gvmtool/gvm — pull request #200 by travisfw (2013-07-30 20:04:21+00:00)
Title: persist offline mode between sessions

touch a file in GVM_DIR named after the environment variable
GVM_FORCE_OFFLINE when `gvm offline enable` is called. If this file
exists when a new shell is started, the GVM_FORCE_OFFLINE variable will
be set to "true" before any network calls are made.