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;;; early-init.el -*- lexical-binding: t; coding: utf-8-unix -*-
;; Author: Case Duckworth <(rot13-string "npqj@npqj.arg")>
;; 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)
(require 'acdw-frame)

;;; 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 . ,(acdw/system
                  (:home "DejaVu Sans Mono 10")
                  (:work "Consolas 12")
                  (:other "monospace 10"))))
      frame-inhibit-implied-resize t	; Don't resize randomly
      frame-resize-pixelwise t          ; Resize by pixels, not chars
      inhibit-x-resources t             ; Don't load ~/.Xresources
      )

(add-hook 'after-init-hook
          (defun after-init@disable-ui-modes ()
            "Disable UI modes after init.
I already disable them from the `default-frame-alist' for speed
and anti-flickering reasons, but this function allows running,
say, `tool-bar-mode' once to toggle the tool bar back on."
            (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)
                          (zerop setting))
                  (funcall (car mode) -1))))))

(add-hook 'after-make-frame-functions
          (defun after-make-frame@setup (&rest args)
            (ignore args)
            (let ((monospace-faces
                   ;; (acdw/system
                   ;;  (:work '((:font "Consolas" :height 110)
                   ;;           (:font "DejaVu Sans Mono" :height 110)
                   ;;           (:font "monospace" :height 110)))
                   ;;  (_ '((:font "DejaVu Sans Mono" :height 100)
                   ;;       (:font "Consolas" :height 100)
                   ;;       (:font "monospace" :height 100))))
                   '((:font "Fantasque Sans Mono" :height 110)
                     (:font "Go Mono" :height 100)
                     (:font "DejaVu Sans Mono" :height 110)
                     (:font "monospace" :height 100))))
              (acdw/set-first-face-attribute 'default monospace-faces)
              (acdw/set-first-face-attribute 'fixed-pitch monospace-faces)
              (acdw/set-first-face-attribute 'variable-pitch
                                             '((:font "Comic Neue" :height 125)
                                               (:font "Inter" :height 120)
                                               (:font "Go" :height 120)
                                               (:font "sans-serif"
                                                      :height 100))))
            (acdw/set-emoji-fonts "Noto Color Emoji"
                                  "Noto Emoji"
                                  "Segoe UI Emoji"
                                  "Apple Color Emoji"
                                  "FreeSans"
                                  "FreeMono"
                                  "FreeSerif"
                                  "Unifont"
                                  "Symbola")
            (acdw/set-fringes '((left-curly-arrow [#b01100000
                                                   #b00110000
                                                   #b00011000
                                                   #b00001100]
                                                  4 8 center)
                                (right-curly-arrow [#b00000011
                                                    #b00000110
                                                    #b00001100
                                                    #b00011000]
                                                   4 8 center)
                                (left-arrow [#b01100000
                                             #b01010000]
                                            2 8 (top t))
                                (right-arrow [#b00000011
                                              #b00000101]
                                             2 8 (top t))))
            (setq indicate-empty-lines nil
                  indicate-buffer-boundaries '((top . right)
                                               (bottom . right)))
            (custom-set-faces '(fringe ((t (:foreground "dim gray")))))))
(add-hook 'server-after-make-frame-hook #'after-make-frame@setup)

;; I have this here because ... the first frame doesn't ? run ? the hook ???
(add-function :after after-focus-change-function
              (defun after-focus-change@first-frame-setup (&rest args)
                (ignore args)
                (after-make-frame@setup)
                (remove-function after-focus-change-function
                                 #'after-focus-change@first-frame-setup)))

;;; 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")
                    (expand-file-name "~/clisp-2.49"))
              exec-path)
  (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)
      straight-check-for-modifications '(check-on-save find-when-checking))

;; 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))

;; Helper package, good commands here.
(require 'straight-x)

;; Appendix.  Get rid of a dumb alias.
;; straight-ಠ_ಠ-mode really slows down all minibuffer completion functions.
;; Since it's a (rarely-used, even) alias anyway, I just define it back to nil.
;; By the way, the alias is `straight-package-neutering-mode'.
(defalias 'straight-ಠ_ಠ-mode nil)

;;; Message startup time for profiling
;; This just redefines the Emacs function
;; `display-startup-echo-area-message', so no hooks needed.
(defun display-startup-echo-area-message ()
  "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))

;;; Early-loaded packages
;; These packages are here because they need to be loaded /before/
;; everything else in init.el.

(straight-use-package '(setup :host nil :repo "https://git.sr.ht/~pkal/setup"))
(require 'setup)
(require 'acdw-setup)

(setup (:straight no-littering)
  (:option no-littering-etc-directory (acdw/dir)
           no-littering-var-directory (acdw/dir))
  (require 'no-littering))

(setup (:straight el-patch))

;;; early-init.el ends here