* lisp/net/tramp-gvfs.el (tramp-gvfs-mount-spec, tramp-synce-list-devices):

* lisp/net/tramp-smb.el (tramp-smb-get-file-entries):
* lisp/net/tramp-sh.el (tramp-sh-handle-insert-directory)
(tramp-compute-multi-hops): Fix misuses of `add-to-list'.

4 files changed, 46 insertions, 52 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 468f7c7d70d..a9d62d17b21 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,10 @@
 2013-09-03  Stefan Monnier  <monnier@iro.umontreal.ca>
 
+        * net/tramp-gvfs.el (tramp-gvfs-mount-spec, tramp-synce-list-devices): 
+        * net/tramp-smb.el (tramp-smb-get-file-entries):
+        * net/tramp-sh.el (tramp-sh-handle-insert-directory)
+        (tramp-compute-multi-hops): Fix misuses of `add-to-list'.
+
         * net/eww.el (eww-display-raw): Remove unused argument `charset'.
         Update call to it.
         (eww-change-select): Remove unused var `properties'.
diff --git a/lisp/net/tramp-gvfs.el b/lisp/net/tramp-gvfs.el
index 9ae352eccc1..e70400af820 100644
--- a/lisp/net/tramp-gvfs.el
+++ b/lisp/net/tramp-gvfs.el
@@ -1417,47 +1417,36 @@ It was \"a(say)\", but has changed to \"a{sv})\"."
          (port (tramp-file-name-port vec))
          (localname (tramp-file-name-localname vec))
          (ssl (if (string-match "^davs" method) "true" "false"))
-         (mount-spec '(:array))
-         (mount-pref "/"))
-
-    (setq
-     mount-spec
-     (append
-      mount-spec
-      (cond
-       ((string-equal "smb" method)
-        (string-match "^/?\\([^/]+\\)" localname)
-        (list (tramp-gvfs-mount-spec-entry "type" "smb-share")
-              (tramp-gvfs-mount-spec-entry "server" host)
-              (tramp-gvfs-mount-spec-entry "share" (match-string 1 localname))))
-       ((string-equal "obex" method)
-        (list (tramp-gvfs-mount-spec-entry "type" method)
-              (tramp-gvfs-mount-spec-entry
-               "host" (concat "[" (tramp-bluez-address host) "]"))))
-       ((string-match "^dav" method)
-        (list (tramp-gvfs-mount-spec-entry "type" "dav")
-              (tramp-gvfs-mount-spec-entry "host" host)
-              (tramp-gvfs-mount-spec-entry "ssl" ssl)))
-       (t
-        (list (tramp-gvfs-mount-spec-entry "type" method)
-              (tramp-gvfs-mount-spec-entry "host" host))))))
-
-    (when user
-      (add-to-list
-       'mount-spec (tramp-gvfs-mount-spec-entry "user" user) 'append))
-
-    (when domain
-      (add-to-list
-       'mount-spec (tramp-gvfs-mount-spec-entry "domain" domain) 'append))
-
-    (when port
-      (add-to-list
-       'mount-spec (tramp-gvfs-mount-spec-entry "port" (number-to-string port))
-       'append))
-
-    (when (and (string-match "^dav" method)
-               (string-match "^/?[^/]+" localname))
-      (setq mount-pref (match-string 0 localname)))
+         (mount-spec
+          `(:array
+            ,@(cond
+               ((string-equal "smb" method)
+                (string-match "^/?\\([^/]+\\)" localname)
+                (list (tramp-gvfs-mount-spec-entry "type" "smb-share")
+                      (tramp-gvfs-mount-spec-entry "server" host)
+                      (tramp-gvfs-mount-spec-entry "share" (match-string 1 localname))))
+               ((string-equal "obex" method)
+                (list (tramp-gvfs-mount-spec-entry "type" method)
+                      (tramp-gvfs-mount-spec-entry
+                       "host" (concat "[" (tramp-bluez-address host) "]"))))
+               ((string-match "\\`dav" method)
+                (list (tramp-gvfs-mount-spec-entry "type" "dav")
+                      (tramp-gvfs-mount-spec-entry "host" host)
+                      (tramp-gvfs-mount-spec-entry "ssl" ssl)))
+               (t
+                (list (tramp-gvfs-mount-spec-entry "type" method)
+                      (tramp-gvfs-mount-spec-entry "host" host))))
+            ,@(when user
+                (list (tramp-gvfs-mount-spec-entry "user" user)))
+            ,@(when domain
+                (list (tramp-gvfs-mount-spec-entry "domain" domain)))
+            ,@(when port
+                (list (tramp-gvfs-mount-spec-entry "port" (number-to-string port))))))
+         (mount-pref
+          (if (and (string-match "\\`dav" method)
+                   (string-match "^/?[^/]+" localname))
+              (match-string 0 localname)
+            "/")))
 
     ;; Return.
     `(:struct ,(tramp-gvfs-dbus-string-to-byte-array mount-pref) ,mount-spec)))
@@ -1718,11 +1707,11 @@ They are retrieved from the hal daemon."
       (when (with-tramp-dbus-call-method tramp-gvfs-dbus-event-vector t
               :system tramp-hal-service device tramp-hal-interface-device
               "PropertyExists" "sync.plugin")
-        (add-to-list
-         'tramp-synce-devices
+        (pushnew
          (with-tramp-dbus-call-method tramp-gvfs-dbus-event-vector t
            :system tramp-hal-service device tramp-hal-interface-device
-           "GetPropertyString" "pda.pocketpc.name"))))
+           "GetPropertyString" "pda.pocketpc.name")
+         tramp-synce-devices :test #'equal)))
     (tramp-message tramp-gvfs-dbus-event-vector 10 "%s" tramp-synce-devices)
     tramp-synce-devices))
 
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index ac131765189..8ca94122af1 100644
--- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -2500,8 +2500,8 @@ This is like `dired-recursive-delete-directory' for Tramp files."
                         'file-name-nondirectory (list localname)))
         (setq localname (tramp-run-real-handler
                          'file-name-directory (list localname))))
-      (unless full-directory-p
-        (setq switches (add-to-list 'switches "-d" 'append)))
+      (unless (or full-directory-p (member "-d" switches))
+        (setq switches (append switches '("-d"))))
       (setq switches (mapconcat 'tramp-shell-quote-argument switches " "))
       (when wildcard
         (setq switches (concat switches " " wildcard)))
@@ -4252,7 +4252,7 @@ Gateway hops are already opened."
                   ?h (or (tramp-file-name-host (car target-alist)) ""))))
           (with-parsed-tramp-file-name proxy l
             ;; Add the hop.
-            (add-to-list 'target-alist l)
+            (pushnew l target-alist :test #'equal)
             ;; Start next search.
             (setq choices tramp-default-proxies-alist)))))
 
@@ -4270,11 +4270,11 @@ Gateway hops are already opened."
            vec 'file-error
            "Connection `%s' is not supported for gateway access." hop))
         ;; Open the gateway connection.
-        (add-to-list
-         'target-alist
+        (pushnew
          (vector
           (tramp-file-name-method hop) (tramp-file-name-user hop)
-          (tramp-compat-funcall 'tramp-gw-open-connection vec gw hop) nil nil))
+          (tramp-compat-funcall 'tramp-gw-open-connection vec gw hop) nil nil)
+         target-alist :test #'equal)
         ;; For the password prompt, we need the correct values.
         ;; Therefore, we must remember the gateway vector.  But we
         ;; cannot do it as connection property, because it shouldn't
diff --git a/lisp/net/tramp-smb.el b/lisp/net/tramp-smb.el
index 569bfb9c874..f05a54f46f7 100644
--- a/lisp/net/tramp-smb.el
+++ b/lisp/net/tramp-smb.el
@@ -1364,14 +1364,14 @@ Result is a list of (LOCALNAME MODE SIZE MONTH DAY TIME YEAR)."
               (while (not (eobp))
                 (setq entry (tramp-smb-read-file-entry share))
                 (forward-line)
-                (when entry (add-to-list 'res entry))))
+                (when entry (pushnew entry res :test #'equal))))
 
             ;; Cache share entries.
             (unless share
               (tramp-set-connection-property v "share-cache" res)))
 
           ;; Add directory itself.
-          (add-to-list 'res '("" "drwxrwxrwx" 0 (0 0)))
+          (pushnew '("" "drwxrwxrwx" 0 (0 0)) res :test #'equal)
 
           ;; There's a very strange error (debugged with XEmacs 21.4.14)
           ;; If there's no short delay, it returns nil.  No idea about.