Emacs init.el

Posted 2020-08-30

;; ----------Package Management

(when (>= emacs-major-version 24)
    (require ‘package)
    (package-initialize)
    (add-to-list ‘package-archives ‘("melpa" . "http://melpa.org/packages/") t))

;; cl - Common Lisp Extension
(require ‘cl);; loop 为common lisp 的扩展

;; Add Packages
(defvar my/packages ‘(
           ;; --- Auto-completion ---
           company
           ;; --- Better Editor ---
           evil
           evil-leader
           smooth-scrolling
           hungry-delete
           swiper
           counsel
           smartparens
           popwin
           ;; --- Themes ---
           monokai-theme
           ;; --- Window Jump --
           window-numbering
           ) "Default packages")

(setq package-selected-packages my/packages)

(defun my/packages-installed-p ()
    (loop for pkg in my/packages
      when (not (package-installed-p pkg)) do (return nil)
      finally (return t)))

(unless (my/packages-installed-p)
    (message "%s" "Refreshing package database...")
    (package-refresh-contents)
    (dolist (pkg my/packages)
      (when (not (package-installed-p pkg))
    (package-install pkg))))

(global-company-mode 1)
(add-hook ‘after-init-hook ‘global-company-mode)
(setq company-dabbrev-downcase nil)

(require ‘hungry-delete)
(global-hungry-delete-mode)

(global-set-key (kbd "M-p") ‘ace-window)

(window-numbering-mode 1)

;; --- Leader Key ----
(require ‘evil-leader)
(global-evil-leader-mode)
(evil-leader/set-leader "<SPC>")

(evil-leader/set-key
  "<SPC>"  ‘counsel-M-x
  "ff" ‘find-file
  "fs" ‘save-buffer
  "rf" ‘recentf-open-files
  "bb" ‘switch-to-buffer
  "p" ‘scroll-down
  "n" ‘scroll-up
  "bb" ‘switch-to-buffer
  "1"  ‘select-window-1
  "2"  ‘select-window-2
  "3"  ‘select-window-3
  "4"  ‘select-window-4
  "wr" ‘split-window-right
  "wb" ‘split-window-below
  "wm" ‘delete-other-windows
  )


(require ‘evil) 
(evil-mode 1) ;以上的是设置启动emacs载入evil 


(global-set-key "\C-s" ‘swiper)

(load-theme ‘monokai 1)


(global-set-key (kbd "M-x") ‘smex)




;; ------ Common Set -----
(global-hl-line-mode 1)
(add-hook ‘emacs-lisp-mode-hook ‘show-paren-mode)
(tool-bar-mode -1)
(menu-bar-mode -1)
(scroll-bar-mode -1)
(window-divider-mode -1)
;;(setq inhibit-splash-screen t)
;;(setq-default cursor-type ‘bar)
(setq  initial-frame-alist (quote ((fullscreen . maximized))))
;; 关闭启动帮助画面
(setq inhibit-splash-screen 1)
;;(global-hl-line-mode t)
(setq make-backup-files nil)
(global-linum-mode 1)

;; recent open files
(require ‘recentf)
(recentf-mode 1)
(setq recentf-max-menu-item 10)

(delete-selection-mode 1)

;;下面的代码可以是 Emacs 自动加载外部修改过的文件。
(global-auto-revert-mode 1)

;;使用下面的代码可以关闭自己生产的保存文件（之前我们已经关闭过了 Emacs 自动生产的 备份文件了，现在是关闭自动保存文件）。
(setq auto-save-default nil)


;; ----------- Dired Mode -----------------
;;+ 创建目录
;;g 刷新目录
;;C 拷贝
;;D 删除
;;R 重命名
;;d 标记删除
;;u 取消标记
;;x 执行所有的标记
;;这里有几点可以优化的地方。第一是删除目录的时候 Emacs 会询问是否递归删除或拷贝， 这也有些麻烦我们可以用下面的配置将其设定为默认递归删除目录（出于安全原因的考虑， 也许你需要保持此行为。所有文中的配置请务必按需配置）。

(setq dired-recursive-deletes ‘always)
(setq dired-recursive-copies ‘always)

;;第二是，每一次你进入一个回车进入一个新的目录中是，一个新的缓冲区就会被建立。这使 得我们的缓冲区列表中充满了大量没有实际意义的记录。我们可以使用下面的代码，让 Emacs 重用唯一的一个缓冲区作为 Dired Mode 显示专用缓冲区。

(put ‘dired-find-alternate-file ‘disabled nil)

;; 主动加载 Dired Mode
;; (require ‘dired)
;; (defined-key dired-mode-map (kbd "RET") ‘dired-find-alternate-file)

;; 延迟加载
(with-eval-after-load ‘dired
    (define-key dired-mode-map (kbd "RET") ‘dired-find-alternate-file))

;;启用 dired-x 可以让每一次进入 Dired 模式时，使用新的快捷键 C-x C-j 就可以进 入当前文件夹的所在的路径。
(require ‘dired-x)