Mercurial > hg
view tests/test-url-rev.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 | 4431add9aef9 |
children | eb586ed5d8ce |
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Test basic functionality of url#rev syntax $ hg init repo $ cd repo $ echo a > a $ hg ci -qAm 'add a' $ hg branch foo marked working directory as branch foo (branches are permanent and global, did you want a bookmark?) $ echo >> a $ hg ci -m 'change a' $ cd .. $ hg clone 'repo#foo' clone adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 1 files updating to branch foo 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg --cwd clone heads changeset: 1:cd2a86ecc814 branch: foo tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: change a changeset: 0:1f0dee641bb7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add a $ hg --cwd clone parents changeset: 1:cd2a86ecc814 branch: foo tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: change a $ cat clone/.hg/hgrc # example repository config (see 'hg help config' for more info) [paths] default = $TESTTMP/repo#foo (glob) # path aliases to other clones of this repo in URLs or filesystem paths # (see 'hg help config.paths' for more info) # # default:pushurl = ssh://jdoe@example.net/hg/jdoes-fork # my-fork = ssh://jdoe@example.net/hg/jdoes-fork # my-clone = /home/jdoe/jdoes-clone [ui] # name and email (local to this repository, optional), e.g. # username = Jane Doe <jdoe@example.com> Changing original repo: $ cd repo $ echo >> a $ hg ci -m 'new head of branch foo' $ hg up -qC default $ echo bar > bar $ hg ci -qAm 'add bar' $ hg log changeset: 3:4cd725637392 tag: tip parent: 0:1f0dee641bb7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add bar changeset: 2:faba9097cad4 branch: foo user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: new head of branch foo changeset: 1:cd2a86ecc814 branch: foo user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: change a changeset: 0:1f0dee641bb7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add a $ hg -q outgoing '../clone' 2:faba9097cad4 3:4cd725637392 $ hg summary --remote --config paths.default='../clone' parent: 3:4cd725637392 tip add bar branch: default commit: (clean) update: (current) phases: 4 draft remote: 2 outgoing $ hg -q outgoing '../clone#foo' 2:faba9097cad4 $ hg summary --remote --config paths.default='../clone#foo' parent: 3:4cd725637392 tip add bar branch: default commit: (clean) update: (current) phases: 4 draft remote: 1 outgoing $ hg -q --cwd ../clone incoming '../repo#foo' 2:faba9097cad4 $ hg --cwd ../clone summary --remote --config paths.default='../repo#foo' parent: 1:cd2a86ecc814 tip change a branch: foo commit: (clean) update: (current) remote: 1 or more incoming $ hg -q push '../clone#foo' $ hg --cwd ../clone heads changeset: 2:faba9097cad4 branch: foo tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: new head of branch foo changeset: 0:1f0dee641bb7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add a $ hg -q --cwd ../clone incoming '../repo#foo' [1] $ hg --cwd ../clone summary --remote --config paths.default='../repo#foo' parent: 1:cd2a86ecc814 change a branch: foo commit: (clean) update: 1 new changesets (update) remote: (synced) $ cd .. $ cd clone $ hg rollback repository tip rolled back to revision 1 (undo push) $ hg -q incoming 2:faba9097cad4 $ hg -q pull $ hg heads changeset: 2:faba9097cad4 branch: foo tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: new head of branch foo changeset: 0:1f0dee641bb7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add a Pull should not have updated: $ hg parents -q 1:cd2a86ecc814 Going back to the default branch: $ hg up -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg parents changeset: 0:1f0dee641bb7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add a No new revs, no update: $ hg pull -qu $ hg parents -q 0:1f0dee641bb7 $ hg rollback repository tip rolled back to revision 1 (undo pull) $ hg parents -q 0:1f0dee641bb7 Pull -u takes us back to branch foo: $ hg pull -qu $ hg parents changeset: 2:faba9097cad4 branch: foo tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: new head of branch foo $ hg rollback repository tip rolled back to revision 1 (undo pull) working directory now based on revision 0 $ hg up -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg parents -q 0:1f0dee641bb7 $ hg heads -q 1:cd2a86ecc814 0:1f0dee641bb7 $ hg pull -qur default default $ hg parents changeset: 3:4cd725637392 tag: tip parent: 0:1f0dee641bb7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add bar $ hg heads changeset: 3:4cd725637392 tag: tip parent: 0:1f0dee641bb7 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add bar changeset: 2:faba9097cad4 branch: foo user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: new head of branch foo Test handling of invalid urls $ hg id http://foo/?bar abort: unsupported URL component: "bar" [255] $ cd .. Test handling common incoming revisions between "default" and "default-push" $ hg -R clone rollback repository tip rolled back to revision 1 (undo pull) working directory now based on revision 0 $ cd repo $ hg update -q -C default $ echo modified >> bar $ hg commit -m "new head to push current default head" $ hg -q push -r ".^1" '../clone' $ hg -q outgoing '../clone' 2:faba9097cad4 4:d515801a8f3d $ hg summary --remote --config paths.default='../clone#default' --config paths.default-push='../clone#foo' parent: 4:d515801a8f3d tip new head to push current default head branch: default commit: (clean) update: (current) phases: 1 draft remote: 1 outgoing $ hg summary --remote --config paths.default='../clone#foo' --config paths.default-push='../clone' parent: 4:d515801a8f3d tip new head to push current default head branch: default commit: (clean) update: (current) phases: 1 draft remote: 2 outgoing $ hg summary --remote --config paths.default='../clone' --config paths.default-push='../clone#foo' parent: 4:d515801a8f3d tip new head to push current default head branch: default commit: (clean) update: (current) phases: 1 draft remote: 1 outgoing $ hg clone -q -r 0 . ../another $ hg -q outgoing '../another#default' 3:4cd725637392 4:d515801a8f3d $ hg summary --remote --config paths.default='../another#default' --config paths.default-push='../clone#default' parent: 4:d515801a8f3d tip new head to push current default head branch: default commit: (clean) update: (current) phases: 1 draft remote: 1 outgoing $ cd .. Test url#rev syntax of local destination path, which should be taken as a 'url#rev' path $ hg clone repo '#foo' updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg root -R '#foo' $TESTTMP/#foo (glob)