Re: CVS Transaction

[Pierre Asselin]

Mateusz [PEYN] Adamus <address@hidden> wrote:

> Is there in CVS something like DB transactions?

> Fore example:
> 1. login to cvs
> 2. start transaction
> 3. create branch
> 4. do something on this branch
> 5. if 4 = OK then commit transaction (branch stays)
>     else rollback tran (delete branch)

I don't see how you could do implement that without taking a write
lock on the entire module ... which would defeat the "C" in "CVS".

When I need to be careful about races, I generally find it sufficient
to plant temporary tags from a working sandbox ("cvs tag", not "cvs
rtag").  The tag operation is not atomic, but it produces well-defined
results because the revision numbers for the tags are taken from
the sandbox.


-- 
pa at panix dot com