Improve Tramp's copy-directory

* lisp/net/tramp-adb.el (tramp-adb-file-name-handler-alist):
* lisp/net/tramp-gvfs.el (tramp-gvfs-file-name-handler-alist):
* lisp/net/tramp-rclone.el (tramp-rclone-file-name-handler-alist):
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-file-name-handler-alist):
Add `copy-directory'.

* lisp/net/tramp.el (tramp-handle-copy-directory): New defun.

5 files changed, 18 insertions, 4 deletions

diff --git a/lisp/net/tramp-adb.el b/lisp/net/tramp-adb.el
index e3098190e2b..a4f5760f72e 100644
--- a/lisp/net/tramp-adb.el
+++ b/lisp/net/tramp-adb.el
@@ -94,7 +94,7 @@ It is used for TCP/IP devices."
   '((access-file . tramp-handle-access-file)
     (add-name-to-file . tramp-handle-add-name-to-file)
     ;; `byte-compiler-base-file-name' performed by default handler.
-    ;; `copy-directory' performed by default handler.
+    (copy-directory . tramp-handle-copy-directory)
     (copy-file . tramp-adb-handle-copy-file)
     (delete-directory . tramp-adb-handle-delete-directory)
     (delete-file . tramp-adb-handle-delete-file)
diff --git a/lisp/net/tramp-gvfs.el b/lisp/net/tramp-gvfs.el
index 6f5cade4c63..dbda24b9ac1 100644
--- a/lisp/net/tramp-gvfs.el
+++ b/lisp/net/tramp-gvfs.el
@@ -535,7 +535,7 @@ It has been changed in GVFS 1.14.")
   '((access-file . tramp-handle-access-file)
     (add-name-to-file . tramp-handle-add-name-to-file)
     ;; `byte-compiler-base-file-name' performed by default handler.
-    ;; `copy-directory' performed by default handler.
+    (copy-directory . tramp-handle-copy-directory)
     (copy-file . tramp-gvfs-handle-copy-file)
     (delete-directory . tramp-gvfs-handle-delete-directory)
     (delete-file . tramp-gvfs-handle-delete-file)
diff --git a/lisp/net/tramp-rclone.el b/lisp/net/tramp-rclone.el
index 2b3799ef008..56afdba7421 100644
--- a/lisp/net/tramp-rclone.el
+++ b/lisp/net/tramp-rclone.el
@@ -70,7 +70,7 @@
   '((access-file . tramp-handle-access-file)
     (add-name-to-file . tramp-handle-add-name-to-file)
     ;; `byte-compiler-base-file-name' performed by default handler.
-    ;; `copy-directory' performed by default handler.
+    (copy-directory . tramp-handle-copy-directory)
     (copy-file . tramp-rclone-handle-copy-file)
     (delete-directory . tramp-rclone-handle-delete-directory)
     (delete-file . tramp-rclone-handle-delete-file)
diff --git a/lisp/net/tramp-sudoedit.el b/lisp/net/tramp-sudoedit.el
index 2d9d7ff7892..e7a892c7465 100644
--- a/lisp/net/tramp-sudoedit.el
+++ b/lisp/net/tramp-sudoedit.el
@@ -66,7 +66,7 @@ See `tramp-actions-before-shell' for more info.")
   '((access-file . tramp-handle-access-file)
     (add-name-to-file . tramp-sudoedit-handle-add-name-to-file)
     (byte-compiler-base-file-name . ignore)
-    ;; `copy-directory' performed by default handler.
+    (copy-directory . tramp-handle-copy-directory)
     (copy-file . tramp-sudoedit-handle-copy-file)
     (delete-directory . tramp-sudoedit-handle-delete-directory)
     (delete-file . tramp-sudoedit-handle-delete-file)
diff --git a/lisp/net/tramp.el b/lisp/net/tramp.el
index 88ff36d98ea..acb5a93687c 100644
--- a/lisp/net/tramp.el
+++ b/lisp/net/tramp.el
@@ -3016,6 +3016,20 @@ User is always nil."
      filename newname 'ok-if-already-exists 'keep-time
      'preserve-uid-gid 'preserve-permissions)))
 
+(defun tramp-handle-copy-directory
+  (directory newname &optional keep-date parents copy-contents)
+  "Like `copy-directory' for Tramp files."
+  ;; `directory-files' creates `newname' before running this check.
+  ;; So we do it ourselves.
+  (unless (file-exists-p directory)
+    (tramp-error
+     (tramp-dissect-file-name directory) tramp-file-missing
+     "No such file or directory" directory))
+  ;; We must do it file-wise.
+  (tramp-run-real-handler
+   'copy-directory
+   (list directory newname keep-date parents copy-contents)))
+
 (defun tramp-handle-directory-file-name (directory)
   "Like `directory-file-name' for Tramp files."
   ;; If localname component of filename is "/", leave it unchanged.