Sync with Tramp 2.8.0.5

* doc/misc/tramp.texi (Remote processes): Improve description
where direct asyn processes won't work.

* lisp/net/tramp-cache.el (with-tramp-saved-connection-properties):
Adapt `tramp-verbose' less aggressive.

* lisp/net/tramp-container.el (tramp-kubernetes--context-namespace):
Use `string-join'.

* lisp/net/tramp-message.el (tramp-get-debug-file-name):
Modify debug file name.
(tramp-debug-message): Simplify.

* lisp/net/tramp-sh.el (tramp-actions-before-shell)
(tramp-actions-copy-out-of-band):
Add `tramp-keyboard-interactive-authentication-prompt-regexp'.

* lisp/net/tramp.el (tramp-encoding-shell): Fix docstring.
(tramp-keyboard-interactive-authentication-prompt-regexp): New defcustom.
(tramp-action-ignore-message): New defun.

* test/lisp/net/tramp-tests.el (tramp-test10-write-region)
(tramp-test10-write-region-file-precious-flag)
(tramp-test10-write-region-other-file-name-handler)
(tramp-test27-load, tramp-test32-shell-command)
(tramp-test32-shell-command-dont-erase-buffer)
(tramp-test34-connection-local-variables)
(tramp-test36-vc-registered, tramp-test39-make-lock-file-name)
(tramp-test39-detect-external-change)
(tramp-test45-asynchronous-requests): Adapt tests.

doc/misc/tramp.texi

@@ -4737,7 +4737,9 @@ It works only for some connection methods defined in
 It does not support interactive user authentication.  With
 @option{ssh}-based methods, this can be avoided by using a password
 agent like @command{ssh-agent}, using public key authentication, or
-using @option{ControlMaster} options.
+using @option{ControlMaster} options.@*
+Other interactive authentication requests, like one-time passwords or
+security key confirmation messages, do not work either.
 
 @item
 It cannot be applied for @option{ssh}-based methods, which use the

lisp/net/tramp-cache.el

@@ -512,7 +512,9 @@ PROPERTIES is a list of file properties (strings)."
 	      (cons property (gethash property hash tramp-cache-undefined)))
 	    ,properties))
 	  ;; Avoid superfluous debug buffers during host name completion.
-	  (tramp-verbose (if minibuffer-completing-file-name 0 tramp-verbose)))
+	  (tramp-verbose
+	   (if minibuffer-completing-file-name
+	       (min 6 tramp-verbose) tramp-verbose)))
      (tramp-message key 7 "Saved %s" values)
      (unwind-protect (progn ,@body)
        ;; Reset PROPERTIES.  Recompute hash, it could have been flushed.

lisp/net/tramp-container.el

@@ -427,8 +427,7 @@ Obey `tramp-kubernetes-context'"
 ;;;###tramp-autoload
 (defun tramp-kubernetes--context-namespace (vec)
   "The kubectl options for context and namespace as string."
-  (mapconcat
-   #'identity
+  (string-join
    (delq nil
 	 `(,(when-let* ((context (tramp-kubernetes--current-context vec)))
 	      (format "--context=%s" context))

lisp/net/tramp-message.el

@@ -194,11 +194,13 @@ They are completed by `M-x TAB' only in Tramp debug buffers."
       (tramp-setup-debug-buffer))
     (current-buffer)))
 
+;; On some systems, file names starting with "*" do not work.
 (defun tramp-get-debug-file-name (vec)
   "Get the debug file name for VEC."
   (declare (tramp-suppress-trace t))
   (expand-file-name
-   (string-replace "/" " " (tramp-debug-buffer-name vec))
+   (string-replace
+    "/" " " (substring (tramp-debug-buffer-name vec) 1 -1))
    tramp-compat-temporary-file-directory))
 
 (defun tramp-trace-buffer-name (vec)
@@ -227,13 +229,12 @@ ARGUMENTS to actually emit the message (if applicable)."
 	    ";; Emacs: %s Tramp: %s -*- mode: outline; coding: utf-8; -*-"
 	    emacs-version tramp-version))
 	  (when (>= tramp-verbose 10)
-	    (let ((tramp-verbose 0))
-	      (insert
-	       (format
-		"\n;; Location: %s Git: %s/%s"
-		(locate-library "tramp")
-		(or tramp-repository-branch "")
-		(or tramp-repository-version "")))))
+	    (insert
+	     (format
+	      "\n;; Location: %s Git: %s/%s"
+	      (locate-library "tramp")
+	      (or tramp-repository-branch "")
+	      (or tramp-repository-version ""))))
 	  ;; Traces.
 	  (when (>= tramp-verbose 11)
 	    (dolist
@@ -249,7 +250,7 @@ ARGUMENTS to actually emit the message (if applicable)."
 	    (ignore-errors (delete-file (tramp-get-debug-file-name vec)))
 	    (let ((message-log-max t))
 	      (message
-	       "Tramp debug file is %s" (tramp-get-debug-file-name vec)))))
+	       "Tramp debug file is \"%s\"" (tramp-get-debug-file-name vec)))))
 	(unless (bolp)
 	  (insert "\n"))
 	;; Timestamp.

lisp/net/tramp-sh.el

@@ -649,7 +649,9 @@ shell from reading its init file."
 
 ;;;###tramp-autoload
 (defconst tramp-actions-before-shell
-  '((tramp-login-prompt-regexp tramp-action-login)
+  '((tramp-keyboard-interactive-authentication-prompt-regexp
+     tramp-action-ignore-message)
+    (tramp-login-prompt-regexp tramp-action-login)
     (tramp-password-prompt-regexp tramp-action-password)
     (tramp-otp-password-prompt-regexp tramp-action-otp-password)
     (tramp-fingerprint-prompt-regexp tramp-action-fingerprint)
@@ -676,7 +678,9 @@ The ACTION should also be a symbol, but a function.  When the
 corresponding PATTERN matches, the ACTION function is called.")
 
 (defconst tramp-actions-copy-out-of-band
-  '((tramp-password-prompt-regexp tramp-action-password)
+  '((tramp-keyboard-interactive-authentication-prompt-regexp
+     tramp-action-ignore-message)
+    (tramp-password-prompt-regexp tramp-action-password)
     (tramp-otp-password-prompt-regexp tramp-action-otp-password)
     (tramp-wrong-passwd-regexp tramp-action-permission-denied)
     (tramp-copy-failed-regexp tramp-action-permission-denied)

lisp/net/tramp.el

@@ -36,8 +36,8 @@
 
 ;; This package provides remote file editing, similar to ange-ftp.
 ;; The difference is that ange-ftp uses FTP to transfer files between
-;; the local and the remote host, whereas tramp.el uses a combination
-;; of rsh and rcp or other work-alike programs, such as ssh/scp.
+;; the local and the remote host, whereas Tramp uses a combination of
+;; rsh and rcp or other work-alike programs, such as ssh/scp.
 ;;
 ;; For more detailed instructions, please see the info file.
 ;;
@@ -190,8 +190,8 @@ If the shell must be forced to be interactive, see
 `tramp-encoding-command-interactive'.
 
 Note that this variable is not used for remote commands.  There are
-mechanisms in tramp.el which automatically determine the right shell to
-use for the remote host."
+mechanisms in Tramp which automatically determine the right shell to use
+for the remote host."
   :type '(file :must-match t)
   :link '(info-link :tag "Tramp manual" "(tramp) Remote shell setup"))
 
@@ -661,6 +661,17 @@ I don't think this ever needs to be changed, so please tell me about it
 if you need to change this."
   :type 'string)
 
+(defcustom tramp-keyboard-interactive-authentication-prompt-regexp
+  ;; This shouldn't be needed.  But sometimes, this message happens
+  ;; after the first request, although it shall be prior any
+  ;; authentication request.
+  (rx "-- Keyboard-interactive authentication prompts "
+      "from server: ------------------" (* blank) (* (any "\r\n")))
+    "Regexp matching keyboard-interactive authentication requests.
+The regexp should match at end of buffer."
+  :version "31.1"
+  :type 'regexp)
+
 (defcustom tramp-login-prompt-regexp
   (rx (* nonl) (| "user" "login") (? blank (* nonl)) ":" (* blank))
   "Regexp matching login-like prompts.
@@ -714,7 +725,7 @@ The `sudo' program appears to insert a `^@' character into the prompt."
   (rx-to-string
    `(: bol (* nonl)
        (group (|
-	 ;; JumpCloud.
+	 ;; JumpCloud.  Google Authenticator.
 	 "Verification code"
 	 ;; TACC HPC.  <https://docs.tacc.utexas.edu/basics/mfa/>
 	 "TACC Token Code"))
@@ -5940,6 +5951,17 @@ of."
 (defvar tramp-process-action-regexp nil
   "The regexp used to invoke an action in `tramp-process-one-action'.")
 
+(defun tramp-action-ignore-message (proc vec)
+  "Ignore the message.
+Keep the rest for next check."
+  (with-current-buffer (process-buffer proc)
+    (tramp-message vec 6 "\n%s" (buffer-string))
+    (goto-char (point-min))
+    (tramp-check-for-regexp proc tramp-process-action-regexp)
+    (replace-match "")
+    (tramp-message vec 10 "\n%s" (buffer-string)))
+  nil)
+
 (defun tramp-action-login (_proc vec)
   "Send the login name."
   (let ((user (or (tramp-file-name-user vec)

test/lisp/net/tramp-tests.el

@@ -2675,7 +2675,7 @@ This checks also `file-name-as-directory', `file-name-directory',
 
   (dolist (quoted (if (tramp--test-expensive-test-p) '(nil t) '(nil)))
     (let ((tmp-name (tramp--test-make-temp-name nil quoted))
-          (inhibit-message t))
+          (inhibit-message (not (ignore-errors (edebug-mode)))))
       (unwind-protect
 	  (progn
             ;; Write buffer.  Use absolute and relative file name.
@@ -2801,7 +2801,7 @@ This checks also `file-name-as-directory', `file-name-directory',
   (skip-unless (tramp--test-sh-p))
 
   (let* ((tmp-name (tramp--test-make-temp-name))
-         (inhibit-message t)
+         (inhibit-message (not (ignore-errors (edebug-mode))))
          written-files
          (advice (lambda (_start _end filename &rest _r)
                    (push filename written-files))))
@@ -2838,7 +2838,7 @@ This checks also `file-name-as-directory', `file-name-directory',
 	 (archive (ert-resource-file "foo.tar.gz"))
 	 (tmp-file (expand-file-name (file-name-nondirectory archive)))
 	 (require-final-newline t)
-	 (inhibit-message t)
+	 (inhibit-message (not (ignore-errors (edebug-mode))))
          (backup-inhibited t)
 	 create-lockfiles buffer1 buffer2)
     (unwind-protect
@@ -5296,7 +5296,9 @@ This tests also `make-symbolic-link', `file-truename' and `add-name-to-file'."
 	    (unless (tramp--test-ange-ftp-p)
 	      (load tmp-name 'noerror 'nomessage))
 	    (should-not (featurep 'tramp-test-load))
-	    (write-region "(provide 'tramp-test-load)" nil tmp-name)
+	    (write-region
+	     ";;; -*- lexical-binding: t; -*-\n(provide 'tramp-test-load)"
+	     nil tmp-name)
 	    ;; `load' in lread.c passes `must-suffix' since Emacs 29.
 	    ;; In Ange-FTP, `must-suffix' is ignored.
 	    (when (and (tramp--test-emacs29-p)
@@ -6119,7 +6121,7 @@ INPUT, if non-nil, is a string sent to the process."
     (let ((tmp-name (tramp--test-make-temp-name nil quoted))
 	  (default-directory ert-remote-temporary-file-directory)
 	  ;; Suppress nasty messages.
-	  (inhibit-message t)
+	  (inhibit-message (not (ignore-errors (edebug-mode))))
 	  kill-buffer-query-functions)
 
       (dolist (this-shell-command
@@ -6237,7 +6239,7 @@ INPUT, if non-nil, is a string sent to the process."
   ;; -----------------------------------------------
 
   (let (;; Suppress nasty messages.
-	(inhibit-message t)
+	(inhibit-message (not (ignore-errors (edebug-mode))))
 	buffer kill-buffer-query-functions)
     ;; We check both the local and remote case, in order to guarantee
     ;; that they behave similar.
@@ -6468,7 +6470,7 @@ INPUT, if non-nil, is a string sent to the process."
 	 (tmp-name2 (expand-file-name "foo" tmp-name1))
 	 (enable-local-variables :all)
 	 (enable-remote-dir-locals t)
-         (inhibit-message t)
+         (inhibit-message (not (ignore-errors (edebug-mode))))
 	 kill-buffer-query-functions
 	 (clpa connection-local-profile-alist)
 	 (clca connection-local-criteria-alist))
@@ -6735,7 +6737,7 @@ INPUT, if non-nil, is a string sent to the process."
 	   (tmp-name2 (expand-file-name "foo" tmp-name1))
 	   (tramp-remote-process-environment tramp-remote-process-environment)
 	   ;; Suppress nasty messages.
-           (inhibit-message t)
+           (inhibit-message (not (ignore-errors (edebug-mode))))
 	   (vc-handled-backends
 	    (cond
 	     ((tramp-find-executable
@@ -7069,7 +7071,7 @@ INPUT, if non-nil, is a string sent to the process."
 	  (remote-file-name-inhibit-locks nil)
 	  (create-lockfiles t)
 	  tramp-allow-unsafe-temporary-files
-          (inhibit-message t)
+          (inhibit-message (not (ignore-errors (edebug-mode))))
 	  ;; tramp-rclone.el and tramp-sshfs.el cache the mounted files.
 	  (tramp-fuse-unmount-on-cleanup t)
           auto-save-default
@@ -7229,7 +7231,7 @@ INPUT, if non-nil, is a string sent to the process."
 	    (remote-file-name-inhibit-cache t)
 	    (remote-file-name-inhibit-locks nil)
 	    tramp-allow-unsafe-temporary-files
-            (inhibit-message t)
+            (inhibit-message (not (ignore-errors (edebug-mode))))
 	    ;; tramp-rclone.el and tramp-sshfs.el cache the mounted files.
 	    (tramp-fuse-unmount-on-cleanup t)
             auto-save-default
@@ -8005,7 +8007,7 @@ process sentinels.  They shall not disturb each other."
            (remote-file-name-inhibit-cache t)
            (process-file-side-effects t)
            ;; Suppress nasty messages.
-           (inhibit-message t)
+           (inhibit-message (not (ignore-errors (edebug-mode))))
 	   ;; Do not run delayed timers.
 	   (timer-max-repeats 0)
 	   ;; Number of asynchronous processes for test.  Tests on