git.shemshak.org - ~bandali/configs/blob - init.org

   1 #+title: =aminb='s Literate Emacs Configuration
   2 #+author: Amin Bandali
   3 #+babel: :cache yes
   4 #+property: header-args :tangle yes
   5
   6 * About
   7 :PROPERTIES:
   8 :CUSTOM_ID: about
   9 :END:
  10
  11 This org file is my literate configuration for GNU Emacs, and is
  12 tangled to [[./init.el][init.el]]. Packages are installed and managed using
  13 [[https://github.com/emacscollective/borg][Borg]]. Over the years, I've taken inspiration from configurations of
  14 many different people. Some of the configurations that I can remember
  15 off the top of my head are:
  16
  17 - [[https://github.com/dieggsy/dotfiles][dieggsy/dotfiles]]: literate Emacs and dotfiles configuration, uses
  18   straight.el for managing packages
  19 - [[https://github.com/dakra/dmacs][dakra/dmacs]]: literate Emacs configuration, using Borg for managing
  20   packages
  21 - [[http://pages.sachachua.com/.emacs.d/Sacha.html][Sacha Chua's literate Emacs configuration]]
  22 - [[https://github.com/dakrone/eos][dakrone/eos]]
  23 - Ryan Rix's [[http://doc.rix.si/cce/cce.html][Complete Computing Environment]] ([[http://doc.rix.si/projects/fsem.html][about cce]])
  24 - [[https://github.com/jwiegley/dot-emacs][jwiegley/dot-emacs]]: nix-based configuration
  25 - [[https://github.com/wasamasa/dotemacs][wasamasa/dotemacs]]
  26 - [[https://github.com/hlissner/doom-emacs][Doom Emacs]]
  27
  28 I'd like to have a fully reproducible Emacs setup (part of the reason
  29 why I store my configuration in this repository) but unfortunately out
  30 of the box, that's not achievable with =package.el=, not currently
  31 anyway. So, I've opted to use Borg. For what it's worth, I briefly
  32 experimented with [[https://github.com/raxod502/straight.el][straight.el]], but found that it added about 2 seconds
  33 to my init time; which is unacceptable for me: I use Emacs as my
  34 window manager (via EXWM) and coming from bspwm, I'm too used to
  35 having fast startup times.
  36
  37 ** Installation
  38
  39 To use this config for your Emacs, first you need to clone this repo,
  40 then bootstrap Borg, tell Borg to retrieve package submodules, and
  41 byte-compiled the packages. Something along these lines should work:
  42
  43 #+begin_src sh :tangle no
  44 git clone https://github.com/aminb/dotfiles ~/.emacs.d
  45 cd ~/.emacs.d
  46 make bootstrap-borg
  47 make bootstrap
  48 make build
  49 #+end_src
  50
  51 * Contents                                                   :toc_1:noexport:
  52
  53 - [[#about][About]]
  54 - [[#header][Header]]
  55 - [[#initial-setup][Initial setup]]
  56 - [[#core][Core]]
  57 - [[#post-initialization][Post initialization]]
  58 - [[#footer][Footer]]
  59
  60 * Header
  61 :PROPERTIES:
  62 :CUSTOM_ID: header
  63 :END:
  64
  65 ** First line
  66
  67 #+begin_src emacs-lisp :comments none
  68 ;;; init.el --- Amin Bandali's Emacs config -*- lexical-binding: t ; eval: (view-mode 1)-*-
  69 #+end_src
  70
  71 Enable =view-mode=, which both makes the file read-only (as a reminder
  72 that =init.el= is an auto-generated file, not supposed to be edited),
  73 and provides some convenient key bindings for browsing through the
  74 file.
  75
  76 ** License
  77
  78 #+begin_src emacs-lisp :comments none
  79 ;; Copyright (C) 2018  Amin Bandali <amin@aminb.org>
  80
  81 ;; This program is free software: you can redistribute it and/or modify
  82 ;; it under the terms of the GNU General Public License as published by
  83 ;; the Free Software Foundation, either version 3 of the License, or
  84 ;; (at your option) any later version.
  85
  86 ;; This program is distributed in the hope that it will be useful,
  87 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  88 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  89 ;; GNU General Public License for more details.
  90
  91 ;; You should have received a copy of the GNU General Public License
  92 ;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
  93 #+end_src
  94
  95 ** Commentary
  96
  97 #+begin_src emacs-lisp :comments none
  98 ;;; Commentary:
  99
 100 ;; Emacs configuration of Amin Bandali, computer scientist and functional
 101 ;; programmer.
 102
 103 ;; THIS FILE IS AUTO-GENERATED FROM `init.org'.
 104 #+end_src
 105
 106 ** Naming conventions
 107
 108 The conventions below were inspired by [[https://github.com/hlissner/doom-emacs][Doom]]'s, found [[https://github.com/hlissner/doom-emacs/blob/5dacbb7cb1c6ac246a9ccd15e6c4290def67757c/core/core.el#L3-L17][here]].
 109
 110 #+begin_src emacs-lisp :comments none
 111 ;; Naming conventions:
 112 ;;
 113 ;;   amin-...   public variables or non-interactive functions
 114 ;;   amin--...  private anything (non-interactive), not safe for direct use
 115 ;;   amin/...   an interactive function; safe for M-x or keybinding
 116 ;;   amin:...   an evil operator, motion, or command
 117 ;;   amin|...   a hook function
 118 ;;   amin*...   an advising function
 119 ;;   amin@...   a hydra command
 120 ;;   ...!       a macro
 121 #+end_src
 122
 123 * Initial setup
 124 :PROPERTIES:
 125 :CUSTOM_ID: initial-setup
 126 :END:
 127
 128 #+begin_src emacs-lisp :comments none
 129 ;;; Code:
 130 #+end_src
 131
 132 ** Emacs initialization
 133
 134 I'd like to do a couple of measurements of Emacs' startup time. First,
 135 let's see how long Emacs takes to start up, before even loading
 136 =init.el=, i.e. =user-init-file=:
 137
 138 #+begin_src emacs-lisp
 139 (defvar amin--before-user-init-time (current-time)
 140   "Value of `current-time' when Emacs begins loading `user-init-file'.")
 141 (message "Loading Emacs...done (%.3fs)"
 142          (float-time (time-subtract amin--before-user-init-time
 143                                     before-init-time)))
 144 #+end_src
 145
 146 Also, temporarily increase ~gc-cons-threshhold~ and
 147 ~gc-cons-percentage~ during startup to reduce garbage collection
 148 frequency. Clearing the ~file-name-handler-alist~ seems to help reduce
 149 startup time as well.
 150
 151 #+begin_src emacs-lisp
 152 (defvar amin--gc-cons-threshold gc-cons-threshold)
 153 (defvar amin--gc-cons-percentage gc-cons-percentage)
 154 (defvar amin--file-name-handler-alist file-name-handler-alist)
 155 (setq gc-cons-threshold (* 400 1024 1024)  ; 400 MiB
 156       gc-cons-percentage 0.6
 157       file-name-handler-alist nil
 158       ;; sidesteps a bug when profiling with esup
 159       esup-child-profile-require-level 0)
 160 #+end_src
 161
 162 Of course, we'd like to set them back to their defaults once we're
 163 done initializing.
 164
 165 #+begin_src emacs-lisp
 166 (add-hook
 167  'after-init-hook
 168  (lambda ()
 169    (setq gc-cons-threshold amin--gc-cons-threshold
 170          gc-cons-percentage amin--gc-cons-percentage
 171          file-name-handler-alist amin--file-name-handler-alist)))
 172 #+end_src
 173
 174 Increase the number of lines kept in message logs (the =*Messages*=
 175 buffer).
 176
 177 #+begin_src emacs-lisp
 178 (setq message-log-max 20000)
 179 #+end_src
 180
 181 Optionally, we could suppress some byte compiler warnings like below,
 182 but for now I've decided to keep them enabled. See documentation for
 183 ~byte-compile-warnings~ for more details.
 184
 185 #+begin_src emacs-lisp
 186 ;; (setq byte-compile-warnings
 187 ;;       '(not free-vars unresolved noruntime lexical make-local))
 188 #+end_src
 189
 190 ** whoami
 191
 192 #+begin_src emacs-lisp
 193 (setq user-full-name "Amin Bandali"
 194       user-mail-address "amin@aminb.org")
 195 #+end_src
 196
 197 ** Package management
 198
 199 *** No =package.el=
 200
 201 I can do all my package management things with Borg, and don't need
 202 Emacs' built-in =package.el=. Emacs 27 lets us disable =package.el= in
 203 the =early-init-file= (see [[https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=24acb31c04b4048b85311d794e600ecd7ce60d3b][here]]).
 204
 205 #+begin_src emacs-lisp :tangle early-init.el
 206 (setq package-enable-at-startup nil)
 207 #+end_src
 208
 209 But since Emacs 27 isn't out yet (Emacs 26 is just around the corner
 210 right now), and even when released it'll be long before most distros
 211 ship in their repos, I'll still put the old workaround with the
 212 commented call to ~package-initialize~ here anyway.
 213
 214 #+begin_src emacs-lisp
 215 (setq package-enable-at-startup nil)
 216 ;; (package-initialize)
 217 #+end_src
 218
 219 *** Borg
 220
 221 #+begin_quote
 222 Assimilate Emacs packages as Git submodules
 223 #+end_quote
 224
 225 [[https://github.com/emacscollective/borg][Borg]] is at the heart of package management of my Emacs setup. In
 226 short, it creates a git submodule in =lib/= for each package, which
 227 can then be managed with the help of Magit or other tools.
 228
 229 #+begin_src emacs-lisp
 230 (setq user-init-file (or load-file-name buffer-file-name)
 231       user-emacs-directory (file-name-directory user-init-file))
 232 (add-to-list 'load-path
 233              (expand-file-name "lib/borg" user-emacs-directory))
 234 (require 'borg)
 235 (borg-initialize)
 236
 237 (with-eval-after-load 'bind-key
 238   (bind-keys
 239    :package borg
 240    ("C-c B A" . borg-activate)
 241    ("C-c B a" . borg-assimilate)
 242    ("C-c B b" . borg-build)
 243    ("C-c B c" . borg-clone)))
 244 #+end_src
 245
 246 *** =use-package=
 247
 248 #+begin_quote
 249 A use-package declaration for simplifying your .emacs
 250 #+end_quote
 251
 252 [[https://github.com/jwiegley/use-package][use-package]] is an awesome utility for managing and configuring
 253 packages (in our case especially the latter) in a neatly organized way
 254 and without compromising on performance.
 255
 256 #+begin_src emacs-lisp
 257 (require 'use-package)
 258 (if nil  ; set to t when need to debug init
 259     (setq use-package-verbose t
 260           use-package-expand-minimally nil
 261           use-package-compute-statistics t
 262           debug-on-error t)
 263   (setq use-package-verbose nil
 264         use-package-expand-minimally t))
 265 #+end_src
 266
 267 *** Epkg
 268
 269 #+begin_quote
 270 Browse the Emacsmirror package database
 271 #+end_quote
 272
 273 Epkg provides access to a local copy of the [[https://emacsmirror.net][Emacsmirror]] package
 274 database, low-level functions for querying the database, and a
 275 =package.el=-like user interface for browsing the available packages.
 276
 277 #+begin_src emacs-lisp
 278 (use-package epkg
 279   :defer t
 280   :bind
 281   (("C-c B d" . epkg-describe-package)
 282    ("C-c B p" . epkg-list-packages)
 283    ("C-c B r" . borg-remove)
 284    ("C-c B u" . epkg-update)))
 285 #+end_src
 286
 287 ** No littering in =~/.emacs.d=
 288
 289 #+begin_quote
 290 Help keeping ~/.emacs.d clean
 291 #+end_quote
 292
 293 By default, even for Emacs' built-in packages, the configuration files
 294 and persistent data are all over the place. Use =no-littering= to help
 295 contain the mess.
 296
 297 #+begin_src emacs-lisp
 298 (use-package no-littering
 299   :demand t
 300   :config
 301   (savehist-mode 1)
 302   (add-to-list 'savehist-additional-variables 'kill-ring)
 303   (save-place-mode 1)
 304   (setq auto-save-file-name-transforms
 305         `((".*" ,(no-littering-expand-var-file-name "auto-save/") t))))
 306 #+end_src
 307
 308 ** Custom file (=custom.el=)
 309
 310 I'm not planning on using the custom file much, but even so, I
 311 definitely don't want it mixing with =init.el=. So, here; let's give
 312 it it's own file. While at it, treat themes as safe.
 313
 314 #+begin_src emacs-lisp
 315 (use-package custom
 316   :no-require t
 317   :config
 318   (setq custom-file (no-littering-expand-etc-file-name "custom.el"))
 319   (when (file-exists-p custom-file)
 320     (load custom-file))
 321   (setf custom-safe-themes t))
 322 #+end_src
 323
 324 ** Better =$PATH= handling
 325
 326 Let's use [[https://github.com/purcell/exec-path-from-shell][exec-path-from-shell]] to make Emacs use the =$PATH= as set up
 327 in my shell.
 328
 329 #+begin_src emacs-lisp
 330 (use-package exec-path-from-shell
 331   :defer 1
 332   :init
 333   (setq exec-path-from-shell-check-startup-files nil)
 334   :config
 335   (exec-path-from-shell-initialize)
 336   ;; while we're at it, let's fix access to our running ssh-agent
 337   (exec-path-from-shell-copy-env "SSH_AGENT_PID")
 338   (exec-path-from-shell-copy-env "SSH_AUTH_SOCK"))
 339 #+end_src
 340
 341 ** Only one custom theme at a time
 342
 343 #+begin_src emacs-lisp
 344 (defadvice load-theme (before clear-previous-themes activate)
 345   "Clear existing theme settings instead of layering them"
 346   (mapc #'disable-theme custom-enabled-themes))
 347 #+end_src
 348
 349 ** Server
 350
 351 Start server if not already running. Alternatively, can be done by
 352 issuing =emacs --daemon= in the terminal, which can be automated with
 353 a systemd service or using =brew services start emacs= on macOS. I use
 354 Emacs as my window manager (via EXWM), so I always start Emacs on
 355 login; so starting the server from inside Emacs is good enough for me.
 356
 357 See [[https://www.gnu.org/software/emacs/manual/html_node/emacs/Emacs-Server.html#Emacs-Server][Using Emacs as a Server]].
 358
 359 #+begin_src emacs-lisp
 360 (use-package server
 361   :config (or (server-running-p) (server-mode)))
 362 #+end_src
 363
 364 ** Unicode support
 365
 366 Font stack with better unicode support, around =Ubuntu Mono= and
 367 =Hack=.
 368
 369 #+begin_src emacs-lisp
 370 (dolist (ft (fontset-list))
 371   (set-fontset-font
 372    ft
 373    'unicode
 374    (font-spec :name "Ubuntu Mono"))
 375   (set-fontset-font
 376    ft
 377    'unicode
 378    (font-spec :name "DejaVu Sans Mono")
 379    nil
 380    'append)
 381   ;; (set-fontset-font
 382   ;;  ft
 383   ;;  'unicode
 384   ;;  (font-spec
 385   ;;   :name "Symbola monospacified for DejaVu Sans Mono")
 386   ;;  nil
 387   ;;  'append)
 388   ;; (set-fontset-font
 389   ;;  ft
 390   ;;  #x2115  ; ℕ
 391   ;;  (font-spec :name "DejaVu Sans Mono")
 392   ;;  nil
 393   ;;  'append)
 394   (set-fontset-font
 395    ft
 396    (cons ?Α ?ω)
 397    (font-spec :name "DejaVu Sans Mono" :size 14)
 398    nil
 399    'prepend))
 400 #+end_src
 401
 402 ** Libraries
 403
 404 #+begin_src emacs-lisp
 405 (require 'cl-lib)
 406 (require 'subr-x)
 407 #+end_src
 408
 409 ** Useful utilities
 410
 411 #+begin_src emacs-lisp
 412 (defun amin-enlist (exp)
 413   "Return EXP wrapped in a list, or as-is if already a list."
 414 (if (listp exp) exp (list exp)))
 415
 416 ; from https://github.com/hlissner/doom-emacs/commit/589108fdb270f24a98ba6209f6955fe41530b3ef
 417 (defmacro after! (features &rest body)
 418   "A smart wrapper around `with-eval-after-load'. Supresses warnings during
 419 compilation."
 420   (declare (indent defun) (debug t))
 421   (list (if (or (not (bound-and-true-p byte-compile-current-file))
 422                 (dolist (next (amin-enlist features))
 423                   (if (symbolp next)
 424                       (require next nil :no-error)
 425                     (load next :no-message :no-error))))
 426             #'progn
 427           #'with-no-warnings)
 428         (cond ((symbolp features)
 429                `(eval-after-load ',features '(progn ,@body)))
 430               ((and (consp features)
 431                     (memq (car features) '(:or :any)))
 432                `(progn
 433                   ,@(cl-loop for next in (cdr features)
 434                              collect `(after! ,next ,@body))))
 435               ((and (consp features)
 436                     (memq (car features) '(:and :all)))
 437                (dolist (next (cdr features))
 438                  (setq body `(after! ,next ,@body)))
 439                body)
 440               ((listp features)
 441                `(after! (:all ,@features) ,@body)))))
 442 #+end_src
 443
 444 * Core
 445 :PROPERTIES:
 446 :CUSTOM_ID: core
 447 :END:
 448
 449 ** Defaults
 450
 451 *** Time and battery in mode-line
 452
 453 Enable displaying time and battery in the mode-line, since I'm not
 454 using the Xfce panel anymore. Also, I don't need to see the load
 455 average on a regular basis, so disable that.
 456
 457 Note: using =i3status= on sway at the moment, so disabling this.
 458
 459 #+begin_src emacs-lisp :tangle no
 460 (use-package time
 461   :init
 462   (setq display-time-default-load-average nil)
 463   :config
 464   (display-time-mode))
 465
 466 (use-package battery
 467   :config
 468   (display-battery-mode))
 469 #+end_src
 470
 471 *** Smaller fringe
 472
 473 Might want to set the fringe to a smaller value, especially if using
 474 EXWM. I'm fine with the default for now.
 475
 476 #+begin_src emacs-lisp
 477 ;; (fringe-mode '(3 . 1))
 478 (fringe-mode nil)
 479 #+end_src
 480
 481 *** Disable disabled commands
 482
 483 Emacs disables some commands by default that could persumably be
 484 confusing for novice users. Let's disable that.
 485
 486 #+begin_src emacs-lisp
 487 (setq disabled-command-function nil)
 488 #+end_src
 489
 490 *** Kill-ring
 491
 492 Save what I copy into clipboard from other applications into Emacs'
 493 kill-ring, which would allow me to still be able to easily access it
 494 in case I kill (cut or copy) something else inside Emacs before
 495 yanking (pasting) what I'd originally intended to.
 496
 497 #+begin_src emacs-lisp
 498 (setq save-interprogram-paste-before-kill t)
 499 #+end_src
 500
 501 *** Minibuffer
 502
 503 #+begin_src emacs-lisp
 504 (setq enable-recursive-minibuffers t
 505       resize-mini-windows t)
 506 #+end_src
 507
 508 *** Lazy-person-friendly yes/no prompts
 509
 510 Lazy people would prefer to type fewer keystrokes, especially for yes
 511 or no questions. I'm lazy.
 512
 513 #+begin_src emacs-lisp
 514 (defalias 'yes-or-no-p #'y-or-n-p)
 515 #+end_src
 516
 517 *** Startup screen and =*scratch*=
 518
 519 Firstly, let Emacs know that I'd like to have =*scratch*= as my
 520 startup buffer.
 521
 522 #+begin_src emacs-lisp
 523 (setq initial-buffer-choice t)
 524 #+end_src
 525
 526 Now let's customize the =*scratch*= buffer a bit. First off, I don't
 527 need the default hint.
 528
 529 #+begin_src emacs-lisp
 530 (setq initial-scratch-message nil)
 531 #+end_src
 532
 533 Also, let's use Text mode as the major mode, in case I want to
 534 customize it (=*scratch*='s default major mode, Fundamental mode,
 535 can't really be customized).
 536
 537 #+begin_src emacs-lisp
 538 (setq initial-major-mode 'text-mode)
 539 #+end_src
 540
 541 Inhibit the buffer list when more than 2 files are loaded.
 542
 543 #+begin_src emacs-lisp
 544 (setq inhibit-startup-buffer-menu t)
 545 #+end_src
 546
 547 I don't really need to see the startup screen or echo area message
 548 either.
 549
 550 #+begin_src emacs-lisp
 551 (advice-add #'display-startup-echo-area-message :override #'ignore)
 552 (setq inhibit-startup-screen t
 553       inhibit-startup-echo-area-message user-login-name)
 554 #+end_src
 555
 556 *** More useful frame titles
 557
 558 Show either the file name or the buffer name (in case the buffer isn't
 559 visiting a file). Borrowed from Emacs Prelude.
 560
 561 #+begin_src emacs-lisp
 562 (setq frame-title-format
 563       '("" invocation-name " - "
 564         (:eval (if (buffer-file-name)
 565                    (abbreviate-file-name (buffer-file-name))
 566                  "%b"))))
 567 #+end_src
 568
 569 *** Backups
 570
 571 Emacs' default backup settings aren't that great. Let's use more
 572 sensible options. See documentation for the ~make-backup-file~
 573 variable.
 574
 575 #+begin_src emacs-lisp
 576 (setq backup-by-copying t
 577       version-control t)
 578 #+end_src
 579
 580 *** Auto revert
 581
 582 Enable automatic reloading of changed buffers and files.
 583
 584 #+begin_src emacs-lisp
 585 (global-auto-revert-mode 1)
 586 (setq auto-revert-verbose nil
 587       global-auto-revert-non-file-buffers t)
 588 #+end_src
 589
 590 *** Always use space for indentation
 591
 592 #+begin_src emacs-lisp
 593 (setq-default
 594  indent-tabs-mode nil
 595  require-final-newline t
 596  tab-width 4)
 597 #+end_src
 598
 599 *** Winner mode
 600
 601 Enable =winner-mode=.
 602
 603 #+begin_src emacs-lisp
 604 (winner-mode 1)
 605 #+end_src
 606
 607 ** Bindings
 608
 609 #+begin_src emacs-lisp
 610 (bind-keys
 611  ("C-c b B" . ibuffer-list-buffers)
 612  ("C-c b k" . kill-this-buffer)
 613  ("C-c b s" . save-buffer)
 614  ("C-c S"   . save-buffer)
 615  ("C-c o"   . other-window)
 616  ("C-c q q" . save-buffers-kill-terminal))
 617 #+end_src
 618
 619 ** Packages
 620
 621 The packages in this section are absolutely essential to my everyday
 622 workflow, and they play key roles in how I do my computing. They
 623 immensely enhance the Emacs experience for me; both using Emacs, and
 624 customizing it.
 625
 626 *** [[https://github.com/emacscollective/auto-compile][auto-compile]]
 627
 628 #+begin_src emacs-lisp
 629 (use-package auto-compile
 630   :demand t
 631   :config
 632   (auto-compile-on-load-mode)
 633   (auto-compile-on-save-mode)
 634   (setq auto-compile-display-buffer               nil
 635         auto-compile-mode-line-counter            t
 636         auto-compile-source-recreate-deletes-dest t
 637         auto-compile-toggle-deletes-nonlib-dest   t
 638         auto-compile-update-autoloads             t)
 639   (add-hook 'auto-compile-inhibit-compile-hook
 640             'auto-compile-inhibit-compile-detached-git-head))
 641 #+end_src
 642
 643 *** [[https://orgmode.org/][Org mode]]
 644
 645 #+begin_quote
 646 Org mode is for keeping notes, maintaining TODO lists, planning
 647 projects, and authoring documents with a fast and effective plain-text
 648 system.
 649 #+end_quote
 650
 651 In short, my favourite way of life.
 652
 653 #+begin_src emacs-lisp
 654 (use-package org
 655   :config
 656   (setq org-src-tab-acts-natively t
 657         org-src-preserve-indentation nil
 658         org-edit-src-content-indentation 0)
 659   :hook (org-mode . org-indent-mode))
 660
 661 (use-package org-notmuch
 662   :after (:any org notmuch))
 663 #+end_src
 664
 665 *** [[https://magit.vc/][Magit]]
 666
 667 #+begin_quote
 668 It's Magit! A Git porcelain inside Emacs.
 669 #+end_quote
 670
 671 Not just how I do git, but /the/ way to do git.
 672
 673 #+begin_src emacs-lisp
 674 (use-package magit
 675   :defer t
 676   :bind
 677   (("s-g"   . magit-dispatch-popup)
 678    ("C-x g" . magit-status)
 679    :prefix-map amin--magit-prefix-map
 680    :prefix "C-c g"
 681    ("SPC" . magit-status)
 682    ("s"   . magit-status)
 683    ("S"   . magit-status-prefix)
 684    ("B"   . magit-blame)
 685    ("C"   . magit-clone)
 686    ("f"   . magit-fetch)
 687    ("F"   . magit-pull)
 688    ("P"   . magit-push)
 689    ("p"   . magit-dispatch-popup)
 690    ("c c" . magit-commit)
 691    ("c a" . magit-commit-amend)
 692    ("b b" . magit-checkout)
 693    ("b c" . magit-branch))
 694   :config
 695   (magit-add-section-hook 'magit-status-sections-hook
 696                           'magit-insert-modules
 697                           'magit-insert-stashes
 698                           'append))
 699 #+end_src
 700
 701 *** [[https://github.com/abo-abo/swiper][Ivy]] (and friends)
 702
 703 #+begin_quote
 704 Ivy - a generic completion frontend for Emacs, Swiper - isearch with
 705 an overview, and more. Oh, man!
 706 #+end_quote
 707
 708 There's no way I could top that, so I won't attempt to.
 709
 710 **** Ivy
 711
 712 #+begin_src emacs-lisp
 713 (use-package ivy
 714   :defer 1
 715   :bind
 716   (("C-c b b" . ivy-switch-buffer)
 717    :map ivy-minibuffer-map
 718    ([escape] . keyboard-escape-quit)
 719    ([S-up]   . ivy-previous-history-element)
 720    ([S-down] . ivy-next-history-element)
 721    ("DEL"    . ivy-backward-delete-char))
 722   :config
 723   (setq ivy-wrap t)
 724   (ivy-mode 1))
 725 #+end_src
 726
 727 **** Swiper
 728
 729 #+begin_src emacs-lisp
 730 (use-package swiper
 731   :bind (([remap isearch-forward]  . swiper)
 732          ([remap isearch-backward] . swiper)))
 733 #+end_src
 734
 735 **** Counsel
 736
 737 #+begin_src emacs-lisp
 738 (use-package counsel
 739   :defer 1
 740   :bind (([remap execute-extended-command] . counsel-M-x)
 741          ([remap find-file]                . counsel-find-file)
 742          ("s-r"                            . counsel-recentf)
 743          ("C-c x"                          . counsel-M-x)
 744          ("C-c f ."                        . counsel-find-file)
 745          ("C-c f r"                        . counsel-recentf)
 746          :map minibuffer-local-map
 747          ("C-r" . counsel-minibuffer-history))
 748   :config
 749   (counsel-mode 1)
 750   (defalias 'locate #'counsel-locate))
 751 #+end_src
 752
 753 * Borg's =layer/essentials=
 754
 755 TODO: break this giant source block down into individual org sections.
 756
 757 #+begin_src emacs-lisp
 758 (use-package dash
 759   :config (dash-enable-font-lock))
 760
 761 (use-package diff-hl
 762   :config
 763   (setq diff-hl-draw-borders nil)
 764   (global-diff-hl-mode)
 765   (add-hook 'magit-post-refresh-hook 'diff-hl-magit-post-refresh t))
 766
 767 (use-package dired
 768   :defer t
 769   :config (setq dired-listing-switches "-alh"))
 770
 771 (use-package eldoc
 772   :when (version< "25" emacs-version)
 773   :config (global-eldoc-mode))
 774
 775 (use-package help
 776   :defer t
 777   :config (temp-buffer-resize-mode))
 778
 779 (progn ;    `isearch'
 780   (setq isearch-allow-scroll t))
 781
 782 (use-package lisp-mode
 783   :config
 784   (add-hook 'emacs-lisp-mode-hook 'outline-minor-mode)
 785   (add-hook 'emacs-lisp-mode-hook 'reveal-mode)
 786   (defun indent-spaces-mode ()
 787     (setq indent-tabs-mode nil))
 788   (add-hook 'lisp-interaction-mode-hook #'indent-spaces-mode))
 789
 790 (use-package man
 791   :defer t
 792   :config (setq Man-width 80))
 793
 794 (use-package paren
 795   :config (show-paren-mode))
 796
 797 (use-package prog-mode
 798   :config (global-prettify-symbols-mode)
 799   (defun indicate-buffer-boundaries-left ()
 800     (setq indicate-buffer-boundaries 'left))
 801   (add-hook 'prog-mode-hook #'indicate-buffer-boundaries-left))
 802
 803 (use-package recentf
 804   :demand t
 805   :config (add-to-list 'recentf-exclude "^/\\(?:ssh\\|su\\|sudo\\)?:"))
 806
 807 (use-package savehist
 808   :config (savehist-mode))
 809
 810 (use-package saveplace
 811   :when (version< "25" emacs-version)
 812   :config (save-place-mode))
 813
 814 (use-package simple
 815   :config (column-number-mode))
 816
 817 (progn ;    `text-mode'
 818   (add-hook 'text-mode-hook #'indicate-buffer-boundaries-left))
 819
 820 (use-package tramp
 821   :defer t
 822   :config
 823   (add-to-list 'tramp-default-proxies-alist '(nil "\\`root\\'" "/ssh:%h:"))
 824   (add-to-list 'tramp-default-proxies-alist '("localhost" nil nil))
 825   (add-to-list 'tramp-default-proxies-alist
 826                (list (regexp-quote (system-name)) nil nil)))
 827
 828 (use-package undo-tree
 829   :bind (("C-?" . undo-tree-undo)
 830          ("M-_" . undo-tree-redo))
 831   :config
 832   (global-undo-tree-mode)
 833   (setq undo-tree-mode-lighter ""
 834         undo-tree-auto-save-history t))
 835 #+end_src
 836
 837 * Editing
 838
 839 ** Company
 840
 841 #+begin_src emacs-lisp
 842 (use-package company
 843   :defer 5
 844   :bind
 845   (:map company-active-map
 846         ([tab] . company-complete-common-or-cycle))
 847   :custom
 848   (company-idle-delay 0.3)
 849   (company-minimum-prefix-length 1)
 850   (company-selection-wrap-around t)
 851   (company-dabbrev-char-regexp "\\sw\\|\\s_\\|[-_]")
 852   :config
 853   (global-company-mode t))
 854 #+end_src
 855
 856 * Syntax and spell checking
 857 #+begin_src emacs-lisp
 858 (use-package flycheck
 859   :hook (prog-mode . flycheck-mode)
 860   :config
 861   ;; Use the load-path from running Emacs when checking elisp files
 862   (setq flycheck-emacs-lisp-load-path 'inherit)
 863
 864   ;; Only flycheck when I actually save the buffer
 865   (setq flycheck-check-syntax-automatically '(mode-enabled save)))
 866 #+end_src
 867 * Programming modes
 868
 869 ** [[http://alloytools.org][Alloy]] (with [[https://github.com/dwwmmn/alloy-mode][alloy-mode]])
 870
 871 #+begin_src emacs-lisp
 872 (use-package alloy-mode
 873   :config (setq alloy-basic-offset 2))
 874 #+end_src
 875
 876 ** [[https://coq.inria.fr][Coq]] (with [[https://github.com/ProofGeneral/PG][Proof General]])
 877
 878 #+begin_src emacs-lisp
 879 (use-package proof-site  ; Proof General
 880   :load-path "lib/proof-site/generic/")
 881 #+end_src
 882
 883 ** [[https://leanprover.github.io][Lean]] (with [[https://github.com/leanprover/lean-mode][lean-mode]])
 884
 885 #+begin_src emacs-lisp
 886 (use-package lean-mode
 887   :bind (:map lean-mode-map
 888               ("S-SPC" . company-complete)))
 889 #+end_src
 890
 891 ** Haskell
 892
 893 *** [[https://github.com/haskell/haskell-mode][haskell-mode]]
 894
 895 #+begin_src emacs-lisp
 896 (use-package haskell-mode
 897   :config
 898   (setq haskell-indentation-layout-offset 4
 899         haskell-indentation-left-offset 4
 900         flycheck-checker 'haskell-hlint
 901         flycheck-disabled-checkers '(haskell-stack-ghc haskell-ghc)))
 902 #+end_src
 903
 904 *** [[https://github.com/jyp/dante][dante]]
 905
 906 #+begin_src emacs-lisp
 907 (use-package dante
 908   :after haskell-mode
 909   :commands dante-mode
 910   :hook (haskell-mode . dante-mode))
 911 #+end_src
 912
 913 *** [[https://github.com/mpickering/hlint-refactor-mode][hlint-refactor]]
 914
 915 Emacs bindings for [[https://github.com/ndmitchell/hlint][hlint]]'s refactor option. This requires the refact
 916 executable from [[https://github.com/mpickering/apply-refact][apply-refact]].
 917
 918 #+begin_src emacs-lisp
 919 (use-package hlint-refactor
 920   :bind (:map hlint-refactor-mode-map
 921               ("C-c l b" . hlint-refactor-refactor-buffer)
 922               ("C-c l r" . hlint-refactor-refactor-at-point))
 923   :hook (haskell-mode . hlint-refactor-mode))
 924 #+end_src
 925
 926 *** [[https://github.com/flycheck/flycheck-haskell][flycheck-haskell]]
 927
 928 #+begin_src emacs-lisp
 929 (use-package flycheck-haskell)
 930 #+end_src
 931
 932 *** [[https://github.com/ndmitchell/hlint/blob/20e116a043f2073c57b17b24ae6364b5e433ba7e/data/hs-lint.el][hs-lint.el]]
 933 :PROPERTIES:
 934 :header-args+: :tangle lisp/hs-lint.el :mkdirp yes
 935 :END:
 936
 937 Currently using =flycheck-haskell= with the =haskell-hlint= checker
 938 instead.
 939
 940 #+begin_src emacs-lisp :tangle no
 941 ;;; hs-lint.el --- minor mode for HLint code checking
 942
 943 ;; Copyright 2009 (C) Alex Ott
 944 ;;
 945 ;; Author: Alex Ott <alexott@gmail.com>
 946 ;; Keywords: haskell, lint, HLint
 947 ;; Requirements:
 948 ;; Status: distributed under terms of GPL2 or above
 949
 950 ;; Typical message from HLint looks like:
 951 ;;
 952 ;; /Users/ott/projects/lang-exp/haskell/test.hs:52:1: Eta reduce
 953 ;; Found:
 954 ;;   count1 p l = length (filter p l)
 955 ;; Why not:
 956 ;;   count1 p = length . filter p
 957
 958
 959 (require 'compile)
 960
 961 (defgroup hs-lint nil
 962   "Run HLint as inferior of Emacs, parse error messages."
 963   :group 'tools
 964   :group 'haskell)
 965
 966 (defcustom hs-lint-command "hlint"
 967   "The default hs-lint command for \\[hlint]."
 968   :type 'string
 969   :group 'hs-lint)
 970
 971 (defcustom hs-lint-save-files t
 972   "Save modified files when run HLint or no (ask user)"
 973   :type 'boolean
 974   :group 'hs-lint)
 975
 976 (defcustom hs-lint-replace-with-suggestions nil
 977   "Replace user's code with suggested replacements"
 978   :type 'boolean
 979   :group 'hs-lint)
 980
 981 (defcustom hs-lint-replace-without-ask nil
 982   "Replace user's code with suggested replacements automatically"
 983   :type 'boolean
 984   :group 'hs-lint)
 985
 986 (defun hs-lint-process-setup ()
 987   "Setup compilation variables and buffer for `hlint'."
 988   (run-hooks 'hs-lint-setup-hook))
 989
 990 ;; regex for replace suggestions
 991 ;;
 992 ;; ^\(.*?\):\([0-9]+\):\([0-9]+\): .*
 993 ;; Found:
 994 ;; \s +\(.*\)
 995 ;; Why not:
 996 ;; \s +\(.*\)
 997
 998 (defvar hs-lint-regex
 999   "^\\(.*?\\):\\([0-9]+\\):\\([0-9]+\\): .*[\n\C-m]Found:[\n\C-m]\\s +\\(.*\\)[\n\C-m]Why not:[\n\C-m]\\s +\\(.*\\)[\n\C-m]"
1000   "Regex for HLint messages")
1001
1002 (defun make-short-string (str maxlen)
1003   (if (< (length str) maxlen)
1004       str
1005     (concat (substring str 0 (- maxlen 3)) "...")))
1006
1007 (defun hs-lint-replace-suggestions ()
1008   "Perform actual replacement of suggestions"
1009   (goto-char (point-min))
1010   (while (re-search-forward hs-lint-regex nil t)
1011     (let* ((fname (match-string 1))
1012           (fline (string-to-number (match-string 2)))
1013           (old-code (match-string 4))
1014           (new-code (match-string 5))
1015           (msg (concat "Replace '" (make-short-string old-code 30)
1016                        "' with '" (make-short-string new-code 30) "'"))
1017           (bline 0)
1018           (eline 0)
1019           (spos 0)
1020           (new-old-code ""))
1021       (save-excursion
1022         (switch-to-buffer (get-file-buffer fname))
1023         (goto-char (point-min))
1024         (forward-line (1- fline))
1025         (beginning-of-line)
1026         (setf bline (point))
1027         (when (or hs-lint-replace-without-ask
1028                   (yes-or-no-p msg))
1029           (end-of-line)
1030           (setf eline (point))
1031           (beginning-of-line)
1032           (setf old-code (regexp-quote old-code))
1033           (while (string-match "\\\\ " old-code spos)
1034             (setf new-old-code (concat new-old-code
1035                                  (substring old-code spos (match-beginning 0))
1036                                  "\\ *"))
1037             (setf spos (match-end 0)))
1038           (setf new-old-code (concat new-old-code (substring old-code spos)))
1039           (remove-text-properties bline eline '(composition nil))
1040           (when (re-search-forward new-old-code eline t)
1041             (replace-match new-code nil t)))))))
1042
1043 (defun hs-lint-finish-hook (buf msg)
1044   "Function, that is executed at the end of HLint execution"
1045   (if hs-lint-replace-with-suggestions
1046       (hs-lint-replace-suggestions)
1047       (next-error 1 t)))
1048
1049 (define-compilation-mode hs-lint-mode "HLint"
1050   "Mode for check Haskell source code."
1051   (set (make-local-variable 'compilation-process-setup-function)
1052        'hs-lint-process-setup)
1053   (set (make-local-variable 'compilation-disable-input) t)
1054   (set (make-local-variable 'compilation-scroll-output) nil)
1055   (set (make-local-variable 'compilation-finish-functions)
1056        (list 'hs-lint-finish-hook))
1057   )
1058
1059 (defun hs-lint ()
1060   "Run HLint for current buffer with haskell source"
1061   (interactive)
1062   (save-some-buffers hs-lint-save-files)
1063   (compilation-start (concat hs-lint-command " \"" buffer-file-name "\"")
1064                      'hs-lint-mode))
1065
1066 (provide 'hs-lint)
1067 ;;; hs-lint.el ends here
1068 #+end_src
1069
1070 #+begin_src emacs-lisp :tangle no
1071 (use-package hs-lint
1072   :load-path "lisp/"
1073   :bind (:map haskell-mode-map
1074               ("C-c l l" . hs-lint)))
1075 #+end_src
1076 * Emacs Enhancements
1077
1078 ** [[https://github.com/justbur/emacs-which-key][which-key]]
1079
1080 #+begin_quote
1081 Emacs package that displays available keybindings in popup
1082 #+end_quote
1083
1084 #+begin_src emacs-lisp
1085 (use-package which-key
1086   :defer 1
1087   :config (which-key-mode))
1088 #+end_src
1089
1090 ** [[https://github.com/seagle0128/doom-modeline][doom-modeline]]
1091
1092 #+begin_src emacs-lisp
1093 (use-package doom-modeline
1094   :demand t
1095   :config (setq doom-modeline-height 32)
1096   :hook (after-init . doom-modeline-init))
1097 #+end_src
1098
1099 ** [[https://github.com/11111000000/tao-theme-emacs][tao-theme]]
1100
1101 #+begin_src emacs-lisp :tangle no
1102 (use-package tao-theme
1103   :demand t
1104   :config (load-theme 'tao-yang t))
1105 #+end_src
1106
1107 ** [[https://github.com/maio/eink-emacs][eink-theme]]
1108
1109 #+begin_src emacs-lisp
1110 (load-theme 'eink t)
1111 #+end_src
1112
1113 ** [[https://github.com/bbatsov/crux][crux]]
1114
1115 #+begin_src emacs-lisp
1116 (use-package crux
1117   :bind (("C-c d"   . crux-duplicate-current-line-or-region)
1118          ("C-c M-d" . crux-duplicate-and-comment-current-line-or-region)
1119          ("C-c b K" . crux-kill-other-buffers)
1120          ("C-c f c" . crux-copy-file-preserve-attributes)
1121          ("C-c f D" . crux-delete-file-and-buffer)
1122          ("C-c f R" . crux-rename-file-and-buffer)))
1123 #+end_src
1124
1125 ** [[https://github.com/alezost/mwim.el][mwim]]
1126
1127 #+begin_src emacs-lisp
1128 (use-package mwim
1129   :bind (("C-a"    . mwim-beginning-of-code-or-line)
1130          ("C-e"    . mwim-end-of-code-or-line)
1131          ("<home>" . mwim-beginning-of-line-or-code)
1132          ("<end>"  . mwim-end-of-line-or-code)))
1133 #+end_src
1134
1135 ** projectile
1136
1137 #+begin_src emacs-lisp
1138 (use-package projectile
1139   :defer 5
1140   :bind-keymap ("C-c p" . projectile-command-map)
1141   :config
1142   (projectile-global-mode)
1143
1144   (defun my-projectile-invalidate-cache (&rest _args)
1145     ;; ignore the args to `magit-checkout'
1146     (projectile-invalidate-cache nil))
1147
1148   (eval-after-load 'magit-branch
1149     '(progn
1150        (advice-add 'magit-checkout
1151                    :after #'my-projectile-invalidate-cache)
1152        (advice-add 'magit-branch-and-checkout
1153                    :after #'my-projectile-invalidate-cache))))
1154 #+end_src
1155
1156 * Email
1157 ** [[https://notmuchmail.org][notmuch]]
1158
1159 See [[notmuch:id:87muuqsvci.fsf@fencepost.gnu.org][bug follow-up]].
1160
1161 #+begin_src emacs-lisp
1162 (defvar amin-maildir "~/mail")
1163
1164 (use-package sendmail
1165   ;; :ensure nil
1166   :config
1167   (setq sendmail-program "/usr/bin/msmtp"
1168         ; message-sendmail-extra-arguments '("-v" "-d")
1169         mail-specify-envelope-from t
1170         mail-envelope-from 'header))
1171
1172 (use-package message
1173   ;; :ensure nil
1174   :config
1175   (setq message-kill-buffer-on-exit t
1176         message-send-mail-function 'message-send-mail-with-sendmail
1177         message-sendmail-envelope-from 'header
1178         message-directory "drafts"
1179         message-user-fqdn "aminb.org")
1180   (add-hook 'message-mode-hook
1181             (lambda () (setq fill-column 65
1182                         message-fill-column 65)))
1183   (add-hook 'message-mode-hook
1184             #'flyspell-mode)
1185   ;; (add-hook 'notmuch-message-mode-hook #'+doom-modeline|set-special-modeline)
1186   ;; TODO: is there a way to only run this when replying and not composing?
1187   ;; (add-hook 'notmuch-message-mode-hook
1188   ;;           (lambda () (progn
1189   ;;                   (newline)
1190   ;;                   (newline)
1191   ;;                   (forward-line -1)
1192   ;;                   (forward-line -1))))
1193   ;; (add-hook 'message-setup-hook
1194   ;;           #'mml-secure-message-sign-pgpmime)
1195   )
1196
1197 (after! mml-sec
1198   (setq mml-secure-openpgp-encrypt-to-self t
1199         mml-secure-openpgp-sign-with-sender t))
1200
1201 (defun amin/notmuch ()
1202   "Delete other windows, then launch `notmuch'."
1203   (interactive)
1204   (delete-other-windows)
1205   (notmuch))
1206
1207 (use-package notmuch
1208   :commands notmuch
1209   :bind ("C-c m" . amin/notmuch)
1210   :config
1211   (setq notmuch-hello-sections
1212         '(notmuch-hello-insert-header
1213           notmuch-hello-insert-saved-searches
1214           ;; notmuch-hello-insert-search
1215           notmuch-hello-insert-alltags)
1216         notmuch-search-oldest-first nil
1217         notmuch-show-all-tags-list t
1218         notmuch-message-headers  ; see bug follow-up above
1219         '("Subject" "To" "Cc" "Date" "List-Id" "X-RT-Originator")
1220         notmuch-hello-thousands-separator ","
1221         notmuch-fcc-dirs
1222         '(("amin@aminb.org"        . "amin/Sent")
1223           ("amin@gnu.org"          . "gnu/Sent")
1224           ("abandali@uwaterloo.ca" . "\"uwaterloo/Sent Items\"")
1225           ("mab@gnu.org"           . "gnu/Sent")
1226           ("aminb@gnu.org"         . "gnu/Sent")
1227           (".*"                    . "sent"))
1228         notmuch-search-result-format
1229         '(("date"    . "%12s ")
1230           ("count"   . "%-7s ")
1231           ("authors" . "%-40s ")
1232           ("subject" . "%s ")
1233           ("tags"    . "(%s)"))
1234         notmuch-saved-searches
1235         '((:name "inbox"     :query "tag:inbox"     :key "i")
1236           (:name "unread"    :query "tag:unread"    :key "u")
1237           (:name "latest"    :query "tag:latest"    :key "l")
1238           (:name "encrypted" :query "tag:encrypted" :key "e")
1239           (:name "flagged"   :query "tag:flagged"   :key "f")
1240           (:name "sent"      :query "tag:sent"      :key "s")
1241           (:name "drafts"    :query "tag:draft"     :key "d")
1242           (:name "all mail"  :query "*"             :key "a")))
1243   ;; (add-hook 'visual-fill-column-mode-hook
1244   ;;           (lambda ()
1245   ;;             (when (string= major-mode 'notmuch-message-mode)
1246   ;;               (setq visual-fill-column-width 70))))
1247   ;; (set! :evil-state 'notmuch-message-mode 'insert)
1248   ;; (advice-add #'notmuch-bury-or-kill-this-buffer
1249   ;;             :override #'kill-this-buffer)
1250   ;; (evil-collection-define-key 'normal 'notmuch-common-keymap
1251   ;;   "c" (lambda ()
1252   ;;         "Compose new mail and prompt for sender"
1253   ;;         (interactive)
1254   ;;         (let ((current-prefix-arg t))
1255   ;;           (call-interactively #'notmuch-mua-new-mail))))
1256   :bind
1257   (:map notmuch-search-mode-map
1258         ("k" . (lambda ()
1259                  "Mark message read"
1260                  (interactive)
1261                  (notmuch-search-tag '("-unread"))
1262                  ;; (notmuch-search-archive-thread)
1263                  (notmuch-search-next-thread)))
1264         ("u" . (lambda ()
1265                  "Mark message unread"
1266                  (interactive)
1267                  (notmuch-search-tag '("+unread"))
1268                  (notmuch-search-next-thread)))
1269         ("K" . (lambda ()
1270                  "Mark message deleted"
1271                  (interactive)
1272                  (notmuch-search-tag '("-unread" "-inbox" "+deleted"))
1273                  (notmuch-search-archive-thread)))
1274         ("S" . (lambda ()
1275                  "Mark message as spam"
1276                  (interactive)
1277                  (notmuch-search-tag '("-unread" "-inbox" "-webmasters" "+spam"))
1278                  (notmuch-search-archive-thread))))
1279   (:map notmuch-tree-mode-map  ; TODO: additional bindings
1280         ("S" . (lambda ()
1281                  "Mark message as spam"
1282                  (interactive)
1283                  (notmuch-tree-tag '("-unread" "-inbox" "-webmasters" "+spam"))
1284                  (notmuch-tree-archive-thread))))
1285 )
1286
1287 (use-package counsel-notmuch
1288   :bind ("C-c s m" . counsel-notmuch))
1289
1290 (after! notmuch-crypto
1291   (setq notmuch-crypto-process-mime t))
1292
1293 (after! recentf
1294   (add-to-list 'recentf-exclude (expand-file-name amin-maildir)))
1295 #+end_src
1296
1297 ** supercite
1298
1299 #+begin_src emacs-lisp :tangle no
1300 (use-package supercite
1301   :commands sc-cite-original
1302   :init
1303   (add-hook 'mail-citation-hook 'sc-cite-original)
1304
1305   (defun sc-remove-existing-signature ()
1306     (save-excursion
1307       (goto-char (region-beginning))
1308       (when (re-search-forward message-signature-separator (region-end) t)
1309         (delete-region (match-beginning 0) (region-end)))))
1310
1311   (add-hook 'mail-citation-hook 'sc-remove-existing-signature)
1312
1313   (defun sc-remove-if-not-mailing-list ()
1314     (unless (assoc "list-id" sc-mail-info)
1315       (setq attribution sc-default-attribution
1316             citation (concat sc-citation-delimiter
1317                              sc-citation-separator))))
1318
1319   (add-hook 'sc-attribs-postselect-hook 'sc-remove-if-not-mailing-list)
1320
1321   :config
1322   (defun sc-fill-if-different (&optional prefix)
1323     "Fill the region bounded by `sc-fill-begin' and point.
1324 Only fill if optional PREFIX is different than
1325 `sc-fill-line-prefix'.  If `sc-auto-fill-region-p' is nil, do not
1326 fill region.  If PREFIX is not supplied, initialize fill
1327 variables.  This is useful for a regi `begin' frame-entry."
1328     (if (not prefix)
1329         (setq sc-fill-line-prefix ""
1330               sc-fill-begin (line-beginning-position))
1331       (if (and sc-auto-fill-region-p
1332                (not (string= prefix sc-fill-line-prefix)))
1333           (let ((fill-prefix sc-fill-line-prefix))
1334             (unless (or (string= fill-prefix "")
1335                         (save-excursion
1336                           (goto-char sc-fill-begin)
1337                           (or (looking-at ">+  +")
1338                               (< (length
1339                                   (buffer-substring (point)
1340                                                     (line-end-position)))
1341                                  65))))
1342               (fill-region sc-fill-begin (line-beginning-position)))
1343             (setq sc-fill-line-prefix prefix
1344                   sc-fill-begin (line-beginning-position)))))
1345 nil))
1346 #+end_src
1347
1348 * Blogging
1349 ** [[https://ox-hugo.scripter.co][ox-hugo]]
1350
1351 #+begin_src emacs-lisp
1352 (use-package ox-hugo
1353   :after ox)
1354 #+end_src
1355
1356 * Post initialization
1357 :PROPERTIES:
1358 :CUSTOM_ID: post-initialization
1359 :END:
1360
1361 Display how long it took to load the init file.
1362
1363 #+begin_src emacs-lisp
1364 (message "Loading %s...done (%.3fs)" user-init-file
1365          (float-time (time-subtract (current-time)
1366                                     amin--before-user-init-time)))
1367 #+end_src
1368
1369 * Footer
1370 :PROPERTIES:
1371 :CUSTOM_ID: footer
1372 :END:
1373
1374 #+begin_src emacs-lisp :comments none
1375 ;;; init.el ends here
1376 #+end_src