Run `prettier-stylelint --write` on css file opened in Emacs buffer when saving it

prettier-stylelint-auto.el

;;; runs `prettier-stylelint --write` on the current file after save
;;; alpha quality -- use at your own risk

  (defun prettier-stylelint-fix-file-and-revert ()
    "Prettify current file and apply fixes only in css-mode or scss-mode"
    (interactive)
    (when (or (eq major-mode 'css-mode) (eq major-mode 'scss-mode))
      (message "prettier-stylelint fixing your file" (buffer-file-name))  ;;optional line, you can remove it
      (shell-command (concat "prettier-stylelint --quiet --write " (buffer-file-name)))
      (revert-buffer t t)))

(add-hook 'after-save-hook #'prettier-stylelint-fix-file-and-revert)

Really cool. prettier-stylelint not only prettifies current file, but also runs stylelint's --fix, so you end up with nice looking and fixed file with just one command.

But it is slooooow. I wish there was something like eslint_d and eslintd-fix, but for stylelint.

Don't use this.
Instead use stylelintd-fix.el (based on eslintd-fix.el)