Function: tramp-get-test-nt-command

tramp-get-test-nt-command is a byte-compiled function defined in tramp-sh.el.gz.

Signature

(tramp-get-test-nt-command VEC)

Documentation

Check, whether the remote test command supports the -nt option.

Source Code

;; Defined in /usr/src/emacs/lisp/net/tramp-sh.el.gz
(defun tramp-get-test-nt-command (vec)
  "Check, whether the remote `test' command supports the -nt option."
  ;; Does `test A -nt B' work?  Use abominable `find' construct if it
  ;; doesn't.  BSD/OS 4.0 wants the parentheses around the command,
  ;; for otherwise the shell crashes.
  (with-tramp-connection-property vec "test-nt"
    (or
     (progn
       (tramp-send-command
	vec (format "( %s / -nt / )" (tramp-get-test-command vec)))
       (with-current-buffer (tramp-get-buffer vec)
	 (goto-char (point-min))
	 (when (looking-at-p (regexp-quote tramp-end-of-output))
	   (format "%s %%s -nt %%s" (tramp-get-test-command vec)))))
     (progn
       (tramp-send-command
	vec
	(format
	 "tramp_test_nt () {\n%s -n \"`find $1 -prune -newer $2 -print`\"\n}"
	 (tramp-get-test-command vec)))
       "tramp_test_nt %s %s"))))