Class: FileCache

Inherits:
Object show all
Defined in:
lib/file_cache.rb

Constant Summary collapse

MAXDURATION = 
60 * 10

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filepath) ⇒ FileCache

Returns a new instance of FileCache.



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# File 'lib/file_cache.rb', line 23

def initialize(filepath)
  @filepath = filepath
end

Instance Attribute Details

#filepath ⇒ Object (readonly)

Returns the value of attribute filepath.



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# File 'lib/file_cache.rb', line 22

def filepath
  @filepath
end

Class Method Details

.clear(filepath) ⇒ Object 



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# File 'lib/file_cache.rb', line 12

def self.clear(filepath)
  new(filepath).clear!
end

.clear_all ⇒ Object 



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# File 'lib/file_cache.rb', line 16

def self.clear_all
  File.join(Dir.tmpdir, "dcm-*.dump")
    .then { Dir.glob(_1) }
    .each { FileUtils.rm(_1, verbose: true) }
end

.get(filepath, &blk) ⇒ Object 



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# File 'lib/file_cache.rb', line 8

def self.get(filepath, &blk)
  new(filepath).cache!(&blk)
end

Instance Method Details

#cache! ⇒ Object 



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# File 'lib/file_cache.rb', line 27

def cache!
  return read_cache if cached?

  yield.tap { write_cache(_1) }
rescue
  yield
end

#clear! ⇒ Object 



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# File 'lib/file_cache.rb', line 35

def clear!
  FileUtils.rm(cachefilepath, verbose: true) if exist?
end