doomemacs/init/init-fly.el

(use-package flycheck
  :init
  (setq-default flycheck-indication-mode 'right-fringe
                ;; Removed checks on idle/change for snappiness
                flycheck-check-syntax-automatically '(save mode-enabled idle-change)
                flycheck-disabled-checkers '(emacs-lisp-checkdoc make))
  :config
  (progn ; flycheck settings
    (add-hooks '(ruby-mode-hook
                 python-mode-hook
                 php-mode-hook
                 lua-mode-hook
                 shell-mode-hook
                 scss-mode-hook
                 c++-mode-hook
                 c-mode-hook)
               'flycheck-mode)

    (my--cleanup-buffers-add "^\\*Flycheck.*\\*$")

    (bind 'normal flycheck-error-list-mode-map
          [escape] 'kill-this-buffer
          "q"      'kill-this-buffer)

    (evil-initial-state 'flycheck-error-list-mode 'emacs)

    (defun my--evil-flycheck-buffer ()
      (if (and (featurep 'flycheck) flycheck-mode)
          (flycheck-buffer)))

    ;; Check buffer when normal mode is entered
    (add-hook 'evil-normal-state-entry-hook 'my--evil-flycheck-buffer)
    ;; And on ESC in normal mode.
    (defadvice evil-force-normal-state (after evil-esc-flycheck-buffer activate)
      (my--evil-flycheck-buffer))))

(use-package flyspell :commands flyspell-mode)


(provide 'init-fly)
;;; init-fly.el ends here