Re: cg-update (cogito-0.13) bug: changed heads

2005-09-06 Thread Junio C Hamano
"H. Peter Anvin" <[EMAIL PROTECTED]> writes:

> H. Peter Anvin wrote:
>>>
> OK, now later in the day I could not reproduce this on another box. 
> Either the situation was different enough, or I did something else wrong.

One thing that comes to mind, which may or may not be relevant
to your situation, is which branch you were on when you ran
cg-update.  I cannot speak for Pasky and I do not use Cogito,
but the 'git fetch' and 'git pull' commands that come with core
GIT used to have a funny interaction of fetch attempting to
update the branch head ref if your working tree happened to be
on that branch, which was fixed some time ago.


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Re: cg-update (cogito-0.13) bug: changed heads

2005-09-06 Thread H. Peter Anvin

H. Peter Anvin wrote:


So, C surely has its head updated? Does cg-update "fail" silently, or
does it utter anything?


C has its head updated, yes.  cg-update says "Branches already fully 
merged."




OK, now later in the day I could not reproduce this on another box. 
Either the situation was different enough, or I did something else wrong.


-hpa
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Re: cg-update (cogito-0.13) bug: changed heads

2005-09-06 Thread H. Peter Anvin

Petr Baudis wrote:

Dear diary, on Tue, Sep 06, 2005 at 11:01:25PM CEST, I got a letter
where "H. Peter Anvin" <[EMAIL PROTECTED]> told me that...

I just found a bug in cogito-0.13, at least to the best of my 
understanding of the situation.


Simplified, the problem looks like this: two sides, A and B, pull from 
repository C.  The head of this pull we call 0.


Now commit 1 is added to A.  B pulls commit 1 from A, not though C. 
Later, A pushes commit 1 to C.


Next time B tries to pull from C, cg-update will not advance 
refs/heads/origin, even though C now has a new head.  Thus, B will think 
that C is in a different state than it actually is.



So, C surely has its head updated? Does cg-update "fail" silently, or
does it utter anything?



C has its head updated, yes.  cg-update says "Branches already fully 
merged."


-hpa
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Re: cg-update (cogito-0.13) bug: changed heads

2005-09-06 Thread Petr Baudis
Dear diary, on Tue, Sep 06, 2005 at 11:01:25PM CEST, I got a letter
where "H. Peter Anvin" <[EMAIL PROTECTED]> told me that...
> I just found a bug in cogito-0.13, at least to the best of my 
> understanding of the situation.
> 
> Simplified, the problem looks like this: two sides, A and B, pull from 
> repository C.  The head of this pull we call 0.
> 
> Now commit 1 is added to A.  B pulls commit 1 from A, not though C. 
> Later, A pushes commit 1 to C.
> 
> Next time B tries to pull from C, cg-update will not advance 
> refs/heads/origin, even though C now has a new head.  Thus, B will think 
> that C is in a different state than it actually is.

So, C surely has its head updated? Does cg-update "fail" silently, or
does it utter anything?

-- 
Petr "Pasky" Baudis
Stuff: http://pasky.or.cz/
If you want the holes in your knowledge showing up try teaching
someone.  -- Alan Cox
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