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[debbugs-tracker] bug#26987: closed (guix pull without guile-ssh.)

From: GNU bug Tracking System
Subject: [debbugs-tracker] bug#26987: closed (guix pull without guile-ssh.)
Date: Thu, 25 May 2017 12:34:01 +0000

Your message dated Thu, 25 May 2017 14:33:04 +0200
with message-id <address@hidden>
and subject line Re: bug#26987: [PATCH 2/2] build: pull: Fix compilation list 
has caused the debbugs.gnu.org bug report #26987,
regarding guix pull without guile-ssh.
to be marked as done.

(If you believe you have received this mail in error, please contact

26987: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=26987
GNU Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: guix pull without guile-ssh. Date: Thu, 18 May 2017 21:53:34 +0200 User-agent: mu4e 0.9.18; emacs 25.2.1

If Guile-SSH is not detected, depends-on-guile-ssh? will be called here:

--8<---------------cut here---------------start------------->8---
(guix build pull)

(let* ((files (remove (if (false-if-exception
                           (resolve-interface '(ssh session)))
                          (const #f)
                      (all-scheme-files out)))
--8<---------------cut here---------------end--------------->8---

Thus, source-module-closure is called with a file. However,
source-module-closure is expecting a module list like '((guix ...)).

This result in the following error while running guix pull:

--8<---------------cut here---------------start------------->8---
In ./guix/modules.scm:
    118:4  0 (module-closure _ #:select? _ #:dependencies _)

./guix/modules.scm:118:4: In procedure module-closure:
./guix/modules.scm:118:4: Throw to key `match-error' with args `("match" "no 
matching pattern" 
builder for `/gnu/store/lq6ga13k75ljrdnqam9jm1q92cv4g0pm-guix-latest.drv' 
failed with exit code 1
--8<---------------cut here---------------end--------------->8---

I'm not sure how to fix it.



--- End Message ---
--- Begin Message --- Subject: Re: bug#26987: [PATCH 2/2] build: pull: Fix compilation list construction. Date: Thu, 25 May 2017 14:33:04 +0200 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)
Mathieu Othacehe <address@hidden> skribis:

>> I'm having a hard time tring to understand ,trace output.
> I get why, it's because guile-ssh is not in my %load-path. So loading
> "ssh/session.scm" fails in "source-module-dependencies".
> It's a bit of a vicious circle here : if resolve-interface '(ssh
> session) fails, depends-on-guile-ssh? will fail too.
> I'm note sure we can depend on source-module-closure to do the job here.

I believe this is fixed by commit
20ed093977cc80ba1729c38e05ae7955a38069a6, which follows a modification
to the ‘source-module-closure’ so that callers can catch
missing-dependency errors.

Please let me know what you think!

After that, you should be able to reinstate the (guix git) commit,
provided build-aux/build-self.scm does:

  (define guile-git
    (package-for-current-guile "guile-git"

and passes that down to ‘build-guix’.


--- End Message ---

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