#+PROPERTY: header-args:emacs-lisp :tangle yes
#+TITLE: Emacs Configuration
* Literate emacs configuration

I can never rembember what various configs do. Jumping on this literate emacs
config to see if it helps!

** Start the emacs server

Starting as a server lets me connect externally to do things like change
themes, save buffers via cron and other such dumbary!

#+begin_src emacs-lisp
(load "server")
(unless (server-running-p) (server-start))
#+end_src

** Interface and Behavior
*** Interface

Global font
#+begin_src emacs-lisp
  (set-frame-font "Go Mono 11")
#+end_src

Use 80 columns, this helps keep things readable when windows are split
#+begin_src emacs-lisp
(setq whitespace-style '(trailing lines space-before-tab)
      whitespace-line-column 80)
(setq-default fill-column 80)
#+end_src

I know I am in emacs, don't need to see the startup screen.
#+begin_src emacs-lisp
(setq inhibit-startup-screen t)
#+end_src

**** Use UTF8 where ever possible
#+begin_src emacs-lisp
(prefer-coding-system 'utf-8)
(set-default-coding-systems 'utf-8)
(set-terminal-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)
#+end_src

**** Change various UI bits
#+begin_src emacs-lisp
(tool-bar-mode -1)
(menu-bar-mode -1)
(scroll-bar-mode -1)
(column-number-mode +1)
(global-font-lock-mode 1)
#+end_src

**** direnv

#+begin_src emacs-lisp
  (use-package direnv
    :config
    (direnv-mode))
#+end_src

**** project.el

#+begin_src emacs-lisp
  (setq project-list-file (expand-file-name "~/.emacs.d/projects"))
#+end_src

**** transient

#+begin_src emacs-lisp
  (setq transient-history-file (expand-file-name "~/.emacs.d/transient"))
#+end_src

*** Behavior

Switch various defaults to be more comfortable for myself.

#+begin_src emacs-lisp
  (fset 'yes-or-no-p 'y-or-n-p)
  (show-paren-mode t)

  (setq desktop-dirname             "~/.emacs.d/"
        desktop-base-file-name      "emacs.desktop"
        desktop-base-lock-name      "lock"
        desktop-path                (list desktop-dirname)
        desktop-save                t
        desktop-files-not-to-save   "^$" ;reload tramp paths
        desktop-load-locked-desktop nil
        desktop-auto-save-timeout   30)
  (desktop-save-mode 1)

  (setq backup-directory-alist '(("." . "~/.emacs-saves")))
  (setq auto-mode-alist
        (append
         (list
          '("\\.gpg$" . sensitive-minor-mode)
          )
         auto-mode-alist))
  (setq auth-sources
        '((:source "~/.netrc")))
#+end_src

Use spelling and auto-fill when we are in text mode.

#+begin_src emacs-lisp
(add-hook 'text-mode-hook (lambda ()
			    (auto-fill-mode 1)
			    (turn-on-flyspell)))
#+end_src

** Unset custom-file

The customization file mostly just causes churn in the SCM so we disable it
here.
#+begin_src emacs-lisp
(setq custom-file (make-temp-file ""))
#+end_src

* Packages

** parchment-theme
This is a nice theme that resembles acme in plan9. Minimal.

#+begin_src emacs-lisp
(use-package parchment-theme
  :config (load-theme 'parchment t))
#+end_src

** keychain-environment

I make heavy use of ~ssh-agent~ this lets emacs pickup / use the existing
agents I have running.

#+begin_src emacs-lisp
(use-package keychain-environment
  ;;:pin "melpa"
  :init
  (keychain-refresh-environment))
#+end_src

** ivy

~ivy~ is fantastic. It gives me nice visual search for buffers,
code.. etc. Combined with ~smex~ for sorting (shows last used things first) and
~counsel~ (extends ivy into various areas like the help stuff).

#+begin_src emacs-lisp
  (use-package counsel)
  (setq smex-save-file (expand-file-name "~/.emacs.d/smex.save"))
  (use-package smex)
  (use-package ivy
    :hook (after-init . ivy-mode)
    :bind
    ("C-s"     . swiper)
    ("M-x"     . counsel-M-x)
    ("C-x C-f" . counsel-find-file)
    ("C-x b"   . ivy-switch-buffer))
#+end_src

** magit

Magit is a awesome. Not sure what else to say about it. :P

#+begin_src emacs-lisp
(use-package magit
  :bind ("C-c m" . magit-status)
  :init
  (setq magit-completing-read-function 'ivy-completing-read))
#+end_src

** lsp

Use ~eglot~ for lsp stuff. It's built in and shows a bit more information for
auto-completion stuff. 

#+begin_src emacs-lisp
  (use-package eglot
    :config
    (add-hook 'go-mode-hook 'eglot-ensure)
    (add-hook 'elm-mode-hook 'eglot-ensure)
    (add-hook 'nix-mode-hook 'eglot-ensure)
    (add-hook 'typescript-mode-hook 'eglot-ensure)
    (add-hook 'ruby-mode-hook 'eglot-ensure)
    (add-hook 'perl-mode-hook 'eglot-ensure)
    (define-key eglot-mode-map (kbd "C-c r") 'eglot-rename)
    (define-key eglot-mode-map (kbd "C-c f") 'eglot-format)
    (add-hook 'before-save-hook 'eglot-format-buffer))

#+end_src

** company and friends

~company~ allows for auto-completion of various things. It can interface with ~lsp-mode~ to complete
things like Go.

#+begin_src emacs-lisp
(use-package company
  :config
  (setq company-tooltip-limit 20
	company-minimum-prefix-length 1
	company-idle-delay .3
	company-echo-delay 0)
  :hook (prog-mode . company-mode))
#+end_src

** gitgutter
This gives me a nice in-ui way to see modifications and what not.

#+begin_src emacs-lisp
(use-package git-gutter
  :hook
  (after-init . global-git-gutter-mode))
#+end_src

** shell

I don't often use the shell from emacs, but when I do these bits make it
easier for me to treat it like a regular shell.

#+begin_src emacs-lisp
  ;; Kill terminal buffers on exit so I din't have to kill the buffer after I exit.
  (defadvice term-handle-exit
      (after term-kill-buffer-on-exit activate)
    (kill-buffer))
#+end_src

** sr-speedbar

Speedbar is almost perfect.. If it only ran in the current frame!! :D

**** Enter sr-speedbar

#+begin_src emacs-lisp
  (use-package sr-speedbar)
#+end_src

*** Speedbar options
#+begin_src emacs-lisp
  (setq
   speedbar-show-unknown-files t
   sr-speedbar-right-side nil)

  (global-set-key (kbd "C-x C-n") 'sr-speedbar-toggle)
#+end_src

* Language Configurations

** Shell

#+begin_src emacs-lisp
  (use-package shfmt)
  (add-hook 'sh-mode-hook 'shfmt-on-save-mode)
#+end_src

** Typescript

#+begin_src emacs-lisp
  (use-package typescript-mode)
#+end_src

** Nix

#+begin_src emacs-lisp
  (use-package nix-mode
    :mode "\\.nix\\'")
#+end_src

** Elm

#+begin_src emacs-lisp
  (use-package elm-mode)
#+end_src

** Haskell

#+begin_src emacs-lisp
  (use-package haskell-mode)
#+end_src

** Go

*** go-add-tags

This lets one select a ~struct~ or similar and auto add the ~`json:"NAME"`~ bits.

#+begin_src emacs-lisp
  (use-package go-add-tags)
#+end_src

*** go-mode

This allows for things like ~gofmt~ and auto adding / removing of imports.

#+begin_src emacs-lisp
  (use-package go-mode
    :bind
    ("C-c t" . go-add-tags))
  (defun xin-eglot-organize-imports () (interactive)
         (eglot-code-actions nil nil "source.organizeImports" t))
  (defun lsp-go-install-save-hooks ()
    (add-hook 'before-save-hook 'xin-eglot-organize-imports nil t))
  (add-hook 'go-mode-hook #'lsp-go-install-save-hooks)
#+end_src

*** go-eldoc

This extends eldoc to be able to speak Go - quite handy for quickly looking
up what things do.

#+begin_src emacs-lisp
(use-package go-eldoc
  :hook
  (go-mode . go-eldoc-setup))
#+end_src

* org-mode

Oh ~org-mode~. It's the reason I started using emacs.. and it's the reason I
can't quit!

** Config
#+begin_src emacs-lisp
  (org-babel-do-load-languages
   'org-babel-load-languages
   '((plantuml . t)
     (dot      . t)
     (latex    . t)))
#+end_src
** Publish bits

I publish some of my notes [[https://suah.dev/p][on suah.dev/p]]. Also some recipes.

#+begin_src emacs-lisp
  (setq my-org-publish-alist
        '(("notes" :components ("org-notes" "notes-static" "notes-rss"))
          ("deftly" :components ("deftly-blog" "deftly-static"))
          ("ohmyksh" :components ("ohmy-web" "ohmy-static"))
          ("org-notes"
           :auto-preamble t
           :auto-sitemap t
           :headline-levels 4
           :publishing-directory "/ssh:suah.dev:/var/www/suah.dev/p/"
           :publishing-function org-html-publish-to-html
           :recursive t
           :section-numbers nil
           :html-head "<link rel=\"stylesheet\" href=\"https://suah.dev/p/css/stylesheet.css\" type=\"text/css\" />"
           :html-link-home "http://suah.dev/p/"
           :html-link-up "../"
           :style-include-default nil
           :sitemap-filename "index.org"
           :sitemap-title "Notes"
           :with-title t
           :author-info nil
           :creator-info nil
           :base-directory "~/org/notes")
          ("deftly-blog"
           :auto-preamble t
           :auto-sitemap t
           :headline-levels 1
           :publishing-directory "/ssh:suah.dev:/var/www/deftly.net/new/"
           :publishing-function org-html-publish-to-html
           :recursive t
           :section-numbers nil
           :html-head "<link rel=\"stylesheet\" href=\"https://deftly.net/new/css/stylesheet.css\" type=\"text/css\" />"
           :html-link-home "http://deftly.net/new"
           :html-link-up "../"
           :style-include-default nil
           :sitemap-title "Deftly.net"
           :with-title t
           :author-info t
           :creator-info nil
           :base-directory "~/org/deftly")
          ("ohmy-web"
           :auto-preamble t
           :auto-sitemap nil
           :headline-levels 2
           :publishing-directory "/ssh:suah.dev:/var/www/deftly.net/ohmyksh/"
           :publishing-function org-html-publish-to-html
           :recursive t
           :section-numbers nil
           :html-head "<link rel=\"stylesheet\" href=\"https://deftly.net/ohmyksh/css/stylesheet.css\" type=\"text/css\" />"
           :html-link-home "http://deftly.net/ohmyksh"
           :html-link-up "../"
           :style-include-default nil
           :with-title t
           :author-info t
           :creator-info nil
           :base-directory "~/src/ohmyksh")
          ("notes-static"
           :base-directory "~/org/notes"
           :publishing-directory "/ssh:suah.dev:/var/www/suah.dev/p/"
           :base-extension "css\\|js\\|png\\|jpg\\|gif\\|pdf\\|mp3\\|ogg\\|svg"
           :recursive t
           :publishing-function org-publish-attachment)
          ("deftly-static"
           :base-directory "~/org/deftly"
           :publishing-directory "/ssh:suah.dev:/var/www/deftly.net/new/"
           :base-extension "css\\|js\\|png\\|jpg\\|gif\\|pdf\\|mp3\\|ogg"
           :recursive t
           :publishing-function org-publish-attachment)
          ("ohmy-static"
           :base-directory "~/src/ohmyksh"
           :publishing-directory "/ssh:suah.dev:/var/www/deftly.net/ohmyksh/"
           :base-extension "css\\|js\\|png\\|jpg\\|gif\\|pdf\\|mp3\\|ogg"
           :recursive t
           :publishing-function org-publish-attachment)
          ("notes-rss"
           :publishing-directory "/ssh:suah.dev:/var/www/suah.dev/p/"
           :publishing-function org-rss-publish-to-rss
           :recursive t
           :rss-extension "xml"
           :section-numbers nil
           :exclude ".*"
           :include ("index.org")
           :table-of-contents nil
           :base-directory "~/org/notes")
          ("mammoth"
           :publishing-directory "/ssh:suah.dev:/var/www/mammothcircus.com/"
           :publishing-function org-html-publish-to-html
           :author-info nil
           :creator-info nil
           :section-numbers nil
           :recursive t
           :base-directory "~/org/mammoth")
          ("recipes"
           :auto-preamble t
           :auto-sitemap t
           :headline-levels 4
           :publishing-directory "/ssh:suah.dev:/var/www/suah.dev/recipes/"
           :publishing-function org-html-publish-to-html
           :recursive t
           :section-numbers nil
           :html-head "<link rel=\"stylesheet\" href=\"https://suah.dev/p/css/stylesheet.css\" type=\"text/css\" />"
           :html-link-home "http://suah.dev/recipes/"
           :html-link-up "../"
           :style-include-default nil
           :sitemap-filename "index.org"
           :sitemap-title "Recipes"
           :with-title t
           :author-info nil
           :creator-info nil
           :base-directory "~/org/recipes")
          ))
#+end_src

** Capture templates

#+begin_src emacs-lisp
(setq my-org-capture-templates
      `(("t" "TODO"
	 entry (file+headline "~/org/todo.org" "TODOs")
	 ,(concat
	   "* TODO %?\n"
	   ":PROPERTIES:\n"
	   ":LOGGING: TODO(!) WAIT(!) DONE(!) CANCELED(!)\n"
	   ":END:\n") :prepend t)
	("f" "TODO with File"
	 entry (file+headline "~/org/todo.org" "TODOs")
	 ,(concat
	   "* TODO %?\n"
	   ":PROPERTIES:\n"
	   ":LOGGING: TODO(!) WAIT(!) DONE(!) CANCELED(!)\n"
	   ":END:\n"
	   "%i\n  %a") :prepend t)
	("b" "Bug"
	 entry (file+olp+datetree "~/org/bugs.org" "Bugs")
	 "* BUG %?\nEntered on %U\n  :PROPERTIES:\n  :FILE: %a\n  :END:\n" :prepend t)
	("p" "Protocol"
	 entry (file+headline "~/org/links.org" "Links")
	 "* %^{Title}\nSource: %u, %c\n #+BEGIN_QUOTE\n%i\n#+END_QUOTE\n\n\n%?")
	("L" "Protocol Link" entry (file+headline "~/org/links.org" "Links")
	 "* %? %:link\n%:description\n")
	("j" "Journal"
	 entry (file+olp+datetree "~/org/journal.org")
	 "* %?\nEntered on %U\n  %i\n")))
#+end_src

** org

#+begin_src emacs-lisp
  (use-package org
    :hook
    (org-mode . (lambda ()
                  (turn-on-flyspell)
                  (auto-revert-mode)
                  (auto-fill-mode 1)))
    :bind
    ("C-c c" . org-capture)
    ("C-c p" . org-publish)
    ("C-c l" . org-store-link)
    ("C-c a" . org-agenda)
    ("C-c b" . org-iswitchb)
    :config
    (load-library "find-lisp")
    (setq org-directory "~/org"
          org-agenda-files (find-lisp-find-files "~/org" "\.org$")
          org-startup-indented t
          org-log-done 'time
          org-export-with-sub-superscripts nil
          org-html-inline-images t
          org-log-into-drawer t
          org-src-tab-acts-natively t
          org-agenda-skip-scheduled-if-deadline-is-shown t
          org-todo-keywords '((sequence "TODO(t)" "|" "DONE(d)")
                              (sequence "REPORT(r)" "BUG(b)" "KNOWNCAUSE(k)" "|" "FIXED(f)")
                              (sequence "|" "CANCELED(c)")))
    (setq org-publish-project-alist my-org-publish-alist)
    (setq org-capture-templates my-org-capture-templates))
  (use-package org-contrib)

#+end_src

** Extra bits
#+begin_src emacs-lisp
(use-package org-journal
  :defer t
  :config
  (setq org-journal-dir "~/org/journal/"
	org-journal-file-format "%Y/%m-%d"
	org-journal-date-format "%A, %d %B %Y"))
#+end_src

Add in some org-mode helpers:

- ~org-habit~ lets me keep track of TODOs and other things.
- ~org-checklist~ lets me reset checklists for reoccurring tasks.
  - This requires one to ~pkg_add a2ps~.
  - ~RESET_CHECK_BOXES~ property to be set to ~t~ on a task
    headline. (properties can be set via ~C-c C-x d~
#+begin_src emacs-lisp
(require 'org-habit)
(require 'org-checklist)
#+end_src

Custom agenda commands for various things.

- ~Daily habits~ shows how well I am keeping track of daily things.
#+begin_src emacs-lisp
(setq org-agenda-custom-commands
      '(("h" "Daily habits"
	 ((agenda ""))
	 ((org-agenda-show-log t)
	  (org-agenda-ndays 7)
	  (org-agenda-log-mode-items '(state))))))
#+end_src

* mu4e
~mu~ has been the best mail client for me on emacs.

** Initializing mu

The defaults ~mu~ uses make no sense. ~~/.cache~ is for .. caching data, not
persistent databases.. So we init things with sane defaults:

#+begin_src shell
mu init --muhome=/home/qbit/.mu -m /home/qbit/Maildir/fastmail/ --my-address="aaron@bolddaemon.com"
#+end_src

** General mail configuration

#+begin_src emacs-lisp
  (require 'smtpmail)
  (setq user-mail-address              "aaron@bolddaemon.com"
        user-full-name                 "Aaron Bieber"
        message-send-mail-function     'smtpmail-send-it
        message-kill-buffer-on-exit    t
        smtpmail-smtp-user             "qbit@fastmail.com"
        smtpmail-smtp-server           "smtp.fastmail.com"
        smtpmail-smtp-service          465
        smtpmail-default-smtp-server   "smtp.fastmail.com"
        smtpmail-stream-type           'ssl)
#+end_src

** mu4e specific configs
#+begin_src emacs-lisp
  (use-package mu4e
    :init
    (require 'mu4e-speedbar)
    (setq mail-user-agent 'mu4e-user-agent
          read-mail-command 'mu4e
          mu4e-get-mail-command "mbsync fastmail"
          mu4e-update-interval 420
          mu4e-compose-context-policy nil
          mu4e-context-policy 'pick-first
          mu4e-drafts-folder "/Drafts"
          mu4e-sent-folder   "/Sent Items"
          mu4e-trash-folder  "/Trash"
          mu4e-maildir-shortcuts
          '( ("/INBOX"        . ?i)
             ("/Archive"      . ?a)
             ("/Sent Items"   . ?s))
          org-mu4e-link-query-in-headers-mode nil
          mu4e-attachment-dir
          (lambda (fname mtype)
            (cond
             ((and fname (string-match "\\.diff$" fname))  "~/patches")
             ((and fname (string-match "\\.patch$" fname))  "~/patches")
             ((and fname (string-match "\\.diff.gz$" fname))  "~/patches")
             (t "~/Downloads")))
          mu4e-bookmarks
               `(( :name "Inbox"
                   :query "maildir:/Inbox AND NOT flag:trashed"
                   :key ?i)
                 ( :name "TODO"
                   :query "maildir:/TODO AND NOT flag:trashed"
                   :key ?T)
                 ( :name  "Unread messages"
                   :query "flag:unread AND NOT flag:trashed AND NOT list:ports-changes.openbsd.org AND NOT list:source-changes.openbsd.org"
                   :key ?u)
                 ( :name  "Today's messages"
                   :query "date:today..now"
                   :key ?d)
                 ( :name  "Hackers"
                   :query "list:hackers.openbsd.org AND NOT flag:trashed"
                   :key ?h)
                 ( :name   "Bugs"
                   :query  "list:bugs.openbsd.org AND NOT flag:trashed"
                   :key ?b)
                 ( :name  "Tech"
                   :query "list:tech.openbsd.org AND NOT flag:trashed"
                   :key ?t)
                 ( :name  "Ports"
                   :query "list:ports.openbsd.org AND NOT flag:trashed"
                   :key ?p)
                 ( :name "Misc"
                   :query "list:misc.openbsd.org AND NOT flag:trashed"
                   :key ?m)
                 ( :name "9front"
                   :query "list:9front.9front.org AND NOT flag:trashed"
                   :key ?9)
                 ( :name "GOT"
                   :query "list:gameoftrees.openbsd.org AND NOT flag:trashed"
                   :key ?g))))
#+end_src