( )⚙ D10087 test-copies: add a test updating file content while merging a pure overwrite

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Differential D10087

test-copies: add a test updating file content while merging a pure overwrite
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Authored by marmoute on Mar 2 2021, 3:13 AM.

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rHG6b52cffd8d0a: test-copies: add a test updating file content while merging a pure overwrite
Summary

As the current test misbehavior show, this confuse various part of the code:

  • the committed file is different depending of the commit source,
  • the upgrade code compute the wrong information on this changeset.

This will be fixed in upcoming patches.

Diff Detail

Repository
rHG Mercurial
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

marmoute created this revision.Mar 2 2021, 3:13 AM
marmoute planned changes to this revision.Mar 2 2021, 3:15 AM

(this will need a rebase over D10084 which is more important)

baymax updated this revision to Diff 26022.Mar 2 2021, 11:59 AM

✅ refresh by Heptapod after a successful CI run (🐙 💚)

marmoute added a commit: rHG6b52cffd8d0a: test-copies: add a test updating file content while merging a pure overwrite.Mar 17 2021, 1:51 PM
This revision was not accepted when it landed; it landed in state Needs Review.
Closed by commit rHG6b52cffd8d0a: test-copies: add a test updating file content while merging a pure overwrite (authored by marmoute). · Explain Why
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathPackages
Mtests/test-copies-chain-merge.t (248 lines)

Diff 26491

tests/test-copies-chain-merge.t

|/ |/
o i-2: c -move-> d, s -move-> t o i-2: c -move-> d, s -move-> t
| |
o i-1: a -move-> c, p -move-> s o i-1: a -move-> c, p -move-> s
| |
o i-0 initial commit: a b h p q r o i-0 initial commit: a b h p q r
Subcase: merge overwrite common copy information, but with extra change during the merge
````````````````````````````````````````````````````````````````````````````````````````
Merge:
- one with change to an unrelated file (b)
- one overwriting a file (d) with a rename (from h to i to d)
- the merge update f content
$ case_desc="merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d)"
$ hg up 'desc("f-2")'
2 files updated, 0 files merged, 2 files removed, 0 files unresolved
#if no-changeset
$ hg debugindex d | ../no-linkrev
rev linkrev nodeid p1 p2
0 * d8252ab2e760 000000000000 000000000000
1 * b004912a8510 000000000000 000000000000
2 * 7b79e2fe0c89 000000000000 000000000000
3 * 17ec97e60577 d8252ab2e760 000000000000
4 * 06dabf50734c b004912a8510 17ec97e60577
5 * 19c0e3924691 17ec97e60577 b004912a8510
6 * 89c873a01d97 7b79e2fe0c89 17ec97e60577
7 * d55cb4e9ef57 000000000000 000000000000
#else
$ hg debugindex d | ../no-linkrev
rev linkrev nodeid p1 p2
0 * ae258f702dfe 000000000000 000000000000
1 * b004912a8510 000000000000 000000000000
2 * 5cce88bf349f ae258f702dfe 000000000000
3 * cc269dd788c8 b004912a8510 5cce88bf349f
4 * 51c91a115080 5cce88bf349f b004912a8510
#endif
$ hg up 'desc("b-1")'
3 files updated, 0 files merged, 0 files removed, 0 files unresolved (no-changeset !)
2 files updated, 0 files merged, 0 files removed, 0 files unresolved (changeset !)
$ hg merge 'desc("f-2")'
1 files updated, 0 files merged, 1 files removed, 0 files unresolved (no-changeset !)
0 files updated, 0 files merged, 1 files removed, 0 files unresolved (changeset !)
(branch merge, don't forget to commit)
$ echo "extra-change to (formelly h) during the merge" > d
$ hg ci -m "mBF-change-m-0 $case_desc - one way"
created new head
$ hg manifest --rev . --debug | grep " d"
1c334238bd42ec85c6a0d83fd1b2a898a6a3215d 644 d (no-changeset !)
cea2d99c0fde64672ef61953786fdff34f16e230 644 d (changeset !)
$ hg up 'desc("f-2")'
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg merge 'desc("b-1")'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ echo "extra-change to (formelly h) during the merge" > d
$ hg ci -m "mFB-change-m-0 $case_desc - the other way"
created new head
$ hg manifest --rev . --debug | grep " d"
1c334238bd42ec85c6a0d83fd1b2a898a6a3215d 644 d (no-changeset missing-correct-output !)
646ed7992dec41eb29635ab28268e7867d0e59a0 644 d (no-changeset known-bad-output !)
cea2d99c0fde64672ef61953786fdff34f16e230 644 d (changeset !)
#if no-changeset
$ hg debugindex d | ../no-linkrev
rev linkrev nodeid p1 p2
0 * d8252ab2e760 000000000000 000000000000
1 * b004912a8510 000000000000 000000000000
2 * 7b79e2fe0c89 000000000000 000000000000
3 * 17ec97e60577 d8252ab2e760 000000000000
4 * 06dabf50734c b004912a8510 17ec97e60577
5 * 19c0e3924691 17ec97e60577 b004912a8510
6 * 89c873a01d97 7b79e2fe0c89 17ec97e60577
7 * d55cb4e9ef57 000000000000 000000000000
8 * 1c334238bd42 7b79e2fe0c89 000000000000
9 * 646ed7992dec 7b79e2fe0c89 d8252ab2e760 (known-bad-output !)
#else
$ hg debugindex d | ../no-linkrev
rev linkrev nodeid p1 p2
0 * ae258f702dfe 000000000000 000000000000
1 * b004912a8510 000000000000 000000000000
2 * 5cce88bf349f ae258f702dfe 000000000000
3 * cc269dd788c8 b004912a8510 5cce88bf349f
4 * 51c91a115080 5cce88bf349f b004912a8510
5 * cea2d99c0fde ae258f702dfe 000000000000
#endif
$ hg log -G --rev '::(desc("mBF-change-m")+desc("mFB-change-m"))'
@ mFB-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - the other way
|\
+---o mBF-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - one way
| |/
| o f-2: rename i -> d
| |
| o f-1: rename h -> i
| |
o | b-1: b update
|/
o i-2: c -move-> d, s -move-> t
|
o i-1: a -move-> c, p -move-> s
|
o i-0 initial commit: a b h p q r
Decision from previous merge are properly chained with later merge Decision from previous merge are properly chained with later merge
------------------------------------------------------------------ ------------------------------------------------------------------
Subcase: chaining conflicting rename resolution Subcase: chaining conflicting rename resolution
``````````````````````````````````````````````` ```````````````````````````````````````````````
The "mAEm" and "mEAm" case create a rename tracking conflict on file 'f'. We The "mAEm" and "mEAm" case create a rename tracking conflict on file 'f'. We
add more change on the respective branch and merge again. These second merge add more change on the respective branch and merge again. These second merge
does not involve the file 'f' and the arbitration done within "mAEm" and "mEA" does not involve the file 'f' and the arbitration done within "mAEm" and "mEA"
about that file should stay unchanged. about that file should stay unchanged.
$ case_desc="chained merges (conflict -> simple) - same content everywhere" $ case_desc="chained merges (conflict -> simple) - same content everywhere"
(extra unrelated changes) (extra unrelated changes)
$ hg up 'desc("a-2")' $ hg up 'desc("a-2")'
2 files updated, 0 files merged, 0 files removed, 0 files unresolved 3 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo j > unrelated-j $ echo j > unrelated-j
$ hg add unrelated-j $ hg add unrelated-j
$ hg ci -m 'j-1: unrelated changes (based on the "a" series of changes)' $ hg ci -m 'j-1: unrelated changes (based on the "a" series of changes)'
created new head created new head
$ hg up 'desc("e-2")' $ hg up 'desc("e-2")'
2 files updated, 0 files merged, 2 files removed, 0 files unresolved (no-changeset !) 2 files updated, 0 files merged, 2 files removed, 0 files unresolved (no-changeset !)
1 files updated, 0 files merged, 2 files removed, 0 files unresolved (changeset !) 1 files updated, 0 files merged, 2 files removed, 0 files unresolved (changeset !)
mAE-change-m-0 merge with file update and copies info on both side - A side: rename d to f, E side: b to f, (same content for f in parent) - one way mAE-change-m-0 merge with file update and copies info on both side - A side: rename d to f, E side: b to f, (same content for f in parent) - one way
mAEm-0 merge with copies info on both side - A side: rename d to f, E side: b to f, (same content for f) - one way mAEm-0 merge with copies info on both side - A side: rename d to f, E side: b to f, (same content for f) - one way
mBAm-0 simple merge - A side: multiple renames, B side: unrelated update - one way mBAm-0 simple merge - A side: multiple renames, B side: unrelated update - one way
mBC+revert,Lm: chained merges (salvaged -> simple) - same content (when the file exists) mBC+revert,Lm: chained merges (salvaged -> simple) - same content (when the file exists)
mBC-revert-m-0 merge explicitely revive deleted file - B side: unrelated change, C side: delete d (restored by merge) - the other way mBC-revert-m-0 merge explicitely revive deleted file - B side: unrelated change, C side: delete d (restored by merge) - the other way
mBCm-0 simple merge - C side: delete a file with copies history , B side: unrelated update - one way mBCm-0 simple merge - C side: delete a file with copies history , B side: unrelated update - one way
mBCm-1 re-add d mBCm-1 re-add d
mBDm-0 simple merge - B side: unrelated update, D side: delete and recreate a file (with different content) - one way mBDm-0 simple merge - B side: unrelated update, D side: delete and recreate a file (with different content) - one way
mBF-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - one way
mBFm-0 simple merge - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - one way mBFm-0 simple merge - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - one way
mBRm-0 simple merge - B side: unrelated change, R side: overwrite d with a copy (from r->x->t) different content - one way mBRm-0 simple merge - B side: unrelated change, R side: overwrite d with a copy (from r->x->t) different content - one way
mCB+revert,Lm: chained merges (salvaged -> simple) - same content (when the file exists) mCB+revert,Lm: chained merges (salvaged -> simple) - same content (when the file exists)
mCB-revert-m-0 merge explicitely revive deleted file - B side: unrelated change, C side: delete d (restored by merge) - one way mCB-revert-m-0 merge explicitely revive deleted file - B side: unrelated change, C side: delete d (restored by merge) - one way
mCBm-0 simple merge - C side: delete a file with copies history , B side: unrelated update - the other way mCBm-0 simple merge - C side: delete a file with copies history , B side: unrelated update - the other way
mCBm-1 re-add d mCBm-1 re-add d
mCGm-0 merge updated/deleted - revive the file (updated content) - one way mCGm-0 merge updated/deleted - revive the file (updated content) - one way
mCH-delete-before-conflict-m-0 simple merge - C side: d is the results of renames then deleted, H side: d is result of another rename (same content as the other branch) - one way mCH-delete-before-conflict-m-0 simple merge - C side: d is the results of renames then deleted, H side: d is result of another rename (same content as the other branch) - one way
mDBm-0 simple merge - B side: unrelated update, D side: delete and recreate a file (with different content) - the other way mDBm-0 simple merge - B side: unrelated update, D side: delete and recreate a file (with different content) - the other way
mDGm-0 actual content merge, copies on one side - D side: delete and re-add (different content), G side: update content - one way mDGm-0 actual content merge, copies on one side - D side: delete and re-add (different content), G side: update content - one way
mEA,Jm: chained merges (conflict -> simple) - same content everywhere mEA,Jm: chained merges (conflict -> simple) - same content everywhere
mEA-change,Jm: chained merges (conflict+change -> simple) - same content on both branch in the initial merge mEA-change,Jm: chained merges (conflict+change -> simple) - same content on both branch in the initial merge
mEA-change-m-0 merge with file update and copies info on both side - A side: rename d to f, E side: b to f, (same content for f in parent) - the other way mEA-change-m-0 merge with file update and copies info on both side - A side: rename d to f, E side: b to f, (same content for f in parent) - the other way
mEAm-0 merge with copies info on both side - A side: rename d to f, E side: b to f, (same content for f) - the other way mEAm-0 merge with copies info on both side - A side: rename d to f, E side: b to f, (same content for f) - the other way
mFB-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - the other way
mFBm-0 simple merge - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - the other way mFBm-0 simple merge - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - the other way
mFG,Om: chained merges (copy-overwrite -> simple) - same content mFG,Om: chained merges (copy-overwrite -> simple) - same content
mFGm-0 merge - G side: content change, F side: copy overwrite, no content change - one way mFGm-0 merge - G side: content change, F side: copy overwrite, no content change - one way
mGCm-0 merge updated/deleted - revive the file (updated content) - the other way mGCm-0 merge updated/deleted - revive the file (updated content) - the other way
mGDm-0 actual content merge, copies on one side - D side: delete and re-add (different content), G side: update content - the other way mGDm-0 actual content merge, copies on one side - D side: delete and re-add (different content), G side: update content - the other way
mGF,Nm: chained merges (copy-overwrite -> simple) - same content mGF,Nm: chained merges (copy-overwrite -> simple) - same content
mGFm-0 merge - G side: content change, F side: copy overwrite, no content change - the other way mGFm-0 merge - G side: content change, F side: copy overwrite, no content change - the other way
mHC-delete-before-conflict-m-0 simple merge - C side: d is the results of renames then deleted, H side: d is result of another rename (same content as the other branch) - the other way mHC-delete-before-conflict-m-0 simple merge - C side: d is the results of renames then deleted, H side: d is result of another rename (same content as the other branch) - the other way
entry-0014 size 14 entry-0014 size 14
'\x00\x00\x00\x01\x08\x00\x00\x00\x01\x00\x00\x00\x00f' '\x00\x00\x00\x01\x08\x00\x00\x00\x01\x00\x00\x00\x00f'
merged : f, ; merged : f, ;
##### revision "mEA-change-m-0 merge with file update and copies info on both side - A side" ##### ##### revision "mEA-change-m-0 merge with file update and copies info on both side - A side" #####
1 sidedata entries 1 sidedata entries
entry-0014 size 14 entry-0014 size 14
'\x00\x00\x00\x01\x08\x00\x00\x00\x01\x00\x00\x00\x00f' '\x00\x00\x00\x01\x08\x00\x00\x00\x01\x00\x00\x00\x00f'
merged : f, ; merged : f, ;
##### revision "mBF-change-m-0 merge with extra change - B side" #####
1 sidedata entries
entry-0014 size 14
'\x00\x00\x00\x01\x14\x00\x00\x00\x01\x00\x00\x00\x00d' (no-upgraded no-upgraded-parallel !)
touched : d, ; (no-upgraded no-upgraded-parallel !)
'\x00\x00\x00\x01\x14\x00\x00\x00\x01\x00\x00\x00\x00d' (upgraded missing-correct-output !)
touched : d, ; (upgraded missing-correct-output !)
'\x00\x00\x00\x01\x08\x00\x00\x00\x01\x00\x00\x00\x00d' (upgraded known-bad-output !)
merged : d, ; (upgraded known-bad-output !)
'\x00\x00\x00\x01\x14\x00\x00\x00\x01\x00\x00\x00\x00d' (upgraded-parallel missing-correct-output !)
touched : d, ; (upgraded-parallel missing-correct-output !)
'\x00\x00\x00\x01\x08\x00\x00\x00\x01\x00\x00\x00\x00d' (upgraded-parallel known-bad-output !)
merged : d, ; (upgraded-parallel known-bad-output !)
##### revision "mFB-change-m-0 merge with extra change - B side" #####
1 sidedata entries
entry-0014 size 14
'\x00\x00\x00\x01\x08\x00\x00\x00\x01\x00\x00\x00\x00d' (known-bad-output !)
merged : d, ; (known-bad-output !)
'\x00\x00\x00\x01\x14\x00\x00\x00\x01\x00\x00\x00\x00d' (missing-correct-output !)
touched : d, ; (missing-correct-output !)
##### revision "j-1" ##### ##### revision "j-1" #####
1 sidedata entries 1 sidedata entries
entry-0014 size 24 entry-0014 size 24
'\x00\x00\x00\x01\x04\x00\x00\x00\x0b\x00\x00\x00\x00unrelated-j' '\x00\x00\x00\x01\x04\x00\x00\x00\x0b\x00\x00\x00\x00unrelated-j'
added : unrelated-j, ; added : unrelated-j, ;
##### revision "k-1" ##### ##### revision "k-1" #####
1 sidedata entries 1 sidedata entries
entry-0014 size 24 entry-0014 size 24
b (no-filelog !) b (no-filelog !)
A t A t
p p
R a R a
R b R b
R p R p
Subcase: merge overwrite common copy information, but with extra change during the merge
```````````````````````````````````````````````````````````````````````````````````
Merge:
- one with change to an unrelated file (b)
- one overwriting a file (d) with a rename (from h to i to d)
$ hg log -G --rev '::(desc("mBF-change-m")+desc("mFB-change-m"))'
o mFB-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - the other way
|\
+---o mBF-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - one way
| |/
| o f-2: rename i -> d
| |
| o f-1: rename h -> i
| |
o | b-1: b update
|/
o i-2: c -move-> d, s -move-> t
|
o i-1: a -move-> c, p -move-> s
|
o i-0 initial commit: a b h p q r
$ hg status --copies --rev 'desc("i-0")' --rev 'desc("mBF-change-m-0")'
M b
A d
h (filelog !)
h (sidedata !)
a (upgraded known-bad-output !)
h (upgraded missing-correct-output !)
a (upgraded-parallel known-bad-output !)
h (upgraded-parallel missing-correct-output !)
h (changeset !)
h (compatibility !)
A t
p
R a
R h
R p
$ hg status --copies --rev 'desc("i-0")' --rev 'desc("mFB-change-m-0")'
M b
A d
h (filelog missing-correct-output !)
a (filelog known-bad-output !)
h (sidedata !)
h (upgraded !)
h (upgraded-parallel !)
h (changeset !)
h (compatibility !)
A t
p
R a
R h
R p
$ hg status --copies --rev 'desc("b-1")' --rev 'desc("mBF-change-m-0")'
M d
h (no-filelog !)
R h
$ hg status --copies --rev 'desc("f-2")' --rev 'desc("mBF-change-m-0")'
M b
M d
$ hg status --copies --rev 'desc("f-1")' --rev 'desc("mBF-change-m-0")'
M b
M d
i (no-filelog !)
R i
$ hg status --copies --rev 'desc("b-1")' --rev 'desc("mFB-change-m-0")'
M d
h (no-filelog !)
R h
$ hg status --copies --rev 'desc("f-2")' --rev 'desc("mFB-change-m-0")'
M b
M d
$ hg status --copies --rev 'desc("f-1")' --rev 'desc("mFB-change-m-0")'
M b
M d
i (no-filelog !)
R i
#if no-changeset
$ hg log -Gfr 'desc("mBF-change-m-0")' d
o mBF-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - one way
|\
o : f-2: rename i -> d
| :
o : f-1: rename h -> i
:/
o i-0 initial commit: a b h p q r
#else
BROKEN: `hg log --follow <file>` relies on filelog metadata to work
$ hg log -Gfr 'desc("mBF-change-m-0")' d
o mBF-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - one way
:
o i-2: c -move-> d, s -move-> t
|
~
#endif
#if no-changeset
$ hg log -Gfr 'desc("mFB-change-m-0")' d
o mFB-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - the other way
|\
o : f-2: rename i -> d
| :
o : f-1: rename h -> i
:/
o i-2: c -move-> d, s -move-> t (known-bad-output !)
| (known-bad-output !)
o i-1: a -move-> c, p -move-> s (known-bad-output !)
| (known-bad-output !)
o i-0 initial commit: a b h p q r
#else
BROKEN: `hg log --follow <file>` relies on filelog metadata to work
$ hg log -Gfr 'desc("mFB-change-m-0")' d
o mFB-change-m-0 merge with extra change - B side: unrelated change, F side: overwrite d with a copy (from h->i->d) - the other way
:
o i-2: c -move-> d, s -move-> t
|
~
#endif
Decision from previous merge are properly chained with later merge Decision from previous merge are properly chained with later merge
------------------------------------------------------------------ ------------------------------------------------------------------
Subcase: chaining conflicting rename resolution Subcase: chaining conflicting rename resolution
``````````````````````````````````````````````` ```````````````````````````````````````````````
The "mAEm" and "mEAm" case create a rename tracking conflict on file 'f'. We The "mAEm" and "mEAm" case create a rename tracking conflict on file 'f'. We