[emacs] update 11 drones
[~bandali/configs] / init.org
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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
11This org file is my literate configuration for GNU Emacs, and is
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12tangled 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
14many different people. Some of the configurations that I can remember
15off 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]]
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27
28I'd like to have a fully reproducible Emacs setup (part of the reason
29why I store my configuration in this repository) but unfortunately out
30of the box, that's not achievable with =package.el=, not currently
31anyway. So, I've opted to use Borg. For what it's worth, I briefly
32experimented with [[https://github.com/raxod502/straight.el][straight.el]], but found that it added about 2 seconds
33to my init time; which is unacceptable for me: I use Emacs as my
34window manager (via EXWM) and coming from bspwm, I'm too used to
35having fast startup times.
36
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37** Installation
38
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39To use this config for your Emacs, first you need to clone this repo,
40then bootstrap Borg, tell Borg to retrieve package submodules, and
41byte-compiled the packages. Something along these lines should work:
42
4b4e432d 43#+begin_src sh :tangle no
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44git clone https://github.com/aminb/dotfiles ~/.emacs.d
45cd ~/.emacs.d
46make bootstrap-borg
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47make bootstrap
48make build
49#+end_src
50
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51* Contents :toc_1:noexport:
52
53- [[#about][About]]
54- [[#header][Header]]
55- [[#initial-setup][Initial setup]]
56- [[#core][Core]]
967b0a82 57- [[#post-initialization][Post initialization]]
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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
71Enable =view-mode=, which both makes the file read-only (as a reminder
72that =init.el= is an auto-generated file, not supposed to be edited),
73and provides some convenient key bindings for browsing through the
74file.
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
108The conventions below were inspired by [[https://github.com/hlissner/doom-emacs][Doom]]'s conventions, found
109[[https://github.com/hlissner/doom-emacs/blob/5dacbb7cb1c6ac246a9ccd15e6c4290def67757c/core/core.el#L3-L17][here]]. Naturally, I use my initials, =ab=, instead of =doom=.
110
111#+begin_src emacs-lisp :comments none
112;; Naming conventions:
113;;
114;; ab-... public variables or non-interactive functions
115;; ab--... private anything (non-interactive), not safe for direct use
116;; ab/... an interactive function; safe for M-x or keybinding
117;; ab:... an evil operator, motion, or command
118;; ab|... a hook function
119;; ab*... an advising function
120;; ab@... a hydra command
121;; ...! a macro
122#+end_src
123
124* Initial setup
125:PROPERTIES:
126:CUSTOM_ID: initial-setup
127:END:
128
129#+begin_src emacs-lisp :comments none
130;;; Code:
131#+end_src
132
133** Emacs initialization
134
135I'd like to do a couple of measurements of Emacs' startup time. First,
136let's see how long Emacs takes to start up, before even loading
137=init.el=, i.e. =user-init-file=:
138
139#+begin_src emacs-lisp
140(defvar ab--before-user-init-time (current-time)
141 "Value of `current-time' when Emacs begins loading `user-init-file'.")
142(message "Loading Emacs...done (%.3fs)"
143 (float-time (time-subtract ab--before-user-init-time
144 before-init-time)))
145#+end_src
146
147Also, temporarily increase ~gc-cons-threshhold~ and
148~gc-cons-percentage~ during startup to reduce garbage collection
149frequency. Clearing the ~file-name-handler-alist~ seems to help reduce
150startup time as well.
151
152#+begin_src emacs-lisp
153(defvar ab--gc-cons-threshold gc-cons-threshold)
154(defvar ab--gc-cons-percentage gc-cons-percentage)
155(defvar ab--file-name-handler-alist file-name-handler-alist)
156(setq gc-cons-threshold (* 400 1024 1024) ; 400 MiB
157 gc-cons-percentage 0.6
158 file-name-handler-alist nil
159 ;; sidesteps a bug when profiling with esup
160 esup-child-profile-require-level 0)
161#+end_src
162
163Of course, we'd like to set them back to their defaults once we're
164done initializing.
165
166#+begin_src emacs-lisp
167(add-hook
168 'after-init-hook
169 (lambda ()
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170 (setq gc-cons-threshold ab--gc-cons-threshold
171 gc-cons-percentage ab--gc-cons-percentage
172 file-name-handler-alist ab--file-name-handler-alist)))
173#+end_src
174
175Increase the number of lines kept in message logs (the =*Messages*=
176buffer).
177
178#+begin_src emacs-lisp
179(setq message-log-max 20000)
180#+end_src
181
182Optionally, we could suppress some byte compiler warnings like below,
183but for now I've decided to keep them enabled. See documentation for
184~byte-compile-warnings~ for more details.
185
186#+begin_src emacs-lisp
187;; (setq byte-compile-warnings
188;; '(not free-vars unresolved noruntime lexical make-local))
189#+end_src
190
191** Package management
192
193*** No =package.el=
194
195I can do all my package management things with Borg, and don't need
196Emacs' built-in =package.el=. Emacs 27 lets us disable =package.el= in
197the =early-init-file= (see [[https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=24acb31c04b4048b85311d794e600ecd7ce60d3b][here]]).
198
199#+begin_src emacs-lisp :tangle early-init.el
200(setq package-enable-at-startup nil)
201#+end_src
202
203But since Emacs 27 isn't out yet (Emacs 26 is just around the corner
204right now), and even when released it'll be long before most distros
205ship in their repos, I'll still put the old workaround with the
206commented call to ~package-initialize~ here anyway.
207
208#+begin_src emacs-lisp
209(setq package-enable-at-startup nil)
210;; (package-initialize)
211#+end_src
212
213*** Borg
214
215#+begin_quote
216Assimilate Emacs packages as Git submodules
217#+end_quote
218
219[[https://github.com/emacscollective/borg][Borg]] is at the heart of package management of my Emacs setup. In
220short, it creates a git submodule in =lib/= for each package, which
221can then be managed with the help of Magit or other tools.
222
223#+begin_src emacs-lisp
224(setq user-init-file (or load-file-name buffer-file-name)
225 user-emacs-directory (file-name-directory user-init-file))
226(add-to-list 'load-path
227 (expand-file-name "lib/borg" user-emacs-directory))
228(require 'borg)
229(borg-initialize)
230#+end_src
231
232*** =use-package=
233
234#+begin_quote
235A use-package declaration for simplifying your .emacs
236#+end_quote
237
238[[https://github.com/jwiegley/use-package][use-package]] is an awesome utility for managing and configuring
239packages (in our case especially the latter) in a neatly organized way
240and without compromising on performance.
241
242#+begin_src emacs-lisp
243(require 'use-package)
244(if nil ; set to t when need to debug init
245 (setq use-package-verbose t
246 use-package-expand-minimally nil
247 use-package-compute-statistics t
248 debug-on-error t)
249 (setq use-package-verbose nil
250 use-package-expand-minimally t))
251#+end_src
252
253*** Epkg
254
255#+begin_quote
256Browse the Emacsmirror package database
257#+end_quote
258
259Epkg provides access to a local copy of the [[https://emacsmirror.net][Emacsmirror]] package
260database, low-level functions for querying the database, and a
261=package.el=-like user interface for browsing the available packages.
262
263#+begin_src emacs-lisp
264(use-package epkg
265 :defer t)
266#+end_src
267
268** No littering in =~/.emacs.d=
269
270#+begin_quote
271Help keeping ~/.emacs.d clean
272#+end_quote
273
274By default, even for Emacs' built-in packages, the configuration files
275and persistent data are all over the place. Use =no-littering= to help
276contain the mess.
277
278#+begin_src emacs-lisp
279(use-package no-littering
280 :demand t
281 :config
282 (savehist-mode 1)
283 (add-to-list 'savehist-additional-variables 'kill-ring)
284 (save-place-mode 1)
285 (setq auto-save-file-name-transforms
286 `((".*" ,(no-littering-expand-var-file-name "auto-save/") t))))
287#+end_src
288
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289** Custom file (=custom.el=)
290
291I'm not planning on using the custom file much, but even so, I
292definitely don't want it mixing with =init.el=. So, here; let's give
293it it's own file. While at it, treat themes as safe.
294
295#+begin_src emacs-lisp
296(use-package custom
297 :no-require t
298 :config
299 (setq custom-file (no-littering-expand-etc-file-name "custom.el"))
300 (when (file-exists-p custom-file)
301 (load custom-file))
302 (setf custom-safe-themes t))
303#+end_src
304
305** Better =$PATH= handling
306
307Let's use [[https://github.com/purcell/exec-path-from-shell][exec-path-from-shell]] to make Emacs use the =$PATH= as set up
308in my shell.
309
310#+begin_src emacs-lisp
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311(use-package exec-path-from-shell
312 :defer 1
313 :init
314 (setq exec-path-from-shell-check-startup-files nil)
315 :config
316 (exec-path-from-shell-initialize)
317 ;; while we're at it, let's fix access to our running ssh-agent
318 (exec-path-from-shell-copy-env "SSH_AGENT_PID")
319 (exec-path-from-shell-copy-env "SSH_AUTH_SOCK"))
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320#+end_src
321
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322** Only one custom theme at a time
323
324#+begin_src emacs-lisp
325(defadvice load-theme (before clear-previous-themes activate)
326 "Clear existing theme settings instead of layering them"
327 (mapc #'disable-theme custom-enabled-themes))
328#+end_src
329
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330** Server
331
332Start server if not already running. Alternatively, can be done by
333issuing =emacs --daemon= in the terminal, which can be automated with
334a systemd service or using =brew services start emacs= on macOS. I use
335Emacs as my window manager (via EXWM), so I always start Emacs on
336login; so starting the server from inside Emacs is good enough for me.
337
338See [[https://www.gnu.org/software/emacs/manual/html_node/emacs/Emacs-Server.html#Emacs-Server][Using Emacs as a Server]].
339
340#+begin_src emacs-lisp
341(use-package server
342 :config (or (server-running-p) (server-mode)))
343#+end_src
344
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345** Unicode support
346
347Font stack with better unicode support, around =Ubuntu Mono= and
348=Hack=.
349
350#+begin_src emacs-lisp
351(dolist (ft (fontset-list))
352 (set-fontset-font
353 ft
354 'unicode
355 (font-spec :name "Ubuntu Mono"))
356 (set-fontset-font
357 ft
358 'unicode
16d70d6f 359 (font-spec :name "DejaVu Sans Mono")
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360 nil
361 'append)
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362 ;; (set-fontset-font
363 ;; ft
364 ;; 'unicode
365 ;; (font-spec
366 ;; :name "Symbola monospacified for DejaVu Sans Mono")
367 ;; nil
368 ;; 'append)
369 ;; (set-fontset-font
370 ;; ft
371 ;; #x2115 ; â„•
372 ;; (font-spec :name "DejaVu Sans Mono")
373 ;; nil
374 ;; 'append)
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375 (set-fontset-font
376 ft
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377 (cons ?Α ?ω)
378 (font-spec :name "DejaVu Sans Mono" :size 14)
e9bcfa30 379 nil
16d70d6f 380 'prepend))
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381#+end_src
382
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383** Libraries
384
385#+begin_src emacs-lisp
386(require 'cl-lib)
387(require 'subr-x)
388#+end_src
389
390** Useful utilities
391
392#+begin_src emacs-lisp
393(defun ab-enlist (exp)
394 "Return EXP wrapped in a list, or as-is if already a list."
395(if (listp exp) exp (list exp)))
396
397; from https://github.com/hlissner/doom-emacs/commit/589108fdb270f24a98ba6209f6955fe41530b3ef
398(defmacro after! (features &rest body)
399 "A smart wrapper around `with-eval-after-load'. Supresses warnings during
400compilation."
401 (declare (indent defun) (debug t))
402 (list (if (or (not (bound-and-true-p byte-compile-current-file))
403 (dolist (next (ab-enlist features))
404 (if (symbolp next)
405 (require next nil :no-error)
406 (load next :no-message :no-error))))
407 #'progn
408 #'with-no-warnings)
409 (cond ((symbolp features)
410 `(eval-after-load ',features '(progn ,@body)))
411 ((and (consp features)
412 (memq (car features) '(:or :any)))
413 `(progn
414 ,@(cl-loop for next in (cdr features)
415 collect `(after! ,next ,@body))))
416 ((and (consp features)
417 (memq (car features) '(:and :all)))
418 (dolist (next (cdr features))
419 (setq body `(after! ,next ,@body)))
420 body)
421 ((listp features)
422 `(after! (:all ,@features) ,@body)))))
423#+end_src
424
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425* Core
426:PROPERTIES:
427:CUSTOM_ID: core
428:END:
429
430** Defaults
431
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432*** Time and battery in mode-line
433
434Enable displaying time and battery in the mode-line, since I'm not
435using the Xfce panel anymore. Also, I don't need to see the load
436average on a regular basis, so disable that.
437
438#+begin_src emacs-lisp
439(use-package time
440 :ensure nil
441 :init
442 (setq display-time-default-load-average nil)
443 :config
444 (display-time-mode))
445
446(use-package battery
447 :ensure nil
448 :config
449 (display-battery-mode))
450#+end_src
451
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452*** Smaller fringe
453
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454Might want to set the fringe to a smaller value, especially if using
455EXWM. I'm fine with the default for now.
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456
457#+begin_src emacs-lisp
2f8102f0 458;; (fringe-mode '(3 . 1))
4b4e432d 459(fringe-mode nil)
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460#+end_src
461
462*** Disable disabled commands
463
464Emacs disables some commands by default that could persumably be
465confusing for novice users. Let's disable that.
466
467#+begin_src emacs-lisp
468(setq disabled-command-function nil)
469#+end_src
470
471*** Kill-ring
472
473Save what I copy into clipboard from other applications into Emacs'
474kill-ring, which would allow me to still be able to easily access it
475in case I kill (cut or copy) something else inside Emacs before
476yanking (pasting) what I'd originally intended to.
477
478#+begin_src emacs-lisp
479(setq save-interprogram-paste-before-kill t)
480#+end_src
481
482*** Minibuffer
483
484#+begin_src emacs-lisp
485(setq enable-recursive-minibuffers t
486 resize-mini-windows t)
487#+end_src
488
489*** Lazy-person-friendly yes/no prompts
490
491Lazy people would prefer to type fewer keystrokes, especially for yes
492or no questions. I'm lazy.
493
494#+begin_src emacs-lisp
495(defalias 'yes-or-no-p #'y-or-n-p)
496#+end_src
497
498*** Startup screen and =*scratch*=
499
500Firstly, let Emacs know that I'd like to have =*scratch*= as my
501startup buffer.
502
503#+begin_src emacs-lisp
504(setq initial-buffer-choice t)
505#+end_src
506
507Now let's customize the =*scratch*= buffer a bit. First off, I don't
508need the default hint.
509
510#+begin_src emacs-lisp
511(setq initial-scratch-message nil)
512#+end_src
513
514Also, let's use Text mode as the major mode, in case I want to
515customize it (=*scratch*='s default major mode, Fundamental mode,
516can't really be customized).
517
518#+begin_src emacs-lisp
519(setq initial-major-mode 'text-mode)
520#+end_src
521
522Inhibit the buffer list when more than 2 files are loaded.
523
524#+begin_src emacs-lisp
525(setq inhibit-startup-buffer-menu t)
526#+end_src
527
528I don't really need to see the startup screen or echo area message
529either.
530
531#+begin_src emacs-lisp
532(advice-add #'display-startup-echo-area-message :override #'ignore)
533(setq inhibit-startup-screen t
534 inhibit-startup-echo-area-message user-login-name)
535#+end_src
536
537*** More useful frame titles
538
539Show either the file name or the buffer name (in case the buffer isn't
540visiting a file). Borrowed from Emacs Prelude.
541
542#+begin_src emacs-lisp
543(setq frame-title-format
544 '("" invocation-name " - "
545 (:eval (if (buffer-file-name)
546 (abbreviate-file-name (buffer-file-name))
547 "%b"))))
548#+end_src
549
550*** Backups
551
552Emacs' default backup settings aren't that great. Let's use more
553sensible options. See documentation for the ~make-backup-file~
554variable.
555
556#+begin_src emacs-lisp
557(setq backup-by-copying t
558 version-control t)
559#+end_src
560
561** Packages
562
563The packages in this section are absolutely essential to my everyday
564workflow, and they play key roles in how I do my computing. They
565immensely enhance the Emacs experience for me; both using Emacs, and
566customizing it.
567
568*** [[https://github.com/emacscollective/auto-compile][auto-compile]]
569
570#+begin_src emacs-lisp
571(use-package auto-compile
572 :demand t
573 :config
574 (auto-compile-on-load-mode)
575 (auto-compile-on-save-mode)
576 (setq auto-compile-display-buffer nil
577 auto-compile-mode-line-counter t
578 auto-compile-source-recreate-deletes-dest t
579 auto-compile-toggle-deletes-nonlib-dest t
580 auto-compile-update-autoloads t)
581 (add-hook 'auto-compile-inhibit-compile-hook
582 'auto-compile-inhibit-compile-detached-git-head))
583#+end_src
584
3ea5e792 585*** [[https://github.com/noctuid/general.el][general]]
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586
587#+begin_quote
588Roll your own modal mode
589#+end_quote
590
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591#+begin_src emacs-lisp
592(use-package general
593 :demand t
594 :config
595 (general-evil-setup t)
596
597 (general-override-mode)
598
599 (general-create-definer
600 ab--mode-leader-keys
601 :keymaps 'override
602 :states '(emacs normal visual motion insert)
603 :non-normal-prefix "C-,"
604 :prefix ",")
605
606 (general-create-definer
607 ab--leader-keys
608 :keymaps 'override
609 :states '(emacs normal visual motion insert)
610 :non-normal-prefix "M-m"
611 :prefix "SPC"))
612#+end_src
613
614*** evil
615
616#+begin_src emacs-lisp
617(use-package evil
618 :demand t
619 :hook (view-mode . evil-motion-state)
620 :config (evil-mode 1))
621#+end_src
622
623#+begin_src emacs-lisp
624(use-package evil-escape
625 :demand t
626 :init
627 (setq evil-escape-excluded-states '(normal visual multiedit emacs motion)
628 evil-escape-excluded-major-modes '(neotree-mode)
629 evil-escape-key-sequence "jk"
630 evil-escape-delay 0.25)
631 :general
632 (:states '(insert replace visual operator)
633 "C-g" #'evil-escape)
634 :config
635 (evil-escape-mode 1)
636 ;; no `evil-escape' in minibuffer
637 (push #'minibufferp evil-escape-inhibit-functions))
638#+end_src
639
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640*** [[https://orgmode.org/][Org mode]]
641
642#+begin_quote
643Org mode is for keeping notes, maintaining TODO lists, planning
644projects, and authoring documents with a fast and effective plain-text
645system.
646#+end_quote
647
648In short, my favourite way of life.
649
650#+begin_src emacs-lisp
651(setq org-src-tab-acts-natively t
652 org-src-preserve-indentation nil
5c2eaaf1 653 org-edit-src-content-indentation 0
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654 org-html-divs '((preamble "header" "preamble")
655 (content "main" "content")
656 (postamble "footer" "postamble"))
5c2eaaf1 657 org-html-doctype "html5"
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658 org-html-html5-fancy t
659 org-html-postamble nil)
3ea5e792 660(add-hook 'org-mode-hook 'org-indent-mode)
5c2eaaf1 661(use-package htmlize)
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662#+end_src
663
664*** [[https://magit.vc/][Magit]]
665
666#+begin_quote
667It's Magit! A Git porcelain inside Emacs.
668#+end_quote
669
670Not just how I do git, but /the/ way to do git.
671
672#+begin_src emacs-lisp
673(use-package magit
3ea5e792 674 :general (ab--leader-keys "g s" 'magit-status)
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675 :defer t
676 :bind (("s-g" . magit-status)
677 ("C-x g" . magit-status)
678 ("C-x M-g" . magit-dispatch-popup))
679 :config
680 (magit-add-section-hook 'magit-status-sections-hook
681 'magit-insert-modules
682 'magit-insert-stashes
683 'append))
684#+end_src
685
686*** [[https://github.com/abo-abo/swiper][Ivy]] (and friends)
687
688#+begin_quote
689Ivy - a generic completion frontend for Emacs, Swiper - isearch with
690an overview, and more. Oh, man!
691#+end_quote
692
693There's no way I could top that, so I won't attempt to.
694
695**** Ivy
696
697#+begin_src emacs-lisp
f7752223 698(use-package ivy
3ea5e792 699 :defer 1
f7752223
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700 :bind
701 (:map ivy-minibuffer-map
702 ([escape] . keyboard-escape-quit)
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703 ;; ("C-j" . ivy-next-line)
704 ;; ("C-k" . ivy-previous-line)
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705 ([S-up] . ivy-previous-history-element)
706 ([S-down] . ivy-next-history-element)
707 ("DEL" . ivy-backward-delete-char))
708 :config
f6d8e3e4 709 (setq ivy-wrap t)
f7752223 710 (ivy-mode 1))
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711#+end_src
712
713**** Swiper
714
715#+begin_src emacs-lisp
f7752223 716(use-package swiper
3ea5e792 717 :general (:states 'normal "/" 'swiper)
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718 :bind (([remap isearch-forward] . swiper)
719 ([remap isearch-backward] . swiper)))
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720#+end_src
721
722**** Counsel
723
724#+begin_src emacs-lisp
f7752223 725(use-package counsel
3d35bdff 726 :defer 1
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727 :general (ab--leader-keys
728 "f r" 'counsel-recentf
729 "SPC" 'counsel-M-x
730 "." 'counsel-find-file)
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731 :bind (([remap execute-extended-command] . counsel-M-x)
732 ([remap find-file] . counsel-find-file)
733 ("s-r" . counsel-recentf)
734 :map minibuffer-local-map
735 ("C-r" . counsel-minibuffer-history))
736 :config
737 (counsel-mode 1)
738 (defalias 'locate #'counsel-locate))
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739#+end_src
740
741* Borg's =layer/essentials=
742
743TODO: break this giant source block down into individual org sections.
744
745#+begin_src emacs-lisp
746(use-package dash
747 :config (dash-enable-font-lock))
748
749(use-package diff-hl
750 :config
751 (setq diff-hl-draw-borders nil)
752 (global-diff-hl-mode)
753 (add-hook 'magit-post-refresh-hook 'diff-hl-magit-post-refresh t))
754
755(use-package dired
756 :defer t
757 :config (setq dired-listing-switches "-alh"))
758
759(use-package eldoc
760 :when (version< "25" emacs-version)
761 :config (global-eldoc-mode))
762
763(use-package help
764 :defer t
765 :config (temp-buffer-resize-mode))
766
767(progn ; `isearch'
768 (setq isearch-allow-scroll t))
769
770(use-package lisp-mode
771 :config
772 (add-hook 'emacs-lisp-mode-hook 'outline-minor-mode)
773 (add-hook 'emacs-lisp-mode-hook 'reveal-mode)
774 (defun indent-spaces-mode ()
775 (setq indent-tabs-mode nil))
776 (add-hook 'lisp-interaction-mode-hook #'indent-spaces-mode))
777
778(use-package man
779 :defer t
780 :config (setq Man-width 80))
781
782(use-package paren
783 :config (show-paren-mode))
784
785(use-package prog-mode
786 :config (global-prettify-symbols-mode)
787 (defun indicate-buffer-boundaries-left ()
788 (setq indicate-buffer-boundaries 'left))
789 (add-hook 'prog-mode-hook #'indicate-buffer-boundaries-left))
790
791(use-package recentf
792 :demand t
793 :config (add-to-list 'recentf-exclude "^/\\(?:ssh\\|su\\|sudo\\)?:"))
794
795(use-package savehist
796 :config (savehist-mode))
797
798(use-package saveplace
799 :when (version< "25" emacs-version)
800 :config (save-place-mode))
801
802(use-package simple
803 :config (column-number-mode))
804
805(progn ; `text-mode'
806 (add-hook 'text-mode-hook #'indicate-buffer-boundaries-left))
807
808(use-package tramp
809 :defer t
810 :config
811 (add-to-list 'tramp-default-proxies-alist '(nil "\\`root\\'" "/ssh:%h:"))
812 (add-to-list 'tramp-default-proxies-alist '("localhost" nil nil))
813 (add-to-list 'tramp-default-proxies-alist
814 (list (regexp-quote (system-name)) nil nil)))
815
816(use-package undo-tree
817 :config
818 (global-undo-tree-mode)
819 (setq undo-tree-mode-lighter ""))
820#+end_src
821
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822* Editing
823
824** Company
825
826#+begin_src emacs-lisp
827(use-package company
828 :defer 5
829 :bind
830 (:map company-active-map
831 ([tab] . company-complete-common-or-cycle))
832 :custom
833 (company-idle-delay 0.3)
834 (company-minimum-prefix-length 1)
835 (company-selection-wrap-around t)
836 (company-dabbrev-char-regexp "\\sw\\|\\s_\\|[-_]")
837 :config
838 (global-company-mode t))
839#+end_src
840
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841** Customizations
842
843#+begin_src emacs-lisp
844(ab--leader-keys
845 "b s" 'save-buffer
846 "b b" 'ivy-switch-buffer
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847 "," 'ivy-switch-buffer
848 "b k" 'kill-this-buffer
3ea5e792
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849 "q q" 'evil-save-and-quit)
850#+end_src
851
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852* Syntax and spell checking
853#+begin_src emacs-lisp
854(use-package flycheck
855 :hook (prog-mode . flycheck-mode)
856 :config
857 ;; Use the load-path from running Emacs when checking elisp files
858 (setq flycheck-emacs-lisp-load-path 'inherit)
859
860 ;; Only flycheck when I actually save the buffer
861 (setq flycheck-check-syntax-automatically '(mode-enabled save)))
862#+end_src
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863* Programming modes
864
d43a8eda 865** [[http://alloytools.org][Alloy]] (with [[https://github.com/dwwmmn/alloy-mode][alloy-mode]])
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AB
866
867#+begin_src emacs-lisp
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868(use-package alloy-mode
869 :config (setq alloy-basic-offset 2))
221cdaa3
AB
870#+end_src
871
d43a8eda 872** [[https://coq.inria.fr][Coq]] (with [[https://github.com/ProofGeneral/PG][Proof General]])
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873
874#+begin_src emacs-lisp
875(use-package proof-site ; Proof General
876 :load-path "lib/proof-site/generic/")
877#+end_src
878
d43a8eda 879** [[https://leanprover.github.io][Lean]] (with [[https://github.com/leanprover/lean-mode][lean-mode]])
3f0f8d01
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880
881#+begin_src emacs-lisp
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882(use-package lean-mode
883 :bind (:map lean-mode-map
884 ("S-SPC" . company-complete)))
3f0f8d01
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885#+end_src
886
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887** Haskell
888
889*** [[https://github.com/haskell/haskell-mode][haskell-mode]]
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890
891#+begin_src emacs-lisp
892(use-package haskell-mode
893 :config
894 (setq haskell-indentation-layout-offset 4
895 haskell-indentation-left-offset 4
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896 flycheck-checker 'haskell-hlint
897 flycheck-disabled-checkers '(haskell-stack-ghc haskell-ghc)))
a81db923 898#+end_src
36fca309 899
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900*** [[https://github.com/jyp/dante][dante]]
901
902#+begin_src emacs-lisp
903(use-package dante
904 :after haskell-mode
905 :commands dante-mode
906 :hook (haskell-mode . dante-mode))
907#+end_src
908
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909*** [[https://github.com/mpickering/hlint-refactor-mode][hlint-refactor]]
910
911Emacs bindings for [[https://github.com/ndmitchell/hlint][hlint]]'s refactor option. This requires the refact
912executable from [[https://github.com/mpickering/apply-refact][apply-refact]].
913
914#+begin_src emacs-lisp
915(use-package hlint-refactor
916 :bind (:map hlint-refactor-mode-map
917 ("C-c l b" . hlint-refactor-refactor-buffer)
918 ("C-c l r" . hlint-refactor-refactor-at-point))
919 :hook (haskell-mode . hlint-refactor-mode))
920#+end_src
921
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922*** [[https://github.com/flycheck/flycheck-haskell][flycheck-haskell]]
923
924#+begin_src emacs-lisp
925(use-package flycheck-haskell)
926#+end_src
927
928*** [[https://github.com/ndmitchell/hlint/blob/20e116a043f2073c57b17b24ae6364b5e433ba7e/data/hs-lint.el][hs-lint.el]]
929:PROPERTIES:
930:header-args+: :tangle lisp/hs-lint.el :mkdirp yes
931:END:
932
933Currently using =flycheck-haskell= with the =haskell-hlint= checker
934instead.
935
936#+begin_src emacs-lisp :tangle no
937;;; hs-lint.el --- minor mode for HLint code checking
938
939;; Copyright 2009 (C) Alex Ott
940;;
941;; Author: Alex Ott <alexott@gmail.com>
942;; Keywords: haskell, lint, HLint
943;; Requirements:
944;; Status: distributed under terms of GPL2 or above
945
946;; Typical message from HLint looks like:
947;;
948;; /Users/ott/projects/lang-exp/haskell/test.hs:52:1: Eta reduce
949;; Found:
950;; count1 p l = length (filter p l)
951;; Why not:
952;; count1 p = length . filter p
953
954
955(require 'compile)
956
957(defgroup hs-lint nil
958 "Run HLint as inferior of Emacs, parse error messages."
959 :group 'tools
960 :group 'haskell)
961
962(defcustom hs-lint-command "hlint"
963 "The default hs-lint command for \\[hlint]."
964 :type 'string
965 :group 'hs-lint)
966
967(defcustom hs-lint-save-files t
968 "Save modified files when run HLint or no (ask user)"
969 :type 'boolean
970 :group 'hs-lint)
971
972(defcustom hs-lint-replace-with-suggestions nil
973 "Replace user's code with suggested replacements"
974 :type 'boolean
975 :group 'hs-lint)
976
977(defcustom hs-lint-replace-without-ask nil
978 "Replace user's code with suggested replacements automatically"
979 :type 'boolean
980 :group 'hs-lint)
981
982(defun hs-lint-process-setup ()
983 "Setup compilation variables and buffer for `hlint'."
984 (run-hooks 'hs-lint-setup-hook))
985
986;; regex for replace suggestions
987;;
988;; ^\(.*?\):\([0-9]+\):\([0-9]+\): .*
989;; Found:
990;; \s +\(.*\)
991;; Why not:
992;; \s +\(.*\)
993
994(defvar hs-lint-regex
995 "^\\(.*?\\):\\([0-9]+\\):\\([0-9]+\\): .*[\n\C-m]Found:[\n\C-m]\\s +\\(.*\\)[\n\C-m]Why not:[\n\C-m]\\s +\\(.*\\)[\n\C-m]"
996 "Regex for HLint messages")
997
998(defun make-short-string (str maxlen)
999 (if (< (length str) maxlen)
1000 str
1001 (concat (substring str 0 (- maxlen 3)) "...")))
1002
1003(defun hs-lint-replace-suggestions ()
1004 "Perform actual replacement of suggestions"
1005 (goto-char (point-min))
1006 (while (re-search-forward hs-lint-regex nil t)
1007 (let* ((fname (match-string 1))
1008 (fline (string-to-number (match-string 2)))
1009 (old-code (match-string 4))
1010 (new-code (match-string 5))
1011 (msg (concat "Replace '" (make-short-string old-code 30)
1012 "' with '" (make-short-string new-code 30) "'"))
1013 (bline 0)
1014 (eline 0)
1015 (spos 0)
1016 (new-old-code ""))
1017 (save-excursion
1018 (switch-to-buffer (get-file-buffer fname))
1019 (goto-char (point-min))
1020 (forward-line (1- fline))
1021 (beginning-of-line)
1022 (setf bline (point))
1023 (when (or hs-lint-replace-without-ask
1024 (yes-or-no-p msg))
1025 (end-of-line)
1026 (setf eline (point))
1027 (beginning-of-line)
1028 (setf old-code (regexp-quote old-code))
1029 (while (string-match "\\\\ " old-code spos)
1030 (setf new-old-code (concat new-old-code
1031 (substring old-code spos (match-beginning 0))
1032 "\\ *"))
1033 (setf spos (match-end 0)))
1034 (setf new-old-code (concat new-old-code (substring old-code spos)))
1035 (remove-text-properties bline eline '(composition nil))
1036 (when (re-search-forward new-old-code eline t)
1037 (replace-match new-code nil t)))))))
1038
1039(defun hs-lint-finish-hook (buf msg)
1040 "Function, that is executed at the end of HLint execution"
1041 (if hs-lint-replace-with-suggestions
1042 (hs-lint-replace-suggestions)
1043 (next-error 1 t)))
1044
1045(define-compilation-mode hs-lint-mode "HLint"
1046 "Mode for check Haskell source code."
1047 (set (make-local-variable 'compilation-process-setup-function)
1048 'hs-lint-process-setup)
1049 (set (make-local-variable 'compilation-disable-input) t)
1050 (set (make-local-variable 'compilation-scroll-output) nil)
1051 (set (make-local-variable 'compilation-finish-functions)
1052 (list 'hs-lint-finish-hook))
1053 )
1054
1055(defun hs-lint ()
1056 "Run HLint for current buffer with haskell source"
1057 (interactive)
1058 (save-some-buffers hs-lint-save-files)
1059 (compilation-start (concat hs-lint-command " \"" buffer-file-name "\"")
1060 'hs-lint-mode))
1061
1062(provide 'hs-lint)
1063;;; hs-lint.el ends here
1064#+end_src
1065
1066#+begin_src emacs-lisp :tangle no
1067(use-package hs-lint
1068 :load-path "lisp/"
1069 :bind (:map haskell-mode-map
1070 ("C-c l l" . hs-lint)))
1071#+end_src
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1072* Emacs Enhancements
1073
1074** [[https://github.com/justbur/emacs-which-key][which-key]]
1075
1076#+begin_quote
1077Emacs package that displays available keybindings in popup
1078#+end_quote
1079
1080#+begin_src emacs-lisp
1081(use-package which-key
1082 :defer 1
1083 :config (which-key-mode))
1084#+end_src
75095920 1085
d43a8eda 1086** [[https://github.com/seagle0128/doom-modeline][doom-modeline]]
75095920
AB
1087
1088#+begin_src emacs-lisp
1089(use-package doom-modeline
1090 :demand t
1091 :config (setq doom-modeline-height 32)
1092 :hook (after-init . doom-modeline-init))
1093#+end_src
1094
d43a8eda 1095** [[https://github.com/11111000000/tao-theme-emacs][tao-theme]]
75095920
AB
1096
1097#+begin_src emacs-lisp
1098(use-package tao-theme
1099 :demand t
1100 :config (load-theme 'tao-yang t))
1101#+end_src
1102
51db62d8 1103* Email
d43a8eda 1104** [[https://notmuchmail.org][notmuch]]
51db62d8
AB
1105
1106#+begin_src emacs-lisp
1107(defun ab/notmuch ()
1108 "Delete other windows, then launch `notmuch'."
1109 (interactive)
1110 (require 'notmuch)
1111 (delete-other-windows)
1112 (notmuch))
1113
3ea5e792
AB
1114;; (ab--leader-keys
1115;; "m" 'ab/notmuch
1116;; "s" 'save-buffer
1117;; "SPC" 'counsel-M-x)
1118
51db62d8
AB
1119;; (map!
1120;; :leader
1121;; :desc "notmuch" :n "m" #'ab/notmuch
1122;; (:desc "search" :prefix "/"
1123;; :desc "notmuch" :n "m" #'counsel-notmuch))
1124#+end_src
1125
1126#+begin_src emacs-lisp
1127(defvar ab-maildir "~/mail")
1128
1129(use-package sendmail
1130 ;; :ensure nil
1131 :config
1132 (setq sendmail-program "/usr/bin/msmtp"
1133 mail-specify-envelope-from t
1134 mail-envelope-from 'header))
1135
1136(use-package message
1137 ;; :ensure nil
1138 :config
1139 (setq message-kill-buffer-on-exit t
1140 message-send-mail-function 'message-send-mail-with-sendmail
1141 message-sendmail-envelope-from 'header
1142 message-directory "drafts"
7a8b023b 1143 message-user-fqdn "fencepost.gnu.org")
51db62d8
AB
1144 (add-hook 'message-mode-hook
1145 (lambda () (setq fill-column 65
1146 message-fill-column 65)))
1147 (add-hook 'message-mode-hook
1148 #'flyspell-mode)
1149 ;; (add-hook 'notmuch-message-mode-hook #'+doom-modeline|set-special-modeline)
1150 ;; TODO: is there a way to only run this when replying and not composing?
5842415b
AB
1151 ;; (add-hook 'notmuch-message-mode-hook
1152 ;; (lambda () (progn
1153 ;; (newline)
1154 ;; (newline)
1155 ;; (forward-line -1)
1156 ;; (forward-line -1))))
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AB
1157 ;; (add-hook 'message-setup-hook
1158 ;; #'mml-secure-message-sign-pgpmime)
1159 )
1160
1161(after! mml-sec
1162 (setq mml-secure-openpgp-encrypt-to-self t
1163 mml-secure-openpgp-sign-with-sender t))
1164
1165(use-package notmuch
3ea5e792 1166 :general (ab--leader-keys "m" 'ab/notmuch)
51db62d8
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1167 :config
1168 (setq notmuch-hello-sections
1169 '(notmuch-hello-insert-header
1170 notmuch-hello-insert-saved-searches
1171 ;; notmuch-hello-insert-search
1172 notmuch-hello-insert-alltags)
1173 notmuch-search-oldest-first nil
1174 notmuch-show-all-tags-list t
1175 notmuch-hello-thousands-separator ","
1176 notmuch-fcc-dirs
1177 '(("amin@aminb.org" . "amin/Sent")
1178 ("abandali@uwaterloo.ca" . "\"uwaterloo/Sent Items\"")
1179 ("amin.bandali@uwaterloo.ca" . "\"uwaterloo/Sent Items\"")
1180 ("aminb@gnu.org" . "gnu/Sent")
f4636d6b
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1181 (".*" . "sent"))
1182 notmuch-search-result-format
1183 '(("date" . "%12s ")
1184 ("count" . "%-7s ")
1185 ("authors" . "%-40s ")
1186 ("subject" . "%s ")
1187 ("tags" . "(%s)")))
51db62d8
AB
1188 ;; (add-hook 'visual-fill-column-mode-hook
1189 ;; (lambda ()
1190 ;; (when (string= major-mode 'notmuch-message-mode)
1191 ;; (setq visual-fill-column-width 70))))
1192 ;; (set! :evil-state 'notmuch-message-mode 'insert)
1193 ;; (advice-add #'notmuch-bury-or-kill-this-buffer
1194 ;; :override #'kill-this-buffer)
1195 :bind
1196 (:map notmuch-hello-mode-map
1197 ("g" . notmuch-poll-and-refresh-this-buffer)
1198 ("i" . (lambda ()
1199 "Search for `inbox' tagged messages"
1200 (interactive)
1201 (notmuch-hello-search "tag:inbox")))
1202 ("u" . (lambda ()
1203 "Search for `unread' tagged messages"
1204 (interactive)
1205 (notmuch-hello-search "tag:unread")))
1206 ("M" . (lambda ()
1207 "Compose new mail and prompt for sender"
1208 (interactive)
1209 (let ((current-prefix-arg t))
1210 (call-interactively #'notmuch-mua-new-mail)))))
1211 (:map notmuch-search-mode-map
1212 ("g" . notmuch-poll-and-refresh-this-buffer)
1213 ("k" . (lambda ()
1214 "Mark message read"
1215 (interactive)
1216 (notmuch-search-tag '("-unread"))
1217 ;; (notmuch-search-archive-thread)
1218 (notmuch-search-next-thread)))
1219 ("u" . (lambda ()
1220 "Mark message unread"
1221 (interactive)
1222 (notmuch-search-tag '("+unread"))
1223 (notmuch-search-next-thread)))
1224 ("K" . (lambda ()
1225 "Mark message deleted"
1226 (interactive)
1227 (notmuch-search-tag '("-unread" "-inbox" "+deleted"))
1228 (notmuch-search-archive-thread)))
1229 ("S" . (lambda ()
1230 "Mark message as spam"
1231 (interactive)
7a8b023b 1232 (notmuch-search-tag '("-unread" "-inbox" "-webmasters" "+spam"))
51db62d8
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1233 (notmuch-search-archive-thread))))
1234 (:map notmuch-tree-mode-map ; TODO: additional bindings
1235 ("S" . (lambda ()
1236 "Mark message as spam"
1237 (interactive)
7a8b023b 1238 (notmuch-tree-tag '("-unread" "-inbox" "-webmasters" "+spam"))
51db62d8
AB
1239 (notmuch-tree-archive-thread))))
1240)
1241
1242;; (use-package counsel-notmuch
1243;; :commands counsel-notmuch)
1244
1245(after! notmuch-crypto
1246 (setq notmuch-crypto-process-mime t))
1247
1248;; (after! evil
1249;; (mapc (lambda (str) (evil-set-initial-state (car str) (cdr str)))
1250;; '((notmuch-hello-mode . emacs)
1251;; (notmuch-search-mode . emacs)
1252;; (notmuch-tree-mode . emacs))))
1253
1254(after! recentf
1255 (add-to-list 'recentf-exclude (expand-file-name ab-maildir)))
1256#+end_src
f76bdaa8 1257
26172d91
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1258** supercite
1259
1260#+begin_src emacs-lisp :tangle no
1261(use-package supercite
1262 :commands sc-cite-original
1263 :init
1264 (add-hook 'mail-citation-hook 'sc-cite-original)
1265
1266 (defun sc-remove-existing-signature ()
1267 (save-excursion
1268 (goto-char (region-beginning))
1269 (when (re-search-forward message-signature-separator (region-end) t)
1270 (delete-region (match-beginning 0) (region-end)))))
1271
1272 (add-hook 'mail-citation-hook 'sc-remove-existing-signature)
1273
1274 (defun sc-remove-if-not-mailing-list ()
1275 (unless (assoc "list-id" sc-mail-info)
1276 (setq attribution sc-default-attribution
1277 citation (concat sc-citation-delimiter
1278 sc-citation-separator))))
1279
1280 (add-hook 'sc-attribs-postselect-hook 'sc-remove-if-not-mailing-list)
1281
1282 :config
1283 (defun sc-fill-if-different (&optional prefix)
1284 "Fill the region bounded by `sc-fill-begin' and point.
1285Only fill if optional PREFIX is different than
1286`sc-fill-line-prefix'. If `sc-auto-fill-region-p' is nil, do not
1287fill region. If PREFIX is not supplied, initialize fill
1288variables. This is useful for a regi `begin' frame-entry."
1289 (if (not prefix)
1290 (setq sc-fill-line-prefix ""
1291 sc-fill-begin (line-beginning-position))
1292 (if (and sc-auto-fill-region-p
1293 (not (string= prefix sc-fill-line-prefix)))
1294 (let ((fill-prefix sc-fill-line-prefix))
1295 (unless (or (string= fill-prefix "")
1296 (save-excursion
1297 (goto-char sc-fill-begin)
1298 (or (looking-at ">+ +")
1299 (< (length
1300 (buffer-substring (point)
1301 (line-end-position)))
1302 65))))
1303 (fill-region sc-fill-begin (line-beginning-position)))
1304 (setq sc-fill-line-prefix prefix
1305 sc-fill-begin (line-beginning-position)))))
1306nil))
1307#+end_src
1308
180cab37
AB
1309* Post initialization
1310:PROPERTIES:
967b0a82 1311:CUSTOM_ID: post-initialization
180cab37
AB
1312:END:
1313
1314Display how long it took to load the init file.
1315
1316#+begin_src emacs-lisp
1317(message "Loading %s...done (%.3fs)" user-init-file
1318 (float-time (time-subtract (current-time)
1319 ab--before-user-init-time)))
1320#+end_src
1321
1322* Footer
1323:PROPERTIES:
1324:CUSTOM_ID: footer
1325:END:
1326
1327#+begin_src emacs-lisp :comments none
1328;;; init.el ends here
1329#+end_src