GzipReader does not define `#external_encoding`
I want to store/load some yaml and other text data in gz for space efficiency. I thought it's most efficient to read/write directly to/from a gzip stream. But seems like the GzipReader io object does not support everything that a regular file io object does. I spotted the #external_encoding method. So for example to load YAML directly from gzip I use the following method:
def load_yaml_from_gz(gz) loaded = nil Zlib::GzipReader.open(gz) do |f| class << f def external_encoding Encoding::UTF_8 end end loaded = YAML.load(f, gz) end return loaded end
I need the monkey-patching because otherwise the YAML.load method fails for no #external_encoding method defined.
To avoid monkey patching just to read some text from a gzip archive I propose that GzipReader implements #external_encoding the same way as File does.