45 lines
2.3 KiB
EmacsLisp
45 lines
2.3 KiB
EmacsLisp
;;; early-init.el -*- lexical-binding: t; -*-
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;; Emacs 27.1 introduced early-init.el, which is run before init.el, before
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;; package and UI initialization happens, and before site files are loaded.
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;; A big contributor to startup times is garbage collection. We up the gc
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;; threshold to temporarily prevent it from running, then reset it later by
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;; enabling `gcmh-mode'. Not resetting it will cause stuttering/freezes.
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(setq gc-cons-threshold most-positive-fixnum)
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;; In noninteractive sessions, prioritize non-byte-compiled source files to
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;; prevent the use of stale byte-code. Otherwise, it saves us a little IO time
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;; to skip the mtime checks on every *.elc file.
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(setq load-prefer-newer noninteractive)
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;; In Emacs 27+, package initialization occurs before `user-init-file' is
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;; loaded, but after `early-init-file'. Doom handles package initialization, so
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;; we must prevent Emacs from doing it early!
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(setq package-enable-at-startup nil)
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(fset #'package--ensure-init-file #'ignore) ; DEPRECATED Removed in 28
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(unless (or (daemonp) noninteractive)
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(let ((old-file-name-handler-alist file-name-handler-alist))
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;; `file-name-handler-alist' is consulted on each `require', `load' and
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;; various path/io functions. You get a minor speed up by unsetting this.
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;; Some warning, however: this could cause problems on builds of Emacs where
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;; its site lisp files aren't byte-compiled and we're forced to load the
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;; *.el.gz files (e.g. on Alpine).
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(setq-default file-name-handler-alist nil)
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;; ...but restore `file-name-handler-alist' later, because it is needed for
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;; handling encrypted or compressed files, among other things.
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(defun doom-reset-file-handler-alist-h ()
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(setq file-name-handler-alist
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;; Merge instead of overwrite because there may have bene changes to
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;; `file-name-handler-alist' since startup we want to preserve.
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(delete-dups (append file-name-handler-alist
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old-file-name-handler-alist))))
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(add-hook 'emacs-startup-hook #'doom-reset-file-handler-alist-h)))
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;; Ensure Doom is running out of this file's directory
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(setq user-emacs-directory (file-name-directory load-file-name))
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;; Load the heart of Doom Emacs
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(load (concat user-emacs-directory "core/core") nil 'nomessage)
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