add disk_usage conditon
treea4290a72289d21dc86fe7ecfab46f7aa490febae
-rw-r--r-- 19 .gitignore
-rw-r--r-- 6005 Announce.txt
-rw-r--r-- 5988 History.txt
-rw-r--r-- 2505 Manifest.txt
-rw-r--r-- 1583 README.txt
-rw-r--r-- 958 Rakefile
drwxr-xr-x - bin
drwxr-xr-x - examples
drwxr-xr-x - ext
drwxr-xr-x - ideas
drwxr-xr-x - init
drwxr-xr-x - lib
drwxr-xr-x - site
drwxr-xr-x - test