Avoid leading tabs in shell scripts, sent by Tramp.

Fixes: debbugs:20118

* tramp-sh.el (tramp-maybe-send-script): Avoid leading tabs in
shell scripts.

2 files changed, 9 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index b734aaa39e3..cf4eeae2287 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2015-03-17  Michael Albinus  <michael.albinus@gmx.de>
+
+        * tramp-sh.el (tramp-maybe-send-script): Avoid leading tabs in
+        shell scripts.  (Bug#20118)
+
 2015-03-17  Eli Zaretskii  <eliz@gnu.org>
 
         * mouse.el (mouse-appearance-menu): If w32-use-w32-font-dialog is
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index b6c47bcb7bb..133d886f372 100644
--- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -3725,6 +3725,10 @@ Only send the definition if it has not already been done."
                   (tramp-get-connection-process vec) "scripts" nil)))
     (unless (member name scripts)
       (with-tramp-progress-reporter vec 5 (format "Sending script `%s'" name)
+        ;; In bash, leading TABs like in `tramp-vc-registered-read-file-names'
+        ;; could result in unwanted command expansion.  Avoid this.
+        (setq script (tramp-compat-replace-regexp-in-string
+                      (make-string 1 ?\t) (make-string 8 ? ) script))
         ;; The script could contain a call of Perl.  This is masked with `%s'.
         (when (and (string-match "%s" script)
                    (not (tramp-get-remote-perl vec)))