RSYNC : sincronize pastas / arquivos selecionados usando rsyncuma rede doméstica ou via sshservidor remoto.
rsyncé um utilitário de sincronização unidirecional capaz de excluir arquivos no destino. Portanto, faça backup de seus dados nos locais de origem e de destino e faça um teste completo usando a --dry-runopção antes de fazer a coisa real.
Para ler sobre como configurar corretamente o .authinfoarquivo, consulte https://www.gnu.org/software/emacs/manual/auth.html Um exemplo de .authinfoconteúdo de arquivo (que pode conter várias entradas diferentes) é o seguinte:
machine mymachine login myloginname password mypassword port myport
Configure e use a função rsync-remotepara sincronizar sshcom um servidor remoto. Ou use a função rsync-localpara sincronizar no mesmo computador ou em uma rede doméstica confiável.
(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!"))))))