Make Tramp file name completion more quiet for all backends

* lisp/net/tramp-adb.el (tramp-adb-handle-file-name-all-completions):
* lisp/net/tramp-archive.el
(tramp-archive-handle-file-name-all-completions):
* lisp/net/tramp-crypt.el (tramp-crypt-handle-file-name-all-completions):
* lisp/net/tramp-fuse.el (tramp-fuse-handle-file-name-all-completions):
* lisp/net/tramp-gvfs.el (tramp-gvfs-handle-file-name-all-completions):
* lisp/net/tramp-sh.el (tramp-sh-handle-file-name-all-completions):
* lisp/net/tramp-smb.el (tramp-smb-handle-file-name-all-completions):
* lisp/net/tramp-sudoedit.el
(tramp-sudoedit-handle-file-name-all-completions):
Return nil when DIRECTORY is missing.  (Bug#61890)

lisp/net/tramp-adb.el

@@ -432,31 +432,32 @@ Emacs dired can't find files."
 
 (defun tramp-adb-handle-file-name-all-completions (filename directory)
   "Like `file-name-all-completions' for Tramp files."
-  (all-completions
-   filename
-   (with-parsed-tramp-file-name (expand-file-name directory) nil
-     (with-tramp-file-property v localname "file-name-all-completions"
-       (tramp-adb-send-command
-	v (format "%s -a %s | cat"
-		  (tramp-adb-get-ls-command v)
-		  (tramp-shell-quote-argument localname)))
-       (mapcar
-	(lambda (f)
-	  (if (file-directory-p (expand-file-name f directory))
-	      (file-name-as-directory f)
-	    f))
-	(with-current-buffer (tramp-get-buffer v)
-	  (delete-dups
-	   (append
-	    ;; On some file systems like "sdcard", "." and ".." are
-	    ;; not included.  We fix this by `delete-dups'.
-	    '("." "..")
-	    (delq
-	     nil
-	     (mapcar
-	      (lambda (l)
-		(and (not (string-match-p (rx bol (* blank) eol) l)) l))
-	      (split-string (buffer-string) "\n")))))))))))
+  (ignore-error file-missing
+    (all-completions
+     filename
+     (with-parsed-tramp-file-name (expand-file-name directory) nil
+       (with-tramp-file-property v localname "file-name-all-completions"
+	 (tramp-adb-send-command
+	  v (format "%s -a %s | cat"
+		    (tramp-adb-get-ls-command v)
+		    (tramp-shell-quote-argument localname)))
+	 (mapcar
+	  (lambda (f)
+	    (if (file-directory-p (expand-file-name f directory))
+		(file-name-as-directory f)
+	      f))
+	  (with-current-buffer (tramp-get-buffer v)
+	    (delete-dups
+	     (append
+	      ;; On some file systems like "sdcard", "." and ".." are
+	      ;; not included.  We fix this by `delete-dups'.
+	      '("." "..")
+	      (delq
+	       nil
+	       (mapcar
+		(lambda (l)
+		  (and (not (string-match-p (rx bol (* blank) eol) l)) l))
+		(split-string (buffer-string) "\n"))))))))))))
 
 (defun tramp-adb-handle-file-local-copy (filename)
   "Like `file-local-copy' for Tramp files."

lisp/net/tramp-archive.el

@@ -650,7 +650,9 @@ offered."
 
 (defun tramp-archive-handle-file-name-all-completions (filename directory)
   "Like `file-name-all-completions' for file archives."
-  (file-name-all-completions filename (tramp-archive-gvfs-file-name directory)))
+  (ignore-error file-missing
+    (file-name-all-completions
+     filename (tramp-archive-gvfs-file-name directory))))
 
 (defun tramp-archive-handle-file-readable-p (filename)
   "Like `file-readable-p' for file archives."

lisp/net/tramp-crypt.el

@@ -730,18 +730,19 @@ absolute file names."
 
 (defun tramp-crypt-handle-file-name-all-completions (filename directory)
   "Like `file-name-all-completions' for Tramp files."
-  (all-completions
-   filename
-   (let* (completion-regexp-list
-	  tramp-crypt-enabled
-	  (directory (file-name-as-directory directory))
-	  (enc-dir (tramp-crypt-encrypt-file-name directory)))
-     (mapcar
-      (lambda (x)
-	(substring
-	 (tramp-crypt-decrypt-file-name (concat enc-dir x))
-	 (length directory)))
-      (file-name-all-completions "" enc-dir)))))
+  (ignore-error file-missing
+    (all-completions
+     filename
+     (let* (completion-regexp-list
+	    tramp-crypt-enabled
+	    (directory (file-name-as-directory directory))
+	    (enc-dir (tramp-crypt-encrypt-file-name directory)))
+       (mapcar
+	(lambda (x)
+	  (substring
+	   (tramp-crypt-decrypt-file-name (concat enc-dir x))
+	   (length directory)))
+	(file-name-all-completions "" enc-dir))))))
 
 (defun tramp-crypt-handle-file-readable-p (filename)
   "Like `file-readable-p' for Tramp files."

lisp/net/tramp-fuse.el

@@ -98,20 +98,21 @@
 (defun tramp-fuse-handle-file-name-all-completions (filename directory)
   "Like `file-name-all-completions' for Tramp files."
   (tramp-fuse-remove-hidden-files
-   (all-completions
-    filename
-    (delete-dups
-     (append
-      (file-name-all-completions
-       filename (tramp-fuse-local-file-name directory))
-      ;; Some storage systems do not return "." and "..".
-      (let (result)
-	(dolist (item '(".." ".") result)
-	  (when (string-prefix-p filename item)
-	    (catch 'match
-	      (dolist (elt completion-regexp-list)
-		(unless (string-match-p elt item) (throw 'match nil)))
-	      (setq result (cons (concat item "/") result)))))))))))
+   (ignore-error file-missing
+     (all-completions
+      filename
+      (delete-dups
+       (append
+	(file-name-all-completions
+	 filename (tramp-fuse-local-file-name directory))
+	;; Some storage systems do not return "." and "..".
+	(let (result)
+	  (dolist (item '(".." ".") result)
+	    (when (string-prefix-p filename item)
+	      (catch 'match
+		(dolist (elt completion-regexp-list)
+		  (unless (string-match-p elt item) (throw 'match nil)))
+		(setq result (cons (concat item "/") result))))))))))))
 
 ;; This function isn't used.
 (defun tramp-fuse-handle-insert-directory

lisp/net/tramp-gvfs.el

@@ -1418,16 +1418,19 @@ If FILE-SYSTEM is non-nil, return file system attributes."
 (defun tramp-gvfs-handle-file-name-all-completions (filename directory)
   "Like `file-name-all-completions' for Tramp files."
   (unless (tramp-compat-string-search "/" filename)
-    (all-completions
-     filename
-     (with-parsed-tramp-file-name (expand-file-name directory) nil
-       (with-tramp-file-property v localname "file-name-all-completions"
-         (let ((result '("./" "../")))
-           ;; Get a list of directories and files.
-	   (dolist (item (tramp-gvfs-get-directory-attributes directory) result)
-	     (if (string-equal (cdr (assoc "type" item)) "directory")
-		 (push (file-name-as-directory (car item)) result)
-	       (push (car item) result)))))))))
+    (ignore-error file-missing
+      (all-completions
+       filename
+       (with-parsed-tramp-file-name (expand-file-name directory) nil
+	 (with-tramp-file-property v localname "file-name-all-completions"
+           (let ((result '("./" "../")))
+             ;; Get a list of directories and files.
+	     (dolist (item
+		      (tramp-gvfs-get-directory-attributes directory)
+		      result)
+	       (if (string-equal (cdr (assoc "type" item)) "directory")
+		   (push (file-name-as-directory (car item)) result)
+		 (push (car item) result))))))))))
 
 (defun tramp-gvfs-handle-file-notify-add-watch (file-name flags _callback)
   "Like `file-notify-add-watch' for Tramp files."

lisp/net/tramp-sh.el

@@ -1767,41 +1767,43 @@ ID-FORMAT valid values are `string' and `integer'."
   (with-parsed-tramp-file-name (expand-file-name directory) nil
     (when (and (not (tramp-compat-string-search "/" filename))
 	       (tramp-connectable-p v))
-      (all-completions
-       filename
-       (with-tramp-file-property v localname "file-name-all-completions"
-	 (let (result)
-	   ;; Get a list of directories and files, including reliably
-	   ;; tagging the directories with a trailing "/".  Because I
-	   ;; rock.  --daniel@danann.net
-	   (when (tramp-send-command-and-check
-		  v
-		  (if (tramp-get-remote-perl v)
-		      (progn
-			(tramp-maybe-send-script
-			 v tramp-perl-file-name-all-completions
-			 "tramp_perl_file_name_all_completions")
-			(format "tramp_perl_file_name_all_completions %s"
-				(tramp-shell-quote-argument localname)))
+    (unless (tramp-compat-string-search "/" filename)
+      (ignore-error file-missing
+	(all-completions
+	 filename
+	 (with-tramp-file-property v localname "file-name-all-completions"
+	   (let (result)
+	     ;; Get a list of directories and files, including
+	     ;; reliably tagging the directories with a trailing "/".
+	     ;; Because I rock.  --daniel@danann.net
+	     (when (tramp-send-command-and-check
+		    v
+		    (if (tramp-get-remote-perl v)
+			(progn
+			  (tramp-maybe-send-script
+			   v tramp-perl-file-name-all-completions
+			   "tramp_perl_file_name_all_completions")
+			  (format "tramp_perl_file_name_all_completions %s"
+				  (tramp-shell-quote-argument localname)))
 
-		    (format (concat
-			     "cd %s 2>&1 && %s -a 2>%s"
-			     " | while IFS= read f; do"
-			     " if %s -d \"$f\" 2>%s;"
-			     " then \\echo \"$f/\"; else \\echo \"$f\"; fi;"
-			     " done")
-			    (tramp-shell-quote-argument localname)
-			    (tramp-get-ls-command v)
-			    (tramp-get-remote-null-device v)
-			    (tramp-get-test-command v)
-			    (tramp-get-remote-null-device v))))
+		      (format (concat
+			       "cd %s 2>&1 && %s -a 2>%s"
+			       " | while IFS= read f; do"
+			       " if %s -d \"$f\" 2>%s;"
+			       " then \\echo \"$f/\"; else \\echo \"$f\"; fi;"
+			       " done")
+			      (tramp-shell-quote-argument localname)
+			      (tramp-get-ls-command v)
+			      (tramp-get-remote-null-device v)
+			      (tramp-get-test-command v)
+			      (tramp-get-remote-null-device v))))
 
-	     ;; Now grab the output.
-	     (with-current-buffer (tramp-get-buffer v)
-	       (goto-char (point-max))
-	       (while (zerop (forward-line -1))
-		 (push (buffer-substring (point) (line-end-position)) result)))
-	     result)))))))
+	       ;; Now grab the output.
+	       (with-current-buffer (tramp-get-buffer v)
+		 (goto-char (point-max))
+		 (while (zerop (forward-line -1))
+		   (push (buffer-substring (point) (line-end-position)) result)))
+	       result)))))))))
 
 ;; cp, mv and ln
 

lisp/net/tramp-smb.el

@@ -976,18 +976,20 @@ PRESERVE-UID-GID and PRESERVE-EXTENDED-ATTRIBUTES are completely ignored."
 ;; files.
 (defun tramp-smb-handle-file-name-all-completions (filename directory)
   "Like `file-name-all-completions' for Tramp files."
-  (all-completions
-   filename
-   (with-parsed-tramp-file-name (expand-file-name directory) nil
-     (with-tramp-file-property v localname "file-name-all-completions"
-       (delete-dups
-	(mapcar
-	 (lambda (x)
-	   (list
-	    (if (tramp-compat-string-search "d" (nth 1 x))
-		(file-name-as-directory (nth 0 x))
-	      (nth 0 x))))
-	 (tramp-smb-get-file-entries directory)))))))
+  (ignore-error file-missing
+    (all-completions
+     filename
+     (when (file-directory-p directory)
+       (with-parsed-tramp-file-name (expand-file-name directory) nil
+	 (with-tramp-file-property v localname "file-name-all-completions"
+	   (delete-dups
+	    (mapcar
+	     (lambda (x)
+	       (list
+		(if (tramp-compat-string-search "d" (nth 1 x))
+		    (file-name-as-directory (nth 0 x))
+		  (nth 0 x))))
+	     (tramp-smb-get-file-entries directory)))))))))
 
 (defun tramp-smb-handle-file-system-info (filename)
   "Like `file-system-info' for Tramp files."

lisp/net/tramp-sudoedit.el

@@ -460,26 +460,27 @@ the result will be a local, non-Tramp, file name."
 
 (defun tramp-sudoedit-handle-file-name-all-completions (filename directory)
   "Like `file-name-all-completions' for Tramp files."
-  (all-completions
-   filename
-   (with-parsed-tramp-file-name (expand-file-name directory) nil
-     (with-tramp-file-property v localname "file-name-all-completions"
-       (tramp-sudoedit-send-command
-	v "ls" "-a1" "--quoting-style=literal" "--show-control-chars"
-	(if (tramp-string-empty-or-nil-p localname)
-	    "" (file-name-unquote localname)))
-       (mapcar
-	(lambda (f)
-	  (if (ignore-errors (file-directory-p (expand-file-name f directory)))
-	      (file-name-as-directory f)
-	    f))
-	(delq
-	 nil
+  (ignore-error file-missing
+    (all-completions
+     filename
+     (with-parsed-tramp-file-name (expand-file-name directory) nil
+       (with-tramp-file-property v localname "file-name-all-completions"
+	 (tramp-sudoedit-send-command
+	  v "ls" "-a1" "--quoting-style=literal" "--show-control-chars"
+	  (if (tramp-string-empty-or-nil-p localname)
+	      "" (file-name-unquote localname)))
 	 (mapcar
-	  (lambda (l) (and (not (string-match-p (rx bol (* blank) eol) l)) l))
-	  (split-string
-	   (tramp-get-buffer-string (tramp-get-connection-buffer v))
-	   "\n" 'omit))))))))
+	  (lambda (f)
+	    (if (ignore-errors (file-directory-p (expand-file-name f directory)))
+		(file-name-as-directory f)
+	      f))
+	  (delq
+	   nil
+	   (mapcar
+	    (lambda (l) (and (not (string-match-p (rx bol (* blank) eol) l)) l))
+	    (split-string
+	     (tramp-get-buffer-string (tramp-get-connection-buffer v))
+	     "\n" 'omit)))))))))
 
 (defun tramp-sudoedit-handle-file-readable-p (filename)
   "Like `file-readable-p' for Tramp files."