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;;; FG42 --- a simple package manager for FG42 -*- lexical-binding: t; -*-
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;; Copyright (C) 2010-2018 lxsameer
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;; Author: Sameer Rahmani <lxsameer@gnu.org>
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;; Keywords: lisp fg42 IDE package manager
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;; Version: 2.31
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;; 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:
;; An Editor/IDE bundle base on Lovely Gnu/Emacs to make your life easier
;;; Code:
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( defvar fg42-home ( getenv " FG42_HOME " )
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" The pass to fg42-home. " )
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( defvar fg42-tmp ( concat fg42-home " /tmp " ) )
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( defvar fg42-before-initialize-hook nil
" This hook will be called before FG42 initilization process. " )
( defvar fg42-after-initialize-hook nil
" This hook will be called after FG42 initilization process. " )
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( defvar fg42-gc-cons-threshold 16777216 " Value of GC threshold of FG42. " )
( 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--startup-optimization ( )
" Optimize FG42 startup. "
( setq gc-cons-threshold most-positive-fixnum ; 2^61 bytes
gc-cons-percentage 0.6 ) ;; by setting gc threshold to the largest number Emacs can understand we are basically disabling it :).
( add-hook 'emacs-startup-hook
( lambda ( )
( setq gc-cons-threshold fg42-gc-cons-threshold ; 16mb
gc-cons-percentage 0.1 ) ) ) ;; after initilization phase restore cons threshold to normal
( setq package-enable-at-startup nil ) ;; disable auto initilization of package.el
( add-hook 'minibuffer-setup-hook #' defer-garbage-collection ) ;; disable gc when we are in minibuffer using the same method we use for initilization time
( add-hook 'minibuffer-exit-hook #' restore-garbage-collection ) ;; just enable gc when exiting minibuffer
( defvar --file-name-handler-alist file-name-handler-alist ) ;; 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 nil )
( add-hook 'emacs-startup-hook
( lambda ( )
( setq file-name-handler-alist --file-name-handler-alist ) ) ) ;; after initialization we can restore that file-name-handler-alist to original value.
( setq initial-major-mode 'fundamental-mode ) ;; initial mode for emacs can be fundamental mode we have nothing to lose
)
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( require 'fpkg )
( require 'fg42/base )
( require 'fg42/splash )
( require 'fg42/race )
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( require 'fg42/utils )
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( defun fg42-initialize ( )
" Initialize FG42 editor. "
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( fg42--startup-optimization )
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( run-hooks 'fg42-before-initialize-hook )
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( mkdir fg42-tmp t )
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( setq package-user-dir ( concat fg42-home " /packages " ) )
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( fpkg-initialize )
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( initialize-extensions )
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( run-hooks 'fg42-after-initialize-hook )
( message " startup time: %s " ( - ( float-time ) start ) ) )
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( provide 'fg42 )
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;; fg42.el ends here