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;;; Files and buffers
(defun km/rename-current-buffer-file ()
"Rename current buffer and file it is visiting."
(interactive)
(let ((name (buffer-name))
(filename (buffer-file-name)))
(if (not (and filename (file-exists-p filename)))
(error "Buffer '%s' is not visiting a file!" name)
(let ((new-name (read-file-name "New name: " filename)))
(if (get-buffer new-name)
(error "A buffer named '%s' already exists!" new-name)
(rename-file filename new-name 1)
(rename-buffer new-name)
(set-visited-file-name new-name)
(set-buffer-modified-p nil)
(message "File '%s' successfully renamed to '%s'"
name (file-name-nondirectory new-name)))))))
(global-set-key (kbd "C-x C-r") 'km/rename-current-buffer-file)
;; https://github.com/purcell/emacs.d/blob/master/lisp/init-utils.el
(defun km/delete-this-file ()
"Delete the current file, and kill the buffer."
(interactive)
(or (buffer-file-name) (error "No file is currently being edited"))
(when (yes-or-no-p (format "Really delete '%s'?"
(file-name-nondirectory buffer-file-name)))
(delete-file (buffer-file-name))
(kill-this-buffer)))
;; http://emacs-fu.blogspot.com/2013/03/editing-with-root-privileges-once-more.html
(defun km/find-file-as-root ()
"`ido-find-file` that automatically edits the file with
root-privileges (using tramp/sudo) if the file is not writable by
user."
(interactive)
(let ((file (ido-read-file-name "Edit as root: ")))
(unless (file-writable-p file)
(setq file (concat "/sudo:root@localhost:" file)))
(find-file file)))
(global-set-key (kbd "C-x F") 'km/find-file-as-root)
(defun km/save-and-kill-buffer ()
"Save current buffer and then kill it"
(interactive)
(save-buffer)
(kill-this-buffer))
(global-set-key (kbd "C-x K") 'kill-buffer-and-window)
(key-chord-define-global ",f" 'find-file)
(key-chord-define-global ",s" 'save-buffer)
(key-chord-define-global ",q" 'kill-this-buffer)
(key-chord-define-global ",d" 'km/save-and-kill-buffer)
(key-chord-define-global ",e" '(lambda ()
(interactive)
(save-buffer)
(server-edit)))
;;; Ibuffer
;; Replace buffer-menu with ibuffer.
(global-set-key (kbd "C-x C-b") 'ibuffer)
;; Modified from http://martinowen.net/blog/2010/02/tips-for-emacs-ibuffer.html
;; and here http://www.elliotglaysher.org/emacs/.
(setq ibuffer-saved-filter-groups
'(("home"
("elisp" (mode . emacs-lisp-mode))
("org" (or (mode . org-mode)
(name . "^\\*Org Agenda\\*$")
(name . "^\\*Calendar\\*$")))
("web" (or (mode . html-mode)
(mode . nxml-mode)
(mode . css-mode)
(mode . less-css-mode)))
("r" (or (mode . ess-mode)
(mode . inferior-ess-mode)
(name . "^\\*ESS\\*$")))
("markup" (or (mode . markdown-mode)
(mode . rst-mode)))
("lua" (mode . lua-mode))
("perl" (mode . perl-mode))
("python" (or (mode . python-mode)
(name . "^\\*Python")))
("haskell" (mode . haskell-mode))
("text" (mode . text-mode))
("shell" (mode . sh-mode))
("latex" (or (mode . latex-mode)
(mode . LaTeX-mode)
(mode . bibtex-mode)
(mode . reftex-mode)))
("dir" (or (mode . dired-mode)
(name . "^\\*tramp")))
("terminal" (or (mode . term-mode)
(name . "^\\*Shell Command Output*")
(name . "^\\*External terminal*")))
("packages" (or (name . "^\\*Compile-Log\\*")
(name . "^\\*Packages\\*")))
("magit" (name . "^\\*magit"))
("emacs" (or (name . "^\\*scratch\\*$")
(name . "^\\*Messages\\*$")))
("mail" (or (mode . message-mode)
(mode . mail-mode)
(mode . gnus-group-mode)
(mode . gnus-summary-mode)
(mode . gnus-article-mode)
(mode . notmuch-search-mode)
(mode . notmuch-show-mode)
(name . "^\\*Mail sync\\*$")
(name . "^\\*Gnus sync\\*$")
(name . "^\\.newsrc-dribble")))
("help" (or (name . "^\\*Help\\*$")
(name . "^\\*Apropos\\*$")
(name . "^\\*info\\*$")
(name . "^\\*Completions\\*"))))))
(add-hook 'ibuffer-mode-hook
'(lambda ()
(ibuffer-auto-mode 1) ; Keep buffer list up-to-date.
(ibuffer-switch-to-saved-filter-groups "home")))
(setq
;; Don't prompt to delete unmodified buffers.
ibuffer-expert t
;; Don't show empty filter groups.
ibuffer-show-empty-filter-groups nil)
;; Recent files
(setq recentf-save-file "~/.emacs.d/cache/recentf"
recentf-max-saved-items 200
recentf-max-menu-items 15)
(recentf-mode t)
(provide 'init-buffile)
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