I'm using helm with projectile and trying to exclude various files from the output that are project specific (i.e with .projectile files, not globally variable). The problem is that it never works for me, e.g in my .emacs.d folder i have a .cask folder, so i'm adding the following line to the .projectile file:
-/.cask
This invalidates my projectile cache and everything is clean, but if i open any file under .cask directory, it's added to the cache and i can see the file in helm-projectile output. Maybe i understand the guide incorrectly, but adding -/.cask to the .projectile file i expect it to ignore any file under this project root path.