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From: zimoun <zimon.toutoune@gmail.com>
To: Sarah Morgensen <iskarian@mgsn.dev>
Cc: 49196@debbugs.gnu.org,
	"Jérémy Korwin-Zmijowski" <jeremy@korwin-zmijowski.fr>
Subject: [bug#49196] [PATCH] import: utils: 'recursive-import' skips unfound packages
Date: Mon, 28 Jun 2021 13:42:26 +0200	[thread overview]
Message-ID: <CAJ3okZ10Ocf8Wedv1Ep4OiGBxrbFpNDi-_-037iy=XeezOHDjw@mail.gmail.com> (raw)
In-Reply-To: <868s2v7w4t.fsf_-_@mgsn.dev>

Hi,

On Sun, 27 Jun 2021 at 06:46, Sarah Morgensen <iskarian@mgsn.dev> wrote:

> A catch-all is fine, but we should at least report the actual error,
> even if it's not pretty:
>
>     (warning (G_ "Failed to import package ~s.~%  reason: ~s")
>                   package-name (exception-args c))

Well, why not, even if I am not convinced the reason is meaningful
because it is mostly an incorrect parsing which returns:

   reason: ("match" "no matching pattern" #f).

and I think it is better to display the complete 'args' instead of
extract the URL (package-name) from 'args'.

> However, if we want to move in the direction of proper error handling
> like guix/packages.scm and guix/ui.scm, we can do something like...

Thanks for the idea.  As explained patch#45984 [1], all the UI
messages must be in guix/scripts/import and not in guix/import and
therefore, indeed, error reporting needs to be unified between all the
importers and raised accordingly; that's what we are working on with
jeko (Jérémy Korwin-Zmijowski) as pair-programming exercise. :-)

1: <http://issues.guix.gnu.org/issue/45984>

> --8<---------------cut here---------------start------------->8---
> (define (report-import-error package-name error)
>   (cond
>    ((http-get-error? error)
>     [...]
>    (else
>     [...]))))
>
> (define* (go-module->guix-package* module-path
>                                    #:key (on-error report-import-error)
>                                    #:allow-other-keys #:rest args)
>   (with-exception-handler
>       (lambda (error)
>         (on-error module-path error)
>         (values #f '()))
>     (lambda () (apply go-module->guix-package module-path args))
>     #:unwind? #t))
>
> (define* (go-module-recursive-import package-name
>                                      #:key (goproxy "https://proxy.golang.org")
>                                      version
>                                      pin-versions?)
>   (recursive-import
>    package-name
>    #:repo->guix-package
>    (memoize
>     (lambda* (name #:key version repo)
>       (go-module->guix-package* name #:goproxy goproxy
>                                 #:version version
>                                 #:pin-versions? pin-versions?)))
>    #:guix-name go-module->guix-package-name
>    #:version version))
> --8<---------------cut here---------------end--------------->8---
>
> Looks like I got a little carried away :) But breaking out the error
> reporting gives us the future option of "plugging in" other error
> reporting strategies, such as collating them and returning them
> alongside a programmatic recursive import, or being able to provide a
> list of packages which failed to import at the end. This will be much
> more useful once we have a proper set of import error conditions.

Back to the initial patch, I think it is better to simply fix with the
minor improvements of v3 your proposed and let this last proposal for
#45984; feel free to comment there. ;-)

Cheers,
simon




  reply	other threads:[~2021-06-28 11:43 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-23 20:49 [bug#49196] [PATCH] import: utils: 'recursive-import' skips unfound packages Sarah Morgensen via Guix-patches via
2021-06-24 12:21 ` zimoun
2021-06-25  4:22   ` Sarah Morgensen via Guix-patches via
2021-06-25  6:53     ` zimoun
2021-06-25 16:47     ` zimoun
2021-06-25  4:48 ` [bug#49196] [PATCH v2] " Sarah Morgensen via Guix-patches via
2021-06-25 16:37 ` [bug#49196] [PATCH v3 1/3] import: go: Return false for package not found zimoun
2021-06-25 16:37   ` [bug#49196] [PATCH v3 2/3] import: utils: Skip not found packages zimoun
2021-06-25 16:37   ` [bug#49196] [PATCH v3 3/3] import: go: Improve error handling zimoun
2021-06-27  4:46     ` [bug#49196] [PATCH] import: utils: 'recursive-import' skips unfound packages Sarah Morgensen via Guix-patches via
2021-06-28 11:42       ` zimoun [this message]
2021-06-28 17:13         ` Sarah Morgensen via Guix-patches via
2021-06-28 16:20 ` [bug#49196] [PATCH v4 1/3] import: go: Return false for package not found zimoun
2021-06-28 16:20   ` [bug#49196] [PATCH v4 2/3] import: utils: Skip not found packages zimoun
2021-06-28 16:20   ` [bug#49196] [PATCH v4 3/3] import: go: Improve error handling zimoun
2021-06-29 10:52 ` [bug#49196] [PATCH v5 1/3] import: go: Return false for package not found zimoun
2021-06-29 10:52   ` [bug#49196] [PATCH v5 2/3] import: utils: Skip not found packages zimoun
2021-06-29 10:52   ` [bug#49196] [PATCH v5 3/3] import: go: Improve error handling zimoun
2021-08-06 18:04 ` [bug#49196] [PATCH v6 1/3] import: go: Return false for package not found Sarah Morgensen
2021-08-06 18:05   ` [bug#49196] [PATCH v6 2/3] import: utils: Skip not found packages Sarah Morgensen
2021-08-06 18:05   ` [bug#49196] [PATCH v6 3/3] import: go: Improve error handling Sarah Morgensen
2021-09-01 21:39   ` bug#49196: [PATCH] "guix import go" " Ludovic Courtès

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