Camden Dixie O'Brien
2d0854eef2
I never really ended up using it, perhaps I will revisit it at some point but for know there is no need.
323 lines
8.7 KiB
Org Mode
323 lines
8.7 KiB
Org Mode
#+TITLE: Emacs Configuration
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#+AUTHOR: Camden Dixie O'Brien
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#+ATTR_LATEX: :float t
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Shout out to Harry R. Schwartz; A whole bunch of this config
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(including the idea of embeddeding the lot in an Org document) is
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yanked from [[https://github.com/hrs/dotfiles][his dotfiles repo]].
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The rest of this config grabs packages via =use-package=, so that
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needs to be set up to install them if they aren't already.
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#+begin_src emacs-lisp
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(require 'use-package-ensure)
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(setq use-package-always-ensure t)
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#+end_src
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* UI
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The start-up message gets pretty annoying, so disable that.
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#+begin_src emacs-lisp
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(setq inhibit-startup-screen t)
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#+end_src
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The default window size is just a little too small for my taste.
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#+begin_src emacs-lisp
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(when window-system (set-frame-size (selected-frame) 90 48))
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#+end_src
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And I like a little more line spacing than default.
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#+begin_src emacs-lisp
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(setq-default line-spacing 0.2)
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#+end_src
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Also, the menu-, tool- and scroll-bar are ugly, take up space and I
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don't use them.
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#+begin_src emacs-lisp
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(menu-bar-mode -1)
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(tool-bar-mode -1)
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(scroll-bar-mode -1)
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#+end_src
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** Colour Scheme
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Currently using =spacemacs-theme='s light variant, but I prefer a pure
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white background to the off-white it has by default.
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#+begin_src emacs-lisp
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(use-package spacemacs-theme
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:defer t)
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(setq spacemacs-theme-custom-colors
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'((bg1 . "#ffffff")
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(comment-bg . "#ffffff")))
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(load-theme 'spacemacs-light t)
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#+end_src
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* Org-mode
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I use a couple non-standard bits and pieces, but not a whole bunch. I
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really like the =<s= to insert a source block thing (which was
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deprecated); =org-tempo= brings that back.
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#+begin_src emacs-lisp
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(use-package org
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:ensure org-plus-contrib
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:config
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(require 'org-tempo))
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#+end_src
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** Source Blocks
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Pressing tab inside a source block should indent appropriately for its
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language.
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#+begin_src emacs-lisp
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(setq org-src-tab-acts-natively t)
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#+end_src
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=babel= lets us evaluate Org documents containing source blocks!
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I've left the enabling of this for most languages to the section
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for that language, but I'll add Emacs Lisp and shell here.
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#+begin_src emacs-lisp
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(org-babel-do-load-languages
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'org-babel-load-languages
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'((emacs-lisp . t)
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(shell . t)))
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#+end_src
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By default trying to execute a source block prompts you, which is
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super annoying since I'm realistically not going to try to run any
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code from Org documents I haven't written, so that needs
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disabling. You can do that by setting [[help:org-confirm-babel-evaluate][org-confirm-babel-evaluate]] to
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=nil=.
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#+begin_src emacs-lisp
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(setq org-confirm-babel-evaluate nil)
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#+end_src
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Another annoying thing that happens by default is the clobbering of
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the window layout when you open a source block. You can change that
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by setting [[help:org-src-window-setup][org-src-window-setup]].
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#+begin_src emacs-lisp
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(setq org-src-window-setup 'split-window-below)
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#+end_src
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** Exporting
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I very rarely want a table of contents, as most of my org documents
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are pretty short.
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#+begin_src emacs-lisp
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(setq org-export-with-toc nil)
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#+end_src
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*** HTML
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=htmlize= is needed for decent HTML exporting, and there is no need
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for all that stuff at the bottom.
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#+begin_src emacs-lisp
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(use-package htmlize)
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(setq org-html-postamble nil)
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#+end_src
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*** LaTeX
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Use =minted= (LaTeX package) to do syntax highlighting in code blocks:
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#+begin_src emacs-lisp
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(add-to-list 'org-latex-packages-alist '("" "minted"))
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(setq org-latex-listings 'minted)
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#+end_src
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=minted= actually calls =pygments= through the shell, which =pdflatex=
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doesn't like; you have to tell it not to worry, and that everything is
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going to be OK.
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#+begin_src emacs-lisp
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(setq org-latex-pdf-process
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'("xelatex -shell-escape -interaction nonstopmode -output-directory %o %f"
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"xelatex -shell-escape -interaction nonstopmode -output-directory %o %f"
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"xelatex -shell-escape -interaction nonstopmode -output-directory %o %f"))
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#+end_src
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Also, I don't like Emacs' built-in PDF viewer, so open PDFs in Evince instead:
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#+begin_src emacs-lisp
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(eval-after-load "org"
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'(progn
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(setcdr (assoc "\\.pdf\\'" org-file-apps) "evince %s")))
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#+end_src
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* Start up
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Org is better suited as scratch space than Funamental, I'd say.
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#+begin_src emacs-lisp
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(setq initial-major-mode 'org-mode)
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(setq initial-scratch-message "")
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#+end_src
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* Magit
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=magit= is truly a wonderful creation! Only deviations from defaults
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here are a keybinding for =magit-status= and a maximum length for the
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summary line of commit messages (after which the excess is
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highlighted).
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#+begin_src emacs-lisp
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(use-package magit
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:bind
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("C-x g" . magit-status)
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:config
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(setq git-commit-summary-max-length 72))
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#+end_src
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* Language Integrations
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Generally, 8-character-wide tabs are not my thing.
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#+begin_src emacs-lisp
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(setq-default tab-width 4)
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(setq-default basic-offset 4)
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#+end_src
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And generally indenting with spaces is more common, so make that the default:
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#+begin_src emacs-lisp
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(setq-default indent-tabs-mode nil)
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#+end_src
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** C
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For C, I like to indent with tabs and align with spaces: this
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behaviour is provided by =smart-tabs-mode=.
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#+begin_src emacs-lisp
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(use-package smart-tabs-mode)
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(smart-tabs-insinuate 'c)
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#+end_src
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I'll generally format my code in BSD style but I also use
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=clang-format= a lot, so I have a keybinding to run that.
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#+begin_src emacs-lisp
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(setq c-default-style "bsd")
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(use-package clang-format)
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(add-hook 'c-mode-hook
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(lambda ()
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(define-key c-mode-map (kbd "C-M-f")
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'clang-format-buffer)))
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#+end_src
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Meson is my build system of choice for C, but I also use CMake a lot.
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#+begin_src emacs-lisp
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(use-package meson-mode)
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(use-package cmake-mode)
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#+end_src
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** Haskell
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My workflow with Haskell is very REPL-based, so I always want
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=interactive-haskell-mode= on.
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#+begin_src emacs-lisp
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(use-package haskell-mode)
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(require 'haskell-interactive-mode)
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(add-hook 'haskell-mode-hook 'interactive-haskell-mode)
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#+end_src
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And, of course, that REPL needs to be taking advantage of parallelism!
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#+begin_src emacs-lisp
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(require 'haskell-process)
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(set-variable 'haskell-process-args-ghci
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'("-threaded" "+RTS" "-N8" "-RTS"))
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#+end_src
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** Idris
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The only thing to change from the defaults here is to add a more
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convenient way to case-split.
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#+begin_src emacs-lisp
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(use-package idris-mode)
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(add-hook 'idris-mode-hook
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(lambda ()
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(define-key idris-mode-map (kbd "C-c SPC")
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'idris-case-split)))
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#+end_src
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** Rust
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I never really use Rust without Cargo, so always turn on the minor
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mode for Cargo in Rust buffers.
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#+begin_src emacs-lisp
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(use-package rust-mode)
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(use-package cargo)
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(add-hook 'rust-mode-hook 'cargo-minor-mode)
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#+end_src
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** Lisps
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*** Racket
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Get =racket-mode= for some Racket-specific things, like searching documentation
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#+begin_src emacs-lisp
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(use-package racket-mode)
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#+end_src
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*** Common Lisp
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Use SLIME and Quicklisp for Common Lisp (SBCL), with a convenient
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binding for =slime-selector=
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#+begin_src emacs-lisp
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(use-package slime)
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(setq inferior-lisp-program "sbcl")
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(global-set-key (kbd "C-c s") 'slime-selector)
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(load (expand-file-name "~/.quicklisp/slime-helper.el"))
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#+end_src
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And we also want to enable execution of CL source blocks in Org
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mode, which we do by adding an item to [[help:org-babel-load-languages][org-babel-load-languages]].
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#+begin_src emacs-lisp
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(org-babel-do-load-languages
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'org-babel-load-languages
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'((lisp . t)))
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#+end_src
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*** Paredit
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=paredit= is generally very useful for balancing parenthesis so we
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want that turned on for all the lisps. Additionally, it's nice to have
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an entire expression highlighted when the cursor is on one of its
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enclosing parens.
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#+begin_src emacs-lisp
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(use-package paredit)
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(setq lispy-mode-hooks
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'(emacs-lisp-mode-hook
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lisp-mode-hook
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racket-mode-hook
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scheme-mode-hook))
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(dolist (hook lispy-mode-hooks)
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(add-hook hook (lambda ()
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(setq show-paren-style 'expression)
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(paredit-mode))))
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#+end_src
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* EXWM
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One must fulfil the meme of doing everything with Emacs...
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#+begin_src emacs-lisp
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(use-package exwm
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:config
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(require 'exwm-config)
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(exwm-config-default))
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#+end_src
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