summary refs log tree commit diff stats
path: root/early-init.el
blob: adc876ab6d194648bae8b5a6b5ab4f4619766f91 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
;;; early-init.el -*- lexical-binding: t; coding: utf-8-unix -*-
;; Author: Case Duckworth <acdw@acdw.net>
;; Created: Sometime during Covid-19, 2020
;; Keywords: configuration
;; URL: https://tildegit.org/acdw/emacs

;; This file is NOT part of GNU Emacs.

;;; License:
;; Everyone is permitted to do whatever with this software, without
;; limitation.  This software comes without any warranty whatsoever,
;; but with two pieces of advice:
;; - Don't hurt yourself.
;; - Make good choices.

;;; Comentary:
;; Starting with Emacs 27.1, `early-init' is sourced before `package'
;; or any frames.  So those are the settings I run in this file.

;;; Code:

;;; Add `acdw.el'
(push (expand-file-name "lisp/" user-emacs-directory)
      load-path)
(require 'acdw)

;;; Speed up init
;; see doom-emacs, et al.

(defvar orig-file-name-handler-alist file-name-handler-alist
  "The original value of `file-name-handler-alist' will be restored
  after init.")

(setq file-name-handler-alist nil)
(acdw/gc-disable)

(add-hook 'after-init-hook
          (defun hook--post-init-reset ()
            "Reset `gc-cons-threshold', `gc-cons-percentage', and
  `file-name-handler-alist' to their defaults after init."
            (acdw/gc-enable)
            (dolist (handler file-name-handler-alist)
              (add-to-list 'orig-file-name-handler-alist handler))
            (setq file-name-handler-alist orig-file-name-handler-alist)))

;;; Frame settings

(setq default-frame-alist		; Remove most UI
      `((tool-bar-lines . 0)		; No tool bar
        (menu-bar-lines . 0)		; No menu bar
        (vertical-scroll-bars)		; No scroll bars
        (horizontal-scroll-bars)	; ... at all
        (width . 84)			; A /little/ wider than
                                        ; `fill-column' (set later)
        (height . 30)
        (left-fringe . 8)		; Width of fringes
        (right-fringe . 8)		; (8 is default)
        (font . ,(pcase acdw/system
                   (:home "DejaVu Sans Mono 10")
                   (:work "Consolas 10"))))
      frame-inhibit-implied-resize t	; Don't resize randomly
      frame-resize-pixelwise t	; Resize by pixels, not chars
      )

(defun hook--disable-ui-modes ()
  "Disable frame UI using modes, for toggling later."
  (dolist (mode ;; each mode is of the form (MODE . FRAME-ALIST-VAR)
            '((tool-bar-mode . tool-bar-lines)
              (menu-bar-mode . menu-bar-lines)
              (scroll-bar-mode . vertical-scroll-bars)
              (horizontal-scroll-bar-mode . horizontal-scroll-bars)
              ))
    (let ((setting (alist-get (cdr mode) default-frame-alist)))
      (when (or (not setting)
                (= 0 setting))
        (funcall (car mode) -1)))))

(add-hook 'after-init-hook #'hook--disable-ui-modes)

;;; Bootstrap package manager (`straight.el')

;; 1. Update `exec-path'.
(dolist (path (list (expand-file-name "bin" user-emacs-directory)
                    (expand-file-name "~/bin")
                    (expand-file-name "~/.local/bin")
                    (expand-file-name "~/usr/bin")
                    (expand-file-name "~/cmd")
                    (expand-file-name "~/mingw64/bin")))
  (when (file-exists-p path)
    (add-to-list 'exec-path path :append)))

;; 1.5. Update $PATH to reflect changes.
(setenv "PATH" (mapconcat #'identity exec-path path-separator))

;; 2. Set `package' and `straight' variables.
(setq package-enable-at-startup nil
      package-quickstart nil
      straight-host-usernames '((github . "duckwork")
                                (gitlab . "acdw"))
      straight-base-dir acdw/dir)

;; 3. Bootstrap `straight'.
(defvar bootstrap-version)
(let ((bootstrap-file
       (expand-file-name
        "straight/repos/straight.el/bootstrap.el"
        straight-base-dir))
      (bootstrap-version 5))
  (unless (file-exists-p bootstrap-file)
    (with-current-buffer
        (url-retrieve-synchronously
         (concat "https://raw.githubusercontent.com/"
                 "raxod502/straight.el/develop/install.el")
         'silent 'inhibit-cookies)
      (goto-char (point-max))
      (eval-print-last-sexp)))
  (load bootstrap-file nil 'nomessage))

;;; Message startup time for profiling

(defun hook--message-startup-time ()
  "Show Emacs's startup time in the message buffer.  For profiling."
  (message "Emacs ready in %s with %d garbage collections."
           (format "%.2f seconds"
                   (float-time (time-subtract after-init-time
                                              before-init-time)))
           gcs-done))

(add-hook 'emacs-startup-hook #'hook--message-startup-time)

;;; Install `no-littering', pointing both directories at `acdw/dir'.  This will
;;; take care of the packages I don't care about configuring.

(straight-use-package 'no-littering)
(setq no-littering-etc-directory acdw/dir
      no-littering-var-directory acdw/dir)
(require 'no-littering)