evolve: fix the broken behaviour on div resolution in relocation case
In content divergence resolution, I see that when "relocationreq" is
True which means both the cset are on different parent and relocation
is required. In this case when "divergent" is the one who is behind
the "other" cset in DAG, we swap them. At this point one thing we
missed is to update the evolvestate['divergent'].
Because of this in continue case we didn't get the right value
of obsmarkers creation.
In this patch I added the code to update the evolvestate when we swap
them.
Now as we know "divergent" and "other" can be swapped in some cases,
it is better to store the intial divergent separately in evolvestate
which is evolvestate['orig-divergent'] and later this value is used
to update the evolvestate['replacements'] which is the track of
revisions which has been resolved.
Changes in tests demonstrate the fixed behaviour.
.. Copyright 2011 Pierre-Yves David <pierre-yves.david@ens-lyon.org>
.. Logilab SA <contact@logilab.fr>
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Good practice for (early) users of evolve
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Avoid unstability
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The less unstability you have the less you need to resolve.
Evolve is not yet able to detect and solve every situation. And your mind is
not ready neither.
Branch as much as possible
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This is not MQ; you are not constrained to linear history.
Making a branch per independent branch will help you avoid unstability
and conflict.
Rewrite your changes only
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There is no descent conflict detection and handling right now.
Rewriting other people's changesets guarantees that you will get
conflicts. Communicate with your fellow developers before trying to
touch other people's work (which is a good practice in any case).
Using multiple branches will help you to achieve this goal.
Prefer pushing unstability to touching other people changesets
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If you have children changesets from other people that you don't really care
about, prefer not altering them to risking a conflict by stabilizing them.
Do not get too confident
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This is an experimental extension and a complex concept. This is beautiful,
powerful and robust on paper, but the tool and your mind may not be prepared for
all situations yet.