bug#41114: 28.0.50; default-directory & buffer-file-name set to file:// URLs

bug#41114: 28.0.50; default-directory & buffer-file-name set to file:// URLs

[Tassilo Horn]

1. emacs -Q
2. (browse-url-emacs "file:///home/horn/.bashrc") ;; Adapt file name.

The result of the procedure is that `buffer-file-name' is
"file:///home/horn/.bashrc" and `default-directory' is
"file:///home/horn/".

According to the docs, both variables should be absolute file names, not
URLs.

The problems with those URLs are at least that:

- C-x C-f in that buffer will offer a completely broken initial
  directory when querying for a file or directory.  For me it is
  ~/Repos/el/emacs/src/file:/home/horn/file:/home/horn/.

- When call-process is called from that buffer it'll error that
  file:///home/horn/ cannot be set as current directory.


In GNU Emacs 28.0.50 (build 4, x86_64-pc-linux-gnu, GTK+ Version 3.24.20, cairo version 1.17.3)
 of 2020-05-06 built on thinkpad-t440p
Repository revision: 86fef6ab89ee54c6f78bc2064e55c5439e929827
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12008000
System Description: Arch Linux

Recent messages:
20200506T231237.545> nnimap read 0k from imap.fastmail.com
20200506T231240.944> Exiting summary buffer and applying spam rules
20200506T231240.963> Expiring articles...
20200506T231241.412> Expiring articles...done
20200506T231242.815> Saving Gnus registry (5077 entries) to ~/.gnus.d/.gnus.registry.eieio...
20200506T231243.315> Saving Gnus registry (size 5077) to ~/.gnus.d/.gnus.registry.eieio...done
20200506T231243.316> Saving /home/horn/.gnus.d/.newsrc.eld...
Saving file /home/horn/.gnus.d/.newsrc.eld...
Wrote /home/horn/.gnus.d/.newsrc.eld
20200506T231243.332> Saving /home/horn/.gnus.d/.newsrc.eld...done

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bug#41114: 28.0.50; default-directory & buffer-file-name set to file:// URLs

[Tassilo Horn]

Tassilo Horn <tsdh@gnu.org> writes:

> 1. emacs -Q
> 2. (browse-url-emacs "file:///home/horn/.bashrc") ;; Adapt file name.
>
> The result of the procedure is that `buffer-file-name' is
> "file:///home/horn/.bashrc" and `default-directory' is
> "file:///home/horn/".
>
> According to the docs, both variables should be absolute file names,
> not URLs.
>
> The problems with those URLs are at least that:
>
> - C-x C-f in that buffer will offer a completely broken initial
>   directory when querying for a file or directory.  For me it is
>   ~/Repos/el/emacs/src/file:/home/horn/file:/home/horn/.
>
> - When call-process is called from that buffer it'll error that
>   file:///home/horn/ cannot be set as current directory.

In addition, the file is read-only although I have write permissions for
my own .bashrc.  When I then C-x C-f ~/.bashrc, I get the message

  ~/.bashrc and file:///home/horn/.bashrc are the same file

so Emacs actually knows they are the same file.

Bye,
Tassilo

bug#41114: 28.0.50; default-directory & buffer-file-name set to file:// URLs

[Michael Albinus]

Tassilo Horn <tsdh@gnu.org> writes:

Hi Tassilo,

> 1. emacs -Q
> 2. (browse-url-emacs "file:///home/horn/.bashrc") ;; Adapt file name.
>
> The result of the procedure is that `buffer-file-name' is
> "file:///home/horn/.bashrc" and `default-directory' is
> "file:///home/horn/".
>
> According to the docs, both variables should be absolute file names, not
> URLs.
>
> The problems with those URLs are at least that:
>
> - C-x C-f in that buffer will offer a completely broken initial
>   directory when querying for a file or directory.  For me it is
>   ~/Repos/el/emacs/src/file:/home/horn/file:/home/horn/.
>
> - When call-process is called from that buffer it'll error that
>   file:///home/horn/ cannot be set as current directory.

While the problem still exists in the emacs-28 branch, it seems to be
fixed in master. Perhaps due to commit e06319b39d5, but I don't know.

So I propose to close the bug.

Best regards, Michael.

bug#41114: 28.0.50; default-directory & buffer-file-name set to file:// URLs

[Lars Ingebrigtsen]

Michael Albinus <michael.albinus@gmx.de> writes:

> While the problem still exists in the emacs-28 branch, it seems to be
> fixed in master. Perhaps due to commit e06319b39d5, but I don't know.
>
> So I propose to close the bug.

So I've now closed it.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

bug#41114: 28.0.50; default-directory & buffer-file-name set to file:// URLs

[Tassilo Horn]

Michael Albinus <michael.albinus@gmx.de> writes:

Hi!

>> 1. emacs -Q
>> 2. (browse-url-emacs "file:///home/horn/.bashrc") ;; Adapt file name.
>>
>> The result of the procedure is that `buffer-file-name' is
>> "file:///home/horn/.bashrc" and `default-directory' is
>> "file:///home/horn/".
>>
>> According to the docs, both variables should be absolute file names,
>> not URLs.
>
> While the problem still exists in the emacs-28 branch, it seems to be
> fixed in master. Perhaps due to commit e06319b39d5, but I don't know.

Indeed, it is fixed.

> So I propose to close the bug.

Yes, I see Lars already did so and that's obviously fine with me.

Thanks,
  Tassilo