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;;; -*- lexical-binding: t; -*-
;; Hide those ugly tool bars:
(tool-bar-mode 0)
(scroll-bar-mode 0)
(menu-bar-mode 0)
(add-hook 'after-make-frame-functions
(lambda (frame) (scroll-bar-mode 0)))
;; Don't do any annoying things:
(setq ring-bell-function 'ignore)
(setq initial-scratch-message "")
;; Usually emacs will run as a proper GUI application, in which case a few
;; extra settings are nice-to-have:
(when window-system
(setq frame-title-format '(buffer-file-name "%f" ("%b")))
(mouse-wheel-mode t)
(blink-cursor-mode -1))
;; Configure Emacs fonts.
(let ((font (format "JetBrains Mono-%d" 12)))
(setq default-frame-alist `((font . ,font)))
(set-frame-font font t t))
;; Configure the modeline
;; Implements a mode-line warning if there are any logged in TTY
;; sessions apart from the graphical one.
;;
;; The status is only updated once every 30 seconds, as it requires
;; shelling out to some commands (for now).
(defun list-tty-sessions ()
"List all logged in tty sessions, except tty7 (graphical)"
(let ((command "who | awk '{print $2}' | grep -v tty7"))
(-filter (lambda (s) (not (string-empty-p s)))
(s-lines
(s-trim (let ((default-directory "/"))
(shell-command-to-string command)))))))
(defvar cached-tty-sessions (cons (time-convert nil 'integer) (list-tty-sessions))
"Cached TTY session value to avoid running the command too often.")
;; TODO(tazjin): add this to the modeline
(defun get-cached-tty-sessions ()
(let ((time ))
(when (< 30
(- (time-convert nil 'integer)
(car cached-tty-sessions)))
(setq cached-tty-sessions
(cons (time-convert nil 'integer) (list-tty-sessions)))))
(cdr cached-tty-sessions))
;; Auto refresh buffers
(global-auto-revert-mode 1)
;; Use clipboard properly
(setq select-enable-clipboard t)
;; Show in-progress chords in minibuffer
(setq echo-keystrokes 0.1)
;; Show column numbers in all buffers
(column-number-mode t)
(defalias 'yes-or-no-p 'y-or-n-p)
(defalias 'auto-tail-revert-mode 'tail-mode)
;; Style line numbers (shown with M-g g)
(setq linum-format
(lambda (line)
(propertize
(format (concat " %"
(number-to-string
(length (number-to-string
(line-number-at-pos (point-max)))))
"d ")
line)
'face 'linum)))
;; Display tabs as 2 spaces
(setq tab-width 2)
;; Don't wrap around when moving between buffers
(setq windmove-wrap-around nil)
;; Don't show me all emacs warnings immediately. Unfortunately this is
;; not very granular, as emacs displays most of its warnings in the
;; `emacs' "category", but without it every time I
;; fullscreen/unfullscreen the warning buffer destroys my layout.
;;
;; Warnings suppressed by this are still logged to the warnings
;; buffer.
(setq warning-suppress-types '((emacs)))
(provide 'look-and-feel)
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