Re: guix workflow not found?

[Ricardo Wurmus <rekado@elephly.net>]

Hi stuebinm,

> (I hope this is the right place for this question)

I’m not sure! :)

This list is fine, but we also have a dedicated GWL list: 
https://lists.gnu.org/archive/html/gwl-devel/

> I'm on a newly installed Guix machine, and have done the 
> following:
>
>   guix pull
>   guix install gwl
>   guix workflow
>
> The output of the last is:
>
>   guix: workflow: command not found
>   Try `guix --help' for more information
>
> As far as I can see from the gwl installation instructions [1], 
> this
> should work out of the box. However, from inside guix repl I 
> also
> cannot load the (guix scripts workflow) module, so I assume that
> perhaps the GUIX_EXTENSIONS_PATH variable is set incorrectly, 
> even if
> it says it shouldn't be necessary to set it manually when on a 
> guix
> system (I don't really know what to set it to, however ...).

I’m sorry about this!  The documentation really is not clear 
enough here.  Annoyingly, you currently do need to set 
GUIX_EXTENSIONS_PATH manually.  The reason for that is that Guix 
doesn’t yet do this automatically when using “guix pull”.

There is also a reason why the documentation is so vague: we 
hadn’t really come to consensus about the exact behavior of 
GUIX_EXTENSIONS_PATH.  I intended to update the documentation once 
we had this figured out.

For now, I suggest you set it like this:

    export 
    GUIX_EXTENSIONS_PATH=$GUIX_PROFILE/share/guix/extensions/

where GUIX_PROFILE is the name of the profile directory where you 
installed the “gwl” package (in your case that’s likely just 
“$HOME/.guix-profile”).

~~~

I should also note that there are a couple of known bugs in the 
GWL at this point, and I’m working on adding a DRMAA backend to 
submit workflow jobs to an HPC cluster.  There is no date for a 
new release yet, but I guess that in a few more weeks we will have 
accumulated enough fixes and features to announce a new release.

If you have a particular use-case in mind, I’d be very happy if 
you could tell us about it on gwl-devel, so that we can make sure 
the GWL grows in a direction that is beneficial for you.

-- 
Ricardo