Mercurial > hg
view tests/test-phases.t @ 32697:19b9fc40cc51
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outdated and unsupported repo format.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.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Fri, 19 May 2017 20:29:11 -0700 |
parents | 24f55686a63d |
children | 67a3204c83c1 |
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$ hglog() { hg log --template "{rev} {phaseidx} {desc}\n" $*; } $ mkcommit() { > echo "$1" > "$1" > hg add "$1" > message="$1" > shift > hg ci -m "$message" $* > } $ hg init initialrepo $ cd initialrepo Cannot change null revision phase $ hg phase --force --secret null abort: cannot change null revision phase [255] $ hg phase null -1: public $ mkcommit A New commit are draft by default $ hglog 0 1 A Following commit are draft too $ mkcommit B $ hglog 1 1 B 0 1 A Draft commit are properly created over public one: $ hg phase --public . $ hg phase 1: public $ hglog 1 0 B 0 0 A $ mkcommit C $ mkcommit D $ hglog 3 1 D 2 1 C 1 0 B 0 0 A Test creating changeset as secret $ mkcommit E --config phases.new-commit='secret' $ hglog 4 2 E 3 1 D 2 1 C 1 0 B 0 0 A Test the secret property is inherited $ mkcommit H $ hglog 5 2 H 4 2 E 3 1 D 2 1 C 1 0 B 0 0 A Even on merge $ hg up -q 1 $ mkcommit "B'" created new head $ hglog 6 1 B' 5 2 H 4 2 E 3 1 D 2 1 C 1 0 B 0 0 A $ hg merge 4 # E 3 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg phase 6: draft 4: secret $ hg ci -m "merge B' and E" $ hglog 7 2 merge B' and E 6 1 B' 5 2 H 4 2 E 3 1 D 2 1 C 1 0 B 0 0 A Test secret changeset are not pushed $ hg init ../push-dest $ cat > ../push-dest/.hg/hgrc << EOF > [phases] > publish=False > EOF $ hg outgoing ../push-dest --template='{rev} {phase} {desc|firstline}\n' comparing with ../push-dest searching for changes 0 public A 1 public B 2 draft C 3 draft D 6 draft B' $ hg outgoing -r 'branch(default)' ../push-dest --template='{rev} {phase} {desc|firstline}\n' comparing with ../push-dest searching for changes 0 public A 1 public B 2 draft C 3 draft D 6 draft B' $ hg push ../push-dest -f # force because we push multiple heads pushing to ../push-dest searching for changes adding changesets adding manifests adding file changes added 5 changesets with 5 changes to 5 files (+1 heads) $ hglog 7 2 merge B' and E 6 1 B' 5 2 H 4 2 E 3 1 D 2 1 C 1 0 B 0 0 A $ cd ../push-dest $ hglog 4 1 B' 3 1 D 2 1 C 1 0 B 0 0 A (Issue3303) Check that remote secret changeset are ignore when checking creation of remote heads We add a secret head into the push destination. This secret head shadows a visible shared between the initial repo and the push destination. $ hg up -q 4 # B' $ mkcommit Z --config phases.new-commit=secret $ hg phase . 5: secret We now try to push a new public changeset that descend from the common public head shadowed by the remote secret head. $ cd ../initialrepo $ hg up -q 6 #B' $ mkcommit I created new head $ hg push ../push-dest pushing to ../push-dest searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) :note: The "(+1 heads)" is wrong as we do not had any visible head check that branch cache with "served" filter are properly computed and stored $ ls ../push-dest/.hg/cache/branch2* ../push-dest/.hg/cache/branch2-base ../push-dest/.hg/cache/branch2-served $ cat ../push-dest/.hg/cache/branch2-served 6d6770faffce199f1fddd1cf87f6f026138cf061 6 465891ffab3c47a3c23792f7dc84156e19a90722 b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e o default 6d6770faffce199f1fddd1cf87f6f026138cf061 o default $ hg heads -R ../push-dest --template '{rev}:{node} {phase}\n' #update visible cache too 6:6d6770faffce199f1fddd1cf87f6f026138cf061 draft 5:2713879da13d6eea1ff22b442a5a87cb31a7ce6a secret 3:b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e draft $ ls ../push-dest/.hg/cache/branch2* ../push-dest/.hg/cache/branch2-base ../push-dest/.hg/cache/branch2-served ../push-dest/.hg/cache/branch2-visible $ cat ../push-dest/.hg/cache/branch2-served 6d6770faffce199f1fddd1cf87f6f026138cf061 6 465891ffab3c47a3c23792f7dc84156e19a90722 b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e o default 6d6770faffce199f1fddd1cf87f6f026138cf061 o default $ cat ../push-dest/.hg/cache/branch2-visible 6d6770faffce199f1fddd1cf87f6f026138cf061 6 b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e o default 2713879da13d6eea1ff22b442a5a87cb31a7ce6a o default 6d6770faffce199f1fddd1cf87f6f026138cf061 o default Restore condition prior extra insertion. $ hg -q --config extensions.mq= strip . $ hg up -q 7 $ cd .. Test secret changeset are not pull $ hg init pull-dest $ cd pull-dest $ hg pull ../initialrepo pulling from ../initialrepo requesting all changes adding changesets adding manifests adding file changes added 5 changesets with 5 changes to 5 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hglog 4 0 B' 3 0 D 2 0 C 1 0 B 0 0 A $ cd .. But secret can still be bundled explicitly $ cd initialrepo $ hg bundle --base '4^' -r 'children(4)' ../secret-bundle.hg 4 changesets found $ cd .. Test secret changeset are not cloned (during local clone) $ hg clone -qU initialrepo clone-dest $ hglog -R clone-dest 4 0 B' 3 0 D 2 0 C 1 0 B 0 0 A Test summary $ hg summary -R clone-dest --verbose parent: -1:000000000000 (no revision checked out) branch: default commit: (clean) update: 5 new changesets (update) $ hg summary -R initialrepo parent: 7:17a481b3bccb tip merge B' and E branch: default commit: (clean) (secret) update: 1 new changesets, 2 branch heads (merge) phases: 3 draft, 3 secret $ hg summary -R initialrepo --quiet parent: 7:17a481b3bccb tip update: 1 new changesets, 2 branch heads (merge) Test revset $ cd initialrepo $ hglog -r 'public()' 0 0 A 1 0 B $ hglog -r 'draft()' 2 1 C 3 1 D 6 1 B' $ hglog -r 'secret()' 4 2 E 5 2 H 7 2 merge B' and E test that phase are displayed in log at debug level $ hg log --debug changeset: 7:17a481b3bccb796c0521ae97903d81c52bfee4af tag: tip phase: secret parent: 6:cf9fe039dfd67e829edf6522a45de057b5c86519 parent: 4:a603bfb5a83e312131cebcd05353c217d4d21dde manifest: 7:5e724ffacba267b2ab726c91fc8b650710deaaa8 user: test date: Thu Jan 01 00:00:00 1970 +0000 files+: C D E extra: branch=default description: merge B' and E changeset: 6:cf9fe039dfd67e829edf6522a45de057b5c86519 phase: draft parent: 1:27547f69f25460a52fff66ad004e58da7ad3fb56 parent: -1:0000000000000000000000000000000000000000 manifest: 6:ab8bfef2392903058bf4ebb9e7746e8d7026b27a user: test date: Thu Jan 01 00:00:00 1970 +0000 files+: B' extra: branch=default description: B' changeset: 5:a030c6be5127abc010fcbff1851536552e6951a8 phase: secret parent: 4:a603bfb5a83e312131cebcd05353c217d4d21dde parent: -1:0000000000000000000000000000000000000000 manifest: 5:5c710aa854874fe3d5fa7192e77bdb314cc08b5a user: test date: Thu Jan 01 00:00:00 1970 +0000 files+: H extra: branch=default description: H changeset: 4:a603bfb5a83e312131cebcd05353c217d4d21dde phase: secret parent: 3:b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e parent: -1:0000000000000000000000000000000000000000 manifest: 4:7173fd1c27119750b959e3a0f47ed78abe75d6dc user: test date: Thu Jan 01 00:00:00 1970 +0000 files+: E extra: branch=default description: E changeset: 3:b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e phase: draft parent: 2:f838bfaca5c7226600ebcfd84f3c3c13a28d3757 parent: -1:0000000000000000000000000000000000000000 manifest: 3:6e1f4c47ecb533ffd0c8e52cdc88afb6cd39e20c user: test date: Thu Jan 01 00:00:00 1970 +0000 files+: D extra: branch=default description: D changeset: 2:f838bfaca5c7226600ebcfd84f3c3c13a28d3757 phase: draft parent: 1:27547f69f25460a52fff66ad004e58da7ad3fb56 parent: -1:0000000000000000000000000000000000000000 manifest: 2:66a5a01817fdf5239c273802b5b7618d051c89e4 user: test date: Thu Jan 01 00:00:00 1970 +0000 files+: C extra: branch=default description: C changeset: 1:27547f69f25460a52fff66ad004e58da7ad3fb56 phase: public parent: 0:4a2df7238c3b48766b5e22fafbb8a2f506ec8256 parent: -1:0000000000000000000000000000000000000000 manifest: 1:cb5cbbc1bfbf24cc34b9e8c16914e9caa2d2a7fd user: test date: Thu Jan 01 00:00:00 1970 +0000 files+: B extra: branch=default description: B changeset: 0:4a2df7238c3b48766b5e22fafbb8a2f506ec8256 phase: public parent: -1:0000000000000000000000000000000000000000 parent: -1:0000000000000000000000000000000000000000 manifest: 0:007d8c9d88841325f5c6b06371b35b4e8a2b1a83 user: test date: Thu Jan 01 00:00:00 1970 +0000 files+: A extra: branch=default description: A (Issue3707) test invalid phase name $ mkcommit I --config phases.new-commit='babar' transaction abort! rollback completed abort: phases.new-commit: not a valid phase name ('babar') [255] Test phase command =================== initial picture $ hg log -G --template "{rev} {phase} {desc}\n" @ 7 secret merge B' and E |\ | o 6 draft B' | | +---o 5 secret H | | o | 4 secret E | | o | 3 draft D | | o | 2 draft C |/ o 1 public B | o 0 public A display changesets phase (mixing -r and plain rev specification) $ hg phase 1::4 -r 7 1: public 2: draft 3: draft 4: secret 7: secret move changeset forward (with -r option) $ hg phase --public -r 2 $ hg log -G --template "{rev} {phase} {desc}\n" @ 7 secret merge B' and E |\ | o 6 draft B' | | +---o 5 secret H | | o | 4 secret E | | o | 3 draft D | | o | 2 public C |/ o 1 public B | o 0 public A move changeset backward (without -r option) $ hg phase --draft --force 2 $ hg log -G --template "{rev} {phase} {desc}\n" @ 7 secret merge B' and E |\ | o 6 draft B' | | +---o 5 secret H | | o | 4 secret E | | o | 3 draft D | | o | 2 draft C |/ o 1 public B | o 0 public A move changeset forward and backward $ hg phase --draft --force 1::4 $ hg log -G --template "{rev} {phase} {desc}\n" @ 7 secret merge B' and E |\ | o 6 draft B' | | +---o 5 secret H | | o | 4 draft E | | o | 3 draft D | | o | 2 draft C |/ o 1 draft B | o 0 public A test partial failure $ hg phase --public 7 $ hg phase --draft '5 or 7' cannot move 1 changesets to a higher phase, use --force phase changed for 1 changesets [1] $ hg log -G --template "{rev} {phase} {desc}\n" @ 7 public merge B' and E |\ | o 6 public B' | | +---o 5 draft H | | o | 4 public E | | o | 3 public D | | o | 2 public C |/ o 1 public B | o 0 public A test complete failure $ hg phase --draft 7 cannot move 1 changesets to a higher phase, use --force no phases changed [1] $ cd .. test hidden changeset are not cloned as public (issue3935) $ cd initialrepo (enabling evolution) $ cat >> $HGRCPATH << EOF > [experimental] > evolution=createmarkers > EOF (making a changeset hidden; H in that case) $ hg debugobsolete `hg id --debug -r 5` $ cd .. $ hg clone initialrepo clonewithobs requesting all changes adding changesets adding manifests adding file changes added 7 changesets with 6 changes to 6 files updating to branch default 6 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd clonewithobs $ hg log -G --template "{rev} {phase} {desc}\n" @ 6 public merge B' and E |\ | o 5 public B' | | o | 4 public E | | o | 3 public D | | o | 2 public C |/ o 1 public B | o 0 public A test verify repo containing hidden changesets, which should not abort just because repo.cancopy() is False $ cd ../initialrepo $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 7 files, 8 changesets, 7 total revisions $ cd .. check whether HG_PENDING makes pending changes only in related repositories visible to an external hook. (emulate a transaction running concurrently by copied .hg/phaseroots.pending in subsequent test) $ cat > $TESTTMP/savepending.sh <<EOF > cp .hg/store/phaseroots.pending .hg/store/phaseroots.pending.saved > exit 1 # to avoid changing phase for subsequent tests > EOF $ cd push-dest $ hg phase 6 6: draft $ hg --config hooks.pretxnclose="sh $TESTTMP/savepending.sh" phase -f -s 6 transaction abort! rollback completed abort: pretxnclose hook exited with status 1 [255] $ cp .hg/store/phaseroots.pending.saved .hg/store/phaseroots.pending (check (in)visibility of phaseroot while transaction running in repo) $ cat > $TESTTMP/checkpending.sh <<EOF > echo '@initialrepo' > hg -R "$TESTTMP/initialrepo" phase 7 > echo '@push-dest' > hg -R "$TESTTMP/push-dest" phase 6 > exit 1 # to avoid changing phase for subsequent tests > EOF $ cd ../initialrepo $ hg phase 7 7: public $ hg --config hooks.pretxnclose="sh $TESTTMP/checkpending.sh" phase -f -s 7 @initialrepo 7: secret @push-dest 6: draft transaction abort! rollback completed abort: pretxnclose hook exited with status 1 [255]