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;;; early-init.el --- Emacs early init file -*- lexical-binding: t; -*-
(defmacro x-set (&rest body)
(declare (indent 0))
(unless (zerop (% (length body) 2))
(error "Uneven number of variable+value pairs"))
(macroexp-progn
(mapcar
(lambda (pair)
`(customize-set-variable ,(macroexp-quote (car pair)) ,(cadr pair)))
(seq-split body 2))))
(defconst 1-KiB 1024
"The number of bytes in 1 kibibyte")
(defconst 1-MiB (* 1-KiB 1024)
"The number of bytes in 1 mebibyte.")
(defconst 1-GiB (* 1-MiB 1024)
"The number of bytes in 1 gibibyte.")
(defconst x-cache-directory
(expand-file-name
"emacs"
(or (getenv "XDG_CACHE_HOME")
(expand-file-name ".cache" (getenv "HOME"))))
"The XDG-conformant cache directory that Emacs should use.")
(defconst x-config-directory
(expand-file-name
"emacs"
(or (getenv "XDG_CONFIG_HOME")
(expand-file-name ".config" (getenv "HOME"))))
"The XDG-conformant config directory that Emacs should use.")
(defconst x-data-directory
(expand-file-name
"emacs"
(or (getenv "XDG_DATA_HOME")
(expand-file-name ".local/share" (getenv "HOME"))))
"The XDG-conformant data directory that Emacs should use.")
;; Create standard Emacs directories
(dolist (dir (list x-cache-directory
x-config-directory
x-data-directory))
(make-directory dir 'parents))
(x-set
user-emacs-directory x-cache-directory
auto-save-list-file-prefix (expand-file-name
"auto-save-list/" x-cache-directory)
backup-directory-alist `(("." . ,(expand-file-name
"backups" x-cache-directory))))
(push x-config-directory load-path)
(when (native-comp-available-p)
(startup-redirect-eln-cache
(expand-file-name (expand-file-name "eln/" x-cache-directory))))
;; Temporarily set some variables to improve startup performance. We
;; undo this in a following hook
(let ((saved-file-name-handler-alist file-name-handler-alist)
(saved-vc-handled-backends vc-handled-backends))
(x-set
gc-cons-threshold most-positive-fixnum
gc-cons-percentage .5
file-name-handler-alist nil
vc-handled-backends nil)
(add-hook 'emacs-startup-hook
(lambda ()
(x-set
gc-cons-threshold (* 8 1-MiB)
gc-cons-percentage 0.1
file-name-handler-alist saved-file-name-handler-alist
vc-handled-backends saved-vc-handled-backends))))
(x-set read-process-output-max
(let ((pipe-size-file "/proc/sys/fs/pipe-max-size"))
(if (file-exists-p pipe-size-file)
(with-temp-buffer
(insert-file-contents pipe-size-file)
(number-at-point))
1-MiB)))
(menu-bar-mode -1)
(scroll-bar-mode -1)
(tool-bar-mode -1)
(x-set
frame-resize-pixelwise t
frame-inhibit-implied-resize t
frame-title-format '("%b")
ring-bell-function #'ignore
use-dialog-box t
use-file-dialog nil
use-short-answers t
inhibit-splash-screen t
inhibit-startup-screen t
inhibit-x-resources t
inhibit-startup-echo-area-message user-login-name
inhibit-startup-buffer-menu t)
;; Avoid the initial flash of white light when starting emacs
(setq mode-line-format nil)
(set-face-attribute 'default nil
:background "#2B303B"
:foreground "#C5C8C6")
(set-face-attribute 'mode-line nil
:background "#2B303B"
:foreground "#C5C8C6"
:box 'unspecified)
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