dotfiles/emacs/.emacs.d/init.org
2016-10-07 17:20:44 +02:00

1340 lines
37 KiB
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
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
(silently "Refresh packages"
(package-refresh-contents)))
#+END_SRC
This macro is inspired by use-package, but I want to maintain some
control of the syntax I use to configure my settings.
#+BEGIN_SRC emacs-lisp
(defmacro ensure-library (library &rest args)
"Make sure LIBRARY is installed.
ARGS should be a plist which may contain one of the following options:
- :package
Specify which package should actually be installed to ensure
the library named in LIBRARY exists.
- :path
Specify a path to add to the load path to be able to load this
package."
(declare (indent 1))
(let ((library-symbol (cl-gensym))
(package-symbol (cl-gensym))
(path-symbol (cl-gensym))
(package (or (plist-get args :package) library))
(path (plist-get args :path)))
`(progn
(eval-and-compile
(let ((,path-symbol ,path))
(if ,path-symbol
(add-to-list 'load-path
(if (file-name-absolute-p ,path-symbol)
,path-symbol
(concat user-emacs-directory ,path-symbol))))))
(eval-when-compile
(let ((,library-symbol ',library)
(,package-symbol ',package))
(unless (require ,library-symbol nil :noerror)
(package-install ,package-symbol)
(require ,library-symbol)))))))
#+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 noticed that I refer to the combination of
=user-emacs-directory= and "data/" a lot, so I wrote this function
to make referencing it cleaner. Also useful if I ever want to move
my data directory.
#+BEGIN_SRC emacs-lisp
(defun oni:data-location (file-name)
"Return the location of FILE-NAME within my data directory.
This is currently the data directory under the
`user-emacs-directory'."
(concat user-emacs-directory "data/" file-name))
#+END_SRC
I also wrote a test for it.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'ert
(ert-deftest oni:data-location ()
"Test that `oni:data-location' returns the correct locations."
(should (string= "~/.emacs.d/data/backup-files/"
(oni:data-location "backup-files/")))
(should (string= "~/.emacs.d/data/auto-save-files/"
(oni:data-location "auto-save-files/")))
(should (string= "~/.emacs.d/data/auto-save-list/.saves-"
(oni:data-location "auto-save-list/.saves-")))))
#+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
* 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
(ensure-library destroy-trailing-whitespace
:path "vendor-lisp/destroy-trailing-whitespace")
(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
(ensure-library yoshi-theme
:path "vendor-lisp/yoshi-theme")
(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
(ensure-library diminish)
(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.
#+BEGIN_SRC emacs-lisp
(ensure-library ivy)
#+END_SRC
Also install the =flx= package to allow ivy to use fuzzy matching.
#+BEGIN_SRC emacs-lisp
(ensure-library flx)
#+END_SRC
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.
#+BEGIN_SRC emacs-lisp
(ensure-library counsel)
#+END_SRC
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 "\\`\\.")
#+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
* Minor modes
** 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.
#+BEGIN_SRC emacs-lisp
(ensure-library paredit)
#+END_SRC
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.
#+BEGIN_SRC emacs-lisp
(ensure-library flycheck)
#+END_SRC
When developing packages with Cask, some special care needs to be
taken to ensure the checkers work correctly.
#+BEGIN_SRC emacs-lisp
(ensure-library flycheck-cask)
(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
(ensure-library flycheck-pos-tip)
(with-eval-after-load 'flycheck
(require 'flycheck-pos-tip)
(flycheck-pos-tip-mode))
#+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
(ensure-library diff-hl)
(require 'diff-hl)
(global-diff-hl-mode)
#+END_SRC
** Hydra
Hydra is an interesting way of managing keybindings, I want to
experiment.
#+BEGIN_SRC emacs-lisp
(ensure-library hydra)
#+END_SRC
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.
#+BEGIN_SRC emacs-lisp
(ensure-library projectile)
(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"
(format " P[%s]" (projectile-project-name))))))
#+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
* Major modes
** Emacs lisp mode
Enable paredit mode.
#+BEGIN_SRC emacs-lisp
(add-hook 'emacs-lisp-mode-hook 'paredit-mode)
#+END_SRC
** Scheme mode
Enable paredit mode.
#+BEGIN_SRC emacs-lisp
(add-hook 'scheme-mode-hook 'paredit-mode)
#+END_SRC
Add scsh to the list of known interpreters for scheme mode. This
way shell-scripts that don't have a file extension but specify scsh
as the interpreter are opened in scheme mode.
#+BEGIN_SRC emacs-lisp
(add-to-list 'interpreter-mode-alist '("scsh" . scheme-mode))
#+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.
#+BEGIN_SRC emacs-lisp
(ensure-library mbsync-conf-mode
:path "vendor-lisp/mbsync-conf-mode")
#+END_SRC
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.
#+BEGIN_SRC emacs-lisp
(ensure-library msmtprc-mode
:path "vendor-lisp/msmtprc-mode")
#+END_SRC
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.
#+BEGIN_SRC emacs-lisp
(ensure-library web-mode)
#+END_SRC
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
** CSS mode
Enable electric indent mode.
#+BEGIN_SRC emacs-lisp
(add-hook 'css-mode-hook 'electric-indent-local-mode)
#+END_SRC
** Clojure mode
#+BEGIN_SRC emacs-lisp
(ensure-library clojure-mode)
#+END_SRC
Install extra font-locking for clojure.
#+BEGIN_SRC emacs-lisp
(ensure-library clojure-mode-extra-font-locking)
(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.
#+BEGIN_SRC emacs-lisp
(ensure-library cider)
#+END_SRC
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
** Magit
Magit is a very nice interface to Git for Emacs. It allows you to
do just about anything with Git without leaving the comfort of your
Emacs session.
#+BEGIN_SRC emacs-lisp
(ensure-library magit)
#+END_SRC
Show refined diffs in magit. This makes it much easier to see
/what/ has changed on a line.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'magit))
(with-eval-after-load 'magit
(setq magit-diff-refine-hunk 'all))
#+END_SRC
** Gnus
Gnus is one of the most extensible Email programs on the
planet. And it's not even made for email but NNTP.
Store all Gnus-related data in my data directory.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'gnus))
(with-eval-after-load 'gnus
(setq gnus-directory (oni:data-location "News")
gnus-article-save-directory gnus-directory
gnus-cache-directory gnus-directory
gnus-kill-files-directory gnus-directory))
#+END_SRC
Store all Mail source-related data in my data directory.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'mail-source))
(with-eval-after-load 'mail-source
(setq mail-source-directory (oni:data-location "Mail")))
#+END_SRC
Store all message-related data in the same place as the Mail source
data.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'message))
(with-eval-after-load 'message
(setq message-directory (oni:data-location "Mail")))
#+END_SRC
Store all nnfolder-related data in the same place as the Mail
source data.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'nnfolder))
(with-eval-after-load 'nnfolder
(setq nnfolder-directory (oni:data-location "Mail")))
#+END_SRC
Use msmtp to send mail.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'sendmail))
(with-eval-after-load 'sendmail
(setq send-mail-function 'sendmail-send-it)
(setq sendmail-program "/usr/bin/msmtp"))
#+END_SRC
Tell Gnus I'm not a novice anymore. One of the features of Gnus I
use a lot is deleting messages and as long as Gnus thinks I'm a
novice it will ask me if I'm sure every single time.
#+BEGIN_SRC emacs-lisp
(setq gnus-novice-user nil)
#+END_SRC
Add a keybinding to the Gnus summary mode to easily delete
messages.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'gnus
(define-key gnus-summary-mode-map (kbd "M-d") 'oni-gnus-delete-forward))
#+END_SRC
*** ryuslash.org
Set my main email address as the primary select method for Gnus.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'gnus
(setq gnus-select-method
'(nnmaildir "ryuslash" (directory "~/documents/mail/ryuslash/"))))
#+END_SRC
When sending mail from the ryuslash inbox, use the ryuslash msmtp
account.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'gnus-msg))
(with-eval-after-load 'gnus-msg
(add-to-list 'gnus-posting-styles
'(".*"
(address "tom@ryuslash.org")
(eval (setq message-sendmail-extra-arguments
'("-a" "ryuslash"))))))
#+END_SRC
*** picturefix
Add my work email account as a secondary select method.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'gnus
(add-to-list 'gnus-secondary-select-methods
'(nnmaildir "picturefix"
(directory "~/documents/mail/picturefix/"))))
#+END_SRC
When sending mail from the picturefix account, use the picturefix
msmtp account and set the proper name and email address.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'gnus-msg
(add-to-list 'gnus-posting-styles
'("picturefix:"
(name "Tom Willemsen")
(address "tom@picturefix.nl")
(eval (setq message-sendmail-extra-arguments
'("-a" "picturefix"))))))
#+END_SRC
*** gmail
Add my other personal email as a secondary select method.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'gnus
(add-to-list 'gnus-secondary-select-methods
'(nnmaildir "gmail"
(directory "~/documents/mail/gmail/"))))
#+END_SRC
When sending mail from the gmail account, use the gmail msmtp
accound and set the proper email address.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'gnus-msg
(add-to-list 'gnus-posting-styles
'("gmail:"
(name "Tom Willemse")
(address "ryuslash@gmail.com")
(eval (setq message-sendmail-extra-arguments
'("-a" "gmail"))))))
#+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
** Circe
I switched to Circe from ERC because I couldn't make the
customizations I wanted to, Circe seems much better at this.
#+BEGIN_SRC emacs-lisp
(ensure-library circe)
#+END_SRC
Make sure that Emacs knows these function exist when the file is
being compiled.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'oni-circe))
#+END_SRC
I spend most of my time on IRC on Freenode.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'circe))
(with-eval-after-load 'circe
(add-to-list 'circe-network-options
`("Freenode"
:nick "ryuslash"
:channels ("#emacs"
"#mowedline"
"#ninthfloor"
"#dispass"
"#linuxvoice"
"#conkeror")
:nickserv-password
,(oni-circe-get-password-for "irc.freenode.net"))))
#+END_SRC
Sometimes I watch some Twitch streams as well.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'circe
(add-to-list 'circe-network-options
`("Twitch"
:use-tls nil
:nick "ryuslash"
:host "irc.twitch.tv"
:pass ,(oni-circe-get-password-for "irc.twitch.tv")
:port 6667)))
#+END_SRC
Enable coloring of nicks.
#+BEGIN_SRC emacs-lisp
(with-eval-after-load 'circe
(require 'circe-color-nicks)
(enable-circe-color-nicks))
#+END_SRC
Align all nicks.
#+BEGIN_SRC emacs-lisp
(ensure-library sermon
:path "vendor-lisp/sermon")
(with-eval-after-load 'circe
(require 'sermon)
(enable-sermon))
#+END_SRC
** Org
Tell org-mode to fontify code blocks in their specified languages.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'org))
(with-eval-after-load 'org
(setq org-src-fontify-natively t))
#+END_SRC
Enable automatic text filling for org-mode.
#+BEGIN_SRC emacs-lisp
(add-hook 'org-mode-hook 'auto-fill-mode)
#+END_SRC
** Jabber
I like using XMPP to talk to people, jabber.el is very good at
this.
#+BEGIN_SRC emacs-lisp
(ensure-library jabber)
(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
* 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