require 'briar' BRIAR_RM_CAL_TARGETS='rm-cal-targets' BRIAR_INSTALL_CALABASH_GEM='calabash-gem' BRIAR_INSTALL_CALABASH_SERVER='calabash-server' BRIAR_INSTALL_GEM='gem' BRIAR_RESIGN_IPA='resign' BRIAR_VERSION_CMD='version' BRIAR_CMD_INSTALL='install' def print_usage puts <