emacs-config/oni-core.el

;;; oni-core.el --- Core Emacs configuration         -*- lexical-binding: t; -*-

;; Copyright (C) 2019  Tom Willemse

;; Author: Tom Willemse <tom@ryuslash.org>
;; Keywords: local
;; Version: 2021.0715.222725
;; Package-Requires: (oni-data-dir oni-embrace oni-hydra expand-region multiple-cursors gcmh diminish ws-butler which-key insert-char-preview dashboard)

;; 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 <https://www.gnu.org/licenses/>.

;;; Commentary:

;; Core Emacs configuration, doesn't need any requires from within
;; Emacs. These settings don't seem to go anywhere else. Add the following to
;; your init file in case you want to use this configuration:
;;
;;     (require 'oni-core)

;;; Code:

(require 'diminish)
(require 'gcmh)
(require 'hydra)
(require 'oni-data-dir)
(require 'recentf)
(require 'which-key)
(require 'ws-butler)
(require 'auth-source)

(defconst oni-core--auto-save-directory (oni-data-dir-locate "auto-save-files/")
  "Directory where auto-saves go.")

(defalias 'yes-or-no-p 'y-or-n-p)

(defvar oni-core--recentf-idle-timer nil
  "Internal variable keeping track of a timer started for ‘recentf-save-list’.")

(defun oni-core--switch-newline-keys ()
  "Switch the ‘C-j’ and ‘RET’ keys in the local buffer."
  (if electric-indent-mode
      (progn
        (local-set-key (kbd "C-j") 'newline)
        (local-set-key (kbd "RET") 'electric-newline-and-maybe-indent))
    (local-unset-key (kbd "C-j"))
    (local-unset-key (kbd "RET"))))

(defun oni-core--ensure-autosave-directory-exists ()
  "Create the autosave directory if doesn't exist."
  (mkdir oni-core--auto-save-directory t))

(defun oni-core-move-beginning-of-dwim ()
  "Move to beginning of line either after indentation or before."
  (interactive)
  (let ((start (point)))
    (back-to-indentation)
    (unless (/= start (point))
      (move-beginning-of-line 1))))

(defun oni-core-move-end-of-dwim ()
  "Move to end of line, either before any comments or after."
  (interactive)
  (let ((start (point))
        (eolpos (line-end-position)))
    (beginning-of-line)
    (if (and comment-start
             (not (looking-at (regexp-quote comment-start)))
             (comment-search-forward eolpos t))
        (progn
          (search-backward-regexp (concat "[^ \t" comment-start "]"))
          (forward-char)
          (when (or (bolp)
                    (= start (point)))
            (end-of-line)))
      (end-of-line))))

;;; From Bastien Guerry’s Emacs configuraiton:
;;; https://github.com/bzg/dotemacs/blob/master/emacs.org
(defun oni-core-unfill-paragraph ()
  "Make a multi-line paragraph into a single line of text."
  (interactive)
  (let ((fill-column (point-max)))
    (fill-paragraph nil)))

(defun oni-core-recentf-save-list-silently ()
  "Call ‘recentf-save-list’ but without showing a message about it."
  (let ((inhibit-message t))
    (recentf-save-list)))

(defhydra oni-sort-and-align-hydra (:color teal :hint nil)
  "
     ^Sort^
^^--------------
_l_: Lines
_p_: Paragraph
_s_: String list"
  ("l" sort-lines)
  ("p" (save-excursion
         (sort-lines
          nil
          (progn (start-of-paragraph-text) (point))
          (progn (end-of-paragraph-text) (point)))))
  ("s" (sort-regexp-fields
        nil
        (rx "\"" (one-or-more (not "\"")) "\"")
        (rx (one-or-more (not "\"")))
        (region-beginning)
        (region-end))))

(add-to-list 'auto-save-file-name-transforms
	         `(".*" ,oni-core--auto-save-directory t)
	         :append)

(setq backup-directory-alist
      `((".*" . ,(oni-data-dir-locate "backup-files"))))

(setq auto-save-list-file-prefix
      (oni-data-dir-locate "auto-save-list/.saves-"))

(setq abbrev-file-name (oni-data-dir-locate "abbrev_defs"))

(setq recentf-save-file (oni-data-dir-locate "recentf"))

;;; Get rid of the default help tooltip on the mode-line.
(setq mode-line-default-help-echo nil)

(setq user-full-name "Tom Willemse"
      user-mail-address "tom@ryuslash.org")

(setq delete-old-versions t)
(setq kept-new-versions 20)
(setq kept-old-versions 20)
(setq vc-make-backup-files t)
(setq version-control t)
(setq require-final-newline t)
(setq sentence-end-double-space nil)
(setq inhibit-startup-screen t)
(setq electric-pair-skip-whitespace 'chomp)
(setq fit-window-to-buffer-horizontally t)

(require 'dashboard)
(setq dashboard-footer-messages
      '("Play more in order to learn more"
        "Learn from similarities, unlearn from differences"
        "Explore, invent, and apply in your environment - safely"
        "See without judging and then act"
        "Give yourself permission to fail; it’s the path to success"
        "Groove your mind for success"
        "Learn to focus"
        "Make thinking time"
        "Use a wiki to manage information and knowledge"
        "Establish rules of engagement to manage interruptions"
        "Send less email, and you’ll receive less email"
        "Choose your own tempo for an email conversation"
        "Mask interrupts to maintain focus"
        "Use multiple monitors to avoid context switching"
        "Optimize your personal workflow to maximize context"
        "Grab the wheel. You can’t steer on autopilot"))
(dashboard-setup-startup-hook)
(setq initial-buffer-choice (lambda () (get-buffer-create "*dashboard*")))

;; Increase the threshold for garbage collection for increased performance.
;; Apparently there are some (lsp-mode for example) packages that generate a lot
;; of garbage.
(setq gc-cons-threshold 100000000)

;;; Remove ~/.authinfo from the auth sources since it’s an unencripted file and
;;; I don’t want to accidentally store anything in there.
(setq auth-sources
      (cons "secrets:Login"
            (remove "~/.netrc"
                    (remove "~/.authinfo" auth-sources))))

(setq read-mail-command 'gnus)

(setq-default indent-tabs-mode nil)
(setq-default tab-width 4)
(setq-default truncate-lines t)
(setq-default fill-column 80)

(add-hook 'before-save-hook 'time-stamp)
(add-hook 'electric-indent-local-mode-hook #'oni-core--switch-newline-keys)
(add-hook 'minibuffer-setup-hook 'electric-pair-local-mode)
(add-hook 'prog-mode-hook 'goto-address-prog-mode)
(add-hook 'auto-save-hook #'oni-core--ensure-autosave-directory-exists)
(add-hook 'after-save-hook 'executable-make-buffer-file-executable-if-script-p)

(global-set-key (kbd "C-M-SPC") 'er/expand-region)
(global-set-key (kbd "C-S-b") 'windmove-left)
(global-set-key (kbd "C-S-f") 'windmove-right)
(global-set-key (kbd "C-S-n") 'windmove-down)
(global-set-key (kbd "C-S-p") 'windmove-up)
(global-set-key (kbd "C-c (") 'embrace-commander)
(global-set-key (kbd "C-c q") #'oni-core-unfill-paragraph)
(global-set-key (kbd "C-c s") #'oni-sort-and-align-hydra/body)
(global-set-key (kbd "C-c l") 'imenu)
(global-set-key (kbd "C-x C-b") 'ibuffer-jump)
(global-set-key (kbd "C-x M-f") 'ffap)
(global-set-key (kbd "M-+") 'mc/mark-next-like-this)
(global-set-key [remap insert-char] 'insert-char-preview)
(global-set-key [remap move-beginning-of-line] #'oni-core-move-beginning-of-dwim)
(global-set-key [remap move-end-of-line] #'oni-core-move-end-of-dwim)

(global-set-key (kbd "C-<left>") 'winner-undo)
(global-set-key (kbd "C-<right>") 'winner-redo)

(unless oni-core--recentf-idle-timer
  (setq oni-core--recentf-idle-timer
        (run-with-idle-timer 10 t #'oni-core-recentf-save-list-silently)))

(with-eval-after-load 'gcmh (diminish 'gcmh-mode))
(with-eval-after-load 'ws-butler (diminish 'ws-butler-mode))
(with-eval-after-load 'which-key (diminish 'which-key-mode))

(electric-indent-mode -1)
(winner-mode)
(recentf-mode)
(gcmh-mode)
(ws-butler-global-mode)
(which-key-mode)
(auto-insert-mode)

(add-to-list 'display-buffer-alist
             `(,(rx string-start
                    "*" (any ?h ?H) "elp")
               display-buffer-in-side-window
               (side . bottom)
               (slot . 0)
               (window-height . 0.33)))

(when (eql system-type 'windows-nt)
  (add-to-list 'load-path (locate-user-emacs-file "vendor/p4-vc"))
  (add-to-list 'exec-path "c:/Program Files/Git/bin")
  (add-to-list 'exec-path "C:/Program Files/Git/usr/bin")
  (add-to-list 'exec-path "c:/cygwin64/bin")

  (setq delete-by-moving-to-trash t)

  (setq-default buffer-file-coding-system 'utf-8-unix))

(provide 'oni-core)
;;; oni-core.el ends here