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view tests/test-mq-qimport.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 | 0342bf292f73 |
children | 448acdee9161 |
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#require killdaemons $ cat > writelines.py <<EOF > import sys > path = sys.argv[1] > args = sys.argv[2:] > assert (len(args) % 2) == 0 > > f = file(path, 'wb') > for i in xrange(len(args)/2): > count, s = args[2*i:2*i+2] > count = int(count) > s = s.decode('string_escape') > f.write(s*count) > f.close() > > EOF > cat <<EOF >> $HGRCPATH > [extensions] > mq = > [diff] > git = 1 > EOF $ hg init repo $ cd repo qimport without file or revision $ hg qimport abort: no files or revisions specified [255] qimport non-existing-file $ hg qimport non-existing-file abort: unable to read file non-existing-file [255] qimport null revision $ hg qimport -r null abort: revision -1 is not mutable (see 'hg help phases' for details) [255] $ hg qseries import email $ hg qimport --push -n email - <<EOF > From: Username in email <test@example.net> > Subject: [PATCH] Message in email > Date: Fri, 02 Jan 1970 00:00:00 +0000 > > Text before patch. > > # HG changeset patch > # User Username in patch <test@example.net> > # Date 0 0 > # Node ID 1a706973a7d84cb549823634a821d9bdf21c6220 > # Parent 0000000000000000000000000000000000000000 > First line of commit message. > > More text in commit message. > --- confuse the diff detection > > diff --git a/x b/x > new file mode 100644 > --- /dev/null > +++ b/x > @@ -0,0 +1,1 @@ > +new file > Text after patch. > > EOF adding email to series file applying email now at: email hg tip -v $ hg tip -v changeset: 0:1a706973a7d8 tag: email tag: qbase tag: qtip tag: tip user: Username in patch <test@example.net> date: Thu Jan 01 00:00:00 1970 +0000 files: x description: First line of commit message. More text in commit message. $ hg qpop popping email patch queue now empty $ hg qdelete email import URL $ echo foo >> foo $ hg add foo $ hg diff > url.diff $ hg revert --no-backup foo $ rm foo Under unix: file:///foobar/blah Under windows: file:///c:/foobar/blah $ patchurl=`pwd | tr '\\\\' /`/url.diff $ expr "$patchurl" : "\/" > /dev/null || patchurl="/$patchurl" $ hg qimport file://"$patchurl" adding url.diff to series file $ rm url.diff $ hg qun url.diff import patch that already exists $ echo foo2 >> foo $ hg add foo $ hg diff > ../url.diff $ hg revert --no-backup foo $ rm foo $ hg qimport ../url.diff abort: patch "url.diff" already exists [255] $ hg qpush applying url.diff now at: url.diff $ cat foo foo $ hg qpop popping url.diff patch queue now empty qimport -f $ hg qimport -f ../url.diff adding url.diff to series file $ hg qpush applying url.diff now at: url.diff $ cat foo foo2 $ hg qpop popping url.diff patch queue now empty build diff with CRLF $ python ../writelines.py b 5 'a\n' 5 'a\r\n' $ hg ci -Am addb adding b $ python ../writelines.py b 2 'a\n' 10 'b\n' 2 'a\r\n' $ hg diff > b.diff $ hg up -C 1 files updated, 0 files merged, 0 files removed, 0 files unresolved qimport CRLF diff $ hg qimport b.diff adding b.diff to series file $ hg qpush applying b.diff now at: b.diff try to import --push $ cat > appendfoo.diff <<EOF > append foo > > diff -r 07f494440405 -r 261500830e46 baz > --- /dev/null Thu Jan 01 00:00:00 1970 +0000 > +++ b/baz Thu Jan 01 00:00:00 1970 +0000 > @@ -0,0 +1,1 @@ > +foo > EOF $ cat > appendbar.diff <<EOF > append bar > > diff -r 07f494440405 -r 261500830e46 baz > --- a/baz Thu Jan 01 00:00:00 1970 +0000 > +++ b/baz Thu Jan 01 00:00:00 1970 +0000 > @@ -1,1 +1,2 @@ > foo > +bar > EOF $ hg qimport --push appendfoo.diff appendbar.diff adding appendfoo.diff to series file adding appendbar.diff to series file applying appendfoo.diff applying appendbar.diff now at: appendbar.diff $ hg qfin -a patch b.diff finalized without changeset message $ touch .hg/patches/append_foo $ hg qimport -r 'p1(.)::' $ hg qapplied append_foo__1 append_bar $ hg qfin -a $ rm .hg/patches/append_foo $ hg qimport -r 'p1(.)::' -P $ hg qpop -a popping append_bar popping append_foo patch queue now empty $ hg qdel append_foo $ hg qdel -k append_bar qimport -e $ hg qimport -e append_bar adding append_bar to series file $ hg qdel -k append_bar qimport -e --name newname oldexisitingpatch $ hg qimport -e --name this-name-is-better append_bar renaming append_bar to this-name-is-better adding this-name-is-better to series file $ hg qser this-name-is-better url.diff qimport -e --name without --force $ cp .hg/patches/this-name-is-better .hg/patches/3.diff $ hg qimport -e --name this-name-is-better 3.diff abort: patch "this-name-is-better" already exists [255] $ hg qser this-name-is-better url.diff qimport -e --name with --force $ hg qimport --force -e --name this-name-is-better 3.diff renaming 3.diff to this-name-is-better adding this-name-is-better to series file $ hg qser this-name-is-better url.diff qimport with bad name, should abort before reading file $ hg qimport non-existent-file --name .hg abort: patch name cannot begin with ".hg" [255] qimport http:// patch with leading slashes in url set up hgweb $ cd .. $ hg init served $ cd served $ echo a > a $ hg ci -Am patch adding a $ hg serve -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log $ cat hg.pid >> $DAEMON_PIDS $ cd ../repo $ hg qimport http://localhost:$HGPORT/raw-rev/0/// adding 0 to series file check qimport phase: $ hg -q qpush now at: 0 $ hg phase qparent 1: draft $ hg qimport -r qparent $ hg phase qbase 1: draft $ hg qfinish qbase $ echo '[mq]' >> $HGRCPATH $ echo 'secret=true' >> $HGRCPATH $ hg qimport -r qparent $ hg phase qbase 1: secret $ cd .. $ killdaemons.py check patch name generation for non-alpha-numeric summary line $ cd repo $ hg qpop -a -q patch queue now empty $ hg qseries -v 0 U imported_patch_b_diff 1 U 0 2 U this-name-is-better 3 U url.diff $ echo bb >> b $ hg commit -m '==++--==' $ hg qimport -r tip $ hg qseries -v 0 A 1.diff 1 U imported_patch_b_diff 2 U 0 3 U this-name-is-better 4 U url.diff check reserved patch names $ hg qpop -qa patch queue now empty $ echo >> b $ hg commit -m 'status' $ echo >> b $ hg commit -m '.' $ echo >> b $ hg commit -m 'taken' $ mkdir .hg/patches/taken $ touch .hg/patches/taken__1 $ hg qimport -r -3:: $ hg qap 1.diff__1 2.diff taken__2 check very long patch name $ hg qpop -qa patch queue now empty $ echo >> b $ hg commit -m 'abcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' $ hg qimport -r . $ hg qap abcdefghi_pqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghi_pqrstuvwxyzabcdefg