Make a more robust check in Tramp using scripts

* lisp/net/tramp-sh.el (tramp-find-inline-encoding):
Check, whether scripts in `tramp-remote-coding-commands' are
expandable.

1 files changed, 4 insertions, 0 deletions

diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index c2a02312474..72eb63d3929 100644
--- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -4597,6 +4597,8 @@ Goes through the list `tramp-local-coding-commands' and
                           (value (symbol-value rem-enc)))
                       (while (string-match "-" name)
                         (setq name (replace-match "_" nil t name)))
+                      (unless (tramp-expand-script vec value)
+                        (throw 'wont-work-remote nil))
                       (tramp-maybe-send-script vec value name)
                       (setq rem-enc name)))
                   (tramp-message
@@ -4614,6 +4616,8 @@ Goes through the list `tramp-local-coding-commands' and
                           (value (symbol-value rem-dec)))
                       (while (string-match "-" name)
                         (setq name (replace-match "_" nil t name)))
+                      (unless (tramp-expand-script vec value)
+                        (throw 'wont-work-remote nil))
                       (tramp-maybe-send-script vec value name)
                       (setq rem-dec name)))
                   (tramp-message