##// END OF EJS Templates
upstream » mercurial-mirror
RSS

Clone from https://www.mercurial-scm.org/repo/hg-all

revlog: skeleton support for version 2 revlogs...
revlog: skeleton support for version 2 revlogs There are a number of improvements we want to make to revlogs that will require a new version - version 2. It is unclear what the full set of improvements will be or when we'll be done with them. What I do know is that the process will likely take longer than a single release, will require input from various stakeholders to evaluate changes, and will have many contentious debates and bikeshedding. It is unrealistic to develop revlog version 2 up front: there are just too many uncertainties that we won't know until things are implemented and experiments are run. Some changes will also be invasive and prone to bit rot, so sitting on dozens of patches is not practical. This commit introduces skeleton support for version 2 revlogs in a way that is flexible and not bound by backwards compatibility concerns. An experimental repo requirement for denoting revlog v2 has been added. The requirement string has a sub-version component to it. This will allow us to declare multiple requirements in the course of developing revlog v2. Whenever we change the in-development revlog v2 format, we can tweak the string, creating a new requirement and locking out old clients. This will allow us to make as many backwards incompatible changes and experiments to revlog v2 as we want. In other words, we can land code and make meaningful progress towards revlog v2 while still maintaining extreme format flexibility up until the point we freeze the format and remove the experimental labels. To enable the new repo requirement, you must supply an experimental and undocumented config option. But not just any boolean flag will do: you need to explicitly use a value that no sane person should ever type. This is an additional guard against enabling revlog v2 on an installation it shouldn't be enabled on. The specific scenario I'm trying to prevent is say a user with a 4.4 client with a frozen format enabling the option but then downgrading to 4.3 and accidentally creating repos with an outdated and unsupported repo format. Requiring a "challenge" string should prevent this. Because the format is not yet finalized and I don't want to take any chances, revlog v2's version is currently 0xDEAD. I figure squatting on a value we're likely never to use as an actual revlog version to mean "internal testing only" is acceptable. And "dead" is easily recognized as something meaningful. There is a bunch of cleanup that is needed before work on revlog v2 begins in earnest. I plan on doing that work once this patch is accepted and we're comfortable with the idea of starting down this path.
Valters Vingolds - - Load All Authors

File last commit:

r30755:0fbb3a5c default
r32697:19b9fc40 default
Show More
test-rebase-pull.t
451 lines | 8.3 KiB | text/troff | Tads3Lexer
/ tests / test-rebase-pull.t
History | Annotation | Raw |Copy content |Copy permalink
$ cat >> $HGRCPATH <<EOF
> [extensions]
> rebase=
> histedit=
>
> [alias]
> tglog = log -G --template "{rev}: '{desc}' {branches}\n"
> EOF
$ hg init a
$ cd a
$ echo C1 > C1
$ hg ci -Am C1
adding C1
$ echo C2 > C2
$ hg ci -Am C2
adding C2
$ cd ..
$ hg clone a b
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone a c
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd b
$ echo L1 > L1
$ hg ci -Am L1
adding L1
$ cd ../a
$ echo R1 > R1
$ hg ci -Am R1
adding R1
$ cd ../b
Now b has one revision to be pulled from a:
$ hg pull --rebase
pulling from $TESTTMP/a (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
rebasing 2:ff8d69a621f9 "L1"
saved backup bundle to $TESTTMP/b/.hg/strip-backup/ff8d69a621f9-160fa373-backup.hg (glob)
$ hg tglog
@ 3: 'L1'
|
o 2: 'R1'
|
o 1: 'C2'
|
o 0: 'C1'
Re-run:
$ hg pull --rebase
pulling from $TESTTMP/a (glob)
searching for changes
no changes found
Abort pull early if working dir is not clean:
$ echo L1-mod > L1
$ hg pull --rebase
abort: uncommitted changes
(cannot pull with rebase: please commit or shelve your changes first)
[255]
$ hg update --clean --quiet
Abort pull early if another operation (histedit) is in progress:
$ hg histedit . -q --commands - << EOF
> edit d80cc2da061e histedit: generate unfinished state
> EOF
Editing (d80cc2da061e), you may commit or record as needed now.
(hg histedit --continue to resume)
[1]
$ hg pull --rebase
abort: histedit in progress
(use 'hg histedit --continue' or 'hg histedit --abort')
[255]
$ hg histedit --abort --quiet
Abort pull early with pending uncommitted merge:
$ cd ..
$ hg clone --noupdate c d
$ cd d
$ hg tglog
o 1: 'C2'
|
o 0: 'C1'
$ hg update --quiet 0
$ echo M1 > M1
$ hg commit --quiet -Am M1
$ hg update --quiet 1
$ hg merge 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg pull --rebase
abort: outstanding uncommitted merge
(cannot pull with rebase: please commit or shelve your changes first)
[255]
$ hg update --clean --quiet
Abort pull early with unclean subrepo:
$ echo s = s > .hgsub
$ hg add .hgsub
$ hg init s
$ hg commit -m "generated a subrepo"
$ echo a > s/a
$ hg -R s add s/a
$ hg pull --rebase
abort: uncommitted changes in subrepository 's'
(cannot pull with rebase: please commit or shelve your changes first)
[255]
Invoke pull --rebase and nothing to rebase:
$ cd ../c
$ hg book norebase
$ hg pull --rebase
pulling from $TESTTMP/a (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
nothing to rebase - updating instead
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
updating bookmark norebase
$ hg tglog -l 1
@ 2: 'R1'
|
~
pull --rebase --update should ignore --update:
$ hg pull --rebase --update
pulling from $TESTTMP/a (glob)
searching for changes
no changes found
pull --rebase doesn't update if nothing has been pulled:
$ hg up -q 1
$ hg pull --rebase
pulling from $TESTTMP/a (glob)
searching for changes
no changes found
$ hg tglog -l 1
o 2: 'R1'
|
~
$ cd ..
pull --rebase works when a specific revision is pulled (issue3619)
$ cd a
$ hg tglog
@ 2: 'R1'
|
o 1: 'C2'
|
o 0: 'C1'
$ echo R2 > R2
$ hg ci -Am R2
adding R2
$ echo R3 > R3
$ hg ci -Am R3
adding R3
$ cd ../c
$ hg tglog
o 2: 'R1'
|
@ 1: 'C2'
|
o 0: 'C1'
$ echo L1 > L1
$ hg ci -Am L1
adding L1
created new head
$ hg pull --rev tip --rebase
pulling from $TESTTMP/a (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
rebasing 3:ff8d69a621f9 "L1"
saved backup bundle to $TESTTMP/c/.hg/strip-backup/ff8d69a621f9-160fa373-backup.hg (glob)
$ hg tglog
@ 5: 'L1'
|
o 4: 'R3'
|
o 3: 'R2'
|
o 2: 'R1'
|
o 1: 'C2'
|
o 0: 'C1'
pull --rebase works with bundle2 turned on
$ cd ../a
$ echo R4 > R4
$ hg ci -Am R4
adding R4
$ hg tglog
@ 5: 'R4'
|
o 4: 'R3'
|
o 3: 'R2'
|
o 2: 'R1'
|
o 1: 'C2'
|
o 0: 'C1'
$ cd ../c
$ hg pull --rebase
pulling from $TESTTMP/a (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
rebasing 5:518d153c0ba3 "L1"
saved backup bundle to $TESTTMP/c/.hg/strip-backup/518d153c0ba3-73407f14-backup.hg (glob)
$ hg tglog
@ 6: 'L1'
|
o 5: 'R4'
|
o 4: 'R3'
|
o 3: 'R2'
|
o 2: 'R1'
|
o 1: 'C2'
|
o 0: 'C1'
pull --rebase only update if there is nothing to rebase
$ cd ../a
$ echo R5 > R5
$ hg ci -Am R5
adding R5
$ hg tglog
@ 6: 'R5'
|
o 5: 'R4'
|
o 4: 'R3'
|
o 3: 'R2'
|
o 2: 'R1'
|
o 1: 'C2'
|
o 0: 'C1'
$ cd ../c
$ echo L2 > L2
$ hg ci -Am L2
adding L2
$ hg up 'desc(L1)'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg pull --rebase
pulling from $TESTTMP/a (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
rebasing 6:0d0727eb7ce0 "L1"
rebasing 7:c1f58876e3bf "L2"
saved backup bundle to $TESTTMP/c/.hg/strip-backup/0d0727eb7ce0-ef61ccb2-backup.hg (glob)
$ hg tglog
o 8: 'L2'
|
@ 7: 'L1'
|
o 6: 'R5'
|
o 5: 'R4'
|
o 4: 'R3'
|
o 3: 'R2'
|
o 2: 'R1'
|
o 1: 'C2'
|
o 0: 'C1'
pull --rebase update (no rebase) use proper update:
- warn about other head.
$ cd ../a
$ echo R6 > R6
$ hg ci -Am R6
adding R6
$ cd ../c
$ hg up 'desc(R5)'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg pull --rebase
pulling from $TESTTMP/a (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
nothing to rebase - updating instead
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 other heads for branch "default"
$ hg tglog
@ 9: 'R6'
|
| o 8: 'L2'
| |
| o 7: 'L1'
|/
o 6: 'R5'
|
o 5: 'R4'
|
o 4: 'R3'
|
o 3: 'R2'
|
o 2: 'R1'
|
o 1: 'C2'
|
o 0: 'C1'
Multiple pre-existing heads on the branch
-----------------------------------------
Pull bring content, but nothing on the current branch, we should not consider
pre-existing heads.
$ cd ../a
$ hg branch unrelatedbranch
marked working directory as branch unrelatedbranch
(branches are permanent and global, did you want a bookmark?)
$ echo B1 > B1
$ hg commit -Am B1
adding B1
$ cd ../c
$ hg up 'desc(L2)'
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg pull --rebase
pulling from $TESTTMP/a (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
nothing to rebase
There is two local heads and we pull a third one.
The second local head should not confuse the `hg pull rebase`.
$ hg up 'desc(R6)'
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo M1 > M1
$ hg commit -Am M1
adding M1
$ cd ../a
$ hg up 'desc(R6)'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo R7 > R7
$ hg commit -Am R7
adding R7
$ cd ../c
$ hg up 'desc(L2)'
2 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ hg pull --rebase
pulling from $TESTTMP/a (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
rebasing 7:864e0a2d2614 "L1"
rebasing 8:6dc0ea5dcf55 "L2"
saved backup bundle to $TESTTMP/c/.hg/strip-backup/864e0a2d2614-2f72c89c-backup.hg (glob)
$ hg tglog
@ 12: 'L2'
|
o 11: 'L1'
|
o 10: 'R7'
|
| o 9: 'M1'
|/
| o 8: 'B1' unrelatedbranch
|/
o 7: 'R6'
|
o 6: 'R5'
|
o 5: 'R4'
|
o 4: 'R3'
|
o 3: 'R2'
|
o 2: 'R1'
|
o 1: 'C2'
|
o 0: 'C1'