Mercurial > hg
view tests/test-incoming-outgoing.t @ 30435:b86a448a2965
zstd: vendor python-zstandard 0.5.0
As the commit message for the previous changeset says, we wish
for zstd to be a 1st class citizen in Mercurial. To make that
happen, we need to enable Python to talk to the zstd C API. And
that requires bindings.
This commit vendors a copy of existing Python bindings. Why do we
need to vendor? As the commit message of the previous commit says,
relying on systems in the wild to have the bindings or zstd present
is a losing proposition. By distributing the zstd and bindings with
Mercurial, we significantly increase our chances that zstd will
work. Since zstd will deliver a better end-user experience by
achieving better performance, this benefits our users. Another
reason is that the Python bindings still aren't stable and the
API is somewhat fluid. While Mercurial could be coded to target
multiple versions of the Python bindings, it is safer to bundle
an explicit, known working version.
The added Python bindings are mostly a fully-featured interface
to the zstd C API. They allow one-shot operations, streaming,
reading and writing from objects implements the file object
protocol, dictionary compression, control over low-level compression
parameters, and more. The Python bindings work on Python 2.6,
2.7, and 3.3+ and have been tested on Linux and Windows. There are
CFFI bindings, but they are lacking compared to the C extension.
Upstream work will be needed before we can support zstd with PyPy.
But it will be possible.
The files added in this commit come from Git commit
e637c1b214d5f869cf8116c550dcae23ec13b677 from
https://github.com/indygreg/python-zstandard and are added without
modifications. Some files from the upstream repository have been
omitted, namely files related to continuous integration.
In the spirit of full disclosure, I'm the maintainer of the
"python-zstandard" project and have authored 100% of the code
added in this commit. Unfortunately, the Python bindings have
not been formally code reviewed by anyone. While I've tested
much of the code thoroughly (I even have tests that fuzz APIs),
there's a good chance there are bugs, memory leaks, not well
thought out APIs, etc. If someone wants to review the code and
send feedback to the GitHub project, it would be greatly
appreciated.
Despite my involvement with both projects, my opinions of code
style differ from Mercurial's. The code in this commit introduces
numerous code style violations in Mercurial's linters. So, the code
is excluded from most lints. However, some violations I agree with.
These have been added to the known violations ignore list for now.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 10 Nov 2016 22:15:58 -0800 |
parents | 7a9cbb315d84 |
children | eb586ed5d8ce |
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#require serve $ hg init test $ cd test $ for i in 0 1 2 3 4 5 6 7 8; do > echo $i >> foo > hg commit -A -m $i > done adding foo $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 9 changesets, 9 total revisions $ hg serve -p $HGPORT -d --pid-file=hg.pid $ cat hg.pid >> $DAEMON_PIDS $ cd .. $ hg init new http incoming $ hg -R new incoming http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 changeset: 5:ad284ee3b5ee user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 5 changeset: 6:e9229f2de384 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 6 changeset: 7:d152815bb8db user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 7 changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ hg -R new incoming -r 4 http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 local incoming $ hg -R new incoming test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 changeset: 5:ad284ee3b5ee user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 5 changeset: 6:e9229f2de384 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 6 changeset: 7:d152815bb8db user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 7 changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ hg -R new incoming -r 4 test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 limit to 2 changesets $ hg -R new incoming -l 2 test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 limit to 2 changesets, test with -p --git $ hg -R new incoming -l 2 -p --git test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 diff --git a/foo b/foo new file mode 100644 --- /dev/null +++ b/foo @@ -0,0 +1,1 @@ +0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 diff --git a/foo b/foo --- a/foo +++ b/foo @@ -1,1 +1,2 @@ 0 +1 test with --bundle $ hg -R new incoming --bundle test.hg http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 changeset: 5:ad284ee3b5ee user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 5 changeset: 6:e9229f2de384 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 6 changeset: 7:d152815bb8db user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 7 changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ hg -R new incoming --bundle test2.hg test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 changeset: 5:ad284ee3b5ee user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 5 changeset: 6:e9229f2de384 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 6 changeset: 7:d152815bb8db user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 7 changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 test the resulting bundles $ hg init temp $ hg init temp2 $ hg -R temp unbundle test.hg adding changesets adding manifests adding file changes added 9 changesets with 9 changes to 1 files (run 'hg update' to get a working copy) $ hg -R temp2 unbundle test2.hg adding changesets adding manifests adding file changes added 9 changesets with 9 changes to 1 files (run 'hg update' to get a working copy) $ hg -R temp tip changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ hg -R temp2 tip changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ rm -r temp temp2 new test outgoing $ hg clone test test-dev updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd test-dev $ for i in 9 10 11 12 13; do > echo $i >> foo > hg commit -A -m $i > done $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 14 changesets, 14 total revisions $ cd .. $ hg -R test-dev outgoing test comparing with test searching for changes changeset: 9:d89d4abea5bc user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 9 changeset: 10:820095aa7158 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 10 changeset: 11:09ede2f3a638 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 11 changeset: 12:e576b1bed305 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 12 changeset: 13:96bbff09a7cc tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 13 test outgoing with secret changesets $ hg -R test-dev phase --force --secret 9 $ hg -R test-dev outgoing test comparing with test searching for changes no changes found (ignored 5 secret changesets) [1] $ hg -R test-dev phase --draft -r 'head()' limit to 3 changesets $ hg -R test-dev outgoing -l 3 test comparing with test searching for changes changeset: 9:d89d4abea5bc user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 9 changeset: 10:820095aa7158 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 10 changeset: 11:09ede2f3a638 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 11 $ hg -R test-dev outgoing http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ searching for changes changeset: 9:d89d4abea5bc user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 9 changeset: 10:820095aa7158 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 10 changeset: 11:09ede2f3a638 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 11 changeset: 12:e576b1bed305 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 12 changeset: 13:96bbff09a7cc tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 13 $ hg -R test-dev outgoing -r 11 http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ searching for changes changeset: 9:d89d4abea5bc user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 9 changeset: 10:820095aa7158 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 10 changeset: 11:09ede2f3a638 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 11 incoming from empty remote repository $ hg init r1 $ hg init r2 $ echo a > r1/foo $ hg -R r1 ci -Ama adding foo $ hg -R r1 incoming r2 --bundle x.hg comparing with r2 searching for changes no changes found [1]