Sha256: fea07e8c2dbd17d0befd232b1d3e99003e4c9e452fc709c900af3b9d88a05282
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Size: 1.39 KB
Versions: 11
Compression:
Stored size: 1.39 KB
Contents
require "fileutils"
module Geminabox
class Geminabox::DiskCache
attr_reader :root_path
def initialize(root_path)
@root_path = root_path
ensure_dir_exists!
end
def flush_key(key)
path = path(key_hash(key))
FileUtils.rm_f(path)
end
def flush
FileUtils.rm_rf(root_path)
ensure_dir_exists!
end
def cache(key)
key_hash = key_hash(key)
read(key_hash) || write(key_hash, yield)
end
def marshal_cache(key)
key_hash = key_hash(key)
marshal_read(key_hash) || marshal_write(key_hash, yield)
end
protected
def ensure_dir_exists!
FileUtils.mkdir_p(root_path)
end
def key_hash(key)
Digest::MD5.hexdigest(key)
end
def path(key_hash)
File.join(root_path, key_hash)
end
def read(key_hash)
read_int(key_hash) { |path| File.read(path) }
end
def marshal_read(key_hash)
read_int(key_hash) { |path| Marshal.load(File.open(path)) }
end
def read_int(key_hash)
path = path(key_hash)
yield(path) if File.exists?(path)
end
def write(key_hash, value)
write_int(key_hash) { |f| f << value }
value
end
def marshal_write(key_hash, value)
write_int(key_hash) { |f| Marshal.dump(value, f) }
value
end
def write_int(key_hash)
File.open(path(key_hash), 'wb') { |f| yield(f) }
end
end
end
Version data entries
11 entries across 11 versions & 3 rubygems