Mercurial > hg
view tests/test-patchbomb-bookmark.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 | c2fe2b00db53 |
children | 2d0c306a88c2 |
line wrap: on
line source
Create @ bookmark as main reference $ hg init repo $ cd repo $ echo "[extensions]" >> $HGRCPATH $ echo "patchbomb=" >> $HGRCPATH $ hg book @ Create a dummy revision that must never be exported $ echo no > no $ hg ci -Amno -d '6 0' adding no Create a feature and use -B $ hg book booktest $ echo first > a $ hg ci -Amfirst -d '7 0' adding a $ echo second > b $ hg ci -Amsecond -d '8 0' adding b $ hg email --date '1981-1-1 0:1' -n -t foo -s bookmark -B booktest From [test]: test this patch series consists of 2 patches. Write the introductory message for the patch series. Cc: displaying [PATCH 0 of 2] bookmark ... Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH 0 of 2] bookmark Message-Id: <patchbomb.347155260@*> (glob) User-Agent: Mercurial-patchbomb/* (glob) Date: Thu, 01 Jan 1981 00:01:00 +0000 From: test To: foo displaying [PATCH 1 of 2] first ... Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH 1 of 2] first X-Mercurial-Node: accde9b8b6dce861c185d0825c1affc09a79cb26 X-Mercurial-Series-Index: 1 X-Mercurial-Series-Total: 2 Message-Id: <accde9b8b6dce861c185.347155261@*> (glob) X-Mercurial-Series-Id: <accde9b8b6dce861c185.347155261@*> (glob) In-Reply-To: <patchbomb.347155260@*> (glob) References: <patchbomb.347155260@*> (glob) User-Agent: Mercurial-patchbomb/* (glob) Date: Thu, 01 Jan 1981 00:01:01 +0000 From: test To: foo # HG changeset patch # User test # Date 7 0 # Thu Jan 01 00:00:07 1970 +0000 # Node ID accde9b8b6dce861c185d0825c1affc09a79cb26 # Parent 043bd3889e5aaf7d88fe3713cf425f782ad2fb71 first diff -r 043bd3889e5a -r accde9b8b6dc a --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/a Thu Jan 01 00:00:07 1970 +0000 @@ -0,0 +1,1 @@ +first displaying [PATCH 2 of 2] second ... Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH 2 of 2] second X-Mercurial-Node: 417defd1559c396ba06a44dce8dc1c2d2d653f3f X-Mercurial-Series-Index: 2 X-Mercurial-Series-Total: 2 Message-Id: <417defd1559c396ba06a.347155262@*> (glob) X-Mercurial-Series-Id: <accde9b8b6dce861c185.347155261@*> (glob) In-Reply-To: <patchbomb.347155260@*> (glob) References: <patchbomb.347155260@*> (glob) User-Agent: Mercurial-patchbomb/* (glob) Date: Thu, 01 Jan 1981 00:01:02 +0000 From: test To: foo # HG changeset patch # User test # Date 8 0 # Thu Jan 01 00:00:08 1970 +0000 # Node ID 417defd1559c396ba06a44dce8dc1c2d2d653f3f # Parent accde9b8b6dce861c185d0825c1affc09a79cb26 second diff -r accde9b8b6dc -r 417defd1559c b --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/b Thu Jan 01 00:00:08 1970 +0000 @@ -0,0 +1,1 @@ +second Do the same and combine with -o only one must be exported $ cd .. $ hg clone repo repo2 updating to bookmark @ 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd repo $ hg up @ 0 files updated, 0 files merged, 2 files removed, 0 files unresolved (activating bookmark @) $ hg book outgoing $ echo 1 > x $ hg ci -Am1 -d '8 0' adding x created new head $ hg push ../repo2 -B outgoing pushing to ../repo2 searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) exporting bookmark outgoing $ echo 2 > y $ hg ci -Am2 -d '9 0' adding y $ hg email --date '1982-1-1 0:1' -n -t foo -s bookmark -B outgoing -o ../repo2 comparing with ../repo2 From [test]: test this patch series consists of 1 patches. Cc: displaying [PATCH] bookmark ... Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH] bookmark X-Mercurial-Node: 8dab2639fd35f1e337ad866c372a5c44f1064e3c X-Mercurial-Series-Index: 1 X-Mercurial-Series-Total: 1 Message-Id: <8dab2639fd35f1e337ad.378691260@*> (glob) X-Mercurial-Series-Id: <8dab2639fd35f1e337ad.378691260@*> (glob) User-Agent: Mercurial-patchbomb/* (glob) Date: Fri, 01 Jan 1982 00:01:00 +0000 From: test To: foo # HG changeset patch # User test # Date 9 0 # Thu Jan 01 00:00:09 1970 +0000 # Node ID 8dab2639fd35f1e337ad866c372a5c44f1064e3c # Parent 0b24b8316483bf30bfc3e4d4168e922b169dbe66 2 diff -r 0b24b8316483 -r 8dab2639fd35 y --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/y Thu Jan 01 00:00:09 1970 +0000 @@ -0,0 +1,1 @@ +2