emacs.d/custom/fcuny-flycheck.el


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(require 'fcuny-defuns)

(use-package flycheck
  :ensure t
  :hook (prog-mode . flycheck-mode )
  :custom ((flycheck-idle-change-delay 2)
           (flycheck-emacs-lisp-load-path 'inherit)
           (flycheck-highlighting-mode 'lines)
           (flycheck-check-syntax-automatically '(mode-enabled save)))
  :config
  (progn
    (setq-default flycheck-disabled-checkers '(emacs-lisp-checkdoc))

    (flycheck-define-checker fcuny/source-check-python
      "A syntax checker for python source code in Source, using `check.pex'"
      :command ("check.pex" source)
      ;;; errors are reported like this:
      ;;; E241:ERROR   <file name>:<line> <message>
      :error-patterns ((error line-start (id (1+ nonl)) ":ERROR" (1+ nonl) ":" line (message) line-end)
                       (warning line-start (id (1+ nonl)) ":WARNING" (1+ nonl) ":" line (message) line-end))
      :predicate fcuny/check-source-predicate-python-p
      :modes (python-mode))
    (add-to-list 'flycheck-checkers 'fcuny/source-check-python)))

(provide 'fcuny-flycheck)