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bug#17425: 24.4.50; tramp-cleanup-this-connection on push-button

From: Michael Albinus
Subject: bug#17425: 24.4.50; tramp-cleanup-this-connection on push-button
Date: Thu, 08 May 2014 19:04:22 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux)

Glenn Morris <address@hidden> writes:

> Michael Albinus wrote:
>>> !   (default-directory
>>> !           (if (and (not (file-remote-p default-directory))
>>> !                    (file-accessible-directory-p default-directory))
>>>                 default-directory
>>>               (expand-file-name "~/"))))
>> I haven't checked further, but wouldn't this break url-handlers? See
>> (progn
>>   (url-handler-mode 1)
>>   (file-remote-p "http://address@hidden/";))
> I don't see how? Default-directory above is the one that browse-url uses
> for the external browser that it starts.

Maybe I'm overreacting, but when you touch default-directory, file
operations from url-handlers might not work anymore.

(let ((default-directory "http://debbugs.gnu.org/";))
  (url-handler-mode 1)
  (expand-file-name "17245"))

returns a valid url which could be passed to browse-url.

I have no idea, whether browse-url and the operations in url-handlers
will be called together, 'tho. Maybe never.

But I have seen too many libraries which massage Tramp internals in
unexpected ways. So my personal alarm bell is ringing.

Feel free to ignore it.

Best regards, Michael.

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