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authorMichael Albinus <michael.albinus@gmx.de>2015-10-28 15:31:40 +0100
committerMichael Albinus <michael.albinus@gmx.de>2015-10-28 15:31:40 +0100
commit9fd61a5aa2961d18ae00700bcbb527e5a643f3a2 (patch)
tree122febd59386f031aac20784ddb656e3e7c333e2 /lisp
parent1e2ed2687ad35d7a3efee1ef1d482d595eb0879f (diff)
downloademacs-9fd61a5aa2961d18ae00700bcbb527e5a643f3a2.tar.gz
Avoid using `add-to-list' on a let-local var in tramp-smb.el
* lisp/net/tramp-compat.el (tramp-compat-delete-dups): New defun. * lisp/net/tramp-smb.el (tramp-smb-handle-directory-files): Use it.
Diffstat (limited to 'lisp')
-rw-r--r--lisp/net/tramp-compat.el10
-rw-r--r--lisp/net/tramp-smb.el6
2 files changed, 12 insertions, 4 deletions
diff --git a/lisp/net/tramp-compat.el b/lisp/net/tramp-compat.el
index 7157ac25fa2..c57102881bf 100644
--- a/lisp/net/tramp-compat.el
+++ b/lisp/net/tramp-compat.el
@@ -592,6 +592,16 @@ and replace a sub-expression, e.g.
(unless (fboundp 'format-message)
(defalias 'format-message 'format))
+;; `delete-dups' does not exist in XEmacs 21.4.
+(if (fboundp 'delete-dups)
+ (defalias 'tramp-compat-delete-dups 'delete-dups)
+ (defun tramp-compat-delete-dups (list)
+ "Destructively remove `equal' duplicates from LIST.
+Store the result in LIST and return it. LIST must be a proper list.
+Of several `equal' occurrences of an element in LIST, the first
+one is kept."
+ (cl-delete-duplicates list '(:test equal :from-end) nil)))
+
(add-hook 'tramp-unload-hook
(lambda ()
(unload-feature 'tramp-loaddefs 'force)
diff --git a/lisp/net/tramp-smb.el b/lisp/net/tramp-smb.el
index 5910d1fd3a4..c95679584dc 100644
--- a/lisp/net/tramp-smb.el
+++ b/lisp/net/tramp-smb.el
@@ -649,8 +649,7 @@ PRESERVE-UID-GID and PRESERVE-EXTENDED-ATTRIBUTES are completely ignored."
(directory &optional full match nosort)
"Like `directory-files' for Tramp files."
(let ((result (mapcar 'directory-file-name
- (file-name-all-completions "" directory)))
- res)
+ (file-name-all-completions "" directory))))
;; Discriminate with regexp.
(when match
(setq result
@@ -666,8 +665,7 @@ PRESERVE-UID-GID and PRESERVE-EXTENDED-ATTRIBUTES are completely ignored."
;; Sort them if necessary.
(unless nosort (setq result (sort result 'string-lessp)))
;; Remove double entries.
- (dolist (elt result res)
- (add-to-list 'res elt 'append))))
+ (tramp-compat-delete-dups result)))
(defun tramp-smb-handle-expand-file-name (name &optional dir)
"Like `expand-file-name' for Tramp files."