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Re: [PATCH/RFC 0/2] Teach receive-pack not to run update hook for corrupt/non existent ref

From
Sitaram Chamarty <sitaramc@gmail.com>
Date
Sep 26, 2011, 23:44 UTC
Message-ID
<CAMK1S_gR6U=OxzGsjTD8LbvZFS125=p1fQ8Af7aRD2XSsRur_Q@mail.gmail.com>
In-Reply-To
<7vwrcuzy44.fsf@alter.siamese.dyndns.org>
On Tue, Sep 27, 2011 at 4:53 AM, Junio C Hamano <gitster@pobox.com> wrote:
Show 29 quoted lines
> Sitaram Chamarty <sitaramc@gmail.com> writes:
>
>> From a philosophical point of view, update and pre-receive *check*
>> things to make sure everything is OK.  IMO they should be allowed to
>> run even if the ref being deleted doesn't exist -- that could well be
>> an error condition that the guy who owns the repo wants to trap and
>> alert himself to in some special way.  I would *not* like them
>> disabled.
>
> I think this is a sane thing to do.
>
>> Post-{update,receive} are for *after* a successful push.  My
>> suggestion would be to make sure the inputs supplied to those hooks
>> (via STDIN for post-receive, and as arguments in case of post-update)
>> reflect this -- only successfully updated refs are sent in as args.
>
> Perhaps sane.
>
>> This might mean that in the case of 'git push origin
>> :refs/heads/non-existent-ref' the post-receive hook would run but
>> STDIN would be empty, and post-update would run but have no arguments.
>
> Hmm?
>
> In that case (if "non-existent-ref" was indeed non-existent, and not just
> pointing at a dangling commit), I would say the post anything hook should
> not be called for that ref.  These hooks of course need to run if there
> are _other_ refs that were updated, though, to handle these _other_ refs,
> but I do not think they should be told about the no-op.

Question is what happens if none of them existed. It's a difference between not calling the hook at all, versus calling it with no arguments/empty stdin (as the case may be) -- which would you do? I say the hook *should* always run, and the code inside the hook should take care of the fact that no arguments/no input means nothing actually happened.

-- 
Sitaram
Previous: Junio C HamanoNext: Junio C Hamano
Message 12 of 18 in “Teach receive-pack not to run update hook for corrupt/non existent ref”
  1. 0/2 Teach receive-pack not to run update hook for corrupt/non existent refPang Yan Han, Sep 25, 2011
  2. 1/2 is_url: Remove redundant assignmentPang Yan Han, Sep 25, 2011
  3. Tay Ray ChuanSep 25, 2011
  4. Junio C HamanoSep 26, 2011
  5. Jeff KingSep 26, 2011
  6. 2/2 receive-pack: Don't run update hook for corrupt or nonexistent refPang Yan Han, Sep 25, 2011
  7. 2/2 run post-receive and post-update hooks with empty stdin/no args for invalid ref deletionPang Yan Han, Sep 25, 2011
  8. Sitaram ChamartySep 25, 2011
  9. Pang Yan HanSep 25, 2011
  10. Sitaram ChamartySep 25, 2011
  11. Junio C HamanoSep 26, 2011
  12. Sitaram ChamartySep 26, 2011
  13. Junio C HamanoSep 26, 2011
  14. Junio C HamanoSep 27, 2011
  15. Pang Yan HanSep 27, 2011
  16. Junio C HamanoSep 27, 2011
  17. Pang Yan HanSep 27, 2011
  18. Sitaram ChamartySep 27, 2011

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