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strip: incrementally update the branchheads cache after a strip...
strip: incrementally update the branchheads cache after a strip This function augments strip to incrementally update the branchheads cache rather than recompute it from scratch. This speeds up the performance of strip and rebase on repos with long history. The performance optimization only happens if the revisions stripped are all on the same branch and the parents of the stripped revisions are also on that same branch. This adds a few test cases, particularly one that reproduces the extra heads that mpm observed.

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test-rebase-detach.t
400 lines | 5.6 KiB | text/troff | Tads3Lexer
/ tests / test-rebase-detach.t
$ cat >> $HGRCPATH <<EOF
> [extensions]
> graphlog=
> rebase=
>
> [phases]
> publish=False
>
> [alias]
> tglog = log -G --template "{rev}: '{desc}' {branches}\n"
> EOF
$ hg init a
$ cd a
$ hg unbundle "$TESTDIR/bundles/rebase.hg"
adding changesets
adding manifests
adding file changes
added 8 changesets with 7 changes to 7 files (+2 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg up tip
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ..
Rebasing D onto H detaching from C:
$ hg clone -q -u . a a1
$ cd a1
$ hg tglog
@ 7: 'H'
|
| o 6: 'G'
|/|
o | 5: 'F'
| |
| o 4: 'E'
|/
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ hg phase --force --secret 3
$ hg rebase -s 3 -d 7
saved backup bundle to $TESTTMP/a1/.hg/strip-backup/*-backup.hg (glob)
$ hg log -G --template "{rev}:{phase} '{desc}' {branches}\n"
@ 7:secret 'D'
|
o 6:draft 'H'
|
| o 5:draft 'G'
|/|
o | 4:draft 'F'
| |
| o 3:draft 'E'
|/
| o 2:draft 'C'
| |
| o 1:draft 'B'
|/
o 0:draft 'A'
$ hg manifest
A
D
F
H
$ cd ..
Rebasing C onto H detaching from B:
$ hg clone -q -u . a a2
$ cd a2
$ hg tglog
@ 7: 'H'
|
| o 6: 'G'
|/|
o | 5: 'F'
| |
| o 4: 'E'
|/
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ hg rebase -s 2 -d 7
saved backup bundle to $TESTTMP/a2/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 7: 'D'
|
o 6: 'C'
|
o 5: 'H'
|
| o 4: 'G'
|/|
o | 3: 'F'
| |
| o 2: 'E'
|/
| o 1: 'B'
|/
o 0: 'A'
$ hg manifest
A
C
D
F
H
$ cd ..
Rebasing B onto H using detach (same as not using it):
$ hg clone -q -u . a a3
$ cd a3
$ hg tglog
@ 7: 'H'
|
| o 6: 'G'
|/|
o | 5: 'F'
| |
| o 4: 'E'
|/
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ hg rebase -s 1 -d 7
saved backup bundle to $TESTTMP/a3/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 7: 'D'
|
o 6: 'C'
|
o 5: 'B'
|
o 4: 'H'
|
| o 3: 'G'
|/|
o | 2: 'F'
| |
| o 1: 'E'
|/
o 0: 'A'
$ hg manifest
A
B
C
D
F
H
$ cd ..
Rebasing C onto H detaching from B and collapsing:
$ hg clone -q -u . a a4
$ cd a4
$ hg phase --force --secret 3
$ hg tglog
@ 7: 'H'
|
| o 6: 'G'
|/|
o | 5: 'F'
| |
| o 4: 'E'
|/
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ hg rebase --collapse -s 2 -d 7
saved backup bundle to $TESTTMP/a4/.hg/strip-backup/*-backup.hg (glob)
$ hg log -G --template "{rev}:{phase} '{desc}' {branches}\n"
@ 6:secret 'Collapsed revision
| * C
| * D'
o 5:draft 'H'
|
| o 4:draft 'G'
|/|
o | 3:draft 'F'
| |
| o 2:draft 'E'
|/
| o 1:draft 'B'
|/
o 0:draft 'A'
$ hg manifest
A
C
D
F
H
$ cd ..
Rebasing across null as ancestor
$ hg clone -q -U a a5
$ cd a5
$ echo x > x
$ hg add x
$ hg ci -m "extra branch"
created new head
$ hg tglog
@ 8: 'extra branch'
o 7: 'H'
|
| o 6: 'G'
|/|
o | 5: 'F'
| |
| o 4: 'E'
|/
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ hg rebase -s 1 -d tip
saved backup bundle to $TESTTMP/a5/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 8: 'D'
|
o 7: 'C'
|
o 6: 'B'
|
o 5: 'extra branch'
o 4: 'H'
|
| o 3: 'G'
|/|
o | 2: 'F'
| |
| o 1: 'E'
|/
o 0: 'A'
$ hg rebase -d 5 -s 7
saved backup bundle to $TESTTMP/a5/.hg/strip-backup/13547172c9c0-backup.hg (glob)
$ hg tglog
@ 8: 'D'
|
o 7: 'C'
|
| o 6: 'B'
|/
o 5: 'extra branch'
o 4: 'H'
|
| o 3: 'G'
|/|
o | 2: 'F'
| |
| o 1: 'E'
|/
o 0: 'A'
$ cd ..
Verify that target is not selected as external rev (issue3085)
$ hg clone -q -U a a6
$ cd a6
$ hg up -q 6
$ echo "I" >> E
$ hg ci -m "I"
$ hg merge 7
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m "Merge"
$ echo "J" >> F
$ hg ci -m "J"
$ hg rebase -s 8 -d 7 --collapse --config ui.merge=internal:other
remote changed E which local deleted
use (c)hanged version or leave (d)eleted? c
saved backup bundle to $TESTTMP/a6/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 8: 'Collapsed revision
| * I
| * Merge
| * J'
o 7: 'H'
|
| o 6: 'G'
|/|
o | 5: 'F'
| |
| o 4: 'E'
|/
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ hg parents
changeset: 8:9472f4b1d736
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Collapsed revision
$ cd ..
Ensure --continue restores a correct state (issue3046) and phase:
$ hg clone -q a a7
$ cd a7
$ hg up -q 3
$ echo 'H2' > H
$ hg ci -A -m 'H2'
adding H
$ hg phase --force --secret 8
$ hg rebase -s 8 -d 7 --config ui.merge=internal:fail
merging H
warning: conflicts during merge.
merging H incomplete! (edit conflicts, then use 'hg resolve --mark')
abort: unresolved conflicts (see hg resolve, then hg rebase --continue)
[255]
$ hg resolve --all -t internal:local
$ hg rebase -c
saved backup bundle to $TESTTMP/a7/.hg/strip-backup/6215fafa5447-backup.hg (glob)
$ hg log -G --template "{rev}:{phase} '{desc}' {branches}\n"
@ 7:draft 'H'
|
| o 6:draft 'G'
|/|
o | 5:draft 'F'
| |
| o 4:draft 'E'
|/
| o 3:draft 'D'
| |
| o 2:draft 'C'
| |
| o 1:draft 'B'
|/
o 0:draft 'A'
$ cd ..