dotfiles/org/config/emacs.org

# -*- org-confirm-babel-evaluate: nil  -*-
#+title: Vanilla Emacs Configuration
#+setupfile: ~/org/config/headers
#+options: auto-id:t
#+html_head: <meta name="description" content="Phundrak’s Emacs Configuration" />
#+html_head: <meta property="og:title" content="Phundrak’s Emacs Configuration" />
#+html_head: <meta property="og:description" content="Phundrak’s Emacs Configuration Detailed" />
#+property: header-args:emacs-lisp  :mkdirp yes :lexical t :exports code
#+property: header-args:emacs-lisp+ :results silent :tangle ~/.emacs.vanilla/init.el
#+property: header-args:emacs-lisp+ :mkdirp yes :noweb yes

* Introduction
#+begin_center
*STOP* Read this first!

You just landed on my vanilla Emacs configuration. However, this URL
was used until recently for my Spacemacs configuration. If you want my
complete, working Emacs configuration, I recommend you to head over
there. /*This document is still a work in progress!*/
#+end_center

After a couple of years using Spacemacs and a failed attempt at
switching to DoomEmacs, I’m finally switching back to a vanilla
configuration! Be aware though this document is still very much a work
in progress document, lots of comments on existing configuration are
missing, and lots of functionnalities are still not implemented. I’m
still in the process of porting my [[file:spacemacs.org][Spacemacs]] configuration over here.

* Basic configuration
#+begin_src emacs-lisp
  (setq visible-bell t)

  (setq-default initial-major-mode 'emacs-lisp-mode)

  (setq display-time-format "%Y-%m-%d %H:%M")
  (display-time-mode 1) ; display time in modeline

  ;; Display battery in modeline when using a laptop
  (unless (equal "Battery status not available"
                 (battery))
    (display-battery-mode 1))



  (setq frame-title-format
        '(""
          "%b"
          (:eval
           (let ((project-name (projectile-project-name)))
             (unless (string= "-" project-name)
               (format (if (buffer-modified-p) " ◉ %s" "  ●  %s") project-name))))))

  ;; Make ESC quit prompts
  (global-set-key (kbd "<escape>") 'keyboard-escape-quit)

  ;; Answer with y or n, not yes or not
  (defalias 'yes-or-no-p 'y-or-n-p)

  (column-number-mode)
  (global-display-line-numbers-mode t)
  ;; Disable line numbers for some modes
  (dolist (mode '(org-mode-hook
                  comint-mode
                  term-mode-hook
                  shell-mode-hook
                  eshell-mode-hook
                  vterm-mode-hook
                  special-mode-hook
                  helpful-mode-hook
                  woman-mode-hook))
    (add-hook mode (lambda () (display-line-numbers-mode 0))))

  (setq x-stretch-cursor          t         ; stretch cursor to the glyph’s width
        delete-by-moving-to-trash t         ; delete files to trash
        window-combination-resize t         ; take new window space from all other windows
        undo-limit                100000000 ; raise undo limit to 100Mb
        auto-save-default         t
        truncate-string-ellipsis  "…")

  (global-subword-mode 1)
  ;; (electric-indent-mode -1)

  (setq-default major-mode 'org-mode)

  (defun modeline-contitional-buffer-encoding ()
    "Hide \"LF UTF-8\" in modeline.

  It is expected of files to be encoded with LF UTF-8, so only show
  the encoding in the modeline if the encoding is worth notifying
  the user."
    (setq-local doom-modeline-buffer-encoding
                (unless (and (memq (plist-get (coding-system-plist buffer-file-coding-system) :category)
                                   '(coding-category-undecided coding-category-utf-8))
                             (not (memq (coding-system-eol-type buffer-file-coding-system) '(1 2))))
                  t)))

  (add-hook 'after-change-major-mode-hook #'modeline-contitional-buffer-encoding)
  (add-hook 'prog-mode-hook #'hs-minor-mode)
  (with-eval-after-load 'org
    (add-hook 'org-mode-hook (lambda ()
                               (interactive)
                               (electric-indent-local-mode -1))))
#+end_src

** Early init
The early init file is the file loaded before anything else in
Emacs. This is where I put some options in order to disable as quickly
as possible some built-in features of Emacs before they can be even
loaded, speeding Emacs up a bit.
#+begin_src emacs-lisp :mkdirp yes :tangle ~/.emacs.vanilla/early-init.el :exports code :results silent :lexical t
  (setq package-enable-at-startup nil
        inhibit-startup-message   t
        frame-resize-pixelwise    t  ; fine resize
        package-native-compile    t) ; native compile packages
  (scroll-bar-mode -1)               ; disable scrollbar
  (tool-bar-mode -1)                 ; disable toolbar
  (tooltip-mode -1)                  ; disable tooltips
  (set-fringe-mode 10)               ; give some breathing room
  (menu-bar-mode -1)                 ; disable menubar
#+end_src

** Personal information
Emacs needs to know its master! For various reasons by the way, some
packages rely of these variables to know who it is talking to or
dealing with, such as ~mu4e~ which will guess who you are if you haven’t
set it up correctly.
#+begin_src emacs-lisp
  (setq user-full-name       "Lucien Cartier-Tilet"
        user-real-login-name "Lucien Cartier-Tilet"
        user-login-name      "phundrak"
        user-mail-address    "lucien@phundrak.com")
#+end_src

** Stay clean, Emacs!
As nice as Emacs is, it isn’t very polite or clean by default: open a
file, and it will create backup files in the same directory. But then,
when you open your directory with your favorite file manager and see
almost all of your files duplicated with a =~= appended to the filename,
it looks really uncomfortable! This is why I prefer to tell Emacs to
keep its backup files to itself in a directory it only will acces.
#+begin_src emacs-lisp
  (setq backup-directory-alist `(("." . ,(expand-file-name ".temp/backups/" user-emacs-directory))))
#+end_src

It also loves to litter its ~init.el~ with custom variables here and
there, but the thing is: I regenerate my ~init.el~ each time I tangle
this file! How can I keep Emacs from adding stuff that will be almost
immediately lost? Did someone say /custom file/?
#+begin_src emacs-lisp
  (setq-default custom-file (expand-file-name ".custom.el" user-emacs-directory))
  (when (file-exists-p custom-file) ; Don’t forget to load it, we still need it
    (load custom-file))
#+end_src

Finally, the scatch buffer always has some message at its beginning, I
don’t want it!
#+begin_src emacs-lisp
  (setq-default initial-scratch-message nil)
#+end_src

** Editing text in Emacs
I don’t like tabs. They rarely look good, and if I need it I can
almost always tell Emacs to use them through a ~.dir-locals.el~ file or
through the config file of my code formatter. So by default, let’s
disable them:
#+begin_src emacs-lisp
  (setq-default indent-tabs-mode nil)
  (add-hook 'prog-mode-hook (lambda () (setq indent-tabs-mode nil)))
#+end_src

Just to go on a little tangeant here: I don’t exactly /hate/ tabs, but I
find them really annoying when your text editor knows only them. Sure,
for indentation they work great and they allow different people
getting different settings in their text editor depending on their
preferred tastes —some may prefer 2 spaces tabs, some may prefer 4
spaces tabs, some deranged people prefer 8 spaces tabs, and some
monsters prefer 3!

But the thing is, once you indented your code and then you need
alignment, tabs don’t work anymore! Or they may on *your* text editor
but not on your coworker’s! (He’s the one using 3 spaces tabs by the
way).

So, is the answer to use spaces instead of tabs, and screw peoples’
preferences in terms of tabs width? No, I say the answer is more
moderate than that, and it might frighten or anger some of you at
first: use both spaces and tabs. Now, before you lynch me on the main
avenue in front of everyone, let me tell you absolutely no one should
ever be mixing spaces and tabs for indentation, that would be
absolutely terrible and would bring the worst of both worlds. What’s
the best of both worlds then?
#+begin_center
/Tabs for indentation/

/Spaces for alignment/
#+end_center

I haven’t found a way to automate that in Emacs yet aside from
formatters’ config file, and tabs look bat in EmacsLisp anyways, so
I’ll stick with spaces by default and change it where needed.

I *never* want to keep trailing spaces in my files, which is why I’m
doing this:
#+begin_src emacs-lisp
  (add-hook 'before-save-hook #'whitespace-cleanup)
#+end_src

** Fonts
I don’t like the default font I usually have on my machines, I really don’t.

#+begin_src emacs-lisp
  (defvar phundrak/default-font-size 90
    "Default font size.")
#+end_src

#+begin_src emacs-lisp
  (when (equal system-type 'gnu/linux)
    (set-face-attribute 'default nil :font "Cascadia Code" :height phundrak/default-font-size))
#+end_src

** Nice macros from Doom-Emacs
Doom-Emacs has some really nice macros that can come in really handy,
but since I prefer to rely on my own configuration, I’ll instead just
copy their code here. First we get the ~after!~ macro:
#+begin_src emacs-lisp
  (defmacro after! (package &rest body)
    "Evaluate BODY after PACKAGE have loaded.

  PACKAGE is a symbol or list of them. These are package names, not modes,
  functions or variables. It can be:

  - An unquoted package symbol (the name of a package)
      (after! helm BODY...)
  - An unquoted list of package symbols (i.e. BODY is evaluated once both magit
    and git-gutter have loaded)
      (after! (magit git-gutter) BODY...)
  - An unquoted, nested list of compound package lists, using any combination of
    :or/:any and :and/:all
      (after! (:or package-a package-b ...)  BODY...)
      (after! (:and package-a package-b ...) BODY...)
      (after! (:and package-a (:or package-b package-c) ...) BODY...)
    Without :or/:any/:and/:all, :and/:all are implied.

  This is a wrapper around `eval-after-load' that:

  1. Suppresses warnings for disabled packages at compile-time
  2. Supports compound package statements (see below)
  3. Prevents eager expansion pulling in autoloaded macros all at once"
    (declare (indent defun) (debug t))
    (if (symbolp package)
        (list (if (or (not (bound-and-true-p byte-compile-current-file))
                      (require package nil 'noerror))
                  #'progn
                #'with-no-warnings)
              ;; We intentionally avoid `with-eval-after-load' to prevent eager
              ;; macro expansion from pulling (or failing to pull) in autoloaded
              ;; macros/packages.
              `(eval-after-load ',package ',(macroexp-progn body)))
      (let ((p (car package)))
        (cond ((not (keywordp p))
               `(after! (:and ,@package) ,@body))
              ((memq p '(:or :any))
               (macroexp-progn
                (cl-loop for next in (cdr package)
                         collect `(after! ,next ,@body))))
              ((memq p '(:and :all))
               (dolist (next (cdr package))
                 (setq body `((after! ,next ,@body))))
               (car body))))))
#+end_src

* Custom Elisp
#+begin_src emacs-lisp
  (defun split-window-right-and-focus ()
    (interactive)
    (split-window-right)
    (windmove-right)
    (when (and (boundp 'golden-ratio-mode)
               (symbol-value golden-ratio-mode))
      (golden-ratio)))

  (defun split-window-below-and-focus ()
    (interactive)
    (split-window-below)
    (windmove-down)
    (when (and (boundp 'golden-ratio-mode)
               (symbol-value golden-ratio-mode))
      (golden-ratio)))

  (defun ibuffer-list-buffers-and-focus ()
    (interactive)
    (ibuffer-list-buffers)
    (windmove-down)
    (when (and (boundp 'golden-ratio-mode)
               (symbol-value golden-ratio-mode))
      (golden-ratio)))
#+end_src

#+begin_src emacs-lisp
  (defun switch-to-messages-buffer ()
    "Switch to Messages buffer."
    (interactive)
    (switch-to-buffer "*Messages*"))

  (defun switch-to-scratch-buffer ()
    "Switch to Messages buffer."
    (interactive)
    (switch-to-buffer "*scratch*"))
#+end_src

| /        |    <c>    |      <c>       |
| Emphasis | Character | Character code |
|----------+-----------+----------------|
| Bold     |    ~*~    |       42       |
| Italic   |    ~/~    |       47       |
| Code     |    ~~~    |      126       |

#+begin_src emacs-lisp
  (defun org-mode-emphasize-bold ()
    "Emphasize as bold the current region.

  See also `org-emphasize'."
    (interactive)
    (org-emphasize 42))
#+end_src

#+begin_src emacs-lisp
  (defun phundrak/toggle-org-src-window-split ()
    "This function allows the user to toggle the behavior of
  `org-edit-src-code'. If the variable `org-src-window-setup' has
  the value `split-window-right', then it will be changed to
  `split-window-below'. Otherwise, it will be set back to
  `split-window-right'"
    (interactive)
    (if (equal org-src-window-setup 'split-window-right)
        (setq org-src-window-setup 'split-window-below)
      (setq org-src-window-setup 'split-window-right))
    (message "Org-src buffers will now split %s"
             (if (equal org-src-window-setup 'split-window-right)
                 "vertically"
               "horizontally")))
#+end_src

* Package Management
** Repositories
By default, only GNU’s repositories are available to the package
managers of Emacs. I also want to use Melpa and org-mode’s repository,
so let’s add them! Note that the /Elpa/ repository has been renamed to
the /gnu/ repository due to the addition of another Elpa repository,
/nongnu/, which will hosts packages that do not conform to the FSF’s
copyright assignment. Both the /gnu/ and the /nonfree/ repositories are
Elpa repositories now, and they were renamed in order to avoid any
confusion between the two of them.
#+begin_src emacs-lisp
  (setq package-archives '(("melpa"  . "https://melpa.org/packages/")
                           ("org"    . "https://orgmode.org/elpa/")
                           ("gnu"    . "https://elpa.gnu.org/packages/")
                           ("nongnu" . "https://elpa.nongnu.org/nongnu/")))
#+end_src

** Straight
For my package management, I prefer to use ~straight~ ([[https://github.com/raxod502/straight.el][Github]]). This is
due to its capacity of integrating nicely with ~use-package~, which is
also supported by ~general~ which I use for my keybindings (see below),
but also because with it I can specify where to retrieve packages that
are not on MELPA or ELPA but on Github and other online Git
repositories too.
#+begin_src emacs-lisp

  (defvar bootstrap-version)
  (defvar comp-deferred-compilation-deny-list ()) ; workaround, otherwise straight shits itself
  (let ((bootstrap-file
         (expand-file-name "straight/repos/straight.el/bootstrap.el" user-emacs-directory))
        (bootstrap-version 5))
    (unless (file-exists-p bootstrap-file)
      (with-current-buffer
          (url-retrieve-synchronously
           "https://raw.githubusercontent.com/raxod502/straight.el/develop/install.el"
           'silent 'inhibit-cookies)
        (goto-char (point-max))
        (eval-print-last-sexp)))
    (load bootstrap-file nil 'nomessage))

  (package-initialize)
  (unless package-archive-contents
    (package-refresh-contents))

  ;; Initialize use-package on non-Linux platforms
  (unless (package-installed-p 'use-package)
    (package-install 'use-package))

  (require 'use-package)
  (setq use-package-always-ensure t)
#+end_src

* Keybinding Management
** Which-key
#+begin_src emacs-lisp
  (use-package which-key
    :straight (:build t)
    :defer t
    :init (which-key-mode)
    :diminish which-key-mode
    :config
    (setq which-key-idle-delay 0.3))
#+end_src

** General
#+begin_src emacs-lisp
  (use-package general
    :straight (:build t)
    :init
    (general-auto-unbind-keys))
#+end_src

** Evil
#+begin_src emacs-lisp
  (use-package evil
    :straight (:build t)
    :init
    (setq evil-want-integration t)
    (setq evil-want-keybinding nil)
    (setq evil-want-C-u-scroll t)
    (setq evil-want-C-i-jump nil)
    :config
    (evil-mode 1)
    (setq evil-want-fine-undo t) ; more granular undo with evil
    (setq evil-undo-system 'undo-tree)
    (evil-set-initial-state 'messages-buffer-mode 'normal)
    (evil-set-initial-state 'dashboard-mode 'normal)

    ;; Use visual line motions even outside of visual-line-mode buffers
    (evil-global-set-key 'motion "t" 'evil-next-visual-line)
    (evil-global-set-key 'motion "s" 'evil-previous-visual-line)

    (define-key evil-normal-state-map "c" nil)
    (define-key evil-normal-state-map "C" nil)
    (define-key evil-normal-state-map "t" nil)
    (define-key evil-normal-state-map "T" nil)
    (define-key evil-normal-state-map "s" nil)
    (define-key evil-normal-state-map "S" nil)
    (define-key evil-normal-state-map "r" nil)
    (define-key evil-normal-state-map "R" nil)
    (define-key evil-normal-state-map "h" nil)
    (define-key evil-normal-state-map "H" nil)
    (define-key evil-normal-state-map "j" nil)
    (define-key evil-normal-state-map "J" nil)
    (define-key evil-normal-state-map "k" nil)
    (define-key evil-normal-state-map "K" nil)
    (define-key evil-normal-state-map "l" nil)
    (define-key evil-normal-state-map "L" nil)

    (define-key evil-motion-state-map "h" 'evil-replace)
    (define-key evil-motion-state-map "H" 'evil-replace-state)
    (define-key evil-motion-state-map "j" 'evil-find-char-to)
    (define-key evil-motion-state-map "J" 'evil-find-char-to-backward)
    (define-key evil-motion-state-map "k" 'evil-substitute)
    (define-key evil-motion-state-map "K" 'evil-smart-doc-lookup)
    (define-key evil-motion-state-map "l" 'evil-change)
    (define-key evil-motion-state-map "L" 'evil-change-line)

    (define-key evil-motion-state-map "c" 'evil-backward-char)
    (define-key evil-motion-state-map "C" 'evil-window-top)
    (define-key evil-motion-state-map "t" 'evil-next-line)
    (define-key evil-motion-state-map "T" 'evil-join)
    (define-key evil-motion-state-map "s" 'evil-previous-line)
    (define-key evil-motion-state-map "S" 'evil-lookup)
    (define-key evil-motion-state-map "r" 'evil-forward-char)
    (define-key evil-motion-state-map "R" 'evil-window-bottom)
    )

  (use-package evil-collection
    :after evil
    :straight (:build t)
    :config
    (evil-collection-init))
#+end_src

#+begin_src emacs-lisp
  (use-package undo-tree
    :straight (:build t)
    :init
    (global-undo-tree-mode))
#+end_src

** Hydra
#+begin_src emacs-lisp
  (use-package hydra
    :straight (:build t)
    :defer t)
#+end_src

*** Hydras
The following hydra allows me to quickly zoom in and out in the
current buffer.
#+begin_src emacs-lisp
  (defhydra hydra-zoom ()
    "Zoom current buffer."
    ("t" text-scale-increase "zoom in")
    ("s" text-scale-decrease "zoom out")
    ("0" text-scale-adjust "reset")
    ("q" nil "finished" :exit t))
#+end_src

This one allows me to quickly navigate between code blocks and
interact with them. This code block was inspired by one you can find
in Spacemacs.
#+begin_src emacs-lisp
  (defhydra org-babel-transient ()
    "
  ^Navigate^                    ^Interact
  ^^^^^^^^^^^------------------------------------------
  [_t_/_s_] navigate src blocs  [_x_] execute src block
  [_g_]^^   goto named block    [_'_] edit src block
  [_z_]^^   recenter screen     [_q_] quit
  "
    ("q" nil :exit t)
    ("t" org-babel-next-src-block)
    ("s" org-babel-previous-src-block)
    ("g" org-babel-goto-named-src-block)
    ("z" recenter-top-bottom)
    ("x" org-babel-execute-maybe)
    ("'" org-edit-special :exit t))
#+end_src

Similarly, this one is also inspired from Spacemacs and allows the
user to interact with the width of the buffer in ~writeroom~.
#+begin_src emacs-lisp
  (defhydra writeroom-buffer-width ()
    "Change the width of a `writeroom-mode' buffer."
    ("q" nil :exit t)
    ("t" writeroom-increase-width "enlarge")
    ("s" writeroom-decrease-width "shrink")
    ("r" writeroom-adjust-width   "adjust"))
#+end_src

Another similar one is for ~mu4e-view-mode~ that allows me to shrink or
grow the ~mu4e-headers~ buffer when viewing an email.
#+begin_src emacs-lisp
  (defhydra mu4e-headers-split-adjust-width ()
    "Change the width of a `mu4e-headers' buffer."
    ("q" nil :exit t)
    ("t" mu4e-headers-split-view-shrink "shrink")
    ("s" mu4e-headers-split-view-grow "enlarge"))
#+end_src

* Packages Configuration
** Applications
*** Docker
#+begin_src emacs-lisp
  (use-package docker
    :defer t
    :straight (:build t))
#+end_src

#+begin_src emacs-lisp
  (use-package dockerfile-mode
    :defer t
    :straight (:build t)
    :init
    (put 'docker-image-name 'safe-local-variable #'stringp)
    :mode "Dockerfile\\'")
#+end_src

*** Elfeed
*** Email - Mu4e
#+begin_src emacs-lisp
  (setq message-signature nil
        mail-signature    nil)
#+end_src

#+begin_src emacs-lisp
  (use-package mu4e
    :after all-the-icons
    :straight (:build t :location site)
    :commands mu4e mu4e-compose-new
    :bind (("C-x m" . mu4e-compose-new))
    :init
    (progn
      (setq mu4e-completing-read-function 'completing-read
            mu4e-use-fancy-chars          t
            mu4e-view-show-images         t
            message-kill-buffer-on-exit   t
            mu4e-org-support              nil)
      (let ((dir "~/Downloads/mu4e"))
        (when (file-directory-p dir)
          (setq mu4e-attachment-dir dir))))

    :config
    (progn
      <<mu4e-keybindings>>
      (setq mu4e-compose-signature nil)

      (when (fboundp 'imagemagick-register-types)
        (imagemagick-register-types))

      (add-to-list 'mu4e-view-actions
                   '("View in browser" . mu4e-action-view-in-browser) t)

      (require 'gnus-dired)
      (setq gnus-dired-mail-mode 'mu4e-user-agent)

      (add-hook 'mu4e-compose-mode-hook
                (lambda () (use-hard-newlines t 'guess)))
      (add-hook 'dired-mode-hook 'turn-on-gnus-dired-mode)
      (add-hook 'mu4e-compose-mode-hook 'mml-secure-message-sign-pgpmime)

      (setq mu4e-get-mail-command         "mbsync -a"
            mu4e-maildir                  "~/.mail"
            mu4e-trash-folder             "/Trash"
            mu4e-refile-folder            "/Archive"
            mu4e-sent-folder              "/Sent"
            mu4e-drafts-folder            "/Drafts"
            mu4e-update-interval          60
            mu4e-compose-format-flowed    t
            mu4e-view-show-addresses      t
            mu4e-sent-messages-behaviour  'sent
            mu4e-hide-index-messages      t
            ;; try to show images
            mu4e-view-show-images         t
            mu4e-view-image-max-width     600
            ;; configuration for sending mail
            message-send-mail-function    #'smtpmail-send-it
            smtpmail-stream-type          'starttls
            message-kill-buffer-on-exit   t                  ; close after sending
            ;; start with the first (default) context
            mu4e-context-policy           'pick-first
            ;; compose with the current context, or ask
            mu4e-compose-context-policy   'ask-if-none
            ;; use ivy
            mu4e-completing-read-function #'ivy-completing-read
            ;; no need to ask
            mu4e-confirm-quit             t


            mu4e-header-fields
            '((:account    . 12)
              (:human-date . 12)
              (:flags      . 4)
              (:from       . 25)
              (:subject)))

      ;; set mail user agent
      (setq mail-user-agent 'mu4e-user-agent)

      ;; Use fancy icons
      (setq mu4e-use-fancy-chars     t
            mu4e-headers-draft-mark     `("D" . ,(all-the-icons-faicon "pencil":height 0.8))
            mu4e-headers-flagged-mark   `("F" . ,(all-the-icons-faicon "flag":height 0.8))
            mu4e-headers-new-mark       `("N" . ,(all-the-icons-faicon "rss":height 0.8))
            mu4e-headers-passed-mark    `("P" . ,(all-the-icons-faicon "check":height 0.8))
            mu4e-headers-replied-mark   `("R" . ,(all-the-icons-faicon "reply":height 0.8))
            mu4e-headers-seen-mark      `("S" . ,(all-the-icons-faicon "eye":height 0.8))
            mu4e-headers-unread-mark    `("u" . ,(all-the-icons-faicon "eye-slash":height 0.8))
            mu4e-headers-trashed-mark   `("T" . ,(all-the-icons-faicon "trash":height 0.8))
            mu4e-headers-attach-mark    `("a" . ,(all-the-icons-faicon "paperclip":height 0.8))
            mu4e-headers-encrypted-mark `("x" . ,(all-the-icons-faicon "lock":height 0.8))
            mu4e-headers-signed-mark    `("s" . ,(all-the-icons-faicon "certificate":height 0.8)))

      (setq mu4e-bookmarks
            `((,(s-join " "
                        '("NOT flag:trashed"
                          "AND (maildir:/Inbox OR maildir:/Junk)"
                          "AND NOT to:CONLANG@LISTSERV.BROWN.EDU"
                          "AND NOT to:AUXLANG@LISTSERV.BROWN.EDU"
                          "AND NOT to:ateliers-emacs@framalistes.org"
                          "AND NOT to:ateliers-paris@emacs-doctor.com"
                          "AND NOT list:ateliers-emacs.framalistes.org"
                          "AND NOT list:ateliers-paris.emacs-doctor.com"))
               "Inbox" ?i) ;; Inbox without the linguistics mailing lists
              (,(s-join " "
                        '("NOT flag:trashed"
                          "AND (maildir:/Inbox OR maildir:/Junk)"
                          "AND (f:/.*up8\.edu|.*univ-paris8.*/"
                          "OR c:/.*up8\.edu|.*univ-paris8.*/"
                          "OR t:/.*up8\.edu|.*univ-paris8.*/)"))
               "University" ?u) ;; University-related emails
              (,(s-join " "
                        '("to:CONLANG@LISTSERV.BROWN.EDU"
                          "OR to:AUXLANG@LISTSERV.BROWN.EDU"))
               "Linguistics" ?l) ;; linguistics mailing lists
              (,(s-join " "
                        '("list:ateliers-emacs.framalistes.org"
                          "OR to:ateliers-paris@emacs-doctor.com"
                          "OR list:ateliers-paris.emacs-doctor.com"))
               "Emacs" ?e) ;; Emacs mailing list
              ("maildir:/Sent" "Sent messages" ?s)
              ("flag:unread AND NOT flag:trashed" "Unread messages" ?U)
              ("date:today..now AND NOT flag:trashed" "Today's messages" ?t)
              ("date:7d..now AND NOT flag:trashed" "Last 7 days" ?w)
              ("date:1m..now AND NOT flag:trashed" "Last month" ?m)
              ("date:1y..now AND NOT flag:trashed" "Last year" ?y)
              ("flag:trashed AND NOT flag:trashed" "Trash" ?T)
              ("mime:image/* AND NOT flag:trashed" "Messages with images" ?p)))

      ;; Add a column to display what email account the email belongs to.
      (add-to-list 'mu4e-header-info-custom
                   '(:account
                     :name "Account"
                     :shortname "Account"
                     :help "Which account this email belongs to"
                     :function
                     (lambda (msg)
                       (let ((maildir (mu4e-message-field msg :maildir)))
                         (format "%s" (substring maildir 1 (string-match-p "/" maildir 1)))))))

      (setq smtpmail-smtp-server       "mail.phundrak.com"
            smtpmail-smtp-service      587
            smtpmail-stream-type       'starttls
            message-send-mail-function 'smtpmail-send-it)

      (defun mu4e-action-open-as-pdf (msg)
        "Export and open MSG as pdf."
        (let* ((date    (mu4e-message-field msg :date))
               (infile  (mu4e~write-body-to-html msg))
               (outfile (format-time-string "/tmp/%Y-%m-%d-%H-%M-%S.pdf" date)))
          (with-temp-buffer
            (shell-command
             (format "wkhtmltopdf %s %s" infile outfile) t))
          (find-file outfile)))

      (add-to-list 'mu4e-view-actions '("PDF view" . mu4e-action-open-as-pdf) t)))
#+end_src

#+name: mu4e-keybindings
#+begin_src emacs-lisp :tangle no
  ;; Unbinding some stuff
  (general-define-key
   :keymaps '(mu4e-headers-mode-map mu4e-view-mode-map)
   "s" nil)
  (general-define-key
   :states 'normal
   :keymaps '(mu4e-headers-mode-map mu4e-view-mode-map)
   "s" nil)
  (general-define-key
   :keymaps 'mu4e-view-mode-map
   "SPC" nil
   "S"   nil
   "r"   nil
   "c"   nil)

  (general-define-key
   :keymaps 'mu4e-view-mode-map
   :states 'normal
   "SPC" nil
   "S"   nil
   "r"   nil
   "c"   nil
   "gu"  nil)

  ;; View
  (general-define-key
   :keymaps 'mu4e-view-mode-map
   :states 'normal
   )

  (general-define-key
   :states 'motion
   :keymaps 'mu4e-view-mode-map
   :prefix ","
   "|"  #'mu4e-view-pipe
   "."  '(mu4e-headers-split-adjust-width/body :wk "mu4e-headers width")

   "a"  '(nil :wk "attachments")
   "a|" #'mu4e-view-pipe-attachment
   "aa" #'mu4e-view-attachment-action
   "ao" #'mu4e-view-open-attachment
   "aO" #'mu4e-view-open-attachment-with

   "c"  '(nil :wk "compose")
   "cc" #'mu4e-compose-new
   "ce" #'mu4e-compose-edit
   "cf" #'mu4e-compose-forward
   "cr" #'mu4e-compose-reply
   "cR" #'mu4e-compose-resend

   "g"  '(nil :wk "go to")
   "gu" #'mu4e-view-go-to-url
   "gX" #'mu4e-view-fetch-url

   "l"  #'mu4e-show-log

   "m"  '(nil :wk "mark")
   "md" #'mu4e-view-mark-for-trash
   "mD" #'mu4e-view-mark-for-delete
   "mm" #'mu4e-view-mark-for-move
   "mr" #'mu4e-view-mark-for-refile
   "mR" #'mu4e-view-mark-for-read
   "mu" #'mu4e-view-mark-for-unread
   "mU" #'mu4e-view-mark-for-unmark

   "t"  '(nil :wk "thread")
   "td" '((lambda ()
            (interactive)
            (mu4e-view-mark-thread '(trash)))
          :wk "Mark as trash")
   "tD" '((lambda ()
            (interactive)
            (mu4e-view-mark-thread '(delete)))
          :wk "Mark as delete")
   "tm" '((lambda ()
            (interactive)
            (mu4e-view-mark-thread '(move)))
          :wk "Mark as move")
   "tr" '((lambda ()
            (interactive)
            (mu4e-view-mark-thread '(refile)))
          :wk "Mark as refile")
   "tR" '((lambda ()
            (interactive)
            (mu4e-view-mark-thread '(read)))
          :wk "Mark as read")
   "tu" '((lambda ()
            (interactive)
            (mu4e-view-mark-thread '(unread)))
          :wk "Mark as unread")
   "tU" '((lambda ()
            (interactive)
            (mu4e-view-mark-thread '(unmark)))
          :wk "Mark as unmark")

   "T"  '(nil :wk "toggle")
   "Tc" #'mu4e-view-toggle-hide-cited
   "Th" #'mu4e-view-toggle-html


   "n"  #'mu4e-view-headers-next
   "N"  #'mu4e-view-headers-next-unread
   "p"  #'mu4e-view-headers-prev
   "P"  #'mu4e-view-headers-prev-unread)

  ;; Headers
  (general-define-key
   :prefix ","
   :keymaps 'mu4e-headers-mode-map
   :states 'normal
   "s"  '(nil :wk "search")
   "ss" #'swiper)

  (general-define-key
   :keymaps 'mu4e-headers-mode-map
   :states 'motion
   "t"   #'evil-next-line
   "s"   #'evil-previous-line
   "T"   '((lambda ()
             (interactive)
             (mu4e-headers-mark-thread nil '(read)))
           :wk "Mark as read"))

  ;; Message
  (general-define-key
   :states 'normal
   :keymaps 'message-mode-map
   :prefix ","
   "," #'message-send-and-exit
   "c" #'message-send-and-exit
   "a" #'message-kill-buffer
   "k" #'message-kill-buffer
   "s" #'message-dont-send
   "f" #'mml-attach-file)
#+end_src

#+begin_src emacs-lisp
  (use-package org-msg
    :after (org mu4e)
    :straight (:build t)
    :hook (mu4e-compose-pre . org-msg-mode)
    :general (:keymaps 'org-msg-edit-mode-map
              :prefix ","
              :states 'normal
              "," #'message-send-and-exit
              "c" #'message-send-and-exit
              "a" #'message-kill-buffer
              "k" #'message-kill-buffer
              "s" #'message-dont-send
              "f" #'org-msg-attach)

    :config
    (progn
      (defun my/org-msg-signature-convert (orig-fun &rest args)
        "Tweak my signature when replying as plain/text only."
        (let ((res (apply orig-fun args)))
          (when (equal (cadr args) '(text))
            (setf (alist-get 'signature res)
                  (replace-regexp-in-string "\n+" "\n" org-msg-signature)))
          res))
      (advice-add 'org-msg-composition-parameters
                  :around 'my/org-msg-signature-convert)

      (setq org-msg-startup              "inlineimages"
            org-msg-default-alternatives '((new           . (text html))
                                           (reply-to-html . (text html))
                                           (reply-to-text . (text)))
            org-msg-convert-citation     t
            org-msg-greeting-name-limit  3
            org-msg-signature            (format "\n--\n#+begin_signature\n%s\n#+end_signature"
                                                 (with-temp-buffer
                                                   (insert-file-contents mail-signature-file)
                                                   (buffer-string))))))
#+end_src

#+begin_src emacs-lisp
  (use-package mu4e-alert
    :straight (:build t)
    :after mu4e)
#+end_src

*** PDF Tools
#+begin_src emacs-lisp
  (use-package pdf-tools
    :defer t
    :magic ("%PDF" . pdf-view-mode)
    :straight (:build t)
    :mode (("\\.pdf\\'" . pdf-view-mode))
    :config
    (progn
      (with-eval-after-load 'pdf-view
        (setq pdf-view-midnight-colors '("#d8dee9" . "#2e3440")))

      (general-define-key
       :keymaps 'pdf-view-mode-map
       "SPC" nil)
      (general-define-key
       :keymaps 'pdf-view-mode-map
       :states 'normal
       "SPC" nil)
      ;; (define-key 'pdf-view-mode-map (kbd "SPC") nil)

      (general-define-key
       :states 'normal
       :keymaps 'pdf-view-mode-map
       "y" #'pdf-view-kill-ring-save
       "t" #'evil-collection-pdf-view-next-line-or-next-page
       "s" #'evil-collection-pdf-view-previous-line-or-previous-page))

      (general-define-key
       :states 'motion
       :keymaps 'pdf-view-mode-map
       :prefix "SPC"
        "a"  '(nil :which-key "annotations")
        "aD" #'pdf-annot-delete
        "at" #'pdf-annot-attachment-dired
        "ah" #'pdf-annot-add-highlight-markup-annotation
        "al" #'pdf-annot-list-annotations
        "am" #'pdf-annot-markup-annotation
        "ao" #'pdf-annot-add-strikeout-markup-annotation
        "as" #'pdf-annot-add-squiggly-markup-annotation
        "at" #'pdf-annot-add-text-annotation
        "au" #'pdf-annot-add-underline-markup-annotation

        "f"  '(nil :which-key "fit")
        "fw" #'pdf-view-fit-width-to-window
        "fh" #'pdf-view-fit-height-to-window
        "fp" #'pdf-view-fit-page-to-window

        "s"  '(nil :which-key "slice/search")
        "sb" #'pdf-view-set-slice-from-bounding-box
        "sm" #'pdf-view-set-slice-using-mouse
        "sr" #'pdf-view-reset-slice
        "ss" #'pdf-occur

        "o"  'pdf-outline
        "m"  'pdf-view-midnight-minor-mode)

    :hook
    (pdf-tools-enabled . pdf-view-midnight-minor-mode))
#+end_src

*** Screenshot
#+begin_src emacs-lisp
  (use-package screenshot
    :defer t
    :straight (screenshot :build t
                          :type git
                          :host github
                          :repo "tecosaur/screenshot"))
#+end_src

*** Shells
**** Shell-pop
Shell-pop allows the user to easily call for a new shell in a pop-up
buffer.
#+begin_src emacs-lisp
  (use-package shell-pop
    :defer t
    :straight (:build t)
    :custom
    (shell-pop-default-directory "/home/phundrak")
    (shell-pop-shell-type (quote ("eshell" "*eshell*" (lambda nil (eshell shell-pop-term-shell)))))
    (shell-pop-window-size 30)
    (shell-pop-full-span nil)
    (shell-pop-window-position "bottom")
    (shell-pop-autocd-to-working-dir t)
    (shell-pop-restore-window-configuration t)
    (shell-pop-cleanup-buffer-at-process-exit t))
#+end_src

**** VTerm
#+begin_src emacs-lisp
  (use-package vterm
    :defer t
    :straight t)
#+end_src

*** Webkit browser
#+begin_src emacs-lisp
  (general-define-key
   :keymaps 'xwidget-webkit-mode-map
   :states 'normal
   "c" #'xwidget-webkit-scroll-backward
   "t" #'xwidget-webkit-scroll-up
   "s" #'xwidget-webkit-scroll-down
   "r" #'xwidget-webkit-scroll-forward
   "h" #'xwidget-webkit-goto-history
   "j" nil
   "k" nil
   "l" nil

   "H" nil
   "L" nil
   "T" #'xwidget-webkit-back
   "S" #'xwidget-webkit-forward
   "R" #'xwidget-webkit-reload)
#+end_src

*** Wttr.in
#+begin_src emacs-lisp
  (use-package wttrin
    :defer t
    :straight (wttrin :build t
                      :type git
                      ;; :host github
                      ;; :repo "Phundrak/emacs-wttrin"
                      :local-repo "~/fromGIT/emacs-packages/emacs-wttrin"
                      )
    :config
    (setq wttrin-default-cities '("Aubervilliers" "Paris" "Lyon" "Nonières"
                                  "Saint Agrève")
          wttrin-use-metric t))
#+end_src

**** TODO Derive a major mode for wttrin                        :noexport:
To handle keybindings correctly, a major mode for wttrin could be
derived from ~fundamental-mode~ and get an associated keymap.

** Autocompletion
*** Code Autocompletion
#+begin_src emacs-lisp
  (use-package company
    :straight (:build t)
    :defer t
    :hook (company-mode . evil-normalize-keymaps)
    :init (global-company-mode)
    :config
    (setq company-minimum-prefix-length     2
          company-toolsip-limit             14
          company-tooltip-align-annotations t
          company-require-match             'never
          company-global-modes              '(not erc-mode message-mode help-mode gud-mode)
          company-frontends
          '(company-pseudo-tooltip-frontend ; always show candidates in overlay tooltip
            company-echo-metadata-frontend) ; show selected candidate docs in echo area

          ;; Buffer-local backends will be computed when loading a major
          ;; mode, so only specify a global default here.
          company-backends '(company-capf)

          ;; These auto-complete the current selection when
          ;; `company-auto-complete-chars' is typed. This is too
          ;; magical. We already have the much more explicit RET and
          ;; TAB.
          company-auto-complete       nil
          company-auto-complete-chars nil

          ;; Only search the current buffer for `company-dabbrev' (a
          ;; backend that suggests text you open buffers). This prevents
          ;; Company from causing lag once you have a lot of buffers
          ;; open.
          company-dabbrev-other-buffers nil

          ;; Make `company-dabbrev' fully case-sensitive, to improve UX
          ;; with domai-specific words with particular casing.
          company-dabbrev-ignore-case nil
          company-dabbrev-downcase    nil))

  (use-package company-dict
    :after company
    :straight (:build t)
    :config
    (setq company-dict-dir (expand-file-name "dicts" user-emacs-directory)))

  (use-package company-box
    :straight (:build t)
    :after (company all-the-icons)
    :config
    (setq company-box-show-single-candidate t
          company-box-backends-colors       nil
          company-box-max-candidates        50
          company-box-icons-alist           'company-box-icons-all-the-icons
          company-box-icons-all-the-icons
          (let ((all-the-icons-scale-factor 0.8))
            `((Unknown       . ,(all-the-icons-material "find_in_page"             :face 'all-the-icons-purple))
              (Text          . ,(all-the-icons-material "text_fields"              :face 'all-the-icons-green))
              (Method        . ,(all-the-icons-material "functions"                :face 'all-the-icons-red))
              (Function      . ,(all-the-icons-material "functions"                :face 'all-the-icons-red))
              (Constructor   . ,(all-the-icons-material "functions"                :face 'all-the-icons-red))
              (Field         . ,(all-the-icons-material "functions"                :face 'all-the-icons-red))
              (Variable      . ,(all-the-icons-material "adjust"                   :face 'all-the-icons-blue))
              (Class         . ,(all-the-icons-material "class"                    :face 'all-the-icons-red))
              (Interface     . ,(all-the-icons-material "settings_input_component" :face 'all-the-icons-red))
              (Module        . ,(all-the-icons-material "view_module"              :face 'all-the-icons-red))
              (Property      . ,(all-the-icons-material "settings"                 :face 'all-the-icons-red))
              (Unit          . ,(all-the-icons-material "straighten"               :face 'all-the-icons-red))
              (Value         . ,(all-the-icons-material "filter_1"                 :face 'all-the-icons-red))
              (Enum          . ,(all-the-icons-material "plus_one"                 :face 'all-the-icons-red))
              (Keyword       . ,(all-the-icons-material "filter_center_focus"      :face 'all-the-icons-red))
              (Snippet       . ,(all-the-icons-material "short_text"               :face 'all-the-icons-red))
              (Color         . ,(all-the-icons-material "color_lens"               :face 'all-the-icons-red))
              (File          . ,(all-the-icons-material "insert_drive_file"        :face 'all-the-icons-red))
              (Reference     . ,(all-the-icons-material "collections_bookmark"     :face 'all-the-icons-red))
              (Folder        . ,(all-the-icons-material "folder"                   :face 'all-the-icons-red))
              (EnumMember    . ,(all-the-icons-material "people"                   :face 'all-the-icons-red))
              (Constant      . ,(all-the-icons-material "pause_circle_filled"      :face 'all-the-icons-red))
              (Struct        . ,(all-the-icons-material "streetview"               :face 'all-the-icons-red))
              (Event         . ,(all-the-icons-material "event"                    :face 'all-the-icons-red))
              (Operator      . ,(all-the-icons-material "control_point"            :face 'all-the-icons-red))
              (TypeParameter . ,(all-the-icons-material "class"                    :face 'all-the-icons-red))
              (Template      . ,(all-the-icons-material "short_text"               :face 'all-the-icons-green))
              (ElispFunction . ,(all-the-icons-material "functions"                :face 'all-the-icons-red))
              (ElispVariable . ,(all-the-icons-material "check_circle"             :face 'all-the-icons-blue))
              (ElispFeature  . ,(all-the-icons-material "stars"                    :face 'all-the-icons-orange))
              (ElispFace     . ,(all-the-icons-material "format_paint"             :face 'all-the-icons-pink))))))
#+end_src

*** Ivy
My main menu package is ~ivy~ which I use as much as possible –I’ve
noticed ~helm~ can be slow, very slow in comparison to ~ivy~ so I’ll use
the latter as much as possible. Actually, only ~ivy~ is installed for
now. I could have used ~ido~ too, but I find it to be a bit too
restricted in terms of features compared to ~ivy~.
#+begin_src emacs-lisp
  (use-package ivy
    :straight (:build t)
    :defer t
    :diminish
    :bind (("C-s" . swiper)
           :map ivy-minibuffer-map
           ("TAB" . ivy-alt-done)
           ("C-l" . ivy-alt-done)
           ("C-t" . ivy-next-line)
           ("C-s" . ivy-previous-line)
           :map ivy-switch-buffer-map
           ("C-t" . ivy-next-line)
           ("C-s" . ivy-previous-line)
           ("C-l" . ivy-done)
           ("C-d" . ivy-switch-buffer-kill)
           :map ivy-reverse-i-search-map
           ("C-t" . ivy-next-line)
           ("C-s" . ivy-previous-line)
           ("C-d" . ivy-reverse-i-search-kill))
    :config
    (ivy-mode 1)
    (setq ivy-wrap                        t
          ivy-height                      17
          ivy-fixed-height-minibuffer     t
          ivy-read-action-functions       #'ivy-hydra-read-action
          ivy-read-action-format-function #'ivy-read-action-format-columns
          projectile-completion-system    'ivy
          ivy-on-del-error-function       #'ignore
          ivy-use-selectable-prompt       t))
#+end_src

There is also [[https://github.com/raxod502/prescient.el][~prescient.el~]] that offers some nice features when
coupled with ~ivy~, guess what was born out of it? ~ivy-prescient~, of
course!
#+begin_src emacs-lisp
  (use-package ivy-prescient
    :after ivy
    :straight (:build t))
#+end_src

I warned you I’d use too much ~all-the-icons~, I did!
#+begin_src emacs-lisp
  (use-package all-the-icons-ivy
    :straight (:build t)
    :after (ivy all-the-icons)
    :hook (after-init . all-the-icons-ivy-setup))
#+end_src

A buffer popping at the bottom of the screen is nice and all, but have
you considered a floating buffer in the center of your frame?
#+begin_src emacs-lisp
  (use-package ivy-posframe
    :defer t
    :hook (ivy-mode . ivy-posframe-mode)
    :straight (ivy-posframe :build t
                            :type git
                            :host github
                            :repo "tumashu/ivy-posframe")
    :config
    (setq ivy-fixed-height-minibuffer nil
          ivy-posframe-border-width   10
          ivy-posframe-parameters
          `((min-width  . 90)
            (min-height . ,ivy-height))))
#+end_src

Finally, let’s make ~ivy~ richer:
#+begin_src emacs-lisp
  (use-package ivy-rich
    :straight (:build t)
    :after ivy
    :init
    (ivy-rich-mode 1))
#+end_src

*** Counsel
#+begin_src emacs-lisp
  (use-package counsel
    :straight (:build t)
    :defer t
    :bind (("M-x"     . counsel-M-x)
           ("C-x b"   . counsel-ibuffer)
           ("C-x C-f" . counsel-find-file)
           :map minibuffer-local-map
           ("C-r" . 'counsel-minibuffer-history)))
#+end_src

*** Yasnippet
#+begin_src emacs-lisp
  (use-package yasnippet
    :defer t
    :straight (:build t)
    :init
    (yas-global-mode))
#+end_src

#+begin_src emacs-lisp
  (use-package yasnippet-snippets
    :after yasnippet
    :straight (:build t))
#+end_src

#+begin_src emacs-lisp
  (use-package yatemplate
    :after yasnippet
    :straight (:build t))
#+end_src

#+begin_src emacs-lisp
  (use-package ivy-yasnippet
    :after (ivy yasnippet)
    :straight (:build t))
#+end_src

** Editing
*** Evil Nerd Commenter
#+begin_src emacs-lisp
  (use-package evil-nerd-commenter
    :after evil
    :straight (:build t))
#+end_src

*** string-edit
~string-edit~ is a cool package that allows the user to write naturally
a string and get it automatically escaped for you. No more manually
escaping your strings!
#+begin_src emacs-lisp
  (use-package string-edit
    :defer t
    :straight (:build t))
#+end_src

*** Writeroom
On the other hand, ~writeroom~ allows the user to enter a
distraction-free mode of Emacs, and I like that!
#+begin_src emacs-lisp
  (use-package writeroom-mode
    :defer t
    :straight (:build t))
#+end_src

** Emacs built-ins
*** Dired
#+begin_src emacs-lisp
  (setq dired-dwim-target t)
#+end_src

*** Eshell
Eshell is a built-in shell available from Emacs which I use almost as
often as fish. Some adjustments are necessary to make it fit my taste
though.
#+begin_src emacs-lisp
  (general-define-key
   :keymaps 'eshell-mode-map
   :states 'insert
   "C-a" #'eshell-bol
   "C-e" #'end-of-line)
#+end_src

**** Aliases
First, let’s declare our list of “dumb” aliases we’ll use in
Eshell. You can find them here.
#+begin_src emacs-lisp
  (setq eshell-aliases-file (expand-file-name "eshell-aliases" user-emacs-directory))
#+end_src

A couple of other aliases will be defined through custom Elisp
functions, but first I’ll need a function for concatenating a shell
command into a single string:
#+begin_src emacs-lisp
  (defun phundrak/concatenate-shell-command (&rest command)
    "Concatenate an eshell `COMMAND' into a single string.

  All elements of `COMMAND' will be joined in a single
  space-separated string."
    (string-join command " "))
#+end_src

I’ll also declare some aliases here, such as ~open~ and ~openo~ that
respectively allow me to open a file in Emacs, and same but in another
window.
#+begin_src emacs-lisp
(defalias 'open 'find-file)
(defalias 'openo 'find-file-other-window)
#+end_src

As you see, these were not declared in my dedicated aliases file but
rather were declared programmatically. This is because I like to keep
my aliases file for stuff that could work too with other shells were
the syntax a bit different, and aliases related to Elisp are kept
programmatically. I’ll also declare ~list-buffers~ an alias of ~ibuffer~
because naming it that way kind of makes more sense to me.
#+begin_src emacs-lisp
(defalias 'list-buffers 'ibuffer)
#+end_src

I still have some stupid muscle memory telling me to open ~emacs~, ~vim~
or ~nano~ in Eshell, which is stupid: I’m already inside Emacs and I
have all its power available instantly. So, let’s open each file
passed to these commands.
#+begin_src emacs-lisp
  (defun eshell/emacs (&rest file)
    "Open each `FILE' and kill eshell.

  Old habits die hard."
    (when file
      (dolist (f (reverse file))
        (find-file f t))))
#+end_src

Finally, I’ll declare ~mkcd~ which allows the simultaneous creation of a
directory and moving into this newly created directory. And of course,
it will also work if the directory also exists or if parent
directories don’t, similarly to the ~-p~ option passed to ~mkdir~.
#+begin_src emacs-lisp
  (defun eshell/mkcd (dir)
    "Create the directory `DIR' and move there.

  If the directory `DIR' doesn’t exist, create it and its parents
  if needed, then move there."
    (mkdir dir t)
    (cd dir))
#+end_src

**** Custom Functions
When I’m in Eshell, sometimes I wish to open multiple files at once in
Emacs.  For this, when I have several arguments for ~find-file~, I want
to be able to open them all at once. Let’s modify ~find-file~ like so:
#+BEGIN_SRC emacs-lisp
  (defadvice find-file (around find-files activate)
    "Also find all files within a list of files. This even works recursively."
    (if (listp filename)
        (cl-loop for f in filename do (find-file f wildcards))
      ad-do-it))
#+END_SRC

I also want to be able to have multiple instances of Eshell opened at
once. For that, I declared the function ~eshell-new~ that does exactly
that.
#+begin_src emacs-lisp
  (defun eshell-new ()
    "Open a new instance of eshell."
    (interactive)
    (eshell 'N))
#+end_src

**** Environment Variables
Some environment variables need to be correctly set so Eshell can correctly
work. The first environment variable to be set is the ~PATH~, as I have a couple
of directories where executables are located. Let’s add them to our
path if they aren’t already.
#+name: table-eshell-env-path
#+caption: Paths to add to ~PATH~
| Path                | Relative to ~HOME~? |
|---------------------+---------------------|
| .pub-cache/bin      | yes                 |
| .local/bin          | yes                 |
| .cargo/bin          | yes                 |
| .gen/ruby/2.6.0/bin | yes                 |
| go/bin              | yes                 |

#+name: src-eshell-env-path
#+begin_src emacs-lisp :exports none :tangle no :var paths=table-eshell-env-path :noweb yes
  (progn
    (setq-local PATH (getenv "PATH"))
    (dolist (path paths)
      (let ((path (if (equal "yes" (cadr path))
                      (concat (getenv "HOME")
                              "/"
                              (car path))
                    (car path))))
        (unless (string-match-p (regexp-quote path) PATH)
          (setq-local PATH (concat path ":" PATH)))))
    PATH)
#+end_src

#+begin_src emacs-lisp
  (setenv "PATH" "<<src-eshell-env-path()>>")
#+end_src

I would also like to set two environment variables related to Dart development:
the ~DART_SDK~ and ~ANDROID_HOME~ variables.
#+BEGIN_SRC emacs-lisp
  (setenv "DART_SDK" "/opt/dart-sdk/bin")
  (setenv "ANDROID_HOME" (concat (getenv "HOME") "/Android/Sdk/"))
#+END_SRC

The ~EDITOR~ variable also needs to be set for git commands, especially the
~yadm~ commands.
#+BEGIN_SRC emacs-lisp
  (setenv "EDITOR" "emacsclient -c")
#+END_SRC

Finally, for some specific situations I need ~SHELL~ to be set to
something more standard than fish:
#+begin_src emacs-lisp
  (setenv "SHELL" "/bin/sh")
#+end_src

**** Visual configuration
I like to have at quick glance some information about my machine when
I fire up a terminal. I haven’t found anything that does that the way
I like it, so [[https://github.com/Phundrak/eshell-info-banner.el][I’ve written a package]]!
#+begin_src emacs-lisp
  (use-package eshell-info-banner
    :defer t
    :straight (eshell-info-banner :build t
                                  :type git
                                  :host github
                                  :repo "phundrak/eshell-info-banner.el")
    :hook (eshell-banner-load . eshell-info-banner-update-banner)
    :config
    (setq eshell-info-banner-width 80
          eshell-info-banner-partition-prefixes '("/dev" "zroot" "tank")))
#+end_src

*** Org-mode
#+begin_src emacs-lisp :noweb tangle
  (use-package org
    :straight (:build (:not autoloads) :location site)
    :after general
    :hook (org-mode . visual-line-mode)
    :hook (org-mode . org-num-mode)
    :init
    ;; (add-hook 'org-mode-hook #'visual-line-mode)
    (auto-fill-mode -1)

    :general
    (:states 'normal
     :prefix ","
     :keymaps 'org-mode-map
     "RET" #'org-ctrl-c-ret
     "*"   #'org-ctrl-c-star
     ","   #'org-ctrl-c-ctrl-c
     "'"   #'org-edit-special
     "-"   #'org-ctrl-c-minus

     "a"   #'org-agenda
     "c"   #'org-capture
     "l"   #'org-store-link
     "p"   #'org-priority

     "b"   '(:ignore t :wk "babel")
     "b."  #'org-babel-transient/body
     "bb"  #'org-babel-execute-buffer
     "bc"  #'org-babel-check-src-block
     "bC"  #'org-babel-tangle-clean
     "be"  #'org-babel-execute-maybe
     "bf"  #'org-babel-tangle-file
     "bn"  #'org-babel-next-src-block
     "bo"  #'org-babel-open-src-block-result
     "bp"  #'org-babel-previous-src-block
     "br"  #'org-babel-goto-named-result
     "bR"  #'org-babel-remove-result-one-or-many
     "bt"  #'org-babel-tangle
     "bi"  #'org-babel-view-src-block-info

     "d"   '(:ignore t :wk "dates")
     "dd"  #'org-deadline
     "ds"  #'org-schedule
     "dt"  #'org-time-stamp
     "dT"  #'org-time-stamp-inactive

     "e"   '(:ignore t :wk "export")
     "ee"  #'org-export-dispatch

     "i"   '(:ignore t :wk "insert")
     "ib"  #'org-insert-structure-template
     "id"  #'org-insert-drawer
     "ie"  #'org-set-effort
     "if"  #'org-footnote-new
     "ih"  #'org-insert-heading
     "ii"  #'org-insert-item
     "il"  #'org-insert-link
     "in"  #'org-add-note
     "ip"  #'org-set-property
     "is"  #'org-insert-subheading
     "it"  #'org-set-tags-command

     "j"   '(:ignore t :wk "jump")
     "ja"  #'counsel-org-goto-all
     "jh"  #'counsel-org-goto

     "t"   '(:ignore t :wk "tables")
     "ta"  #'org-table-align
     "te"  #'org-table-eval-formula
     "tf"  #'org-table-field-info
     "th"  #'org-table-convert
     "tl"  #'org-table-recalculate
     "ts"  #'org-table-sort-lines
     "tw"  #'org-table-wrap-region
     "tN"  #'org-table-create-with-table.el

     "tc"  #'org-table-previous-field
     "tr"  #'org-table-next-field
     "tC"  #'org-table-move-column-left
     "tT"  #'org-table-move-row-down
     "tS"  #'org-table-move-row-up
     "tR"  #'org-table-move-column-right

     "td"  '(:ignore t :wk "delete")
     "tdc" #'org-table-delete-column
     "tdr" #'org-table-kill-row

     "ti"  '(:ignore t :wk "insert")
     "tic" #'org-table-insert-column
     "tih" #'org-table-insert-hline
     "tir" #'org-table-insert-row
     "tiH" #'org-table-hline-and-move

     "tt"  '(:ignore t :wk "toggle")
     "ttf" #'org-table-toggle-formula-debugger
     "tto" #'org-table-toggle-coordinate-overlays

     "T"   '(:ignore t :wk "toggle")
     "Tc"  #'org-toggle-checkbox
     "Ti"  #'org-toggle-inline-images
     "Tl"  #'org-latex-preview
     "Tn"  #'org-num-mode
     "Ts" 'phundrak/toggle-org-src-window-split
     "Tt"  #'org-show-todo-tree
     "TT"  #'org-todo)

    (:states 'normal
     :keymaps 'org-src-mode-map
     :prefix ","
     "'" #'org-edit-src-exit
     "k" #'org-edit-src-abort)

    :config
    (progn
      (setq org-hide-leading-stars             nil
            org-superstar-leading-bullet       ?\s
            org-hide-macro-markers             t
            org-ellipsis                       " ⤵"
            org-image-actual-width             550
            org-redisplay-inline-images        t
            org-display-inline-images          t
            org-startup-with-inline-images     "inlineimages"
            org-pretty-entities                t
            org-fontify-whole-heading-line     t
            org-fontify-done-headline          t
            org-fontify-quote-and-verse-blocks t
            org-startup-indented               t
            org-startup-align-all-tables       t
            org-use-property-inheritance       t
            org-list-allow-alphabetical        t
            org-M-RET-may-split-line           nil
            org-src-window-setup               'split-window-below)

      <<org-agenda-files>>
      <<org-use-sub-superscripts>>
      <<org-latex-compiler>>
      <<org-latex-listings>>
      <<org-latex-default-packages>>
      <<org-export-latex-hyperref-format>>
      <<org-latex-pdf-process>>
      <<org-re-reveal-root>>
      <<org-html-validation>>
      <<org-latex-classes>>
      <<org-publish-projects>>
      ))
#+end_src

#+begin_src emacs-lisp
  (use-package evil-org
    :straight (:build t)
    :after org
    :hook (org-mode . evil-org-mode)
    :config
    ;; (dolist (key '("h" "j" "k" "l"))
    ;;   (define-key org-mode-map (kbd (format "M-%s" key)) 'undefined))
    (setq-default evil-org-movement-bindings
                  '((up . "s")
                    (down . "t")
                    (left . "c")
                    (right . "r")))
    (evil-org-set-key-theme '(textobjects navigation calendar additional shift operators))
    (require 'evil-org-agenda)
    (evil-org-agenda-set-keys))
#+end_src

Since very recently, the ~contrib/lisp/~ directory of org moved out of
the main repository to [[https://git.sr.ht/~bzg/org-contrib][this repository]]. On the other hand,
~contrib/scripts/~ moved to [[https://code.orgmode.org/bzg/worg/src/master/code][the worg repository]], but I don’t need
it. The main reason I want ~org-contrib~ is due to ~ox-extra~ that allow
the usage of the ~:ignore:~ tag in org.
#+begin_src emacs-lisp
  (use-package org-contrib
    :straight (:build t)
    :init
    (require 'ox-extra)
    (ox-extras-activate '(latex-header-blocks ignore-headlines)))
#+end_src

**** Agenda
:PROPERTIES:
:header-args:emacs-lisp: :tangle no :exports code :results silent
:END:
#+name: org-agenda-files
#+begin_src emacs-lisp
  (setq-default org-agenda-files (list "~/org/agenda" "~/org/notes.org"))
#+end_src

**** Behavior
A useful package I like is ~toc-org~ which creates automatically a table
of contents. My main usage for this however is not just to create a
table of content of my files to quickly jump around my file (I have
~counsel-org-goto~ for that), but it is for creating table of contents
for org files that will be hosted and viewable on Github.
#+begin_src emacs-lisp
  (use-package toc-org
    :after org
    :straight (:build t)
    :init
    (add-to-list 'org-tag-alist '("TOC" . ?T))
    :hook (org-mode . toc-org-mode)
    :hook (markdown-mode . toc-org-mode))
#+end_src

**** Babel
A package I use from time to time is ~ob-latex-as-png~ which allows me
to easily convert a LaTeX snippet into a PNG, regardless of the
exporter I use afterwards. Its installation is pretty simple:
#+begin_src emacs-lisp
  (use-package ob-latex-as-png
    :defer t
    :straight (:build t))
#+end_src

**** File export
:PROPERTIES:
:header-args:emacs-lisp: :tangle no :exports code :results silent
:END:
I want to disable by default behavior of ~^~ and ~_~ for only one
character, making it compulsory to use instead ~^{}~ and ~_{}~
respectively. This is due to my frequent usage of the underscore in my
org files as a regular character and not a markup one, especially when
describing phonetics evolution. So, let’s disable it:
#+NAME: org-use-sub-superscripts
#+BEGIN_SRC emacs-lisp
  (setq org-use-sub-superscripts (quote {}))
#+END_SRC

***** LaTeX
When it comes to exports, I want the LaTeX and PDF exports to be done
with XeLaTeX only. This implies the modification of the following
variable:
#+NAME: org-latex-compiler
#+BEGIN_SRC emacs-lisp
  (setq org-latex-compiler "xelatex")
#+END_SRC

I also want to get by default ~minted~ for LaTeX listings so I can have
syntax highlights:
#+NAME: org-latex-listings
#+BEGIN_SRC emacs-lisp
  (setq org-latex-listings 'minted)
#+END_SRC

The default packages break my LaTeX exports: for some reasons, images
are not loaded and exported in PDFs, so I needed to redifine the
default packages excluding the one that broke my exports. I also added
a default package, ~minted~ for syntax highlighting.
#+NAME: org-latex-default-packages
#+BEGIN_SRC emacs-lisp
  (setq org-latex-default-packages-alist '((""         "graphicx"  t)
                                           ("T1"       "fontspec"  t ("pdflatex"))
                                           (""         "longtable" nil)
                                           (""         "wrapfig"   nil)
                                           (""         "rotating"  nil)
                                           ("normalem" "ulem"      t)
                                           (""         "amsmath"   t)
                                           (""         "textcomp"  t)
                                           (""         "amssymb"   t)
                                           (""         "capt-of"   nil)
                                           (""         "minted"    nil)
                                           (""         "hyperref"  nil)))
#+END_SRC

By the way, reference links in LaTeX should be written in this format:
#+NAME: org-export-latex-hyperref-format
#+BEGIN_SRC emacs-lisp
  (setq org-export-latex-hyperref-format "\\ref{%s}")
#+END_SRC

When it comes to the export itself, the latex file needs to be
processed several times through XeLaTeX in order to get some
references right. Don’t forget to also run bibtex!
#+NAME: org-latex-pdf-process
#+BEGIN_SRC emacs-lisp
  (setq org-latex-pdf-process
        '("xelatex -8bit -shell-escape -interaction nonstopmode -output-directory %o %f"
          "bibtex %b"
          "xelatex -8bit -shell-escape -interaction nonstopmode -output-directory %o %f"
          "xelatex -8bit -shell-escape -interaction nonstopmode -output-directory %o %f"))
#+END_SRC

Finally, org-mode is supposed to automatically clean logfiles after it
exports an org file to LaTeX. However, it misses a few, so I need to
add their extension like so:
#+begin_src emacs-lisp
  (dolist (ext '("bbl" "lot"))
    (add-to-list 'org-latex-logfiles-extensions ext t))
#+end_src

***** HTML
For Reveal.JS exports, I need to set where to find the framework by
default:
#+NAME: org-re-reveal-root
#+BEGIN_SRC emacs-lisp
  (setq org-re-reveal-root "https://cdn.jsdelivr.net/npm/reveal.js")
#+END_SRC

On HTML exports, Org-mode tries to include a validation link for the
exported HTML. Let’s disable that since I never use it.
#+NAME: org-html-validation
#+BEGIN_SRC emacs-lisp
  (setq org-html-validation-link nil)
#+END_SRC

**** LaTeX formats
:PROPERTIES:
:header-args:emacs-lisp: :tangle no :exports code :results silent
:END:
I currently have two custom formats for my Org-mode exports: one for general use
(initialy for my conlanging files, hence its ~conlang~ name), and one for beamer
exports.

Below is the declaration of the ~conlang~ LaTeX class:
#+NAME: org-latex-class-conlang
#+BEGIN_SRC emacs-lisp
  '("conlang"
    "\\documentclass{book}"
    ("\\chapter{%s}" . "\\chapter*{%s}")
    ("\\section{%s}" . "\\section*{%s}")
    ("\\subsection{%s}" . "\\subsection*{%s}")
    ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
#+END_SRC

And here is the declaration of the ~beamer~ class:
#+NAME: org-latex-class-beamer
#+BEGIN_SRC emacs-lisp
  `("beamer"
    ,(concat "\\documentclass[presentation]{beamer}\n"
             "[DEFAULT-PACKAGES]"
             "[PACKAGES]"
             "[EXTRA]\n")
    ("\\section{%s}" . "\\section*{%s}")
    ("\\subsection{%s}" . "\\subsection*{%s}")
    ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
#+END_SRC

Both these classes have to be added to ~org-latex-classes~ like so:
#+NAME: org-latex-classes
#+BEGIN_SRC emacs-lisp :noweb yes
  (eval-after-load "ox-latex"
    '(progn
       (add-to-list 'org-latex-classes
                    <<org-latex-class-conlang>>
                    )
       (add-to-list 'org-latex-classes
                    <<org-latex-class-beamer>>
                    )))
#+END_SRC

**** Projects
:PROPERTIES:
:header-args:emacs-lisp: :tangle no :exports code :results silent
:END:
Another great features of Org-mode is the Org projects that allow the user to
easily publish a bunch of org files to a remote location. Here is the current
declaration of my projects, which will be detailed later:
#+NAME: org-publish-projects
#+BEGIN_SRC emacs-lisp :noweb yes
  <<org-proj-config-setup>>
  <<org-proj-lang-setup>>
  (setq org-publish-project-alist
        `(
          <<org-proj-config-html>>
          <<org-proj-config-static>>
          <<org-proj-config>>
          <<org-proj-lang-html>>
          <<org-proj-lang-pdf>>
          <<org-proj-lang-static>>
          <<org-proj-lang>>))
#+END_SRC

***** Configuration website
This is my configuration for exporting my dotfiles to my website in a web format
only. No PDFs or anything, just HTML. Please note that I do not use that often
anymore, I much prefer the automatic script that I have which deploys through my
Drone instance my website on git pushes.

And before we get into the actual configuration, I would like to introduce a
couple of variables. This is a bit more verbose than if I declared everything
manually, but now I can change all three values at the same time without a
hasle.
#+NAME: org-proj-config-setup
#+BEGIN_SRC emacs-lisp
  (defvar phundrak//projects-config-target
    "/rsync:Tilo:~/www/phundrak.com/config"
    "Points to where exported files for config.phundrak.com should be put")
  (defvar phundrak//projects-config-source
    "~/org/config/"
    "Points to where the sources for config.phundrak.com are")
  (defvar phundrak//projects-config-language
    "en"
    "Language of config.phundrak.com")
  (defvar phundrak//projects-config-recursive
    t
    "Defines whether subdirectories should be parsed for config.phundrak.com")
#+END_SRC

Now, here is my configuration. In this snippet, my org files located in my
source directory get exported in the HTML format and published to my target
directory on my remote server through RSYNC via TRAMP. A sitemap is
automatically generated, which comes in handy with the online sitemap that is
available through the navigation bar.
#+NAME: org-proj-config-html
#+BEGIN_SRC emacs-lisp
  ("config-website-org"
   :base-directory ,phundrak//projects-config-source
   :base-extension "org"
   :publishing-directory ,phundrak//projects-config-target
   :recursive ,phundrak//projects-config-recursive
   :language ,phundrak//projects-config-language
   :publishing-function org-html-publish-to-html
   :headline-levels 5
   :auto-sitemap t
   :auto-preamble t)
#+END_SRC

We also have the component for all the static files needed to run the website
(mostly images tbh).
#+NAME: org-proj-config-static
#+BEGIN_SRC emacs-lisp
  ("config-website-static"
   :base-directory ,phundrak//projects-config-source
   :base-extension "png\\|jpg\\|gif\\|webp\\|svg\\|jpeg\\|ttf\\|woff\\|txt\\|epub\\|md"
   :publishing-directory ,phundrak//projects-config-target
   :recursive ,phundrak//projects-config-recursive
   :language ,phundrak//projects-config-language
   :publishing-function org-publish-attachment)
#+END_SRC

The project is then defined like so:
#+NAME: org-proj-config
#+BEGIN_SRC emacs-lisp
  ("config-website"
   :components ("config-website-org"
                "config-website-static"))
#+END_SRC

***** Linguistics website
My linguistics website is made out of three projects. As for the previous
project, let’s declare the common values for these.
#+NAME: org-proj-lang-setup
#+BEGIN_SRC emacs-lisp
  (defvar phundrak//projects-conlanging-target
    "/rsync:Tilo:~/www/phundrak.com/langue/"
    "Points to where exported files for langue.phundrak.com should be put")
  (defvar phundrak//projects-conlanging-source
    "~/Documents/conlanging/content/"
    "Points to where the sources for langue.phundrak.com are")
  (defvar phundrak//projects-conlanging-language
    "fr"
    "Language of langue.phundrak.com")
  (defvar phundrak//projects-conlanging-recursive
    t
    "Defines whether subdirectories should be parsed for langue.phundrak.com")
#+END_SRC

The first component is the one generating the HTML files from the org files.
#+NAME: org-proj-lang-html
#+BEGIN_SRC emacs-lisp
  ("langue-phundrak-com-org"
   :base-directory ,phundrak//projects-conlanging-source
   :base-extension "org"
   :exclude "\\./\\(CONTRIB\\|README\\|head\\|temp\\|svg-ink\\).*"
   :publishing-directory ,phundrak//projects-conlanging-target
   :recursive ,phundrak//projects-conlanging-recursive
   :language ,phundrak//projects-conlanging-language
   :publishing-function org-html-publish-to-html
   :headline-levels 5
   :auto-sitemap t
   :auto-preamble t)
#+END_SRC

We also have the component for the LaTeX and PDF part of the website:
#+NAME: org-proj-lang-pdf
#+BEGIN_SRC emacs-lisp
  ("langue-phundrak-com-pdf"
   :base-directory ,phundrak//projects-conlanging-source
   :base-extension "org"
   :exclude "\\./\\(CONTRIB\\|README\\|index\\|head\\|temp\\|svg-ink\\).*"
   :publishing-directory ,phundrak//projects-conlanging-target
   :recursive ,phundrak//projects-conlanging-recursive
   :language ,phundrak//projects-conlanging-language
   :publishing-function org-latex-publish-to-pdf
   :headline-levels 5
   :auto-preamble t)
#+END_SRC

And lastly, we have the component for all the static files needed to run the
website:
#+NAME: org-proj-lang-static
#+BEGIN_SRC emacs-lisp
  ("langue-phundrak-com-static"
   :base-directory ,phundrak//projects-conlanging-source
   :base-extension "png\\|jpg\\|gif\\|webp\\|svg\\|jpeg\\|ttf\\|woff\\|txt\\|epub"
   :publishing-directory ,phundrak//projects-conlanging-target
   :recursive ,phundrak//projects-conlanging-recursive
   :language ,phundrak//projects-conlanging-language
   :publishing-function org-publish-attachment)
#+END_SRC

The project is then defined like so:
#+NAME: org-proj-lang
#+BEGIN_SRC emacs-lisp
  ("langue-phundrak-com"
   :components ("langue-phundrak-com-org"
                "langue-phundrak-com-static"
                "langue-phundrak-com-pdf"))
#+END_SRC

**** Visual Configuration
#+begin_src emacs-lisp
  (use-package mixed-pitch
    :after org
    :straight t
    :hook
    (org-mode . mixed-pitch-mode)
    :config
    (add-hook 'org-agenda-mode-hook (lambda () (mixed-pitch-mode -1))))
#+end_src

#+begin_src emacs-lisp
  (use-package org-appear
    :after org
    :straight (:build t)
    :hook (org-mode . org-appear-mode)
    :config
    (setq org-appear-autoemphasis   t
          org-hide-emphasis-markers t
          org-appear-autolinks      t
          org-appear-autoentities   t
          org-appear-autosubmarkers t)
    (run-at-time nil nil #'org-appear--set-elements))
#+end_src

#+begin_src emacs-lisp
  (use-package org-superstar
    :after org
    :straight (:build t)
    :hook (org-mode . org-superstar-mode)
    :config
    (setq org-superstar-leading-bullet   ?\s
          org-superstar-leading-fallback ?\s
          org-hide-leading-stars         nil
          org-superstar-todo-bullet-alist
          '(("TODO" . 9744)
            ("[ ]"  . 9744)
            ("DONE" . 9745)
            ("[X]"  . 9745))))
#+end_src

#+begin_src emacs-lisp
  (use-package org-fancy-priorities
    :after (org all-the-icons)
    :straight (:build t)
    :hook (org-mode        . org-fancy-priorities-mode)
    :hook (org-agenda-mode . org-fancy-priorities-mode)
    :config
    (setq org-fancy-priorities-list `(,(all-the-icons-faicon "flag"     :height 1.1 :v-adjust 0.0)
                                      ,(all-the-icons-faicon "arrow-up" :height 1.1 :v-adjust 0.0)
                                      ,(all-the-icons-faicon "square"   :height 1.1 :v-adjust 0.0))))
#+end_src

*** Tramp
Tramp is an Emacs built-in package that allows the user to connect to
various hosts using various protocols, such as ~ssh~ and
~rsync~. However, I have some use-case for Tramp which are not
supported natively. I will describe them here.
#+begin_src emacs-lisp
  (require 'tramp)
#+end_src

**** Yadm
# ~yadm~ is the utility I use for managing my dotfiles, and it is a wrapper In
# order to manage my dotfiles, I use the following shortcut to launch Magit Status
# for ~yadm~:
[[https://yadm.io/][~yadm~]] is a git wrapper made to easily manage your dotfiles. It has
loads of features I don’t use (the main one I like but don’t use is
its [[https://yadm.io/docs/templates][Jinja-like host and OS-aware syntax]]), but unfortunately Magit
doesn’t play nice with it. Tramp to the rescue, and this page explains
how! Let’s just insert in my config this code snippet:
#+begin_src emacs-lisp
(add-to-list 'tramp-methods
                   '("yadm"
                     (tramp-login-program "yadm")
                     (tramp-login-args (("enter")))
                     (tramp-login-env (("SHELL") ("/bin/sh")))
                     (tramp-remote-shell "/bin/sh")
                     (tramp-remote-shell-args ("-c"))))
#+end_src

I’ll also create a fuction for connecting to this new Tramp protocol:
#+begin_src emacs-lisp
  (defun my/yadm ()
    "Manage my dotfiles through TRAMP."
    (interactive)
    (magit-status "/yadm::"))
#+end_src

** Making my life easier
*** Bufler
Bufler is a package that organizes and lists buffers in a much better
way than how they are usually sorted. You can easily and quickly find
buffers by their group, not only by their name, and THIS is great
news! Also, no ~helm~ please! And for some reasons the keybindings are
borked by default, so let’s redefine them, and let’s also rebind ~SPC~
to ~p~ since it would conflict with my main ~general~ prefix.
#+begin_src emacs-lisp
  (use-package bufler
    :straight (bufler :build t
                      :files (:defaults (:exclude "helm-bufler.el")))
    :defer t
    :general
    (:keymaps 'bufler-list-mode-map
     :states  'normal
     "?"   #'hydra:bufler/body
     "g"   #'bufler
     "f"   #'bufler-list-group-frame
     "F"   #'bufler-list-group-make-frame
     "N"   #'bufler-list-buffer-name-workspace
     "k"   #'bufler-list-buffer-kill
     "p"   #'bufler-list-buffer-peek
     "s"   #'bufler-list-buffer-save
     "RET" #'bufler-list-buffer-switch))
#+end_src

*** Helpful
As the name tells, ~helpful~ is a really helpful package which greatly
enhances a couple of built-in functions from Emacs, namely:
| Vanilla Emacs Function | Helpful Function | Comment                                       |
|------------------------+------------------+-----------------------------------------------|
| ~describe-function~      | ~helpful-callable~ | Only interactive functions                    |
| ~describe-function~      | ~helpful-function~ | Only actual functions (including interactive) |
| ~describe-function~      | ~helpful-macro~    |                                               |
| ~describe-command~       | ~helpful-command~  |                                               |
| ~describe-key~           | ~helpful-key~      |                                               |
| ~describe-variable~      | ~helpful-variable~ |                                               |

#+begin_src emacs-lisp
  (use-package helpful
    :straight (:build t)
    :after (counsel ivy)
    :custom
    (counsel-describe-function-function #'helpfull-callable)
    (counsel-describe-variable-function #'helpfull-variable)
    :bind
    ([remap describe-function] . counsel-describe-function)
    ([remap describe-command]  . helpful-command)
    ([remap describe-variable] . counsel-describe-variable)
    ([remap describe-key]      . helpful-key))
#+end_src

** Project Management
*** Magit
Magit is an awesome wrapper around Git for Emacs! Very often, I go
from disliking to really hating Git GUI clients because they often
obfuscate which Git commands are used to make things happen. Such a
thing doesn’t happen with Magit, it’s pretty transparent but it still
provides some awesome features and visualizations of what you are
doing and what Git is doing! In short, I absolutely love it!
#+begin_src emacs-lisp
  (use-package magit
    :straight (:build t)
    :defer t
    :custom
    (magit-display-buffer-function #'magit-display-buffer-same-window-except-diff-v1)
    :config
    (progn
      (general-define-key
       :keymaps '(git-rebase-mode-map)
       "C-t" #'evil-next-line
       "C-s" #'evil-previous-line)
      (general-define-key
       :keymaps 'git-rebase-mode-map
       :state 'normal
       :prefix ","
       "," #'with-editor-finish
       "k" #'with-editor-cancel
       "a" #'with-editor-cancel)))
#+end_src

[[https://github.com/alphapapa][Alphapapa]] also created an awesome package for Magit: magit-todos which
display in the Magit buffer a list of TODOs found in the current
project to remind you of what to do next.
#+begin_src emacs-lisp
  (use-package magit-todos
    :straight (:build t)
    :after magit
    :config
    (setq magit-todos-ignore-case t))
#+end_src

*** Forge
*NOTE*: Make sure to configure a GitHub token before using this
 package!
- [[https://magit.vc/manual/forge/Token-Creation.html#Token-Creation][Token Creation]]
- [[https://magit.vc/manual/ghub/Getting-Started.html#Getting-Started][Getting started]]
#+begin_src emacs-lisp
  (use-package forge
    :after magit
    :straight (:build t))
#+end_src

*** Projectile
#+begin_src emacs-lisp
  (use-package projectile
    :straight (:build t)
    :defer t
    :diminish projectile-mode
    :config (projectile-mode)
    :custom ((projectile-completion-system 'ivy))
    :bind-keymap
    ("C-c p" . projectile-command-map)
    :init
    ;; NOTE: Set this to the folder where you keep your Git repos!
    (setq projectile-switch-project-action #'projectile-dired))

  (use-package counsel-projectile
    :straight (:build t)
    :after (counsel projectile)
    :config (counsel-projectile-mode))
#+end_src

** Programming languages
*** DSLs
DSLs, or /Domain Specific Languages/, are languages dedicated to some
very tasks, such as configuration languages or non-general programming
such as SQL.

**** Shells
Aside from Eshell, my main shell on my machine is fish (see my [[file:fish.org][fish
config]]), therefore I need a mode for it.
#+begin_src emacs-lisp
  (use-package fish-mode
    :straight (:build t)
    :defer t)
#+end_src

**** Caddy
[[https://caddyserver.com/][Caddy]] (or /Caddyserver/) is a web server akin to Nginx or Apache which I
find much easier to configure that the latter two, plus it has
built-in support for automatically generating SSL certificates with
Letsencrypt! Automatic HTTPS, what more do you want?

All that is nice and all, but Emacs doesn’t support the syntax of
Caddy files natively, so let’s install ~caddyfile-mode~:
#+begin_src emacs-lisp
  (use-package caddyfile-mode
    :defer t
    :straight (:build t)
    :mode (("Caddyfile\\'" . caddyfile-mode)
           ("caddy\\.conf\\'" . caddyfile-mode)))
#+end_src

**** Nginx
Nginx is another webserver, older and more mature than Caddy. A couple
of packages are required in order to be able to properly work with
Nginx configuration files. First, we need the correct mode for editing
Nginx configuration files.
#+begin_src emacs-lisp
  (use-package nginx-mode
    :straight (:build t)
    :defer t)
#+end_src

We then also have an autocompletion package that adds to ~company~ the
Nginx syntax.
#+begin_src emacs-lisp
  (use-package company-nginx
    :straight (:build t)
    :defer t
    :config
    (add-hook 'nginx-mode-hook (lambda ()
                                 (add-to-list 'company-backends #'company-nginx))))
#+end_src

**** Yaml
#+begin_src emacs-lisp
  (use-package yaml-mode
    :defer t
    :straight (:build t)
    :mode "\\.yml\\'"
    :mode "\\.yaml\\'")
#+end_src

*** Flycheck
#+begin_src emacs-lisp
  (use-package flycheck
    :straight (:build t)
    :defer t
    :init
    (global-flycheck-mode)
    :config
    (setq flycheck-emacs-lisp-load-path 'inherit)

    ;; Rerunning checks on every newline is a mote excessive.
    (delq 'new-line flycheck-check-syntax-automatically)
    ;; And don’t recheck on idle as often
    (setq flycheck-idle-change-delay 2.0)

    ;; For the above functionality, check syntax in a buffer that you
    ;; switched to on briefly. This allows “refreshing” the syntax check
    ;; state for several buffers quickly after e.g. changing a config
    ;; file.
    (setq flycheck-buffer-switch-check-intermediate-buffers t)

    ;; Display errors a little quicker (default is 0.9s)
    (setq flycheck-display-errors-delay 0.2))

  (use-package flycheck-popup-tip
    :straight (:build t)
    :after flycheck
    :hook (flycheck-mode . flycheck-popup-tip-mode)
    :config
    (setq flycheck-popup-tip-error-prefix "X ")
    (after! evil
      (add-hook 'evil-insert-state-entry-hook
                #'flycheck-popup-tip-delete-popup)
      (add-hook 'evil-replace-state-entry-hook
                #'flycheck-popup-tip-delete-popup)))

  (use-package flycheck-posframe
    :straight (:build t)
    :hook (flycheck-mode . flycheck-posframe-mode)
    :config
    (setq flycheck-posframe-warning-prefix "! "
          flycheck-posframe-info-prefix    "··· "
          flycheck-posframe-error-prefix   "X "))
#+end_src

*** General Programming Languages
**** EmacsLisp
#+begin_src emacs-lisp
  (use-package eldoc
    :after company
    :init
    (eldoc-add-command 'company-complete-selection
                       'company-complete-common
                       'company-capf
                       'company-abort))
#+end_src

#+begin_src emacs-lisp
  (general-define-key
   :states 'motion
   :keymaps 'emacs-lisp-mode-map
   :prefix ","

   "'"  #'ielm

   "c"  '(emacs-lisp-byte-compile :which-key "Byte compile")

   "e"  '(nil :which-key "eval")
   "eb" #'eval-buffer
   "ed" #'eval-defun
   "ee" #'eval-last-sexp
   "er" #'eval-region

   "h"  '(nil :which-key "help")
   "hh" #'helpful-at-point)
#+end_src

** Visual Configuration
*** Dashboard
#+begin_src emacs-lisp
  (use-package dashboard
    :straight (:build t)
    :ensure t
    :after all-the-icons
    :config
    (setq dashboard-banner-logo-title "Phundrak’s Vanilla Emacs"
          dashboard-startup-banner    'logo
          dashboard-center-content    t
          dashboard-show-shortcuts    t
          dashboard-set-navigator     t
          dashboard-set-heading-icons t
          dashboard-set-file-icons    t
          initial-buffer-choice       (lambda () (get-buffer "*dashboard*"))
          dashboard-projects-switch-function 'counsel-projectile-switch-project-by-name)
    (setq dashboard-navigator-buttons
          `(((,(all-the-icons-faicon "language" :height 1.1 :v-adjust 0.0)
              "Linguistics website"
              ""
              (lambda (&rest _) (browse-url "https://langue.phundrak.com")))

             (,(all-the-icons-faicon "firefox" :height 1.1 :v-adjust 0.0)
              "Config Website"
              ""
              (lambda (&rest _) (browse-url "https://config.phundrak.com"))))

            ((,(all-the-icons-octicon "git-branch" :height 1.1 :v-adjust 0.0)
              "Dotfiles sources"
              ""
              (lambda (&rest _) (browse-url "https://labs.phundrak.com/phundrak/dotfiles")))
             ("!" "Issues" "Show issues" (lambda (&rest _)
                                           (browse-url "https://labs.phundrak.com/phundrak/dotfiles/issues"))
              warning))
            ((,(all-the-icons-faicon "level-up" :height 1.1 :v-adjust 0.0)
              "Update packages"
              ""
              (lambda (&rest _) (progn
                                  (require 'straight)
                                  (straight-pull-all)))))))

    (setq dashboard-items '((recents  . 15)
                            (projects . 10)))
    (dashboard-setup-startup-hook)
    :init
    (add-hook 'after-init-hook 'dashboard-refresh-buffer))
#+end_src

*** Modeline
#+begin_src emacs-lisp
  (use-package doom-modeline
    :straight (:build t)
    :defer t
    :init (doom-modeline-mode 1)
    :custom ((doom-modeline-height 15)))
#+end_src

*** Theme
#+begin_src emacs-lisp
  (use-package doom-themes
    :straight (:build t)
    :defer t
    :init (load-theme 'doom-nord t))
#+end_src

*** Icons? Did someone say icons?
/*YES! ALL OF THEM!*/

Ahem…

The package ~all-the-icons~ allows us to use a wide variety of icons in
Emacs for various purposes, wherever we want, and /THAT/ is *GREAT*! I’ll
(ab)use this feature in my config, be warned! *NOTE*: The first time a
configuration with ~all-the-icons~ is loaded on a machine, the needed
fonts might not be available, so you’ll need to install them with the
command ~M-x all-the-icons-install-fonts~.
#+begin_src emacs-lisp
  (use-package all-the-icons
    :defer t)
#+end_src

~prettify-symbols-mode~ is also a nifty feature of Emacs, and it is
built-in! With that, I can replace strings of my choice by another
character of my choice!
#+begin_src emacs-lisp
  (dolist (symbol '(("lambda" . 955)
                    ("mapc" . 8614)))
    (add-to-list 'prettify-symbols-alist symbol))
#+end_src

Let’s enable this mode for any programming mode:
#+begin_src emacs-lisp
  (add-hook 'emacs-lisp-mode-hook #'prettify-symbols-mode)
#+end_src

*** Rainbow Delimiters
#+begin_src emacs-lisp
  (use-package rainbow-delimiters
    :straight (:build t)
    :defer t
    :hook (prog-mode . rainbow-delimiters-mode))
#+end_src

*** Y’all want some more /COLORS/?
It is possible to make info buffers much more colorful (and imo easier to read) with this simple package:
#+begin_src emacs-lisp
  (use-package info-colors
    :straight (:build t)
    :commands info-colors-fnontify-node
    :hook (Info-selection . info-colors-fontify-node)
    :hook (Info-mode . mixed-pitch-mode))
#+end_src

** Misc
*** ~avy~
~avy~ is a really convenient way of jumping around, but I’ll need some
configuration to make it bépo-compatible.
#+begin_src emacs-lisp
  (use-package avy
    :defer t
    :straight (:build t)
    :config
    (setq avy-keys '(?a ?u ?i ?e ?c ?t ?s ?r ?n))
    :general
    (:states 'normal
     "gl" #'avy-goto-line))
#+end_src

*** Calc
Let’s give ~calc-mode~ some better defaults.
#+begin_src emacs-lisp
  (setq calc-angle-mode    'rad
        calc-symbolic-mode t)
#+end_src

*** Elcord
What’s the point of using Emacs if you can’t tell everyone?
#+begin_src emacs-lisp
  (use-package elcord
    :straight (:built t)
    :defer t
    :config
    (setq elcord-use-major-mode-as-main-icon t
          elcord-refresh-rate                5
          elcord-display-elapsed             nil))
#+end_src

*** ~ivy-quick-find-files.el~
This package is a small utility package I’ve written in order to
quickly find files across my filesystem.
#+begin_src emacs-lisp
  (use-package ivy-quick-find-files
    :defer t
    :straight (ivy-quick-find-files :type git
                                    :host github
                                    :repo "phundrak/ivy-quick-find-files.el"
                                    :build t)
    :config
    (setq ivy-quick-find-files-program 'fd
          ivy-quick-find-files-dirs-and-exts '(("~/org"                  . "org")
                                               ("~/Documents/conlanging" . "org")
                                               ("~/Documents/university" . "org"))))
#+end_src

*** Winum
Winum allows Emacs to associate windows with a specific number and
navigate through these windows by directly refering to their
associated number! This allows for faster window configuration than
just going to the frame above, then left, left, and up.
#+begin_src emacs-lisp
  (use-package winum
    :straight (:build t)
    :init (winum-mode))
#+end_src

* Keybindings
Undefining some stuff to make keybind prefixes work correctly.
#+begin_src emacs-lisp
  (general-define-key
   :keymaps '(backtrace-mode-map diff-minor-mode-map magit-mode-map
              rmail-mode-map evil-motion-state-map dired-mode-map
              epa-key-list-mode-map special-mode-map splash-screen-keymap
              undo-tree-visualizer-mode-map magit-blame-read-only-mode-map
              org-agenda-keymap org-agenda-mode-map git-rebase-mode-map
              Buffer-menu-mode-map custom-mode-map gfm-view-mode-map
              electric-help-map image-mode-map magit-diff-mode-map)
   "SPC" nil)

  (general-define-key
   :keymaps 'evil-motion-state-map
   "," nil)

  (general-define-key
   :keymaps 'evil-insert-state-map
   "C-t" nil)

  (general-define-key
   :keymaps '(diff-mode-map help-mode-map image-mode-map
              dired-mode-map Man-mode-map eww-mode-map magit-mode-map
              debugger-mode-map dired-mode-map custom-mode-map
              eshell-mode-map)
   :states 'normal
   "SPC" nil)

  (general-define-key
   :keymaps 'magit-mode-map
   :states 'visual
   "SPC" nil)

  (general-define-key
   :keymaps '(diff-mode-map org-agenda-keymap org-agenda-mode-map)
   :states 'motion
   "SPC" nil)

  (general-define-key
   :keymaps 'eshell-mode-map
   :states 'normal
   "c" #'evil-backward-char
   "t" #'evil-next-line
   "s" #'evil-previous-line
   "r" #'evil-forward-char)

  (general-define-key
   :keymaps 'evil-insert-state-map
   "U"   nil
   "C-a" nil
   "C-y" nil
   "C-e" nil)

  (general-define-key
   :states 'normal
   "U"   #'evil-redo
   "C-a" #'beginning-of-line
   "C-e" #'end-of-line
   "C-y" #'yank)
#+end_src

#+begin_src emacs-lisp
  (general-define-key
   :states 'normal
   :prefix "SPC"
    "SPC" '(counsel-M-x :wk "M-x")
    "'"   #'shell-pop

    "a"   '(nil :wk "apps")
    "ac"  #'calc
    "ad"  #'docker
    "ae"  #'eww
    "at"  #'tetris
    "aw"  #'wttrin
    "aC"  #'calendar

    "as"  '(nil :wk "shells")
    "ase" #'eshell-new
    "asv" #'vterm

    "b"   '(nil :wk "buffers")
    "bb"  #'bufler-switch-buffer
    "bB"  #'bury-buffer
    "bl"  #'bufler-switch-buffer
    "bd"  #'kill-this-buffer
    "bD"  #'kill-buffer
    "bh"  #'dashboard-refresh-buffer
    "bm"  #'switch-to-messages-buffer
    "br"  #'counsel-buffer-or-recentf
    "bs"  #'switch-to-scratch-buffer

    "c"   '(nil :wk "code")
    "cl"  #'evilnc-comment-or-uncomment-lines

    "e"  '(nil :wk "email")
    "ec" #'mu4e-compose-new
    "em" #'mu4e

    "f"   '(nil :wk "files")
    "fc"  '((lambda ()
            (interactive)
            (find-file (concat (getenv "HOME") "/org/config/emacs.org")))
            :wk "Config file")
    "ff"  #'counsel-find-file
    "fF"  #'ivy-quick-find-files
    "fh"  #'hexl-find-file
    "fr"  #'counsel-recentf
    "fs"  #'save-buffer

    "g"   '(nil :wk "git")
    "gc"  #'magit-clone
    "gd"  #'magit-dispatch
    "gi"  #'magit-init
    "gs"  #'magit-status
    "gy"  #'my/yadm
    "gS"  #'magit-stage-file
    "gU"  #'magit-unstage-file

    "gf"  '(nil :wk "file")
    "gfd" #'magit-diff
    "gfc" #'magit-file-checkout
    "gfl" #'magit-file-dispatch
    "gfF" #'magit-find-file

    "h"   '(nil :wk "help")
    "hk"  #'wk-show-top-level
    "hd"  '(nil :wk "describe")
    "hdc" #'describe-char
    "hdf" #'helpful-callable
    "hdk" #'helpful-key
    "hdv" #'helpful-variable

    "i"   '(nil :wk "insert")
    "iy"  #'ivy-yasnippet

    "j"   '(nil :wk "jump")
    "jd"  #'dired-jump

    "p"   '(nil :wk "project")
    "p!"  #'projectile-run-shell-command-in-root
    "p&"  #'projectile-run-async-shell-command-in-root
    "pb"  #'counsel-projectile-switch-to-buffer
    "pc"  #'counsel-projectile
    "pd"  #'counsel-projectile-find-dir
    "pe"  #'projectile-edit-dir-locals
    "pf"  #'counsel-projectile-find-file
    "pg"  #'projectile-find-tag
    "pk"  #'project-kill-buffers
    "pp"  #'counsel-projectile-switch-project
    "pt"  #'ivy-magit-todos
    "pv"  #'projectile-vc

    "t"   '(nil :wk "toggles")
    "tt"  #'counsel-load-theme
    "ti"  '(nil :wk "input method")
    "tit" #'toggle-input-method
    "tis" #'set-input-mode

    "u"   #'universal-argument

    "w"   '(nil :wk "windows")
    "w-"  #'split-window-below-and-focus
    "w/"  #'split-window-right-and-focus
    "w$" #'winum-select-window-by-number
    "w0" #'winum-select-window-0-or-10
    "w1" #'winum-select-window-1
    "w2" #'winum-select-window-2
    "w3" #'winum-select-window-3
    "w4" #'winum-select-window-4
    "w5" #'winum-select-window-5
    "w6" #'winum-select-window-6
    "w7" #'winum-select-window-7
    "w8" #'winum-select-window-8
    "w9" #'winum-select-window-9
    "wb"  '((lambda ()
            (interactive)
            (progn
              (kill-this-buffer)
              (delete-window)))
            :wk "Kill buffer and window")
    "wd"  #'delete-window
    "wo"  #'other-window
    "wD"  #'delete-other-windows
    "ww"  '(nil :wk "writeroom")
    "www" #'writeroom-mode
    "wwb" #'writeroom-buffer-width/body

    "wc"  #'evil-window-left
    "wt"  #'evil-window-down
    "ws"  #'evil-window-up
    "wr"  #'evil-window-right

    "T"   '(nil :wk "text")
    "Tz"  #'hydra-zoom/body
    "Tu"  #'downcase-region
    "TU"  #'upcase-region
    "Te"  #'string-edit-at-point

    "q"   '(nil :wk "quit")
    "qf"  #'delete-frame
    "qq"  #'save-buffers-kill-terminal
    "qQ"  #'kill-emacs)
#+end_src

* Various TODOs                                                    :noexport:
** TODO advise ~evil-insert~ in eshell
Advise ~evil-insert~ to go to the end of the buffer while in
~eshell-mode~.
** TODO Write macro wrapper around ~general~
Write a macro wrapper around ~general~ for when an evil state is used in
order to make the keybind available when in ~insert-mode~ through ~M-m~.