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;;; funcs.el --- functions for my own usage
(defun fc/load-time ()
"How long did it take to load the configuration."
(message "Emacs init time %s" (emacs-init-time)))
(defun fc/system-info ()
"Display system informations"
(format
(concat "### System information :\n"
"- OS: %s\n"
"- Emacs: %s")
system-type
emacs-version))
;; font manipulation
(defun fc/scale-up-or-down-font-size (direction)
"Scale the font. If DIRECTION is positive or zero the font is scaled up,
otherwise it is scaled down."
(interactive)
(let ((scale 0.5))
(if (eq direction 0)
(text-scale-set 0)
(if (< direction 0)
(text-scale-decrease scale)
(text-scale-increase scale)))))
(defun fc/scale-up-font ()
"Scale up the font."
(interactive)
(fc/scale-up-or-down-font-size 1))
(defun fc/scale-down-font ()
"Scale up the font."
(interactive)
(fc/scale-up-or-down-font-size -1))
(defun fc/reset-font-size ()
"Reset the font size."
(interactive)
(fc/scale-up-or-down-font-size 0))
;; jump to the scratch buffer
(defun fc/switch-to-scratch ()
"Switch to scratch, grab the region if it's active."
(interactive)
(let ((contents
(and (region-active-p)
(buffer-substring (region-beginning)
(region-end)))))
(switch-to-buffer "*scratch*")
(if contents
(progn
(goto-char (buffer-end 1))
(insert contents)))))
(global-set-key (kbd "s-N") 'fc/switch-to-scratch)
;; rename a buffer
(defun fc/rename-this-buffer-and-file ()
"Renames current buffer and file it is visiting."
(interactive)
(let ((name (buffer-name))
(filename (buffer-file-name))
(read-file-name-function 'read-file-name-default))
(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)))
(cond ((get-buffer new-name)
(error "A buffer named '%s' already exists!" new-name))
(t
(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))))))))
;; create temporary files
(defun fc/start--file (path)
"Create a file at PATH, creating any containing directories as necessary.
Visit the file after creation."
(make-directory (file-name-directory path) t)
(find-file path))
(defun fc/start-tmp-file (file-name)
"Create a file in /tmp for the given file name."
(interactive "sName of temporary file: ")
(fc/start--file (expand-file-name (format "/tmp/%s" file-name))))
(defun fc/start-nest-tmp-file (file-name)
"Create a file in ~/tmp on nest for the give file name."
(interactive "sName of the temporary file: ")
(fc/start--file (expand-file-name (format "/nest.smfc.twitter.com:~/tmp/%s" file-name))))
;; open dired buffer with tramp on remote host
(defun fc/remote--dired (host)
"Open dired on a remote host."
(dired (concat "/" host ":")))
(defun fc/remote-nest-dired ()
"Open dired on nest."
(interactive)
(fc/remote--dired "nest.smfc.twitter.com"))
;; un/monitor hosts by running mth remotely
(defun fc/silence-host (host)
(interactive "sHostname: ")
(let ((default-directory "/ssh:nest.smfc.twitter.com:"))
(start-file-process "mth" (get-buffer-create "*mth*")
"/usr/local/bin/mth" "silence" host "99 years")))
(defun fc/unsilence-host (host)
(interactive "sHostname: ")
(let ((default-directory "/ssh:nest.smfc.twitter.com:"))
(start-file-process "mth" (get-buffer-create "*mth*")
"/usr/local/bin/mth" "unsilence" host)))
(provide 'funcs)
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