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+;;; oni-flycheck.el --- Flycheck configuration       -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2019  Tom Willemse
+
+;; Author: Tom Willemse <tom@ryuslash.org>
+;; Keywords: local
+;; Version: 20190130013833
+;; Package-Requires: (flycheck flycheck-inline flycheck-cask)
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Configuration for flycheck.
+
+;;; Code:
+
+(require 'flycheck)
+(require 'flycheck-inline)
+
+(defun oni-flycheck-disable-fci (&rest _)
+  "Disable `fci-mode'."
+  (turn-off-fci-mode))
+
+(defun oni-flycheck-enable-fci (&rest _)
+  "Enable `fci-mode'."
+  (turn-on-fci-mode))
+
+(advice-add 'flycheck-inline-display-phantom
+            :before 'oni-flycheck-disable-fci)
+(advice-add 'flycheck-inline-clear-phantoms
+            :after 'oni-flycheck-enable-fci)
+
+(mapc (lambda (c) (delq c flycheck-checkers))
+      '(python-pylint python-pyflakes))
+
+(setq flycheck-highlighting-mode 'columns)
+
+(when (not (eql system-type 'windows-nt))
+  (setq flycheck-mode-line-prefix "✓"))
+
+(add-hook 'flycheck-mode-hook 'flycheck-cask-setup)
+(add-hook 'flycheck-mode-hook 'flycheck-inline-mode)
+
+;;;###autoload(with-eval-after-load 'flycheck (require 'oni-flycheck))
+
+(provide 'oni-flycheck)
+;;; oni-flycheck.el ends here