sapling/eden/scm/tests/test-rebase-newancestor.t
Durham Goode 4f8c30b04e py3: enable 92 py3 tests
Summary: These now pass

Reviewed By: singhsrb

Differential Revision: D19785175

fbshipit-source-id: bf92757e3fe0753e1b61ffddfd30a37fb40a642f
2020-02-17 14:52:37 -08:00

391 lines
9.2 KiB
Perl

#chg-compatible
$ disable treemanifest
TODO: configure mutation
$ configure noevolution
$ enable rebase
$ setconfig format.usegeneraldelta=yes
$ readconfig <<EOF
> [revsetalias]
> dev=desc("dev")
> def=desc("def")
> EOF
$ hg init repo
$ cd repo
$ echo A > a
$ echo >> a
$ hg ci -Am A
adding a
$ echo B > a
$ echo >> a
$ hg ci -m B
$ echo C > a
$ echo >> a
$ hg ci -m C
$ hg up -q -C 0
$ echo D >> a
$ hg ci -Am AD
$ tglog
@ 3: 3878212183bd 'AD'
|
| o 2: 30ae917c0e4f 'C'
| |
| o 1: 0f4f7cb4f549 'B'
|/
o 0: 1e635d440a73 'A'
$ hg rebase -s 1 -d 3
rebasing 0f4f7cb4f549 "B"
merging a
rebasing 30ae917c0e4f "C"
merging a
saved backup bundle to $TESTTMP/repo/.hg/strip-backup/0f4f7cb4f549-82b3b163-rebase.hg
$ tglog
o 3: 25773bc4b4b0 'C'
|
o 2: c09015405f75 'B'
|
@ 1: 3878212183bd 'AD'
|
o 0: 1e635d440a73 'A'
$ cd ..
Test rebasing of merges with ancestors of the rebase destination - a situation
that often happens when trying to recover from repeated merging with a mainline
branch.
The test case creates a dev branch that contains a couple of merges from the
default branch. When rebasing to the default branch, these merges would be
merges with ancestors on the same branch. The merges _could_ contain some
interesting conflict resolutions or additional changes in the merge commit, but
that is mixed up with the actual merge stuff and there is in general no way to
separate them.
Note: The dev branch contains _no_ changes to f-default. It might be unclear
how rebasing of ancestor merges should be handled, but the current behavior
with spurious prompts for conflicts in files that didn't change seems very
wrong.
The branches are emulated using commit messages.
$ hg init ancestor-merge
$ cd ancestor-merge
$ drawdag <<'EOS'
> o default4
> |
> | o devmerge2
> |/|
> o | default3
> | |
> | o devmerge1
> |/|
> o | default2
> | |
> | o dev2
> | |
> | o dev1
> |/
> o default1
> EOS
$ hg clone -qU . ../ancestor-merge-2
Full rebase all the way back from branching point:
$ hg rebase -r 'only(dev,def)' -d $default4 --config ui.interactive=True << EOF
> c
> EOF
rebasing 1e48f4172d62 "dev1"
rebasing aeae94a564c6 "dev2"
rebasing da5b1609fcb1 "devmerge1"
note: rebase of 6:da5b1609fcb1 created no changes to commit
rebasing bea5bcfda5f9 "devmerge2"
note: rebase of 7:bea5bcfda5f9 created no changes to commit
saved backup bundle to $TESTTMP/ancestor-merge/.hg/strip-backup/1e48f4172d62-cc446d63-rebase.hg
$ tglog
o 5: f66b059fae0f 'dev2'
|
o 4: 1073bfc4c1ed 'dev1'
|
o 3: 22e5a3eb70f1 'default4'
|
o 2: a51061c4b2cb 'default3'
|
o 1: dfbdae6572c4 'default2'
|
o 0: 6ee4113c6616 'default1'
Grafty cherry picking rebasing:
$ cd ../ancestor-merge-2
$ hg phase -fdr0:
$ hg rebase -r 'children(only(dev,def))' -d $default4 --config ui.interactive=True << EOF
> c
> EOF
rebasing aeae94a564c6 "dev2"
rebasing da5b1609fcb1 "devmerge1"
note: rebase of 6:da5b1609fcb1 created no changes to commit
rebasing bea5bcfda5f9 "devmerge2"
note: rebase of 7:bea5bcfda5f9 created no changes to commit
saved backup bundle to $TESTTMP/ancestor-merge-2/.hg/strip-backup/aeae94a564c6-2b0faa8a-rebase.hg
$ tglog
o 5: 9cdc50ee9a9d 'dev2'
|
o 4: 22e5a3eb70f1 'default4'
|
o 3: a51061c4b2cb 'default3'
|
| o 2: 1e48f4172d62 'dev1'
| |
o | 1: dfbdae6572c4 'default2'
|/
o 0: 6ee4113c6616 'default1'
$ cd ..
Test order of parents of rebased merged with un-rebased changes as p1.
$ hg init parentorder
$ cd parentorder
$ touch f
$ hg ci -Aqm common
$ touch change
$ hg ci -Aqm change
$ touch target
$ hg ci -Aqm target
$ hg up -qr 0
$ touch outside
$ hg ci -Aqm outside
$ hg merge -qr 1
$ hg ci -m 'merge p1 3=outside p2 1=ancestor'
$ hg par
changeset: 4:6990226659be
parent: 3:f59da8fc0fcf
parent: 1:dd40c13f7a6f
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge p1 3=outside p2 1=ancestor
$ hg up -qr 1
$ hg merge -qr 3
$ hg ci -qm 'merge p1 1=ancestor p2 3=outside'
$ hg par
changeset: 5:a57575f79074
parent: 1:dd40c13f7a6f
parent: 3:f59da8fc0fcf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge p1 1=ancestor p2 3=outside
$ tglog
@ 5: a57575f79074 'merge p1 1=ancestor p2 3=outside'
|\
+---o 4: 6990226659be 'merge p1 3=outside p2 1=ancestor'
| |/
| o 3: f59da8fc0fcf 'outside'
| |
+---o 2: a60552eb93fb 'target'
| |
o | 1: dd40c13f7a6f 'change'
|/
o 0: 02f0f58d5300 'common'
$ hg rebase -r 4 -d 2
rebasing 6990226659be "merge p1 3=outside p2 1=ancestor"
saved backup bundle to $TESTTMP/parentorder/.hg/strip-backup/6990226659be-4d67a0d3-rebase.hg
$ hg tip
changeset: 5:cca50676b1c5
parent: 2:a60552eb93fb
parent: 3:f59da8fc0fcf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge p1 3=outside p2 1=ancestor
$ hg rebase -r 4 -d 2
rebasing a57575f79074 "merge p1 1=ancestor p2 3=outside"
saved backup bundle to $TESTTMP/parentorder/.hg/strip-backup/a57575f79074-385426e5-rebase.hg
$ hg tip
changeset: 5:f9daf77ffe76
parent: 2:a60552eb93fb
parent: 3:f59da8fc0fcf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge p1 1=ancestor p2 3=outside
$ tglog
@ 5: f9daf77ffe76 'merge p1 1=ancestor p2 3=outside'
|\
+---o 4: cca50676b1c5 'merge p1 3=outside p2 1=ancestor'
| |/
| o 3: f59da8fc0fcf 'outside'
| |
o | 2: a60552eb93fb 'target'
| |
o | 1: dd40c13f7a6f 'change'
|/
o 0: 02f0f58d5300 'common'
rebase of merge of ancestors
$ hg up -qr 2
$ hg merge -qr 3
$ echo 'other change while merging future "rebase ancestors"' > other
$ hg ci -Aqm 'merge rebase ancestors'
$ hg rebase -d 5 -v
rebasing 4c5f12f25ebe "merge rebase ancestors"
resolving manifests
removing other
note: merging f9daf77ffe76+ and 4c5f12f25ebe using bids from ancestors a60552eb93fb and f59da8fc0fcf
calculating bids for ancestor a60552eb93fb
resolving manifests
calculating bids for ancestor f59da8fc0fcf
resolving manifests
auction for merging merge bids
other: consensus for g
end of auction
getting other
committing files:
other
committing manifest
committing changelog
rebase merging completed
1 changesets found
uncompressed size of bundle content:
199 (changelog)
216 (manifests)
182 other
saved backup bundle to $TESTTMP/parentorder/.hg/strip-backup/4c5f12f25ebe-f46990e5-rebase.hg
1 changesets found
uncompressed size of bundle content:
254 (changelog)
167 (manifests)
182 other
adding branch
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
rebase completed
$ tglog
@ 6: 113755df812b 'merge rebase ancestors'
|
o 5: f9daf77ffe76 'merge p1 1=ancestor p2 3=outside'
|\
+---o 4: cca50676b1c5 'merge p1 3=outside p2 1=ancestor'
| |/
| o 3: f59da8fc0fcf 'outside'
| |
o | 2: a60552eb93fb 'target'
| |
o | 1: dd40c13f7a6f 'change'
|/
o 0: 02f0f58d5300 'common'
Due to the limitation of 3-way merge algorithm (1 merge base), rebasing a merge
may include unwanted content:
$ hg init $TESTTMP/dual-merge-base1
$ cd $TESTTMP/dual-merge-base1
$ hg debugdrawdag <<'EOS'
> F
> /|
> D E
> | |
> B C
> |/
> A Z
> |/
> R
> EOS
$ hg rebase -r D+E+F -d Z
rebasing 5f2c926dfecf "D" (D)
rebasing b296604d9846 "E" (E)
rebasing caa9781e507d "F" (F)
abort: rebasing 7:caa9781e507d will include unwanted changes from 4:d6003a550c2c or 3:c1e6b162678d
[255]
The warning does not get printed if there is no unwanted change detected:
$ hg init $TESTTMP/dual-merge-base2
$ cd $TESTTMP/dual-merge-base2
$ hg debugdrawdag <<'EOS'
> D
> /|
> B C
> |/
> A Z
> |/
> R
> EOS
$ hg rebase -r B+C+D -d Z
rebasing c1e6b162678d "B" (B)
rebasing d6003a550c2c "C" (C)
rebasing c8f78076273e "D" (D)
saved backup bundle to $TESTTMP/dual-merge-base2/.hg/strip-backup/d6003a550c2c-6f1424b6-rebase.hg
$ hg manifest -r 'desc(D)'
B
C
R
Z
The merge base could be different from old p1 (changed parent becomes new p1):
$ hg init $TESTTMP/chosen-merge-base1
$ cd $TESTTMP/chosen-merge-base1
$ hg debugdrawdag <<'EOS'
> F
> /|
> D E
> | |
> B C Z
> EOS
$ hg rebase -r D+F -d Z
rebasing 004dc1679908 "D" (D)
rebasing 4be4cbf6f206 "F" (F)
saved backup bundle to $TESTTMP/chosen-merge-base1/.hg/strip-backup/004dc1679908-06a66a3c-rebase.hg
$ hg manifest -r 'desc(F)'
C
D
E
Z
$ hg log -r `hg log -r 'desc(F)' -T '{p1node}'` -T '{desc}\n'
D
$ hg init $TESTTMP/chosen-merge-base2
$ cd $TESTTMP/chosen-merge-base2
$ hg debugdrawdag <<'EOS'
> F
> /|
> D E
> | |
> B C Z
> EOS
$ hg rebase -r E+F -d Z
rebasing 974e4943c210 "E" (E)
rebasing 4be4cbf6f206 "F" (F)
saved backup bundle to $TESTTMP/chosen-merge-base2/.hg/strip-backup/974e4943c210-b2874da5-rebase.hg
$ hg manifest -r 'desc(F)'
B
D
E
Z
$ hg log -r `hg log -r 'desc(F)' -T '{p1node}'` -T '{desc}\n'
E