677 lines
22 KiB
Org Mode
677 lines
22 KiB
Org Mode
#+TITLE: Emacs Configuration
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This is my configuration for the emacs editor.
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* Set up UI
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Remove all those UI elements. They do not look good and waste space.
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#+BEGIN_SRC emacs-lisp
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(tool-bar-mode -1)
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(menu-bar-mode -1)
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(scroll-bar-mode -1)
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(tooltip-mode -1)
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(fringe-mode -1)
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#+END_SRC
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* Set up package repositories
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** Require package support
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State that we will need package support and define a macro for adding package repos to the archives
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#+BEGIN_SRC emacs-lisp
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(require 'package)
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(defmacro append-to-list (target suffix)
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"Append SUFFIX to TARGET in place."
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`(setq ,target (append ,target ,suffix)))
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#+END_SRC
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** Add package repos
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#+BEGIN_SRC emacs-lisp
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(append-to-list package-archives
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'(("melpa" . "http://melpa.org/packages/")
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("melpa-stable" . "http://stable.melpa.org/packages/")
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("org-elpa" . "https://orgmode.org/elpa/")))
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#+END_SRC
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** Ensure ~use-package~ command is present
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#+BEGIN_SRC emacs-lisp
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(package-initialize)
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(unless (package-installed-p 'use-package)
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(package-refresh-contents)
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(package-install 'use-package))
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(require 'use-package)
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(setq
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use-package-always-ensure t
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use-package-verbose t)
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(use-package gnu-elpa-keyring-update)
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#+END_SRC
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* Set Backup Location
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Emacs, by default clutters the file system with backup files.
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We do not want them to be right next to the actual file, so we tell emacs to use dedicated directory to store them.
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While we are at it, we also set rule for how many version emacs should keep as backups.
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#+BEGIN_SRC emacs-lisp
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(setq backup-directory-alist `(("." . "~/.emacs-backup")))
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(setq backup-by-copying t)
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(setq delete-old-versions t
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kept-new-versions 6
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kept-old-versions 2
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version-control t)
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#+END_SRC
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* Define useful functions
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** Reformat a whole buffer
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Reindet the whole buffer with ~F12~
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#+BEGIN_SRC emacs-lisp
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(defun indent-buffer ()
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(interactive)
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(save-excursion
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(indent-region (point-min) (point-max) nil)))
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(global-set-key [f12] 'indent-buffer)
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#+END_SRC
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** Split windows and immediately switch to it
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#+BEGIN_SRC emacs-lisp
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(defun split-right-and-enter ()
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"Split the window to the right and enter it."
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(interactive)
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(split-window-right)
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(other-window 1))
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(defun split-below-and-enter ()
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"Split the window down and enter it."
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(interactive)
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(split-window-below)
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(other-window 1))
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#+END_SRC
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** Quick buffer switching
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#+BEGIN_SRC emacs-lisp
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(defun switch-to-previous-buffer ()
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"Switch to previously open buffer. Repeated invocations toggle between the two most recently open buffers."
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(interactive)
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(switch-to-buffer (other-buffer (current-buffer) 1)))
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#+END_SRC
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* Theming
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** Main Theme
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#+BEGIN_SRC emacs-lisp
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(use-package zenburn-theme
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:config
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(load-theme 'zenburn t))
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#+END_SRC
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** Modeline
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#+BEGIN_SRC emacs-lisp
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(use-package moody
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:config
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(setq x-underline-at-descent-line t)
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(moody-replace-mode-line-buffer-identification)
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(moody-replace-vc-mode))
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#+END_SRC
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*** Minions Menu
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Add a menu to the modeline to access all minor modes.
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#+BEGIN_SRC emacs-lisp
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(use-package minions
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:config (minions-mode 1))
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#+END_SRC
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** Font
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#+BEGIN_SRC emacs-lisp
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(set-face-attribute 'default nil
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:family "Hack"
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:height 110
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:weight 'normal
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:width 'normal)
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#+END_SRC
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* Ivy
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Use Ivy to make minibuf promts better. Adds the ability to sort and filter.
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** Use Ivy
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#+BEGIN_SRC emacs-lisp
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(use-package ivy
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:ensure t
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:init
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(ivy-mode 1)
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(unbind-key "S-SPC" ivy-minibuffer-map)
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(setq ivy-height 30
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ivy-use-virtual-buffers t
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ivy-use-selectable-prompt t)
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(defun swiper-at-point ()
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(interactive)
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(swiper (thing-at-point 'word)))
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:bind (("C-x b" . ivy-switch-buffer)
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("C-c C-r" . ivy-resume)
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("C-c s" . swiper-at-point)
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("C-s" . swiper))
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:diminish)
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;; ivy-rich makes Ivy look a little bit more like Helm.
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(use-package ivy-rich
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:after counsel
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:custom
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(ivy-virtual-abbreviate 'full
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ivy-rich-switch-buffer-align-virtual-buffer t
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ivy-rich-path-style 'abbrev)
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:init
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(ivy-rich-mode))
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(use-package ivy-hydra)
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#+END_SRC
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** Smex
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Sort commands by recency in ivy windows
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#+BEGIN_SRC emacs-lisp
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(use-package smex)
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#+END_SRC
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* Counsel
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#+BEGIN_SRC emacs-lisp
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(use-package counsel
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:ensure t
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:after ivy
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:init
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(counsel-mode 1)
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:bind (("C-c ;" . counsel-M-x)
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("C-c U" . counsel-unicode-char)
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("C-c i" . counsel-imenu)
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("C-x f" . counsel-find-file)
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("C-c y" . counsel-yank-pop)
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("C-c r" . counsel-recentf)
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:map ivy-minibuffer-map
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("C-r" . counsel-minibuffer-history))
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:diminish)
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#+END_SRC
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* Undo Tree
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Using the beauty that is undo-tree, we can easily navigate through history of a buffer.
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This includes obviously going back in edit history, but also branching of end returning to previous states.
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#+BEGIN_SRC emacs-lisp
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(use-package undo-tree
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:bind (("C-x u" . undo-tree-visualize)
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("C-z" . undo-tree-undo)
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("C-S-z" . undo-tree-redo))
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:config
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(global-undo-tree-mode +1)
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(unbind-key "M-_" undo-tree-map)
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:diminish)
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;; Trying undo-propose, which seems to offer a better experience, as
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;; undo tree is prone to losing data.
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(use-package undo-propose
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:disabled
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:bind (("C-c _" . undo-propose)
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:map undo-propose-mode-map
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("<up>" . undo-only)))
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#+END_SRC
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With this we can use ~C-x u~ in any buffer to bring up the tree and navigate it using the arrow key.
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Once in a state we agree with, just press ~q~ and we are done.
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* Magit
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Magit is THE go to package for using git in emacs.
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#+BEGIN_SRC emacs-lisp
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(use-package magit
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:bind (("C-c g" . magit-status))
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:diminish magit-auto-revert-mode
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:diminish auto-revert-mode
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:custom
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(magit-remote-set-if-missing t)
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(magit-diff-refine-hunk t)
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:config
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(magit-auto-revert-mode t)
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(advice-add 'magit-refresh :before #'maybe-unset-buffer-modified)
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(advice-add 'magit-commit :before #'maybe-unset-buffer-modified)
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(setq magit-completing-read-function 'ivy-completing-read)
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(add-to-list 'magit-no-confirm 'stage-all-changes))
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(use-package libgit
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:disabled
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:after magit)
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#+END_SRC
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The ~advice-add~ entries are thereto stop magit from bugging us to save buffers when commiting and refreshing.
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** Helper Functions
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#+BEGIN_SRC emacs-lisp
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(autoload 'diff-no-select "diff")
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(defun current-buffer-matches-file-p ()
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"Return t if the current buffer is identical to its associated file."
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(when (and buffer-file-name (buffer-modified-p))
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(diff-no-select buffer-file-name (current-buffer) nil 'noasync)
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(with-current-buffer "*Diff*"
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(and (search-forward-regexp "^Diff finished \(no differences\)\." (point-max) 'noerror) t))))
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#+END_SRC
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Clear modified bit on all unmodified buffers
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#+BEGIN_SRC emacs-lisp
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(defun maybe-unset-buffer-modified (&optional _)
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(interactive)
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(dolist (buf (buffer-list))
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(with-current-buffer buf
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(when (and buffer-file-name (buffer-modified-p) (current-buffer-matches-file-p))
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(set-buffer-modified-p nil)))))
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#+END_SRC
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Don't prompt to save unmodified buffers on exit.
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#+BEGIN_SRC emacs-lisp
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(advice-add 'save-buffers-kill-emacs :before #'maybe-unset-buffer-modified)
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#+END_SRC
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#+BEGIN_SRC emacs-lisp
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(defun kill-buffer-with-prejudice (&optional _)
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"Kill a buffer, eliding the save dialogue if there are no diffs."
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(interactive)
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(when (current-buffer-matches-file-p) (set-buffer-modified-p nil))
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(kill-buffer))
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#+END_SRC
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* Org Mode
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** Define important files
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*** The Link Dump
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I use a single file to dump all links I plan on viewing later.
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#+BEGIN_SRC emacs-lisp
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(defun open-link-list ()
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(interactive)
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(find-file "~/Notes/links.org"))
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#+END_SRC
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*** The Quick Note File
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This file serves as a notepad for wirting down all sorts of things that have not yet been refiled.
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#+BEGIN_SRC emacs-lisp
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(defun open-semantic-notes ()
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(interactive)
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(find-file "~/Notes/semantic.org"))
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#+END_SRC
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*** The TODO File
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This file will track the bulk of all todo items we will enter.
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#+BEGIN_SRC emacs-lisp
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(defun open-main-todo-file ()
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(interactive)
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(find-file "~/Notes/todo.org"))
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#+END_SRC
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** Configure org-mode
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This is the main configuration for the infamous org-mode.
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The most important parts are configuring key bindings to quickly access the files we have defined above.
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#+BEGIN_SRC emacs-lisp
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(use-package org
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;; Always get this from the GNU archive.
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:pin gnu
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:diminish org-indent-mode
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:bind (("C-c o c" . org-capture)
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("C-c o n" . open-semantic-notes)
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("C-c o t" . open-main-todo-file)
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("C-c o l" . open-link-list)
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("C-c o s" . org-store-link)
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("C-c o a" . org-agenda)
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:map org-mode-map
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("M-s-<return>" . org-insert-todo-heading)
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("C-c c" . org-mode-insert-code)
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("C-c a s" . org-emphasize)
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("C-c a r" . org-ref)
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("C-c a e" . outline-show-all)
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("C-c a t" . unindent-by-four))
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:hook (org-mode . visual-line-mode)
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:config
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(let ((todo-path (expand-file-name "~/Notes/todo.org")))
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(when (file-exists-p todo-path)
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(setq org-agenda-files (list todo-path)
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org-default-notes-file todo-path)))
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(setq org-footnote-section ""
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org-startup-with-inline-images t
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org-pretty-entities t
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org-ellipsis "…"
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org-footnote-section nil
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org-hide-leading-stars nil
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)
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(setcar (nthcdr 4 org-emphasis-regexp-components) 4)
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(defun org-mode-insert-code ()
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(interactive)
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(org-emphasize ?~)))
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#+END_SRC
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** Beautify org-mode
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*** Icons for headline indentation
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#+BEGIN_SRC emacs-lisp
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(use-package org-bullets
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:init (add-hook 'org-mode-hook (lambda () (org-bullets-mode 1))))
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#+END_SRC
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*** Replace checkmark with unicode icons
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#+BEGIN_SRC emacs-lisp
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(use-package pretty-mode
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:init (global-pretty-mode t))
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(add-hook 'org-mode-hook (lambda ()
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"Beautify Org Checkbox Symbol"
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(push '("[ ]" . "☐") prettify-symbols-alist)
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(push '("[X]" . "☑" ) prettify-symbols-alist)
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(push '("[-]" . "❍" ) prettify-symbols-alist)
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(prettify-symbols-mode)))
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#+END_SRC
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*** Strike out done ckeckbox items
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#+BEGIN_SRC emacs-lisp
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(defface org-checkbox-done-text
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'((t (:foreground "#71696A" :strike-through t)))
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"Face for the text part of a checked org-mode checkbox.")
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(font-lock-add-keywords
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'org-mode
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`(("^[ \t]*\\(?:[-+*]\\|[0-9]+[).]\\)[ \t]+\\(\\(?:\\[@\\(?:start:\\)?[0-9]+\\][ \t]*\\)?\\[\\(?:X\\|\\([0-9]+\\)/\\2\\)\\][^\n]*\n\\)"
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1 'org-checkbox-done-text prepend))
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'append)
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#+END_SRC
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** CSS Themes for Exports
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When exporting from org-mode (usually to HTML) we want to specify additional styles.
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#+BEGIN_SRC emacs-lisp
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(defvar org-theme-css-dir "~/.emacs.d/org-css/")
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#+END_SRC
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Pack some ~.css~ files into this directory. They will be available for choosing when exporting.
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The folowing code will define a function to inline css into a self-contained html file.
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To use it type ~M-x toggle-org-custom-inline-style~ into an org-mode buffer.
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When exporting to HTML emacs will ask which css theme to use.
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#+BEGIN_SRC emacs-lisp
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(defun toggle-org-custom-inline-style ()
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(interactive)
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(let ((hook 'org-export-before-parsing-hook)
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(fun 'set-org-html-style))
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(if (memq fun (eval hook))
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(progn
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(remove-hook hook fun 'buffer-local)
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(message "Removed %s from %s" (symbol-name fun) (symbol-name hook)))
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(add-hook hook fun nil 'buffer-local)
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(message "Added %s to %s" (symbol-name fun) (symbol-name hook)))))
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(defun org-theme ()
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(interactive)
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(let* ((cssdir org-theme-css-dir)
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(css-choices (directory-files cssdir nil ".css$"))
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(css (completing-read "theme: " css-choices nil t)))
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(concat cssdir css)))
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(defun set-org-html-style (&optional backend)
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(interactive)
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(when (or (null backend) (eq backend 'html))
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(let ((f (or (and (boundp 'org-theme-css) org-theme-css) (org-theme))))
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(if (file-exists-p f)
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(progn
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(set (make-local-variable 'org-theme-css) f)
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(set (make-local-variable 'org-html-head)
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(with-temp-buffer
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(insert "<style type=\"text/css\">\n<!--/*--><![CDATA[/*><!--*/\n")
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(insert-file-contents f)
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(goto-char (point-max))
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(insert "\n/*]]>*/-->\n</style>\n")
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(buffer-string)))
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(set (make-local-variable 'org-html-head-include-default-style)
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nil)
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(message "Set custom style from %s" f))
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(message "Custom header file %s doesnt exist")))))
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#+END_SRC
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** Prettier Timestamps in Exports
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The default timestamps look pretty unintuitive, with all the angle brackets and all. Let's make them look better.
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#+BEGIN_SRC emacs-lisp
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;;(add-to-list 'org-export-filter-timestamp-functions
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;; #'endless/filter-timestamp)
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;;(defun endless/filter-timestamp (trans back _comm)
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;; (pcase back
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;; ((or `jekyll `html)
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;; (replace-regexp-in-string "&[lg]t;" "" trans))
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;; (`latex
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;; (replace-regexp-in-string "[<>]" "" trans))))
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#+END_SRC
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Removed for now, this somehow breaks emacs
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OK, no more brackets. Now for a better formatted display.
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#+BEGIN_SRC emacs-lisp
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(setq-default org-display-custom-times t)
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(setq org-time-stamp-custom-formats
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'("<%a %d.%m.%Y>" . "<%d.%m.%y %H:%M>"))
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#+END_SRC
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** Templates
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*** Babel
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Here we set custom templates to be used for structure expansion.
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These are used when we type "<" folowed by the shortcut for a template and hit "TAB".
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e.g. "<s TAB" expands to ~#+BEGIN_SRC ?\n\n#+END_SRC~
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**** emacs-lisp
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Shortcut for creating ~emacs-lisp~ code blocks. This is used extensively in this very file.
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#+BEGIN_SRC emacs-lisp
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(add-to-list 'org-structure-template-alist '("el" "#+BEGIN_SRC emacs-lisp\n?\n#+END_SRC"))
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#+END_SRC
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*** Org Capture
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Here we define templates we want to use to quickly capture stuff and automatically file them away.
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#+BEGIN_SRC emacs-lisp
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(setq org-capture-templates
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'(("l" "Link" entry (file "~/Notes/links.org")
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"* NEW %?\n:PROPERTIES:\n:CREATED: %U\n:END:\n%i\n")))
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#+END_SRC
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* Additional Package Imports
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** All The Icons
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We want to have some nice looking icons
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#+BEGIN_SRC emacs-lisp
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(use-package all-the-icons)
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#+END_SRC
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** Recentf
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Show recent files in the buffer selection
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#+BEGIN_SRC emacs-lisp
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(use-package recentf
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:init (recentf-mode t)
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:config
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(add-to-list 'recentf-exclude "\\.emacs.d")
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(add-to-list 'recentf-exclude ".+tmp......\\.org"))
|
|
#+END_SRC
|
|
|
|
** Rainbow Delimiters
|
|
We want to have some nicely colored delimiters when reading and writing lisp code
|
|
#+BEGIN_SRC emacs-lisp
|
|
(use-package rainbow-delimiters
|
|
:disabled
|
|
:hook (prog-mode . rainbow-delimiters-mode))
|
|
#+END_SRC
|
|
|
|
** Markdown Mode
|
|
#+BEGIN_SRC emacs-lisp
|
|
(use-package markdown-mode
|
|
:mode ("\\.md$" . gfm-mode)
|
|
:config
|
|
(when (executable-find "pandoc")
|
|
(setq markdown-command "pandoc -f markdown -t html")))
|
|
#+END_SRC
|
|
|
|
** Duplicate Thing
|
|
Quick bind to ~C-c u ~ to duplicate the current line
|
|
#+BEGIN_SRC emacs-lisp
|
|
(use-package duplicate-thing
|
|
:bind (("C-c u" . duplicate-thing)))
|
|
#+END_SRC
|
|
|
|
** Guide Key
|
|
Use this to get some help with key bindings
|
|
#+BEGIN_SRC emacs-lisp
|
|
(use-package guide-key
|
|
:diminish guide-key-mode
|
|
:config
|
|
(guide-key-mode t)
|
|
(setq guide-key/guide-key-sequence '("C-x v" ;; version control
|
|
"C-c a" ;; my mode-specific bindings
|
|
"C-c l" ;; line-jumping
|
|
"C-c o"
|
|
)))
|
|
#+END_SRC
|
|
** htmlize
|
|
HTML Exporter for org-mode
|
|
#+BEGIN_SRC emacs-lisp
|
|
(use-package htmlize)
|
|
#+END_SRC
|
|
|
|
** ACE Window
|
|
Small package to quickly switch tiled windows.
|
|
Use ~M-p~ to quickly switch.
|
|
#+BEGIN_SRC emacs-lisp
|
|
(use-package ace-window
|
|
:bind (("M-p" . 'ace-window)))
|
|
#+END_SRC
|
|
|
|
* Set Variables
|
|
** General Emacs Options
|
|
#+BEGIN_SRC emacs-lisp
|
|
(setq
|
|
compilation-always-kill t ; Never prompt to kill a compilation session.
|
|
compilation-scroll-output 'first-error ; Always scroll to the bottom.
|
|
make-backup-files nil ; No backups, thanks.
|
|
auto-save-default nil ; Or autosaves. What's the difference between autosaves and backups?
|
|
create-lockfiles nil ; Emacs sure loves to put lockfiles everywhere.
|
|
default-directory "~/Notes/" ; All my Notes are here.
|
|
inhibit-startup-screen t ; No need to see GNU agitprop.
|
|
kill-whole-line t ; Lets C-k delete the whole line
|
|
require-final-newline t ; Auto-insert trailing newlines.
|
|
ring-bell-function 'ignore ; Do not ding. Ever.
|
|
use-dialog-box nil ; Dialogues always go in the modeline.
|
|
initial-scratch-message nil ; SHUT UP SHUT UP SHUT UP
|
|
save-interprogram-paste-before-kill t ; preserve paste to system ring
|
|
enable-recursive-minibuffers t ; don't fucking freak out if I use the minibuffer twice
|
|
sentence-end-double-space nil ; are you fucking kidding me with this shit
|
|
confirm-kill-processes nil ; don't whine at me when I'm quitting.
|
|
mark-even-if-inactive nil ; prevent really unintuitive undo behavior
|
|
load-prefer-newer t ; load newest file version available
|
|
user-full-name "Marcel Fries" ; it's me
|
|
)
|
|
#+END_SRC
|
|
|
|
** Read environment variables from the shell
|
|
#+BEGIN_SRC emacs-lisp
|
|
(use-package exec-path-from-shell
|
|
:config
|
|
(exec-path-from-shell-initialize))
|
|
#+END_SRC
|
|
|
|
** Show the current filename in titlebar
|
|
#+BEGIN_SRC emacs-lisp
|
|
(setq-default frame-title-format
|
|
(list '((buffer-file-name " %f"
|
|
(dired-directory
|
|
dired-directory
|
|
(revert-buffer-function " %b"
|
|
("%b - Dir: " default-directory)))))))
|
|
#+END_SRC
|
|
|
|
** Default encoding
|
|
#+BEGIN_SRC emacs-lisp
|
|
(prefer-coding-system 'utf-8)
|
|
#+END_SRC
|
|
|
|
** Shorten "yes or no" questions
|
|
#+BEGIN_SRC emacs-lisp
|
|
(defalias 'yes-or-no-p 'y-or-n-p)
|
|
#+END_SRC
|
|
|
|
** Always highlight the current line
|
|
#+BEGIN_SRC emacs-lisp
|
|
(global-hl-line-mode t)
|
|
#+END_SRC
|
|
|
|
** Always highlight matching braces
|
|
#+BEGIN_SRC emacs-lisp
|
|
(show-paren-mode t)
|
|
#+END_SRC
|
|
|
|
** Allow selection override
|
|
#+BEGIN_SRC emacs-lisp
|
|
(delete-selection-mode t)
|
|
#+END_SRC
|
|
|
|
** Behave like a normal text editor
|
|
#+BEGIN_SRC emacs-lisp
|
|
(cua-mode t)
|
|
#+END_SRC
|
|
|
|
** Remember where we are
|
|
#+BEGIN_SRC emacs-lisp
|
|
(save-place-mode)
|
|
#+END_SRC
|
|
|
|
** Set cursor and indet mode
|
|
#+BEGIN_SRC emacs-lisp
|
|
(setq-default
|
|
cursor-type 'bar
|
|
indent-tabs-mode nil
|
|
cursor-in-non-selected-windows nil)
|
|
#+END_SRC
|
|
|
|
** Set default column width
|
|
#+BEGIN_SRC emacs-lisp
|
|
(set-fill-column 95)
|
|
#+END_SRC
|
|
* Hooks
|
|
** Remove trailing whitespace on file close
|
|
#+BEGIN_SRC emacs-lisp
|
|
(add-hook 'before-save-hook 'delete-trailing-whitespace)
|
|
#+END_SRC
|
|
|
|
** Elisp
|
|
Some customization for writing elisp
|
|
#+BEGIN_SRC emacs-lisp
|
|
(defun my-elisp-mode-hook ()
|
|
"My elisp customizations."
|
|
(electric-pair-mode 1)
|
|
(add-hook 'before-save-hook 'check-parens nil t)
|
|
(auto-composition-mode nil))
|
|
|
|
(add-hook 'emacs-lisp-mode-hook 'my-elisp-mode-hook)
|
|
#+END_SRC
|
|
|
|
* Global Key Bindings
|
|
#+BEGIN_SRC emacs-lisp
|
|
(bind-key "C-x k" 'kill-buffer-with-prejudice)
|
|
(bind-key "C-c 5" 'query-replace-regexp) ;; stupid vestigial binding
|
|
(bind-key "M-/" 'hippie-expand)
|
|
(bind-key "C-c \\" 'align-regexp)
|
|
(bind-key "C-c m" 'compile)
|
|
(bind-key "C-c 3" 'split-right-and-enter)
|
|
(bind-key "C-c 2" 'split-below-and-enter)
|
|
(bind-key "C-c p" 'switch-to-previous-buffer)
|
|
(bind-key "C-c /" 'comment-or-uncomment-region)
|
|
(bind-key "C-c x" 'ESC-prefix)
|
|
(bind-key "M-i" 'delete-indentation)
|
|
(bind-key "C-+" 'text-scale-increase)
|
|
(bind-key "C--" 'text-scale-decrease)
|
|
(bind-key "C-<" 'beginning-of-buffer)
|
|
(bind-key "C->" 'end-of-buffer)
|
|
#+END_SRC
|
|
|
|
** Unbind some default key bindings
|
|
#+BEGIN_SRC emacs-lisp
|
|
(unbind-key "C-<tab>") ;; prevent switching to tab mode randomly
|
|
(unbind-key "C-h n") ;; I have never wanted to see emacs news ever
|
|
(unbind-key "C-h C-n") ;; why on earth is it bound to two keybindings??
|
|
(unbind-key "C-x C-d") ;; list-directory is utterly useless given the existence of dired
|
|
(unbind-key "M-o") ;; facemenu mode is useless
|
|
(unbind-key "C-x C-r") ;; as is find-file-read-only
|
|
#+END_SRC
|
|
|
|
* Load ~custom.el~
|
|
Load a custom file from the emacs home dir.
|
|
This file is specific to the maschine emacs runs on.
|
|
It conatins customizations and file locations that are maschine dependend.
|
|
#+BEGIN_SRC emacs-lisp
|
|
(setq custom-file "~/.emacs.d/custom.el")
|
|
(load custom-file 'noerror)
|
|
#+END_SRC
|