The effect of a conflict in Darcs is to cancel out all sides of the
conflict. This creates a lot of confusion and difficulty for users. It
means that conflicts can be effectively invisible.
We need a better way for users
1. to be notified that they have a conflict
2. to feel confident that they have successfully resolved the conflict
This is sort of a vague problem identification ticket, and may open up
to other tickets in the future.
Some ideas proposed:
1. darcs revert -a should do a mark-conflicts afterwards (so that you
revert to a conflicted state)
2. on push/pull/etc time, darcs should emit "WARNING: You have
unresolved conflicts in this repository."
I think to make progress on this ticket, we need two things.
First: we need to remind ourselves what exactly Darcs's current
behaviour is for notifying users that there is a conflict. So we need
somebody to read the code and/or just apply/pull some patches and write
up what happens. I seem to remember that pull/apply --mark-conflicts
just tells you that (a) a conflict happened and (b) in what files. Is
that all we do?
Second: we need somebody to start a discussion on darcs-users fleshing
out a UI for addressing this notification problem. I'm planning to
start one drawing all the conflict UI tickets together, but in case I
(see also related tickets issue833 and issue1911)