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My Emacs

This repo has been moved to: https://git.miers.xyz/laurens/emacs

Elpaca

(defvar elpaca-installer-version 0.7)
(defvar elpaca-directory (expand-file-name "elpaca/" user-emacs-directory))
(defvar elpaca-builds-directory (expand-file-name "builds/" elpaca-directory))
(defvar elpaca-repos-directory (expand-file-name "repos/" elpaca-directory))
(defvar elpaca-order '(elpaca :repo "https://github.com/progfolio/elpaca.git"
                              :ref nil :depth 1
                              :files (:defaults "elpaca-test.el" (:exclude "extensions"))
                              :build (:not elpaca--activate-package)))
(let* ((repo  (expand-file-name "elpaca/" elpaca-repos-directory))
       (build (expand-file-name "elpaca/" elpaca-builds-directory))
       (order (cdr elpaca-order))
       (default-directory repo))
  (add-to-list 'load-path (if (file-exists-p build) build repo))
  (unless (file-exists-p repo)
    (make-directory repo t)
    (when (< emacs-major-version 28) (require 'subr-x))
    (condition-case-unless-debug err
        (if-let ((buffer (pop-to-buffer-same-window "*elpaca-bootstrap*"))
                 ((zerop (apply #'call-process `("git" nil ,buffer t "clone"
                                                 ,@(when-let ((depth (plist-get order :depth)))
                                                     (list (format "--depth=%d" depth) "--no-single-branch"))
                                                 ,(plist-get order :repo) ,repo))))
                 ((zerop (call-process "git" nil buffer t "checkout"
                                       (or (plist-get order :ref) "--"))))
                 (emacs (concat invocation-directory invocation-name))
                 ((zerop (call-process emacs nil buffer nil "-Q" "-L" "." "--batch"
                                       "--eval" "(byte-recompile-directory \".\" 0 'force)")))
                 ((require 'elpaca))
                 ((elpaca-generate-autoloads "elpaca" repo)))
            (progn (message "%s" (buffer-string)) (kill-buffer buffer))
          (error "%s" (with-current-buffer buffer (buffer-string))))
      ((error) (warn "%s" err) (delete-directory repo 'recursive))))
  (unless (require 'elpaca-autoloads nil t)
    (require 'elpaca)
    (elpaca-generate-autoloads "elpaca" repo)
    (load "./elpaca-autoloads")))
(add-hook 'after-init-hook #'elpaca-process-queues)
(elpaca `(,@elpaca-order))
;; Install use-package support
(elpaca elpaca-use-package
  ;; Enable use-package :ensure support for Elpaca.
  (elpaca-use-package-mode)
  )

General config

Bell

The audible bell is annoying AF.

(setq visible-bell 1)

Enable column numbers

(setq column-number-mode 1)

Delete trailing whitespaces

(add-hook 'before-save-hook 'delete-trailing-whitespace)

Save history and recent files

;; The built-in `savehist-mode' saves minibuffer histories.  Vertico
;; can then use that information to put recently selected options at
;; the top.
;;
;; Further reading: https://protesilaos.com/emacs/dotemacs#h:25765797-27a5-431e-8aa4-cc890a6a913a
(savehist-mode 1)

;; The built-in `recentf-mode' keeps track of recently visited files.
;; You can then access those through the `consult-buffer' interface or
;; with `recentf-open'/`recentf-open-files'.
;;
;; I do not use this facility, because the files I care about are
;; either in projects or are bookmarked.
(recentf-mode 1)

Backups

(defvar myrmi-backup-directory (concat user-emacs-directory "backups"))
(if (not (file-exists-p myrmi-backup-directory))
    (make-directory myrmi-backup-directory t)
  )
(setq backup-directory-alist `(("." . ,myrmi-backup-directory)))
(setq make-backup-files t
      backup-by-copying t
      version-control t
      delete-old-versions t
      delete-by-moving-to-trash t
      kept-old-versions 6
      kept-new-versions 9
      auto-save-default t
      auto-save-timeout 20
      auto-save-interval 200
  )

Yes-or-no

Because I’m lazy, important yes-or-no questions can be answered with y-or-n:

(defalias 'yes-or-no-p 'y-or-n-p)

Switch windows

(global-set-key (kbd "M-o") 'other-window)

Maximize at startup

More info : https://www.emacswiki.org/emacs/FullScreen

(push '(fullscreen . maximized) default-frame-alist)

ibuffer

Use list-buffers bigger brother.

(global-set-key [remap list-buffers] 'ibuffer)

Mark

(global-set-key (kbd "M-SPC") 'mark-word)

Isearch

Display number of matches:

(setq-default isearch-lazy-count t)

Reference that might be interesting for later: https://endlessparentheses.com/leave-the-cursor-at-start-of-match-after-isearch.html

Abbrev

(global-set-key [remap dabbrev-expand] 'hippie-expand)

Zap

(global-set-key (kbd "M-S-z") 'zap-up-to-char)

Spell checking

Look into customizing the ‘ispell’ group.

(add-hook 'prog-mode-hook 'flyspell-prog-mode)

Delete selection mode

(delete-selection-mode t)

Enable disabled commands

Some commands are disabled to protect the user. Narrow-region/page is a really handy feature, enable it:

(put 'narrow-to-page 'disabled nil)
(put 'narrow-to-region 'disabled nil)

Use-package

Always ensure

(require 'use-package-ensure)
(setq use-package-always-ensure t)

Adaptive cursor width

Make cursor the width of the character it is under f.e. full width of a tab.

(setq x-stretch-cursor t)

Resize-mode

Minor-mode to easily resize frames (works with EXWM (firefox, …)). Courtesy goes to kuanyui (https://gist.github.com/kuanyui/65a408d393871048771c):

;;; resize-frame.el --- A minor mode to resize frames easily.  -*- lexical-binding: t; -*-

;; Copyright (C) 2014  kuanyui

;; Author: kuanyui <[email protected]>
;; Keywords: frames, tools, convenience
;; License: WTFPL 1.0

;;; Commentary:

;; Press "ESC `" and use arrow-keys or i/j/k/l to adjust frames. press any key to done.

;;; Code:

(defvar resize-frame-map
  (let ((map (make-keymap)))
    (define-key map (kbd "<up>") 'enlarge-window)
    (define-key map (kbd "<down>") 'shrink-window)
    (define-key map (kbd "<right>") 'enlarge-window-horizontally)
    (define-key map (kbd "<left>") 'shrink-window-horizontally)
    (set-char-table-range (nth 1 map) t 'resize-frame-done)
    (define-key map (kbd "C-p") 'enlarge-window)
    (define-key map (kbd "C-n") 'shrink-window)
    (define-key map (kbd "C-f") 'enlarge-window-horizontally)
    (define-key map (kbd "C-b") 'shrink-window-horizontally)
    map))

(define-minor-mode resize-frame
  "A simple minor mode to resize-frame.
C-c C-c to apply."
  ;; The initial value.
  :init-value nil
  ;; The indicator for the mode line.
  :lighter " ResizeFrame"
  ;; The minor mode bindings.
  :keymap resize-frame-map
  :global t
  (if (<= (length (window-list)) 1)
      (progn (setq resize-frame nil)
             (message "Only root frame exists, abort."))
      (message "Use arrow-keys or i/j/k/l to adjust frames.")))

(defun resize-frame-done ()
  (interactive)
  (setq resize-frame nil)
  (message "Done."))

(global-set-key (kbd "C-x C-r") 'resize-frame)

Completion

Minibuffer

;; Enable vertico
(use-package vertico
  ;; :custom
  ;; (vertico-scroll-margin 0) ;; Different scroll margin
  ;; (vertico-count 20) ;; Show more candidates
  ;; (vertico-resize t) ;; Grow and shrink the Vertico minibuffer
  ;; (vertico-cycle t) ;; Enable cycling for `vertico-next/previous'
  :init
  (vertico-mode))

Consult

(use-package consult
  ;; Replace bindings. Lazily loaded by `use-package'.
  :bind (;; C-c bindings in `mode-specific-map'
         ;; ("C-c M-x" . consult-mode-command)
         ;; ("C-c h" . consult-history)
         ;; ("C-c k" . consult-kmacro)
         ;; ("C-c m" . consult-man)
         ;; ("C-c i" . consult-info)
         ([remap Info-search] . consult-info)
         ;; C-x bindings in `ctl-x-map'
         ("C-x M-:" . consult-complex-command)     ;; orig. repeat-complex-command
         ("C-x b" . consult-buffer)                ;; orig. switch-to-buffer
         ("C-x 4 b" . consult-buffer-other-window) ;; orig. switch-to-buffer-other-window
         ("C-x 5 b" . consult-buffer-other-frame)  ;; orig. switch-to-buffer-other-frame
         ("C-x t b" . consult-buffer-other-tab)    ;; orig. switch-to-buffer-other-tab
         ("C-x r b" . consult-bookmark)            ;; orig. bookmark-jump
         ("C-x p b" . consult-project-buffer)      ;; orig. project-switch-to-buffer
         ;; Custom M-# bindings for fast register access
         ;; ("M-#" . consult-register-load)
         ("M-'" . consult-register-store)          ;; orig. abbrev-prefix-mark (unrelated)
         ;; ("C-M-#" . consult-register)
         ;; Other custom bindings
         ("M-y" . consult-yank-pop)                ;; orig. yank-pop
         ;; M-g bindings in `goto-map'
         ;; ("M-g e" . consult-compile-error)
         ;; ("M-g f" . consult-flymake)               ;; Alternative: consult-flycheck
         ("M-g g" . consult-goto-line)             ;; orig. goto-line
         ("M-g M-g" . consult-goto-line)           ;; orig. goto-line
         ;; ("M-g o" . consult-outline)               ;; Alternative: consult-org-heading
         ;; ("M-g m" . consult-mark)
         ;; ("M-g k" . consult-global-mark)
         ("M-i" . consult-imenu)
         ("M-I" . consult-imenu-multi)
         ;; M-s bindings in `search-map'
         ;; ("M-s d" . consult-find)                  ;; Alternative: consult-fd
         ;; ("M-s c" . consult-locate)
         ;; ("M-s g" . consult-grep)
         ;; ("M-s G" . consult-git-grep)
         ;; ("M-s r" . consult-ripgrep)
         ("M-s l" . consult-line)
         ;; ("M-s L" . consult-line-multi)
         ;; ("M-s k" . consult-keep-lines)
         ;; ("M-s u" . consult-focus-lines)
         ;; Isearch integration
         ("M-s e" . consult-isearch-history)
         :map isearch-mode-map
         ("M-e" . consult-isearch-history)         ;; orig. isearch-edit-string
         ("M-s e" . consult-isearch-history)       ;; orig. isearch-edit-string
         ("M-s l" . consult-line)                  ;; needed by consult-line to detect isearch
         ("M-s L" . consult-line-multi)            ;; needed by consult-line to detect isearch
         ;; Minibuffer history
         :map minibuffer-local-map
         ("M-s" . consult-history)                 ;; orig. next-matching-history-element
         ("M-r" . consult-history)                 ;; orig. previous-matching-history-element
         )

  ;; Enable automatic preview at point in the *Completions* buffer. This is
  ;; relevant when you use the default completion UI.
  :hook (completion-list-mode . consult-preview-at-point-mode)

  ;; The :init configuration is always executed (Not lazy)
  :init

  ;; Optionally configure the register formatting. This improves the register
  ;; preview for `consult-register', `consult-register-load',
  ;; `consult-register-store' and the Emacs built-ins.
  ;; (setq register-preview-delay 0.5
        ;; register-preview-function #'consult-register-format)

  ;; Optionally tweak the register preview window.
  ;; This adds thin lines, sorting and hides the mode line of the window.
  ;; (advice-add #'register-preview :override #'consult-register-window)

  ;; Use Consult to select xref locations with preview
  (setq xref-show-xrefs-function #'consult-xref
        xref-show-definitions-function #'consult-xref)

  ;; Configure other variables and modes in the :config section,
  ;; after lazily loading the package.
  ;; :config

  ;; Optionally configure preview. The default value
  ;; is 'any, such that any key triggers the preview.
  ;; (setq consult-preview-key 'any)
  ;; (setq consult-preview-key "M-.")
  ;; (setq consult-preview-key '("S-<down>" "S-<up>"))
  ;; For some commands and buffer sources it is useful to configure the
  ;; :preview-key on a per-command basis using the `consult-customize' macro.
  ;; (consult-customize
   ;; consult-theme :preview-key '(:debounce 0.2 any)
   ;; consult-ripgrep consult-git-grep consult-grep
   ;; consult-bookmark consult-recent-file consult-xref
   ;; consult--source-bookmark consult--source-file-register
   ;; consult--source-recent-file consult--source-project-recent-file
   ;; :preview-key "M-."
   ;; :preview-key '(:debounce 0.4 any))

  ;; Optionally configure the narrowing key.
  ;; Both < and C-+ work reasonably well.
  ;; (setq consult-narrow-key "<") ;; "C-+"

  ;; Optionally make narrowing help available in the minibuffer.
  ;; You may want to use `embark-prefix-help-command' or which-key instead.
  ;; (keymap-set consult-narrow-map (concat consult-narrow-key " ?") #'consult-narrow-help)
)

Corfu

(use-package corfu
  ;; Optional customizations
  :custom
  (corfu-cycle t)                ;; Enable cycling for `corfu-next/previous'
  (corfu-auto t)                 ;; Enable auto completion
  ;; (corfu-separator ?\s)          ;; Orderless field separator
  ;; (corfu-quit-at-boundary nil)   ;; Never quit at completion boundary
  ;; (corfu-quit-no-match nil)      ;; Never quit, even if there is no match
  ;; (corfu-preview-current nil)    ;; Disable current candidate preview
  ;; (corfu-preselect 'prompt)      ;; Preselect the prompt
  ;; (corfu-on-exact-match nil)     ;; Configure handling of exact matches
  ;; (corfu-scroll-margin 5)        ;; Use scroll margin

  ;; Enable Corfu only for certain modes. See also `global-corfu-modes'.
  ;; :hook ((prog-mode . corfu-mode)
  ;;        (shell-mode . corfu-mode)
  ;;        (eshell-mode . corfu-mode))

  ;; Recommended: Enable Corfu globally.  This is recommended since Dabbrev can
  ;; be used globally (M-/).  See also the customization variable
  ;; `global-corfu-modes' to exclude certain modes.
  :init
  (global-corfu-mode))

Orderless

(use-package orderless
  :demand t
  :custom
  (completion-styles '(orderless basic))
  ;;    (gnus-completion-styles '(orderless substring basic))
  ;;    (completion-category-overrides '((file (styles basic partial-completion))))

;; Below not necessary if using vertico
;;  (completion-category-overrides '(
;;                                   (command (styles orderless basic partial-completion))
;;                                   (file (styles orderless basic partial-completion))
;;;;                                   (buffer (styles orderless basic))
;;                                   (variable (styles orderless basic))
;;                                   (symbol (styles orderless basic))
;;                                   (consult-location (styles orderless))
;;                                   (consult-multi (styles orderless))
;;                                   )
;;                                 )
)

Marginalia

;; Enable rich annotations using the Marginalia package
(use-package marginalia
  ;; Bind `marginalia-cycle' locally in the minibuffer.  To make the binding
  ;; available in the *Completions* buffer, add it to the
  ;; `completion-list-mode-map'.
  :bind (:map minibuffer-local-map
           ("M-A" . marginalia-cycle))

  ;; The :init section is always executed.
  :init
  ;; Marginalia must be activated in the :init section of use-package such that
  ;; the mode gets enabled right away. Note that this forces loading the
  ;; package.
  (marginalia-mode))

Dired

Dired-x

(with-eval-after-load 'dired
  (require 'dired-x)
  ;; Set dired-x global variables here.  For example:
  ;; (setq dired-x-hands-off-my-keys nil)
  )

(add-hook 'dired-mode-hook
          (lambda ()
            ;; Set dired-x buffer-local variables here.  For example:
            ;; (dired-omit-mode 1)
            ))

Whole-line-or-region

Source: https://github.com/purcell/whole-line-or-region

Operate on the current line if no region is active.

(use-package whole-line-or-region

    :config
        (whole-line-or-region-global-mode 1)
)

Terminal

Eshell

Smart mode

Plan 9 smart terminal features, for more info: https://www.masteringemacs.org/article/complete-guide-mastering-eshell

(require 'eshell)
(require 'em-smart)
(setq eshell-where-to-jump 'begin)
(setq eshell-review-quick-commands nil)
(setq eshell-smart-space-goes-to-end t)

(add-hook 'eshell-mode-hook 'eshell-smart-initialize)

Toggle between char- and line-mode

Courtesy goes to https://joelmccracken.github.io/entries/switching-between-term-mode-and-line-mode-in-emacs-term/

(require 'term)

(defun jnm/term-toggle-mode ()
  "Toggles term between line mode and char mode"
  (interactive)
  (if (term-in-line-mode)
      (term-char-mode)
    (term-line-mode)))

(define-key term-mode-map (kbd "C-c C-j") 'jnm/term-toggle-mode)
(define-key term-mode-map (kbd "C-c C-k") 'jnm/term-toggle-mode)

(define-key term-raw-map (kbd "C-c C-j") 'jnm/term-toggle-mode)
(define-key term-raw-map (kbd "C-c C-k") 'jnm/term-toggle-mode)

For the keybindings, we have to defien them in both raw and line mode. From the help page of term mode: If you define custom keybindings, make sure to assign them to the correct keymap (or to both): use ‘term-raw-map’ in raw mode and ‘term-mode-map’ in line mode.

Theme

(use-package monokai-theme

  :init
    (load-theme 'monokai t)
)

Dashboard

(use-package dashboard
  :config
  (add-hook 'elpaca-after-init-hook #'dashboard-insert-startupify-lists)
  (add-hook 'elpaca-after-init-hook #'dashboard-initialize)
  (dashboard-setup-startup-hook))

Hydra

Install and wait for hydra to be available since we are using it in this init.el :

(use-package hydra
  :ensure (:wait t)
  )

Text zoom

(defhydra hydra-zoom (global-map "<f1>")
  "zoom"
  ("g" text-scale-increase "in")
  ("l" text-scale-decrease "out")
)

Zygospore

Revert C-x 1 by pressing C-x 1 again: https://github.com/louiskottmann/zygospore.el

FYI: At one point, used this together with sr-speedbar. They did not play well together…

(use-package zygospore
  :config
    (global-set-key (kbd "C-x 1") 'zygospore-toggle-delete-other-windows)
)

Iedit

Highlight occurences of symbol and replace them simultanously. Shortkey: C-;

https://github.com/victorhge/iedit

(use-package iedit)

Programming

Angry faces

(defface highlight-angry-faces
  '(
    (default :background "Yellow" :foreground "Red")
    )
  "Angry faces highlighting."
  :group 'basic-faces
)

(mapc (lambda (mode)
        (font-lock-add-keywords
         mode
         '(
           ("\\<\\(FIXME\\)" 1 'highlight-angry-faces t)
           ("\\<\\(TODO\\)" 1 'highlight-angry-faces t)
           )))
      '(text-mode emacs-lisp-mode rust-mode zig-mode c-ts-mode c-mode prog-mode)
)

Electric pair

(add-hook 'prog-mode-hook 'electric-pair-mode)

Eglot

(use-package eglot)

(setq eglot-stay-out-of '(xref))
(add-hook 'prog-mode-hook 'eglot-ensure)
(add-hook 'eglot-managed-mode-hook (lambda ()
				       (if (eglot-managed-p)
					   (add-hook 'xref-backend-functions 'eglot-xref-backend)
					 (remove-hook 'xref-backend-functions 'eglot-xref-backend)
					   )))

Markdown-mode

(use-package markdown-mode)

Yasnippet

(use-package yasnippet
  :hook
  (prog-mode . yas-minor-mode)
  (org-mode . yas-minor-mode)
  :config
    (yas-reload-all)
)

Magit

Transient

Magit depends on this and it seems it’s not installed as a dependency, so install it explicitly.

(use-package transient
  :ensure (:wait t)
)

Core

(use-package magit
:ensure (:wait t)
)

Extra commands

Update all submodules
(transient-define-suffix magit-submodule-update-all ()
 "Update all submodules"
 :description "Update All     git submodule update --init --recursive"
 (interactive)
 (magit-with-toplevel
   (magit-run-git-async "submodule" "update" "--force")))

(transient-append-suffix 'magit-submodule "f"
  '("U" magit-submodule-update-all))

Dumb-jump

(use-package dumb-jump
  :init
  (add-hook 'xref-backend-functions #'dumb-jump-xref-activate)
)

C-programming

Tree-sitter

(add-to-list 'major-mode-remap-alist '(c-mode . c-ts-mode))

Compilation

Goto end of buffer on completion

Compilation output is almost always bigger than a normal buffer. Move to the end if the compilation finishes.

(defun goto-end-compilation-buffer (comp-buffer msg)
  (goto-char (point-max))
  )

(add-hook 'compilation-finish-functions #'goto-end-compilation-buffer)

Rust

(use-package rust-mode
  :init
  (setq rust-mode-treesitter-derive t))

Zig

(use-package zig-mode)

Python

(use-package python-mode)

Multiple cursors

(use-package multiple-cursors
  :bind
    ("C-x r a" . mc/edit-beginnings-of-lines)
    ("C-x r e" . mc/edit-ends-of-lines)
    ("C->" . mc/mark-next-like-this)
    ("C-<" . mc/mark-previous-like-this)
    ("C-c C->" . mc/mark-all-like-this)
)

Volatile highlights

Show/highlight changes when doing undo/yanks/kills/…

https://github.com/k-talo/volatile-highlights.el

(use-package volatile-highlights
  :config
    (volatile-highlights-mode t)
)

Comment-dwim-2

Replacement for built-in comment-dwim, more comment features.

https://github.com/remyferre/comment-dwim-2

(use-package comment-dwim-2
    :config
      (global-set-key (kbd "M-;") 'comment-dwim-2)
)

Projectile

(use-package projectile
  :config
    (setq projectile-enable-caching t)
    (define-key projectile-mode-map (kbd "C-x p") 'projectile-command-map)
    (projectile-mode +1)
    (require 'project)
    (add-hook 'project-find-functions #'project-projectile)
)

Org

General config

Super/Sub-scripts

Use {} for subscripting:

https://orgmode.org/manual/Subscripts-and-superscripts.html

(setq org-use-sub-superscripts '{})

Indentation

Preserve indentation in SRC blocks

(setq org-src-preserve-indentation t)

Org bullets

(use-package org-bullets
  :config
    (add-hook 'org-mode-hook (lambda () (org-bullets-mode))))

Elisp

Add demos to describe-function

(use-package elisp-demos
  :config
  (advice-add 'describe-function-1 :after #'elisp-demos-advice-describe-function-1)
  )

Custom

Sudo current buffer

(defun myrmi/sudo-current-buffer ()
  "Use TRAMP to `sudo' the current buffer."
  (interactive)
  (when buffer-file-name
    (find-alternate-file
      (concat "/sudo:root@localhost:"
        buffer-file-name)
    )
  )
)

Save symbol at point

(defun myrmi/save-symbol-at-point ()
  "Make symbol at point the latest kill in the kill ring."
  (interactive)
  (let ((symbol (thing-at-point 'symbol)))
    (when symbol (kill-new symbol))))

(global-set-key (kbd "C-M-w") 'myrmi/save-symbol-at-point)

Ceedling

(defvar ceedling-project-file-name "project.yml")
(defvar ceedling-cmd "ceedling")
(defvar ceedling-project-root ".")

(defun myrmi/run-ceedling-tests (&optional file-name)
  (interactive)
  (let* (
          (file-path (or file-name buffer-file-name))
          (root-path (or (locate-dominating-file file-path ceedling-project-file-name) ceedling-project-root))
        )
    (compile
     (concat "cd " root-path " && " ceedling-cmd)
     )
    )
  )

Set path to shell path

(defun set-exec-path-from-shell-PATH ()
  (let ((path-from-shell
	   (replace-regexp-in-string "[[:space:]\n]*$" ""
	  (shell-command-to-string "$SHELL -l -c 'echo $PATH'"))))
    (setenv "PATH" path-from-shell)
    (setq exec-path (split-string path-from-shell path-separator))))

(set-exec-path-from-shell-PATH)

Reload dir-locals.el

(defun myrmi/reload-dir-locals-for-current-buffer ()
  "Reload dir locals for the current buffer"
  (interactive)
  (let ((enable-local-variables :all))
    (hack-dir-local-variables-non-file-buffer)))

(defun myrmi/reload-dir-locals-for-all-buffers-in-this-directory ()
  "For every buffer with the same `default-directory` as the
   current buffer, reload dir-locals."
  (interactive)
  (let ((dir default-directory))
    (dolist (buffer (buffer-list))
      (with-current-buffer buffer
        (when (equal default-directory dir)
          (myrmi/reload-dir-locals-for-current-buffer))))))

Visit/reload config

These snippets assume my-config-file variable is set outside this configuration. This should normally be done by the init.el to load this configuration.

(defun myrmi/visit-config ()
  "Reloads ~/.emacs.d/config.org at runtime"
  (interactive)
  (find-file my-config-file))

(defun myrmi/reload-config ()
  "Reloads ~/.emacs.d/config.org at runtime"
  (interactive)
  (org-babel-load-file my-config-file))

Tips and Tricks

Cheat-sheet

KeyExplanation
C-h k <key-sequence>Lookup key sequencesmartparens wrapping
C-q <key>Insert <key> quoted/explicitly. F.e. to insert a tab, …
M-x untabify/tabifyConvert to spaces/tabs
M-x describe-bindingsList all mapped keys/commands
M-qFill paragraph