Personal emacs config
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10 KiB

Global

Add features/modes

ibuffer-mode

(require 'ibuffer-vc)
(add-hook 'ibuffer-mode-hook (lambda ()
			       (ibuffer-vc-set-filter-groups-by-vc-root)))

(global-set-key (kbd "C-x C-b") 'ibuffer)
;; Use human readable Size column instead of original one
(define-ibuffer-column size-h
  (:name "Size" ;; :inline t
	 )
  (cond
   ((> (buffer-size) 1000000) (format "%7.1fM" (/ (buffer-size) 1000000.0)))
   ((> (buffer-size) 100000) (format "%7.0fk" (/ (buffer-size) 1000.0)))
   ((> (buffer-size) 1000) (format "%7.1fk" (/ (buffer-size) 1000.0)))
   (t (format "%8d" (buffer-size)))))

;; Modify the default ibuffer-formats
(setq ibuffer-formats
      '((mark modified read-only " "
	      (name 18 18 :left :elide)
	      " "
	      (size-h 9 -1 :right)
	      " "
	      (mode 16 16 :left :elide)
	      " "
	      filename-and-process)))

string-inflection

(require 'string-inflection)

;; C-q C-u is the key bindings similar to Vz Editor.
(global-set-key (kbd "C-M-,") 'my-string-inflection-cycle-auto)

(defun my-string-inflection-cycle-auto ()
  "switching by major-mode"
  (interactive)
  (cond
   ;; for emacs-lisp-mode
   ((eq major-mode 'emacs-lisp-mode)
    (string-inflection-all-cycle))
   ;; for python
   ((eq major-mode 'python-mode)
    (string-inflection-python-style-cycle))
   ;; for java
   ((eq major-mode 'java-mode)
    (string-inflection-java-style-cycle))
   (t
    ;; default
    (string-inflection-ruby-style-cycle))))

undo-tree

(require 'undo-tree)
(global-undo-tree-mode)

ssh-config-mode

(require 'ssh-config-mode)
(add-to-list 'auto-mode-alist '("~/.ssh/config\\'" . ssh-config-mode))

yaml-mode

(require 'yaml-mode)
(add-to-list 'auto-mode-alist '("\\.yml\\'" . yaml-mode))

elpy move line up and down globally

(require 'elpy)
(global-set-key (kbd "M-<up>") 'elpy-nav-move-line-or-region-up)
(global-set-key (kbd "M-<down>") 'elpy-nav-move-line-or-region-down)
(global-set-key (kbd "C-c <left>")  'windmove-left)
(global-set-key (kbd "C-c <right>") 'windmove-right)
(global-set-key (kbd "C-c <up>")    'windmove-up)
(global-set-key (kbd "C-c <down>")  'windmove-down)

iedit-mode

(global-set-key (kbd "C-;") 'iedit-mode)

spellcheck entire buffer

(global-set-key (kbd "C-!") 'ispell-buffer)

find/replace

(require 'visual-regexp-steroids)
(define-key global-map (kbd "C-c r") 'vr/replace)
(define-key global-map (kbd "C-c q") 'vr/query-replace)

duplicate line function

(defun duplicate-line()
  (interactive)
  (move-beginning-of-line 1)
  (kill-line)
  (yank)
  (open-line 1)
  (next-line 1)
  (yank))
(global-set-key (kbd "C-c d") 'duplicate-line)

magit

(global-set-key (kbd "C-x g") 'magit-status)
(add-hook 'git-commit-setup-hook 'git-commit-turn-on-flyspell)

filename completion

(global-set-key (kbd "C->") 'comint-dynamic-complete-filename)

hippie expand

(global-set-key (kbd "M-/") 'hippie-expand)
(setq hippie-expand-try-functions-list '(try-expand-dabbrev try-expand-dabbrev-all-buffers try-expand-dabbrev-from-kill
 try-complete-file-name-partially try-complete-file-name
 try-expand-all-abbrevs try-expand-list try-expand-line
 try-complete-lisp-symbol-partially try-complete-lisp-symbol))

window numbering mode

(window-numbering-mode)

options

global

recent files
(require 'recentf)
(recentf-mode 1)
backup
(let ((backup-dir (concat user-emacs-directory "backup"))
      (auto-save-dir (concat user-emacs-directory "autosave"))
      )
  (if (not (file-directory-p backup-dir))
      (make-directory backup-dir))
  (if (not(file-directory-p auto-save-dir))
      (make-directory auto-save-dir)
    )
  (setq backup-directory-alist
	`((".*" . , backup-dir)))
  (setq auto-save-file-name-transforms
	`((".*" , (concat auto-save-dir "/") t))))
kill buffer option
(global-set-key (kbd "C-x k") 'kill-this-buffer)
inhibit start screen
(setq inhibit-startup-screen t)
save options
(add-hook 'before-save-hook 'delete-trailing-whitespace)
theming
(load-theme 'dracula t)
bell
(mode-line-bell-mode)
ivy
(ivy-mode)
(global-set-key (kbd "C-s") 'swiper)
kill-emacs key
(global-set-key (kbd "C-x C-k C-x C-k") 'kill-emacs)
linum
(global-display-line-numbers-mode)
enable commands
(put 'downcase-region 'disabled nil)

dired

(setq ls-lisp-use-insert-directory-program t)
(setq dired-listing-switches "-alh")

Tramp configuration

(add-to-list 'tramp-remote-path 'tramp-own-remote-path)
(add-to-list 'tramp-remote-path "/system/xbin")
(add-to-list 'tramp-remote-path "/data/data/com.termux/file/usr/bin")

Web things

javascript stuff

(require 'js2-mode)
(add-to-list 'auto-mode-alist '("\\.js\\'" . js2-mode))
(add-hook 'js2-mode-hook #'js2-imenu-extras-mode)
(require 'js2-refactor)
(require 'xref-js2)
(add-hook 'js2-mode-hook #'js2-refactor-mode)
(js2r-add-keybindings-with-prefix "C-c C-r")
(define-key js2-mode-map (kbd "C-k") #'js2r-kill)
(define-key js-mode-map (kbd "M-.") nil)
(add-hook 'js2-mode-hook (lambda ()
			   (add-hook 'xref-backend-functions #'xref-js2-xref-backend nil t)))
(define-key js2-mode-map (kbd "C-k") #'js2r-kill)

web mode

(require 'web-mode)
(add-to-list 'auto-mode-alist '("\\.phtml\\'" . web-mode))
(add-to-list 'auto-mode-alist '("\\.tpl\\.php\\'" . web-mode))
(add-to-list 'auto-mode-alist '("\\.[agj]sp\\'" . web-mode))
(add-to-list 'auto-mode-alist '("\\.as[cp]x\\'" . web-mode))
(add-to-list 'auto-mode-alist '("\\.erb\\'" . web-mode))
(add-to-list 'auto-mode-alist '("\\.mustache\\'" . web-mode))
(add-to-list 'auto-mode-alist '("\\.djhtml\\'" . web-mode))
(add-to-list 'auto-mode-alist '("\\.html?\\'" . web-mode))

Platform Specific

(cond

Windows

 ((string-equal system-type "windows-nt")
  (progn
    (defun rlbr/quote-exe (path)
      (w32-short-file-name path))
    (defun rlbr/start-external-shell ()
      (interactive)
      (start-process-shell-command (format "cmd(%s)" default-directory) nil "start default.bat"))
    (global-set-key (kbd "C-S-C") 'rlbr/start-external-shell)
    (defun rlbr/start-windows-explorer-here ()
      (interactive)
      (start-process-shell-command "explorer" nil
 				  (format "explorer %s"
 					  (replace-regexp-in-string "/" (regexp-quote "\\") (expand-file-name default-directory))))
      )
    (global-set-key (kbd "C-S-E") 'rlbr/start-windows-explorer-here)
    (defun rlbr/case-insensitive-match (string1 string2)
      (apply 'string-equal (mapcar 'downcase (list string1 string2))))

    (defun rlbr/output-matches (output-matches-p exe args)
      "locate the executable whose output satifies output-matches-p when fed args and return the fullpath"
      (let
          (
           (exec-path exec-path)
           (output)
           (bad)
           (command-output)
           (current-exe)
           (failed)
           )
        (while (not (or output failed))
          (setq current-exe (executable-find exe))
          (if current-exe
     	  (progn
     	    (setq command-output (shell-command-to-string (format "%s %s" (rlbr/quote-exe current-exe) args)))
     	    (if (funcall output-matches-p command-output)
     		(setq output current-exe)
     	      (progn
     		(setq bad (replace-regexp-in-string "/$" "" (file-name-directory current-exe)))
     		(setq exec-path (seq-filter (lambda (item) (not (rlbr/case-insensitive-match item bad))) exec-path)))))
     	(setq failed t)))
        output))
    (let
        ((find)
 	(grep)
 	(ls))
      (progn
        (setq find (rlbr/output-matches (lambda (output) (string-equal ".\n" output)) "find" "-maxdepth 0"))
        (if find
 	   (setq find-program (rlbr/quote-exe find)))
        (setq grep (rlbr/output-matches (lambda (output) (string-match "grep (\\w+ grep)" output)) "grep" "-V"))
        (if grep
 	   (setq grep-program (rlbr/quote-exe grep)))
        (setq ls (rlbr/output-matches (lambda (output) (string-match "ls: .*'\\?/': No such file or directory" output)) "ls" "?/"))
        (if ls
 	   (setq insert-directory-program (rlbr/quote-exe ls)))))
    (setq python-shell-interpreter (rlbr/quote-exe (executable-find "python")))
    (setq python-check-command (rlbr/quote-exe (executable-find "flake8")))
    (setq delete-by-moving-to-trash t)
    (defun python-shell-interpreter-refresh ()
      (interactive)
      (setq python-shell-interpreter (rlbr/quote-exe (executable-find "python"))))
    (add-hook 'python-django-project-root-hook 'python-shell-interpreter-refresh)
    ))

Linux

((string-equal system-type "gnu/linux")
 (progn
   (setq python-shell-interpreter "python3")
   (setq elpy-rpc-python-command python-shell-interpreter)
   (defun get-elpa-package-install-directory (pkg)
     "Return the install directory of elpa PKG. Return nil if it is not found."
     (let ((elpa-dir package-user-dir))
(when (file-exists-p elpa-dir)
  (let* ((pkg-match (concat "\\`" (symbol-name pkg) "-[0-9]+"))
	 (dir (car (directory-files elpa-dir 'full pkg-match))))
           (when dir (file-name-as-directory dir))))))
   (setq vr/command-python
  (format "python3 %s" (expand-file-name "regexp.py" (get-elpa-package-install-directory 'visual-regexp-steroids))))
   )))

Python

(elpy-enable)
(when (require 'flycheck nil t)
  (setq elpy-modules (delq 'elpy-module-flymake elpy-modules))
  (add-hook 'elpy-mode-hook 'flycheck-mode))
(require 'blacken)
(defun python-mode-keys ()
  "Modify python-mode local key map"
  (local-set-key (kbd "C-=") 'elpy-goto-assignment))
(add-hook 'python-mode-hook 'python-mode-keys)
(add-hook 'elpy-mode-hook 'blacken-mode)
(setq elpy-syntax-check-command python-check-command)