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;;; +init.el --- extra init.el stuff -*- lexical-binding: t -*-
;;; Commentary:
;; Yes, I edit my init.el often enough I need to write a mode for it.
;;; Code:
(require '+lisp)
;;; Sort `setup' forms
(defun +init--sexp-setup-p (sexp-str &optional head)
"Is SEXP-STR a `setup' form, optionally with a HEAD form?"
(let ((head (if (and head (symbolp head))
(symbol-name head)
head)))
(and (string-match-p (rx (: bos (* whitespace) "(setup")) sexp-str)
(if head
(string-match-p (concat "\\`.*" head) sexp-str)
t))))
(defun +init-sort ()
"Sort init.el.
Sort based on the following heuristic: `setup' forms (the
majority of my init.el) are sorted after everything else, and
within that group, forms with a HEAD of `:require' are sorted
first, and `:straight' HEADs are sorted last. All other forms
are sorted lexigraphically."
(interactive)
;; I have to make my own "version" of `save-excursion', since the mark and
;; point are lost (I think that's the problem) when sorting the buffer.
(let* ((current-point (point))
(current-defun (beginning-of-defun))
(defun-point (- current-point (point)))
(current-defun-re (buffer-substring-no-properties (line-beginning-position)
(line-end-position))))
(widen) ; It makes no sense to `save-restriction'
(+lisp-sort-sexps
(point-min) (point-max)
;; Key function
nil
;; Sort function
(lambda (s1 s2)
(let ((s1 (cdr s1)) (s2 (cdr s2)))
(cond
;; Sort everything /not/ `setup' /before/ `setup'
((and (+init--sexp-setup-p s1)
(not (+init--sexp-setup-p s2)))
nil)
((and (+init--sexp-setup-p s2)
(not (+init--sexp-setup-p s1)))
t)
;; otherwise...
(t (let ((s1-straight (+init--sexp-setup-p s1 :straight))
(s2-straight (+init--sexp-setup-p s2 :straight))
(s1-require (+init--sexp-setup-p s1 :require))
(s2-require (+init--sexp-setup-p s2 :require)))
(cond
;; `:straight' setups have extra processing
((and s1-straight s2-straight)
(let* ((r (rx (: ":straight" (? "-when") (* space) (? "("))))
(s1 (replace-regexp-in-string r "" s1))
(s2 (replace-regexp-in-string r "" s2)))
(string< s1 s2)))
;; `:require' setups go first
((and s1-require (not s2-require)) t)
((and s2-require (not s1-require)) nil)
;; `:straight' setups go last
((and s1-straight (not s2-straight)) nil)
((and s2-straight (not s1-straight)) t)
;; otherwise, sort lexigraphically
(t (string< s1 s2)))))))))
;; Return to original point relative to the defun we were in
(goto-char (point-min))
(re-search-forward current-defun-re)
(beginning-of-defun)
(goto-char (+ (point) defun-point))
))
(defun +init-sort-then-save ()
"Sort init.el, then save it."
(interactive)
(+init-sort)
(if (fboundp #'user-save-buffer)
(user-save-buffer)
(save-buffer)))
;;; Add `setup' forms to `imenu-generic-expression'
(defun +init-add-setup-to-imenu ()
"Recognize `setup' forms in `imenu'."
;; `imenu-generic-expression' automatically becomes buffer-local when set
(setf (alist-get "Setup" imenu-generic-expression nil nil #'equal)
(list
(rx (: "(setup" (+ space)
(group (? "(") (* nonl))))
1))
(when (boundp 'consult-imenu-config)
(setf (alist-get ?s
(plist-get
(alist-get 'emacs-lisp-mode consult-imenu-config)
:types))
'("Setup"))))
;;; Major mode
;;;###autoload
(define-derived-mode +init-mode emacs-lisp-mode "Init.el"
"`emacs-lisp-mode', but with a few specialized bits and bobs for init.el.")
;;;###autoload
(add-to-list 'auto-mode-alist '("/init\\.el\\'" . +init-mode))
(provide '+init)
;;; +init.el ends here
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