evolution: report new unstable changesets
This adds a transaction summary callback that reports the number of
new orphan, content-divergent and phase-divergent changesets.
The code for reporting it is based on the code from the evolve
extension, but simplified a bit. It simply counts the numbers for each
kind of instability before and after the transaction. That's obviously
not very efficient, but it's easy to reason about, so I'm doing this
as a first step that can make us quite confident about the test case
changes. We can optimize it later and make sure that the tests are not
affected. The code has been used in the evolve extension for a long
time and has apparently been sufficiently fast, so it doesn't seem
like a pressing issue.
Unlike the evolve extension's version of this report, this version
applies to all commands (or all transactions run as part of any
command, to be exact).
Differential Revision: https://phab.mercurial-scm.org/D1867
====================================
Testing head checking code: Case D-3
====================================
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 D: remote head is "obs-affected" locally, but result is not part of the push
TestCase 3: multi-changeset branch, split on multiple new others, only one of them is pushed
.. old-state:
..
.. * 2 changesets branch
..
.. new-state:
..
.. * 2 new branches, each superseding one changeset in the old one.
..
.. expected-result:
..
.. * pushing only one of the resulting branch (either of them)
.. * push denied
..
.. graph-summary:
..
.. B'◔⇢ø B
.. | |
.. A | ø⇠◔ A'
.. | |/
.. \|
.. ●
$ . $TESTDIR/testlib/push-checkheads-util.sh
Test setup
----------
$ mkdir D3
$ cd D3
$ setuprepos
creating basic server and client repo
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd server
$ mkcommit B0
$ hg up 0
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ cd ../client
$ hg pull
pulling from $TESTTMP/D3/server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets d73caddc5533
(run 'hg update' to get a working copy)
$ hg up 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ mkcommit A1
created new head
$ hg up '0'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ mkcommit B1
created new head
$ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"`
obsoleted 1 changesets
1 new orphan changesets
$ hg debugobsolete `getid "desc(B0)" ` `getid "desc(B1)"`
obsoleted 1 changesets
$ hg log -G --hidden
@ 25c56d33e4c4 (draft): B1
|
| o f6082bc4ffef (draft): A1
|/
| x d73caddc5533 (draft): B0
| |
| x 8aaa48160adc (draft): A0
|/
o 1e4be0697311 (public): root
Actual testing
--------------
$ hg push --rev 'desc(A1)'
pushing to $TESTTMP/D3/server
searching for changes
abort: push creates new remote head f6082bc4ffef!
(merge or see 'hg help push' for details about pushing new heads)
[255]
$ hg push --rev 'desc(B1)'
pushing to $TESTTMP/D3/server
searching for changes
abort: push creates new remote head 25c56d33e4c4!
(merge or see 'hg help push' for details about pushing new heads)
[255]
Extra testing
-------------
In this case, even a bare push is creating more heads
$ hg push
pushing to $TESTTMP/D3/server
searching for changes
abort: push creates new remote head 25c56d33e4c4!
(merge or see 'hg help push' for details about pushing new heads)
[255]
$ cd ../..