object
  • Object
show all
Defined in:
lib/todidnt/cache.rb

Constant Summary collapse

CACHE_PATH = 
'.todidnt/cache'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data) ⇒ Cache

Returns a new instance of Cache.



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# File 'lib/todidnt/cache.rb', line 12

def initialize(data)
  @time = Time.now.to_i
  @data = data
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/todidnt/cache.rb', line 10

def data
  @data
end

#time ⇒ Object (readonly)

Returns the value of attribute time.



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# File 'lib/todidnt/cache.rb', line 10

def time
  @time
end

Class Method Details

.clear! ⇒ Object 



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# File 'lib/todidnt/cache.rb', line 42

def self.clear!
  Dir.glob("#{CACHE_PATH}/*").each do |file|
    File.delete(file)
  end
end

.exists?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/todidnt/cache.rb', line 38

def self.exists?(key)
  File.exists?("#{CACHE_PATH}/#{key}")
end

.load(key) ⇒ Object 



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# File 'lib/todidnt/cache.rb', line 26

def self.load(key)
  return nil unless exists?(key)

  begin
    raw_cache = File.open("#{CACHE_PATH}/#{key}").read
    Marshal.load(raw_cache)
  rescue Exception
    puts "Cache file was malformed; skipping..."
    nil
  end
end

.save(key, data) ⇒ Object 



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# File 'lib/todidnt/cache.rb', line 17

def self.save(key, data)
  # Create the destinateion folder unless it already exists.
  FileUtils.mkdir_p(CACHE_PATH)

  File.open("#{CACHE_PATH}/#{key}", 'w') do |file|
    file.write(Marshal.dump(Cache.new(data)))
  end
end