helm-gtags excluding folders

[tsengf]

I use helm-projectile which allow the user to specify the folders which are indexed using the file .projectile which sits at the root of the project. Is there a similar functionality for helm-gtags. There is a specific folder which I do not helm-gtags to index.

[yanglimingcn]

gtags.conf has configuration data for global(1), gozilla(1), gtags(1) and htags(1). They look for the following files in this order, and read from the first one that exists and is readable.

(1) –gtagsconf file
(2) $GTAGSCONF
(3) [project root]/gtags.conf
(4) [project root]/[objdir]/gtags.conf
(5) $HOME/.globalrc
(6) /etc/gtags.conf
(7) [sysconfdir]/gtags.conf

i think you can use gtags.conf