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[~bandali/configs] / init.el

;;; init.el --- bandali's emacs configuration -*- lexical-binding: t -*-

;; Copyright (C) 2018-2020  Amin Bandali <bandali@gnu.org>

;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; GNU Emacs configuration of Amin Bandali, computer scientist,
;; Free Software activist, and GNU maintainer & webmaster.  Packages
;; are installed through using Borg for a fully reproducible setup.

;; Over the years, I've taken inspiration from configurations of many
;; great people.  Some that I can remember off the top of my head are:
;;
;; - https://github.com/dieggsy/dotfiles
;; - https://github.com/dakra/dmacs
;; - http://pages.sachachua.com/.emacs.d/Sacha.html
;; - https://github.com/dakrone/eos
;; - http://doc.rix.si/cce/cce.html
;; - https://github.com/jwiegley/dot-emacs
;; - https://github.com/wasamasa/dotemacs
;; - https://github.com/hlissner/doom-emacs

;;; Code:

;;; Emacs initialization

(defvar b/before-user-init-time (current-time)
  "Value of `current-time' when Emacs begins loading `user-init-file'.")
(defvar b/emacs-initialized nil
  "Whether Emacs has been initialized.")

(when (not (bound-and-true-p b/emacs-initialized))
  (message "Loading Emacs...done (%.3fs)"
           (float-time (time-subtract b/before-user-init-time
                                      before-init-time))))

;; temporarily increase `gc-cons-threshhold' and `gc-cons-percentage'
;; during startup to reduce garbage collection frequency.  clearing
;; `file-name-handler-alist' seems to help reduce startup time too.
(defvar b/gc-cons-threshold gc-cons-threshold)
(defvar b/gc-cons-percentage gc-cons-percentage)
(defvar b/file-name-handler-alist file-name-handler-alist)
(setq gc-cons-threshold (* 30 1024 1024)  ; 30 MiB
      gc-cons-percentage 0.6
      file-name-handler-alist nil
      ;; sidesteps a bug when profiling with esup
      esup-child-profile-require-level 0)

;; set them back to their defaults once we're done initializing
(defun b/post-init ()
  "My post-initialize function, run after loading `user-init-file'."
  (setq b/emacs-initialized     t
        gc-cons-threshold       b/gc-cons-threshold
        gc-cons-percentage      b/gc-cons-percentage
        file-name-handler-alist b/file-name-handler-alist)
  (when (featurep 'exwm-workspace)
    (with-eval-after-load 'exwm-workspace
      (setq-default
       mode-line-format
       (append
        mode-line-format
        '((:eval
           (format
            "[%s]" (number-to-string
                    exwm-workspace-current-index))))))))

  ;; make some mode-line spaces smaller
  (csetq
   mode-line-format
   (mapcar
    (lambda (x)
      (if (and (stringp x) (or (string= x "   ") (string= x "  ")))
          " "
        x))
    mode-line-format)
   mode-line-buffer-identification
   (propertized-buffer-identification "%10b")))
(add-hook 'after-init-hook #'b/post-init)

;; increase number of lines kept in *Messages* log
(setq message-log-max 20000)

;; optionally, uncomment to supress some byte-compiler warnings
;;   (see C-h v byte-compile-warnings RET for more info)
;; (setq byte-compile-warnings
;;       '(not free-vars unresolved noruntime lexical make-local))

\f
;;; whoami

(setq user-full-name "Amin Bandali"
      user-mail-address "bandali@gnu.org")

\f
;;; Package management

;; variables of interest:
;;   package-archive-priorities
;;   package-load-list
;;   package-pinned-packages

;; (let* ((b (find-file-noselect "refinery-theme.el"))
;;        (d (with-current-buffer b (package-buffer-info))))
;;   (package-generate-description-file d "refinery-theme-pkg.el"))
(run-with-idle-timer 0.01 nil #'require 'package)
(with-eval-after-load 'package
  (when (= (length package-archives) 1)
    (csetq
     package-archives
     `(,@package-archives
       ;; ("bndl" . "https://p.bndl.org/elpa/")
       ("org" . "https://orgmode.org/elpa/"))
     package-load-list
     '(;; GNU ELPA
       (ivy "0.13.1")
       (counsel "0.13.1")
       (swiper "0.13.1")
       (debbugs "0.26")
       (delight "1.7")
       (ebdb "0.6.19")
       (orgalist "1.12")
       (rt-liberation "1.31")
       (yasnippet "0.14.0")
       ;; bndl
       (refinery-theme "0.1.1")
       ;; Org ELPA
       (org-plus-contrib "20200921"))))
  (package-initialize))

(csetq package-archive-upload-base "/ssh:caffeine:~/www/p/elpa")

\f
;;; Initial setup

;; keep ~/.emacs.d clean
(defvar b/etc-dir
  (expand-file-name
   (convert-standard-filename "etc/") user-emacs-directory)
  "The directory where packages place their configuration files.")
(defvar b/var-dir
  (expand-file-name
   (convert-standard-filename "var/") user-emacs-directory)
  "The directory where packages place their persistent data files.")
(defvar b/lisp-dir
  (expand-file-name
   (convert-standard-filename "lisp/") user-emacs-directory)
  "The directory where packages place their persistent data files.")
(defun b/etc (file)
  "Expand filename FILE relative to `b/etc-dir'."
  (expand-file-name (convert-standard-filename file) b/etc-dir))
(defun b/var (file)
  "Expand filename FILE relative to `b/var-dir'."
  (expand-file-name (convert-standard-filename file) b/var-dir))
(defun b/lisp (file)
  "Expand filename FILE relative to `b/lisp-dir'."
  (expand-file-name (convert-standard-filename file) b/lisp-dir))

(csetq
 auto-save-list-file-prefix (b/var "auto-save/sessions/")
 nsm-settings-file (b/var "nsm-settings.el"))

;; separate custom file (don't want it mixing with init.el)
(with-eval-after-load 'custom
  (setq custom-file (b/etc "custom.el"))
  (when (file-exists-p custom-file)
    (load custom-file))
  ;; while at it, treat themes as safe
  ;; (setf custom-safe-themes t)
  ;; only one custom theme at a time
  (comment
    (defadvice load-theme (before clear-previous-themes activate)
      "Clear existing theme settings instead of layering them"
      (mapc #'disable-theme custom-enabled-themes))))

;; load the secrets file if it exists, otherwise show a warning
(comment
  (with-demoted-errors
      (load (b/etc "secrets"))))

;; start up emacs server.  see
;; https://www.gnu.org/software/emacs/manual/html_node/emacs/Emacs-Server.html#Emacs-Server
(run-with-idle-timer 0.5 nil #'require 'server)
(with-eval-after-load 'server
  (declare-function server-edit "server")
  (global-set-key (kbd "C-c F D") #'server-edit)
  (declare-function server-running-p "server")
  (or (server-running-p) (server-mode)))

\f
;;; Defaults

;;;; C-level customizations

(csetq
 ;; minibuffer
 enable-recursive-minibuffers t
 resize-mini-windows t
 ;; more useful frame titles
 ;; frame-title-format '("" invocation-name " - "
 ;;                      (:eval
 ;;                       (if (buffer-file-name)
 ;;                           (abbreviate-file-name (buffer-file-name))
 ;;                         "%b")))
 ;; i don't feel like jumping out of my chair every now and again; so
 ;; don't BEEP! at me, emacs
 ring-bell-function 'ignore
 ;; better scrolling
 ;; scroll-margin 1
 ;; scroll-conservatively 10000
 scroll-step 1
 scroll-conservatively 101
 scroll-preserve-screen-position 1
 ;; focus follows mouse
 mouse-autoselect-window t)

(setq-default
 ;; always use space for indentation
 indent-tabs-mode nil
 tab-width 4
 ;; case-sensitive search (and `dabbrev-expand')
 ;; case-fold-search nil
 ;; cursor shape
 cursor-type t)

(set-fontset-font t 'arabic "Vazir")

;; unicode support
(comment
  (dolist (ft (fontset-list))
    (set-fontset-font
     ft
     'unicode
     (font-spec :name "Source Code Pro" :size 14))
    (set-fontset-font
     ft
     'unicode
     (font-spec :name "DejaVu Sans Mono")
     nil
     'append)
    ;; (set-fontset-font
    ;;  ft
    ;;  'unicode
    ;;  (font-spec
    ;;   :name "Symbola monospacified for DejaVu Sans Mono")
    ;;  nil
    ;;  'append)
    ;; (set-fontset-font
    ;;  ft
    ;;  #x2115  ; ℕ
    ;;  (font-spec :name "DejaVu Sans Mono")
    ;;  nil
    ;;  'append)
    (set-fontset-font
     ft
     (cons ?Α ?ω)
     (font-spec :name "DejaVu Sans Mono" :size 14)
     nil
     'prepend)))

;;;; Elisp-level customizations

;; startup
;; don't need to see the startup echo area message
(advice-add #'display-startup-echo-area-message :override #'ignore)
(csetq
 ;; i want *scratch* as my startup buffer
 initial-buffer-choice t
 ;; i don't need the default hint
 initial-scratch-message nil
 ;; use customizable text-mode as major mode for *scratch*
 ;; (initial-major-mode 'text-mode)
 ;; inhibit buffer list when more than 2 files are loaded
 inhibit-startup-buffer-menu t
 ;; don't need to see the startup screen or echo area message
 inhibit-startup-screen t
 inhibit-startup-echo-area-message user-login-name)

;; files
(csetq
 ;; backups (C-h v make-backup-files RET)
 backup-by-copying t
 backup-directory-alist (list (cons "." (b/var "backup/")))
 version-control t
 delete-old-versions t
 ;; auto-save
 auto-save-file-name-transforms `((".*" ,(b/var "auto-save/") t))
 ;; insert newline at the end of files
 require-final-newline t
 ;; open read-only file buffers in view-mode
 ;; (enables niceties like `q' for quit)
 view-read-only t)

;; novice
;; disable disabled commands
(csetq disabled-command-function nil)

;; lazy-person-friendly yes/no prompts
(defalias 'yes-or-no-p #'y-or-n-p)

;; autorevert: enable automatic reloading of changed buffers and files
(csetq auto-revert-verbose nil
       global-auto-revert-non-file-buffers nil)
(require 'autorevert)
(global-auto-revert-mode 1)

;; time and battery in mode-line
(csetq
 display-time-default-load-average nil
 display-time-format " %a %b %-e %-l:%M%P"
 display-time-mail-icon '(image :type xpm
                                :file "gnus/gnus-pointer.xpm"
                                :ascent center)
 display-time-use-mail-icon t)
(require 'time)
(display-time-mode)

(csetq battery-mode-line-format " %p%% %t")
(require 'battery)
(display-battery-mode)

(require 'fringe)
;; smaller fringe
;; (fringe-mode '(3 . 1))
(fringe-mode nil)

(require 'winner)
;; enable winner-mode (C-h f winner-mode RET)
(winner-mode 1)

(with-eval-after-load 'compile
  ;; don't display *compilation* buffer on success.  based on
  ;; https://stackoverflow.com/a/17788551, with changes to use `cl-letf'
  ;; instead of the now obsolete `flet'.
  (defun b/compilation-finish-function (buffer outstr)
    (unless (string-match "finished" outstr)
      (switch-to-buffer-other-window buffer))
    t)

  (setq compilation-finish-functions #'b/compilation-finish-function)

  (require 'cl-macs)

  (defadvice compilation-start
      (around inhibit-display
              (command &optional mode name-function highlight-regexp))
    (if (not (string-match "^\\(find\\|grep\\)" command))
        (cl-letf (((symbol-function 'display-buffer) #'ignore))
          (save-window-excursion ad-do-it))
      ad-do-it))
  (ad-activate 'compilation-start))

;; isearch
(csetq
 ;; allow scrolling in Isearch
 isearch-allow-scroll t
 ;; search for non-ASCII characters: i’d like non-ASCII characters such
 ;; as ‘’“”«»‹›áⓐ𝒶 to be selected when i search for their ASCII
 ;; counterpart.  shoutout to
 ;; http://endlessparentheses.com/new-in-emacs-25-1-easily-search-non-ascii-characters.html
 search-default-mode #'char-fold-to-regexp)

;; replace
;; uncomment to extend the above behaviour to query-replace
;; (csetq replace-char-fold t)

;; vc
(global-set-key (kbd "C-x v C-=") #'vc-ediff)

(with-eval-after-load 'vc-git
  (csetq vc-git-print-log-follow t
         vc-git-show-stash 0))

(csetq ediff-window-setup-function 'ediff-setup-windows-plain
       ediff-split-window-function 'split-window-horizontally)
(with-eval-after-load 'ediff
  (add-hook 'ediff-after-quit-hook-internal #'winner-undo))

;; face-remap
(csetq
 ;; gentler font resizing
 text-scale-mode-step 1.05)

(run-with-idle-timer 0.4 nil #'require 'mwheel)
(csetq mouse-wheel-scroll-amount '(1 ((shift) . 1)) ; one line at a time
       mouse-wheel-progressive-speed nil ; don't accelerate scrolling
       mouse-wheel-follow-mouse t)       ; scroll window under mouse

(run-with-idle-timer 0.4 nil #'require 'pixel-scroll)
(with-eval-after-load 'pixel-scroll
  (pixel-scroll-mode 1))

;; epg-config
(csetq
 epg-gpg-program (executable-find "gpg")
 ;; ask for GPG passphrase in minibuffer
 ;; this will fail if gpg>=2.1 is not available
 epg-pinentry-mode 'loopback)

;; (require 'pinentry)
;; workaround for systemd-based distros:
;; (setq pinentry--socket-dir server-socket-dir)
;; (pinentry-start)

;; auth-source
(csetq
 auth-sources '("~/.authinfo.gpg")
 authinfo-hidden (regexp-opt '("password" "client-secret" "token")))

\f
;;; General key bindings

(global-set-key (kbd "C-a") #'b/move-indentation-or-beginning-of-line)
(global-set-key (kbd "C-c a i") #'ielm)
(global-set-key (kbd "C-c d") #'b/duplicate-line-or-region)
(global-set-key (kbd "C-S-j") #'b/join-line-top)
(global-set-key (kbd "C-c x") #'execute-extended-command)

;; evaling and macro-expanding
(global-set-key (kbd "C-c e b") #'eval-buffer)
(global-set-key (kbd "C-c e e") #'eval-last-sexp)
(global-set-key (kbd "C-c e p") #'pp-macroexpand-last-sexp)
(global-set-key (kbd "C-c e r") #'eval-region)

;; emacs things
(global-set-key (kbd "C-c e i") #'emacs-init-time)
(global-set-key (kbd "C-c e u") #'emacs-uptime)
(global-set-key (kbd "C-c e v") #'emacs-version)

;; finding
(global-set-key (kbd "C-c f .") #'find-file)
(global-set-key (kbd "C-c f d") #'find-name-dired)
(global-set-key (kbd "C-c f l") #'find-library)

;; frames
(global-set-key (kbd "C-c F m") #'make-frame-command)
(global-set-key (kbd "C-c F d") #'delete-frame)

;; help/describe
(global-set-key (kbd "C-S-h C") #'describe-char)
(global-set-key (kbd "C-S-h F") #'describe-face)

;; (global-set-key (kbd "C-x k") #'b/kill-current-buffer)
;; (global-set-key (kbd "C-x K") #'kill-buffer)
;; (global-set-key (kbd "C-x s") #'save-buffer)
;; (global-set-key (kbd "C-x S") #'save-some-buffers)

(define-key emacs-lisp-mode-map (kbd "<C-return>") #'b/add-elisp-section)

(when (display-graphic-p)
  (global-unset-key (kbd "C-z")))

\f
;;; Essential packages

;; (require 'bandali-exwm)

(require 'bandali-org)

(require 'bandali-theme)

;; (require 'bandali-magit)

;; recently opened files
(csetq recentf-max-saved-items 2000
       recentf-save-file (b/var "recentf-save.el"))
(run-with-idle-timer 0.2 nil #'require 'recentf)
(with-eval-after-load 'recentf
  ;; (add-to-list 'recentf-keep #'file-remote-p)
  (recentf-mode))

;; needed for history for counsel
(csetq amx-save-file (b/var "amx-save.el"))
(add-to-list 'load-path (b/lisp "s"))
(add-to-list 'load-path (b/lisp "amx"))
(run-with-idle-timer 0.3 nil #'require 'amx)
(with-eval-after-load 'amx
  (amx-mode))

(require 'bandali-ivy)

(require 'bandali-eshell)

(require 'bandali-ibuffer)

;; outline
;; (with-eval-after-load 'outline
;;   (when (featurep 'which-key)
;;     (which-key-add-key-based-replacements
;;       "C-c @" "outline"
;;       "s-O"   "outline"))
;;   (define-key outline-minor-mode-map (kbd "<s-tab>")
;;     #'outline-toggle-children)
;;   (define-key outline-minor-mode-map (kbd "M-p")
;;     #'outline-previous-visible-heading)
;;   (define-key outline-minor-mode-map (kbd "M-n")
;;     #'outline-next-visible-heading)
;;   (defvar b/outline-prefix-map)
;;   (define-prefix-command 'b/outline-prefix-map)
;;   (define-key outline-minor-mode-map (kbd "s-O")
;;     'b/outline-prefix-map)
;;   (define-key b/outline-prefix-map (kbd "TAB")
;;     #'outline-toggle-children)
;;   (define-key b/outline-prefix-map (kbd "a")
;;     #'outline-hide-body)
;;   (define-key b/outline-prefix-map (kbd "H")
;;     #'outline-hide-body)
;;   (define-key b/outline-prefix-map (kbd "S")
;;     #'outline-show-all)
;;   (define-key b/outline-prefix-map (kbd "h")
;;     #'outline-hide-subtree)
;;   (define-key b/outline-prefix-map (kbd "s")
;;     #'outline-show-subtree))
;; (add-hook 'prog-mode-hook #'outline-minor-mode)

(require 'bandali-dired)

(with-eval-after-load 'help
  (temp-buffer-resize-mode)
  (csetq help-window-select t))

(with-eval-after-load 'help-mode
  ;; local key bindings
  (define-key help-mode-map (kbd "p") #'backward-button)
  (define-key help-mode-map (kbd "n") #'forward-button))

(with-eval-after-load 'tramp
  (csetq tramp-auto-save-directory (b/var "tramp/auto-save/")
         tramp-persistency-file-name (b/var "tramp/persistency.el"))
  (add-to-list 'tramp-default-proxies-alist '(nil "\\`root\\'" "/ssh:%h:"))
  (add-to-list 'tramp-default-proxies-alist '("localhost" nil nil))
  (add-to-list 'tramp-default-proxies-alist
               (list (regexp-quote (system-name)) nil nil)))

(with-eval-after-load 'doc-view
  (define-key doc-view-mode-map (kbd "M-RET") #'image-previous-line))

(csetq shr-max-width 80)

;; Email (with Gnus, message, and EBDB)
(require 'bandali-gnus)
(with-eval-after-load 'sendmail
  (csetq sendmail-program (executable-find "msmtp")
         ;; message-sendmail-extra-arguments '("-v" "-d")
         mail-specify-envelope-from t
         mail-envelope-from 'header))
(require 'bandali-message)
(require 'bandali-ebdb)

;; IRC (with ERC)
(require 'bandali-erc)

(add-to-list 'load-path (b/lisp "scpaste"))
(with-eval-after-load 'scpaste
  (csetq scpaste-http-destination "https://p.bndl.org"
         scpaste-scp-destination "p:~"))
(autoload 'scpaste "scpaste" nil t)
(autoload 'scpaste-region "scpaste" nil t)
(global-set-key (kbd "C-c a p p") #'scpaste)
(global-set-key (kbd "C-c a p r") #'scpaste-region)

\f
;;; Editing

;; display Lisp objects at point in the echo area
(when (version< "25" emacs-version)
  (with-eval-after-load 'eldoc
    (csetq eldoc-minor-mode-string " eldoc")
    (global-eldoc-mode)))

;; highlight matching parens
(require 'paren)
(show-paren-mode)

;; (require 'elec-pair)
;; (electric-pair-mode)

(csetq
 ;; Save what I copy into clipboard from other applications into Emacs'
 ;; kill-ring, which would allow me to still be able to easily access
 ;; it in case I kill (cut or copy) something else inside Emacs before
 ;; yanking (pasting) what I'd originally intended to.
 save-interprogram-paste-before-kill t)
(with-eval-after-load 'simple
  (column-number-mode 1))

;; save minibuffer history
(require 'savehist)
(csetq savehist-file (b/var "savehist.el"))
(savehist-mode)
(add-to-list 'savehist-additional-variables 'kill-ring)

;; automatically save place in files
(when (version< "25" emacs-version)
  (csetq save-place-file (b/var "save-place.el"))
  (save-place-mode))

(defun indicate-buffer-boundaries-left ()
    (csetq indicate-buffer-boundaries 'left))
(with-eval-after-load 'prog-mode
  (global-prettify-symbols-mode))
(add-hook 'prog-mode-hook #'indicate-buffer-boundaries-left)

(define-key text-mode-map (kbd "C-<return>") #'b/insert-asterism)
(add-hook 'text-mode-hook #'indicate-buffer-boundaries-left)
(add-hook 'text-mode-hook #'flyspell-mode)

(add-to-list 'auto-mode-alist '("\\.*rc$" . conf-mode))

(add-to-list 'auto-mode-alist '("\\.bashrc$" . sh-mode))

(with-eval-after-load 'flyspell
  (csetq flyspell-mode-line-string " fly"))

;; flycheck
;; (run-with-idle-timer 0.6 nil #'require 'flycheck)
;; (with-eval-after-load 'flycheck
;;   (csetq
;;    ;; Use the load-path from running Emacs when checking elisp files
;;    flycheck-emacs-lisp-load-path 'inherit
;;    ;; Only flycheck when I actually save the buffer
;;    flycheck-check-syntax-automatically '(mode-enabled save)
;;    flycheck-mode-line-prefix "flyc"))
;; (define-key flycheck-mode-map (kbd "M-P") #'flycheck-previous-error)
;; (define-key flycheck-mode-map (kbd "M-N") #'flycheck-next-error)
;; (add-hook 'prog-mode-hook #'flycheck-mode)

;; ispell
;; http://endlessparentheses.com/ispell-and-apostrophes.html
;; (run-with-idle-timer 0.6 nil #'require 'ispell)
;; (with-eval-after-load 'ispell
;;   ;; ’ can be part of a word
;;   (csetq ispell-local-dictionary-alist
;;          `((nil "[[:alpha:]]" "[^[:alpha:]]"
;;                 "['\x2019]" nil ("-B") nil utf-8))
;;          ispell-program-name (executable-find "hunspell"))
;;   ;; don't send ’ to the subprocess
;;   (defun endless/replace-apostrophe (args)
;;     (cons (replace-regexp-in-string
;;            "’" "'" (car args))
;;           (cdr args)))
;;   (advice-add #'ispell-send-string :filter-args
;;               #'endless/replace-apostrophe)
;;   ;; convert ' back to ’ from the subprocess
;;   (defun endless/replace-quote (args)
;;     (if (not (derived-mode-p 'org-mode))
;;         args
;;       (cons (replace-regexp-in-string
;;              "'" "’" (car args))
;;             (cdr args))))
;;   (advice-add #'ispell-parse-output :filter-args
;;               #'endless/replace-quote))

;; abbrev
(csetq abbrev-file-name (b/etc "abbrev.el"))
(add-hook 'text-mode-hook #'abbrev-mode)

\f
;;; Programming modes

(with-eval-after-load 'lisp-mode
  (defun indent-spaces-mode ()
    (setq indent-tabs-mode nil))
  (add-hook 'lisp-interaction-mode-hook #'indent-spaces-mode))

;; alloy
(add-to-list 'load-path (b/lisp "alloy-mode"))
(autoload 'alloy-mode "alloy-mode" nil t)
(with-eval-after-load 'alloy-mode
  (csetq alloy-basic-offset 2)
  ;; (defun b/alloy-simple-indent (start end)
  ;;   (interactive "r")
  ;;   ;; (if (region-active-p)
  ;;   ;;     (indent-rigidly start end alloy-basic-offset)
  ;;   ;;   (if (bolp)
  ;;   ;;       (indent-rigidly (line-beginning-position)
  ;;   ;;                       (line-end-position)
  ;;   ;;                       alloy-basic-offset)))
  ;;   (indent-to (+ (current-column) alloy-basic-offset)))
  ;; local key bindings
  (define-key alloy-mode-map (kbd "RET") #'electric-newline-and-maybe-indent)
  ;; (define-key alloy-mode-map (kbd "TAB") #'b/alloy-simple-indent)
  (define-key alloy-mode-map (kbd "TAB") #'indent-for-tab-command))
(add-to-list 'auto-mode-alist '("\\.\\(als\\|dsh\\)\\'" . alloy-mode))
(add-hook 'alloy-mode-hook (lambda nil (setq-local indent-tabs-mode nil)))

;; lean
;; (eval-when-compile (defvar lean-mode-map))
;; (run-with-idle-timer 0.4 nil #'require 'lean-mode)
;; (with-eval-after-load 'lean-mode
;;   (require 'lean-input)
;;   (csetq default-input-method "Lean"
;;          lean-input-tweak-all '(lean-input-compose
;;                                 (lean-input-prepend "/")
;;                                 (lean-input-nonempty))
;;          lean-input-user-translations '(("/" "/")))
;;   (lean-input-setup)
;;   ;; local key bindings
;;   (define-key lean-mode-map (kbd "S-SPC") #'company-complete))

(with-eval-after-load 'sgml-mode
  (csetq sgml-basic-offset 0))

(with-eval-after-load 'css-mode
  (csetq css-indent-offset 2))

;; po-mode
;; (add-hook 'po-mode-hook (lambda nil (run-with-timer 0.1 nil 'View-exit)))

;; auctex
;; (csetq font-latex-fontify-sectioning 'color)

(with-eval-after-load 'tex-mode
  (cl-delete-if
   (lambda (p) (string-match "^---?" (car p)))
   tex--prettify-symbols-alist))
(add-hook 'tex-mode-hook #'auto-fill-mode)
(add-hook 'tex-mode-hook #'flyspell-mode)

\f
;;; Emacs enhancements & auxiliary packages

(with-eval-after-load 'man
  (csetq Man-width 80))

(defun b/*scratch* ()
  "Switch to `*scratch*' buffer, creating it if it does not exist."
  (interactive)
  (switch-to-buffer
   (or (get-buffer "*scratch*")
       (with-current-buffer (get-buffer-create "*scratch*")
         (set-buffer-major-mode (current-buffer))
         (current-buffer)))))
(global-set-key (kbd "C-c s") #'b/*scratch*)

;; ,----
;; | make pretty boxed quotes like this
;; `----
(add-to-list 'load-path (b/lisp "boxquote"))
(run-with-idle-timer 0.6 nil #'require 'boxquote)
(with-eval-after-load 'boxquote
  (defvar b/boxquote-prefix-map)
  (define-prefix-command 'b/boxquote-prefix-map)
  (global-set-key (kbd "C-c q") 'b/boxquote-prefix-map)
  (define-key b/boxquote-prefix-map (kbd "b")   #'boxquote-buffer)
  (define-key b/boxquote-prefix-map (kbd "B")   #'boxquote-insert-buffer)
  (define-key b/boxquote-prefix-map (kbd "d")   #'boxquote-defun)
  (define-key b/boxquote-prefix-map (kbd "F")   #'boxquote-insert-file)
  (define-key b/boxquote-prefix-map (kbd "hf")  #'boxquote-describe-function)
  (define-key b/boxquote-prefix-map (kbd "hk")  #'boxquote-describe-key)
  (define-key b/boxquote-prefix-map (kbd "hv")  #'boxquote-describe-variable)
  (define-key b/boxquote-prefix-map (kbd "hw")  #'boxquote-where-is)
  (define-key b/boxquote-prefix-map (kbd "k")   #'boxquote-kill)
  (define-key b/boxquote-prefix-map (kbd "p")   #'boxquote-paragraph)
  (define-key b/boxquote-prefix-map (kbd "q")   #'boxquote-boxquote)
  (define-key b/boxquote-prefix-map (kbd "r")   #'boxquote-region)
  (define-key b/boxquote-prefix-map (kbd "s")   #'boxquote-shell-command)
  (define-key b/boxquote-prefix-map (kbd "t")   #'boxquote-text)
  (define-key b/boxquote-prefix-map (kbd "T")   #'boxquote-title)
  (define-key b/boxquote-prefix-map (kbd "u")   #'boxquote-unbox)
  (define-key b/boxquote-prefix-map (kbd "U")   #'boxquote-unbox-region)
  (define-key b/boxquote-prefix-map (kbd "y")   #'boxquote-yank)
  (define-key b/boxquote-prefix-map (kbd "M-q") #'boxquote-fill-paragraph)
  (define-key b/boxquote-prefix-map (kbd "M-w") #'boxquote-kill-ring-save))

(add-to-list 'load-path (b/lisp "hl-todo"))
(run-with-idle-timer 0.5 nil #'require 'hl-todo)
(with-eval-after-load 'hl-todo
  ;; highlight TODOs in buffers
  (global-hl-todo-mode))

(add-to-list 'load-path (b/lisp "page-break-lines"))
(run-with-idle-timer 0.5 nil #'require 'page-break-lines)
(with-eval-after-load 'page-break-lines
  (csetq page-break-lines-max-width fill-column)
  (global-page-break-lines-mode))

;; expand-region
(global-set-key (kbd "C-=") #'er/expand-region)

(run-with-idle-timer 0.6 nil #'require 'yasnippet)
(with-eval-after-load 'yasnippet
  (declare-function yas-reload-all
                    "yasnippet" (&optional no-jit interactive))
  (declare-function yas-maybe-expand-abbrev-key-filter
                    "yasnippet" (cmd))

  (defconst yas-verbosity-cur yas-verbosity)
  (setq yas-verbosity 2)
  (csetq yas-snippet-dirs `(,(b/etc "yasnippet/snippets")))
  (add-to-list 'yas-snippet-dirs "~/src/git/guix/etc/snippets" t)
  (yas-reload-all)
  (setq yas-verbosity yas-verbosity-cur)

  (defun b/yas-maybe-expand-abbrev-key-filter (cmd)
    (when (and (yas-maybe-expand-abbrev-key-filter cmd)
               (not (bound-and-true-p git-commit-mode)))
      cmd))
  (defconst b/yas-maybe-expand
    '(menu-item "" yas-expand
                :filter b/yas-maybe-expand-abbrev-key-filter))
  (define-key yas-minor-mode-map (kbd "SPC") b/yas-maybe-expand)

  (yas-global-mode))

;; debbugs
(global-set-key (kbd "C-c D d") #'debbugs-gnu)
(global-set-key (kbd "C-c D b") #'debbugs-gnu-bugs)
(global-set-key (kbd "C-c D e")         ; bug-gnu-emacs
                (lambda ()
                  (interactive)         
                  (setq debbugs-gnu-current-suppress t)
                  (debbugs-gnu debbugs-gnu-default-severities
                               '("emacs"))))
(global-set-key (kbd "C-c D g")         ; bug-gnuzilla
                (lambda ()
                  (interactive)
                  (setq debbugs-gnu-current-suppress t)
                  (debbugs-gnu debbugs-gnu-default-severities
                               '("gnuzilla"))))
(global-set-key (kbd "C-c D G b")       ; bug-guix
                (lambda ()
                  (interactive)
                  (setq debbugs-gnu-current-suppress t)
                  (debbugs-gnu debbugs-gnu-default-severities
                               '("guix"))))
(global-set-key (kbd "C-c D G p")       ; guix-patches
                (lambda ()
                  (interactive)
                  (setq debbugs-gnu-current-suppress t)
                  (debbugs-gnu debbugs-gnu-default-severities
                               '("guix-patches"))))

;; url and url-cache
(csetq
 url-configuration-directory (b/var "url/configuration/")
 url-cache-directory (b/var "url/cache/"))

;; eww
(csetq eww-download-directory (file-name-as-directory
                               (getenv "XDG_DOWNLOAD_DIR")))
(global-set-key (kbd "C-c a e w") #'eww)

;; ;; org-ref
;; (csetq
;;  reftex-default-bibliography '("~/usr/org/references.bib")
;;  org-ref-default-bibliography '("~/usr/org/references.bib")
;;  org-ref-bibliography-notes "~/usr/org/notes.org"
;;  org-ref-pdf-directory "~/usr/org/bibtex-pdfs/")

;; fill-column-indicator ?

;; window
(csetq split-width-threshold 150)
(global-set-key (kbd "C-c w s l")
                (lambda ()
                  (interactive)
                  (split-window-right)
                  (other-window 1)))
(global-set-key (kbd "C-c w s j")
                (lambda ()
                  (interactive)
                  (split-window-below)
                  (other-window 1)))
(global-set-key (kbd "C-c w q") #'quit-window)

(run-with-idle-timer 0.6 nil #'require 'windmove)
(global-set-key (kbd "C-c w h") #'windmove-left)
(global-set-key (kbd "C-c w j") #'windmove-down)
(global-set-key (kbd "C-c w k") #'windmove-up)
(global-set-key (kbd "C-c w l") #'windmove-right)
(global-set-key (kbd "C-c w H") #'windmove-swap-states-left)
(global-set-key (kbd "C-c w J") #'windmove-swap-states-down)
(global-set-key (kbd "C-c w K") #'windmove-swap-states-up)
(global-set-key (kbd "C-c w L") #'windmove-swap-states-right)

;; pass
;; (global-set-key (kbd "C-c a p") #'pass)
;; (add-hook 'pass-mode-hook #'View-exit)

;; reftex
;; uncomment to disable reftex-cite's default choice of previous word
;; (with-eval-after-load 'reftex
;;   (require 'reftex-cite)
;;   (defun reftex-get-bibkey-default ()
;;     "If the cursor is in a citation macro, return the word before the macro."
;;     (let* ((macro (reftex-what-macro 1)))
;;       (save-excursion
;;         (when (and macro (string-match "cite" (car macro)))
;;           (goto-char (cdr macro)))
;;         (reftex-this-word)))))
(add-hook 'latex-mode-hook #'reftex-mode)

;; dmenu
;; (csetq
;;  dmenu-prompt-string "run: "
;;  dmenu-save-file (b/var "dmenu-items"))

;; eosd ?

;; delight
(run-with-idle-timer 0.5 nil #'require 'delight)
(with-eval-after-load 'delight
  (delight 'auto-fill-function " f" "simple")
  (delight 'abbrev-mode "" "abbrev")
  (delight 'page-break-lines-mode "" "page-break-lines")
  (delight 'ivy-mode "" "ivy")
  (delight 'counsel-mode "" "counsel")
  (delight 'mml-mode " mml" "mml")
  (delight 'yas-minor-mode "" "yasnippet"))

\f
;;; Post initialization

(message "Loading %s...done (%.3fs)" user-init-file
         (float-time (time-subtract (current-time)
                                    b/before-user-init-time)))

;;; init.el ends here