hostname and filename as frame title

hostname and filename as frame title

[Suvayu Ali]

Hi everyone,

I do a lot of remote editing on several remote machines. I recently came 
across the variable `frame-title-format' and was wondering if there is a 
way to set the hostname of the file being edited and the file name as 
the frame title? Something like file@remote-host.

I don't even know where to start looking, any pointers would be awesome. :)

-- 
Suvayu

Open source is the future. It sets us free.

Re: hostname and filename as frame title

[Michael Albinus]

Suvayu Ali <fatkasuvayu+linux@gmail.com> writes:

> Hi everyone,

Hi,

>
> I do a lot of remote editing on several remote machines. I recently
> came across the variable `frame-title-format' and was wondering if
> there is a way to set the hostname of the file being edited and the
> file name as the frame title? Something like file@remote-host.
>
> I don't even know where to start looking, any pointers would be awesome. :)

What about this:

(setq-default
 frame-title-format
 '(:eval
   (format "%s@%s:%s"
	   (or (file-remote-p default-directory 'user) user-login-name)
	   (or (file-remote-p default-directory 'host) system-name)
	   (file-name-nondirectory (or (buffer-file-name) default-directory)))))

It needs Emacs 23.1, due to the parameters of file-remote-p.

Best regards, Michael.

Re: hostname and filename as frame title

[Suvayu Ali]

Hi Michael,

On Friday 12 February 2010 01:35 AM, Michael Albinus wrote:
> Suvayu Ali<fatkasuvayu+linux@gmail.com>  writes:
>>
>> I do a lot of remote editing on several remote machines. I recently
>> came across the variable `frame-title-format' and was wondering if
>> there is a way to set the hostname of the file being edited and the
>> file name as the frame title? Something like file@remote-host.
>>
>> I don't even know where to start looking, any pointers would be awesome. :)
>
> What about this:
>
> (setq-default
>   frame-title-format
>   '(:eval
>     (format "%s@%s:%s"
> 	   (or (file-remote-p default-directory 'user) user-login-name)
> 	   (or (file-remote-p default-directory 'host) system-name)
> 	   (file-name-nondirectory (or (buffer-file-name) default-directory)))))

Works wonders! I am on Emacs 23.1. ;)

However because of all the different machines and different usernames, I 
rely on my ~/.ssh/config to specify the username on the remote machine. 
So I open a remote file like this,

`/ssh:remote-host-alias:/path/to/file'

Probably that is why the frame title shows up as,

`local-user@remote-host:file'

But I think I can live with that. Thanks a lot Michael. :)

>
> Best regards, Michael.

-- 
Suvayu

Open source is the future. It sets us free.

Re: hostname and filename as frame title

[Michael Albinus]

Suvayu Ali <fatkasuvayu+linux@gmail.com> writes:

> Hi Michael,

Hi,

> However because of all the different machines and different usernames, I 
> rely on my ~/.ssh/config to specify the username on the remote machine. 
> So I open a remote file like this,
>
> `/ssh:remote-host-alias:/path/to/file'
>
> Probably that is why the frame title shows up as,
>
> `local-user@remote-host:file'

Yes. Tramp does not know the application specific configuration.

> But I think I can live with that. Thanks a lot Michael. :)

So either you obmit the user part in the frame title (it is of no use
for you then), or you write your own small function which extracts it
from ~/.ssh/config.

Best regards, Michael.

Re: hostname and filename as frame title

[Suvayu Ali]

On Friday 12 February 2010 03:58 AM, Michael Albinus wrote:
> Suvayu Ali<fatkasuvayu+linux@gmail.com>  writes:
>
>> Hi Michael,
>
> Hi,
>
>> However because of all the different machines and different usernames, I
>> rely on my ~/.ssh/config to specify the username on the remote machine.
>> So I open a remote file like this,
>>
>> `/ssh:remote-host-alias:/path/to/file'
>>
>> Probably that is why the frame title shows up as,
>>
>> `local-user@remote-host:file'
>
> Yes. Tramp does not know the application specific configuration.
>
>> But I think I can live with that. Thanks a lot Michael. :)
>
> So either you obmit the user part in the frame title (it is of no use
> for you then), or you write your own small function which extracts it
> from ~/.ssh/config.

Yes I ended up commenting that one out. :) Trying to write a function to 
extract the username from ~/.ssh/config would be a good exercise in lisp 
for a newbie like me. Thanks, I appreciate the help.

>
> Best regards, Michael.


-- 
Suvayu

Open source is the future. It sets us free.

Re: hostname and filename as frame title

[Suvayu Ali]

On Friday 12 February 2010 01:35 AM, Michael Albinus wrote:
> Suvayu Ali<fatkasuvayu+linux@gmail.com>  writes:
>
>> Hi everyone,
>
> Hi,
>
>>
>> I do a lot of remote editing on several remote machines. I recently
>> came across the variable `frame-title-format' and was wondering if
>> there is a way to set the hostname of the file being edited and the
>> file name as the frame title? Something like file@remote-host.
>>
>> I don't even know where to start looking, any pointers would be awesome. :)
>
> What about this:
>
> (setq-default
>   frame-title-format
>   '(:eval
>     (format "%s@%s:%s"
> 	   (or (file-remote-p default-directory 'user) user-login-name)
> 	   (or (file-remote-p default-directory 'host) system-name)
> 	   (file-name-nondirectory (or (buffer-file-name) default-directory)))))
>

I ended up using something like this. This sets the frame-title to just 
the buffer-name for special buffers and uses the buffer name as set by 
uniquify when visiting files with same names. Maybe some one else will 
find this useful.

> (setq-default
>  frame-title-format
>  '(:eval
>    (if (string-match-p "^\\*.+\\*$" (buffer-name))
>        "%b"
>      (format "%s:%s"
> 	     (or (file-remote-p default-directory 'host) system-name)
> 	     (buffer-name)))))

:)
-- 
Suvayu

Open source is the future. It sets us free.