Run black on save

recursiveMake · recursiveMake · commit 110fa4cf1e84 · 2020-10-02T14:01:13.000-04:00
Can be disabled with a .dir-locals.el with

```
;;; Directory Local Variables
;;; For more information see (info "(emacs) Directory Variables")

((nil . ((my-black-fix-code-on-save . t))))
```
diff --git a/custom.el b/custom.el
@@ -7,7 +7,42 @@
  '(lsp-auto-guess-root t)
  '(package-selected-packages
    (quote
-    (all-the-icons better-defaults cider diff-hl dockerfile-mode doom-modeline ein elpy ess exec-path-from-shell flycheck go-autocomplete go-mode groovy-mode lsp-mode lsp-ui markdown-mode org paredit projectile py-autopep8 rainbow-delimiters smex tagedit use-package virtualenvwrapper yasnippet))))
+    (
+     all-the-icons
+     better-defaults
+     cider
+     clojure-mode-extra-font-locking
+     diff-hl
+     dockerfile-mode
+     doom-modeline
+     ein
+     elpy
+     ess
+     exec-path-from-shell
+     flycheck
+     go-autocomplete
+     go-mode
+     groovy-mode
+     lsp-mode
+     lsp-ui
+     magit
+     markdown-mode
+     org
+     paredit
+     projectile
+     py-autopep8
+     rainbow-delimiters
+     salt-mode
+     smex
+     tagedit
+     use-package
+     virtualenvwrapper
+     yasnippet
+     )))
+ '(safe-local-variable-values
+   (quote
+    ((my-black-fix-code-on-save . t)
+     (my-black-fix-code . t)))))
 
 (custom-set-faces
  ;; custom-set-faces was added by Custom.
diff --git a/customizations/setup-python.el b/customizations/setup-python.el
@@ -13,5 +13,14 @@
 
 (setq python-shell-interpreter "python3")
 
+(defvar my-black-fix-code-on-save nil
+  "If true, code will be blackened on save")
+
+(defun my-black-fix-code ()
+  (when my-black-fix-code-on-save
+      (elpy-black-fix-code)))
+
+(add-hook 'before-save-hook 'my-black-fix-code)
+
 (add-hook 'python-mode-hook (lambda ()
                               (flymake-mode -1)))
