dotfiles/emacs.d/init.el

;;;; Startup

(setq inhibit-splash-screen t
      inhibit-startup-echo-area-message t
      initial-scratch-message ""	; I like things empty.
      initial-major-mode 'text-mode)	; I'm usually not writing elisp.

;; Base

(setq ring-bell-function 'ignore) ; Disable beep & flash
(blink-cursor-mode 0)

;; No scroll bar
(when (boundp 'scroll-bar-mode)
  (scroll-bar-mode -1))

;; Disable toolbar
(when (display-graphic-p)
  (tool-bar-mode -1))

;; smoother scrolling
(setq scroll-margin 0
scroll-conservatively 9999
scroll-step 1)


;; Line settings and indicators
(setq visual-line-fringe-indicators '(left-curly-arrow right-curly-arrow))
(setq-default left-fringe-width nil)
(setq-default indicate-empty-lines t)

;; All yes or no prompts are y or n
(defalias 'yes-or-no-p 'y-or-n-p)

;; Never follow symlinks
(setq vc-follow-symlinks nil)

;;; Leave the OS clipboard alone (use evil's "+ and "* instead)
; Don't copy and paste to the clipboard
(setq select-enable-clipboard nil)
(setq x-select-enable-clipboard nil)
; Don't save to the clipboard on exit
(setq x-select-enable-clipboard-manager nil)

;; Text and Notes
(setq sentence-end-double-space nil)

;; Save minibar history
(savehist-mode 1)
(setq savehist-additional-variables '(kill-ring search-ring regexp-search-ring))

;; Always show matching parens
(show-paren-mode t)

;; Backups (from https://stackoverflow.com/questions/151945/how-do-i-control-how-emacs-makes-backup-files/20824625#20824625)
(setq version-control t     ;; Use version numbers for backups.
      kept-new-versions 10  ;; Number of newest versions to keep.
      kept-old-versions 0   ;; Number of oldest versions to keep.
      delete-old-versions t ;; Don't ask to delete excess backup versions.
      backup-by-copying t)  ;; Copy all files, don't rename them.

(setq vc-make-backup-files t)   ;; Backup versioned files

;; Default and per-save backups go here:
(setq backup-directory-alist '(("" . "~/.emacs.d/backups/per-save")))

(defun force-backup-of-buffer ()
  ;; Make a special "per session" backup at the first save of each
  ;; emacs session.
  (when (not buffer-backed-up)
    ;; Override the default parameters for per-session backups.
    (let ((backup-directory-alist '(("" . "~/.emacs.d/backups/per-session")))
          (kept-new-versions 3))
      (backup-buffer)))
  ;; Make a "per save" backup on each save.  The first save results in
  ;; both a per-session and a per-save backup, to keep the numbering
  ;; of per-save backups consistent.
  (let ((buffer-backed-up nil))
    (backup-buffer)))

(add-hook 'before-save-hook  'force-backup-of-buffer)

;; Autosave files
(setq auto-save-file-name-transforms
          `((".*" , "~/.emacs.d/backups/auto-saves" t)))

;; remember cursor position
(toggle-save-place-globally)

;; Search all buffers
(defun grep-search-all-buffers (regexp)
  (interactive "sRegexp: ")
  (multi-occur-in-matching-buffers "." regexp t))

;;; Spelling

;; map ]s and [s to next and previously wrong word

;; move point to previous error
;; based on code by hatschipuh at
;; http://emacs.stackexchange.com/a/14912/2017
(defun flyspell-goto-previous-error (arg)
  "Go to arg previous spelling error."
  (interactive "p")
  (while (not (= 0 arg))
    (let ((pos (point))
          (min (point-min)))
      (if (and (eq (current-buffer) flyspell-old-buffer-error)
               (eq pos flyspell-old-pos-error))
          (progn
            (if (= flyspell-old-pos-error min)
                ;; goto beginning of buffer
                (progn
                  (message "Restarting from end of buffer")
                  (goto-char (point-max)))
              (backward-word 1))
            (setq pos (point))))
      ;; seek the next error
      (while (and (> pos min)
                  (let ((ovs (overlays-at pos))
                        (r '()))
                    (while (and (not r) (consp ovs))
                      (if (flyspell-overlay-p (car ovs))
                          (setq r t)
                        (setq ovs (cdr ovs))))
                    (not r)))
        (backward-word 1)
        (setq pos (point)))
      ;; save the current location for next invocation
      (setq arg (1- arg))
      (setq flyspell-old-pos-error pos)
      (setq flyspell-old-buffer-error (current-buffer))
      (goto-char pos)
      (if (= pos min)
          (progn
            (message "No more miss-spelled word!")
            (setq arg 0))
        ))))


(add-to-list 'load-path (expand-file-name "packages" user-emacs-directory))
(require 'packages)


;;;; System-specific configs

(defun win-setup ()
    (add-to-list 'exec-path "C:/Program Files (x86)/Aspell/bin/")
    (setq ispell-program-name "aspell")

    (defun cmd ()
      (interactive)
	(make-comint-in-buffer "cmd" nil "cmd" nil)
	(switch-to-buffer "*cmd*")))

(defun linux-setup ())

(cond ((eq system-type 'windows-nt) (win-setup))
      ((eq system-type 'gnu/linux) (linux-setup))
      (t (message "")))


;;;; Custom
(defconst custom-file (expand-file-name "custom.el" user-emacs-directory))

;; if no custom file exists, write a default one
(unless (file-exists-p custom-file)
  (write-region "(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(powerline-evil-normal-face ((t (:background \"#859900\")))))
(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(custom-enabled-themes (quote (monokai)))
 '(custom-safe-themes
   (quote
    (\"c7a9a68bd07e38620a5508fef62ec079d274475c8f92d75ed0c33c45fbe306bc\" default))))
" nil custom-file))
(load custom-file)