Mercurial > hg
view tests/test-walk.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 | 70e822796ac8 |
children | 88358446da16 |
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$ hg init t $ cd t $ mkdir -p beans $ for b in kidney navy turtle borlotti black pinto; do > echo $b > beans/$b > done $ mkdir -p mammals/Procyonidae $ for m in cacomistle coatimundi raccoon; do > echo $m > mammals/Procyonidae/$m > done $ echo skunk > mammals/skunk $ echo fennel > fennel $ echo fenugreek > fenugreek $ echo fiddlehead > fiddlehead $ hg addremove adding beans/black adding beans/borlotti adding beans/kidney adding beans/navy adding beans/pinto adding beans/turtle adding fennel adding fenugreek adding fiddlehead adding mammals/Procyonidae/cacomistle adding mammals/Procyonidae/coatimundi adding mammals/Procyonidae/raccoon adding mammals/skunk $ hg commit -m "commit #0" $ hg debugwalk f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle f fennel fennel f fenugreek fenugreek f fiddlehead fiddlehead f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ hg debugwalk -I. f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle f fennel fennel f fenugreek fenugreek f fiddlehead fiddlehead f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ cd mammals $ hg debugwalk f beans/black ../beans/black f beans/borlotti ../beans/borlotti f beans/kidney ../beans/kidney f beans/navy ../beans/navy f beans/pinto ../beans/pinto f beans/turtle ../beans/turtle f fennel ../fennel f fenugreek ../fenugreek f fiddlehead ../fiddlehead f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk -X ../beans f fennel ../fennel f fenugreek ../fenugreek f fiddlehead ../fiddlehead f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk -I '*k' f mammals/skunk skunk $ hg debugwalk -I 'glob:*k' f mammals/skunk skunk $ hg debugwalk -I 'relglob:*k' f beans/black ../beans/black f fenugreek ../fenugreek f mammals/skunk skunk $ hg debugwalk -I 'relglob:*k' . f mammals/skunk skunk $ hg debugwalk -I 're:.*k$' f beans/black ../beans/black f fenugreek ../fenugreek f mammals/skunk skunk $ hg debugwalk -I 'relre:.*k$' f beans/black ../beans/black f fenugreek ../fenugreek f mammals/skunk skunk $ hg debugwalk -I 'path:beans' f beans/black ../beans/black f beans/borlotti ../beans/borlotti f beans/kidney ../beans/kidney f beans/navy ../beans/navy f beans/pinto ../beans/pinto f beans/turtle ../beans/turtle $ hg debugwalk -I 'relpath:detour/../../beans' f beans/black ../beans/black f beans/borlotti ../beans/borlotti f beans/kidney ../beans/kidney f beans/navy ../beans/navy f beans/pinto ../beans/pinto f beans/turtle ../beans/turtle $ hg debugwalk . f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk -I. f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk Procyonidae f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon $ cd Procyonidae $ hg debugwalk . f mammals/Procyonidae/cacomistle cacomistle f mammals/Procyonidae/coatimundi coatimundi f mammals/Procyonidae/raccoon raccoon $ hg debugwalk .. f mammals/Procyonidae/cacomistle cacomistle f mammals/Procyonidae/coatimundi coatimundi f mammals/Procyonidae/raccoon raccoon f mammals/skunk ../skunk $ cd .. $ hg debugwalk ../beans f beans/black ../beans/black f beans/borlotti ../beans/borlotti f beans/kidney ../beans/kidney f beans/navy ../beans/navy f beans/pinto ../beans/pinto f beans/turtle ../beans/turtle $ hg debugwalk . f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk .hg abort: path 'mammals/.hg' is inside nested repo 'mammals' (glob) [255] $ hg debugwalk ../.hg abort: path contains illegal component: .hg [255] $ cd .. $ hg debugwalk -Ibeans f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk -I '{*,{b,m}*/*}k' f beans/black beans/black f fenugreek fenugreek f mammals/skunk mammals/skunk $ hg debugwalk -Ibeans mammals $ hg debugwalk -Inon-existent $ hg debugwalk -Inon-existent -Ibeans/black f beans/black beans/black $ hg debugwalk -Ibeans beans/black f beans/black beans/black exact $ hg debugwalk -Ibeans/black beans f beans/black beans/black $ hg debugwalk -Xbeans/black beans f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk -Xbeans/black -Ibeans f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk -Xbeans/black beans/black f beans/black beans/black exact $ hg debugwalk -Xbeans/black -Ibeans/black $ hg debugwalk -Xbeans beans/black f beans/black beans/black exact $ hg debugwalk -Xbeans -Ibeans/black $ hg debugwalk 'glob:mammals/../beans/b*' f beans/black beans/black f beans/borlotti beans/borlotti $ hg debugwalk '-X*/Procyonidae' mammals f mammals/skunk mammals/skunk $ hg debugwalk path:mammals f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ hg debugwalk .. abort: .. not under root '$TESTTMP/t' (glob) [255] $ hg debugwalk beans/../.. abort: beans/../.. not under root '$TESTTMP/t' (glob) [255] $ hg debugwalk .hg abort: path contains illegal component: .hg [255] $ hg debugwalk beans/../.hg abort: path contains illegal component: .hg [255] $ hg debugwalk beans/../.hg/data abort: path contains illegal component: .hg/data (glob) [255] $ hg debugwalk beans/.hg abort: path 'beans/.hg' is inside nested repo 'beans' (glob) [255] Test absolute paths: $ hg debugwalk `pwd`/beans f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk `pwd`/.. abort: $TESTTMP/t/.. not under root '$TESTTMP/t' (glob) [255] Test patterns: $ hg debugwalk glob:\* f fennel fennel f fenugreek fenugreek f fiddlehead fiddlehead #if eol-in-paths $ echo glob:glob > glob:glob $ hg addremove adding glob:glob warning: filename contains ':', which is reserved on Windows: 'glob:glob' $ hg debugwalk glob:\* f fennel fennel f fenugreek fenugreek f fiddlehead fiddlehead f glob:glob glob:glob $ hg debugwalk glob:glob glob: No such file or directory $ hg debugwalk glob:glob:glob f glob:glob glob:glob exact $ hg debugwalk path:glob:glob f glob:glob glob:glob exact $ rm glob:glob $ hg addremove removing glob:glob #endif $ hg debugwalk 'glob:**e' f beans/turtle beans/turtle f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle $ hg debugwalk 're:.*[kb]$' f beans/black beans/black f fenugreek fenugreek f mammals/skunk mammals/skunk $ hg debugwalk path:beans/black f beans/black beans/black exact $ hg debugwalk path:beans//black f beans/black beans/black exact $ hg debugwalk relglob:Procyonidae $ hg debugwalk 'relglob:Procyonidae/**' f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon $ hg debugwalk 'relglob:Procyonidae/**' fennel f fennel fennel exact f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon $ hg debugwalk beans 'glob:beans/*' f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk 'glob:mamm**' f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ hg debugwalk 'glob:mamm**' fennel f fennel fennel exact f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ hg debugwalk 'glob:j*' $ hg debugwalk NOEXIST NOEXIST: * (glob) #if fifo $ mkfifo fifo $ hg debugwalk fifo fifo: unsupported file type (type is fifo) #endif $ rm fenugreek $ hg debugwalk fenugreek f fenugreek fenugreek exact $ hg rm fenugreek $ hg debugwalk fenugreek f fenugreek fenugreek exact $ touch new $ hg debugwalk new f new new exact $ mkdir ignored $ touch ignored/file $ echo '^ignored$' > .hgignore $ hg debugwalk ignored $ hg debugwalk ignored/file f ignored/file ignored/file exact Test listfile and listfile0 $ $PYTHON -c "file('listfile0', 'wb').write('fenugreek\0new\0')" $ hg debugwalk -I 'listfile0:listfile0' f fenugreek fenugreek f new new $ $PYTHON -c "file('listfile', 'wb').write('fenugreek\nnew\r\nmammals/skunk\n')" $ hg debugwalk -I 'listfile:listfile' f fenugreek fenugreek f mammals/skunk mammals/skunk f new new $ cd .. $ hg debugwalk -R t t/mammals/skunk f mammals/skunk t/mammals/skunk exact $ mkdir t2 $ cd t2 $ hg debugwalk -R ../t ../t/mammals/skunk f mammals/skunk ../t/mammals/skunk exact $ hg debugwalk --cwd ../t mammals/skunk f mammals/skunk mammals/skunk exact $ cd .. Test split patterns on overflow $ cd t $ echo fennel > overflow.list $ $PYTHON -c "for i in xrange(20000 / 100): print 'x' * 100" >> overflow.list $ echo fenugreek >> overflow.list $ hg debugwalk 'listfile:overflow.list' 2>&1 | grep -v '^xxx' f fennel fennel exact f fenugreek fenugreek exact $ cd ..