* Re: Guile-Git & delayed ‘dynamic-link’ calls
[not found] ` <87blw4b7fj.fsf@gnu.org>
@ 2019-11-24 11:52 ` Mathieu Othacehe
2019-11-25 16:48 ` Mathieu Othacehe
0 siblings, 1 reply; 3+ messages in thread
From: Mathieu Othacehe @ 2019-11-24 11:52 UTC (permalink / raw)
To: Ludovic Courtès; +Cc: Guix Devel
Hey,
I noticed a regression with the patch da54721b1bd221. When using
set-fetch-auth-with-ssh-agent! function, I have the following error:
--8<---------------cut here---------------start------------->8---
ERROR: Wrong type (expecting exact integer): 0
--8<---------------cut here---------------end--------------->8---
Applying the following patch:
--8<---------------cut here---------------start------------->8---
diff --git a/git/fetch.scm b/git/fetch.scm
index da18bbe..a213859 100644
--- a/git/fetch.scm
+++ b/git/fetch.scm
@@ -52,8 +52,8 @@
fetch-options
(cred-acquire-cb
(lambda (cred url username allowed payload)
- (cred-ssh-key-from-agent cred
- (pointer->string username))))))
+ (+ 0 (cred-ssh-key-from-agent cred
+ (pointer->string username)))))))
--8<---------------cut here---------------end--------------->8---
the problem is fixed. It seems that the return of
cred-ssh-key-from-agent is not detected as an integer (because of
"catch" function used in libgit2->procedure?). Doing something like:
--8<---------------cut here---------------start------------->8---
diff --git a/git/bindings.scm b/git/bindings.scm
index 88be550..8e15715 100644
--- a/git/bindings.scm
+++ b/git/bindings.scm
@@ -56,16 +56,18 @@
(list ENOSYS))))))
(define (libgit2->procedure return name params)
+ (define res 0)
(catch #t
(lambda ()
(let ((ptr (dynamic-func name (dynamic-link %libgit2))))
;; The #:return-errno? facility was introduced in Guile 2.0.12.
- (pointer->procedure return ptr params
- #:return-errno? #t)))
+ (set! res (pointer->procedure return ptr params
+ #:return-errno? #t))))
(lambda args
(lambda _
(throw 'system-error name "~A" (list (strerror ENOSYS))
- (list ENOSYS))))))
+ (list ENOSYS)))))
+ res)
--8<---------------cut here---------------end--------------->8---
also fixes the problem.
Does anywone understands what's going on here?
Thanks,
Mathieu
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: Guile-Git & delayed ‘dynamic-link’ calls
2019-11-24 11:52 ` Guile-Git & delayed ‘dynamic-link’ calls Mathieu Othacehe
@ 2019-11-25 16:48 ` Mathieu Othacehe
2019-11-26 10:29 ` Ludovic Courtès
0 siblings, 1 reply; 3+ messages in thread
From: Mathieu Othacehe @ 2019-11-25 16:48 UTC (permalink / raw)
To: Ludovic Courtès; +Cc: Guix Devel
> Does anywone understands what's going on here?
Found it! It's the #:return-errno passed to pointer->procedure that
makes every call to libgit2->procedure return two values.
The second one (the errno) was silently ignored. I'll propose a patch
soon.
Mathieu
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Guile-Git & delayed ‘dynamic-link’ calls
2019-11-25 16:48 ` Mathieu Othacehe
@ 2019-11-26 10:29 ` Ludovic Courtès
0 siblings, 0 replies; 3+ messages in thread
From: Ludovic Courtès @ 2019-11-26 10:29 UTC (permalink / raw)
To: Mathieu Othacehe; +Cc: Guix Devel
Mathieu Othacehe <m.othacehe@gmail.com> skribis:
>> Does anywone understands what's going on here?
>
> Found it! It's the #:return-errno passed to pointer->procedure that
> makes every call to libgit2->procedure return two values.
>
> The second one (the errno) was silently ignored. I'll propose a patch
> soon.
Oh, great that you found it!
Ludo’.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-11-24 11:52 ` Guile-Git & delayed ‘dynamic-link’ calls Mathieu Othacehe
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2019-11-26 10:29 ` Ludovic Courtès
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