Re: master 7a5f2b79e9: ; * lisp/dired.el (dired-mouse-drag): Create local copy if file is remote.

[Michael Albinus]

Po Lu <luangruo@yahoo.com> writes:

>> Reading the code, it looks to me like you need to remove the local copy
>> later. Otherwise, it will trash your temp directory.
>
> Ah, thanks.  I always thought the old file would be removed
> automatically after a while (i.e. when a new file is created).
>
> The problem is that there's no way to know when the drop target has
> finished opening the file, so the best solution is probably to remove
> the old file when a new file is created.
>
> WDYT?

You must remember the file name of the "old" local copy, because it is
random.

--8<---------------cut here---------------start------------->8---
(file-local-copy "/ssh::.emacs")
=> "/tmp/tramp.k2vQK0"
--8<---------------cut here---------------end--------------->8---

An (undocumented) possibility would be to let-bind
tramp-temp-name-prefix to something else. Then you could easily identify
your own temp files.

--8<---------------cut here---------------start------------->8---
(let ((tramp-temp-name-prefix "my-own-prefix."))
  (file-local-copy "/ssh::.emacs"))
=> "/tmp/my-own-prefix.HDfgDZ"
--8<---------------cut here---------------end--------------->8---

Best regards, Michael.