dotfiles/emacs/.emacs.d/init.org

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Org Mode

#+TITLE: Tom-Emacs Interface
#+STARTUP: showall
This is my personal Emacs configuration. The name was inspired by
"Ghost in the Shell 2: Man-Machine Interface and Ryan Rix's "Complete
Computing Environment".
To start off, first I need to enable lexical binding.
#+BEGIN_SRC emacs-lisp :padline no
;; -*- lexical-binding: t; -*-
#+END_SRC
* Package configuration
Require package.el since I immediately start using its variables and
functions anyway, no need to delay loading.
#+BEGIN_SRC emacs-lisp
(require 'package)
#+END_SRC
Add the MELPA and org package archives because I like living on the
bleeding edge. This should be done both at run-time and compile-time
so I can install packages at compile time.
#+BEGIN_SRC emacs-lisp
(eval-and-compile
(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/"))
(add-to-list 'package-archives '("org" . "http://orgmode.org/elpa/")))
#+END_SRC
Add the directory with my mode-specific configuration files to the
load path.
#+BEGIN_SRC emacs-lisp
(add-to-list 'load-path (locate-user-emacs-file "init/"))
#+END_SRC
Add all my vendored packages to the load path.
#+BEGIN_SRC emacs-lisp
(eval-and-compile
(mapc (lambda (d) (add-to-list 'load-path d))
(directory-files
(locate-user-emacs-file "vendor-lisp/") t "^[^.]")))
#+END_SRC
Initialize package.el so that packages can be loaded and used. This
also needs to be done at both run-time and compile-time so packages
can be installed at compile-time.
#+BEGIN_SRC emacs-lisp
(eval-and-compile (package-initialize))
#+END_SRC
Some actions produce a lot of output that is usually uninteresting
during compilation. However, this information may be crucial when an
error occurs. So for these actions I can use this macro, which
stores all sent messages in a temporary buffer and prints them when
an error occurs, and hides them when it doesn't.
#+BEGIN_SRC emacs-lisp
(defmacro silently (title &rest body)
"Only output something when an error occurs.
Prefix with TITLE any output that occurs while executing BODY,
but only when an error occurs, otherwise discard it."
(declare (indent 1))
(let ((buffer-var (cl-gensym))
(error-var (cl-gensym)))
`(with-temp-buffer
(let ((,buffer-var (current-buffer)))
(cl-letf (((symbol-function 'message)
(lambda (msg &rest args)
(with-current-buffer ,buffer-var
(insert " " (apply 'format msg args) "\n")))))
(condition-case ,error-var
(progn ,@body)
(error
(princ ,(concat title " output:\n"))
(princ (with-current-buffer ,buffer-var (buffer-string)))
(princ "Error:\n")
(princ " ")
(princ (cadr ,error-var))
(princ "\n"))))))))
#+END_SRC
Refresh the package contents so packages can be installed from all
configured archives. Don't do this at run-time because it slows down
the process too much.
#+BEGIN_SRC emacs-lisp
(eval-when-compile
(let* ((not-installed (seq-remove 'package-installed-p
package-selected-packages))
(available (seq-filter (lambda (p)
(assq p package-archive-contents))
not-installed))
(difference (- (length not-installed) (length available))))
(when (> difference 0)
(silently "Refresh packages"
(package-refresh-contents)))
(when available
(mapc (lambda (p) (package-install p t)) available))))
#+END_SRC
* Site lisp
Setup everything so that any autoloads in ~site-lisp/~ get loaded
and can be used.
#+BEGIN_SRC emacs-lisp
(eval-and-compile
(add-to-list 'load-path (locate-user-emacs-file "site-lisp/"))
(let ((loaddefs (locate-user-emacs-file "site-lisp/site-autoloads.el")))
(when (file-exists-p loaddefs)
(load loaddefs))))
#+END_SRC
* Helper functions
I have some helper functions stored away in a separate file.
#+BEGIN_SRC emacs-lisp
(require 'oni-helpers)
#+END_SRC
* Backups
I don't like having every directory filled with "filename~"
files. So instead of saving backup files to the same directory, save
them to a special one instead.
#+BEGIN_SRC emacs-lisp
(setq backup-directory-alist `((".*" . ,(oni:data-location "backup-files/"))))
#+END_SRC
* Auto saves
I prefer to keep all autosave files in a single directory so they
don't clog up my filesystem so much. Usually these files get
deleted, but sometimes they don't, and I don't think they look
pretty. Add it to the end of the list because the default value
stores auto-saves for remote files in /tmp, which is fine by me.
#+BEGIN_SRC emacs-lisp
(add-to-list 'auto-save-file-name-transforms
`(".*" ,(oni:data-location "auto-save-files/") t) :append)
#+END_SRC
Place the files which contain the auto save files in a similar
directory.
#+BEGIN_SRC emacs-lisp
(setq auto-save-list-file-prefix (oni:data-location "auto-save-list/.saves-"))
#+END_SRC
* Tabs
Generally I prefer using spaces over tabs. Especially for lisp-like
languages.
#+BEGIN_SRC emacs-lisp
(setq-default indent-tabs-mode nil)
#+END_SRC
A tab-width of 8 is too wide for me, and 2 is too narrow. 4 is just
right.
#+BEGIN_SRC emacs-lisp
(setq-default tab-width 4)
#+END_SRC
* Font
Set the default font to a more pleasing one, in my opinion, with a
better size as well.
#+BEGIN_SRC emacs-lisp
(add-to-list 'default-frame-alist '(font . "Fantasque Sans Mono-15"))
#+END_SRC
* Internal border
For aesthetics I like to have a thick border on the inside of my
Emacs window. I have the same border in URxvt, but I haven't found
out how to add it to Conkeror yet.
#+BEGIN_SRC emacs-lisp
(add-to-list 'default-frame-alist '(internal-border-width . 15))
#+END_SRC
* Menu bar
I don't use the menu bar, so it just takes up space.
#+BEGIN_SRC emacs-lisp
(menu-bar-mode -1)
#+END_SRC
* Tool bar
I don't use the tool bar, so it just takes up space.
#+BEGIN_SRC emacs-lisp
(tool-bar-mode -1)
#+END_SRC
* Scroll bar
I don't use the scroll bar to either navigate my buffers or see
whereabouts I am, so they just take up space.
#+BEGIN_SRC emacs-lisp
(scroll-bar-mode -1)
#+END_SRC
* Cursor
Use a bar cursor instead of a box.
#+BEGIN_SRC emacs-lisp
(setq-default cursor-type '(bar . 2))
#+END_SRC
* Whitespace
I hate it when trailing whitespace is left around a file. I've been
using this for years, and apart from having some trouble working
with people who don't pay attention to it, it has worked flawlessly.
#+BEGIN_SRC emacs-lisp
(require 'destroy-trailing-whitespace)
(global-destroy-trailing-whitespace-mode)
#+END_SRC
Having a final newline at the end of the file is always a good
idea. Some programs just don't work without it and others produce
some strange results. Github diffs are an example.
#+BEGIN_SRC emacs-lisp
(setq require-final-newline t)
#+END_SRC
* Long lines
By default Emacs wraps long lines around to the next line when they
reach the far end of the window. However I prefer to have them
truncated instead.
#+BEGIN_SRC emacs-lisp
(setq-default truncate-lines t)
#+END_SRC
* Theme
#+BEGIN_SRC emacs-lisp
(add-to-list 'custom-theme-load-path
(concat user-emacs-directory "vendor-lisp/yoshi-theme"))
(load-theme 'yoshi :no-confirm)
#+END_SRC
* Diminish
I really don't need to see some of the minor modes.
#+BEGIN_SRC emacs-lisp
(require 'diminish)
#+END_SRC
* Ivy
Ivy is a completing read implementation that offers choises
vertically. I'm surprised how much I like it. I've tried Swiper
before and I didn't like that so much.
Since I immediately use and enable Ivy, there's no need to autoload
it, so require it to keep the byte-compiler quiet.
#+BEGIN_SRC emacs-lisp
(require 'ivy)
#+END_SRC
Don't show that ivy is enabled in the mode-line. It's enabled
globally and I'll notice it from other things anyway (like it
showing up).
#+BEGIN_SRC emacs-lisp
(diminish 'ivy-mode)
#+END_SRC
Enable fuzzy matching in Ivy.
#+BEGIN_SRC emacs-lisp
(setq ivy-re-builders-alist '((t . ivy--regex-fuzzy))
ivy-initial-inputs-alist nil)
#+END_SRC
Enable Ivy.
#+BEGIN_SRC emacs-lisp
(ivy-mode)
#+END_SRC
* Counsel
Counsel is a group of functions that use Ivy to specialize on
certain built-in commands, such as M-x.
Since I enable Counsel mode immediately, there's no point in leaving
it to be autoloaded. Requiring it keeps the byte-compiler happy.
#+BEGIN_SRC emacs-lisp
(require 'counsel)
#+END_SRC
Hide dotfiles in =counsel-find-file=.
#+BEGIN_SRC emacs-lisp
(setq counsel-find-file-ignore-regexp
(rx (or (and bos ".")
(and ".zwc" eos))))
#+END_SRC
Enable Counsel.
#+BEGIN_SRC emacs-lisp
(counsel-mode)
#+END_SRC
Don't show that counsel is enabled in the mode-line. It's enabled
globally and I'll notice whenever I press M-x for example.
#+BEGIN_SRC emacs-lisp
(diminish 'counsel-mode)
#+END_SRC
* Bookmarks
Save bookmarks in my data directory so my =user-emacs-directory= is less cluttered.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'bookmark))
(setq bookmark-default-file (oni:data-location "bookmarks"))
#+END_SRC
* Personal info
Set some personal info for, for example, Gnus to use.
#+BEGIN_SRC emacs-lisp
(setq user-full-name "Tom Willemse"
user-mail-address "tom@ryuslash.org")
#+END_SRC
* Automatic alignment
Emacs has some powerful automatic alignment features.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'align))
#+END_SRC
** CSS
Align CSS files like so:
#+BEGIN_SRC css
body { color: #ffffff; }
.some-class { background-color: #ffffff; }
#some-id { width: 200px; }
.some-more-class {
color: #ffffff;
background-color: #ffffff;
width: 200px;
}
#+END_SRC
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'align
;; Keep these in order. They are each added to the _front_ of the
;; list and are applied in order. Changing their order will change
;; the results.
(add-to-list 'align-rules-list
`(css-closing-brace
(regexp . ,(rx (group (0+ whitespace)) "}" eol))
(group . (1))
(modes . '(scss-mode css-mode))))
(add-to-list 'align-rules-list
`(css-colons
(regexp . ,(rx bol
(0+ whitespace)
(1+ (any (?a . ?z) ?- ?$))
":"
(group (0+ whitespace))
(0+ nonl)
";"
eol))
(group . (1))
(modes . '(scss-mode css-mode))
(repeat . t)))
(add-to-list 'align-rules-list
`(css-opening-brace
(regexp . ,(rx bol
(0+ whitespace)
(0+ (any ?# ?. ?, ?\s ?& ?: ?-
(?a . ?z) (?A . ?Z) (?0 . ?9)))
(any (?a . ?z) (?A . ?Z) (?0 . ?9))
(group (0+ whitespace))
"{"
(0+ nonl)))
(group . (1))
(modes . '(scss-mode css-mode)))))
#+END_SRC
** PHP
In PHP code it's nice to have any ~=>~ aligned.
#+BEGIN_SRC php
<?php
array(
'foo' => 'bar',
'frob' => 'baz'
);
?>
#+END_SRC
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'align
(add-to-list 'align-rules-list
`(php-array-arrow
(regexp . ,(rx any (group whitespace) "=>" any))
(group . (1))
(modes . '(php-mode web-mode))
(repeat . t))))
#+END_SRC
* Url browsing
Use Conkeror to open URLs.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'browse-url))
(with-eval-after-load 'browse-url
(setq browse-url-browser-function 'browse-url-conkeror))
#+END_SRC
* Minibuffer
Enable paredit mode in the minibuffer.
#+BEGIN_SRC emacs-lisp
(add-hook 'minibuffer-setup-hook 'electric-pair-local-mode)
#+END_SRC
* Minor modes
- [[file:init/oni-company-init.org][Company mode]] :: A better auto completion system than auto
complete.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'company (load "oni-company-init"))
#+END_SRC
** Paredit
Paredit is an awesome minor-mode to have when you write in any
lisp-like languages. It can feel rather strict and uncomfortable at
first, but once you get the hang of using it, you won't want to
live without it.
Don't show that paredit is enabled, it should be obvious from the
effects it has. This will save some precious real-estate on my mode
line.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'paredit
(diminish 'paredit-mode))
#+END_SRC
** Electric indent mode
By default `electric-indent-mode' is enabled globally, but I prefer
to enable it locally where I need it.
#+BEGIN_SRC emacs-lisp
(electric-indent-mode -1)
#+END_SRC
Since Emacs 24 `electric-indent-mode' switches the behavior of the
C-j and RET keys. I prefer the original situation because my
muscle-memory still remembers to use C-j for newline-and-indent
behaviour.
#+BEGIN_SRC emacs-lisp
(defun oni:switch-newline-keys ()
"Switch the C-j and RET keys in the local buffer."
(if electric-indent-mode
(progn
(local-set-key (kbd "C-j") 'newline)
(local-set-key (kbd "RET") 'electric-newline-and-maybe-indent))
(local-unset-key (kbd "C-j"))
(local-unset-key (kbd "RET"))))
(add-hook 'electric-indent-local-mode-hook #'oni:switch-newline-keys)
#+END_SRC
** Flycheck
Flycheck lets me see (compiler) errors, warnings and info messages
while writing code.
When developing packages with Cask, some special care needs to be
taken to ensure the checkers work correctly.
#+BEGIN_SRC emacs-lisp
(add-hook 'flycheck-mode-hook 'flycheck-cask-setup)
#+END_SRC
I disable the pylint and pyflakes checkers because they don't seem
to add much except noise when used together with flake8. Also
pylint seems hell-bent on making Python written like a
statically-typed langauge.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'flycheck
(mapc (lambda (c) (delq c flycheck-checkers))
'(python-pylint python-pyflakes)))
#+END_SRC
Also show which columns messages appear in.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'flycheck
(setq flycheck-highlighting-mode 'columns))
#+END_SRC
Show the error message at point in a tooltip.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'flycheck
(require 'flycheck-pos-tip)
(flycheck-pos-tip-mode))
#+END_SRC
Shorten the flycheck mode line lighter.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'flycheck
(setq flycheck-mode-line-prefix ""))
#+END_SRC
** Auto revert mode
ARev isn't very descriptive, and fairly wide. Use a font-awesome icon instead.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'autorevert
(diminish 'auto-revert-mode
(propertize (concat " " (char-to-string #xf021))
'face '(:family "Font Awesome" :height 0.75))))
#+END_SRC
** Auto fill mode
"Fill" is fine as a mode-line lighter, but I prefer something
shorter.
#+BEGIN_SRC emacs-lisp
(diminish 'auto-fill-function
(propertize (concat " " (char-to-string #xf149))
'face '(:family "Font Awesome" :height 0.75)))
#+END_SRC
** Diff highlight mode
Show the state of lines added, changed and removed since the last
commit.
#+BEGIN_SRC emacs-lisp
(require 'diff-hl)
(global-diff-hl-mode)
#+END_SRC
** Hydra
Hydra is an interesting way of managing keybindings, I want to
experiment.
Add a hydra for org.
#+BEGIN_SRC emacs-lisp
(global-set-key (kbd "C-c o") 'oni-hydra-org/body)
#+END_SRC
Add a hydra for magit.
#+BEGIN_SRC emacs-lisp
(global-set-key (kbd "C-c m") 'oni-hydra-magit/body)
#+END_SRC
** Isearch
Replace the Isearch mode line lighter with a magnifying glass icon.
#+BEGIN_SRC emacs-lisp
(diminish 'isearch-mode
(propertize (concat " " (char-to-string #xf002))
'face '(:family "Font Awesome" :height 0.75)))
#+END_SRC
** Projectile
Projectile is, thus far, the best project module for Emacs.
Set the known projects file before loading projectile because
projectile loads the known projects as it's loading, not after.
#+BEGIN_SRC emacs-lisp
(setq projectile-known-projects-file
(oni:data-location "projectile-bookmarks.eld"))
#+END_SRC
Since I'm just going to use it anyway, require it immediately.
#+BEGIN_SRC emacs-lisp
(require 'projectile)
#+END_SRC
I don't like that projectile tries to take up so much space in my
mode-line, so I try to make it a little shorter.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'projectile
(setq projectile-mode-line
'(:eval
(if (file-remote-p default-directory)
" P"
(let ((name (projectile-project-name)))
(if (string= "-" name)
""
(format " P[%s]" name)))))))
#+END_SRC
Store projectile files in my data dir.
#+BEGIN_SRC emacs-lisp
(setq projectile-cache-file
(oni:data-location "projectile.cache"))
#+END_SRC
Enable it globally so I can always switch to/from projects.
#+BEGIN_SRC emacs-lisp
(projectile-mode)
#+END_SRC
Use Ivy for projectile completions.
#+BEGIN_SRC emacs-lisp
(setq projectile-completion-system 'ivy)
#+END_SRC
** Server mode
Diminish server mode with a nice icon.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'server
(diminish 'server-buffer-clients
(propertize (concat " " (char-to-string #xf233))
'face '(:family "Font Awesome" :height 0.75))))
#+END_SRC
* Major modes
Configuration for major modes is specified in dedicated
configuration files.
- [[file:init/js-mode.org][js-mode]] :: JavaScript mode is used by me for json files. js2-mode
doesn't work very nicely with json, always showing syntax
errors.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'js (load "oni-js-mode-init"))
#+END_SRC
- [[file:init/php-mode-init.org][php-mode]] :: I use PHP mode for files that only contain PHP code,
no HTML or anything.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'php-mode (load "oni-php-mode-init"))
#+END_SRC
- [[file:init/sh-mode-init.org][sh-mode]] :: Used for most types of shell scripting (bash, zsh,
etc.).
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'sh-mode (load "oni-sh-mode-init"))
#+END_SRC
- [[file:init/oni-css-mode-init.org][css-mode]] :: CSS and SCSS mode are used for stylesheets!
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'css-mode (load "oni-css-mode-init"))
#+END_SRC
- [[file:init/oni-emacs-lisp-mode-init.org][emacs-lisp-mode]] :: Emacs lisp is what powers all this Emacs
awesomeness.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'elisp-mode (load "oni-emacs-lisp-mode-init"))
#+END_SRC
- [[file:init/oni-scheme-init.org][scheme-mode]] :: Scheme is an awesome lisp variant.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'scheme-mode (load "oni-scheme-init"))
#+END_SRC
** Inferior Emacs lisp mode (ielm)
Enable paredit mode.
#+BEGIN_SRC emacs-lisp
(add-hook 'ielm-mode-hook 'paredit-mode)
#+END_SRC
** Mbsync configuration mode
I wrote a simple major-mode for editing my =.mbsyncrc= file. I
might release it as a package, but for now I keep it with the rest
of my configuration.
Since it isn't installed by package.el, I need to specify the
autoload myself.
#+BEGIN_SRC emacs-lisp
(autoload 'mbsync-conf-mode "mbsync-conf-mode"
"Major mode for editing mbsync configuration files."
:interactive)
#+END_SRC
I also need to add it to the =auto-mode-alist= so ~.mbsyncrc~ is
opened with mbsync conf mode.
#+BEGIN_SRC emacs-lisp
(add-to-list 'auto-mode-alist '("\\.mbsyncrc\\'" . mbsync-conf-mode))
#+END_SRC
** Msmtprc mode
I wrote a simple major-mode for editing my =.msmtprc= file. I might
release it as a package, but for now I keep it with the rest of my
configuration.
Since it isn't installed by package.el, I need to specify the
autoload myself.
#+BEGIN_SRC emacs-lisp
(autoload 'msmtprc-mode "msmtprc-mode"
"Major mode for editing msmtp configuration files."
:interactive)
#+END_SRC
I also need to add it to the =auto-mode-alist= so ~.msmtprc~ is
opened with msmtprc mode.
#+BEGIN_SRC emacs-lisp
(add-to-list 'auto-mode-alist '("\\.msmtprc\\'" . msmtprc-mode))
#+END_SRC
** Git commit mode
Enable =electric-quote-local-mode= to easily type nice-looking
quotes while writing commits.
#+BEGIN_SRC emacs-lisp
(add-hook 'git-commit-mode-hook 'electric-quote-local-mode)
#+END_SRC
** Python mode
Enable electric pair mode.
#+BEGIN_SRC emacs-lisp
(add-hook 'python-mode-hook 'electric-pair-local-mode)
#+END_SRC
Enable syntax and style checking with flycheck.
#+BEGIN_SRC emacs-lisp
(add-hook 'python-mode-hook 'flycheck-mode)
#+END_SRC
** Web mode
Web mode is a good general-purpose web template mode. It works well
with many template languages and PHP as well.
Enable a specialized whitespace mode for web mode that shows tabs
at the beginning of a line.
#+BEGIN_SRC emacs-lisp
(add-hook 'web-mode-hook 'oni-whitespace-only-tabs-mode)
#+END_SRC
** Makefile mode
Show tabs in Makefiles. Tabs are required at the beginning of any
non-continuation line in a recipe. I don't use it for indenting,
however.
#+BEGIN_SRC emacs-lisp
(add-hook 'makefile-mode-hook 'oni-whitespace-only-tabs-mode)
#+END_SRC
Enable electric pairing.
#+BEGIN_SRC emacs-lisp
(add-hook 'makefile-mode-hook 'electric-pair-local-mode)
#+END_SRC
** Clojure mode
Install extra font-locking for clojure.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'clojure-mode
(require 'clojure-mode-extra-font-locking))
#+END_SRC
Enable paredit mode.
#+BEGIN_SRC emacs-lisp
(add-hook 'clojure-mode-hook 'paredit-mode)
#+END_SRC
Use the clojure repl as the inferior lisp mode.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'inf-lisp))
(defun oni:clojure-set-inferior-lisp ()
(setq inferior-lisp-program "lein repl"))
#+END_SRC
Add a little more font locking still, and some indentation. This is
included in the Clojure for the Brave and True configuration.
#+BEGIN_SRC emacs-lisp
(add-hook 'clojure-mode-hook 'oni-clojure-add-font-lock)
(add-hook 'clojure-mode-hook 'oni-clojure-add-indent)
#+END_SRC
** Cider mode
Cider is like Slime for Common Lisp. This configuration is copied
from the one provided by Clojure for the Brave and True.
Provides minibuffer documentation for the code you're typing into
the repl.
#+BEGIN_SRC emacs-lisp
(add-hook 'cider-mode-hook 'cider-turn-on-eldoc-mode)
#+END_SRC
Go right to the REPL buffer when it's finished connecting
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'cider
(setq cider-repl-pop-to-buffer-on-connect t))
#+END_SRC
When there's a cider error, show its buffer and switch to it.
#+BEGIN_SRC emacs-lisp
(setq cider-show-error-buffer t
cider-auto-select-error-buffer t)
#+END_SRC
Where to store the cider history.
#+BEGIN_SRC emacs-lisp
(setq cider-repl-history-file
(oni:data-location "cider-history"))
#+END_SRC
Wrap when navigating history.
#+BEGIN_SRC emacs-lisp
(setq cider-repl-wrap-history t)
#+END_SRC
Enable paredit in your REPL.
#+BEGIN_SRC emacs-lisp
(add-hook 'cider-repl-mode-hook 'paredit-mode)
#+END_SRC
* Applications
- [[file:init/dired-init.org][Dired]] :: The Emacs file manager. Very powerful, and I don't use it
enough /yet/.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'dired (load "oni-dired-init"))
#+END_SRC
- [[file:init/magit-init.org][Magit]] :: The Emacs git interface. By now I think I may know magit
better than the git cli.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'magit (load "oni-magit-init"))
#+END_SRC
- [[file:init/ediff-init.org][Ediff]] :: A reall diff application.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'ediff (load "oni-ediff-init"))
#+END_SRC
- [[file:init/oni-gnus-init.org][Gnus]] :: Gnus is one of the most extensible Email programs on the
planet.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'gnus (load "oni-gnus-init"))
#+END_SRC
- [[file:init/oni-org-init.org][Org]] :: Org is the craziest and most flexible organizational
application anyone's ever seen.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'org (load "oni-org-init"))
#+END_SRC
- [[file:init/oni-eshell-init.org][Eshell]] :: The best shell on the planet.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'eshell (load "oni-eshell-init"))
#+END_SRC
- [[file:init/oni-slack-init.org][Slack]] :: A slack client for Emacs.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'slack (load "oni-slack-init"))
#+END_SRC
- [[file:init/oni-circe-init.org][Circe]] :: A very nice and clean IRC client for Emacs.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'circe (load "oni-circe-init"))
#+END_SRC
** Linewise user-interface
This is the library used by Circe and Slack to display messages.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'lui))
#+END_SRC
Put the time stamp in lui buffers in the right margin. This gives
the text some extra room.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'lui
(setq lui-time-stamp-position 'right-margin))
#+END_SRC
Remove the "[]" from the time stamp, it's not really necessary.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'lui
(setq lui-time-stamp-format "%H:%M"))
#+END_SRC
Give the right margin just enough room to show the time-stamps, no
more, no less.
#+BEGIN_SRC emacs-lisp
(defun oni:set-circe-margin-width ()
(setq right-margin-width 5))
(add-hook 'lui-mode-hook #'oni:set-circe-margin-width)
#+END_SRC
Fix the wrap prefix so that text at the prompt is aligned properly.
#+BEGIN_SRC emacs-lisp
(defun oni:set-lui-prompt-wrap-prefix ()
(setq wrap-prefix " "))
(add-hook 'lui-mode-hook #'oni:set-lui-prompt-wrap-prefix)
#+END_SRC
Enable visual line mode in lui buffers so my text doesn't go
off-screen.
#+BEGIN_SRC emacs-lisp
(add-hook 'lui-mode-hook 'visual-line-mode)
#+END_SRC
Turn off filling in lui buffers. I use visual-line mode instead.
#+BEGIN_SRC emacs-lisp
(setq lui-fill-type nil)
#+END_SRC
** Jabber
I like using XMPP to talk to people, jabber.el is very good at
this.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'jabber))
#+END_SRC
Add my account.
#+BEGIN_SRC emacs-lisp
(setq jabber-account-list
`((,(concat "ryuslash@dukgo.com/" (system-name)))
(:connection-type . starttls)))
#+END_SRC
Store any persistent data in the data directory.
#+BEGIN_SRC emacs-lisp
(setq jabber-avatar-cache-directory (oni:data-location "jabber/avatars/")
jabber-history-dir (oni:data-location "jabber/hist/"))
#+END_SRC
Change the default prompts.
#+BEGIN_SRC emacs-lisp
(setq jabber-chat-buffer-format "+%n"
jabber-chat-foreign-prompt-format "%t %u "
jabber-chat-local-prompt-format "%t %u "
jabber-chat-delayed-time-format "%H:%M"
jabber-groupchat-buffer-format "++%n"
jabber-groupchat-prompt-format "%t %u ")
#+END_SRC
Don't show avatars, publish or retrieve avatars.
#+BEGIN_SRC emacs-lisp
(setq jabber-chat-buffer-show-avatar nil
jabber-vcard-avatars-publish nil
jabber-vcard-avatars-retrieve nil)
#+END_SRC
Don't fill long lines in jabber chat buffers, but use visual line
mode.
#+BEGIN_SRC emacs-lisp
(setq jabber-chat-fill-long-lines nil)
(add-hook 'jabber-chat-mode-hook 'visual-line-mode)
#+END_SRC
Don't send notifications about chat states.
#+BEGIN_SRC emacs-lisp
(setq jabber-chatstates-confirm nil)
#+END_SRC
Colorize text in multi-user chats.
#+BEGIN_SRC emacs-lisp
(setq jabber-muc-colorize-local t
jabber-muc-colorize-foreign t)
#+END_SRC
Enable recording history.
#+BEGIN_SRC emacs-lisp
(setq jabber-history-enabled t
jabber-use-global-history nil)
#+END_SRC
Clean up the default view of the roster buffer.
#+BEGIN_SRC emacs-lisp
(setq jabber-roster-show-bindings nil
jabber-show-offline-contacts nil)
(add-hook 'jabber-roster-mode-hook 'oni-jabber-set-roster-mode-line)
#+END_SRC
Use libnotify to send jabber notifications.
#+BEGIN_SRC emacs-lisp
(add-hook 'jabber-alert-message-hooks 'jabber-message-libnotify)
(add-hook 'jabber-alert-muc-hooks 'jabber-muc-libnotify)
#+END_SRC
Don't echo presence changes in the mode line, show them in the
relevant buffer instead.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'jabber-alert
(remove-hook 'jabber-alert-presence-hooks 'jabber-presence-echo))
(add-hook 'jabber-alert-presence-hooks 'oni-jabber-show-status-in-buffer)
#+END_SRC
Set the default directory to my home directory for jabber chat
buffers.
#+BEGIN_SRC emacs-lisp
(defun oni:set-default-directory ()
(setq default-directory "~/"))
(add-hook 'jabber-chat-mode-hook 'oni:set-default-directory)
#+END_SRC
* Custom
Put the customize settings in a different file so that Emacs doesn't
have to modify this file whenever something changes through
customize. I put this into my init file last so any settings made in
there *can* overwrite the ones in the rest of the file, not that I
usually like to do that.
#+BEGIN_SRC emacs-lisp
(setq custom-file (concat user-emacs-directory "custom.el"))
(load custom-file)
#+END_SRC