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

   1 #+title: Literate Emacs Configuration of Amin Bandali
   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/raxod502/straight.el][straight.el]].  Over the years, I've taken inspiration from
  14 configurations of many different people.  Some of the configurations
  15 that I can remember 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 =straight.el=.  I also used Borg for a
  32 few months, but decided to try =straight.el= which allows direct use
  33 of the various package archives.
  34
  35 ** Installation
  36 :PROPERTIES:
  37 :CUSTOM_ID: installation
  38 :END:
  39
  40 To use this config for your Emacs, first you need to clone this repo,
  41 then tangle =init.org= into =init.el=, and optionally byte-compile
  42 =init.el=.
  43
  44 First, clone the repository and =cd= into it:
  45
  46 #+begin_src sh :tangle no
  47 git clone https://git.sr.ht/~bandali/dotfiles ~/.emacs.d
  48 cd ~/.emacs.d
  49 #+end_src
  50
  51 Then, decide if you would like to use a byte-compiled init file, and
  52 set the [[#byte-compiled-init][a/byte-compiled-init]] variable accordingly.
  53
  54 Now, first tangle =init.org=, and only if you chose to have a
  55 byte-compiled init, build init as well:
  56
  57 #+begin_src sh :tangle no
  58 make tangle-init
  59 make build-init
  60 #+end_src
  61
  62 If you'd like to use a byte-compiled init, it's important that it be
  63 recompiled whenever =init.el= is generated from an updated =init.org=.
  64 Not only does my setup automatically and asynchronously tangle
  65 =init.org= to =init.el= every time you edit and save =init.org= in GNU
  66 Emacs, it will also invoke =make build-init= if you set
  67 =a/byte-compiled-init= to =t= above, so you wouldn't have to worry
  68 about manually tangling and compiling your init file whenever you
  69 change it.  The output of the last byte-compilation in the current
  70 session is kept in a =*compilation*= buffer, which will automatically
  71 be displayed if compilation fails.
  72
  73 * Contents                                                   :toc_1:noexport:
  74
  75 - [[#about][About]]
  76 - [[#header][Header]]
  77 - [[#initial-setup][Initial setup]]
  78 - [[#core][Core]]
  79 - [[#borg-essentials][Borg's =layer/essentials=]]
  80 - [[#editing][Editing]]
  81 - [[#syntax-spell-checking][Syntax and spell checking]]
  82 - [[#programming-modes][Programming modes]]
  83 - [[#emacs-enhancements][Emacs enhancements]]
  84 - [[#email][Email]]
  85 - [[#blogging][Blogging]]
  86 - [[#post-initialization][Post initialization]]
  87 - [[#footer][Footer]]
  88
  89 * Header
  90 :PROPERTIES:
  91 :CUSTOM_ID: header
  92 :END:
  93
  94 ** First line
  95
  96 #+begin_src emacs-lisp :comments none
  97 ;;; init.el --- Amin Bandali's Emacs config -*- lexical-binding: t; eval: (view-mode 1) -*-
  98 #+end_src
  99
 100 Enable =view-mode=, which both makes the file read-only (as a reminder
 101 that =init.el= is an auto-generated file, not supposed to be edited),
 102 and provides some convenient key bindings for browsing through the
 103 file.
 104
 105 ** License
 106
 107 #+begin_src emacs-lisp :comments none
 108 ;; Copyright (C) 2018-2019  Amin Bandali <bandali@gnu.org>
 109
 110 ;; This program is free software: you can redistribute it and/or modify
 111 ;; it under the terms of the GNU General Public License as published by
 112 ;; the Free Software Foundation, either version 3 of the License, or
 113 ;; (at your option) any later version.
 114
 115 ;; This program is distributed in the hope that it will be useful,
 116 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
 117 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 118 ;; GNU General Public License for more details.
 119
 120 ;; You should have received a copy of the GNU General Public License
 121 ;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 122 #+end_src
 123
 124 ** Commentary
 125
 126 #+begin_src emacs-lisp :comments none
 127 ;;; Commentary:
 128
 129 ;; Emacs configuration of Amin Bandali, computer scientist, functional
 130 ;; programmer, and free software advocate.
 131
 132 ;; THIS FILE IS AUTO-GENERATED FROM `init.org'.
 133 #+end_src
 134
 135 * Initial setup
 136 :PROPERTIES:
 137 :CUSTOM_ID: initial-setup
 138 :END:
 139
 140 ** Byte-compiled init preference
 141 :PROPERTIES:
 142 :CUSTOM_ID: byte-compiled-init
 143 :END:
 144
 145 If you would like a byte-compiled init file, set the following
 146 variable to ~t~, otherwise set it to ~nil~.
 147
 148 #+begin_src emacs-lisp
 149 (defvar a/byte-compiled-init t
 150   "If non-nil, byte-(re)compile init.el on successful tangles.")
 151 #+end_src
 152
 153 You can click on [[#installation][Installation]] to jump back up there if you like :)
 154
 155 ** Emacs initialization
 156
 157 I'd like to do a couple of measurements of Emacs' startup time. First,
 158 let's see how long Emacs takes to start up, before even loading
 159 =init.el=, i.e. =user-init-file=:
 160
 161 #+begin_src emacs-lisp
 162 (defvar a/before-user-init-time (current-time)
 163   "Value of `current-time' when Emacs begins loading `user-init-file'.")
 164 (message "Loading Emacs...done (%.3fs)"
 165          (float-time (time-subtract a/before-user-init-time
 166                                     before-init-time)))
 167 #+end_src
 168
 169 Also, temporarily increase ~gc-cons-threshhold~ and
 170 ~gc-cons-percentage~ during startup to reduce garbage collection
 171 frequency. Clearing the ~file-name-handler-alist~ seems to help reduce
 172 startup time as well.
 173
 174 #+begin_src emacs-lisp
 175 (defvar a/gc-cons-threshold gc-cons-threshold)
 176 (defvar a/gc-cons-percentage gc-cons-percentage)
 177 (defvar a/file-name-handler-alist file-name-handler-alist)
 178 (setq gc-cons-threshold (* 400 1024 1024)  ; 400 MiB
 179       gc-cons-percentage 0.6
 180       file-name-handler-alist nil
 181       ;; sidesteps a bug when profiling with esup
 182       esup-child-profile-require-level 0)
 183 #+end_src
 184
 185 Of course, we'd like to set them back to their defaults once we're
 186 done initializing.
 187
 188 #+begin_src emacs-lisp
 189 (add-hook
 190  'after-init-hook
 191  (lambda ()
 192    (setq gc-cons-threshold a/gc-cons-threshold
 193          gc-cons-percentage a/gc-cons-percentage
 194          file-name-handler-alist a/file-name-handler-alist)))
 195 #+end_src
 196
 197 Increase the number of lines kept in message logs (the =*Messages*=
 198 buffer).
 199
 200 #+begin_src emacs-lisp
 201 (setq message-log-max 20000)
 202 #+end_src
 203
 204 Optionally, we could suppress some byte compiler warnings like below,
 205 but for now I've decided to keep them enabled. See documentation for
 206 ~byte-compile-warnings~ for more details.
 207
 208 #+begin_src emacs-lisp
 209 ;; (setq byte-compile-warnings
 210 ;;       '(not free-vars unresolved noruntime lexical make-local))
 211 #+end_src
 212
 213 ** whoami
 214
 215 #+begin_src emacs-lisp
 216 (setq user-full-name "Amin Bandali"
 217       user-mail-address "amin@bndl.org")
 218 #+end_src
 219
 220 ** Package management
 221
 222 *** No =package.el=
 223
 224 I can do all my package management things with =straight.el=, and
 225 don't need Emacs' built-in =package.el=.  Emacs 27 lets us disable
 226 =package.el= in the =early-init-file= (see [[https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=24acb31c04b4048b85311d794e600ecd7ce60d3b][here]]).
 227
 228 #+begin_src emacs-lisp :tangle early-init.el
 229 (setq package-enable-at-startup nil)
 230 #+end_src
 231
 232 But since Emacs 27 isn't out yet (Emacs 26 is just around the corner
 233 right now), and even when released it'll be long before most distros
 234 ship in their repos, I'll still put the old workaround with the
 235 commented call to ~package-initialize~ here anyway.
 236
 237 #+begin_src emacs-lisp :tangle no
 238 (setq package-enable-at-startup nil)
 239 ;; (package-initialize)
 240 #+end_src
 241
 242 Update: the above is not necessary, since =straight.el= automatically
 243 does that (and more).  See =straight-package-neutering-mode=.
 244
 245 *** =straight.el=
 246
 247 #+begin_quote
 248 Next-generation, purely functional package manager for the Emacs
 249 hacker.
 250 #+end_quote
 251
 252 =straight.el= allows me to have a fully reproducible Emacs setup.
 253
 254 #+begin_src emacs-lisp
 255 ;; Main engine start...
 256
 257 (setq straight-repository-branch "develop"
 258       straight-check-for-modifications '(check-on-save find-when-checking))
 259
 260 (defun a/bootstrap-straight ()
 261   (defvar bootstrap-version)
 262   (let ((bootstrap-file
 263          (expand-file-name "straight/repos/straight.el/bootstrap.el" user-emacs-directory))
 264         (bootstrap-version 5))
 265     (unless (file-exists-p bootstrap-file)
 266       (with-current-buffer
 267           (url-retrieve-synchronously
 268            "https://raw.githubusercontent.com/raxod502/straight.el/develop/install.el"
 269            'silent 'inhibit-cookies)
 270         (goto-char (point-max))
 271         (eval-print-last-sexp)))
 272     (load bootstrap-file nil 'nomessage)))
 273
 274 ;; Solid rocket booster ignition...
 275
 276 (defun a/build-init ()
 277   (a/bootstrap-straight)
 278   (byte-compile-file "init.el"))
 279
 280 (a/bootstrap-straight)
 281
 282 ;; We have lift off!
 283
 284 (setq straight-use-package-by-default t)
 285 #+end_src
 286
 287 Since we enable =straight.el='s =straight-use-package-by-default=
 288 integration, we will define a =use-feature= for plain ole
 289 =use-package= without any of the =straight.el= stuff.
 290
 291 #+begin_src emacs-lisp
 292 (defmacro use-feature (name &rest args)
 293   "Like `use-package', but with `straight-use-package-by-default' disabled."
 294   (declare (indent defun))
 295   `(use-package ,name
 296      :straight nil
 297      ,@args))
 298 #+end_src
 299
 300 *** =use-package=
 301
 302 #+begin_quote
 303 A use-package declaration for simplifying your .emacs
 304 #+end_quote
 305
 306 [[https://github.com/jwiegley/use-package][use-package]] is an awesome utility for managing and configuring
 307 packages (in our case especially the latter) in a neatly organized way
 308 and without compromising on performance.
 309
 310 #+begin_src emacs-lisp
 311 (straight-use-package 'use-package)
 312 (if nil                             ; set to t when need to debug init
 313     (progn
 314       (setq use-package-verbose t
 315             use-package-expand-minimally nil
 316             use-package-compute-statistics t
 317             debug-on-error t)
 318       (require 'use-package))
 319   (setq use-package-verbose nil
 320         use-package-expand-minimally t))
 321
 322 (setq use-package-always-defer t)
 323 #+end_src
 324
 325 *** Epkg
 326
 327 #+begin_quote
 328 Browse the Emacsmirror package database
 329 #+end_quote
 330
 331 Epkg provides access to a local copy of the [[https://emacsmirror.net][Emacsmirror]] package
 332 database, low-level functions for querying the database, and a
 333 =package.el=-like user interface for browsing the available packages.
 334
 335 #+begin_src emacs-lisp
 336 (require 'bind-key)
 337 (use-package epkg
 338   :commands (epkg-list-packages epkg-describe-package)
 339   :bind
 340   (("C-c p e d" . epkg-describe-package)
 341    ("C-c p e p" . epkg-list-packages))
 342   :config
 343   (setq epkg-repository "~/.emacs.d/straight/repos/epkgs/")
 344   (eval-when-compile (defvar ivy-initial-inputs-alist))
 345   (with-eval-after-load 'ivy
 346     (add-to-list
 347      'ivy-initial-inputs-alist '(epkg-describe-package . "^") t)))
 348 #+end_src
 349
 350 ** No littering in =~/.emacs.d=
 351
 352 #+begin_quote
 353 Help keeping ~/.emacs.d clean
 354 #+end_quote
 355
 356 By default, even for Emacs' built-in packages, the configuration files
 357 and persistent data are all over the place. Use =no-littering= to help
 358 contain the mess.
 359
 360 #+begin_src emacs-lisp
 361 (use-package no-littering
 362   :demand t
 363   :config
 364   (savehist-mode 1)
 365   (add-to-list 'savehist-additional-variables 'kill-ring)
 366   (save-place-mode 1)
 367   (setq auto-save-file-name-transforms
 368         `((".*" ,(no-littering-expand-var-file-name "auto-save/") t))))
 369 #+end_src
 370
 371 ** Custom file (=custom.el=)
 372
 373 I'm not planning on using the custom file much, but even so, I
 374 definitely don't want it mixing with =init.el=. So, here; let's give
 375 it it's own file. While at it, treat themes as safe.
 376
 377 #+begin_src emacs-lisp
 378 (use-feature custom
 379   :no-require t
 380   :config
 381   (setq custom-file (no-littering-expand-etc-file-name "custom.el"))
 382   (when (file-exists-p custom-file)
 383     (load custom-file))
 384   (setf custom-safe-themes t))
 385 #+end_src
 386
 387 ** Secrets file
 388
 389 Load the secrets file if it exists, otherwise show a warning.
 390
 391 #+begin_src emacs-lisp
 392 (with-demoted-errors
 393     (load (no-littering-expand-etc-file-name "secrets")))
 394 #+end_src
 395
 396 ** Better =$PATH= handling
 397
 398 Let's use [[https://github.com/purcell/exec-path-from-shell][exec-path-from-shell]] to make Emacs use the =$PATH= as set up
 399 in my shell.
 400
 401 #+begin_src emacs-lisp
 402 (use-package exec-path-from-shell
 403   :defer 1
 404   :init
 405   (setq exec-path-from-shell-arguments           nil
 406         exec-path-from-shell-check-startup-files nil)
 407   :config
 408   (exec-path-from-shell-initialize)
 409   ;; while we're at it, let's fix access to our running ssh-agent
 410   (exec-path-from-shell-copy-env "SSH_AGENT_PID")
 411   (exec-path-from-shell-copy-env "SSH_AUTH_SOCK"))
 412 #+end_src
 413
 414 ** COMMENT Only one custom theme at a time
 415
 416 #+begin_src emacs-lisp
 417 (defadvice load-theme (before clear-previous-themes activate)
 418   "Clear existing theme settings instead of layering them"
 419   (mapc #'disable-theme custom-enabled-themes))
 420 #+end_src
 421
 422 ** Server
 423
 424 Start server if not already running. Alternatively, can be done by
 425 issuing =emacs --daemon= in the terminal, which can be automated with
 426 a systemd service or using =brew services start emacs= on macOS. I use
 427 Emacs as my window manager (via EXWM), so I always start Emacs on
 428 login; so starting the server from inside Emacs is good enough for me.
 429
 430 See [[https://www.gnu.org/software/emacs/manual/html_node/emacs/Emacs-Server.html#Emacs-Server][Using Emacs as a Server]].
 431
 432 #+begin_src emacs-lisp
 433 (use-feature server
 434   :defer 1
 435   :config (or (server-running-p) (server-mode)))
 436 #+end_src
 437
 438 ** COMMENT Unicode support
 439
 440 Font stack with better unicode support, around =Ubuntu Mono= and
 441 =Hack=.
 442
 443 #+begin_src emacs-lisp
 444 (dolist (ft (fontset-list))
 445   (set-fontset-font
 446    ft
 447    'unicode
 448    (font-spec :name "Source Code Pro" :size 14))
 449   (set-fontset-font
 450    ft
 451    'unicode
 452    (font-spec :name "DejaVu Sans Mono")
 453    nil
 454    'append)
 455   ;; (set-fontset-font
 456   ;;  ft
 457   ;;  'unicode
 458   ;;  (font-spec
 459   ;;   :name "Symbola monospacified for DejaVu Sans Mono")
 460   ;;  nil
 461   ;;  'append)
 462   ;; (set-fontset-font
 463   ;;  ft
 464   ;;  #x2115  ; ℕ
 465   ;;  (font-spec :name "DejaVu Sans Mono")
 466   ;;  nil
 467   ;;  'append)
 468   (set-fontset-font
 469    ft
 470    (cons ?Α ?ω)
 471    (font-spec :name "DejaVu Sans Mono" :size 14)
 472    nil
 473    'prepend))
 474 #+end_src
 475
 476 ** Gentler font resizing
 477
 478 #+begin_src emacs-lisp
 479 (setq text-scale-mode-step 1.05)
 480 #+end_src
 481
 482 ** Focus follows mouse
 483
 484 I’d like focus to follow the mouse when I move the cursor from one
 485 window to the next.
 486
 487 #+begin_src emacs-lisp
 488 (setq mouse-autoselect-window t)
 489 #+end_src
 490
 491 Let’s define a function to conveniently disable this for certain
 492 buffers and/or modes.
 493
 494 #+begin_src emacs-lisp
 495 (defun a/no-mouse-autoselect-window ()
 496   (make-local-variable 'mouse-autoselect-window)
 497   (setq mouse-autoselect-window nil))
 498 #+end_src
 499
 500 ** Better scrolling (arguably)
 501
 502 #+begin_src emacs-lisp
 503 (setq ;; scroll-margin 1
 504       ;; scroll-conservatively 10000
 505       scroll-step 1
 506       scroll-conservatively 10
 507       scroll-preserve-screen-position 1)
 508
 509 (use-feature mwheel
 510   :defer 1
 511   :config
 512   (setq mouse-wheel-scroll-amount '(1 ((shift) . 1)) ; one line at a time
 513         mouse-wheel-progressive-speed nil            ; don't accelerate scrolling
 514         mouse-wheel-follow-mouse t))                 ; scroll window under mouse
 515
 516 (use-feature pixel-scroll
 517   :defer 1
 518   :config (pixel-scroll-mode 1))
 519 #+end_src
 520
 521 ** Ask for GPG passphrase in minibuffer
 522
 523 #+begin_src emacs-lisp
 524 (setq epg-pinentry-mode 'loopback)
 525 #+end_src
 526
 527 ** Libraries
 528
 529 #+begin_src emacs-lisp
 530 (require 'cl-lib)
 531 (require 'subr-x)
 532 #+end_src
 533
 534 ** Useful utilities
 535
 536 Convenience macro for =setq='ing multiple variables to the same value:
 537
 538 #+begin_src emacs-lisp
 539 (defmacro a/setq-every (value &rest vars)
 540   "Set all the variables from VARS to value VALUE."
 541   (declare (indent defun) (debug t))
 542   `(progn ,@(mapcar (lambda (x) (list 'setq x value)) vars)))
 543 #+end_src
 544
 545 The following process-related stuff from [[https://github.com/alezost/emacs-config][alezost's emacs-config]].
 546
 547 #+begin_src emacs-lisp
 548 (defun a/start-process (program &rest args)
 549   "Same as `start-process', but doesn't bother about name and buffer."
 550   (let ((process-name (concat program "_process"))
 551         (buffer-name  (generate-new-buffer-name
 552                        (concat program "_output"))))
 553     (apply #'start-process
 554            process-name buffer-name program args)))
 555
 556 (defun a/dired-start-process (program &optional args)
 557   "Open current file with a PROGRAM."
 558   ;; Shell command looks like this: "program [ARGS]... FILE" (ARGS can
 559   ;; be nil, so remove it).
 560   (apply #'a/start-process
 561          program
 562          (remove nil (list args (dired-get-file-for-visit)))))
 563 #+end_src
 564
 565 * Core
 566 :PROPERTIES:
 567 :CUSTOM_ID: core
 568 :END:
 569
 570 ** Defaults
 571
 572 *** Time and battery in mode-line
 573
 574 Enable displaying time and battery in the mode-line, since I'm not
 575 using the Xfce panel anymore. Also, I don't need to see the load
 576 average on a regular basis, so disable that.
 577
 578 Note: using =i3status= on sway at the moment, so disabling this.
 579
 580 #+begin_src emacs-lisp :tangle no
 581 (use-package time
 582   :init
 583   (setq display-time-default-load-average nil)
 584   :config
 585   (display-time-mode))
 586
 587 (use-package battery
 588   :config
 589   (display-battery-mode))
 590 #+end_src
 591
 592 *** Smaller fringe
 593
 594 Might want to set the fringe to a smaller value, especially if using
 595 EXWM. I'm fine with the default for now.
 596
 597 #+begin_src emacs-lisp
 598 ;; (fringe-mode '(3 . 1))
 599 (fringe-mode nil)
 600 #+end_src
 601
 602 *** Disable disabled commands
 603
 604 Emacs disables some commands by default that could persumably be
 605 confusing for novice users. Let's disable that.
 606
 607 #+begin_src emacs-lisp
 608 (setq disabled-command-function nil)
 609 #+end_src
 610
 611 *** Kill-ring
 612
 613 Save what I copy into clipboard from other applications into Emacs'
 614 kill-ring, which would allow me to still be able to easily access it
 615 in case I kill (cut or copy) something else inside Emacs before
 616 yanking (pasting) what I'd originally intended to.
 617
 618 #+begin_src emacs-lisp
 619 (setq save-interprogram-paste-before-kill t)
 620 #+end_src
 621
 622 *** Minibuffer
 623
 624 #+begin_src emacs-lisp
 625 (setq enable-recursive-minibuffers t
 626       resize-mini-windows t)
 627 #+end_src
 628
 629 *** Lazy-person-friendly yes/no prompts
 630
 631 Lazy people would prefer to type fewer keystrokes, especially for yes
 632 or no questions. I'm lazy.
 633
 634 #+begin_src emacs-lisp
 635 (defalias 'yes-or-no-p #'y-or-n-p)
 636 #+end_src
 637
 638 *** Startup screen and =*scratch*=
 639
 640 Firstly, let Emacs know that I'd like to have =*scratch*= as my
 641 startup buffer.
 642
 643 #+begin_src emacs-lisp
 644 (setq initial-buffer-choice t)
 645 #+end_src
 646
 647 Now let's customize the =*scratch*= buffer a bit. First off, I don't
 648 need the default hint.
 649
 650 #+begin_src emacs-lisp
 651 (setq initial-scratch-message nil)
 652 #+end_src
 653
 654 Also, let's use Text mode as the major mode, in case I want to
 655 customize it (=*scratch*='s default major mode, Fundamental mode,
 656 can't really be customized).
 657
 658 #+begin_src emacs-lisp
 659 (setq initial-major-mode 'text-mode)
 660 #+end_src
 661
 662 Inhibit the buffer list when more than 2 files are loaded.
 663
 664 #+begin_src emacs-lisp
 665 (setq inhibit-startup-buffer-menu t)
 666 #+end_src
 667
 668 I don't really need to see the startup screen or echo area message
 669 either.
 670
 671 #+begin_src emacs-lisp
 672 (advice-add #'display-startup-echo-area-message :override #'ignore)
 673 (setq inhibit-startup-screen t
 674       inhibit-startup-echo-area-message user-login-name)
 675 #+end_src
 676
 677 *** More useful frame titles
 678
 679 Show either the file name or the buffer name (in case the buffer isn't
 680 visiting a file). Borrowed from Emacs Prelude.
 681
 682 #+begin_src emacs-lisp
 683 (setq frame-title-format
 684       '("" invocation-name " - "
 685         (:eval (if (buffer-file-name)
 686                    (abbreviate-file-name (buffer-file-name))
 687                  "%b"))))
 688 #+end_src
 689
 690 *** Backups
 691
 692 Emacs' default backup settings aren't that great. Let's use more
 693 sensible options. See documentation for the ~make-backup-file~
 694 variable.
 695
 696 #+begin_src emacs-lisp
 697 (setq backup-by-copying t
 698       version-control t
 699       delete-old-versions t)
 700 #+end_src
 701
 702 *** Auto revert
 703
 704 Enable automatic reloading of changed buffers and files.
 705
 706 #+begin_src emacs-lisp
 707 (global-auto-revert-mode 1)
 708 (setq auto-revert-verbose nil
 709       global-auto-revert-non-file-buffers nil)
 710 #+end_src
 711
 712 *** Always use space for indentation
 713
 714 #+begin_src emacs-lisp
 715 (setq-default
 716  indent-tabs-mode nil
 717  require-final-newline t
 718  tab-width 4)
 719 #+end_src
 720
 721 *** Winner mode
 722
 723 Enable =winner-mode=.
 724
 725 #+begin_src emacs-lisp
 726 (winner-mode 1)
 727 #+end_src
 728
 729 *** Don’t display =*compilation*= on success
 730
 731 Based on https://stackoverflow.com/a/17788551, with changes to use
 732 =cl-letf= instead of the now obsolete =flet=.
 733
 734 #+begin_src emacs-lisp
 735 (with-eval-after-load 'compile
 736   (defun a/compilation-finish-function (buffer outstr)
 737     (unless (string-match "finished" outstr)
 738       (switch-to-buffer-other-window buffer))
 739     t)
 740
 741   (setq compilation-finish-functions #'a/compilation-finish-function)
 742
 743   (require 'cl-macs)
 744
 745   (defadvice compilation-start
 746       (around inhibit-display
 747               (command &optional mode name-function highlight-regexp))
 748     (if (not (string-match "^\\(find\\|grep\\)" command))
 749         (cl-letf (((symbol-function 'display-buffer) #'ignore))
 750           (save-window-excursion ad-do-it))
 751       ad-do-it))
 752   (ad-activate 'compilation-start))
 753 #+end_src
 754
 755 *** Search for non-ASCII characters
 756
 757 I’d like non-ASCII characters such as ‘’“”«»‹›áⓐ𝒶 to be selected when
 758 I search for their ASCII counterpart.  Shoutout to [[http://endlessparentheses.com/new-in-emacs-25-1-easily-search-non-ascii-characters.html][endlessparentheses]]
 759 for this.
 760
 761 #+begin_src emacs-lisp
 762 (setq search-default-mode #'char-fold-to-regexp)
 763
 764 ;; uncomment to extend this behaviour to query-replace
 765 ;; (setq replace-char-fold t)
 766 #+end_src
 767
 768 *** Cursor shape
 769
 770 #+begin_src emacs-lisp
 771 (setq-default cursor-type 'bar)
 772 #+end_src
 773
 774 *** Allow scrolling in Isearch
 775
 776 #+begin_src emacs-lisp
 777 (setq isearch-allow-scroll t)
 778 #+end_src
 779
 780 ** Bindings
 781
 782 Some bindings for functions from built-in GNU Emacs packages:
 783
 784 #+begin_src emacs-lisp
 785 (bind-keys
 786  ("C-c a i" . ielm)
 787
 788  ("C-c e b" . eval-buffer)
 789  ("C-c e r" . eval-region)
 790
 791  ("C-c e i" . emacs-init-time)
 792  ("C-c e u" . emacs-uptime)
 793
 794  ("C-c F m" . make-frame-command)
 795  ("C-c F d" . delete-frame)
 796  ("C-c F D" . delete-other-frames)
 797
 798  ("C-c o"   . other-window)
 799
 800  ("C-S-h C" . describe-char)
 801  ("C-S-h F" . describe-face)
 802
 803  ("C-x k"   . kill-this-buffer)
 804  ("C-x K"   . kill-buffer)
 805
 806  ("s-p"     . beginning-of-buffer)
 807  ("s-n"     . end-of-buffer))
 808 #+end_src
 809
 810 While at it, let's bind a few for some =straight-*= functions too:
 811
 812 #+begin_src emacs-lisp
 813 (bind-keys
 814  :prefix-map a/straight-prefix-map
 815  :prefix "C-c p s"
 816  ("u" . straight-use-package)
 817  ("f" . straight-freeze-versions)
 818  ("t" . straight-thaw-versions)
 819  ("P" . straight-prune-build)
 820  ("r" . straight-get-recipe)
 821  ;; M-x ^straight-.*-all$
 822  ("a c" . straight-check-all)
 823  ("a f" . straight-fetch-all)
 824  ("a m" . straight-merge-all)
 825  ("a n" . straight-normalize-all)
 826  ("a F" . straight-pull-all)
 827  ("a P" . straight-push-all)
 828  ("a r" . straight-rebuild-all)
 829  ;; M-x ^straight-.*-package$
 830  ("p c" . straight-check-package)
 831  ("p f" . straight-fetch-package)
 832  ("p m" . straight-merge-package)
 833  ("p n" . straight-normalize-package)
 834  ("p F" . straight-pull-package)
 835  ("p P" . straight-push-package)
 836  ("p r" . straight-rebuild-package))
 837 #+end_src
 838
 839 ** Packages
 840
 841 The packages in this section are absolutely essential to my everyday
 842 workflow, and they play key roles in how I do my computing. They
 843 immensely enhance the Emacs experience for me; both using Emacs, and
 844 customizing it.
 845
 846 *** [[https://github.com/emacscollective/auto-compile][auto-compile]]
 847
 848 #+begin_src emacs-lisp
 849 (use-package auto-compile
 850   :demand t
 851   :config
 852   (auto-compile-on-load-mode)
 853   (auto-compile-on-save-mode)
 854   (setq auto-compile-display-buffer               nil
 855         auto-compile-mode-line-counter            t
 856         auto-compile-source-recreate-deletes-dest t
 857         auto-compile-toggle-deletes-nonlib-dest   t
 858         auto-compile-update-autoloads             t)
 859   (add-hook 'auto-compile-inhibit-compile-hook
 860             'auto-compile-inhibit-compile-detached-git-head))
 861 #+end_src
 862
 863 *** [[https://orgmode.org/][Org]]
 864
 865 #+begin_quote
 866 Org mode is for keeping notes, maintaining TODO lists, planning
 867 projects, and authoring documents with a fast and effective plain-text
 868 system.
 869 #+end_quote
 870
 871 In short, my favourite way of life.
 872
 873 First, we have to resort to a [[https://github.com/raxod502/straight.el#installing-org-with-straightel][hack]] to be able to use the correct
 874 latest version of Org from upstream.
 875
 876 #+begin_src emacs-lisp
 877   (use-package git)
 878
 879   (defun org-git-version ()
 880     "The Git version of org-mode.
 881   Inserted by installing org-mode or when a release is made."
 882     (require 'git)
 883     (let ((git-repo (expand-file-name
 884                      "straight/repos/org/" user-emacs-directory)))
 885       (string-trim
 886        (git-run "describe"
 887                 "--match=release\*"
 888                 "--abbrev=6"
 889                 "HEAD"))))
 890
 891   (defun org-release ()
 892     "The release version of org-mode.
 893   Inserted by installing org-mode or when a release is made."
 894     (require 'git)
 895     (let ((git-repo (expand-file-name
 896                      "straight/repos/org/" user-emacs-directory)))
 897       (string-trim
 898        (string-remove-prefix
 899         "release_"
 900         (git-run "describe"
 901                  "--match=release\*"
 902                  "--abbrev=0"
 903                  "HEAD")))))
 904
 905 (provide 'org-version)
 906 #+end_src
 907
 908 We will use the =org-plus-contrib= package to get the whole deal:
 909
 910 #+begin_src emacs-lisp
 911 (straight-use-package 'org-plus-contrib)
 912 #+end_src
 913
 914 And here's where my actual Org configurations begin:
 915
 916 #+begin_src emacs-lisp
 917 (use-feature org
 918   :defer 2
 919   :config
 920   (setq org-src-tab-acts-natively t
 921         org-src-preserve-indentation nil
 922         org-edit-src-content-indentation 0
 923         org-email-link-description-format "Email %c: %s" ; %.30s
 924         org-highlight-latex-and-related '(entities)
 925         org-use-speed-commands t
 926         org-startup-folded 'content
 927         org-catch-invisible-edits 'show-and-error
 928         org-log-done 'time)
 929   (add-to-list 'org-structure-template-alist '("L" . "src emacs-lisp") t)
 930   :bind (:map org-mode-map ("M-L" . org-insert-last-stored-link))
 931   :hook ((org-mode . org-indent-mode)
 932          (org-mode . auto-fill-mode)
 933          (org-mode . flyspell-mode))
 934   :custom
 935   (org-latex-packages-alist '(("" "listings") ("" "color")))
 936   :custom-face
 937   '(org-block-begin-line ((t (:foreground "#5a5b5a" :background "#1d1f21"))))
 938   '(org-block ((t (:background "#1d1f21"))))
 939   '(org-latex-and-related ((t (:foreground "#b294bb")))))
 940
 941 (use-feature ox-latex
 942   :after ox
 943   :config
 944   (setq org-latex-listings 'listings
 945         ;; org-latex-prefer-user-labels t
 946         )
 947   (add-to-list 'org-latex-classes
 948                '("IEEEtran" "\\documentclass[11pt]{IEEEtran}"
 949                  ("\\section{%s}"       . "\\section*{%s}")
 950                  ("\\subsection{%s}"    . "\\subsection*{%s}")
 951                  ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
 952                  ("\\paragraph{%s}"     . "\\paragraph*{%s}")
 953                  ("\\subparagraph{%s}"  . "\\subparagraph*{%s}"))
 954                t)
 955   (require 'ox-beamer))
 956 #+end_src
 957
 958 **** asynchronous tangle
 959
 960 =a/async-babel-tangle= is a function closely inspired by [[https://github.com/dieggsy/dotfiles/tree/cc10edf7701958eff1cd94d4081da544d882a28c/emacs.d#dotfiles][dieggsy's
 961 d/async-babel-tangle]] which uses [[https://github.com/jwiegley/emacs-async][async]] to asynchronously tangle an org
 962 file.
 963
 964 #+begin_src emacs-lisp
 965 (with-eval-after-load 'org
 966   (defvar a/show-async-tangle-results nil
 967     "Keep *emacs* async buffers around for later inspection.")
 968
 969   (defvar a/show-async-tangle-time nil
 970     "Show the time spent tangling the file.")
 971
 972   (defvar a/async-tangle-post-compile
 973     (when a/byte-compiled-init "make build-init")
 974     "If non-nil, pass to `compile' after successful tangle.")
 975
 976   ;; TODO: look into why directly byte-compiling init.el causes a
 977   ;; number of problems, including magit-status not loading (busy
 978   ;; waiting).
 979   (defvar a/async-tangle-byte-recompile nil
 980     "If non-nil, byte-recompile the file on successful tangle.")
 981
 982   (defun a/async-babel-tangle ()
 983     "Tangle org file asynchronously."
 984     (interactive)
 985     (let* ((file-tangle-start-time (current-time))
 986            (file (buffer-file-name))
 987            (file-nodir (file-name-nondirectory file))
 988            ;; (async-quiet-switch "-q")
 989            (file-noext (file-name-sans-extension file)))
 990       (async-start
 991        `(lambda ()
 992           (require 'org)
 993           (org-babel-tangle-file ,file))
 994        (unless a/show-async-tangle-results
 995          `(lambda (result)
 996             (if result
 997                 (progn
 998                   ;; (setq byte-compile-warnings '(not noruntime unresolved))
 999                   (message "Tangled %s%s"
1000                            ,file-nodir
1001                            (if a/show-async-tangle-time
1002                                (format " (%.3fs)"
1003                                        (float-time (time-subtract (current-time)
1004                                                                   ',file-tangle-start-time)))
1005                              ""))
1006                   (when a/async-tangle-post-compile
1007                     (compile a/async-tangle-post-compile))
1008                   (when a/async-tangle-byte-recompile
1009                     (byte-recompile-file (concat ,file-noext ".el"))))
1010               (message "Tangling %s failed" ,file-nodir))))))))
1011
1012 (add-to-list
1013  'safe-local-variable-values
1014  '(eval add-hook 'after-save-hook #'a/async-babel-tangle 'append 'local))
1015 #+end_src
1016
1017 *** [[https://magit.vc/][Magit]]
1018
1019 #+begin_quote
1020 It's Magit! A Git porcelain inside Emacs.
1021 #+end_quote
1022
1023 Not just how I do git, but /the/ way to do git.
1024
1025 #+begin_src emacs-lisp
1026 (use-package magit
1027   :defer 2
1028   :bind (("C-x g" . magit-status)
1029          ("s-g s" . magit-status)
1030          ("s-g l" . magit-log-buffer-file))
1031   :config
1032   (magit-add-section-hook 'magit-status-sections-hook
1033                           'magit-insert-modules
1034                           'magit-insert-stashes
1035                           'append)
1036   (setq
1037    magit-repository-directories '(("~/.emacs.d/" . 0)
1038                                   ("~/src/git/" . 1)))
1039   (nconc magit-section-initial-visibility-alist
1040          '(([unpulled status] . show)
1041            ([unpushed status] . show)))
1042   :custom-face (magit-diff-file-heading ((t (:weight normal)))))
1043 #+end_src
1044
1045 *** recentf
1046
1047 Recently opened files.
1048
1049 #+begin_src emacs-lisp
1050 (use-feature recentf
1051   :defer 0.5
1052   :config
1053   (add-to-list 'recentf-exclude "^/\\(?:ssh\\|su\\|sudo\\)?:")
1054   (setq recentf-max-saved-items 40))
1055 #+end_src
1056
1057 *** smex
1058
1059 #+begin_quote
1060 A smart M-x enhancement for Emacs.
1061 #+end_quote
1062
1063 Mostly because =counsel= needs it to remember history.
1064
1065 #+begin_src emacs-lisp
1066 (use-package smex)
1067 #+end_src
1068
1069 *** [[https://github.com/abo-abo/swiper][Ivy]] (and friends)
1070
1071 #+begin_quote
1072 Ivy - a generic completion frontend for Emacs, Swiper - isearch with
1073 an overview, and more. Oh, man!
1074 #+end_quote
1075
1076 There's no way I could top that, so I won't attempt to.
1077
1078 **** Ivy
1079
1080 #+begin_src emacs-lisp
1081 (use-package ivy
1082   :defer 0.6
1083   :bind
1084   (:map ivy-minibuffer-map
1085    ([escape] . keyboard-escape-quit)
1086    ([S-up]   . ivy-previous-history-element)
1087    ([S-down] . ivy-next-history-element)
1088    ("DEL"    . ivy-backward-delete-char))
1089   :config
1090   (setq ivy-wrap t)
1091   (ivy-mode 1)
1092   ;; :custom-face
1093   ;; (ivy-minibuffer-match-face-2 ((t (:background "#e99ce8" :weight semi-bold))))
1094   ;; (ivy-minibuffer-match-face-3 ((t (:background "#bbbbff" :weight semi-bold))))
1095   ;; (ivy-minibuffer-match-face-4 ((t (:background "#ffbbff" :weight semi-bold))))
1096 )
1097 #+end_src
1098
1099 **** Swiper
1100
1101 #+begin_src emacs-lisp
1102 (use-package swiper
1103   :after ivy
1104   :bind (("C-s"   . swiper)
1105          ("C-r"   . swiper)
1106          ("C-S-s" . isearch-forward)))
1107 #+end_src
1108
1109 **** Counsel
1110
1111 #+begin_src emacs-lisp
1112 (use-package counsel
1113   :after ivy
1114   :bind (([remap execute-extended-command] . counsel-M-x)
1115          ([remap find-file]                . counsel-find-file)
1116          ("s-r"                            . counsel-recentf)
1117          ("C-c x"                          . counsel-M-x)
1118          ("C-c f ."                        . counsel-find-file)
1119          :map minibuffer-local-map
1120          ("C-r" . counsel-minibuffer-history))
1121   :config
1122   (counsel-mode 1)
1123   (defalias 'locate #'counsel-locate))
1124 #+end_src
1125
1126 *** eshell
1127
1128 #+begin_src emacs-lisp
1129 (use-feature eshell
1130   :defer 2
1131   :commands eshell
1132   :bind ("C-c a s e" . eshell)
1133   :config
1134   (eval-when-compile (defvar eshell-prompt-regexp))
1135   (defun a/eshell-quit-or-delete-char (arg)
1136     (interactive "p")
1137     (if (and (eolp) (looking-back eshell-prompt-regexp nil))
1138         (eshell-life-is-too-much)
1139       (delete-char arg)))
1140
1141   (defun a/eshell-clear ()
1142     (interactive)
1143     (let ((inhibit-read-only t))
1144       (erase-buffer))
1145     (eshell-send-input))
1146
1147   (defun a/eshell-setup ()
1148     (make-local-variable 'company-idle-delay)
1149     (defvar company-idle-delay)
1150     (setq company-idle-delay nil)
1151     (bind-keys :map eshell-mode-map
1152                ("C-d"   . a/eshell-quit-or-delete-char)
1153                ("C-S-l" . a/eshell-clear)
1154                ("M-r"   . counsel-esh-history)
1155                ([tab]   . company-complete)))
1156
1157   :hook (eshell-mode . a/eshell-setup)
1158   :custom
1159   (eshell-hist-ignoredups t)
1160   (eshell-input-filter 'eshell-input-filter-initial-space))
1161 #+end_src
1162
1163 *** Ibuffer
1164
1165 #+begin_src emacs-lisp
1166 (use-feature ibuffer
1167   :bind
1168   (("C-x C-b" . ibuffer-other-window)
1169    :map ibuffer-mode-map
1170    ("P"   . ibuffer-backward-filter-group)
1171    ("N"   . ibuffer-forward-filter-group)
1172    ("M-p" . ibuffer-do-print)
1173    ("M-n" . ibuffer-do-shell-command-pipe-replace))
1174   :config
1175   ;; Use human readable Size column instead of original one
1176   (define-ibuffer-column size-h
1177     (:name "Size" :inline t)
1178     (cond
1179      ((> (buffer-size) 1000000) (format "%7.1fM" (/ (buffer-size) 1000000.0)))
1180      ((> (buffer-size) 100000) (format "%7.0fk" (/ (buffer-size) 1000.0)))
1181      ((> (buffer-size) 1000) (format "%7.1fk" (/ (buffer-size) 1000.0)))
1182      (t (format "%8d" (buffer-size)))))
1183   :custom
1184   (ibuffer-saved-filter-groups
1185    '(("default"
1186       ("dired" (mode . dired-mode))
1187       ("org"   (mode . org-mode))
1188       ("gnus"
1189        (or
1190         (mode . gnus-group-mode)
1191         (mode . gnus-summary-mode)
1192         (mode . gnus-article-mode)
1193         ;; not really, but...
1194         (mode . message-mode)))
1195       ("web"
1196        (or
1197         (mode . web-mode)
1198         (mode . css-mode)
1199         (mode . scss-mode)
1200         (mode . js2-mode)))
1201       ("shell"
1202        (or
1203         (mode . eshell-mode)
1204         (mode . shell-mode)
1205         (mode . term-mode)))
1206       ("programming"
1207        (or
1208         (mode . python-mode)
1209         (mode . c-mode)
1210         (mode . c++-mode)
1211         (mode . java-mode)
1212         (mode . emacs-lisp-mode)
1213         (mode . scheme-mode)
1214         (mode . haskell-mode)
1215         (mode . lean-mode)))
1216       ("emacs"
1217        (or
1218         (name . "^\\*scratch\\*$")
1219         (name . "^\\*Messages\\*$"))))))
1220   (ibuffer-formats
1221    '((mark modified read-only locked " "
1222            (name 18 18 :left :elide)
1223            " "
1224            (size-h 9 -1 :right)
1225            " "
1226            (mode 16 16 :left :elide)
1227            " " filename-and-process)
1228      (mark " "
1229            (name 16 -1)
1230            " " filename)))
1231   :hook (ibuffer . (lambda () (ibuffer-switch-to-saved-filter-groups "default"))))
1232 #+end_src
1233
1234 *** Outline
1235
1236 #+begin_src emacs-lisp
1237 (use-feature outline
1238   :hook (prog-mode . outline-minor-mode)
1239   :bind
1240   (:map
1241    outline-minor-mode-map
1242    ("<s-tab>"  . outline-toggle-children)
1243    ("M-p"      . outline-previous-visible-heading)
1244    ("M-n"      . outline-next-visible-heading)
1245    :prefix-map a/outline-prefix-map
1246    :prefix "s-o"
1247    ("TAB" . outline-toggle-children)
1248    ("a"   . outline-hide-body)
1249    ("H"   . outline-hide-body)
1250    ("S"   . outline-show-all)
1251    ("h"   . outline-hide-subtree)
1252    ("s"   . outline-show-subtree)))
1253 #+end_src
1254
1255 *** Dired
1256
1257 #+begin_src emacs-lisp
1258 (use-feature ls-lisp
1259   :custom (ls-lisp-dirs-first t))
1260
1261 (use-feature dired
1262   :config
1263   (setq dired-listing-switches "-alh"
1264         ls-lisp-use-insert-directory-program nil)
1265
1266   ;; easily diff 2 marked files
1267   ;; https://oremacs.com/2017/03/18/dired-ediff/
1268   (defun dired-ediff-files ()
1269     (interactive)
1270     (require 'dired-aux)
1271     (defvar ediff-after-quit-hook-internal)
1272     (let ((files (dired-get-marked-files))
1273           (wnd (current-window-configuration)))
1274       (if (<= (length files) 2)
1275           (let ((file1 (car files))
1276                 (file2 (if (cdr files)
1277                            (cadr files)
1278                          (read-file-name
1279                           "file: "
1280                           (dired-dwim-target-directory)))))
1281             (if (file-newer-than-file-p file1 file2)
1282                 (ediff-files file2 file1)
1283               (ediff-files file1 file2))
1284             (add-hook 'ediff-after-quit-hook-internal
1285                       (lambda ()
1286                         (setq ediff-after-quit-hook-internal nil)
1287                         (set-window-configuration wnd))))
1288         (error "no more than 2 files should be marked"))))
1289   :bind (:map dired-mode-map
1290               ("b"  . dired-up-directory)
1291               ("e"  . dired-ediff-files)
1292               ("E"  . dired-toggle-read-only)
1293               ("\\" . dired-hide-details-mode)
1294               ("z"  . (lambda ()
1295                         (interactive)
1296                         (a/dired-start-process "zathura"))))
1297   :hook (dired-mode . dired-hide-details-mode))
1298 #+end_src
1299
1300 *** Help
1301
1302 #+begin_src emacs-lisp
1303 (use-feature help
1304   :config
1305   (temp-buffer-resize-mode)
1306   (setq help-window-select t))
1307 #+end_src
1308
1309 *** Tramp
1310
1311 #+begin_src emacs-lisp
1312 (use-feature tramp
1313   :config
1314   (add-to-list 'tramp-default-proxies-alist '(nil "\\`root\\'" "/ssh:%h:"))
1315   (add-to-list 'tramp-default-proxies-alist '("localhost" nil nil))
1316   (add-to-list 'tramp-default-proxies-alist
1317                (list (regexp-quote (system-name)) nil nil)))
1318 #+end_src
1319
1320 *** Dash
1321
1322 #+begin_src emacs-lisp
1323 (use-package dash
1324   :config (dash-enable-font-lock))
1325 #+end_src
1326
1327 * Editing
1328 :PROPERTIES:
1329 :CUSTOM_ID: editing
1330 :END:
1331
1332 ** =diff-hl=
1333
1334 Highlight uncommitted changes in the left fringe.
1335
1336 #+begin_src emacs-lisp
1337 (use-package diff-hl
1338   :config
1339   (setq diff-hl-draw-borders nil)
1340   (global-diff-hl-mode)
1341   :hook (magit-post-refresh . diff-hl-magit-post-refresh))
1342 #+end_src
1343
1344 ** ElDoc
1345
1346 Display Lisp objects at point in the echo area.
1347
1348 #+begin_src emacs-lisp
1349 (use-feature eldoc
1350   :when (version< "25" emacs-version)
1351   :config (global-eldoc-mode))
1352 #+end_src
1353
1354 ** paren
1355
1356 Highlight matching parens.
1357
1358 #+begin_src emacs-lisp
1359 (use-feature paren
1360   :demand
1361   :config (show-paren-mode))
1362 #+end_src
1363
1364 ** simple (for column numbers)
1365
1366 #+begin_src emacs-lisp
1367 (use-feature simple
1368   :config (column-number-mode))
1369 #+end_src
1370
1371 ** =savehist=
1372
1373 Save minibuffer history.
1374
1375 #+begin_src emacs-lisp
1376 (use-feature savehist
1377   :config (savehist-mode))
1378 #+end_src
1379
1380 ** =saveplace=
1381
1382 Automatically save place in each file.
1383
1384 #+begin_src emacs-lisp
1385 (use-feature saveplace
1386   :when (version< "25" emacs-version)
1387   :config (save-place-mode))
1388 #+end_src
1389
1390 ** =prog-mode=
1391
1392 #+begin_src emacs-lisp
1393 (use-feature prog-mode
1394   :config (global-prettify-symbols-mode)
1395   (defun indicate-buffer-boundaries-left ()
1396     (setq indicate-buffer-boundaries 'left))
1397   (add-hook 'prog-mode-hook #'indicate-buffer-boundaries-left))
1398 #+end_src
1399
1400 ** =text-mode=
1401
1402 #+begin_src emacs-lisp
1403 (use-feature text-mode
1404   :hook ((text-mode . indicate-buffer-boundaries-left)
1405          (text-mode . abbrev-mode)))
1406 #+end_src
1407
1408 ** Company
1409
1410 #+begin_src emacs-lisp
1411 (use-package company
1412   :defer 3
1413   :bind
1414   (:map company-active-map
1415         ([tab]    . company-complete-common-or-cycle)
1416         ([escape] . company-abort))
1417   :custom
1418   (company-minimum-prefix-length 1)
1419   (company-selection-wrap-around t)
1420   (company-dabbrev-char-regexp "\\sw\\|\\s_\\|[-_]")
1421   (company-dabbrev-downcase nil)
1422   (company-dabbrev-ignore-case nil)
1423   :config
1424   (global-company-mode t))
1425 #+end_src
1426
1427 ** Flycheck
1428
1429 #+begin_src emacs-lisp
1430 (use-package flycheck
1431   :defer 3
1432   :hook (prog-mode . flycheck-mode)
1433   :bind
1434   (:map flycheck-mode-map
1435         ("M-P" . flycheck-previous-error)
1436         ("M-N" . flycheck-next-error))
1437   :config
1438   ;; Use the load-path from running Emacs when checking elisp files
1439   (setq flycheck-emacs-lisp-load-path 'inherit)
1440
1441   ;; Only flycheck when I actually save the buffer
1442   (setq flycheck-check-syntax-automatically '(mode-enabled save)))
1443
1444 ;; http://endlessparentheses.com/ispell-and-apostrophes.html
1445 (use-package ispell
1446   :defer 3
1447   :config
1448   ;; ’ can be part of a word
1449   (setq ispell-local-dictionary-alist
1450         `((nil "[[:alpha:]]" "[^[:alpha:]]"
1451                "['\x2019]" nil ("-B") nil utf-8)))
1452   ;; don't send ’ to the subprocess
1453   (defun endless/replace-apostrophe (args)
1454     (cons (replace-regexp-in-string
1455            "’" "'" (car args))
1456           (cdr args)))
1457   (advice-add #'ispell-send-string :filter-args
1458               #'endless/replace-apostrophe)
1459
1460   ;; convert ' back to ’ from the subprocess
1461   (defun endless/replace-quote (args)
1462     (if (not (derived-mode-p 'org-mode))
1463         args
1464       (cons (replace-regexp-in-string
1465              "'" "’" (car args))
1466             (cdr args))))
1467   (advice-add #'ispell-parse-output :filter-args
1468               #'endless/replace-quote))
1469 #+end_src
1470
1471 * Programming modes
1472 :PROPERTIES:
1473 :CUSTOM_ID: programming-modes
1474 :END:
1475
1476 ** Lisp
1477
1478 #+begin_src emacs-lisp
1479 (use-feature lisp-mode
1480   :config
1481   (add-hook 'emacs-lisp-mode-hook 'outline-minor-mode)
1482   (add-hook 'emacs-lisp-mode-hook 'reveal-mode)
1483   (defun indent-spaces-mode ()
1484     (setq indent-tabs-mode nil))
1485   (add-hook 'lisp-interaction-mode-hook #'indent-spaces-mode))
1486 #+end_src
1487
1488 ** [[http://alloytools.org][Alloy]] (with [[https://github.com/dwwmmn/alloy-mode][alloy-mode]])
1489
1490 #+begin_src emacs-lisp
1491 (use-package alloy-mode
1492   :straight (:host github :repo "dwwmmn/alloy-mode")
1493   :config (setq alloy-basic-offset 2))
1494 #+end_src
1495
1496 ** [[https://coq.inria.fr][Coq]] (with [[https://github.com/ProofGeneral/PG][Proof General]])
1497
1498 #+begin_src emacs-lisp
1499 (use-package proof-site  ; Proof General
1500   :straight proof-general)
1501 #+end_src
1502
1503 ** [[https://leanprover.github.io][Lean]] (with [[https://github.com/leanprover/lean-mode][lean-mode]])
1504
1505 #+begin_src emacs-lisp
1506 (eval-when-compile (defvar lean-mode-map))
1507 (use-package lean-mode
1508   :defer 1
1509   :bind (:map lean-mode-map
1510               ("S-SPC" . company-complete))
1511   :config
1512   (require 'lean-input)
1513   (setq default-input-method "Lean"
1514         lean-input-tweak-all '(lean-input-compose
1515                                (lean-input-prepend "/")
1516                                (lean-input-nonempty))
1517         lean-input-user-translations '(("/" "/")))
1518   (lean-input-setup))
1519   #+end_src
1520
1521 ** Haskell
1522
1523 *** [[https://github.com/haskell/haskell-mode][haskell-mode]]
1524
1525 #+begin_src emacs-lisp
1526 (use-package haskell-mode
1527   :config
1528   (setq haskell-indentation-layout-offset 4
1529         haskell-indentation-left-offset 4
1530         flycheck-checker 'haskell-hlint
1531         flycheck-disabled-checkers '(haskell-stack-ghc haskell-ghc)))
1532 #+end_src
1533
1534 *** [[https://github.com/jyp/dante][dante]]
1535
1536 #+begin_src emacs-lisp
1537 (use-package dante
1538   :after haskell-mode
1539   :commands dante-mode
1540   :hook (haskell-mode . dante-mode))
1541 #+end_src
1542
1543 *** [[https://github.com/mpickering/hlint-refactor-mode][hlint-refactor]]
1544
1545 Emacs bindings for [[https://github.com/ndmitchell/hlint][hlint]]'s refactor option. This requires the refact
1546 executable from [[https://github.com/mpickering/apply-refact][apply-refact]].
1547
1548 #+begin_src emacs-lisp
1549 (use-package hlint-refactor
1550   :after haskell-mode
1551   :bind (:map hlint-refactor-mode-map
1552               ("C-c l b" . hlint-refactor-refactor-buffer)
1553               ("C-c l r" . hlint-refactor-refactor-at-point))
1554   :hook (haskell-mode . hlint-refactor-mode))
1555 #+end_src
1556
1557 *** [[https://github.com/flycheck/flycheck-haskell][flycheck-haskell]]
1558
1559 #+begin_src emacs-lisp
1560 (use-package flycheck-haskell
1561   :after haskell-mode)
1562 #+end_src
1563
1564 *** [[https://github.com/ndmitchell/hlint/blob/20e116a043f2073c57b17b24ae6364b5e433ba7e/data/hs-lint.el][hs-lint.el]]
1565 :PROPERTIES:
1566 :header-args+: :tangle lisp/hs-lint.el :mkdirp yes
1567 :END:
1568
1569 Currently using =flycheck-haskell= with the =haskell-hlint= checker
1570 instead.
1571
1572 #+begin_src emacs-lisp :tangle no
1573 ;;; hs-lint.el --- minor mode for HLint code checking
1574
1575 ;; Copyright 2009 (C) Alex Ott
1576 ;;
1577 ;; Author: Alex Ott <alexott@gmail.com>
1578 ;; Keywords: haskell, lint, HLint
1579 ;; Requirements:
1580 ;; Status: distributed under terms of GPL2 or above
1581
1582 ;; Typical message from HLint looks like:
1583 ;;
1584 ;; /Users/ott/projects/lang-exp/haskell/test.hs:52:1: Eta reduce
1585 ;; Found:
1586 ;;   count1 p l = length (filter p l)
1587 ;; Why not:
1588 ;;   count1 p = length . filter p
1589
1590
1591 (require 'compile)
1592
1593 (defgroup hs-lint nil
1594   "Run HLint as inferior of Emacs, parse error messages."
1595   :group 'tools
1596   :group 'haskell)
1597
1598 (defcustom hs-lint-command "hlint"
1599   "The default hs-lint command for \\[hlint]."
1600   :type 'string
1601   :group 'hs-lint)
1602
1603 (defcustom hs-lint-save-files t
1604   "Save modified files when run HLint or no (ask user)"
1605   :type 'boolean
1606   :group 'hs-lint)
1607
1608 (defcustom hs-lint-replace-with-suggestions nil
1609   "Replace user's code with suggested replacements"
1610   :type 'boolean
1611   :group 'hs-lint)
1612
1613 (defcustom hs-lint-replace-without-ask nil
1614   "Replace user's code with suggested replacements automatically"
1615   :type 'boolean
1616   :group 'hs-lint)
1617
1618 (defun hs-lint-process-setup ()
1619   "Setup compilation variables and buffer for `hlint'."
1620   (run-hooks 'hs-lint-setup-hook))
1621
1622 ;; regex for replace suggestions
1623 ;;
1624 ;; ^\(.*?\):\([0-9]+\):\([0-9]+\): .*
1625 ;; Found:
1626 ;; \s +\(.*\)
1627 ;; Why not:
1628 ;; \s +\(.*\)
1629
1630 (defvar hs-lint-regex
1631   "^\\(.*?\\):\\([0-9]+\\):\\([0-9]+\\): .*[\n\C-m]Found:[\n\C-m]\\s +\\(.*\\)[\n\C-m]Why not:[\n\C-m]\\s +\\(.*\\)[\n\C-m]"
1632   "Regex for HLint messages")
1633
1634 (defun make-short-string (str maxlen)
1635   (if (< (length str) maxlen)
1636       str
1637     (concat (substring str 0 (- maxlen 3)) "...")))
1638
1639 (defun hs-lint-replace-suggestions ()
1640   "Perform actual replacement of suggestions"
1641   (goto-char (point-min))
1642   (while (re-search-forward hs-lint-regex nil t)
1643     (let* ((fname (match-string 1))
1644           (fline (string-to-number (match-string 2)))
1645           (old-code (match-string 4))
1646           (new-code (match-string 5))
1647           (msg (concat "Replace '" (make-short-string old-code 30)
1648                        "' with '" (make-short-string new-code 30) "'"))
1649           (bline 0)
1650           (eline 0)
1651           (spos 0)
1652           (new-old-code ""))
1653       (save-excursion
1654         (switch-to-buffer (get-file-buffer fname))
1655         (goto-char (point-min))
1656         (forward-line (1- fline))
1657         (beginning-of-line)
1658         (setf bline (point))
1659         (when (or hs-lint-replace-without-ask
1660                   (yes-or-no-p msg))
1661           (end-of-line)
1662           (setf eline (point))
1663           (beginning-of-line)
1664           (setf old-code (regexp-quote old-code))
1665           (while (string-match "\\\\ " old-code spos)
1666             (setf new-old-code (concat new-old-code
1667                                  (substring old-code spos (match-beginning 0))
1668                                  "\\ *"))
1669             (setf spos (match-end 0)))
1670           (setf new-old-code (concat new-old-code (substring old-code spos)))
1671           (remove-text-properties bline eline '(composition nil))
1672           (when (re-search-forward new-old-code eline t)
1673             (replace-match new-code nil t)))))))
1674
1675 (defun hs-lint-finish-hook (buf msg)
1676   "Function, that is executed at the end of HLint execution"
1677   (if hs-lint-replace-with-suggestions
1678       (hs-lint-replace-suggestions)
1679       (next-error 1 t)))
1680
1681 (define-compilation-mode hs-lint-mode "HLint"
1682   "Mode for check Haskell source code."
1683   (set (make-local-variable 'compilation-process-setup-function)
1684        'hs-lint-process-setup)
1685   (set (make-local-variable 'compilation-disable-input) t)
1686   (set (make-local-variable 'compilation-scroll-output) nil)
1687   (set (make-local-variable 'compilation-finish-functions)
1688        (list 'hs-lint-finish-hook))
1689   )
1690
1691 (defun hs-lint ()
1692   "Run HLint for current buffer with haskell source"
1693   (interactive)
1694   (save-some-buffers hs-lint-save-files)
1695   (compilation-start (concat hs-lint-command " \"" buffer-file-name "\"")
1696                      'hs-lint-mode))
1697
1698 (provide 'hs-lint)
1699 ;;; hs-lint.el ends here
1700 #+end_src
1701
1702 #+begin_src emacs-lisp :tangle no
1703 (use-package hs-lint
1704   :load-path "lisp/"
1705   :bind (:map haskell-mode-map
1706               ("C-c l l" . hs-lint)))
1707 #+end_src
1708
1709 ** Web
1710
1711 *** SGML and HTML
1712
1713 #+begin_src emacs-lisp
1714 (use-package sgml-mode
1715   :config
1716   (setq sgml-basic-offset 2))
1717 #+end_src
1718
1719 *** CSS and SCSS
1720
1721 #+begin_src emacs-lisp
1722 (use-package css-mode
1723   :config
1724   (setq css-indent-offset 2))
1725 #+end_src
1726
1727 *** Web mode
1728
1729 #+begin_src emacs-lisp
1730 (use-package web-mode
1731   :mode "\\.html\\'"
1732   :config
1733   (a/setq-every 2
1734     web-mode-code-indent-offset
1735     web-mode-css-indent-offset
1736     web-mode-markup-indent-offset))
1737 #+end_src
1738
1739 *** Emmet mode
1740
1741 #+begin_src emacs-lisp
1742 (use-package emmet-mode
1743   :after (:any web-mode css-mode sgml-mode)
1744   :bind* (("C-)" . emmet-next-edit-point)
1745           ("C-(" . emmet-prev-edit-point))
1746   :config
1747   (unbind-key "C-j" emmet-mode-keymap)
1748   (setq emmet-move-cursor-between-quotes t)
1749   :hook (web-mode css-mode html-mode sgml-mode))
1750 #+end_src
1751
1752 ** Java
1753
1754 *** COMMENT meghanada
1755
1756 #+begin_src emacs-lisp
1757 (use-package meghanada
1758   :bind
1759   (:map meghanada-mode-map
1760         (("C-M-o" . meghanada-optimize-import)
1761          ("C-M-t" . meghanada-import-all)))
1762   :hook (java-mode . meghanada-mode))
1763 #+end_src
1764
1765 *** COMMENT lsp-java
1766
1767 #+begin_comment
1768 dependencies:
1769
1770 ace-window
1771 avy
1772 bui
1773 company-lsp
1774 dap-mode
1775 lsp-java
1776 lsp-mode
1777 lsp-ui
1778 pfuture
1779 tree-mode
1780 treemacs
1781 #+end_comment
1782
1783 #+begin_src emacs-lisp
1784 (use-package treemacs
1785   :config (setq treemacs-never-persist t))
1786
1787 (use-package yasnippet
1788   :config
1789   ;; (yas-global-mode)
1790   )
1791
1792 (use-package lsp-mode
1793   :init (setq lsp-eldoc-render-all nil
1794               lsp-highlight-symbol-at-point nil)
1795   )
1796
1797 (use-package hydra)
1798
1799 (use-package company-lsp
1800   :after  company
1801   :config
1802   (setq company-lsp-cache-candidates t
1803         company-lsp-async t))
1804
1805 (use-package lsp-ui
1806   :config
1807   (setq lsp-ui-sideline-update-mode 'point))
1808
1809 (use-package lsp-java
1810   :config
1811   (add-hook 'java-mode-hook
1812             (lambda ()
1813               (setq-local company-backends (list 'company-lsp))))
1814
1815   (add-hook 'java-mode-hook 'lsp-java-enable)
1816   (add-hook 'java-mode-hook 'flycheck-mode)
1817   (add-hook 'java-mode-hook 'company-mode)
1818   (add-hook 'java-mode-hook 'lsp-ui-mode))
1819
1820 (use-package dap-mode
1821   :after lsp-mode
1822   :config
1823   (dap-mode t)
1824   (dap-ui-mode t))
1825
1826 (use-package dap-java
1827   :after (lsp-java))
1828
1829 (use-package lsp-java-treemacs
1830   :after (treemacs))
1831 #+end_src
1832
1833 *** eclim
1834
1835 #+begin_src emacs-lisp
1836 (use-package eclim
1837   :bind (:map eclim-mode-map ("S-SPC" . company-complete))
1838   :hook ((java-mode . eclim-mode)
1839          (eclim-mode . (lambda ()
1840                          (make-local-variable 'company-idle-delay)
1841                          (defvar company-idle-delay)
1842                          ;; (setq company-idle-delay 0.7)
1843                          (setq company-idle-delay nil))))
1844   :custom
1845   (eclim-auto-save nil)
1846   ;; (eclimd-default-workspace "~/src/eclipse-workspace-exp")
1847   (eclim-executable "~/.p2/pool/plugins/org.eclim_2.8.0/bin/eclim")
1848   (eclim-eclipse-dirs '("~/usr/eclipse/dsl-2018-09/eclipse")))
1849 #+end_src
1850
1851 ** geiser
1852
1853 #+begin_src emacs-lisp
1854 (use-package geiser)
1855
1856 (use-feature geiser-guile
1857   :config
1858   (setq geiser-guile-load-path "~/src/git/guix"))
1859 #+end_src
1860
1861 ** guix
1862
1863 #+begin_src emacs-lisp
1864 (use-package guix)
1865 #+end_src
1866
1867 * Emacs enhancements
1868 :PROPERTIES:
1869 :CUSTOM_ID: emacs-enhancements
1870 :END:
1871
1872 ** man
1873
1874 #+begin_src emacs-lisp
1875 (use-feature man
1876   :config (setq Man-width 80))
1877 #+end_src
1878
1879 ** [[https://github.com/justbur/emacs-which-key][which-key]]
1880
1881 #+begin_quote
1882 Emacs package that displays available keybindings in popup
1883 #+end_quote
1884
1885 #+begin_src emacs-lisp
1886 (use-package which-key
1887   :defer 1
1888   :config
1889   (which-key-add-key-based-replacements
1890     ;; prefixes for global prefixes and minor modes
1891     "C-c @"   "outline"
1892     "C-c !"   "flycheck"
1893     "C-c 8"   "typo"
1894     "C-c 8 -" "typo/dashes"
1895     "C-c 8 <" "typo/left-brackets"
1896     "C-c 8 >" "typo/right-brackets"
1897     "C-x 8"   "unicode"
1898     "C-x a"   "abbrev/expand"
1899     "C-x r"   "rectangle/register/bookmark"
1900     "C-x v"   "version control"
1901     ;; prefixes for my personal bindings
1902     "C-c a"   "applications"
1903     "C-c a s" "shells"
1904     "C-c p"   "package-management"
1905     "C-c p e" "package-management/epkg"
1906     "C-c p s" "straight.el"
1907     "C-c psa" "all"
1908     "C-c psp" "package"
1909     "C-c c"   "compile-and-comments"
1910     "C-c e"   "eval"
1911     "C-c f"   "files"
1912     "C-c F"   "frames"
1913     "C-S-h"   "help(ful)"
1914     "C-c m"   "multiple-cursors"
1915     "C-c P"   "projectile"
1916     "C-c P s" "projectile/search"
1917     "C-c P x" "projectile/execute"
1918     "C-c P 4" "projectile/other-window"
1919     "C-c q"   "boxquote"
1920     "s-g"     "magit"
1921     "s-o"     "outline"
1922     "s-t"     "themes")
1923
1924   ;; prefixes for major modes
1925   (which-key-add-major-mode-key-based-replacements 'message-mode
1926     "C-c f"   "footnote")
1927   (which-key-add-major-mode-key-based-replacements 'org-mode
1928     "C-c C-v" "org-babel")
1929   (which-key-add-major-mode-key-based-replacements 'web-mode
1930     "C-c C-a" "web/attributes"
1931     "C-c C-b" "web/blocks"
1932     "C-c C-d" "web/dom"
1933     "C-c C-e" "web/element"
1934     "C-c C-t" "web/tags")
1935
1936   (which-key-mode)
1937   :custom
1938   (which-key-add-column-padding 5)
1939   (which-key-max-description-length 32))
1940 #+end_src
1941
1942 ** theme
1943
1944 #+begin_src emacs-lisp
1945 (add-to-list 'custom-theme-load-path "~/.emacs.d/lisp")
1946 (load-theme 'tangomod t)
1947 #+end_src
1948
1949 ** smart-mode-line
1950
1951 #+begin_src emacs-lisp
1952 (use-package smart-mode-line
1953   :commands (sml/apply-theme)
1954   :demand
1955   :config
1956   (sml/setup))
1957 #+end_src
1958
1959 ** doom-themes
1960
1961 #+begin_src emacs-lisp
1962 (use-package doom-themes)
1963 #+end_src
1964
1965 ** theme helper functions
1966
1967 #+begin_src emacs-lisp
1968 (defvar a/org-mode-font-lock-keywords
1969   '(("[ \t]*\\(#\\+\\(BEGIN\\|END\\|begin\\|end\\)_\\(\\S-+\\)\\)[ \t]*\\([^\n:]*\\)"
1970       (1 '(:foreground "#5a5b5a" :background "#292b2b") t) ; directive
1971       (3 '(:foreground "#81a2be" :background "#292b2b") t) ; kind
1972       (4 '(:foreground "#c5c8c6") t))))                    ; title
1973
1974 (defun a/lights-on ()
1975   "Enable my favourite light theme."
1976   (interactive)
1977   (mapc #'disable-theme custom-enabled-themes)
1978   (load-theme 'tangomod t)
1979   (sml/apply-theme 'automatic)
1980   (font-lock-remove-keywords
1981    'org-mode a/org-mode-font-lock-keywords))
1982
1983 (defun a/lights-off ()
1984   "Go dark."
1985   (interactive)
1986   (mapc #'disable-theme custom-enabled-themes)
1987   (load-theme 'doom-tomorrow-night t)
1988   (sml/apply-theme 'automatic)
1989   (font-lock-add-keywords
1990    'org-mode a/org-mode-font-lock-keywords t))
1991
1992 (bind-keys
1993  ("s-t d" . a/lights-off)
1994  ("s-t l" . a/lights-on))
1995 #+end_src
1996
1997 ** [[https://github.com/bbatsov/crux][crux]]
1998
1999 #+begin_src emacs-lisp
2000 (use-package crux                       ; results in Waiting for git... [2 times]
2001   :defer 1
2002   :bind (("C-c b k" . crux-kill-other-buffers)
2003          ("C-c d"   . crux-duplicate-current-line-or-region)
2004          ("C-c D"   . crux-duplicate-and-comment-current-line-or-region)
2005          ("C-c f c" . crux-copy-file-preserve-attributes)
2006          ("C-c f d" . crux-delete-file-and-buffer)
2007          ("C-c f r" . crux-rename-file-and-buffer)
2008          ("C-c j"   . crux-top-join-line)
2009          ("C-S-j"   . crux-top-join-line)))
2010 #+end_src
2011
2012 ** [[https://github.com/alezost/mwim.el][mwim]]
2013
2014 #+begin_src emacs-lisp
2015 (use-package mwim
2016   :bind (("C-a"    . mwim-beginning-of-code-or-line)
2017          ("C-e"    . mwim-end-of-code-or-line)
2018          ("<home>" . mwim-beginning-of-line-or-code)
2019          ("<end>"  . mwim-end-of-line-or-code)))
2020 #+end_src
2021
2022 ** projectile
2023
2024 #+begin_src emacs-lisp
2025 (use-package projectile
2026   :bind-keymap ("C-c P" . projectile-command-map)
2027   :config
2028   (projectile-mode)
2029
2030   (defun my-projectile-invalidate-cache (&rest _args)
2031     ;; ignore the args to `magit-checkout'
2032     (projectile-invalidate-cache nil))
2033
2034   (eval-after-load 'magit-branch
2035     '(progn
2036        (advice-add 'magit-checkout
2037                    :after #'my-projectile-invalidate-cache)
2038        (advice-add 'magit-branch-and-checkout
2039                    :after #'my-projectile-invalidate-cache)))
2040   :custom (projectile-completion-system 'ivy))
2041 #+end_src
2042
2043 ** [[https://github.com/Wilfred/helpful][helpful]]
2044
2045 #+begin_src emacs-lisp
2046 (use-package helpful
2047   :defer 3
2048   :bind
2049   (("C-S-h c" . helpful-command)
2050    ("C-S-h f" . helpful-callable)        ; helpful-function
2051    ("C-S-h v" . helpful-variable)
2052    ("C-S-h k" . helpful-key)
2053    ("C-S-h p" . helpful-at-point)))
2054 #+end_src
2055
2056 ** [[https://github.com/EricCrosson/unkillable-scratch][unkillable-scratch]]
2057
2058 Make =*scratch*= and =*Messages*= unkillable.
2059
2060 #+begin_src emacs-lisp
2061 (use-package unkillable-scratch
2062   :defer 3
2063   :config
2064   (unkillable-scratch 1)
2065   :custom
2066   (unkillable-buffers '("^\\*scratch\\*$" "^\\*Messages\\*$")))
2067 #+end_src
2068
2069 ** [[https://github.com/davep/boxquote.el][boxquote.el]]
2070
2071 #+begin_example
2072 ,----
2073 | make pretty boxed quotes like this
2074 `----
2075 #+end_example
2076
2077 #+begin_src emacs-lisp
2078 (use-package boxquote
2079   :defer 3
2080   :bind
2081   (:prefix-map a/boxquote-prefix-map
2082    :prefix "C-c q"
2083    ("b"   . boxquote-buffer)
2084    ("B"   . boxquote-insert-buffer)
2085    ("d"   . boxquote-defun)
2086    ("F"   . boxquote-insert-file)
2087    ("hf"  . boxquote-describe-function)
2088    ("hk"  . boxquote-describe-key)
2089    ("hv"  . boxquote-describe-variable)
2090    ("hw"  . boxquote-where-is)
2091    ("k"   . boxquote-kill)
2092    ("p"   . boxquote-paragraph)
2093    ("q"   . boxquote-boxquote)
2094    ("r"   . boxquote-region)
2095    ("s"   . boxquote-shell-command)
2096    ("t"   . boxquote-text)
2097    ("T"   . boxquote-title)
2098    ("u"   . boxquote-unbox)
2099    ("U"   . boxquote-unbox-region)
2100    ("y"   . boxquote-yank)
2101    ("M-q" . boxquote-fill-paragraph)
2102    ("M-w" . boxquote-kill-ring-save)))
2103 #+end_src
2104
2105 Also see [[https://www.emacswiki.org/emacs/rebox2][rebox2]].
2106
2107 ** orgalist
2108
2109 #+begin_src emacs-lisp
2110 (use-package orgalist
2111   :after message
2112   :hook (message-mode . orgalist-mode))
2113 #+end_src
2114
2115 ** typo.el
2116
2117 #+begin_src emacs-lisp
2118 (use-package typo
2119   :defer 2
2120   :config
2121   (typo-global-mode 1)
2122   :hook (text-mode . typo-mode))
2123 #+end_src
2124
2125 ** hl-todo
2126
2127 #+begin_src emacs-lisp
2128 (use-package hl-todo
2129   :defer 4
2130   :config
2131   (global-hl-todo-mode))
2132 #+end_src
2133
2134 ** shrink-path
2135
2136 #+begin_src emacs-lisp
2137 (use-package shrink-path
2138   :defer 2
2139   :after eshell
2140   :config
2141   (defun +eshell/prompt ()
2142     (let ((base/dir (shrink-path-prompt default-directory)))
2143       (concat (propertize (car base/dir)
2144                           'face 'font-lock-comment-face)
2145               (propertize (cdr base/dir)
2146                           'face 'font-lock-constant-face)
2147               (propertize (+eshell--current-git-branch)
2148                           'face 'font-lock-function-name-face)
2149               "\n"
2150               ;; "λ"
2151               ;; (propertize "λ" 'face 'eshell-prompt)
2152               ;; needed for the input text to not have prompt face
2153               (propertize "λ " 'face 'default))))
2154
2155   (defun +eshell--current-git-branch ()
2156     (let ((branch (car (loop for match in (split-string (shell-command-to-string "git branch") "\n")
2157                              when (string-match "^\*" match)
2158                              collect match))))
2159       (if (not (eq branch nil))
2160           (concat " " (substring branch 2))
2161         "")))
2162   (setq eshell-prompt-regexp "\\(.*\n\\)*λ "
2163                          eshell-prompt-function #'+eshell/prompt))
2164 #+end_src
2165
2166 ** [[https://github.com/peterwvj/eshell-up][eshell-up]]
2167
2168 #+begin_src emacs-lisp
2169 (use-package eshell-up
2170   :after eshell
2171   :commands eshell-up)
2172 #+end_src
2173
2174 ** multi-term
2175
2176 #+begin_src emacs-lisp
2177 (use-package multi-term
2178   :defer 3
2179   :bind (("C-c a s m" . multi-term-dedicated-toggle)
2180          :map term-mode-map
2181          ("C-c C-j" . term-char-mode)
2182          :map term-raw-map
2183          ("C-c C-j" . term-line-mode))
2184   :config
2185   (setq multi-term-program "/bin/screen"
2186         ;; TODO: add separate bindings for connecting to existing
2187         ;; session vs. always creating a new one
2188         multi-term-dedicated-select-after-open-p t
2189         multi-term-dedicated-window-height 20
2190         multi-term-dedicated-max-window-height 30
2191         term-bind-key-alist
2192         '(("C-c C-c" . term-interrupt-subjob)
2193           ("C-c C-e" . term-send-esc)
2194           ("C-k" . kill-line)
2195           ("C-y" . term-paste)
2196           ("M-f" . term-send-forward-word)
2197           ("M-b" . term-send-backward-word)
2198           ("M-p" . term-send-up)
2199           ("M-n" . term-send-down)
2200           ("<C-backspace>" . term-send-backward-kill-word)
2201           ("<M-DEL>" . term-send-backward-kill-word)
2202           ("M-d" . term-send-delete-word)
2203           ("M-," . term-send-raw)
2204           ("M-." . comint-dynamic-complete))
2205         term-unbind-key-alist
2206         '("C-z" "C-x" "C-c" "C-h" "C-y" "<ESC>")))
2207 #+end_src
2208
2209 ** page-break-lines
2210
2211 #+begin_src emacs-lisp
2212 (use-package page-break-lines
2213   :config
2214   (global-page-break-lines-mode))
2215 #+end_src
2216
2217 ** expand-region
2218
2219 #+begin_src emacs-lisp
2220 (use-package expand-region
2221   :bind ("C-=" . er/expand-region))
2222 #+end_src
2223
2224 ** multiple-cursors
2225
2226 #+begin_src emacs-lisp
2227 (use-package multiple-cursors
2228   :bind
2229   (("C-S-<mouse-1>" . mc/add-cursor-on-click)
2230    (:prefix-map a/mc-prefix-map
2231                :prefix "C-c m"
2232                ("c" . mc/edit-lines)
2233                ("n" . mc/mark-next-like-this)
2234                ("p" . mc/mark-previous-like-this)
2235                ("a" . mc/mark-all-like-this))))
2236 #+end_src
2237
2238 ** forge
2239
2240 #+begin_src emacs-lisp
2241 (use-package forge
2242   :after magit
2243   :demand)
2244 #+end_src
2245
2246 ** yasnippet
2247
2248 #+begin_src emacs-lisp
2249 (use-package yasnippet
2250   :defer 3
2251   :config
2252   (defconst yas-verbosity-cur yas-verbosity)
2253   (setq yas-verbosity 2)
2254   (add-to-list 'yas-snippet-dirs "~/src/git/guix/etc/snippets")
2255   (yas-reload-all)
2256   (setq yas-verbosity yas-verbosity-cur)
2257   :hook
2258   (text-mode . yas-minor-mode))
2259 #+end_src
2260
2261 * Email
2262 :PROPERTIES:
2263 :CUSTOM_ID: email
2264 :END:
2265
2266 #+begin_src emacs-lisp
2267 (defvar a/maildir (expand-file-name "~/mail/"))
2268 (with-eval-after-load 'recentf
2269   (add-to-list 'recentf-exclude a/maildir))
2270 #+end_src
2271
2272 ** Gnus
2273
2274 #+begin_src emacs-lisp
2275 (setq
2276  a/gnus-init-file  (no-littering-expand-etc-file-name "gnus")
2277  mail-user-agent   'gnus-user-agent
2278  read-mail-command 'gnus)
2279
2280 (use-feature gnus
2281   :bind (("s-m"   . gnus)
2282          ("s-M"   . gnus-unplugged))
2283   :init
2284   (setq
2285    gnus-select-method '(nnnil "")
2286    gnus-secondary-select-methods
2287    '((nnimap "amin"
2288             (nnimap-stream plain)
2289             (nnimap-address "127.0.0.1")
2290             (nnimap-server-port 143)
2291             (nnimap-authenticator plain)
2292             (nnimap-user "amin@bndl.org"))
2293      (nnimap "uwaterloo"
2294              (nnimap-stream plain)
2295              (nnimap-address "127.0.0.1")
2296              (nnimap-server-port 143)
2297              (nnimap-authenticator plain)
2298              (nnimap-user "abandali@uwaterloo.ca"))
2299      (nnimap "csclub"
2300              (nnimap-stream plain)
2301              (nnimap-address "127.0.0.1")
2302              (nnimap-server-port 143)
2303              (nnimap-authenticator plain)
2304              (nnimap-user "abandali@csclub.uw")))
2305    gnus-message-archive-group "nnimap+amin:Sent"
2306    gnus-parameters
2307    '(("gnu.*"
2308       (gcc-self . t)))
2309    gnus-large-newsgroup  50
2310    gnus-home-directory   (no-littering-expand-var-file-name "gnus/")
2311    gnus-directory        (concat gnus-home-directory "news/")
2312    message-directory     (concat gnus-home-directory "mail/")
2313    nndraft-directory     (concat gnus-home-directory "drafts/")
2314    gnus-save-newsrc-file nil
2315    gnus-read-newsrc-file nil
2316    gnus-interactive-exit nil
2317    gnus-gcc-mark-as-read t)
2318   :config
2319   (require 'ebdb)
2320   (require 'ebdb-mua)
2321   (require 'ebdb-gnus))
2322
2323 (use-feature gnus-art
2324   :config
2325   (setq
2326    gnus-visible-headers
2327    (concat gnus-visible-headers "\\|^List-Id:\\|^X-RT-Originator:\\|^User-Agent:")
2328    gnus-sorted-header-list
2329    '("^From:" "^Subject:" "^Summary:" "^Keywords:"
2330      "^Followup-To:" "^To:" "^Cc:" "X-RT-Originator"
2331      "^Newsgroups:" "List-Id:" "^Organization:"
2332      "^User-Agent:" "^Date:")
2333   ;; local-lapsed article dates
2334   ;; from https://www.emacswiki.org/emacs/GnusFormatting#toc11
2335   gnus-article-date-headers '(user-defined)
2336   gnus-article-time-format
2337   (lambda (time)
2338     (let* ((date (format-time-string "%a, %d %b %Y %T %z" time))
2339            (local (article-make-date-line date 'local))
2340            (combined-lapsed (article-make-date-line date
2341                                                     'combined-lapsed))
2342            (lapsed (progn
2343                      (string-match " (.+" combined-lapsed)
2344                      (match-string 0 combined-lapsed))))
2345       (concat local lapsed))))
2346   (bind-keys
2347    :map gnus-article-mode-map
2348    ("r"   . gnus-article-reply-with-original)
2349    ("R"   . gnus-article-wide-reply-with-original)
2350    ("M-L" . org-store-link)))
2351
2352 (use-feature gnus-sum
2353   :bind (:map gnus-summary-mode-map
2354               :prefix-map a/gnus-summary-prefix-map
2355               :prefix "v"
2356               ("r" . gnus-summary-reply)
2357               ("w" . gnus-summary-wide-reply)
2358               ("v" . gnus-summary-show-raw-article))
2359   :config
2360   (bind-keys
2361    :map gnus-summary-mode-map
2362    ("r"   . gnus-summary-reply-with-original)
2363    ("R"   . gnus-summary-wide-reply-with-original)
2364    ("M-L" . org-store-link))
2365   :hook (gnus-summary-mode . a/no-mouse-autoselect-window))
2366
2367 (use-feature gnus-msg
2368   :config
2369   (setq gnus-posting-styles
2370         '((".*"
2371            (address "amin@bndl.org")
2372            (body "\nBest,\namin\n")
2373            (eval (setq a/message-cite-say-hi t)))
2374           ("gnu.*"
2375            (address "bandali@gnu.org")
2376            (eval (set (make-local-variable 'message-user-fqdn) "fencepost.gnu.org")))
2377           ((header "subject" "ThankCRM")
2378            (to "webmasters-comment@gnu.org")
2379            (body "\nAdded  to 2019supporters.html.\n\nMoving to campaigns.\n\n-amin\n")
2380            (eval (setq a/message-cite-say-hi nil)))
2381           ("nnimap\\+uwaterloo:.*"
2382            (address "abandali@uwaterloo.ca")
2383            (gcc "\"nnimap+uwaterloo:Sent Items\""))
2384           ("nnimap\\+csclub:.*"
2385            (address "abandali@csclub.uwaterloo.ca")
2386            (gcc "nnimap+csclub:Sent")))))
2387
2388 (use-feature gnus-topic
2389   :hook (gnus-group-mode . gnus-topic-mode)
2390   :config (setq gnus-topic-line-format "%i[ %A: %(%{%n%}%) ]%v\n"))
2391
2392 (use-feature gnus-agent
2393   :config
2394   (setq gnus-agent-synchronize-flags 'ask)
2395   :hook (gnus-group-mode . gnus-agent-mode))
2396
2397 (use-feature gnus-group
2398   :config
2399   (setq gnus-permanently-visible-groups "\\(:INBOX$\\|:gnu$\\)"))
2400
2401 (use-feature mm-decode
2402   :config
2403   (setq mm-discouraged-alternatives '("text/html" "text/richtext")))
2404 #+end_src
2405
2406 ** sendmail
2407
2408 #+begin_src emacs-lisp
2409 (use-feature sendmail
2410   :config
2411   (setq sendmail-program "/usr/bin/msmtp"
2412         ;; message-sendmail-extra-arguments '("-v" "-d")
2413         mail-specify-envelope-from t
2414         mail-envelope-from 'header))
2415 #+end_src
2416
2417 ** message
2418
2419 #+begin_src emacs-lisp
2420 (use-feature message
2421   :config
2422   (defconst a/message-cite-style-format "On %Y-%m-%d %l:%M %p, %N wrote:")
2423   (defconst message-cite-style-bandali
2424     '((message-cite-function  'message-cite-original)
2425       (message-citation-line-function  'message-insert-formatted-citation-line)
2426       (message-cite-reply-position 'traditional)
2427       (message-yank-prefix  "> ")
2428       (message-yank-cited-prefix  ">")
2429       (message-yank-empty-prefix  ">")
2430       (message-citation-line-format
2431        (if a/message-cite-say-hi
2432            (concat "Hi %F,\n\n" a/message-cite-style-format)
2433          a/message-cite-style-format)))
2434     "Citation style based on Mozilla Thunderbird's. Use with message-cite-style.")
2435   (setq message-cite-style 'message-cite-style-bandali
2436         message-kill-buffer-on-exit t
2437         message-send-mail-function 'message-send-mail-with-sendmail
2438         message-sendmail-envelope-from 'header
2439         message-dont-reply-to-names
2440         "\\(\\(amin@bndl\\.org\\)\\|\\(.*@\\(aminb\\|amin\\.bndl\\)\\.org\\)\\|\\(\\(bandali\\|aminb?\\|mab\\)@gnu\\.org\\)\\|\\(a\\(min\\.\\)?bandali@uwaterloo\\.ca\\)\\|\\(abandali@csclub\\.uwaterloo\\.ca\\)\\)")
2441   (require 'company-ebdb)
2442   :hook (;; (message-setup . mml-secure-message-sign-pgpmime)
2443          (message-mode . flyspell-mode)
2444          (message-mode . (lambda ()
2445                            ;; (setq fill-column 65
2446                            ;;       message-fill-column 65)
2447                            (make-local-variable 'company-idle-delay)
2448                            (setq company-idle-delay 0.2))))
2449   ;; :custom-face
2450   ;; (message-header-subject ((t (:foreground "#111" :weight semi-bold))))
2451   ;; (message-header-to      ((t (:foreground "#111" :weight normal))))
2452   ;; (message-header-cc      ((t (:foreground "#333" :weight normal))))
2453   )
2454
2455 (with-eval-after-load 'mml-sec
2456   (setq mml-secure-openpgp-encrypt-to-self t
2457         mml-secure-openpgp-sign-with-sender t))
2458 #+end_src
2459
2460 ** footnote
2461
2462 Convenient footnotes in =message-mode=.
2463
2464 #+begin_src emacs-lisp
2465 (use-feature footnote
2466   :after message
2467   ;; :config
2468   ;; (setq footnote-start-tag ""
2469   ;;       footnote-end-tag   ""
2470   ;;       footnote-style     'unicode)
2471   :bind
2472   (:map message-mode-map
2473         :prefix-map a/footnote-prefix-map
2474         :prefix "C-c f"
2475         ("a" . footnote-add-footnote)
2476         ("b" . footnote-back-to-message)
2477         ("c" . footnote-cycle-style)
2478         ("d" . footnote-delete-footnote)
2479         ("g" . footnote-goto-footnote)
2480         ("r" . footnote-renumber-footnotes)
2481         ("s" . footnote-set-style)))
2482 #+end_src
2483
2484 ** ebdb
2485
2486 #+begin_src emacs-lisp
2487 (use-package ebdb
2488   :straight (:host github :repo "girzel/ebdb")
2489   :after gnus
2490   :bind (:map gnus-group-mode-map ("e" . ebdb))
2491   :config
2492   (setq ebdb-sources (no-littering-expand-var-file-name "ebdb"))
2493   (with-eval-after-load 'swiper
2494     (add-to-list 'swiper-font-lock-exclude 'ebdb-mode t)))
2495
2496 (use-feature ebdb-com
2497   :after ebdb)
2498
2499 ;; (use-package ebdb-complete
2500 ;;   :after ebdb
2501 ;;   :config
2502 ;;   (ebdb-complete-enable))
2503
2504 (use-package company-ebdb
2505   :config
2506   (defun company-ebdb--post-complete (_) nil))
2507
2508 (use-feature ebdb-gnus
2509   :after ebdb
2510   :custom
2511   (ebdb-gnus-window-configuration
2512    '(article
2513      (vertical 1.0
2514                (summary 0.25 point)
2515                (horizontal 1.0
2516                            (article 1.0)
2517                            (ebdb-gnus 0.3))))))
2518
2519 (use-feature ebdb-mua
2520   :after ebdb
2521   ;; :custom (ebdb-mua-pop-up nil)
2522   )
2523
2524 ;; (use-package ebdb-message
2525 ;;   :after ebdb)
2526
2527
2528 ;; (use-package ebdb-vcard
2529 ;;   :after ebdb)
2530 #+end_src
2531
2532 ** message-x
2533
2534 #+begin_src emacs-lisp
2535 (use-package message-x)
2536 #+end_src
2537
2538 #+begin_src emacs-lisp :tangle no
2539 (use-package message-x
2540   :custom
2541   (message-x-completion-alist
2542    (quote
2543     (("\\([rR]esent-\\|[rR]eply-\\)?[tT]o:\\|[bB]?[cC][cC]:" . gnus-harvest-find-address)
2544      ((if
2545           (boundp
2546            (quote message-newgroups-header-regexp))
2547           message-newgroups-header-regexp message-newsgroups-header-regexp)
2548       . message-expand-group)))))
2549 #+end_src
2550
2551 ** COMMENT gnus-harvest
2552
2553 #+begin_src emacs-lisp
2554 (use-package gnus-harvest
2555   :commands gnus-harvest-install
2556   :demand t
2557   :config
2558   (if (featurep 'message-x)
2559       (gnus-harvest-install 'message-x)
2560     (gnus-harvest-install)))
2561 #+end_src
2562
2563 * Blogging
2564 :PROPERTIES:
2565 :CUSTOM_ID: blogging
2566 :END:
2567
2568 ** [[https://ox-hugo.scripter.co][ox-hugo]]
2569
2570 #+begin_src emacs-lisp
2571 (use-package ox-hugo
2572   :after ox
2573   :demand)
2574 #+end_src
2575
2576 * Post initialization
2577 :PROPERTIES:
2578 :CUSTOM_ID: post-initialization
2579 :END:
2580
2581 Display how long it took to load the init file.
2582
2583 #+begin_src emacs-lisp
2584 (message "Loading %s...done (%.3fs)" user-init-file
2585          (float-time (time-subtract (current-time)
2586                                     a/before-user-init-time)))
2587 #+end_src
2588
2589 * Footer
2590 :PROPERTIES:
2591 :CUSTOM_ID: footer
2592 :END:
2593
2594 #+begin_src emacs-lisp :comments none
2595 ;;; init.el ends here
2596 #+end_src
2597
2598 * COMMENT Local Variables                                           :ARCHIVE:
2599 # Local Variables:
2600 # eval: (add-hook 'after-save-hook #'a/async-babel-tangle 'append 'local)
2601 # eval: (when (featurep 'typo (typo-mode -1)))
2602 # End: