Helm: Fix Helm AG command (follow symlinks).

.emacs.d/lisp/init-helm.el

@@ -153,6 +153,10 @@
 ;;; https://github.com/emacs-helm/helm/issues/1118
 ;; (define-key helm-read-file-map (kbd "M-p") 'helm-ff-run-switch-to-history)
 
+;; Follow symlinks with 'ag', otherwise visiting a symlinked files and greping
+;; may yield (unexpectedly) no result.
+(setq helm-grep-ag-command "ag --follow --line-numbers -S --color --nogroup %s %s %s")
+
 (defun ambrevar/helm-grep-git-or-ag (arg)
   "Run `helm-grep-do-git-grep' if possible; fallback to `helm-do-grep-ag' otherwise.
 Requires `call-process-to-string' from `functions'."