path: root/emacs/loader.org

#+TITLE: GNU Emacs Configuration
#+DATE: <2017-08-11 Fri>
#+AUTHOR: Yann Herklotz
#+EMAIL: ymherklotz@gmail.com

* Introduction
This is my GNU Emacs Configuration that is mostly focused on C++ development,
but also has support for Python, F#, Haskell and Clojure.

#+BEGIN_SRC emacs-lisp
  (setq user-full-name "Yann Herklotz")
  (setq user-mail-address "ymherklotz@gmail.com")
#+END_SRC

* Interface
** Setup
Defining all the package repositories that are going to be used.

- ~gnu~ :: The default package repository for emacs
- ~melpa~ :: Contains a lot of additional packages for emacs that are made by
             the community.
- ~melpa-stable~ :: The stable melpa repository that only contains that full
                    versions for packages. This repository will be used for
                    packages that maybe get updated often, so that they do not
                    break the config.
- ~org~ :: org package repository that contains many packages to extend org-mode.

#+BEGIN_SRC emacs-lisp
  (require 'package)

  (defvar gnu '("gnu" . "https://elpa.gnu.org/packages/"))
  (defvar melpa '("melpa" . "https://melpa.org/packages/"))
  (defvar melpa-stable '("melpa-stable" . "https://stable.melpa.org/packages/"))
  (defvar org-elpa '("org" . "http://orgmode.org/elpa/"))
#+END_SRC

These packages are then added to the list of package archives.

#+BEGIN_SRC emacs-lisp
  (setq package-archives nil)
  (add-to-list 'package-archives melpa-stable t)
  (add-to-list 'package-archives melpa t)
  (add-to-list 'package-archives gnu t)
  (add-to-list 'package-archives org-elpa t)
#+END_SRC

Initialise the packages and if the directories don't exist, create them.

#+BEGIN_SRC emacs-lisp
  (setq package-enable-at-startup nil)
  (package-initialize)

  (unless (and (file-exists-p (concat init-dir "elpa/archives/gnu"))
               (file-exists-p (concat init-dir "elpa/archives/melpa"))
               (file-exists-p (concat init-dir "elpa/archives/melpa-stable"))
               (file-exists-p (concat init-dir "elpa/archives/org")))
    (package-refresh-contents))
#+END_SRC

Use ~use-package~ to manage other packages, and improve load times.

#+BEGIN_SRC emacs-lisp
  (unless (package-installed-p 'use-package)
    (package-refresh-contents)
    (package-install 'use-package))

  (require 'use-package)

  (setq use-package-always-ensure t)
#+END_SRC

Server so that a client can connect to it. This makes using emacs much smoother,
as frames can be opened using the emacsclient.

#+BEGIN_SRC emacs-lisp
  (setq server-socket-file "/tmp/emacs1000/server")
  (setq server-socket-dir "/tmp/emacs1000")
  (unless (file-exists-p server-socket-file)
  (server-start))
#+END_SRC

Threshold for faster startup.

#+BEGIN_SRC emacs-lisp
  (setq gc-cons-threshold 500000000)
#+END_SRC

Move the backup files into the temporaty directory so that they are out of the
way.

#+BEGIN_SRC emacs-lisp
  (setq backup-directory-alist
        `((".*" . ,temporary-file-directory)))
  (setq auto-save-file-name-transforms
        `((".*" ,temporary-file-directory t)))
#+END_SRC

** Editor
Editor specific options such as adding line numbers and showing.

Disable UI that starts when starting emacs and also set the y or n instead of
yes or no.

#+BEGIN_SRC emacs-lisp
  (setq inhibit-startup-message t)
  (setq vc-follow-symlinks t)
  (tool-bar-mode -1)
  (menu-bar-mode -1)
  (fset 'yes-or-no-p 'y-or-n-p)
#+END_SRC

Make it easier to refresh the buffer by setting it to ~<f5>~.

#+BEGIN_SRC emacs-lisp
  (show-paren-mode 'expression)
  (global-set-key (kbd "<f5>") 'revert-buffer)
#+END_SRC

Revert the buffer automatically when a file changes on disc. This is useful when
monitoring a file such as a log file. It will also do this silently.

#+BEGIN_SRC emacs-lisp
  (global-auto-revert-mode 1)
  (setq auto-revert-verbose nil)
#+END_SRC

Disable tabs, I want to move towards only using spaces everywhere as that is my
preferred style. This is just personal preference though.

#+BEGIN_SRC emacs-lisp
  (setq-default indent-tabs-mode nil)
  (setq-default tab-width 4)
  (setq-default python-indent-offset 4)
  (setq-default fill-column 80)
#+END_SRC


#+BEGIN_SRC emacs-lisp
  (setq line-number-display-limit 2000000)
#+END_SRC

** Font
Set the font to monaco. It has to use the xft syntax, otherwise it doesn't
render properly.  The font is also set twice, so that it is properly set when
using emacs normally or using the emacsclient.

#+BEGIN_SRC emacs-lisp
  (set-default-font "Monaco-11") ;;; set default font
  (setq default-frame-alist '((font . "Monaco-11"))) ;;; set default font for emacs --daemon and emacsclient
#+END_SRC

* Social
** Mail
~mu4e~ is automatically in the load path when installed through a package
manager.

For archlinux, the command to install mu4e is:

#+BEGIN_SRC shell
  pacman -S mu
#+END_SRC

which comes with mu.

#+BEGIN_SRC emacs-lisp
  (require 'mu4e)
#+END_SRC

Set the email client to be mu4e in emacs, and set the correct mail directory. As
I am downloading all the mailboxes, there will be duplicates, which can be
ignored in searches by setting ~mu4e-headers-skip-duplicates~.

Also delete messages when they are sent, and don't copy them over to the sent
directory, as Gmail will do that for us.

To download the mail using imap, I use ~mbsync~, which downloads all mail with
the ~-a~ flag.

Finally, remove buffers when an email has been sent.

#+BEGIN_SRC emacs-lisp
  (setq mail-user-agent 'mu4e-user-agent)
  (setq mu4e-maildir "~/.mail")
  (setq mu4e-headers-skip-duplicates t)
  (setq mu4e-sent-messages-behavior 'delete)
  (setq mu4e-get-mail-command "mbsync -a")
  (setq message-kill-buffer-on-exit t)
  (setq mu4e-completing-read-function 'completing-read)
  (setq mu4e-context-policy 'pick-first)
  (setq mu4e-confirm-quit nil)

  ;;; Mail directory shortcuts
  (setq mu4e-maildir-shortcuts
        '(("/gmail/Inbox" . ?g)
          ("/imperial/Inbox" . ?i)))
#+END_SRC

#+BEGIN_SRC emacs-lisp
  (setq mu4e-contexts
        `( ,(make-mu4e-context
             :name "Gmail"
             :match-func (lambda (msg)
                           (when msg (mu4e-message-contact-field-matches msg :to "ymherklotz@gmail.com"))) 
             :vars '((user-mail-address . "ymherklotz@gmail.com")
                     (user-full-name . "Yann Herklotz")
                     (mu4e-sent-folder . "/gmail/[Gmail]/Sent Mail")
                     (mu4e-drafts-folder . "/gmail/[Gmail]/Drafts")
                     (mu4e-trash-folder . "/gmail/[Gmail]/Trash")
                     (mu4e-refile-folder . "/gmail/[Gmail]/All Mail")
                     (smtpmail-smt-user . "ymherklotz@gmail.com")
                     (smtpmail-local-domain . "gmail.com")
                     (smtpmail-default-smtp-server . "smtp.gmail.com")
                     (smtpmail-smtp-server . "smtp.gmail.com")
                     (smtpmail-smtp-service . 587)))
           ,(make-mu4e-context
             :name "Imperial"
             :match-func (lambda (msg)
                           (when msg (mu4e-message-contact-field-matches msg :to "ymh15@ic.ac.uk"))) 
             :vars '((user-mail-address . "ymh15@ic.ac.uk")
                     (user-full-name . "Yann Herklotz")
                     (mu4e-sent-folder . "/imperial/Sent")
                     (mu4e-drafts-folder . "/imperial/Drafts")
                     (mu4e-trash-folder . "/imperial/Trash")
                     (mu4e-refile-folder . "/imperial/Archive")
                     (smtpmail-smt-user . "ymh15@ic.ac.uk")
                     (smtpmail-local-domain . "cc.ic.ac.uk")
                     (smtpmail-default-smtp-server . "smtp.cc.ic.ac.uk")
                     (smtpmail-smtp-server . "smtp.cc.ic.ac.uk")
                     (smtpmail-smtp-service . 587)))))
#+END_SRC

Setting up ~smtp~ to send messages using gmail.

#+BEGIN_SRC emacs-lisp
  (require 'smtpmail)
  (setq message-send-mail-function 'smtpmail-send-it
        starttls-use-gnutls t)
#+END_SRC

* Utility
** Discover-ability
#+BEGIN_SRC emacs-lisp
  (use-package which-key
    :diminish which-key-mode
    :config
    (which-key-mode))
#+END_SRC

** Navigation
*** Ace Windows
#+BEGIN_SRC emacs-lisp
  (use-package ace-window
    :bind (("C-x o" . ace-window)))
#+END_SRC

*** Avy
#+BEGIN_SRC emacs-lisp
  (use-package avy
    :config
    (global-set-key (kbd "C-:") 'avy-goto-char)
    (global-set-key (kbd "C-'") 'avy-goto-char-2))
#+END_SRC

*** Helm
#+BEGIN_SRC emacs-lisp
  (use-package helm
    :config 
    (require 'helm-config))

  (use-package helm-mode
    :ensure helm
    :config
    (helm-mode 1))

  (use-package helm-utils
    :ensure helm
    ;; Popup buffer-name or filename in grep/moccur/imenu-all etc...
    :config (helm-popup-tip-mode 1))

  (use-package helm-sys
    :ensure helm
    :commands (helm-top)
    :config (helm-top-poll-mode 1))

  (global-set-key (kbd "M-x")                          'undefined)
  (global-set-key (kbd "M-x")                          'helm-M-x)
  (global-set-key (kbd "M-y")                          'helm-show-kill-ring)
  (global-set-key (kbd "C-x C-f")                      'helm-find-files)
  (global-set-key (kbd "C-c <SPC>")                    'helm-all-mark-rings)
  (global-set-key (kbd "C-x r b")                      'helm-filtered-bookmarks)
  (global-set-key (kbd "C-:")                          'helm-eval-expression-with-eldoc)
  (global-set-key (kbd "C-,")                          'helm-calcul-expression)
  (global-set-key (kbd "C-h d")                        'helm-info-at-point)
  (global-set-key (kbd "C-h i")                        'helm-info)
  (global-set-key (kbd "C-x C-d")                      'helm-browse-project)
  (global-set-key (kbd "C-h C-f")                      'helm-apropos)
  (global-set-key (kbd "C-h a")                        'helm-apropos)
  (global-set-key (kbd "C-h C-d")                      'helm-debug-open-last-log)
  (global-set-key (kbd "C-c i")                        'helm-imenu-in-all-buffers)
  (global-set-key (kbd "C-s")                          'helm-occur)
  (define-key global-map [remap jump-to-register]      'helm-register)
  (define-key global-map [remap list-buffers]          'helm-mini)
  (define-key global-map [remap dabbrev-expand]        'helm-dabbrev)
  (define-key global-map [remap find-tag]              'helm-etags-select)
  (define-key global-map [remap xref-find-definitions] 'helm-etags-select)
  (define-key global-map (kbd "M-g a")                 'helm-do-grep-ag)
  (define-key global-map (kbd "M-g g")                 'helm-grep-do-git-grep)
  (define-key global-map (kbd "M-g i")                 'helm-gid)
  (define-key global-map (kbd "C-x r p")               'helm-projects-history)
  (define-key global-map (kbd "C-x r c") 'helm-addressbook-bookmarks)
#+END_SRC

** Visual
*** All the icons
#+BEGIN_SRC emacs-lisp
  (use-package all-the-icons)
#+END_SRC

** Editing
*** Hungry Delete
#+BEGIN_SRC emacs-lisp
  (use-package hungry-delete
    :config
    (global-hungry-delete-mode))
#+END_SRC

*** Multiple Cursors
#+BEGIN_SRC emacs-lisp
  (use-package multiple-cursors
    :bind (("C->" . mc/mark-next-like-this)
           ("C-<" . mc/mark-previous-like-this)
           ("C-c C-<" . mc/mark-all-like-this)))
#+END_SRC

*** SmartParens
#+BEGIN_SRC emacs-lisp
  (use-package smartparens
    :bind (("M-[" . sp-backward-unwrap-sexp)
           ("M-]" . sp-unwrap-sexp)
           ("C-M-f" . sp-forward-sexp)
           ("C-M-b" . sp-backward-sexp)
           ("C-M-d" . sp-down-sexp)
           ("C-M-a" . sp-backward-down-sexp)
           ("C-M-e" . sp-up-sexp)
           ("C-M-u" . sp-backward-up-sexp)
           ("C-M-t" . sp-transpose-sexp)
           ("C-M-n" . sp-next-sexp)
           ("C-M-p" . sp-previous-sexp)
           ("C-M-k" . sp-kill-sexp)
           ("C-M-w" . sp-copy-sexp)
           ("C-<right>" . sp-forward-slurp-sexp)
           ("C-<left>" . sp-forward-barf-sexp)
           ("C-M-<left>" . sp-backward-slurp-sexp)
           ("C-M-<right>" . sp-backward-barf-sexp)
           ("M-D" . sp-splice-sexp)
           ("C-]" . sp-select-next-thing-exchange)
           ("C-<left_bracket>" . sp-select-previous-thing)
           ("C-M-]" . sp-select-next-thing)
           ("M-F" . sp-forward-symbol)
           ("M-B" . sp-backward-symbol))
    :init
    (require 'smartparens-config)
    (show-smartparens-global-mode +1)
    (smartparens-global-mode 1)

    (add-hook 'minibuffer-setup-hook 'turn-on-smartparens-strict-mode)

    (sp-with-modes '(c-mode c++-mode)
      (sp-local-pair "{" nil :post-handlers '(("||\n[i]" "RET")))
      (sp-local-pair "/*" "*/" :post-handlers '((" | " "SPC")
                                                ("* ||\n[i]" "RET")))))
#+END_SRC
*** Undo Tree
#+BEGIN_SRC emacs-lisp
  (use-package undo-tree

    :diminish undo-tree-mode
    :config
    (global-undo-tree-mode))
#+END_SRC

*** Whitespace
#+BEGIN_SRC emacs-lisp
  (use-package whitespace
    :bind (("C-x w" . whitespace-mode)))
#+END_SRC

** Misc
Reduce the ringing in emacs.

#+BEGIN_SRC emacs-lisp
  ;; http://stackoverflow.com/questions/11679700/emacs-disable-beep-when-trying-to-move-beyond-the-end-of-the-document
  (defun my-bell-function ())

  (setq ring-bell-function 'my-bell-function)
  (setq visible-bell nil)
#+END_SRC

* Writing
** Spellcheck in emacs
#+BEGIN_SRC emacs-lisp
  (defun spell-buffer-german ()
    (interactive)
    (ispell-change-dictionary "de_DE")
    (flyspell-buffer))

  (defun spell-buffer-english ()
    (interactive)
    (ispell-change-dictionary "en_US")
    (flyspell-buffer))

  (use-package ispell
    :config
    (when (executable-find "hunspell")
      (setq-default ispell-program-name "hunspell")
      (setq ispell-really-hunspell t))

    ;; (setq ispell-program-name "aspell"
    ;;       ispell-extra-args '("--sug-mode=ultra"))
    :bind (("C-c N" . spell-buffer-dutch)
           ("C-c n" . spell-buffer-english)))
#+END_SRC

** Word Wrapping
Wrap words when in text mode.

#+BEGIN_SRC emacs-lisp
  (dolist (hook '(text-mode-hook))
    (add-hook hook (lambda ()
                     (flyspell-mode 1)
                     (visual-line-mode 1))))
#+END_SRC

** Markdown
Markdown is the standard for writing documentation. This snippet loads GFM
(Github Flavoured Markdown) style.

#+BEGIN_SRC emacs-lisp
  (use-package markdown-mode
    :commands (markdown-mode gfm-mode)
    :mode (("README\\.md\\'" . gfm-mode)
           ("\\.md\\'" . markdown-mode)
           ("\\.markdown\\'" . markdown-mode))
    :init (setq markdown-command "multimarkdown"))
#+END_SRC

** Org

Agenda setup for org mode, pointing to the write files.

#+BEGIN_SRC emacs-lisp
  (setq org-agenda-files (quote ("~/Dropbox/Org")))
  (setq org-log-into-drawer t)
  (setq org-log-done "note")
  (setq org-hide-leading-stars t)
  (setq org-confirm-babel-evaluate nil)
#+END_SRC

Set global keys for org mode to access agenda.

#+BEGIN_SRC emacs-lisp
  (global-set-key "\C-cl" 'org-store-link)
  (global-set-key "\C-ca" 'org-agenda)
  (global-set-key "\C-cc" 'org-capture)
  (global-set-key "\C-cb" 'org-iswitchb)
#+END_SRC

Set up ob for executing code blocks

#+BEGIN_SRC emacs-lisp
  (require 'ob)
  ;; Babel settings, enabling languages
  (org-babel-do-load-languages
   'org-babel-load-languages
   '(
     (emacs-lisp . t)
     (js . t)
     (java . t)
     (haskell . t)
     (python . t)
     (ruby . t)
     (sh . t)
     (org . t)
     (matlab . t)
     (ditaa . t)
     (clojure . t)
     ))
  (setq org-image-actual-width nil)
#+END_SRC

#+BEGIN_SRC emacs-lisp
  (setq org-format-latex-options (plist-put org-format-latex-options :scale 1.5))
#+END_SRC

* Programming
My emacs configuration is mostly focused on programming, therefore there is a
lot of different language support.

** Version Control and Project Management

*** Magit

#+BEGIN_SRC emacs-lisp
  (use-package magit    
    :bind (("C-x g" . magit-status)))
#+END_SRC

*** Projectile

#+BEGIN_SRC emacs-lisp
  (use-package projectile    
    :diminish projectile-mode
    :config
    (projectile-global-mode 1)
    (setq projectile-indexing-method 'alien)
    (setq projectile-enable-caching t))

  (use-package helm-projectile)
#+END_SRC

** Language Support

*** C++

Setting up CC mode with a hook that uses my settings.

#+BEGIN_SRC emacs-lisp
  (use-package cc-mode
    :config
    (add-to-list 'auto-mode-alist '("\\.h\\'" . c++-mode))
    (setq c-default-style "linux"
          c-basic-offset 4
          c-indent-level 4)
    (defun my-c++-mode-hook ()
      (c-set-offset 'inline-open 0)
      (c-set-offset 'inline-close 0)
      (c-set-offset 'innamespace 0)
      (c-set-offset 'arglist-cont-nonempty 8)
      (setq indent-tabs-mode nil))
    (add-hook 'c-mode-hook 'my-c++-mode-hook)
    (add-hook 'c++-mode-hook 'my-c++-mode-hook)

    (define-key c-mode-map (kbd "C-c C-c") 'comment-or-uncomment-region))
#+END_SRC

Adding C headers to company backend for completion.

#+BEGIN_SRC emacs-lisp
  (use-package irony

    :config
    (add-hook 'c++-mode-hook 'irony-mode)
    (add-hook 'c-mode-hook 'irony-mode)
    (add-hook 'objc-mode-hook 'irony-mode)

    (defun my-irony-mode-hook ()
      (define-key irony-mode-map [remap completion-at-point]
        'irony-completion-at-point-async)
      (define-key irony-mode-map [remap complete-symbol]
        'irony-completion-at-point-async))
    (add-hook 'irony-mode-hook 'my-irony-mode-hook)
    (add-hook 'irony-mode-hook 'irony-cdb-autosetup-compile-options))

  (use-package company-irony)

  (use-package flycheck-irony
    :config
    (add-hook 'c++-mode-hook #'flycheck-irony-setup))

  (use-package company-c-headers
    :config
    (add-to-list 'company-backends 'company-c-headers)
    (add-to-list 'company-backends 'company-irony)

    (add-hook 'irony-mode-hook 'company-irony-setup-begin-commands))
#+END_SRC

Using clang format to format the region that is currently being selected (need
to install clang format script).

#+BEGIN_SRC emacs-lisp
  (use-package clang-format
    :config
    (global-set-key (kbd "C-c i") 'clang-format-region)
    (global-set-key (kbd "C-c u") 'clang-format-buffer))
#+END_SRC

#+BEGIN_SRC emacs-lisp
  (use-package rtags
    :pin melpa-stable
    :config
    (rtags-enable-standard-keybindings))
#+END_SRC

** Clojure
Using Cider for clojure environment.

#+BEGIN_SRC emacs-lisp
  (use-package cider
    :pin melpa-stable
    :config
    (setq cider-repl-display-help-banner nil))
#+END_SRC

Adding hook to clojure mode to enable strict parentheses mode.

#+BEGIN_SRC emacs-lisp
  (use-package clojure-mode
    :ensure nil
    :init
    (add-hook 'clojure-mode-hook 'turn-on-smartparens-strict-mode))
#+END_SRC

*** CMake
#+BEGIN_SRC emacs-lisp
  (use-package cmake-mode
    :config
    (setq auto-mode-alist
          (append
           '(("CMakeLists\\.txt\\'" . cmake-mode))
           '(("\\.cmake\\'" . cmake-mode))
           auto-mode-alist))
    (autoload 'cmake-mode "~/CMake/Auxiliary/cmake-mode.el" t))
#+END_SRC

*** Emacs Lisp
Adding strict parentheses to emacs lisp.

#+BEGIN_SRC emacs-lisp
  (add-hook 'emacs-lisp-mode-hook 'turn-on-smartparens-strict-mode)
#+END_SRC

*** F#
F# mode for uni work.

#+BEGIN_SRC emacs-lisp
  (use-package fsharp-mode)
#+END_SRC

*** Haskell

Haskell mode with company mode completion.

#+BEGIN_SRC emacs-lisp
  (use-package haskell-mode)
#+END_SRC

*** Python
Elpy package for python, which provides an IDE type environment for python.

#+BEGIN_SRC emacs-lisp
  (use-package elpy
    :config
    (elpy-enable)
    (setq py-python-command "python3")
    (setq python-shell-interpreter "python3"))

  (with-eval-after-load 'python
    (defun python-shell-completion-native-try ()
      "Return non-nil if can trigger native completion."
      (let ((python-shell-completion-native-enable t)
            (python-shell-completion-native-output-timeout
             python-shell-completion-native-try-output-timeout))
        (python-shell-completion-native-get-completions
         (get-buffer-process (current-buffer))
         nil "_"))))
#+END_SRC

*** JSON
JSON files should be opened in js-mode.

#+BEGIN_SRC emacs-lisp
  (add-to-list 'auto-mode-alist '("\\.json\\'" . js-mode))
#+END_SRC

*** Shell
#+BEGIN_SRC emacs-lisp
  (setq sh-basic-offset 2)
  (setq sh-indentation 2)
#+END_SRC

** Completion Support
*** Company
#+BEGIN_SRC emacs-lisp
  (use-package company
    :config
    (add-hook 'after-init-hook 'global-company-mode)

    (setq company-backends (delete 'company-semantic company-backends))

    (define-key c-mode-map (kbd "C-c n") 'company-complete)
    (define-key c++-mode-map (kbd "C-c n") 'company-complete)
    (setq company-dabbrev-downcase 0))
#+END_SRC

*** Flycheck
Enabling global flycheck support.
#+BEGIN_SRC emacs-lisp
  (use-package flycheck
    :diminish flycheck-mode
    :init (global-flycheck-mode))
#+END_SRC

*** Yasnippets
#+BEGIN_SRC emacs-lisp
  (use-package yasnippet
    :diminish yas-minor-mode
    :init
    (yas-global-mode 1))
#+END_SRC

* Look and Feel
#+BEGIN_SRC emacs-lisp
  ;; (use-package color-theme-sanityinc-tomorrow)

  ;; (use-package leuven-theme)

  (use-package zenburn-theme)

  ;; (use-package gruvbox-theme)

  ;; (use-package material-theme)

  ;; (use-package monokai-theme)

  ;; (use-package plan9-theme)

  (use-package telephone-line
    :init
    (setq telephone-line-primary-left-separator 'telephone-line-cubed-left
          telephone-line-secondary-left-separator 'telephone-line-cubed-hollow-left
          telephone-line-primary-right-separator 'telephone-line-cubed-right
          telephone-line-secondary-right-separator 'telephone-line-cubed-hollow-right)
    (setq telephone-line-height 24
          telephone-line-evil-use-short-tag t))

  (if (daemonp)
      (add-hook 'after-make-frame-functions
                (lambda (frame)
                  (select-frame frame)
                  (load-theme 'zenburn t)
                  (telephone-line-mode 1)
                  (toggle-scroll-bar -1)))
    (progn (load-theme 'zenburn t)
           (telephone-line-mode 1)
           (toggle-scroll-bar -1)))
#+END_SRC

* My Code
#+BEGIN_SRC emacs-lisp
  (defun y/swap-windows ()
    "Swaps two windows and leaves the cursor in the original one"
    (interactive)
    (ace-swap-window)
    (aw-flip-window))

  (defun y/fsharp-reload-file ()
    "Reloads the whole file when in fsharp mode."
    (interactive)
    (fsharp-eval-region (point-min) (point-max)))

  (defun y/exit-emacs-client ()
    "consistent exit emacsclient.
  if not in emacs client, echo a message in minibuffer, don't exit emacs.
  if in server mode
  and editing file, do C-x # server-edit
  else do C-x 5 0 delete-frame"
    (interactive)
    (if server-buffer-clients
        (server-edit)
      (delete-frame)))

  (defun y/beautify-json ()
    (interactive)
    (let ((b (if mark-active (min (point) (mark)) (point-min)))
          (e (if mark-active (max (point) (mark)) (point-max))))
      (shell-command-on-region b e
                               "python -m json.tool" (current-buffer) t)))
#+END_SRC

Setting up my keybindings
#+BEGIN_SRC emacs-lisp
  (define-prefix-command 'y-map)
  (global-set-key (kbd "C-c y") 'y-map)

  (define-key y-map (kbd "s") 'y/swap-windows)
  (global-set-key (kbd "C-c q") 'y/exit-emacs-client)
  (define-key y-map (kbd "j") 'y/beautify-json)

  (add-hook 'fsharp-mode-hook
  (lambda () (local-set-key (kbd "C-c C-c") #'y/fsharp-reload-file)))
#+END_SRC

Registers
#+BEGIN_SRC emacs-lisp
  (set-register ?l (cons 'file "~/.emacs.d/loader.org"))
  (set-register ?n (cons 'file "~/Dropbox/Org/note.org"))
  (set-register ?t (cons 'file "~/Dropbox/Org/todo.org"))
  (set-register ?h (cons 'file "~/Dropbox/Org/today.org"))
#+END_SRC

* Conclusion
Setting the gc-cons threshold back to what it was at the beginning.

#+BEGIN_SRC emacs-lisp
  (setq gc-cons-threshold 10000000)
#+END_SRC