Re: The usability of Guix configurations

[julien lepiller]

Le 2017-11-07 15:11, myglc2 a écrit :
> On 11/07/2017 at 14:13 julien lepiller writes:
> > This new version outputs something like this :
> >
> >
> > guix system: error: failed to load 'vm-image.tmpl':
> > vm-image.tmpl:6:0: vm-image.tmpl:6:0: Package module "abc" does not
> > exist.
> > Check the "use-package-modules" line in your configuration.
>
> Thanks Julien, I tried the patch and it works for me. I think it is a
> great improvement.
>
> Small suggestion: is it feasible for the last line to read:
>
> Please add a module containing "abc" to the "use-package-modules" line
> in your configuration.

Wouldn't that be confusing though?

Maybe you're confused because modules have the same name as some 
packages,
but there is no relation between a package name and its module in 
general.
In (use-package-modules abc), abc refers to a file named 
'gnu/packages/abc.go'
and the error happens when this file doesn't exist.

Maybe that last line could be a hint as to how to find the correct 
module, though,
such as:

guix system: error: failed to load 'vm-image.tmpl':
vm-image.tmpl:6:0: vm-image.tmpl:6:0: Package module "abc" does not 
exist.
Check the "use-package-modules" line in your configuration.
Hint: You may use `guix package -s foo` to search for foo's location.
Hint: If you get the line "location: gnu/packages/ssh.scm:174:2",
Hint: you want to add ssh in use-package-modules.

And similarly with services:

guix system: error: failed to load 'vm-image.tmpl':
vm-image.tmpl:7:0: vm-image.tmpl:7:0: Service module "abc" does not 
exist.
Check the "use-service-modules" line in your configuration.
Hint: You may use `guix system search foo` to search for foo's location.
Hint: If you get the line "location: gnu/services/ssh.scm:188:2",
Hint: you want to add ssh in use-service-modules.

Maybe that's too much?

> TIA - George

0001-Catch-use-modules-errors-in-configuration.patch
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