Mercurial > hg
view tests/test-globalopts.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 | cd7276f7ea83 |
children | 66cffa87d2f2 |
line wrap: on
line source
$ hg init a $ cd a $ echo a > a $ hg ci -A -d'1 0' -m a adding a $ cd .. $ hg init b $ cd b $ echo b > b $ hg ci -A -d'1 0' -m b adding b $ cd .. $ hg clone a c updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd c $ cat >> .hg/hgrc <<EOF > [paths] > relative = ../a > EOF $ hg pull -f ../b pulling from ../b searching for changes warning: repository is unrelated requesting all changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg merge 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ cd .. Testing -R/--repository: $ hg -R a tip changeset: 0:8580ff50825a tag: tip user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: a $ hg --repository b tip changeset: 0:b6c483daf290 tag: tip user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: b -R with a URL: $ hg -R file:a identify 8580ff50825a tip $ hg -R file://localhost/`pwd`/a/ identify 8580ff50825a tip -R with path aliases: $ cd c $ hg -R default identify 8580ff50825a tip $ hg -R relative identify 8580ff50825a tip $ echo '[paths]' >> $HGRCPATH $ echo 'relativetohome = a' >> $HGRCPATH $ HOME=`pwd`/../ hg -R relativetohome identify 8580ff50825a tip $ cd .. #if no-outer-repo Implicit -R: $ hg ann a/a 0: a $ hg ann a/a a/a 0: a $ hg ann a/a b/b abort: no repository found in '$TESTTMP' (.hg not found)! [255] $ hg -R b ann a/a abort: a/a not under root '$TESTTMP/b' (glob) (consider using '--cwd b') [255] $ hg log abort: no repository found in '$TESTTMP' (.hg not found)! [255] #endif Abbreviation of long option: $ hg --repo c tip changeset: 1:b6c483daf290 tag: tip parent: -1:000000000000 user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: b earlygetopt with duplicate options (36d23de02da1): $ hg --cwd a --cwd b --cwd c tip changeset: 1:b6c483daf290 tag: tip parent: -1:000000000000 user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: b $ hg --repo c --repository b -R a tip changeset: 0:8580ff50825a tag: tip user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: a earlygetopt short option without following space: $ hg -q -Rb tip 0:b6c483daf290 earlygetopt with illegal abbreviations: $ hg --confi "foo.bar=baz" abort: option --config may not be abbreviated! [255] $ hg --cw a tip abort: option --cwd may not be abbreviated! [255] $ hg --rep a tip abort: option -R has to be separated from other options (e.g. not -qR) and --repository may only be abbreviated as --repo! [255] $ hg --repositor a tip abort: option -R has to be separated from other options (e.g. not -qR) and --repository may only be abbreviated as --repo! [255] $ hg -qR a tip abort: option -R has to be separated from other options (e.g. not -qR) and --repository may only be abbreviated as --repo! [255] $ hg -qRa tip abort: option -R has to be separated from other options (e.g. not -qR) and --repository may only be abbreviated as --repo! [255] Testing --cwd: $ hg --cwd a parents changeset: 0:8580ff50825a tag: tip user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: a Testing -y/--noninteractive - just be sure it is parsed: $ hg --cwd a tip -q --noninteractive 0:8580ff50825a $ hg --cwd a tip -q -y 0:8580ff50825a Testing -q/--quiet: $ hg -R a -q tip 0:8580ff50825a $ hg -R b -q tip 0:b6c483daf290 $ hg -R c --quiet parents 0:8580ff50825a 1:b6c483daf290 Testing -v/--verbose: $ hg --cwd c head -v changeset: 1:b6c483daf290 tag: tip parent: -1:000000000000 user: test date: Thu Jan 01 00:00:01 1970 +0000 files: b description: b changeset: 0:8580ff50825a user: test date: Thu Jan 01 00:00:01 1970 +0000 files: a description: a $ hg --cwd b tip --verbose changeset: 0:b6c483daf290 tag: tip user: test date: Thu Jan 01 00:00:01 1970 +0000 files: b description: b Testing --config: $ hg --cwd c --config paths.quuxfoo=bar paths | grep quuxfoo > /dev/null && echo quuxfoo quuxfoo $ hg --cwd c --config '' tip -q abort: malformed --config option: '' (use --config section.name=value) [255] $ hg --cwd c --config a.b tip -q abort: malformed --config option: 'a.b' (use --config section.name=value) [255] $ hg --cwd c --config a tip -q abort: malformed --config option: 'a' (use --config section.name=value) [255] $ hg --cwd c --config a.= tip -q abort: malformed --config option: 'a.=' (use --config section.name=value) [255] $ hg --cwd c --config .b= tip -q abort: malformed --config option: '.b=' (use --config section.name=value) [255] Testing --debug: $ hg --cwd c log --debug changeset: 1:b6c483daf2907ce5825c0bb50f5716226281cc1a tag: tip phase: public parent: -1:0000000000000000000000000000000000000000 parent: -1:0000000000000000000000000000000000000000 manifest: 1:23226e7a252cacdc2d99e4fbdc3653441056de49 user: test date: Thu Jan 01 00:00:01 1970 +0000 files+: b extra: branch=default description: b changeset: 0:8580ff50825a50c8f716709acdf8de0deddcd6ab phase: public parent: -1:0000000000000000000000000000000000000000 parent: -1:0000000000000000000000000000000000000000 manifest: 0:a0c8bcbbb45c63b90b70ad007bf38961f64f2af0 user: test date: Thu Jan 01 00:00:01 1970 +0000 files+: a extra: branch=default description: a Testing --traceback: $ hg --cwd c --config x --traceback id 2>&1 | grep -i 'traceback' Traceback (most recent call last): Testing --time: $ hg --cwd a --time id 8580ff50825a tip time: real * (glob) Testing --version: $ hg --version -q Mercurial Distributed SCM * (glob) hide outer repo $ hg init Testing -h/--help: $ hg -h Mercurial Distributed SCM list of commands: add add the specified files on the next commit addremove add all new files, delete all missing files annotate show changeset information by line for each file archive create an unversioned archive of a repository revision backout reverse effect of earlier changeset bisect subdivision search of changesets bookmarks create a new bookmark or list existing bookmarks branch set or show the current branch name branches list repository named branches bundle create a changegroup file cat output the current or given revision of files clone make a copy of an existing repository commit commit the specified files or all outstanding changes config show combined config settings from all hgrc files copy mark files as copied for the next commit diff diff repository (or selected files) export dump the header and diffs for one or more changesets files list tracked files forget forget the specified files on the next commit graft copy changes from other branches onto the current branch grep search revision history for a pattern in specified files heads show branch heads help show help for a given topic or a help overview identify identify the working directory or specified revision import import an ordered set of patches incoming show new changesets found in source init create a new repository in the given directory log show revision history of entire repository or files manifest output the current or given revision of the project manifest merge merge another revision into working directory outgoing show changesets not found in the destination paths show aliases for remote repositories phase set or show the current phase name pull pull changes from the specified source push push changes to the specified destination recover roll back an interrupted transaction remove remove the specified files on the next commit rename rename files; equivalent of copy + remove resolve redo merges or set/view the merge status of files revert restore files to their checkout state root print the root (top) of the current working directory serve start stand-alone webserver status show changed files in the working directory summary summarize working directory state tag add one or more tags for the current or given revision tags list repository tags unbundle apply one or more changegroup files update update working directory (or switch revisions) verify verify the integrity of the repository version output version and copyright information additional help topics: config Configuration Files dates Date Formats diffs Diff Formats environment Environment Variables extensions Using Additional Features filesets Specifying File Sets glossary Glossary hgignore Syntax for Mercurial Ignore Files hgweb Configuring hgweb internals Technical implementation topics merge-tools Merge Tools multirevs Specifying Multiple Revisions patterns File Name Patterns phases Working with Phases revisions Specifying Single Revisions revsets Specifying Revision Sets scripting Using Mercurial from scripts and automation subrepos Subrepositories templating Template Usage urls URL Paths (use 'hg help -v' to show built-in aliases and global options) $ hg --help Mercurial Distributed SCM list of commands: add add the specified files on the next commit addremove add all new files, delete all missing files annotate show changeset information by line for each file archive create an unversioned archive of a repository revision backout reverse effect of earlier changeset bisect subdivision search of changesets bookmarks create a new bookmark or list existing bookmarks branch set or show the current branch name branches list repository named branches bundle create a changegroup file cat output the current or given revision of files clone make a copy of an existing repository commit commit the specified files or all outstanding changes config show combined config settings from all hgrc files copy mark files as copied for the next commit diff diff repository (or selected files) export dump the header and diffs for one or more changesets files list tracked files forget forget the specified files on the next commit graft copy changes from other branches onto the current branch grep search revision history for a pattern in specified files heads show branch heads help show help for a given topic or a help overview identify identify the working directory or specified revision import import an ordered set of patches incoming show new changesets found in source init create a new repository in the given directory log show revision history of entire repository or files manifest output the current or given revision of the project manifest merge merge another revision into working directory outgoing show changesets not found in the destination paths show aliases for remote repositories phase set or show the current phase name pull pull changes from the specified source push push changes to the specified destination recover roll back an interrupted transaction remove remove the specified files on the next commit rename rename files; equivalent of copy + remove resolve redo merges or set/view the merge status of files revert restore files to their checkout state root print the root (top) of the current working directory serve start stand-alone webserver status show changed files in the working directory summary summarize working directory state tag add one or more tags for the current or given revision tags list repository tags unbundle apply one or more changegroup files update update working directory (or switch revisions) verify verify the integrity of the repository version output version and copyright information additional help topics: config Configuration Files dates Date Formats diffs Diff Formats environment Environment Variables extensions Using Additional Features filesets Specifying File Sets glossary Glossary hgignore Syntax for Mercurial Ignore Files hgweb Configuring hgweb internals Technical implementation topics merge-tools Merge Tools multirevs Specifying Multiple Revisions patterns File Name Patterns phases Working with Phases revisions Specifying Single Revisions revsets Specifying Revision Sets scripting Using Mercurial from scripts and automation subrepos Subrepositories templating Template Usage urls URL Paths (use 'hg help -v' to show built-in aliases and global options) Not tested: --debugger