Module: Piggly::FileCache::ClassMethods

Defined in:
lib/piggly/filecache.rb

Instance Method Summary collapse

Instance Method Details

#cache_path(file) ⇒ Object

Maps source path to cache path, like /home/user/foo.sql => piggly/cache/#MD5(‘/home/user’)/#BaseClass/foo.sql



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# File 'lib/piggly/filecache.rb', line 24

def cache_path(file)
  # up to the last capitalized word of the class name
  subdir = name[/^(?:.+::)?(.+?)([A-Z][^A-Z]+)?$/, 1]
  root   = File.join(Config.cache_root, subdir)

  # md5 the full path to prevent collisions
  full = File.expand_path(file)
  base = File.basename(full)
  hash = Digest::MD5.hexdigest(File.dirname(full))

  Config.mkpath(File.join(Config.cache_root, hash, subdir), base)
end