백업 중복 압축을 피하여 로컬 디스크 공간 요구량 줄이기

[RGJ (Richard - Communiteq)]

@Ed_S

If a subshell were being used, the output of tar could be piped into gzip. But I think in fact some higher level ruby functions may be in use.

cough

lib/compression/tar.rb