+ (setq undo-tree-mode-lighter ""
+ undo-tree-auto-save-history t))
+#+end_src
+
+* Editing
+
+** Company
+
+#+begin_src emacs-lisp
+(use-package company
+ :defer 5
+ :bind
+ (:map company-active-map
+ ([tab] . company-complete-common-or-cycle))
+ :custom
+ (company-idle-delay 0.3)
+ (company-minimum-prefix-length 1)
+ (company-selection-wrap-around t)
+ (company-dabbrev-char-regexp "\\sw\\|\\s_\\|[-_]")
+ (company-dabbrev-downcase nil)
+ (company-dabbrev-ignore-case nil)
+ :config
+ (global-company-mode t))
+#+end_src
+
+* Syntax and spell checking
+#+begin_src emacs-lisp
+(use-package flycheck
+ :hook (prog-mode . flycheck-mode)
+ :config
+ ;; Use the load-path from running Emacs when checking elisp files
+ (setq flycheck-emacs-lisp-load-path 'inherit)
+
+ ;; Only flycheck when I actually save the buffer
+ (setq flycheck-check-syntax-automatically '(mode-enabled save)))
+#+end_src
+* Programming modes
+
+** [[http://alloytools.org][Alloy]] (with [[https://github.com/dwwmmn/alloy-mode][alloy-mode]])
+
+#+begin_src emacs-lisp
+(use-package alloy-mode
+ :config (setq alloy-basic-offset 2))
+#+end_src
+
+** [[https://coq.inria.fr][Coq]] (with [[https://github.com/ProofGeneral/PG][Proof General]])
+
+#+begin_src emacs-lisp
+(use-package proof-site ; Proof General
+ :load-path "lib/proof-site/generic/")
+#+end_src
+
+** [[https://leanprover.github.io][Lean]] (with [[https://github.com/leanprover/lean-mode][lean-mode]])
+
+#+begin_src emacs-lisp
+(eval-when-compile (defvar lean-mode-map))
+(use-package lean-mode
+ :bind (:map lean-mode-map
+ ("S-SPC" . company-complete)))
+#+end_src
+
+** Haskell
+
+*** [[https://github.com/haskell/haskell-mode][haskell-mode]]
+
+#+begin_src emacs-lisp
+(use-package haskell-mode
+ :config
+ (setq haskell-indentation-layout-offset 4
+ haskell-indentation-left-offset 4
+ flycheck-checker 'haskell-hlint
+ flycheck-disabled-checkers '(haskell-stack-ghc haskell-ghc)))
+#+end_src
+
+*** [[https://github.com/jyp/dante][dante]]
+
+#+begin_src emacs-lisp
+(use-package dante
+ :after haskell-mode
+ :commands dante-mode
+ :hook (haskell-mode . dante-mode))
+#+end_src
+
+*** [[https://github.com/mpickering/hlint-refactor-mode][hlint-refactor]]
+
+Emacs bindings for [[https://github.com/ndmitchell/hlint][hlint]]'s refactor option. This requires the refact
+executable from [[https://github.com/mpickering/apply-refact][apply-refact]].
+
+#+begin_src emacs-lisp
+(use-package hlint-refactor
+ :bind (:map hlint-refactor-mode-map
+ ("C-c l b" . hlint-refactor-refactor-buffer)
+ ("C-c l r" . hlint-refactor-refactor-at-point))
+ :hook (haskell-mode . hlint-refactor-mode))
+#+end_src
+
+*** [[https://github.com/flycheck/flycheck-haskell][flycheck-haskell]]
+
+#+begin_src emacs-lisp
+(use-package flycheck-haskell)
+#+end_src
+
+*** [[https://github.com/ndmitchell/hlint/blob/20e116a043f2073c57b17b24ae6364b5e433ba7e/data/hs-lint.el][hs-lint.el]]
+:PROPERTIES:
+:header-args+: :tangle lisp/hs-lint.el :mkdirp yes
+:END:
+
+Currently using =flycheck-haskell= with the =haskell-hlint= checker
+instead.
+
+#+begin_src emacs-lisp :tangle no
+;;; hs-lint.el --- minor mode for HLint code checking
+
+;; Copyright 2009 (C) Alex Ott
+;;
+;; Author: Alex Ott <alexott@gmail.com>
+;; Keywords: haskell, lint, HLint
+;; Requirements:
+;; Status: distributed under terms of GPL2 or above
+
+;; Typical message from HLint looks like:
+;;
+;; /Users/ott/projects/lang-exp/haskell/test.hs:52:1: Eta reduce
+;; Found:
+;; count1 p l = length (filter p l)
+;; Why not:
+;; count1 p = length . filter p
+
+
+(require 'compile)
+
+(defgroup hs-lint nil
+ "Run HLint as inferior of Emacs, parse error messages."
+ :group 'tools
+ :group 'haskell)
+
+(defcustom hs-lint-command "hlint"
+ "The default hs-lint command for \\[hlint]."
+ :type 'string
+ :group 'hs-lint)
+
+(defcustom hs-lint-save-files t
+ "Save modified files when run HLint or no (ask user)"
+ :type 'boolean
+ :group 'hs-lint)
+
+(defcustom hs-lint-replace-with-suggestions nil
+ "Replace user's code with suggested replacements"
+ :type 'boolean
+ :group 'hs-lint)
+
+(defcustom hs-lint-replace-without-ask nil
+ "Replace user's code with suggested replacements automatically"
+ :type 'boolean
+ :group 'hs-lint)
+
+(defun hs-lint-process-setup ()
+ "Setup compilation variables and buffer for `hlint'."
+ (run-hooks 'hs-lint-setup-hook))
+
+;; regex for replace suggestions
+;;
+;; ^\(.*?\):\([0-9]+\):\([0-9]+\): .*
+;; Found:
+;; \s +\(.*\)
+;; Why not:
+;; \s +\(.*\)
+
+(defvar hs-lint-regex
+ "^\\(.*?\\):\\([0-9]+\\):\\([0-9]+\\): .*[\n\C-m]Found:[\n\C-m]\\s +\\(.*\\)[\n\C-m]Why not:[\n\C-m]\\s +\\(.*\\)[\n\C-m]"
+ "Regex for HLint messages")
+
+(defun make-short-string (str maxlen)
+ (if (< (length str) maxlen)
+ str
+ (concat (substring str 0 (- maxlen 3)) "...")))
+
+(defun hs-lint-replace-suggestions ()
+ "Perform actual replacement of suggestions"
+ (goto-char (point-min))
+ (while (re-search-forward hs-lint-regex nil t)
+ (let* ((fname (match-string 1))
+ (fline (string-to-number (match-string 2)))
+ (old-code (match-string 4))
+ (new-code (match-string 5))
+ (msg (concat "Replace '" (make-short-string old-code 30)
+ "' with '" (make-short-string new-code 30) "'"))
+ (bline 0)
+ (eline 0)
+ (spos 0)
+ (new-old-code ""))
+ (save-excursion
+ (switch-to-buffer (get-file-buffer fname))
+ (goto-char (point-min))
+ (forward-line (1- fline))
+ (beginning-of-line)
+ (setf bline (point))
+ (when (or hs-lint-replace-without-ask
+ (yes-or-no-p msg))
+ (end-of-line)
+ (setf eline (point))
+ (beginning-of-line)
+ (setf old-code (regexp-quote old-code))
+ (while (string-match "\\\\ " old-code spos)
+ (setf new-old-code (concat new-old-code
+ (substring old-code spos (match-beginning 0))
+ "\\ *"))
+ (setf spos (match-end 0)))
+ (setf new-old-code (concat new-old-code (substring old-code spos)))
+ (remove-text-properties bline eline '(composition nil))
+ (when (re-search-forward new-old-code eline t)
+ (replace-match new-code nil t)))))))
+
+(defun hs-lint-finish-hook (buf msg)
+ "Function, that is executed at the end of HLint execution"
+ (if hs-lint-replace-with-suggestions
+ (hs-lint-replace-suggestions)
+ (next-error 1 t)))
+
+(define-compilation-mode hs-lint-mode "HLint"
+ "Mode for check Haskell source code."
+ (set (make-local-variable 'compilation-process-setup-function)
+ 'hs-lint-process-setup)
+ (set (make-local-variable 'compilation-disable-input) t)
+ (set (make-local-variable 'compilation-scroll-output) nil)
+ (set (make-local-variable 'compilation-finish-functions)
+ (list 'hs-lint-finish-hook))
+ )
+
+(defun hs-lint ()
+ "Run HLint for current buffer with haskell source"
+ (interactive)
+ (save-some-buffers hs-lint-save-files)
+ (compilation-start (concat hs-lint-command " \"" buffer-file-name "\"")
+ 'hs-lint-mode))
+
+(provide 'hs-lint)
+;;; hs-lint.el ends here
+#+end_src
+
+#+begin_src emacs-lisp :tangle no
+(use-package hs-lint
+ :load-path "lisp/"
+ :bind (:map haskell-mode-map
+ ("C-c l l" . hs-lint)))
+#+end_src
+
+** Web dev
+
+*** SGML and HTML
+
+#+begin_src emacs-lisp
+(use-package sgml-mode
+ :config
+ (setq sgml-basic-offset 2))
+#+end_src
+
+*** CSS and SCSS
+
+#+begin_src emacs-lisp
+(use-package css-mode
+ :config
+ (setq css-indent-offset 2))
+#+end_src
+
+*** Web mode
+
+#+begin_src emacs-lisp
+(use-package web-mode
+ :mode "\\.html\\'"
+ :config
+ (setq-every! 2
+ web-mode-code-indent-offset
+ web-mode-css-indent-offset
+ web-mode-markup-indent-offset))
+#+end_src
+
+*** Emmet mode
+
+#+begin_src emacs-lisp
+(use-package emmet-mode
+ :bind* (("C-)" . emmet-next-edit-point)
+ ("C-(" . emmet-prev-edit-point))
+ :config
+ (unbind-key "C-j" emmet-mode-keymap)
+ (setq emmet-move-cursor-between-quotes t)
+ :hook (web-mode css-mode html-mode sgml-mode))
+#+end_src
+
+* Emacs Enhancements
+
+** [[https://github.com/justbur/emacs-which-key][which-key]]
+
+#+begin_quote
+Emacs package that displays available keybindings in popup
+#+end_quote
+
+#+begin_src emacs-lisp
+(use-package which-key
+ :defer 1
+ :config (which-key-mode))
+#+end_src
+
+** [[https://github.com/seagle0128/doom-modeline][doom-modeline]]
+
+#+begin_src emacs-lisp
+(use-package doom-modeline
+ :demand t
+ :config (setq doom-modeline-height 32)
+ :hook (after-init . doom-modeline-init))
+#+end_src
+
+** [[https://github.com/11111000000/tao-theme-emacs][tao-theme]]
+
+#+begin_src emacs-lisp :tangle no
+(use-package tao-theme
+ :demand t
+ :config (load-theme 'tao-yang t))
+#+end_src
+
+** [[https://github.com/maio/eink-emacs][eink-theme]]
+
+#+begin_src emacs-lisp
+(load-theme 'eink t)
+#+end_src
+
+** [[https://github.com/bbatsov/crux][crux]]
+
+#+begin_src emacs-lisp
+(use-package crux
+ :bind (("C-c d" . crux-duplicate-current-line-or-region)
+ ("C-c M-d" . crux-duplicate-and-comment-current-line-or-region)
+ ("C-c b K" . crux-kill-other-buffers)
+ ("C-c f c" . crux-copy-file-preserve-attributes)
+ ("C-c f D" . crux-delete-file-and-buffer)
+ ("C-c f R" . crux-rename-file-and-buffer)
+ ("C-S-j" . crux-top-join-line)
+ ("C-c j" . crux-top-join-line)))
+#+end_src
+
+** [[https://github.com/alezost/mwim.el][mwim]]
+
+#+begin_src emacs-lisp
+(use-package mwim
+ :bind (("C-a" . mwim-beginning-of-code-or-line)
+ ("C-e" . mwim-end-of-code-or-line)
+ ("<home>" . mwim-beginning-of-line-or-code)
+ ("<end>" . mwim-end-of-line-or-code)))
+#+end_src
+
+** projectile
+
+#+begin_src emacs-lisp
+(use-package projectile
+ :defer 5
+ :bind-keymap ("C-c p" . projectile-command-map)
+ :config
+ (projectile-mode)
+
+ (defun my-projectile-invalidate-cache (&rest _args)
+ ;; ignore the args to `magit-checkout'
+ (projectile-invalidate-cache nil))
+
+ (eval-after-load 'magit-branch
+ '(progn
+ (advice-add 'magit-checkout
+ :after #'my-projectile-invalidate-cache)
+ (advice-add 'magit-branch-and-checkout
+ :after #'my-projectile-invalidate-cache))))
+#+end_src
+
+** [[https://github.com/Wilfred/helpful][helpful]]
+
+#+begin_src emacs-lisp
+(use-package helpful
+ :bind
+ (("C-h f" . helpful-callable)
+ ("C-h v" . helpful-variable)
+ ("C-h k" . helpful-key)
+ ("C-c C-d" . helpful-at-point)
+ ("C-h F" . helpful-function)
+ ("C-h C" . helpful-command)))
+#+end_src
+
+** [[https://github.com/kyagi/shell-pop-el][shell-pop]]
+
+#+begin_src emacs-lisp
+(use-package shell-pop
+ :custom
+ (shell-pop-universal-key "C-c e")
+ (shell-pop-shell-type '("eshell" "*eshell*" (lambda nil (eshell)))))
+#+end_src
+
+** [[https://github.com/EricCrosson/unkillable-scratch][unkillable-scratch]]
+
+Make =*scratch*= and =*Messages*= unkillable.
+
+#+begin_src emacs-lisp
+(use-package unkillable-scratch
+ :config
+ (unkillable-scratch 1)
+ :custom
+ (unkillable-buffers '("^\\*scratch\\*$" "^\\*Messages\\*$")))
+#+end_src
+
+** [[https://github.com/davep/boxquote.el][boxquote.el]]
+
+#+begin_example
+,----
+| make pretty boxed quotes like this
+`----
+#+end_example
+
+#+begin_src emacs-lisp
+(use-package boxquote
+ :bind
+ (:prefix-map amin--boxquote-prefix-map
+ :prefix "C-c q"
+ ("b" . boxquote-buffer)
+ ("B" . boxquote-insert-buffer)
+ ("d" . boxquote-defun)
+ ("F" . boxquote-insert-file)
+ ("hf" . boxquote-describe-function)
+ ("hk" . boxquote-describe-key)
+ ("hv" . boxquote-describe-variable)
+ ("hw" . boxquote-where-is)
+ ("k" . boxquote-kill)
+ ("p" . boxquote-paragraph)
+ ("q" . boxquote-boxquote)
+ ("r" . boxquote-region)
+ ("s" . boxquote-shell-command)
+ ("t" . boxquote-text)
+ ("T" . boxquote-title)
+ ("u" . boxquote-unbox)
+ ("U" . boxquote-unbox-region)
+ ("y" . boxquote-yank)
+ ("M-q" . boxquote-fill-paragraph)
+ ("M-w" . boxquote-kill-ring-save)))
+#+end_src
+
+Also see [[https://www.emacswiki.org/emacs/rebox2][rebox2]].
+
+** [[https://github.com/DarthFennec/highlight-indent-guides][highlight-indent-guides]]
+
+#+begin_src emacs-lisp
+(use-package highlight-indent-guides
+ :demand t
+ :hook ((prog-mode . highlight-indent-guides-mode)
+ (org-mode . highlight-indent-guides-mode))
+ :config
+ (setq highlight-indent-guides-character ?\|)
+ (setq highlight-indent-guides-auto-enabled nil)
+ (setq highlight-indent-guides-method 'character)
+ (setq highlight-indent-guides-responsive 'top)
+ (set-face-foreground 'highlight-indent-guides-character-face "gainsboro")
+ (set-face-foreground 'highlight-indent-guides-top-character-face "grey40")) ; grey13 is nice too
+#+end_src
+
+* Email
+** [[https://notmuchmail.org][notmuch]]
+
+See [[notmuch:id:87muuqsvci.fsf@fencepost.gnu.org][bug follow-up]].
+
+#+begin_src emacs-lisp
+(defvar amin-maildir "~/mail")
+
+(use-package sendmail
+ ;; :ensure nil
+ :config
+ (setq sendmail-program "/usr/bin/msmtp"
+ ; message-sendmail-extra-arguments '("-v" "-d")
+ mail-specify-envelope-from t
+ mail-envelope-from 'header))
+
+(use-package message
+ ;; :ensure nil
+ :config
+ (setq message-kill-buffer-on-exit t
+ message-send-mail-function 'message-send-mail-with-sendmail
+ message-sendmail-envelope-from 'header
+ message-directory "drafts"
+ message-user-fqdn "aminb.org")
+ (add-hook 'message-mode-hook
+ (lambda () (setq fill-column 65
+ message-fill-column 65)))
+ (add-hook 'message-mode-hook
+ #'flyspell-mode)
+ ;; (add-hook 'notmuch-message-mode-hook #'+doom-modeline|set-special-modeline)
+ ;; TODO: is there a way to only run this when replying and not composing?
+ ;; (add-hook 'notmuch-message-mode-hook
+ ;; (lambda () (progn
+ ;; (newline)
+ ;; (newline)
+ ;; (forward-line -1)
+ ;; (forward-line -1))))
+ ;; (add-hook 'message-setup-hook
+ ;; #'mml-secure-message-sign-pgpmime)
+ )
+
+(after! mml-sec
+ (setq mml-secure-openpgp-encrypt-to-self t
+ mml-secure-openpgp-sign-with-sender t))
+
+(defun amin/notmuch ()
+ "Delete other windows, then launch `notmuch'."
+ (interactive)
+ (delete-other-windows)
+ (notmuch))
+
+(use-package notmuch
+ :commands notmuch
+ :bind ("C-c m" . amin/notmuch)
+ :custom (notmuch-always-prompt-for-sender t)
+ :config
+ (setq notmuch-hello-sections
+ '(notmuch-hello-insert-header
+ notmuch-hello-insert-saved-searches
+ ;; notmuch-hello-insert-search
+ notmuch-hello-insert-alltags)
+ notmuch-search-oldest-first nil
+ notmuch-show-all-tags-list t
+ notmuch-message-headers ; see bug follow-up above
+ '("Subject" "To" "Cc" "Date" "List-Id" "X-RT-Originator")
+ notmuch-hello-thousands-separator ","
+ notmuch-fcc-dirs
+ '(("amin@aminb.org" . "amin/Sent")
+ ("amin@gnu.org" . "gnu/Sent")
+ ("abandali@uwaterloo.ca" . "\"uwaterloo/Sent Items\"")
+ ("mab@gnu.org" . "gnu/Sent")
+ ("aminb@gnu.org" . "gnu/Sent")
+ (".*" . "sent"))
+ notmuch-search-result-format
+ '(("date" . "%12s ")
+ ("count" . "%-7s ")
+ ("authors" . "%-40s ")
+ ("subject" . "%s ")
+ ("tags" . "(%s)"))
+ notmuch-saved-searches
+ '((:name "inbox" :query "tag:inbox" :key "i")
+ (:name "unread" :query "tag:unread" :key "u")
+ (:name "latest" :query "tag:latest" :key "l")
+ (:name "encrypted" :query "tag:encrypted" :key "e")
+ (:name "flagged" :query "tag:flagged" :key "f")
+ (:name "sent" :query "tag:sent" :key "s")
+ (:name "drafts" :query "tag:draft" :key "d")
+ (:name "all mail" :query "*" :key "a")))
+ ;; (add-hook 'visual-fill-column-mode-hook
+ ;; (lambda ()
+ ;; (when (string= major-mode 'notmuch-message-mode)
+ ;; (setq visual-fill-column-width 70))))
+ ;; (set! :evil-state 'notmuch-message-mode 'insert)
+ ;; (advice-add #'notmuch-bury-or-kill-this-buffer
+ ;; :override #'kill-this-buffer)
+ :bind
+ (:map notmuch-hello-mode-map
+ ("u" . (lambda ()
+ "Search for `unread'-tagged messages"
+ (interactive)
+ (notmuch-hello-search "tag:unread")))
+ ("i" . (lambda ()
+ "Search for `inbox'-tagged messages"
+ (interactive)
+ (notmuch-hello-search "tag:inbox")))
+ ("l" . (lambda ()
+ "Search for `latest'-tagged messages"
+ (interactive)
+ (notmuch-hello-search "tag:latest")))
+ ("e" . (lambda ()
+ "Search for `encrypted'-tagged messages"
+ (interactive)
+ (notmuch-hello-search "tag:encrypted"))))
+ (:map notmuch-search-mode-map
+ ("k" . (lambda ()
+ "Mark message read"
+ (interactive)
+ (notmuch-search-tag '("-unread"))
+ ;; (notmuch-search-archive-thread)
+ (notmuch-search-next-thread)))
+ ("u" . (lambda ()
+ "Mark message unread"
+ (interactive)
+ (notmuch-search-tag '("+unread"))
+ (notmuch-search-next-thread)))
+ ("K" . (lambda ()
+ "Mark message deleted"
+ (interactive)
+ (notmuch-search-tag '("-unread" "-inbox" "+deleted"))
+ (notmuch-search-next-thread)))
+ ("S" . (lambda ()
+ "Mark message as spam"
+ (interactive)
+ (notmuch-search-tag '("-unread" "-inbox" "-webmasters" "+spam"))
+ (notmuch-search-next-thread))))
+ (:map notmuch-tree-mode-map
+ ("k" . (lambda ()
+ "Mark message read"
+ (interactive)
+ (notmuch-tree-tag '("-unread"))
+ ;; (notmuch-tree-archive-thread)
+ (notmuch-tree-next-message)))
+ ("u" . (lambda ()
+ "Mark message unread"
+ (interactive)
+ (notmuch-tree-tag '("+unread"))
+ (notmuch-tree-next-message)))
+ ("K" . (lambda ()
+ "Mark message deleted"
+ (interactive)
+ (notmuch-tree-tag '("-unread" "-inbox" "+deleted"))
+ (notmuch-tree-next-message)))
+ ("S" . (lambda ()
+ "Mark message as spam"
+ (interactive)
+ (notmuch-tree-tag '("-unread" "-inbox" "-webmasters" "+spam"))
+ (notmuch-tree-next-message)))))
+
+(use-package counsel-notmuch
+ :bind ("C-c s m" . counsel-notmuch))
+
+(after! notmuch-crypto
+ (setq notmuch-crypto-process-mime t))
+
+(after! recentf
+ (add-to-list 'recentf-exclude (expand-file-name amin-maildir)))
+#+end_src
+
+** supercite
+
+#+begin_src emacs-lisp :tangle no
+(use-package supercite
+ :commands sc-cite-original
+ :init
+ (add-hook 'mail-citation-hook 'sc-cite-original)
+
+ (defun sc-remove-existing-signature ()
+ (save-excursion
+ (goto-char (region-beginning))
+ (when (re-search-forward message-signature-separator (region-end) t)
+ (delete-region (match-beginning 0) (region-end)))))
+
+ (add-hook 'mail-citation-hook 'sc-remove-existing-signature)
+
+ (defun sc-remove-if-not-mailing-list ()
+ (unless (assoc "list-id" sc-mail-info)
+ (setq attribution sc-default-attribution
+ citation (concat sc-citation-delimiter
+ sc-citation-separator))))
+
+ (add-hook 'sc-attribs-postselect-hook 'sc-remove-if-not-mailing-list)
+
+ :config
+ (defun sc-fill-if-different (&optional prefix)
+ "Fill the region bounded by `sc-fill-begin' and point.
+Only fill if optional PREFIX is different than
+`sc-fill-line-prefix'. If `sc-auto-fill-region-p' is nil, do not
+fill region. If PREFIX is not supplied, initialize fill
+variables. This is useful for a regi `begin' frame-entry."
+ (if (not prefix)
+ (setq sc-fill-line-prefix ""
+ sc-fill-begin (line-beginning-position))
+ (if (and sc-auto-fill-region-p
+ (not (string= prefix sc-fill-line-prefix)))
+ (let ((fill-prefix sc-fill-line-prefix))
+ (unless (or (string= fill-prefix "")
+ (save-excursion
+ (goto-char sc-fill-begin)
+ (or (looking-at ">+ +")
+ (< (length
+ (buffer-substring (point)
+ (line-end-position)))
+ 65))))
+ (fill-region sc-fill-begin (line-beginning-position)))
+ (setq sc-fill-line-prefix prefix
+ sc-fill-begin (line-beginning-position)))))
+nil))
+#+end_src
+
+* Blogging
+** [[https://ox-hugo.scripter.co][ox-hugo]]
+
+#+begin_src emacs-lisp
+(use-package ox-hugo
+ :after ox)
+
+(use-package ox-hugo-auto-export
+ :load-path "lib/ox-hugo")