Method: Bunch::Cache.fetch

Defined in:
lib/bunch/cache.rb

.fetch(fn, &blk) ⇒ Object 



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

def fetch(fn, &blk)
  current_mtime = File.mtime(fn)

  if stored?(fn) && mtime(fn) == current_mtime
    read(fn)
  else
    content = blk.call
    write(fn, current_mtime, content)
    content
  end
end