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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.

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r16913:f2719b38 default
r24159:5b4ed033 3.3.1 stable
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test-bundle-r.t
328 lines | 8.3 KiB | text/troff | Tads3Lexer
$ hg init test
$ cd test
$ hg unbundle "$TESTDIR/bundles/remote.hg"
adding changesets
adding manifests
adding file changes
added 9 changesets with 7 changes to 4 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg up tip
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ..
$ for i in 0 1 2 3 4 5 6 7 8; do
> mkdir test-"$i"
> hg --cwd test-"$i" init
> hg -R test bundle -r "$i" test-"$i".hg test-"$i"
> cd test-"$i"
> hg unbundle ../test-"$i".hg
> hg verify
> hg tip -q
> cd ..
> done
searching for changes
1 changesets found
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
0:bfaf4b5cbf01
searching for changes
2 changesets found
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 2 changesets, 2 total revisions
1:21f32785131f
searching for changes
3 changesets found
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 1 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 3 changesets, 3 total revisions
2:4ce51a113780
searching for changes
4 changesets found
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 1 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 4 changesets, 4 total revisions
3:93ee6ab32777
searching for changes
2 changesets found
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 2 changesets, 2 total revisions
1:c70afb1ee985
searching for changes
3 changesets found
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 1 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 3 changesets, 3 total revisions
2:f03ae5a9b979
searching for changes
4 changesets found
adding changesets
adding manifests
adding file changes
added 4 changesets with 5 changes to 2 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 4 changesets, 5 total revisions
3:095cb14b1b4d
searching for changes
5 changesets found
adding changesets
adding manifests
adding file changes
added 5 changesets with 6 changes to 3 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
3 files, 5 changesets, 6 total revisions
4:faa2e4234c7a
searching for changes
5 changesets found
adding changesets
adding manifests
adding file changes
added 5 changesets with 5 changes to 2 files
(run 'hg update' to get a working copy)
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 5 changesets, 5 total revisions
4:916f1afdef90
$ cd test-8
$ hg pull ../test-7
pulling from ../test-7
searching for changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 2 changes to 3 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
4 files, 9 changesets, 7 total revisions
$ hg rollback
repository tip rolled back to revision 4 (undo pull)
$ cd ..
should fail
$ hg -R test bundle --base 2 -r tip test-bundle-branch1.hg test-3
abort: --base is incompatible with specifying a destination
[255]
$ hg -R test bundle -r tip test-bundle-branch1.hg
abort: repository default-push not found!
[255]
$ hg -R test bundle --base 2 -r tip test-bundle-branch1.hg
2 changesets found
$ hg -R test bundle --base 2 -r 7 test-bundle-branch2.hg
4 changesets found
$ hg -R test bundle --base 2 test-bundle-all.hg
6 changesets found
$ hg -R test bundle --base 3 -r tip test-bundle-should-fail.hg
1 changesets found
empty bundle
$ hg -R test bundle --base 7 --base 8 test-bundle-empty.hg
no changes found
[1]
issue76 msg2163
$ hg -R test bundle --base 3 -r 3 -r 3 test-bundle-cset-3.hg
no changes found
[1]
Issue1910: 'hg bundle --base $head' does not exclude $head from
result
$ hg -R test bundle --base 7 test-bundle-cset-7.hg
4 changesets found
$ hg clone test-2 test-9
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd test-9
revision 2
$ hg tip -q
2:4ce51a113780
$ hg unbundle ../test-bundle-should-fail.hg
adding changesets
transaction abort!
rollback completed
abort: 00changelog.i@93ee6ab32777: unknown parent!
[255]
revision 2
$ hg tip -q
2:4ce51a113780
$ hg unbundle ../test-bundle-all.hg
adding changesets
adding manifests
adding file changes
added 6 changesets with 4 changes to 4 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
revision 8
$ hg tip -q
8:916f1afdef90
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
4 files, 9 changesets, 7 total revisions
$ hg rollback
repository tip rolled back to revision 2 (undo unbundle)
revision 2
$ hg tip -q
2:4ce51a113780
$ hg unbundle ../test-bundle-branch1.hg
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
(run 'hg update' to get a working copy)
revision 4
$ hg tip -q
4:916f1afdef90
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 5 changesets, 5 total revisions
$ hg rollback
repository tip rolled back to revision 2 (undo unbundle)
$ hg unbundle ../test-bundle-branch2.hg
adding changesets
adding manifests
adding file changes
added 4 changesets with 3 changes to 3 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
revision 6
$ hg tip -q
6:faa2e4234c7a
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
3 files, 7 changesets, 6 total revisions
$ hg rollback
repository tip rolled back to revision 2 (undo unbundle)
$ hg unbundle ../test-bundle-cset-7.hg
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
(run 'hg update' to get a working copy)
revision 4
$ hg tip -q
4:916f1afdef90
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 5 changesets, 5 total revisions
$ cd ../test
$ hg merge 7
note: possible conflict - afile was renamed multiple times to:
anotherfile
adifferentfile
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m merge
$ cd ..
$ hg -R test bundle --base 2 test-bundle-head.hg
7 changesets found
$ hg clone test-2 test-10
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd test-10
$ hg unbundle ../test-bundle-head.hg
adding changesets
adding manifests
adding file changes
added 7 changesets with 4 changes to 4 files
(run 'hg update' to get a working copy)
revision 9
$ hg tip -q
9:03fc0b0e347c
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
4 files, 10 changesets, 7 total revisions
$ cd ..