helm-do-grep-config.el

(setq helm-grep-default-command "grep.pl %p %f")
(setq helm-grep-default-recurse-command
      (concat "find %f "
              "-type d \\( -name '.svn' -o -name '.git' \\) -prune"
              " -o "
              "-type f -name \"$(echo -n '%e'"
              " | "
              "sed -r 's/--include=([^ ]*) --exclude.*/\\1/'"
              " | "
              "sed 's/\\\\//g')\""
              " -print0 | xargs -0 grep.pl %p"))

;; helm-grep-highlight-match を multi-match モードで強制的に起動する
(defadvice helm-grep-highlight-match (around ad-helm-grep-highlight-match activate)
  (ad-set-arg 1 t)
  ad-do-it)