How to insert a flyspell hook on Magit via `use-package` declaration?

Question

I am rewriting my Emacs config file to fully use use-package and organize code. Currently, I have

(use-package magit
  :custom
  (magit-display-buffer-function #'magit-display-buffer-same-window-except-diff-v1))

;; Flyspell
(add-hook 'git-commit-setup-hook 'git-commit-turn-on-flyspell)

It works but things are splited and they could be together. When I am writing commit messages, flyspell is activated and I can easily see grammar mistakes.

I tried to bring everything together in one s-expression with:

;; Magit configuration
(use-package magit
  :custom
  (magit-display-buffer-function #'magit-display-buffer-same-window-except-diff-v1)
  :hook ((git-commit-setup-hook . git-commit-turn-on-flyspell)))

Unfortunately, it does not work. How can I fix this?

Thanks.

Answer 1

Here is from the README of use-package

When using :hook omit the "-hook" suffix if you specify the hook explicitly, as this is appended by default. For example the following code will not work as it attempts to add to the prog-mode-hook-hook which does not exist:

;; DOES NOT WORK
(use-package ace-jump-mode
  :hook (prog-mode-hook . ace-jump-mode))

If you do not like this behaviour, set use-package-hook-name-suffix to nil. By default the value of this variable is "-hook".