GNU bug report logs - #72925
Adding JPM package for Janet

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From: Omar Bassam <omar.bassam88 <at> gmail.com>
To: Suhail Singh <suhailsingh247 <at> gmail.com>
Cc: Sharlatan Hellseher <sharlatanus <at> gmail.com>, 72925 <at> debbugs.gnu.org, Munyoki Kilyungi <me <at> bonfacemunyoki.com>, Katherine Cox-Buday <cox.katherine.e+guix <at> gmail.com>, Guillaume Le Vaillant <glv <at> posteo.net>, jgart <jgart <at> dismail.de>
Subject: [bug#72925] [PATCH v3] adding jpm package
Date: Wed, 2 Oct 2024 22:12:56 +0300

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Hi Suhail,

Sorry if some of my instructions were not clear before. I'll try to explain
in more detail.

On Wed, 2 Oct 2024 at 21:21, Suhail Singh <suhailsingh247 <at> gmail.com> wrote:

> Omar Bassam <omar.bassam88 <at> gmail.com> writes:
>
> > This is expected as the jpm install command is meant to install janet
> > packages globally which would be impure.
>
> It would help for this to be noted in some manner.  Be it in the
> description or as comments in the package description.
>

I don't think this needs to be said because all package managers installed
via guix have this issue.
This is a common Nix/Guix issue that I struggled a lot to understand at the
beginning.
Also, there is no one way to solve this because jpm gives you the freedom
to install packages on a user level
or on a project only level.


> > To install janet packages to your local project directory, you need to
> add
> > the "-l" flag as follows:
> > jpm install -l sh
>
> Does this work for you (for jpm installed via guix)?  If so, could you
> please confirm the set of dependencies you have installed in the guix
> profile for the above to work?  If not, could you provide an example
> invocation that I could test out which would allow me to install a janet
> dependency in a local directory?
>

Do you still get the same error?
Yes, this does work for me without any other dependencies. I am using guix
on ubuntu with guix shell.
It should create a "jpm_tree" folder in the directory where you invoked the
command from.
Alternatively you can set the "JANET_TREE" environment variable before
invoking the command. For example:
JANET_TREE=~/.jpm jpm install sh

Also, note that janet is a lisp that compiles to C. So, if the library you
are trying to install has other dependencies,
you'll need to have those available in your profile/shell.



> > Maybe in the future we can add a "janet-build-system" that will allow us
> to
> > add janet packages to the guix repository.
>
> That would be helpful.
>
Yes, indeed. I don't have much experience about that yet. But I plan to do
so in the future.

> --
> Suhail
>

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