Grab Ruby documentation path before switching Git branches

Author: p0deje

generate_api_docs.sh

@@ -11,6 +11,7 @@ py)
   ;;
 rb)
   bazel run //rb:docs || exit
+  docs="$(bazel cquery --output=files //rb:docs 2> /dev/null).runfiles/selenium/docs/api/rb"
   ;;
 *)
   echo "Selenium API docs generation"
@@ -41,7 +42,7 @@ py)
   ;;
 rb)
   rm -rf docs/api/rb
-  mv "$(bazel cquery --output=files //rb:docs 2> /dev/null).runfiles/selenium/docs/api/rb" docs/api/rb
+  mv $docs docs/api/rb
   ;;
 *)
   echo "ERROR: unknown parameter \"$API_DOCS_LANGUAGE\""