Absolute path of source file

Absolute path of source file

[reza]

Hi List

How can I get the absolute path to a source file from itself. In bash
this would look like something along the lines

    realpath $(dirname $0)

but I could not figure out how to achieve this in guile.

Thanks for any hints!
Cheers,
Reza

Re: Absolute path of source file

[Retropikzel]

On Mon, 23 Sep 2024 15:35:03 +0000
reza <reza@housseini.me> wrote:

> Hi List
> 
> How can I get the absolute path to a source file from itself. In bash
> this would look like something along the lines
> 
>     realpath $(dirname $0)
> 
> but I could not figure out how to achieve this in guile.
> 
> Thanks for any hints!
> Cheers,
> Reza
> 

Hi! Might example from here:
https://www.gnu.org/software/guile/manual/guile.html#Load-Paths-1

work?

    (dirname (current-filename))

Re: Absolute path of source file

[reza]

Hi Retropikzel

Perfect, works out of the box!
I missed this part in the manual, just saw that it is in chapter "Source
Properties" where I would never have guessed to look at.
Thanks very much,
Reza

> On Mon, 23 Sep 2024 15:35:03 +0000
> reza <reza@housseini.me> wrote:
>
>> Hi List
>> 
>> How can I get the absolute path to a source file from itself. In bash
>> this would look like something along the lines
>> 
>>     realpath $(dirname $0)
>> 
>> but I could not figure out how to achieve this in guile.
>> 
>> Thanks for any hints!
>> Cheers,
>> Reza
>> 
>
> Hi! Might example from here:
> https://www.gnu.org/software/guile/manual/guile.html#Load-Paths-1
>
> work?
>
>     (dirname (current-filename))

Re: Absolute path of source file

[Zelphir Kaltstahl]

Hello reza!

On 23.09.24 17:47, reza wrote:
> Hi Retropikzel
>
> Perfect, works out of the box!
> I missed this part in the manual, just saw that it is in chapter "Source
> Properties" where I would never have guessed to look at.
> Thanks very much,
> Reza
>
>> On Mon, 23 Sep 2024 15:35:03 +0000
>> reza<reza@housseini.me>  wrote:
>>
>>> Hi List
>>>
>>> How can I get the absolute path to a source file from itself. In bash
>>> this would look like something along the lines
>>>
>>>      realpath $(dirname $0)
>>>
>>> but I could not figure out how to achieve this in guile.
>>>
>>> Thanks for any hints!
>>> Cheers,
>>> Reza
>>>
>> Hi! Might example from here:
>> https://www.gnu.org/software/guile/manual/guile.html#Load-Paths-1
>>
>> work?
>>
>>      (dirname (current-filename))

I just want to add, that in most cases you can probably make things work using 
the `guile -L` argument and naming the files of guile modules according to the 
module defined in them. It has been a long time, since I had to reach for 
something like `(dirname (current-filename))`. Of course there might be cases, 
where you want to have that directory as a string in your code or so. I am only 
writing this, because it is often brought up in a context of adding things to 
the load path, where it should not be necessary.

For example see: 
https://codeberg.org/ZelphirKaltstahl/guile-algorithms/src/commit/97f29e9a9414bd068e9b6e0745a768ad64a10dac/readme.md. 
And if that is too much of a hassle, you could create a makefile, that runs 
either the program or a guile shell that has the directories added to the load 
path. Something like 
https://codeberg.org/ZelphirKaltstahl/guile-algorithms/src/commit/97f29e9a9414bd068e9b6e0745a768ad64a10dac/graphs/Makefile.

Best regards, Zelphir

-- 
repositories:https://notabug.org/ZelphirKaltstahl,https://codeberg.org/ZelphirKaltstahl