FG42/core/fg42.el

100 lines
3.5 KiB
EmacsLisp

;;; FG42 --- The mighty editor for the emacsians -*- lexical-binding: t; -*-
;;
;; Copyright (c) 2010-2023 Sameer Rahmani <lxsameer@gnu.org>
;;
;; Author: Sameer Rahmani <lxsameer@gnu.org>
;; URL: https://devheroes.codes/FG42/FG42
;; Version: 3.0.0
;;
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;
;;; Commentary:
;;; Code:
(require 'fg42/core)
(require 'fg42/utils)
(defvar fg42/-gc-cons-threshold 16777216
"Value of GC threshold of FG42.")
(defvar fg42/initialized nil
"A variable that indicates whether FG42 is passed initialization.")
(defun defer-garbage-collection ()
"Disable garbage collection."
(setq gc-cons-threshold fg42/-gc-cons-threshold))
(defun restore-garbage-collection ()
"Restore garbage collection to it's default value."
(run-at-time
1 nil (lambda () (setq gc-cons-threshold most-positive-fixnum))))
(defun fg42/initialize ()
"Initialize FG42 after the Emacs window is rendered by loading the user init file."
;; (fg42/-startup-optimization)
(require 'fpkg/core)
(fpkg/initialize)
(when (file-exists-p user-init-file)
(require 'fg42/cube)
(load user-init-file))
(add-hook 'emacs-startup-hook
(lambda ()
(run-hooks 'fg42/-cubes-body-hook)
(run-hooks 'fg42/after-cubes-setup-hook)
(run-hooks 'fg42/after-init-hook)
(run-hooks 'fg42/after-initializing-theme-hook)
(run-hooks 'fg42/ui-hook)
(setq fg42/initialized t))))
(defun fg42/-startup-optimization ()
"Optimized FG42 startup."
;; by setting gc threshold to the largest number
;; Emacs can understand we are basically disabling it :).
(setq gc-cons-threshold most-positive-fixnum
gc-cons-percentage 0.6)
;; after initilization phase restore cons threshold to normal
(add-hook 'emacs-startup-hook
(lambda ()
(setq gc-cons-threshold fg42/-gc-cons-threshold ; 16mb
gc-cons-percentage 0.1)))
;; disable auto initilization of package.el
(setq package-enable-at-startup nil)
;; disable gc when we are in minibuffer using the same method we
;; use for initilization time
(add-hook 'minibuffer-setup-hook #'defer-garbage-collection)
;; just enable gc when exiting minibuffer
(add-hook 'minibuffer-exit-hook #'restore-garbage-collection)
;; we dont need Emacs to check every file type and look for file
;; handlers when we are initializing so we backup the original
;; value and set it to nil
(setq --file-name-handler-alist file-name-handler-alist)
(setq file-name-handler-alist nil)
;; after initialization we can restore that file-name-handler-alist
;; to original value.
(add-hook 'emacs-startup-hook
(lambda ()
(setq file-name-handler-alist
--file-name-handler-alist)))
;; initial mode for emacs can be fundamental mode we have nothing to lose
(setq initial-major-mode 'fundamental-mode))
(provide 'fg42)
;;; fg42.el ends here