next: make next command --evolve by default
Before this patch, if we need to evolve to update to the next child,
we were suggesting the user to use --evolve flag. This patch make some
changes to evolve by default in that conditions.
After making next command to evolve by default we have to consider
the following points:
1) If we don't need to evolve while updating to the next child:
a) And if wdir is dirty, we suggest to use --merge flag
b) if wdir is clean, we simply update to next child (if ambiguous,
prompt the user to select one)
2) If we need to evolve:
a) when wdir is dirty, we suggest the user to use `hg shelve` first,
to make wdir clean. As we don't support --merge while evovling.
b) when wdir is clean, we evolve the next cset.
Changes made in test-prev-next.t reflect the changed behaviour.
====================================
Testing head checking code: Case B-1
====================================
Mercurial checks for the introduction of new heads on push. Evolution comes
into play to detect if existing branches on the server are being replaced by
some of the new one we push.
This case is part of a series of tests checking this behavior.
Category B: simple case involving pruned changesets
TestCase 1: single pruned changeset
.. old-state:
..
.. * 1 changeset branch
..
.. new-state:
..
.. * old branch is pruned
.. * 1 new unrelated branch
..
.. expected-result:
..
.. * push allowed
..
.. graph-summary:
..
.. ◔ B
.. |
.. A ⊗ |
.. |/
.. ●
$ . $TESTDIR/testlib/push-checkheads-util.sh
Test setup
----------
$ mkdir B1
$ cd B1
$ setuprepos
creating basic server and client repo
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd client
$ hg up 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ mkcommit B0
created new head
$ hg debugobsolete --record-parents `getid "desc(A0)"`
obsoleted 1 changesets
$ hg log -G --hidden
@ 74ff5441d343 (draft): B0
|
| x 8aaa48160adc (draft): A0
|/
o 1e4be0697311 (public): root
Actual testing
--------------
$ hg push
pushing to $TESTTMP/B1/server (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
1 new obsolescence markers
obsoleted 1 changesets
$ cd ../..