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Emacs Configuration

Personal Information
Sane defaults
Packages
- Dashboard
- PDFTools
- ORG Mode
- Doom-modeline
- Ace window
- Which-key
- Swiper
- Beacon
- Async
- Page-break-lines
- Undoo-tree
- Saveplace
- Eldoc
- Try
- Auto-complete
- Neotree
- Color-theme-modern
- Flycheck
- Recentf
- Expand region
- Smoothscrolling
- Webmode
- Emmet
- Scratch major mode
- Shell pop
- Quickrun
- terminal-here
- Whitespace
- Ivy
- Packages config

I've been using emacs for a while now and dicided that it is time to convert my configs to org mode.

This configuration uses the use-package package from John Wiegley, which is a fantastic way to manage package configurations.

Personal Information

(setq user-full-name "b2r1s8"
      user-mail-address "")

Sane defaults

The default emacs config is ugly and not efficient.

Startup Performance

Make startup faster by reducing the frequency of garbage collection and then use a hook to measure Emacs startup time.

  ;; The default is 800 kilobytes.  Measured in bytes.
  (setq gc-cons-threshold (* 50 1000 1000))

  ;; Profile emacs startup
  (add-hook 'emacs-startup-hook
            (lambda ()
              (message "*** Emacs loaded in %s with %d garbage collections."
                       (format "%.2f seconds"
                               (float-time
                                (time-subtract after-init-time before-init-time)))
                       gcs-done)))

Customizing emacs

  ;; Fist things first
  (setq inhibit-startup-message t)
  (tool-bar-mode -1)    ;;  Remove tool bar C-x u undo | C-w cut | M-w copy | C-y paste
  (menu-bar-mode -1) ;; Remove menus
  (scroll-bar-mode -1) ;; Remove scroll bar
  (global-hl-line-mode t) ;; Show current line
  (global-prettify-symbols-mode t) ;; Prettify symbols mode
  (set-face-attribute 'default nil :height 80) ;; Font size
  (column-number-mode 1) ;; Colummns numeration
  (show-paren-mode 1) ;; Show parent parentesis
  (setq visible-bell t) ;; Visible bell
  ;;(setq-default header-line-format mode-line-format)
  (setq-default mode-line-format nil)
  (setq-default header-line-format nil)
  (setq
   backup-by-copying t      ; don't clobber symlinks
   backup-directory-alist
    '(("." . "~/.emacs.d/backups/"))    ; don't litter my fs tree
   delete-old-versions t
   kept-new-versions 6
   kept-old-versions 2
   version-control t)       ; use versioned backups

  ;; Tabbar
  (use-package tabbar)
  (tab-bar-mode 1) ;; Additing tabs

  ;; Show time and date on the mode line
  (setq display-time-day-and-date t)
  (setq display-time-format "%a %b %F %R")
  (display-time-mode 1)

  ;; Frame tansparency
  (set-frame-parameter (selected-frame) 'alpha '(75 . 75))
  (add-to-list 'default-frame-alist '(alpha . (75 . 75)))
  (set-frame-parameter (selected-frame) 'fullscreen 'maximized)
  (add-to-list 'default-frame-alist '(fullscreen . maximized))

  ;; Line numbers
  (global-linum-mode t)
  (setq linum-format "%2d \u2502")
  (dolist (mode '(org-mode-hook
          term-mode-hook
          shell-mode-hook
          treemacs-mode-hook
          eshell-mode-hook))
    (add-hook mode (lambda () (display-line-numbers-mode 0))))

  ;; Border
  (setq frame-resize-pixelwise t)
  (set-frame-parameter nil 'fullscreen 'fullboth)

  ;; Keep all backup and auto-save files in one directory
  (setq backup-directory-alist '(("." . "~/.emacs.d/backups")))
  (setq auto-save-file-name-transforms '((".*" "~/.emacs.d/auto-save-list/" t)))

  ;; UTF-8 please
  (setq locale-coding-system 'utf-8) ; pretty
  (set-terminal-coding-system 'utf-8) ; pretty
  (set-keyboard-coding-system 'utf-8) ; pretty
  (set-selection-coding-system 'utf-8) ; please
  (prefer-coding-system 'utf-8) ; with sugar on top

  ;; Identation:
  (setq-default tab-width 2)
  (setq-default standard-indent 2)
  (setq c-basic-offset tab-width)
  (setq-default electric-indent-inhibit t)
  (setq-default indent-tabs-mode nil)
  (setq backward-delete-char-untabify-method 'nil)

  ;; Enable bracket pair-matching
  (setq electric-pair-pairs '(
                (?\{ . ?\})
                (?\( . ?\))
                (?\[ . ?\])
                (?\" . ?\")
                ))
  (electric-pair-mode t)

Changing how focus work

This fuction change the focus to the new window

;;; Mude o foco p/ novas janelas
(defun split-and-follow-horizontally ()
  (interactive)
  (split-window-below)
  (balance-windows)
  (other-window 1))

(defun split-and-follow-vertically ()
  (interactive)
  (split-window-right)
  (balance-windows)
  (other-window 1))

Alias

Some alias that make my life easier

;; Alias
(defalias 'yes-or-no-p 'y-or-n-p)
(defalias 'open 'find-file-other-window)
(defalias 'clean 'eshell/clear-scrollback)
(defalias 'list-buffers 'ibuffer)

Key binds

Some key binds to make my life easier

(global-unset-key (kbd "C-z")) ;; Unbind C-z
(global-unset-key (kbd "C-Z")) ;; Unbind C-Z
(global-set-key (kbd "s-<up>") 'windmove-up)
(global-set-key (kbd "s-<down>") 'windmove-down)
(global-set-key (kbd "s-<right>") 'windmove-right)
(global-set-key (kbd "s-<left>") 'windmove-left)
(global-set-key (kbd "C-<tab>") 'other-window)
(global-set-key (kbd "C-x 3") 'split-and-follow-vertically)	
(global-set-key (kbd "C-x 2") 'split-and-follow-horizontally)
(global-set-key (kbd "C-c l") 'org-store-link)
(global-set-key (kbd "C-c a") 'org-agenda)
(global-set-key (kbd "C-c c") 'org-capture)

Functions

Some Functions that I use.

Dashboard

;; Open new tab on the dashboard
(defun new-tab ()
  (interactive)
  (tab-new-to)
  (switch-to-buffer (get-buffer-create "*dashboard*")))
(global-set-key (kbd "s-x") 'new-tab)
(global-set-key (kbd "s-X") 'tab-close)

Midnight + cleanbuffer-list

;; Configuring desktop
;;(require 'desktop)
;;  (desktop-save-mode 1)
;;  (defun my-desktop-save ()
;;    (interactive)
;;    ;; Don't call desktop-save-in-desktop-dir, as it prints a message.
;;    (if (eq (desktop-owner) (emacs-pid))
;;        (desktop-save desktop-dirname)))
;;  (add-hook 'auto-save-hook 'my-desktop-save)
;;
;;(setq clean-buffer-list-delay-general 1)
;;
;;;; Configuring midnight
;;(require 'midnight)
;;(midnight-delay-set 'midnight-delay "6:30am")

Packages

Some packages that I use.

Dashboard

A beatiful and usefull dashboard.

(use-package dashboard
  :ensure t
  :defer nil
  :preface
  (defun init-edit ()
	"Edit initialization file."
	(interactive)
	(find-file "~/.emacs.d/init.el"))
  (defun conf-edit ()
	"Edit configuration file."
	(interactive)
	(find-file "~/.emacs.d/config.org"))
  (defun create-scratch-buffer ()
	"Create a scratch buffer."
	(interactive)
	(switch-to-buffer (get-buffer-create "*scratch*"))
	(lisp-interaction-mode))
  :config
  (dashboard-setup-startup-hook)
  (setq dashboard-items '((recents . 25)))
  (setq dashboard-banner-logo-title "Welcome to Emacs!")
  (setq dashboard-startup-banner "~/.emacs.d/img/emacs.png")
  (setq dashboard-center-content t)
  (setq dashboard-show-shortcuts nil)
  (setq dashboard-set-init-info t)
  (setq dashboard-init-info (format "%d packages loaded in %s"
									(length package-activated-list) (emacs-init-time)))
  (setq dashboard-set-footer nil)
  (setq dashboard-set-navigator t)
  (setq dashboard-navigator-buttons
		`(((,nil
			"Open init.el file."
			"Open Emacs initialization file for easy editing."
			(lambda (&rest _) (init-edit))
			'default)
		   (nil
			"Open config.org file."
			"Open Emacs configuration file for easy editing."
			(lambda (&rest _) (conf-edit))
			'default)
		   (nil
			"Open scratch buffer."
			"Switch to the scratch buffer."
			(lambda (&rest _) (create-scratch-buffer))
			'default)))))

PDFTools

Change viewdoc to pdfview with pdftools

(use-package pdf-tools
  :defer t
  :commands (pdf-view-mode pdf-tools-install)
  :mode ("\\.[pP][dD][fF]\\'" . pdf-view-mode)
  :load-path "site-lisp/pdf-tools/lisp"
  :magic ("%PDF" . pdf-view-mode)
  :config
  (pdf-tools-install)
  (define-pdf-cache-function pagelabels)
  :hook ((pdf-view-mode-hook . (lambda () (display-line-numbers-mode -1)))
		     (pdf-view-mode-hook . pdf-tools-enable-minor-modes)))
(use-package pdf-view-restore
  :after pdf-tools
  :config
  (add-hook 'pdf-view-mode-hook 'pdf-view-restore-mode))

;;(use-package org-pdftools
;;  :hook (org-load-hook . org-pdftools-setup-link))

(add-hook 'pdf-view-mode-hook (lambda() (linum-mode -1)))

ORG Mode

Org mode configurantion.

;; Org init
(use-package org
  :config
  (add-hook 'org-mode-hook
			      '(lambda ()
			         (visual-line-mode 1)))
  (setq org-display-inline-images t)
  (setq org-redisplay-inline-images t)
  (setq org-startup-with-inline-images "inlineimages")
  (setq org-directory "~/.emacs.d/org")
  (setq org-agenda-files (list "inbox.org"))
  (global-set-key (kbd "C-<f1>") (lambda()
								                   (interactive)
								                   (outline-show-all))))
(use-package org-bullets
  :config
  (add-hook 'org-mode-hook (lambda () (org-bullets-mode 1))))

(use-package htmlize
  :ensure t)

;; src exec
(org-babel-do-load-languages 'org-babel-load-languages
							               '(
							                 (shell . t)
							                 )
                             )

(setq org-src-fontify-natively t
      org-src-window-setup 'current-window
      org-src-strip-leading-and-trailing-blank-lines t
      org-src-preserve-indentation t
      org-src-tab-acts-natively t)

(require 'org-tempo)

;; And that'll allow you to type "<sh", "<el", "<py", "<conf" followed by tab to create src blocks for those languages, and you can add as many others as you want.
(add-to-list 'org-structure-template-alist '("sh" . "src shell"))
(add-to-list 'org-structure-template-alist '("el" . "src emacs-lisp"))
(add-to-list 'org-structure-template-alist '("py" . "src python"))
(add-to-list 'org-structure-template-alist '("conf" . "src conf"))

;; Org default head
;;(add-to-list 'org-structure-template-alist
;;             '("p" "#+title:\n#+author: b2r1s8@gen2\n#+date:\n#+startup: hidestars odd overview\n\n? "))

Doom-modeline

Default Doom-modeline

(use-package doom-modeline
  :ensure t
  :init (doom-modeline-mode 1))
(setq doom-modeline-height 5)

;; Hide mode-line when is not usefull
(setq doom-hide-modeline-mode t)

;; The limit of the window width.
;; If `window-width' is smaller than the limit, some information won't be displayed.
(setq doom-modeline-window-width-limit fill-column)
;; Whether display the icon for `major-mode'. It respects `doom-modeline-icon'.
(setq doom-modeline-major-mode-icon t)

;; Whether display the colorful icon for `major-mode'.
;; It respects `all-the-icons-color-icons'.
(setq doom-modeline-major-mode-color-icon t)

;; Whether display the icon for the buffer state. It respects `doom-modeline-icon'.
(setq doom-modeline-buffer-state-icon t)

;; Whether display the modification icon for the buffer.
;; It respects `doom-modeline-icon' and `doom-modeline-buffer-state-icon'.
(setq doom-modeline-buffer-modification-icon t)

;; Whether display the buffer encoding.
(setq doom-modeline-buffer-encoding t)

;; If non-nil, only display one number for checker information if applicable.
(setq doom-modeline-checker-simple-format t)

;; Whether display the workspace name. Non-nil to display in the mode-line.
(setq doom-modeline-workspace-name t)

Ace window

This packages make easy to move around windows.

x -> delete window
m -> swap windows
M -> move window
c -> copy window
j -> select buffer
n -> select the previous window
u -> select buffer in the other window
c -> split window fairly, either vertically or horizontally
v -> split window vertically
b -> split window horizontally
o -> maximize current window
? -> show these command bindings

(use-package ace-window
  :ensure t
  :bind (("C-o" . ace-window)))

Which-key

(use-package which-key
  :ensure t
  :diminish which-key-mode
  :init
  (which-key-mode)
  :config
  (setq which-key-idle-delay 0.3))

Swiper

(use-package swiper
  :ensure t
  :bind ("s-s" . 'swiper))

Beacon

(use-package beacon
  :ensure t
  :diminish beacon-mode
  :init
  (beacon-mode 1))

Async

(use-package async
  :ensure t
  :init
  (dired-async-mode 1))

Page-break-lines

(use-package page-break-lines
  :ensure t
  :diminish (page-break-lines-mode visual-line-mode))

Undoo-tree

(use-package undo-tree
  :ensure t
  :diminish undo-tree-mode)

Saveplace

(use-package saveplace
  :defer nil
  :config
  (save-place-mode))

Eldoc

(use-package eldoc
  :diminish eldoc-mode)

Try

(use-package try
  :ensure t)

Auto-complete

(use-package auto-complete
  :ensure t
  :init
  (progn
	(ac-config-default)
	(global-auto-complete-mode t)))

Neotree

(use-package neotree
  :ensure t
  :bind (("C-\\" . 'neotree-toggle))) ;; Ativa a tree

Color-theme-modern

(use-package color-theme-modern
  :ensure t)

Flycheck

(use-package flycheck
  :ensure t
  :init (global-flycheck-mode t))

Recentf

(use-package recentf
  :config
  (recentf-mode t)
  (setq recentf-max-saved-items 500))

Expand region

(use-package expand-region
  :ensure t
  :bind ("C-@" . er/expand-region))

Smoothscrolling

This makes it so C-n-ing and C-p-ing won't make the buffer jump around so much.

(use-package smooth-scrolling
  :ensure t
  :config
  (smooth-scrolling-mode))

Webmode

(use-package web-mode
  :ensure t)

Emmet

According to their website, "Emmet — the essential toolkit for web-developers."

(use-package emmet-mode
  :ensure t
  :commands emmet-mode
  :config
  (add-hook 'html-mode-hook 'emmet-mode)
  (add-hook 'css-mode-hookg 'emmet-mode))

Scratch major mode

Convenient package to create *scratch* buffers that are based on the current buffer's major mode. This is more convienent than manually creating a buffer to do some scratch work or reusing the initial *scratch* buffer.

(use-package scratch
  :ensure t
  :commands scratch)

Shell pop

(use-package shell-pop
  :ensure t
  :bind ("M-<f12>" . shell-pop))

Quickrun

(use-package quickrun
  :defer 10
  :ensure t
  :bind ("C-c r" . quickrun))

terminal-here

(use-package terminal-here
  :ensure t
  :bind (("C-c o t" . terminal-here-launch)
		     ("C-c o p" . terminal-here-project-launch)))

Whitespace

(use-package whitespace)
(require 'whitespace)
(setq whitespace-line-column 80) ;; limit line length
(setq whitespace-style '(face lines-tail))

;; Automatically clean whitespace
(use-package ws-butler
  :hook ((text-mode . ws-butler-mode)
         (prog-mode . ws-butler-mode)))

Ivy

I currently use Ivy, Counsel, and Swiper to navigate around files, buffers, and projects super quickly. Here are some workflow notes on how to best use Ivy:

While in an Ivy minibuffer, you can search within the current results by using S-Space.
To quickly jump to an item in the minibuffer, use C-' to get Avy line jump keys.
To see actions for the selected minibuffer item, use M-o and then press the action's key.
Super useful: Use C-c C-o to open ivy-occur to open the search results in a separate buffer. From there you can click any item to perform the ivy action.

(use-package ivy
  :diminish
  :bind (("C-s" . swiper)
         :map ivy-minibuffer-map
         ("TAB" . ivy-alt-done)
         ("C-f" . ivy-alt-done)
         ("C-l" . ivy-alt-done)
         ("C-j" . ivy-next-line)
         ("C-k" . ivy-previous-line)
         :map ivy-switch-buffer-map
         ("C-k" . ivy-previous-line)
         ("C-l" . ivy-done)
         ("C-d" . ivy-switch-buffer-kill)
         :map ivy-reverse-i-search-map
         ("C-k" . ivy-previous-line)
         ("C-d" . ivy-reverse-i-search-kill))
  :init
  (ivy-mode 1)
  :config
  (setq ivy-use-virtual-buffers t)
  (setq ivy-wrap t)
  (setq ivy-count-format "(%d/%d) ")
  (setq enable-recursive-minibuffers t)

  ;; Use different regex strategies per completion command
  (push '(completion-at-point . ivy--regex-fuzzy) ivy-re-builders-alist) ;; This doesn't seem to work...
  (push '(swiper . ivy--regex-ignore-order) ivy-re-builders-alist)
  (push '(counsel-M-x . ivy--regex-ignore-order) ivy-re-builders-alist)

  ;; Set minibuffer height for different commands
  (setf (alist-get 'counsel-projectile-ag ivy-height-alist) 15)
  (setf (alist-get 'counsel-projectile-rg ivy-height-alist) 15)
  (setf (alist-get 'swiper ivy-height-alist) 15)
  (setf (alist-get 'counsel-switch-buffer ivy-height-alist) 7))

(use-package ivy-hydra
  :defer t
  :after hydra)

(use-package ivy-rich
  :init
  (ivy-rich-mode 1)
  :after counsel
  :config
  (setq ivy-format-function #'ivy-format-function-line)
  (setq ivy-rich-display-transformers-list
        (plist-put ivy-rich-display-transformers-list
                   'ivy-switch-buffer
                   '(:columns
                     ((ivy-rich-candidate (:width 40))
                      (ivy-rich-switch-buffer-indicators (:width 4 :face error :align right)); return the buffer indicators
                      (ivy-rich-switch-buffer-major-mode (:width 12 :face warning))          ; return the major mode info
                      (ivy-rich-switch-buffer-project (:width 15 :face success))             ; return project name using `projectile'
                      (ivy-rich-switch-buffer-path (:width (lambda (x) (ivy-rich-switch-buffer-shorten-path x (ivy-rich-minibuffer-width 0.3))))))  ; return file path relative to project root or `default-directory' if project is nil
                     :predicate
                     (lambda (cand)
                       (if-let ((buffer (get-buffer cand)))
                           ;; Don't mess with EXWM buffers
                           (with-current-buffer buffer
                             (not (derived-mode-p 'exwm-mode)))))))))

(use-package counsel
  :after ivy
  :bind (("M-x" . counsel-M-x)
         ("C-x b" . counsel-ibuffer)
         ("C-x C-f" . counsel-find-file)
         ("C-M-j" . counsel-switch-buffer)
         ("C-M-l" . counsel-imenu)
         :map minibuffer-local-map
         ("C-r" . 'counsel-minibuffer-history))
  :custom
  (counsel-linux-app-format-function #'counsel-linux-app-format-function-name-only)
  :config
  (setq ivy-initial-inputs-alist nil)) ;; Don't start searches with ^

(use-package flx  ;; Improves sorting for fuzzy-matched results
  :after ivy
  :defer t
  :init
  (setq ivy-flx-limit 10000))

(use-package wgrep)

(use-package ivy-posframe
  :disabled
  :custom
  (ivy-posframe-width      115)
  (ivy-posframe-min-width  115)
  (ivy-posframe-height     10)
  (ivy-posframe-min-height 10)
  :config
  (setq ivy-posframe-display-functions-alist '((t . ivy-posframe-display-at-frame-center)))
  (setq ivy-posframe-parameters '((parent-frame . nil)
                                  (left-fringe . 8)
                                  (right-fringe . 8)))
  (ivy-posframe-mode 1))

(use-package prescient
  :after counsel
  :config
  (prescient-persist-mode 1))

(use-package ivy-prescient
  :after prescient
  :config
  (ivy-prescient-mode 1))

;;(dw/leader-key-def
;;  "r"   '(ivy-resume :which-key "ivy resume")
;;  "f"   '(:ignore t :which-key "files")
;;  "ff"  '(counsel-find-file :which-key "open file")
;;  "C-f" 'counsel-find-file
;;  "fr"  '(counsel-recentf :which-key "recent files")
;;  "fR"  '(revert-buffer :which-key "revert file")
;;  "fj"  '(counsel-file-jump :which-key "jump to file"))

Packages config

Configuration for packages

;; Dired
(require 'dired-x)
(setq dired-omit-files "^\\...+$")
(add-hook 'dired-mode-hook (lambda () (dired-omit-mode 1)))
(add-hook 'dired-mode-hook 'auto-revert-mode)
(setq global-auto-revert-non-file-buffers t)
(setq auto-revert-verbose nil)

;; Elpher
(advice-add 'eww-browse-url :around 'elpher:eww-browse-url)

;; eww
(defun elpher:eww-browse-url (original url &optional new-window)
  "Handle gemini links."
  (cond ((string-match-p "\\`\\(gemini\\|gopher\\)://" url)
		     (require 'elpher)
		     (elpher-go url))
		    (t (funcall original url new-window))))

;;; Eshell
(setq eshell-prompt-regexp "^[^αλ\n]*[αλ] ")
(setq eshell-prompt-function
	    (lambda nil
		    (concat
		     (if (string= (eshell/pwd) (getenv "HOME"))
			       (propertize "~" 'face `(:foreground "#99CCFF"))
		       (replace-regexp-in-string
			      (getenv "HOME")
			      (propertize "~" 'face `(:foreground "#99CCFF"))
			      (propertize (eshell/pwd) 'face `(:foreground "#99CCFF"))))
		     (if (= (user-uid) 0)
			       (propertize " α " 'face `(:foreground "#FF6666"))
		       (propertize " λ " 'face `(:foreground "#A6E22E"))))))

(setq eshell-highlight-prompt nil)

(require 'emms-setup)
(emms-all)
(emms-default-players)
(setq emms-source-file-default-directory "~/songs/")
(setq emms-info-asynchronously nil)
(setq emms-playlist-buffer-name "*Music*")

;; ERC
;;(erc :server "irc.freenode.net" :port 6667 :nick "b2r1s8")
;;(setq erc-autojoin-channels-alist
;;      '(("freenode.net" "#gentoo" "#gentoo-chat" "#ratpoison" "#perl" "#monero" "#emacs" "#emacs-beginners" "#emacs-offtopic" "#org-mode")))

22 KiB Raw Blame History Unescape Escape

Emacs Configuration

Personal Information

Sane defaults

Startup Performance

Customizing emacs

Changing how focus work

Alias

Key binds

Functions

Dashboard

Midnight + cleanbuffer-list

Packages

Dashboard

PDFTools

ORG Mode

Doom-modeline

Ace window

Which-key

Swiper

Beacon

Async

Page-break-lines

Undoo-tree

Saveplace

Eldoc

Try

Auto-complete

Neotree

Color-theme-modern

Flycheck

Recentf

Expand region

Smoothscrolling

Webmode

Emmet

Scratch major mode

Shell pop

Quickrun

terminal-here

Whitespace

Ivy

Packages config

22 KiB

Raw Blame History