          (helm-ag--default-directory directory)
          (helm-ag--default-target (list directory))
          (engine (or engine
-                     (cl-loop for tool in +helm-project-search-engines
-                              if (executable-find (symbol-name tool))
-                              return tool)
+                     (cl-find-if #'executable-find +helm-project-search-engines
+                                 :key #'symbol-name)
                      (and (or (executable-find "grep")
                               (executable-find "git"))
                           'grep)
-                     (error "No search engine specified (is ag, rg, pt or git installed?)")))
+                     (user-error "No search engine specified (is ag, rg, pt or git installed?)")))
          (query (or query
                     (when (use-region-p)
                       (let ((beg (or (bound-and-true-p evil-visual-beginning) (region-beginning)))

            :keymap helm-ag-map
            :history 'helm-ag--helm-history))))

;;;###autoload
(defun +helm/project-search (arg)
  "Performs a project search using the first available search backend from a
list of: ripgrep, ag, pt, git-grep and grep. If ARG (universal argument),
preform search from current directory."
  (interactive "P")
  (call-interactively
   (or (cl-loop for tool in (cl-remove-duplicates +helm-project-search-engines :from-end t)
                if (executable-find (symbol-name tool))
                return (intern (format "+helm/%s%s" tool (if arg "-from-cwd" ""))))
       (if arg
           #'+helm/grep-from-cwd
         #'+helm/grep))))

;; Relative to project root
;;;###autoload
(defun +helm/rg (all-files-p &optional query directory)
  "TODO"
  (interactive "P")
  (+helm-file-search 'rg :query query :in directory :all-files all-files-p))

;;;###autoload
(defun +helm/ag (all-files-p &optional query directory)
  "TODO"
  (interactive "P")
  (+helm-file-search 'ag :query query :in directory :all-files all-files-p))

;;;###autoload
(defun +helm/pt (all-files-p &optional query directory)
  "TODO"
  (interactive "P")
  (+helm-file-search 'pt :query query :in directory :all-files all-files-p))

;;;###autoload
(defun +helm/grep (all-files-p &optional query directory)
  "TODO"
  (interactive "P")
  (+helm-file-search 'grep :query query :in directory :all-files all-files-p))

;; Relative to current directory
;;;###autoload
(defun +helm/rg-from-cwd (recurse-p &optional query)
  "TODO"
  (interactive "P")
  (+helm-file-search 'rg :query query :in default-directory :recursive recurse-p))

;;;###autoload
(defun +helm/ag-from-cwd (recurse-p &optional query)
  "TODO"
  (interactive "P")
  (+helm-file-search 'ag :query query :in default-directory :recursive recurse-p))

;;;###autoload
(defun +helm/pt-from-cwd (recurse-p &optional query)
  "TODO"
  (interactive "P")
  (+helm-file-search 'pt :query query :in default-directory :recursive recurse-p))

;;;###autoload
(defun +helm/grep-from-cwd (recurse-p &optional query)
  "TODO"
  (interactive "P")
  (+helm-file-search 'grep :query query :in default-directory :recursive recurse-p))


;;
;; Project search
;;

(defun +helm-ag-search-args (all-files-p recursive-p)
  (list "ag -S"
        (if IS-WINDOWS "--vimgrep" "--nocolor --nogroup")
        (if all-files-p "-z -a")
        (unless recursive-p "--depth 1")))

(defun +helm-rg-search-args (all-files-p recursive-p)
  (list "rg -S --no-heading --line-number --color never"
        (when all-files-p "-z -uu")
        (unless recursive-p "--maxdepth 1")))

(defun +helm-pt-search-args (all-files-p recursive-p)
  (list "pt -S --nocolor --nogroup -e"
        (if all-files-p "-z -a")
        (unless recursive-p "--depth 1")))

;;
(defun +helm--grep-source ()
  (helm-build-async-source (capitalize (helm-grep-command t))
    :header-name (lambda (_name) "Helm Projectile Grep (C-c ? Help)")
    :candidates-process #'helm-grep-collect-candidates
    :filter-one-by-one #'helm-grep-filter-one-by-one
    :candidate-number-limit 9999
    :nohighlight t
    :keymap helm-grep-map
    :history 'helm-grep-history
    :action (apply #'helm-make-actions helm-projectile-grep-or-ack-actions)
    :persistent-action 'helm-grep-persistent-action
    :persistent-help "Jump to line (`C-u' Record in mark ring)"
    :requires-pattern 2))

(defun +helm--grep-search (directory query prompt &optional all-files-p recursive-p)
  (let* ((default-directory directory)
         (helm-ff-default-directory directory)
         (helm-grep-in-recurse recursive-p)
         (helm-grep-ignored-files
          (unless all-files-p
            (cl-union (projectile-ignored-files-rel) grep-find-ignored-files)))
         (helm-grep-ignored-directories
          (unless all-files-p
            (cl-union (mapcar 'directory-file-name (projectile-ignored-directories-rel))
                      grep-find-ignored-directories)))
         (helm-grep-default-command
          (if (and nil (eq (projectile-project-vcs) 'git))
              (format "git --no-pager grep --no-color -n%%c -e %%p %s -- %%f"
                      (if recursive-p "" "--max-depth 1 "))
            (format "grep -si -a%s %%e -n%%cH -e %%p %%f %s"
                    (if recursive-p " -R" "")
                    (if recursive-p "." "./*"))))
         (helm-grep-default-recurse-command helm-grep-default-command))
    (setq helm-source-grep (+helm--grep-source))
    (helm :sources 'helm-source-grep
          :input query
          :prompt prompt
          :buffer "*helm grep*"
          :default-directory directory
          :keymap helm-grep-map
          :history 'helm-grep-history
          :truncate-lines helm-grep-truncate-lines)))

;;;###autoload
(cl-defun +helm-file-search (engine &key query in all-files (recursive t))
