obsolete: explicitly track folds inside the markers
We now record information to be able to recognize "fold" event from
obsolescence markers. To do so, we track the following pieces of information:
a) a fold ID. Unique to that fold (per successor),
b) the number of predecessors,
c) the index of the predecessor in that fold.
We will now be able to create an algorithm able to find "predecessorssets".
We now store this data in the generic "metadata" field of the markers.
Updating the format to have a more compact storage for this would be useful.
This way of tracking a fold through multiple markers could be applied to split
too. This would have two advantages:
1) We get a simpler format, since number of successors is limited to [0-1].
2) We can better deal with situations where only some of the split successors
are pushed to a remote repository.
We should look into the relevance of such a change before updating the on-disk
format.
note: unlike splits, folds do not have to deal with cases where only some of
the markers have been synchronized. As they all share the same successor
changesets, they are all relevant to the same nodes.
This test file test the various messages when accessing obsolete
revisions.
Global setup
============
$ . $TESTDIR/testlib/obsmarker-common.sh
$ cat >> $HGRCPATH <<EOF
> [ui]
> interactive = true
> [phases]
> publish=False
> [experimental]
> evolution.createmarkers = yes
> evolution.effect-flags = yes
> EOF
Test output on amended commit
=============================
Test setup
----------
$ hg init $TESTTMP/local-amend
$ cd $TESTTMP/local-amend
$ mkcommit ROOT
$ mkcommit A0
$ echo 42 >> A0
$ hg commit --amend -m "A1
>
> Better commit message"
$ hg log --hidden -G
@ changeset: 2:4ae3a4151de9
| tag: tip
| parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A1
|
| x changeset: 1:471f378eab4c
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: rewritten using amend as 2:4ae3a4151de9
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
Actual test
-----------
$ hg update 471f378eab4c
abort: hidden revision '471f378eab4c' was rewritten as: 4ae3a4151de9!
(use --hidden to access hidden revisions)
[255]
$ hg update --hidden "desc(A0)"
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 471f378eab4c
(hidden revision '471f378eab4c' was rewritten as: 4ae3a4151de9)
Test output with pruned commit
==============================
Test setup
----------
$ hg init $TESTTMP/local-prune
$ cd $TESTTMP/local-prune
$ mkcommit ROOT
$ mkcommit A0 # 0
$ mkcommit B0 # 1
$ hg log --hidden -G
@ changeset: 2:0dec01379d3b
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: B0
|
o changeset: 1:471f378eab4c
| 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 debugobsolete --record-parents `getid 'desc(B0)'`
obsoleted 1 changesets
$ hg log --hidden -G
@ changeset: 2:0dec01379d3b
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: pruned
| summary: B0
|
o changeset: 1:471f378eab4c
| 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
Actual test
-----------
$ hg up 1
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg up 0dec01379d3b
abort: hidden revision '0dec01379d3b' is pruned!
(use --hidden to access hidden revisions)
[255]
$ hg up --hidden -r 'desc(B0)'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 0dec01379d3b
(hidden revision '0dec01379d3b' is pruned)
Test output with splitted commit
================================
Test setup
----------
$ hg init $TESTTMP/local-split
$ cd $TESTTMP/local-split
$ mkcommit ROOT
$ echo 42 >> a
$ echo 43 >> b
$ hg commit -A -m "A0"
adding a
adding b
$ hg log --hidden -G
@ changeset: 1:471597cad322
| 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
# Simulate a split
$ hg up 0
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo 42 >> a
$ hg commit -A -m "A0"
adding a
created new head
$ echo 43 >> b
$ hg commit -A -m "A0"
adding b
$ hg debugobsolete `getid '1'` `getid '2'` `getid '3'`
obsoleted 1 changesets
$ hg log --hidden -G
@ changeset: 3:f257fde29c7a
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A0
|
o changeset: 2:337fec4d2edc
| parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A0
|
| x changeset: 1:471597cad322
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: split as 2:337fec4d2edc, 3:f257fde29c7a
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
Actual test
-----------
$ hg update 471597cad322
abort: hidden revision '471597cad322' was split as: 337fec4d2edc, f257fde29c7a!
(use --hidden to access hidden revisions)
[255]
$ hg update --hidden 'min(desc(A0))'
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 471597cad322
(hidden revision '471597cad322' was split as: 337fec4d2edc, f257fde29c7a)
Test output with lots of splitted commit
========================================
Test setup
----------
$ hg init $TESTTMP/local-lots-split
$ cd $TESTTMP/local-lots-split
$ mkcommit ROOT
$ echo 42 >> a
$ echo 43 >> b
$ echo 44 >> c
$ echo 45 >> d
$ hg commit -A -m "A0"
adding a
adding b
adding c
adding d
$ hg log --hidden -G
@ changeset: 1:de7290d8b885
| 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
# Simulate a split
$ hg up 0
0 files updated, 0 files merged, 4 files removed, 0 files unresolved
$ echo 42 >> a
$ hg commit -A -m "A0"
adding a
created new head
$ echo 43 >> b
$ hg commit -A -m "A0"
adding b
$ echo 44 >> c
$ hg commit -A -m "A0"
adding c
$ echo 45 >> d
$ hg commit -A -m "A0"
adding d
$ hg debugobsolete `getid '1'` `getid '2'` `getid '3'` `getid '4'` `getid '5'`
obsoleted 1 changesets
$ hg log --hidden -G
@ changeset: 5:c7f044602e9b
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A0
|
o changeset: 4:1ae8bc733a14
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A0
|
o changeset: 3:f257fde29c7a
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A0
|
o changeset: 2:337fec4d2edc
| parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A0
|
| x changeset: 1:de7290d8b885
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: split as 2:337fec4d2edc, 3:f257fde29c7a, 4:1ae8bc733a14, 5:c7f044602e9b
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
Actual test
-----------
$ hg update de7290d8b885
abort: hidden revision 'de7290d8b885' was split as: 337fec4d2edc, f257fde29c7a and 2 more!
(use --hidden to access hidden revisions)
[255]
$ hg update --hidden 'min(desc(A0))'
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset de7290d8b885
(hidden revision 'de7290d8b885' was split as: 337fec4d2edc, f257fde29c7a and 2 more)
Test output with folded commit
==============================
Test setup
----------
$ hg init $TESTTMP/local-fold
$ cd $TESTTMP/local-fold
$ mkcommit ROOT
$ mkcommit A0
$ mkcommit B0
$ hg log --hidden -G
@ changeset: 2:0dec01379d3b
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: B0
|
o changeset: 1:471f378eab4c
| 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
# Simulate a fold
$ hg up 0
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo "A0" > A0
$ echo "B0" > B0
$ hg add A0 B0
$ hg commit -m "C0"
created new head
$ hg debugobsolete `getid 'desc(A0)'` `getid 'desc(C0)'`
obsoleted 1 changesets
1 new orphan changesets
$ hg debugobsolete `getid 'desc(B0)'` `getid 'desc(C0)'`
obsoleted 1 changesets
$ hg log --hidden -G
@ changeset: 3:eb5a0daa2192
| tag: tip
| parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: C0
|
| x changeset: 2:0dec01379d3b
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | obsolete: rewritten as 3:eb5a0daa2192
| | summary: B0
| |
| x changeset: 1:471f378eab4c
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: rewritten as 3:eb5a0daa2192
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
Actual test
-----------
$ hg update 471f378eab4c
abort: hidden revision '471f378eab4c' was rewritten as: eb5a0daa2192!
(use --hidden to access hidden revisions)
[255]
$ hg update --hidden 'desc(A0)'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to hidden changeset 471f378eab4c
(hidden revision '471f378eab4c' was rewritten as: eb5a0daa2192)
$ hg update 0dec01379d3b
abort: hidden revision '0dec01379d3b' was rewritten as: eb5a0daa2192!
(use --hidden to access hidden revisions)
[255]
$ hg update --hidden 'desc(B0)'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 0dec01379d3b
(hidden revision '0dec01379d3b' was rewritten as: eb5a0daa2192)
Test output with divergence
===========================
Test setup
----------
$ hg init $TESTTMP/local-divergence
$ cd $TESTTMP/local-divergence
$ mkcommit ROOT
$ mkcommit A0
$ hg commit --amend -m "A1"
$ hg log --hidden -G
@ changeset: 2:fdf9bde5129a
| tag: tip
| parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: A1
|
| x changeset: 1:471f378eab4c
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: rewritten using amend as 2:fdf9bde5129a
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
$ hg update --hidden 'desc(A0)'
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 471f378eab4c
(hidden revision '471f378eab4c' was rewritten as: fdf9bde5129a)
$ hg commit --amend -m "A2"
2 new content-divergent changesets
$ hg log --hidden -G
@ changeset: 3:65b757b745b9
| tag: tip
| parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| instability: content-divergent
| summary: A2
|
| * changeset: 2:fdf9bde5129a
|/ parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| instability: content-divergent
| summary: A1
|
| x changeset: 1:471f378eab4c
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: rewritten using amend as 2:fdf9bde5129a
| obsolete: rewritten using amend as 3:65b757b745b9
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
Actual test
-----------
$ hg update 471f378eab4c
abort: hidden revision '471f378eab4c' has diverged!
(use --hidden to access hidden revisions)
[255]
$ hg update --hidden 'desc(A0)'
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 471f378eab4c
(hidden revision '471f378eab4c' has diverged)
Test output with amended + folded commit
========================================
Test setup
----------
$ hg init $TESTTMP/local-amend-fold
$ cd $TESTTMP/local-amend-fold
$ mkcommit ROOT
$ mkcommit A0
$ mkcommit B0
$ hg commit --amend -m "B1"
$ hg log --hidden -G
@ changeset: 3:b7ea6d14e664
| tag: tip
| parent: 1:471f378eab4c
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: B1
|
| x changeset: 2:0dec01379d3b
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: rewritten using amend as 3:b7ea6d14e664
| summary: B0
|
o changeset: 1:471f378eab4c
| 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
# Simulate a fold
$ hg up 0
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo "A0" > A0
$ echo "B0" > B0
$ hg add A0 B0
$ hg commit -m "C0"
created new head
$ hg debugobsolete `getid 'desc(A0)'` `getid 'desc(C0)'`
obsoleted 1 changesets
1 new orphan changesets
$ hg debugobsolete `getid 'desc(B1)'` `getid 'desc(C0)'`
obsoleted 1 changesets
$ hg log --hidden -G
@ changeset: 4:eb5a0daa2192
| tag: tip
| parent: 0:ea207398892e
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: C0
|
| x changeset: 3:b7ea6d14e664
| | parent: 1:471f378eab4c
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | obsolete: rewritten as 4:eb5a0daa2192
| | summary: B1
| |
| | x changeset: 2:0dec01379d3b
| |/ user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | obsolete: rewritten using amend as 3:b7ea6d14e664
| | summary: B0
| |
| x changeset: 1:471f378eab4c
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: rewritten as 4:eb5a0daa2192
| summary: A0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
Actual test
-----------
$ hg update 471f378eab4c
abort: hidden revision '471f378eab4c' was rewritten as: eb5a0daa2192!
(use --hidden to access hidden revisions)
[255]
$ hg update --hidden 'desc(A0)'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to hidden changeset 471f378eab4c
(hidden revision '471f378eab4c' was rewritten as: eb5a0daa2192)
$ hg update --hidden 0dec01379d3b
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updated to hidden changeset 0dec01379d3b
(hidden revision '0dec01379d3b' was rewritten as: eb5a0daa2192)
$ hg update 0dec01379d3b
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg update --hidden 'desc(B0)'
0 files updated, 0 files merged, 0 files removed, 0 files unresolved