Mercurial > hg
view tests/test-init.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 | b11495c2a7e2 |
children | fe0667cc521e |
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This test tries to exercise the ssh functionality with a dummy script (enable general delta early) $ cat << EOF >> $HGRCPATH > [format] > usegeneraldelta=yes > EOF $ checknewrepo() > { > name=$1 > if [ -d "$name"/.hg/store ]; then > echo store created > fi > if [ -f "$name"/.hg/00changelog.i ]; then > echo 00changelog.i created > fi > cat "$name"/.hg/requires > } creating 'local' $ hg init local $ checknewrepo local store created 00changelog.i created dotencode fncache generaldelta revlogv1 store $ echo this > local/foo $ hg ci --cwd local -A -m "init" adding foo test custom revlog chunk cache sizes $ hg --config format.chunkcachesize=0 log -R local -pv abort: revlog chunk cache size 0 is not greater than 0! [255] $ hg --config format.chunkcachesize=1023 log -R local -pv abort: revlog chunk cache size 1023 is not a power of 2! [255] $ hg --config format.chunkcachesize=1024 log -R local -pv changeset: 0:08b9e9f63b32 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 files: foo description: init diff -r 000000000000 -r 08b9e9f63b32 foo --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/foo Thu Jan 01 00:00:00 1970 +0000 @@ -0,0 +1,1 @@ +this creating repo with format.usestore=false $ hg --config format.usestore=false init old $ checknewrepo old generaldelta revlogv1 creating repo with format.usefncache=false $ hg --config format.usefncache=false init old2 $ checknewrepo old2 store created 00changelog.i created generaldelta revlogv1 store creating repo with format.dotencode=false $ hg --config format.dotencode=false init old3 $ checknewrepo old3 store created 00changelog.i created fncache generaldelta revlogv1 store creating repo with format.dotencode=false $ hg --config format.generaldelta=false --config format.usegeneraldelta=false init old4 $ checknewrepo old4 store created 00changelog.i created dotencode fncache revlogv1 store test failure $ hg init local abort: repository local already exists! [255] init+push to remote2 $ hg init -e "python \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote2 $ hg incoming -R remote2 local comparing with local changeset: 0:08b9e9f63b32 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: init $ hg push -R local -e "python \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote2 pushing to ssh://user@dummy/remote2 searching for changes remote: adding changesets remote: adding manifests remote: adding file changes remote: added 1 changesets with 1 changes to 1 files clone to remote1 $ hg clone -e "python \"$TESTDIR/dummyssh\"" local ssh://user@dummy/remote1 searching for changes remote: adding changesets remote: adding manifests remote: adding file changes remote: added 1 changesets with 1 changes to 1 files The largefiles extension doesn't crash $ hg clone -e "python \"$TESTDIR/dummyssh\"" local ssh://user@dummy/remotelf --config extensions.largefiles= searching for changes remote: adding changesets remote: adding manifests remote: adding file changes remote: added 1 changesets with 1 changes to 1 files init to existing repo $ hg init -e "python \"$TESTDIR/dummyssh\"" ssh://user@dummy/remote1 abort: repository remote1 already exists! abort: could not create remote repo! [255] clone to existing repo $ hg clone -e "python \"$TESTDIR/dummyssh\"" local ssh://user@dummy/remote1 abort: repository remote1 already exists! abort: could not create remote repo! [255] output of dummyssh $ cat dummylog Got arguments 1:user@dummy 2:hg init remote2 Got arguments 1:user@dummy 2:hg -R remote2 serve --stdio Got arguments 1:user@dummy 2:hg -R remote2 serve --stdio Got arguments 1:user@dummy 2:hg init remote1 Got arguments 1:user@dummy 2:hg -R remote1 serve --stdio Got arguments 1:user@dummy 2:hg init remotelf Got arguments 1:user@dummy 2:hg -R remotelf serve --stdio Got arguments 1:user@dummy 2:hg init remote1 Got arguments 1:user@dummy 2:hg init remote1 comparing repositories $ hg tip -q -R local 0:08b9e9f63b32 $ hg tip -q -R remote1 0:08b9e9f63b32 $ hg tip -q -R remote2 0:08b9e9f63b32 check names for repositories (clashes with URL schemes, special chars) $ for i in bundle file hg http https old-http ssh static-http "with space"; do > printf "hg init \"$i\"... " > hg init "$i" > test -d "$i" -a -d "$i/.hg" && echo "ok" || echo "failed" > done hg init "bundle"... ok hg init "file"... ok hg init "hg"... ok hg init "http"... ok hg init "https"... ok hg init "old-http"... ok hg init "ssh"... ok hg init "static-http"... ok hg init "with space"... ok #if eol-in-paths /* " " is not a valid name for a directory on Windows */ $ hg init " " $ test -d " " $ test -d " /.hg" #endif creating 'local/sub/repo' $ hg init local/sub/repo $ checknewrepo local/sub/repo store created 00changelog.i created dotencode fncache generaldelta revlogv1 store prepare test of init of url configured from paths $ echo '[paths]' >> $HGRCPATH $ echo "somewhere = `pwd`/url from paths" >> $HGRCPATH $ echo "elsewhere = `pwd`/another paths url" >> $HGRCPATH init should (for consistency with clone) expand the url $ hg init somewhere $ checknewrepo "url from paths" store created 00changelog.i created dotencode fncache generaldelta revlogv1 store verify that clone also expand urls $ hg clone somewhere elsewhere updating to branch default 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ checknewrepo "another paths url" store created 00changelog.i created dotencode fncache generaldelta revlogv1 store clone bookmarks $ hg -R local bookmark test $ hg -R local bookmarks * test 0:08b9e9f63b32 $ hg clone -e "python \"$TESTDIR/dummyssh\"" local ssh://user@dummy/remote-bookmarks searching for changes remote: adding changesets remote: adding manifests remote: adding file changes remote: added 1 changesets with 1 changes to 1 files exporting bookmark test $ hg -R remote-bookmarks bookmarks test 0:08b9e9f63b32