RSYNC : Sincronice carpetas / archivos seleccionados utilizando rsync
, ya sea a través de una red doméstica o mediante ssh
un servidor remoto.
rsync
es una utilidad de sincronización unidireccional que puede eliminar archivos en el destino, así que asegúrese de hacer una copia de seguridad de sus datos en las ubicaciones de origen y destino, y pruebe a fondo utilizando la --dry-run
opción, antes de hacer lo real.
Para leer sobre cómo configurar correctamente el .authinfo
archivo, consulte https://www.gnu.org/software/emacs/manual/auth.html. El .authinfo
contenido de un archivo de ejemplo (que puede contener varias entradas diferentes) es el siguiente:
machine mymachine login myloginname password mypassword port myport
Configure y use la función rsync-remote
para sincronizar con ssh
un servidor remoto. O utilice la función rsync-local
para sincronizar en la misma computadora o en una red doméstica confiable.
(require 'auth-source)
;;; EXAMPLE:
;;; (get-auth-info "12.34.567.89" "username")
;;; (get-auth-info "localhost" "root")
(defun get-auth-info (host user &optional port)
(let ((info (nth 0 (auth-source-search
:host host
:user user
:port port
:require '(:user :secret)
:create t))))
(if info
(let* ((port (plist-get info :port))
(secret-maybe (plist-get info :secret))
(secret
(if (functionp secret-maybe)
(funcall secret-maybe)
secret-maybe)))
(list port secret))
nil)))
(defun rsync-filter (proc string)
(cond
((string-match
"^\\([a-zA-Z0-9_\\-\\.]+\\)@\\([a-zA-Z0-9_\\-\\.]+\\)'s password: "
string)
(let* ((user (substring string (match-beginning 1) (match-end 1)))
(host (substring string (match-beginning 2) (match-end 2)))
(password (car (cdr (get-auth-info host user)))))
(process-send-string proc (concat password "\n"))))
((not (or (string-match "files\\.\\.\\.\r" string)
(string-match "files to consider\n" string)))
(with-current-buffer (messages-buffer)
(let ((inhibit-read-only t))
(goto-char (point-max))
(when (not (bolp))
(insert "\n"))
(insert string)
(when (not (bolp))
(insert "\n")))))))
(defun rsync-remote ()
"Use rsync to a remote server via ssh. Back-up your data first!!!"
(interactive)
(let* (
(host "localhost")
(username "root")
(port (or (car (get-auth-info host username))
(number-to-string (read-number "Port: "))))
(source
(let ((dir (expand-file-name (locate-user-emacs-file "elpa/"))))
(if (file-directory-p dir)
dir
(let ((debug-on-quit nil)
(msg (format "`%s` is not a valid directory." dir)))
(signal 'quit `(,msg))))))
(target "/private/var/mobile/elpa/")
(ssh "/usr/bin/ssh")
(rsync "/usr/bin/rsync")
(rsync-include-file "/path/to/include-file.txt")
(rsync-exclude-file "/path/to/exclude-file.txt")
(rsh (concat "--rsh=ssh -p " port " -l " username))
(host+target (concat host ":" target)))
(start-process
"rsync-process"
nil
rsync
"-avr" ;; must specify the `-r` argument when using `--files-from`
"--delete"
;; The paths inside the exclusion file must be relative, NOT absolute.
;;; (concat "--files-from=" rsync-include-file)
;;; (concat "--exclude-from=" rsync-exclude-file)
rsh
source
host+target)
(set-process-filter (get-process "rsync-process") 'rsync-filter)
(set-process-sentinel
(get-process "rsync-process")
(lambda (p e) (when (= 0 (process-exit-status p))
(message "rsync-remote: synchronizing ... done."))))))
(defun rsync-local ()
"Use rsync locally -- e.g., over a trusted home network.
Back-up your data first!!!"
(interactive)
(let (
(rsync-program "/usr/bin/rsync")
(source
(let ((dir (expand-file-name
(file-name-as-directory
(read-directory-name "Source Directory: " nil nil nil nil)))))
(if (file-directory-p dir)
dir
(let ((debug-on-quit nil)
(msg (format "`%s` is not a valid directory." dir)))
(signal 'quit `(,msg))))))
(target (expand-file-name
(file-name-as-directory
(read-directory-name "Target Directory: " nil nil nil nil)))))
(unless (y-or-n-p (format "SOURCE: %s | TARGET: %s" source target))
(let ((debug-on-quit nil))
(signal 'quit `("You have exited the function."))))
(start-process "rsync-process"
nil
rsync-program
"--delete"
"-arzhv"
source
target)
(set-process-filter (get-process "rsync-process") #'rsync-process-filter)
(set-process-sentinel
(get-process "rsync-process")
(lambda (p e)
(when (= 0 (process-exit-status p))
(message "Done!"))))))