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revisionbranchcache: fall back to slow path if starting readonly (issue4531)...
revisionbranchcache: fall back to slow path if starting readonly (issue4531) Transitioning to Mercurial versions with revision branch cache could be slow as long as all operations were readonly (revset queries) and the cache would be populated but not written back. Instead, fall back to using the consistently slow path when readonly and the cache doesn't exist yet. That avoids the overhead of populating the cache without writing it back. If not readonly, it will still populate all missing entries initially. That avoids repeated writing of the cache file with small updates, and it also makes sure a fully populated cache available for the readonly operations.
Durham Goode - - Load All Authors

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r23835:aa4a1672 default
r24159:5b4ed033 3.3.1 stable
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test-rebase-cache.t
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/ tests / test-rebase-cache.t
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$ cat >> $HGRCPATH <<EOF
> [extensions]
> rebase=
> mq=
>
> [phases]
> publish=False
>
> [alias]
> tglog = log -G --template "{rev}: '{desc}' {branches}\n"
> theads = heads --template "{rev}: '{desc}' {branches}\n"
> EOF
$ hg init a
$ cd a
$ echo a > a
$ hg ci -Am A
adding a
$ hg branch branch1
marked working directory as branch branch1
(branches are permanent and global, did you want a bookmark?)
$ hg ci -m 'branch1'
$ echo b > b
$ hg ci -Am B
adding b
$ hg up -q 0
$ hg branch branch2
marked working directory as branch branch2
(branches are permanent and global, did you want a bookmark?)
$ hg ci -m 'branch2'
$ echo c > C
$ hg ci -Am C
adding C
$ hg up -q 2
$ hg branch -f branch2
marked working directory as branch branch2
(branches are permanent and global, did you want a bookmark?)
$ echo d > d
$ hg ci -Am D
adding d
created new head
$ echo e > e
$ hg ci -Am E
adding e
$ hg update default
0 files updated, 0 files merged, 3 files removed, 0 files unresolved
$ hg branch branch3
marked working directory as branch branch3
(branches are permanent and global, did you want a bookmark?)
$ hg ci -m 'branch3'
$ echo f > f
$ hg ci -Am F
adding f
$ cd ..
Rebase part of branch2 (5-6) onto branch3 (8):
$ hg clone -q -u . a a1
$ cd a1
$ hg tglog
@ 8: 'F' branch3
|
o 7: 'branch3' branch3
|
| o 6: 'E' branch2
| |
| o 5: 'D' branch2
| |
| | o 4: 'C' branch2
| | |
+---o 3: 'branch2' branch2
| |
| o 2: 'B' branch1
| |
| o 1: 'branch1' branch1
|/
o 0: 'A'
$ hg branches
branch3 8:4666b71e8e32
branch2 6:5097051d331d
branch1 2:0a03079c47fd (inactive)
default 0:1994f17a630e (inactive)
$ hg theads
8: 'F' branch3
6: 'E' branch2
4: 'C' branch2
2: 'B' branch1
0: 'A'
$ hg rebase -s 5 -d 8
rebasing 5:635859577d0b "D"
rebasing 6:5097051d331d "E"
saved backup bundle to $TESTTMP/a1/.hg/strip-backup/635859577d0b-89160bff-backup.hg (glob)
$ hg branches
branch3 8:466cdfb14b62
branch2 4:e4fdb121d036
branch1 2:0a03079c47fd
default 0:1994f17a630e (inactive)
$ hg theads
8: 'E' branch3
4: 'C' branch2
2: 'B' branch1
0: 'A'
$ hg tglog
o 8: 'E' branch3
|
o 7: 'D' branch3
|
@ 6: 'F' branch3
|
o 5: 'branch3' branch3
|
| o 4: 'C' branch2
| |
| o 3: 'branch2' branch2
|/
| o 2: 'B' branch1
| |
| o 1: 'branch1' branch1
|/
o 0: 'A'
$ cd ..
Rebase head of branch3 (8) onto branch2 (6):
$ hg clone -q -u . a a2
$ cd a2
$ hg tglog
@ 8: 'F' branch3
|
o 7: 'branch3' branch3
|
| o 6: 'E' branch2
| |
| o 5: 'D' branch2
| |
| | o 4: 'C' branch2
| | |
+---o 3: 'branch2' branch2
| |
| o 2: 'B' branch1
| |
| o 1: 'branch1' branch1
|/
o 0: 'A'
$ hg rebase -s 8 -d 6
rebasing 8:4666b71e8e32 "F" (tip)
saved backup bundle to $TESTTMP/a2/.hg/strip-backup/4666b71e8e32-fc1c4e96-backup.hg (glob)
$ hg branches
branch2 8:6b4bdc1b5ac0
branch3 7:653b9feb4616
branch1 2:0a03079c47fd (inactive)
default 0:1994f17a630e (inactive)
$ hg theads
8: 'F' branch2
7: 'branch3' branch3
4: 'C' branch2
2: 'B' branch1
0: 'A'
$ hg tglog
@ 8: 'F' branch2
|
| o 7: 'branch3' branch3
| |
o | 6: 'E' branch2
| |
o | 5: 'D' branch2
| |
| | o 4: 'C' branch2
| | |
| | o 3: 'branch2' branch2
| |/
o | 2: 'B' branch1
| |
o | 1: 'branch1' branch1
|/
o 0: 'A'
$ hg verify -q
$ cd ..
Rebase entire branch3 (7-8) onto branch2 (6):
$ hg clone -q -u . a a3
$ cd a3
$ hg tglog
@ 8: 'F' branch3
|
o 7: 'branch3' branch3
|
| o 6: 'E' branch2
| |
| o 5: 'D' branch2
| |
| | o 4: 'C' branch2
| | |
+---o 3: 'branch2' branch2
| |
| o 2: 'B' branch1
| |
| o 1: 'branch1' branch1
|/
o 0: 'A'
$ hg rebase -s 7 -d 6
rebasing 7:653b9feb4616 "branch3"
note: rebase of 7:653b9feb4616 created no changes to commit
rebasing 8:4666b71e8e32 "F" (tip)
saved backup bundle to $TESTTMP/a3/.hg/strip-backup/653b9feb4616-3c88de16-backup.hg (glob)
$ hg branches
branch2 7:6b4bdc1b5ac0
branch1 2:0a03079c47fd (inactive)
default 0:1994f17a630e (inactive)
$ hg theads
7: 'F' branch2
4: 'C' branch2
2: 'B' branch1
0: 'A'
$ hg tglog
@ 7: 'F' branch2
|
o 6: 'E' branch2
|
o 5: 'D' branch2
|
| o 4: 'C' branch2
| |
| o 3: 'branch2' branch2
| |
o | 2: 'B' branch1
| |
o | 1: 'branch1' branch1
|/
o 0: 'A'
$ hg verify -q
Stripping multiple branches in one go bypasses the fast-case code to
update the branch cache.
$ hg strip 2
0 files updated, 0 files merged, 4 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/a3/.hg/strip-backup/0a03079c47fd-11b7c407-backup.hg (glob)
$ hg tglog
o 3: 'C' branch2
|
o 2: 'branch2' branch2
|
| @ 1: 'branch1' branch1
|/
o 0: 'A'
$ hg branches
branch2 3:e4fdb121d036
branch1 1:63379ac49655
default 0:1994f17a630e (inactive)
$ hg theads
3: 'C' branch2
1: 'branch1' branch1
0: 'A'
Fast path branchcache code should not be invoked if branches stripped is not
the same as branches remaining.
$ hg init b
$ cd b
$ hg branch branch1
marked working directory as branch branch1
(branches are permanent and global, did you want a bookmark?)
$ hg ci -m 'branch1'
$ hg branch branch2
marked working directory as branch branch2
(branches are permanent and global, did you want a bookmark?)
$ hg ci -m 'branch2'
$ hg branch -f branch1
marked working directory as branch branch1
(branches are permanent and global, did you want a bookmark?)
$ echo a > A
$ hg ci -Am A
adding A
created new head
$ hg tglog
@ 2: 'A' branch1
|
o 1: 'branch2' branch2
|
o 0: 'branch1' branch1
$ hg theads
2: 'A' branch1
1: 'branch2' branch2
$ hg strip 2
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/a3/b/.hg/strip-backup/a5b4b27ed7b4-a3b6984e-backup.hg (glob)
$ hg theads
1: 'branch2' branch2
0: 'branch1' branch1
Make sure requesting to strip a revision already stripped does not confuse things.
Try both orders.
$ cd ..
$ hg init c
$ cd c
$ echo a > a
$ hg ci -Am A
adding a
$ echo b > b
$ hg ci -Am B
adding b
$ echo c > c
$ hg ci -Am C
adding c
$ echo d > d
$ hg ci -Am D
adding d
$ echo e > e
$ hg ci -Am E
adding e
$ hg tglog
@ 4: 'E'
|
o 3: 'D'
|
o 2: 'C'
|
o 1: 'B'
|
o 0: 'A'
$ hg strip 3 4
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/a3/c/.hg/strip-backup/67a385d4e6f2-b9243789-backup.hg (glob)
$ hg theads
2: 'C'
$ hg strip 2 1
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/a3/c/.hg/strip-backup/6c81ed0049f8-a687065f-backup.hg (glob)
$ hg theads
0: 'A'
Make sure rebase does not break for phase/filter related reason
----------------------------------------------------------------
(issue3858)
$ cd ..
$ cat >> $HGRCPATH << EOF
> [ui]
> logtemplate={rev} {desc} {phase}\n
> EOF
$ hg init c4
$ cd c4
$ echo a > a
$ hg ci -Am A
adding a
$ echo b > b
$ hg ci -Am B
adding b
$ hg up 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo c > c
$ hg ci -Am C
adding c
created new head
$ hg up 1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m d
$ hg up 2
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo e > e
$ hg ci -Am E
adding e
created new head
$ hg merge 3
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m F
$ hg up 3
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo g > g
$ hg ci -Am G
adding g
created new head
$ echo h > h
$ hg ci -Am H
adding h
$ hg up 5
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo i > i
$ hg ci -Am I
adding i
Turn most changeset public
$ hg ph -p 7
$ hg heads
8 I draft
7 H public
$ hg log -G
@ 8 I draft
|
| o 7 H public
| |
| o 6 G public
| |
o | 5 F draft
|\|
o | 4 E draft
| |
| o 3 d public
|/|
o | 2 C public
| |
| o 1 B public
|/
o 0 A public
$ cat > $TESTTMP/checkeditform.sh <<EOF
> env | grep HGEDITFORM
> true
> EOF
$ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg rebase --dest 7 --source 5 -e
rebasing 5:361a99976cc9 "F"
HGEDITFORM=rebase.merge
rebasing 8:326cfedc031c "I" (tip)
HGEDITFORM=rebase.normal
saved backup bundle to $TESTTMP/a3/c4/.hg/strip-backup/361a99976cc9-35e980d0-backup.hg (glob)