Mercurial > hg
view tests/test-bundle-r.t @ 33289:abd7dedbaa36
sparse: vendor Facebook-developed extension
Facebook has developed an extension to enable "sparse" checkouts -
a working directory with a subset of files. This feature is a critical
component in enabling repositories to scale to infinite number of
files while retaining reasonable performance. It's worth noting
that sparse checkout is only one possible solution to this problem:
another is virtual filesystems that realize files on first access.
But given that virtual filesystems may not be accessible to all
users, sparse checkout is necessary as a fallback.
Per mailing list discussion at
https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-March/095868.html
we want to add sparse checkout to the Mercurial distribution via
roughly the following mechanism:
1. Vendor extension as-is with minimal modifications (this patch)
2. Refactor extension so it is more clearly experimental and inline
with Mercurial practices
3. Move code from extension into core where possible
4. Drop experimental labeling and/or move feature into core
after sign-off from narrow clone feature owners
This commit essentially copies the sparse extension and tests
from revision 71e0a2aeca92a4078fe1b8c76e32c88ff1929737 of the
https://bitbucket.org/facebook/hg-experimental repository.
A list of modifications made as part of vendoring is as follows:
* "EXPERIMENTAL" added to module docstring
* Imports were changed to match Mercurial style conventions
* "testedwith" value was updated to core Mercurial special value and
comment boilerplate was inserted
* A "clone_sparse" function was renamed to "clonesparse" to appease
the style checker
* Paths to the sparse extension in tests reflect built-in location
* test-sparse-extensions.t was renamed to test-sparse-fsmonitor.t
and references to "simplecache" were removed. The test always skips
because it isn't trivial to run it given the way we currently run
fsmonitor tests
* A double empty line was removed from test-sparse-profiles.t
There are aspects of the added code that are obviously not ideal.
The goal is to make a minimal number of modifications as part of
the vendoring to make it easier to track changes from the original
implementation. Refactoring will occur in subsequent patches.
| author | Gregory Szorc <gregory.szorc@gmail.com> |
|---|---|
| date | Sat, 01 Jul 2017 10:43:29 -0700 |
| parents | c953e26f3734 |
| children | eb586ed5d8ce |
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$ 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 -a -r tip test-bundle-branch1.hg test-3 abort: --all 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 2 --all test-bundle-all-2.hg ignoring --base because --all was specified 9 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 ..