topic: use ui.configoverride() instead of ui.backupconfig()
ui.configoverride() was added in hg 4.1. util.nullcontextmanager() was
added in hg 4.4.
Content divergence and trying to relocate a node on top of itself (issue5958)
https://bz.mercurial-scm.org/show_bug.cgi?id=5958
$ . $TESTDIR/testlib/common.sh
$ cat << EOF >> $HGRCPATH
> [extensions]
> rebase =
> evolve =
> EOF
$ hg init issue5958
$ cd issue5958
$ echo hi > r0
$ hg ci -qAm 'add r0'
$ echo hi > foo.txt
$ hg ci -qAm 'add foo.txt'
$ hg metaedit -r . -d '0 2'
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
(Make changes in unrelated files so that we don't have any merge conflicts
during the rebase, but the two touched revisions aren't identical)
date: updated on both side to the same value
$ echo hi > bar.txt
$ hg add -q bar.txt
$ hg amend -q
$ hg metaedit -r 1 -d '0 1' --hidden
2 new content-divergent changesets
$ hg log -r tip
changeset: 4:c17bf400a278
tag: tip
parent: 0:a24ed8ad918c
user: test
date: Wed Dec 31 23:59:59 1969 -0000
instability: content-divergent
summary: add foo.txt
$ echo hi > baz.txt
$ hg add -q baz.txt
$ hg amend -q
$ hg rebase -qr tip -d 4
$ hg log -G
@ changeset: 6:08bc7ba82799
| tag: tip
| parent: 4:c17bf400a278
| user: test
| date: Wed Dec 31 23:59:58 1969 -0000
| instability: content-divergent
| summary: add foo.txt
|
* changeset: 4:c17bf400a278
| parent: 0:a24ed8ad918c
| user: test
| date: Wed Dec 31 23:59:59 1969 -0000
| instability: content-divergent
| summary: add foo.txt
|
o changeset: 0:a24ed8ad918c
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add r0
$ hg obslog -a -r .
@ 08bc7ba82799 (6) add foo.txt
|
| * c17bf400a278 (4) add foo.txt
| |
x | 1d1fc409af98 (5) add foo.txt
| | rewritten(parent, content) as 08bc7ba82799 using rebase by test (Thu Jan 01 00:00:00 1970 +0000)
| |
x | a25dd7af6cf6 (3) add foo.txt
| | rewritten(content) as 1d1fc409af98 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
| |
x | 0065551bd38f (2) add foo.txt
|/ rewritten(content) as a25dd7af6cf6 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
|
x cc71ffbc7c00 (1) add foo.txt
rewritten(date) as 0065551bd38f using metaedit by test (Thu Jan 01 00:00:00 1970 +0000)
rewritten(date) as c17bf400a278 using metaedit by test (Thu Jan 01 00:00:00 1970 +0000)
$ hg evolve --list --rev .
08bc7ba82799: add foo.txt
content-divergent: c17bf400a278 (draft) (precursor cc71ffbc7c00)
$ hg log --hidden -r cc71ffbc7c00 -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
1 cc71ffbc7c00 1970-01-01 00:00 +0000: date-changed using metaedit as 4:c17bf400a278; date-changed using metaedit as 2:0065551bd38f
$ hg log -r 'desc("add foo.txt")' -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
4 c17bf400a278 1969-12-31 23:59 -0000:
6 08bc7ba82799 1969-12-31 23:59 -0000:
$ hg evolve --content-divergent
merge:[6] add foo.txt
with: [4] add foo.txt
base: [1] add foo.txt
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 new orphan changesets
working directory is now at 459c64f7eaad
$ hg log -r 'desc("add foo.txt")' -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
4 c17bf400a278 1969-12-31 23:59 -0000: rewritten using evolve as 7:459c64f7eaad
7 459c64f7eaad 1969-12-31 23:59 -0000:
date: updated one one side to an older value
$ hg evolve -r .
move:[7] add foo.txt
atop:[0] add r0
working directory is now at 545776b4e79f
$ hg update --hidden --rev 'predecessors(.)'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 459c64f7eaad
(hidden revision '459c64f7eaad' was rewritten as: 545776b4e79f)
working directory parent is obsolete! (459c64f7eaad)
(use 'hg evolve' to update to its successor: 545776b4e79f)
$ hg amend --date "0 3"
1 new orphan changesets
2 new content-divergent changesets
$ hg rebase -r . -d 0
rebasing 9:c117f15338e6 "add foo.txt" (tip)
$ hg log -G
@ changeset: 10:7a09c7a39546
| tag: tip
| parent: 0:a24ed8ad918c
| user: test
| date: Wed Dec 31 23:59:57 1969 -0000
| instability: content-divergent
| summary: add foo.txt
|
| * changeset: 8:545776b4e79f
|/ parent: 0:a24ed8ad918c
| user: test
| date: Wed Dec 31 23:59:58 1969 -0000
| instability: content-divergent
| summary: add foo.txt
|
o changeset: 0:a24ed8ad918c
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add r0
$ hg evolve --list -r .
7a09c7a39546: add foo.txt
content-divergent: 545776b4e79f (draft) (precursor 459c64f7eaad)
$ hg log -r 459c64f7eaad+7a09c7a39546+545776b4e79f --hidden -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
7 459c64f7eaad 1969-12-31 23:59 -0000: date-changed using amend as 9:c117f15338e6; rebased using evolve as 8:545776b4e79f
10 7a09c7a39546 1969-12-31 23:59 -0000:
8 545776b4e79f 1969-12-31 23:59 -0000:
$ hg evolve --content-divergent
merge:[8] add foo.txt
with: [10] add foo.txt
base: [7] add foo.txt
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
working directory is now at 39c4200c0d94
$ hg log -r . --hidden -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
11 39c4200c0d94 1969-12-31 23:59 -0000:
date: updated one side to an newer value
$ hg update --hidden --rev 'predecessors(.)'
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 7a09c7a39546
(hidden revision '7a09c7a39546' was rewritten as: 39c4200c0d94)
working directory parent is obsolete! (7a09c7a39546)
(use 'hg evolve' to update to its successor: 39c4200c0d94)
$ hg amend --date "120 0"
2 new content-divergent changesets
$ hg log -G
@ changeset: 12:da3be3d72fe2
| tag: tip
| parent: 0:a24ed8ad918c
| user: test
| date: Thu Jan 01 00:02:00 1970 +0000
| instability: content-divergent
| summary: add foo.txt
|
| * changeset: 11:39c4200c0d94
|/ parent: 0:a24ed8ad918c
| user: test
| date: Wed Dec 31 23:59:57 1969 -0000
| instability: content-divergent
| summary: add foo.txt
|
o changeset: 0:a24ed8ad918c
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add r0
$ hg evolve --list -r .
da3be3d72fe2: add foo.txt
content-divergent: 39c4200c0d94 (draft) (precursor 7a09c7a39546)
$ hg up 39c4200c0d94
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -r 7a09c7a39546+39c4200c0d94+da3be3d72fe2 --hidden -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
10 7a09c7a39546 1969-12-31 23:59 -0000: date-changed using amend as 12:da3be3d72fe2; rewritten using evolve as 11:39c4200c0d94
11 39c4200c0d94 1969-12-31 23:59 -0000:
12 da3be3d72fe2 1970-01-01 00:02 +0000:
$ hg evolve --content-divergent
merge:[11] add foo.txt
with: [12] add foo.txt
base: [10] add foo.txt
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
working directory is now at 06cde6010a51
$ hg log -r . --hidden -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
13 06cde6010a51 1970-01-01 00:02 +0000:
date: updated each side to a different value, newer should win
$ hg amend --date "235 0"
$ hg update --hidden --rev 'predecessors(.)'
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 06cde6010a51
(hidden revision '06cde6010a51' was rewritten as: a7412ff9bfb3)
working directory parent is obsolete! (06cde6010a51)
(use 'hg evolve' to update to its successor: a7412ff9bfb3)
$ hg amend --date "784 0"
2 new content-divergent changesets
$ hg log -G
@ changeset: 15:e3077936ec52
| tag: tip
| parent: 0:a24ed8ad918c
| user: test
| date: Thu Jan 01 00:13:04 1970 +0000
| instability: content-divergent
| summary: add foo.txt
|
| * changeset: 14:a7412ff9bfb3
|/ parent: 0:a24ed8ad918c
| user: test
| date: Thu Jan 01 00:03:55 1970 +0000
| instability: content-divergent
| summary: add foo.txt
|
o changeset: 0:a24ed8ad918c
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add r0
$ hg evolve --list -r .
e3077936ec52: add foo.txt
content-divergent: a7412ff9bfb3 (draft) (precursor 06cde6010a51)
$ hg log -r 39c4200c0d94+a7412ff9bfb3+e3077936ec52 --hidden -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
11 39c4200c0d94 1969-12-31 23:59 -0000: date-changed using evolve as 13:06cde6010a51
14 a7412ff9bfb3 1970-01-01 00:03 +0000:
15 e3077936ec52 1970-01-01 00:13 +0000:
$ hg evolve --content-divergent
merge:[14] add foo.txt
with: [15] add foo.txt
base: [13] add foo.txt
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
working directory is now at 1a39f3901288
$ hg log -r . --hidden -T '{rev} {node|short} {date|isodate}: {join(obsfate, "; ")}\n'
16 1a39f3901288 1970-01-01 00:13 +0000: