evolve: make sure divergence resolution doesn't undo changes (issue6203)
Before this patch, in content-divergence resolution logic if resolution
parent is not the parent of any of the two divergent changesets then
it could undo some changes introduced by previous revs (while resolving
stack of content-divergent changesets) as demonstrated by the test added in
previous patch.
To solve this, what this patch doing is: if divergent cset has obsolete
parent with a successor then first resolve the "orphan" instability of
divergent cset by relocating, then perform the content-divergence resolution.
After this change in logic, I found that it's kind of more correct as
reflected by the changes in tests/test-evolve-content-divergent-corner-cases.t
where it prevented creating conflicts while merging.
Changes in tests/test-evolve-content-divergent-stack.t demonstrate the fixed
behaviour.
Next patches will be covering the `evolve --continue` case for the relocation
of "divergent" cset.
This test file test the various messages when accessing obsolete
revisions.
Global setup
============
$ . $TESTDIR/testlib/obshistory_setup.sh
Test simple common cases
========================
Test setup
----------
$ hg init $TESTTMP/simple
$ cd $TESTTMP/simple
Actual test
-----------
$ hg obslog -ap null
@ 000000000000 (-1)
$ hg obslog 'wdir()'
abort: working directory revision cannot be specified
[255]
Test output with pushed and pulled obs markers
==============================================
Test setup
----------
$ hg init $TESTTMP/local-remote-markers-1
$ cd $TESTTMP/local-remote-markers-1
$ mkcommit ROOT
$ mkcommit A0
$ hg log --hidden -G
@ changeset: 1:471f378eab4c
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
$ hg clone $TESTTMP/local-remote-markers-1 $TESTTMP/local-remote-markers-2
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd $TESTTMP/local-remote-markers-2
$ hg log --hidden -G
@ changeset: 1:471f378eab4c
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
$ cd $TESTTMP/local-remote-markers-1
$ hg amend -m "A1"
$ hg amend -m "A2"
$ hg log --hidden -G
@ changeset: 3:7a230b46bf61
| tag: tip
| parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A2
|
| x changeset: 2:fdf9bde5129a
|/ parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: reworded using amend as 3:7a230b46bf61
| summary: A1
|
| x changeset: 1:471f378eab4c
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: reworded using amend as 2:fdf9bde5129a
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
Actual test
-----------
$ hg obslog 7a230b46bf61 --patch
@ 7a230b46bf61 (3) A2
|
x fdf9bde5129a (2) A1
| rewritten(description) as 7a230b46bf61 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
| diff -r fdf9bde5129a -r 7a230b46bf61 changeset-description
| --- a/changeset-description
| +++ b/changeset-description
| @@ -1,1 +1,1 @@
| -A1
| +A2
|
|
x 471f378eab4c (1) A0
rewritten(description) as fdf9bde5129a using amend by test (Thu Jan 01 00:00:00 1970 +0000)
diff -r 471f378eab4c -r fdf9bde5129a changeset-description
--- a/changeset-description
+++ b/changeset-description
@@ -1,1 +1,1 @@
-A0
+A1
$ cd $TESTTMP/local-remote-markers-2
$ hg pull
pulling from $TESTTMP/local-remote-markers-1
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 1 files (+1 heads)
2 new obsolescence markers
obsoleted 1 changesets
new changesets 7a230b46bf61 (1 drafts)
(run 'hg heads' to see heads, 'hg merge' to merge)
working directory parent is obsolete! (471f378eab4c)
(use 'hg evolve' to update to its successor: 7a230b46bf61)
Check that debugobshistory works with markers pointing to missing local
changectx
$ hg obslog 7a230b46bf61 --patch
o 7a230b46bf61 (2) A2
|
x fdf9bde5129a
| rewritten(description) as 7a230b46bf61 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
| (No patch available, context is not local)
|
@ 471f378eab4c (1) A0
rewritten(description) as fdf9bde5129a using amend by test (Thu Jan 01 00:00:00 1970 +0000)
(No patch available, successor is unknown locally)
$ hg obslog 7a230b46bf61 --patch -f
o 7a230b46bf61 (2) A2
|
@ 471f378eab4c (1) A0
reworded(description) as 7a230b46bf61 using amend by test (at Thu Jan 01 00:00:00 1970 +0000)
diff -r 471f378eab4c -r 7a230b46bf61 changeset-description
--- a/changeset-description
+++ b/changeset-description
@@ -1,1 +1,1 @@
-A0
+A2
$ hg obslog 7a230b46bf61 --color=debug --patch
o [evolve.node|7a230b46bf61] [evolve.rev|(2)] [evolve.short_description|A2]
|
x [evolve.node evolve.missing_change_ctx|fdf9bde5129a]
| [evolve.verb|rewritten](description) as [evolve.node|7a230b46bf61] using [evolve.operation|amend] by [evolve.user|test] [evolve.date|(Thu Jan 01 00:00:00 1970 +0000)]
| (No patch available, context is not local)
|
@ [evolve.node|471f378eab4c] [evolve.rev|(1)] [evolve.short_description|A0]
[evolve.verb|rewritten](description) as [evolve.node|fdf9bde5129a] using [evolve.operation|amend] by [evolve.user|test] [evolve.date|(Thu Jan 01 00:00:00 1970 +0000)]
(No patch available, successor is unknown locally)