tvl-depot/users/grfn/emacs.d/terraform.el
Griffin Smith 05074550fe fix(gs/emacs): Fix packer-format-buffer
The previous impl of this was formatting the pre-save contents of the
buffer, effectively preventing saving any changes (oops).

Change-Id: I17d4b8ba0943964d700f7dca81af4f46b149c0b8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3644
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2021-09-27 14:55:12 +00:00

31 lines
1.1 KiB
EmacsLisp

;;; -*- lexical-binding: t; -*-
(add-hook 'terraform-mode-hook #'terraform-format-on-save-mode)
(defun packer-format-buffer ()
(interactive)
(let ((buf (get-buffer-create "*packer-fmt*")))
(if (zerop (call-process-region (point-min) (point-max)
"packer" nil buf nil "fmt" "-"))
(let ((point (point))
(window-start (window-start)))
(erase-buffer)
(insert-buffer-substring buf)
(goto-char point)
(set-window-start nil window-start))
(message "packer fmt failed: %s" (with-current-buffer buf (buffer-string))))
(kill-buffer buf)))
(define-minor-mode packer-format-on-save-mode
"Run packer-format-buffer before saving the current buffer"
:lighter nil
(if packer-format-on-save-mode
(add-hook 'before-save-hook #'packer-format-buffer nil t)
(remove-hook 'before-save-hook #'packer-format-buffer t)))
(defun maybe-init-packer ()
(interactive)
(when (s-ends-with-p ".pkr" (file-name-base (buffer-file-name)))
(packer-format-on-save-mode)))
(add-hook 'hcl-mode-hook #'maybe-init-packer)