Added config variable to preserve old PS1 outside of git repositories. Fixes #44

gitprompt.sh

@@ -104,11 +104,15 @@ function git_prompt_config()
     PROMPT_LEADING_SPACE=" "
   fi
 
+  if [ "x${GIT_PROMPT_ONLY_IN_REPO}" == "x1" ]; then
+    EMPTY_PROMPT=$OLD_GITPROMPT
+  else
     if [[ -n "${VIRTUAL_ENV}" ]]; then
       EMPTY_PROMPT="(${Blue}$(basename "${VIRTUAL_ENV}")${ResetColor}) ${PROMPT_START}$($prompt_callback)${PROMPT_END}"
     else
       EMPTY_PROMPT="${PROMPT_START}$($prompt_callback)${PROMPT_END}"
     fi
+  fi
 
   # fetch remote revisions every other $GIT_PROMPT_FETCH_TIMEOUT (default 5) minutes
   GIT_PROMPT_FETCH_TIMEOUT=${1-5}