diff mbox series

[bug#65352] Fix time-machine and network

Message ID 87edjep3xq.fsf@gmail.com
State New
Headers
Series [bug#65352] Fix time-machine and network |

Commit Message

Simon Tournier Sept. 4, 2023, 11:34 a.m. UTC 
Hi Ludo,

On Mon, 04 Sep 2023 at 10:49, Ludovic Courtès <ludo@gnu.org> wrote:

> Houston, we have a problem:

This is Houston. Say again, please. :-)


> diff --git a/guix/git.scm b/guix/git.scm
> index ebe2600209..5fa604f9a0 100644
> --- a/guix/git.scm
> +++ b/guix/git.scm

> +      (()
> +       (resolve-reference repository
> +                          '(symref . "refs/remotes/origin/HEAD"))))))

The fix is to simple return #false when the reference is not resolved.

Well, let me now if the attached patch fixes the issue.

Cheers,
simon

Comments

Maxim Cournoyer Sept. 5, 2023, 8:33 p.m. UTC | #1 
Hi Simon,

Simon Tournier <zimon.toutoune@gmail.com> writes:

[...]

>>From e1fdd6748ebb1088fb805d77cfb176758bab5618 Mon Sep 17 00:00:00 2001
> Message-Id: <e1fdd6748ebb1088fb805d77cfb176758bab5618.1693826861.git.zimon.toutoune@gmail.com>
> From: Simon Tournier <zimon.toutoune@gmail.com>
> Date: Mon, 4 Sep 2023 13:23:59 +0200
> Subject: [PATCH] guix: git: Add default case when resolving reference.
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> Reported by Ludovic Courtès <ludo@gnu.org>.
>
> * guix/git.scm (resolve-reference): Return #false when the reference is not
> resolved.
> ---
>  guix/git.scm | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/guix/git.scm b/guix/git.scm
> index ebe2600209d4..d4076d4a0a0c 100644
> --- a/guix/git.scm
> +++ b/guix/git.scm
> @@ -282,7 +282,8 @@ (define (resolve-reference repository ref)
>           (if (= OBJ-TAG (object-type obj))
>               (object-lookup repository
>                              (tag-target-id (tag-lookup repository oid)))
> -             obj))))))
> +             obj)))
> +      (_ #f))))

This doesn't look right to me; the contract of resolve-reference is to
accept a REF, which is well defined.  It's not supposed fall into cracks
and return #f.  The problem lies elsewhere.
Simon Tournier Sept. 5, 2023, 8:48 p.m. UTC | #2 
Hi Maxim,

On Tue, 05 Sep 2023 at 16:33, Maxim Cournoyer <maxim.cournoyer@gmail.com> wrote:

>> -             obj))))))
>> +             obj)))
>> +      (_ #f))))
>
> This doesn't look right to me; the contract of resolve-reference is to
> accept a REF, which is well defined.  It's not supposed fall into cracks
> and return #f.  The problem lies elsewhere.

Yes, the problem lies elsewhere!  By the code you introduced with
79ec651a286c71a3d4c72be33a1f80e76a560031.  As explained here:

        [bug#65352] Fix time-machine and network
        Simon Tournier <zimon.toutoune@gmail.com>
        Mon, 04 Sep 2023 19:37:08 +0200
        id:87wmx5on5n.fsf@gmail.com
        https://issues.guix.gnu.org//65352
        https://issues.guix.gnu.org/msgid/87wmx5on5n.fsf@gmail.com
        https://yhetil.org/guix/87wmx5on5n.fsf@gmail.com

Because of this code, you are breaking the contract and passing '() as
REF.  Hence my patch.

Cheers,
simon
diff mbox series

Patch

From e1fdd6748ebb1088fb805d77cfb176758bab5618 Mon Sep 17 00:00:00 2001
Message-Id: <e1fdd6748ebb1088fb805d77cfb176758bab5618.1693826861.git.zimon.toutoune@gmail.com>
From: Simon Tournier <zimon.toutoune@gmail.com>
Date: Mon, 4 Sep 2023 13:23:59 +0200
Subject: [PATCH] guix: git: Add default case when resolving reference.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reported by Ludovic Courtès <ludo@gnu.org>.

* guix/git.scm (resolve-reference): Return #false when the reference is not
resolved.
---
 guix/git.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/guix/git.scm b/guix/git.scm
index ebe2600209d4..d4076d4a0a0c 100644
--- a/guix/git.scm
+++ b/guix/git.scm
@@ -282,7 +282,8 @@  (define (resolve-reference repository ref)
          (if (= OBJ-TAG (object-type obj))
              (object-lookup repository
                             (tag-target-id (tag-lookup repository oid)))
-             obj))))))
+             obj)))
+      (_ #f))))
 
 (define (switch-to-ref repository ref)
   "Switch to REPOSITORY's branch, commit or tag specified by REF.  Return the

base-commit: bedcdf0fb5ac035f696790827679406c7146396c
-- 
2.38.1