Re: Is there a limint on the number of branches in CVS?

[Mark E. Hamilton]

Todd Denniston wrote:

> > > > Out of curiosity, has anyone tested what happens if the revision 
> > > > numbers
> > > > roll over?
> > >
> > >
> > >
> > > I suspect all hell breaks loose.  :-)
> >
> >
> >
> > I suspect you're right.
>
> Would either of you have a better plan for testing the roll over than to 
> do something like the following script?
> With _an_ unmodified CVS I believe it would take ~18.5 hours to get to 
> 65534, to get to 2147483647 it would only take ~68 years by just 
> checking in new revs. So we may have a little time left to fix the 
> problem. :)
>
> BTW, looks to me like we still did not have a problem at 4294967294 on a 
> Linux system running on a Intel(R) Xeon(TM) CPU 1.50GHz.

Well, I just created a new repos, added three test files, then manually 
modified the ,v file, changing all instances of 1.1 to 1.65535 in one 
file, 1.2147483648 in the second file, and 1.4294967295 in the third. 
After updating in my working directory I changed and committed all of 
them twice. Looks to me like it didn't have any real heartburn.

(Did it in about 10 minutes, too, without a single (new) gray hair! ;) )

sahp6613% cvs commit -m 'Test 1'
cvs commit: Examining .
Checking in test1.dat;
/var/tmp/mhamilt/repos/test/test1.dat,v  <--  test1.dat
new revision: 1.65535; previous revision: 1.65534
done
Checking in test2.dat;
/var/tmp/mhamilt/repos/test/test2.dat,v  <--  test2.dat
new revision: 1.2147483648; previous revision: 1.2147483647
done

sahp6613% cat test1.dat > test2.dat ; cat test2.dat > test1.dat


sahp6613% cvs commit -m 'Test 2'
cvs commit: Examining .
Checking in test1.dat;
/var/tmp/mhamilt/repos/test/test1.dat,v  <--  test1.dat
new revision: 1.65536; previous revision: 1.65535
done
Checking in test2.dat;
/var/tmp/mhamilt/repos/test/test2.dat,v  <--  test2.dat
new revision: 1.2147483649; previous revision: 1.2147483648
done

sahp6613% cat test1.dat > test2.dat ; cat test2.dat > test1.dat

sahp6613% cvs commit -m 'Test 3'
cvs commit: Examining .
Checking in test1.dat;
/var/tmp/mhamilt/repos/test/test1.dat,v  <--  test1.dat
new revision: 1.65537; previous revision: 1.65536
done
Checking in test2.dat;
/var/tmp/mhamilt/repos/test/test2.dat,v  <--  test2.dat
new revision: 1.2147483650; previous revision: 1.2147483649
done

sahp6613% cat test1.dat >> test3.dat
sahp6613% cvs commit -m 'Test 4'
cvs commit: Examining .
Checking in test3.dat;
/var/tmp/mhamilt/repos/test/test3.dat,v  <--  test3.dat
new revision: 1.4294967295; previous revision: 1.4294967294
done

sahp6613% cat test1.dat >> test3.dat

sahp6613% cvs commit -m 'Test 5'
cvs commit: Examining .
Checking in test3.dat;
/var/tmp/mhamilt/repos/test/test3.dat,v  <--  test3.dat
new revision: 1.4294967296; previous revision: 1.4294967295
done



--
----------------
Mark E. Hamilton
Orion International Technologies, Inc.
Sandia National Laboratory, NM.
505-844-7666