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From: Robert Ramey (ramey_at_[hidden])
Date: 2008-08-21 18:19:22

Peter Dimov wrote:
> A is working on the release branch against B. A+dA is working on trunk
> against B+dB. But dA can't be merged into release since it depends on
> dB.

> This isn't a big deal in practice since the author of A will simply
> ask the author of B to merge first.

Ah Ha - now you've come upon the magic missing piece !!!

If tests in the trunk are done against the RELEASE rather than
the TRUNK then this situation won'e come up. The trunk test
procedure should be.

a) Each tester maintains a release ready tree.
b) library A gets modified on the trunk
c) library B gets modified on the trunk
d) each tester does the following:
    for each modified library
        switch the directories which contain that library to the trunk
        run tests
        switch directories back to release.

This would mean that no library is tested against code which
is not yet in the release so changes won't be coupled.

Robert Ramey

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