Add forge-fmt to emacs Solidity

lisp/init-solidity.el

@@ -123,5 +123,15 @@
 
 (add-hook 'solidity-mode-hook 'ethereum-c-mode-hook)
 
+;; https://www.getfoundry.sh/config/editors#emacs
+(defun forge-fmt ()
+  "Format current buffer with forge fmt."
+  (interactive)
+  (shell-command (format "forge fmt %s" (buffer-file-name)))
+  (revert-buffer t t t))
+(add-hook 'solidity-mode-hook
+  (lambda ()
+    (add-hook 'after-save-hook #'forge-fmt nil t)))
+
 (provide 'init-solidity)
 ;;; init-solidity.el ends here