Mercurial > hg
view tests/test-subrepo-svn.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 | a145161debed |
children | 6d88468d435b 173ecccb9ee7 |
line wrap: on
line source
#require svn15 $ SVNREPOPATH=`pwd`/svn-repo #if windows $ SVNREPOURL=file:///`$PYTHON -c "import urllib, sys; sys.stdout.write(urllib.quote(sys.argv[1]))" "$SVNREPOPATH"` #else $ SVNREPOURL=file://`$PYTHON -c "import urllib, sys; sys.stdout.write(urllib.quote(sys.argv[1]))" "$SVNREPOPATH"` #endif $ filter_svn_output () { > egrep -v 'Committing|Transmitting|Updating|(^$)' || true > } create subversion repo $ WCROOT="`pwd`/svn-wc" $ svnadmin create svn-repo $ svn co "$SVNREPOURL" svn-wc Checked out revision 0. $ cd svn-wc $ mkdir src $ echo alpha > src/alpha $ svn add src A src A src/alpha (glob) $ mkdir externals $ echo other > externals/other $ svn add externals A externals A externals/other (glob) $ svn ci -qm 'Add alpha' $ svn up -q $ echo "externals -r1 $SVNREPOURL/externals" > extdef $ svn propset -F extdef svn:externals src property 'svn:externals' set on 'src' $ svn ci -qm 'Setting externals' $ cd .. create hg repo $ mkdir sub $ cd sub $ hg init t $ cd t first revision, no sub $ echo a > a $ hg ci -Am0 adding a add first svn sub with leading whitespaces $ echo "s = [svn] $SVNREPOURL/src" >> .hgsub $ echo "subdir/s = [svn] $SVNREPOURL/src" >> .hgsub $ svn co --quiet "$SVNREPOURL"/src s $ mkdir subdir $ svn co --quiet "$SVNREPOURL"/src subdir/s $ hg add .hgsub $ hg ci -m1 make sure we avoid empty commits (issue2445) $ hg sum parent: 1:* tip (glob) 1 branch: default commit: (clean) update: (current) phases: 2 draft $ hg ci -moops nothing changed [1] debugsub $ hg debugsub path s source file://*/svn-repo/src (glob) revision 2 path subdir/s source file://*/svn-repo/src (glob) revision 2 change file in svn and hg, commit $ echo a >> a $ echo alpha >> s/alpha $ hg sum parent: 1:* tip (glob) 1 branch: default commit: 1 modified, 1 subrepos update: (current) phases: 2 draft $ hg commit --subrepos -m 'Message!' | filter_svn_output committing subrepository s Sending*s/alpha (glob) Committed revision 3. Fetching external item into '*s/externals'* (glob) External at revision 1. At revision 3. $ hg debugsub path s source file://*/svn-repo/src (glob) revision 3 path subdir/s source file://*/svn-repo/src (glob) revision 2 missing svn file, commit should fail $ rm s/alpha $ hg commit --subrepos -m 'abort on missing file' committing subrepository s abort: cannot commit missing svn entries (in subrepo s) [255] $ svn revert s/alpha > /dev/null add an unrelated revision in svn and update the subrepo to without bringing any changes. $ svn mkdir "$SVNREPOURL/unrelated" -qm 'create unrelated' $ svn up -q s $ hg sum parent: 2:* tip (glob) Message! branch: default commit: (clean) update: (current) phases: 3 draft $ echo a > s/a should be empty despite change to s/a $ hg st add a commit from svn $ cd "$WCROOT/src" $ svn up -q $ echo xyz >> alpha $ svn propset svn:mime-type 'text/xml' alpha property 'svn:mime-type' set on 'alpha' $ svn ci -qm 'amend a from svn' $ cd ../../sub/t this commit from hg will fail $ echo zzz >> s/alpha $ (hg ci --subrepos -m 'amend alpha from hg' 2>&1; echo "[$?]") | grep -vi 'out of date' committing subrepository s abort: svn:*Commit failed (details follow): (glob) [255] $ svn revert -q s/alpha this commit fails because of meta changes $ svn propset svn:mime-type 'text/html' s/alpha property 'svn:mime-type' set on 's/alpha' (glob) $ (hg ci --subrepos -m 'amend alpha from hg' 2>&1; echo "[$?]") | grep -vi 'out of date' committing subrepository s abort: svn:*Commit failed (details follow): (glob) [255] $ svn revert -q s/alpha this commit fails because of externals changes $ echo zzz > s/externals/other $ hg ci --subrepos -m 'amend externals from hg' committing subrepository s abort: cannot commit svn externals (in subrepo s) [255] $ hg diff --subrepos -r 1:2 | grep -v diff --- a/.hgsubstate Thu Jan 01 00:00:00 1970 +0000 +++ b/.hgsubstate Thu Jan 01 00:00:00 1970 +0000 @@ -1,2 +1,2 @@ -2 s +3 s 2 subdir/s --- a/a Thu Jan 01 00:00:00 1970 +0000 +++ b/a Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +1,2 @@ a +a $ svn revert -q s/externals/other this commit fails because of externals meta changes $ svn propset svn:mime-type 'text/html' s/externals/other property 'svn:mime-type' set on 's/externals/other' (glob) $ hg ci --subrepos -m 'amend externals from hg' committing subrepository s abort: cannot commit svn externals (in subrepo s) [255] $ svn revert -q s/externals/other clone $ cd .. $ hg clone t tc updating to branch default A tc/s/alpha (glob) U tc/s (glob) Fetching external item into 'tc/s/externals'* (glob) A tc/s/externals/other (glob) Checked out external at revision 1. Checked out revision 3. A tc/subdir/s/alpha (glob) U tc/subdir/s (glob) Fetching external item into 'tc/subdir/s/externals'* (glob) A tc/subdir/s/externals/other (glob) Checked out external at revision 1. Checked out revision 2. 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd tc debugsub in clone $ hg debugsub path s source file://*/svn-repo/src (glob) revision 3 path subdir/s source file://*/svn-repo/src (glob) revision 2 verify subrepo is contained within the repo directory $ $PYTHON -c "import os.path; print os.path.exists('s')" True update to nullrev (must delete the subrepo) $ hg up null 0 files updated, 0 files merged, 3 files removed, 0 files unresolved $ ls Check hg update --clean $ cd "$TESTTMP/sub/t" $ cd s $ echo c0 > alpha $ echo c1 > f1 $ echo c1 > f2 $ svn add f1 -q $ svn status | sort ? * a (glob) ? * f2 (glob) A * f1 (glob) M * alpha (glob) Performing status on external item at 'externals'* (glob) X * externals (glob) $ cd ../.. $ hg -R t update -C Fetching external item into 't/s/externals'* (glob) Checked out external at revision 1. Checked out revision 3. 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd t/s $ svn status | sort ? * a (glob) ? * f1 (glob) ? * f2 (glob) Performing status on external item at 'externals'* (glob) X * externals (glob) Sticky subrepositories, no changes $ cd "$TESTTMP/sub/t" $ hg id -n 2 $ cd s $ svnversion 3 $ cd .. $ hg update 1 U *s/alpha (glob) Fetching external item into '*s/externals'* (glob) Checked out external at revision 1. Checked out revision 2. 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg id -n 1 $ cd s $ svnversion 2 $ cd .. Sticky subrepositories, file changes $ touch s/f1 $ cd s $ svn add f1 A f1 $ cd .. $ hg id -n 1+ $ cd s $ svnversion 2M $ cd .. $ hg update tip subrepository s diverged (local revision: 2, remote revision: 3) (M)erge, keep (l)ocal [working copy] or keep (r)emote [destination]? m subrepository sources for s differ use (l)ocal source (2) or (r)emote source (3)? l 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg id -n 2+ $ cd s $ svnversion 2M $ cd .. $ hg update --clean tip U *s/alpha (glob) Fetching external item into '*s/externals'* (glob) Checked out external at revision 1. Checked out revision 3. 1 files updated, 0 files merged, 0 files removed, 0 files unresolved Sticky subrepository, revision updates $ hg id -n 2 $ cd s $ svnversion 3 $ cd .. $ cd s $ svn update -qr 1 $ cd .. $ hg update 1 subrepository s diverged (local revision: 3, remote revision: 2) (M)erge, keep (l)ocal [working copy] or keep (r)emote [destination]? m subrepository sources for s differ (in checked out version) use (l)ocal source (1) or (r)emote source (2)? l 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg id -n 1+ $ cd s $ svnversion 1 $ cd .. Sticky subrepository, file changes and revision updates $ touch s/f1 $ cd s $ svn add f1 A f1 $ svnversion 1M $ cd .. $ hg id -n 1+ $ hg update tip subrepository s diverged (local revision: 3, remote revision: 3) (M)erge, keep (l)ocal [working copy] or keep (r)emote [destination]? m subrepository sources for s differ use (l)ocal source (1) or (r)emote source (3)? l 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg id -n 2+ $ cd s $ svnversion 1M $ cd .. Sticky repository, update --clean $ hg update --clean tip | grep -v 's[/\]externals[/\]other' U *s/alpha (glob) U *s (glob) Fetching external item into '*s/externals'* (glob) Checked out external at revision 1. Checked out revision 3. 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg id -n 2 $ cd s $ svnversion 3 $ cd .. Test subrepo already at intended revision: $ cd s $ svn update -qr 2 $ cd .. $ hg update 1 subrepository s diverged (local revision: 3, remote revision: 2) (M)erge, keep (l)ocal [working copy] or keep (r)emote [destination]? m 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg id -n 1+ $ cd s $ svnversion 2 $ cd .. Test case where subversion would fail to update the subrepo because there are unknown directories being replaced by tracked ones (happens with rebase). $ cd "$WCROOT/src" $ mkdir dir $ echo epsilon.py > dir/epsilon.py $ svn add dir A dir A dir/epsilon.py (glob) $ svn ci -qm 'Add dir/epsilon.py' $ cd ../.. $ hg init rebaserepo $ cd rebaserepo $ svn co -r5 --quiet "$SVNREPOURL"/src s $ echo "s = [svn] $SVNREPOURL/src" >> .hgsub $ hg add .hgsub $ hg ci -m addsub $ echo a > a $ hg add . adding a $ hg ci -m adda $ hg up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ svn up -qr6 s $ hg ci -m updatesub created new head $ echo pyc > s/dir/epsilon.pyc $ hg up 1 D *s/dir (glob) Fetching external item into '*s/externals'* (glob) Checked out external at revision 1. Checked out revision 5. 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg up -q 2 Modify one of the externals to point to a different path so we can test having obstructions when switching branches on checkout: $ hg checkout tip 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo "obstruct = [svn] $SVNREPOURL/externals" >> .hgsub $ svn co -r5 --quiet "$SVNREPOURL"/externals obstruct $ hg commit -m 'Start making obstructed working copy' $ hg book other $ hg co -r 'p1(tip)' 2 files updated, 0 files merged, 0 files removed, 0 files unresolved (leaving bookmark other) $ echo "obstruct = [svn] $SVNREPOURL/src" >> .hgsub $ svn co -r5 --quiet "$SVNREPOURL"/src obstruct $ hg commit -m 'Other branch which will be obstructed' created new head Switching back to the head where we have another path mapped to the same subrepo should work if the subrepo is clean. $ hg co other A *obstruct/other (glob) Checked out revision 1. 2 files updated, 0 files merged, 0 files removed, 0 files unresolved (activating bookmark other) This is surprising, but is also correct based on the current code: $ echo "updating should (maybe) fail" > obstruct/other $ hg co tip abort: uncommitted changes (commit or update --clean to discard changes) [255] Point to a Subversion branch which has since been deleted and recreated First, create that condition in the repository. $ hg ci --subrepos -m cleanup | filter_svn_output committing subrepository obstruct Sending obstruct/other (glob) Committed revision 7. At revision 7. $ svn mkdir -qm "baseline" $SVNREPOURL/trunk $ svn copy -qm "initial branch" $SVNREPOURL/trunk $SVNREPOURL/branch $ svn co --quiet "$SVNREPOURL"/branch tempwc $ cd tempwc $ echo "something old" > somethingold $ svn add somethingold A somethingold $ svn ci -qm 'Something old' $ svn rm -qm "remove branch" $SVNREPOURL/branch $ svn copy -qm "recreate branch" $SVNREPOURL/trunk $SVNREPOURL/branch $ svn up -q $ echo "something new" > somethingnew $ svn add somethingnew A somethingnew $ svn ci -qm 'Something new' $ cd .. $ rm -rf tempwc $ svn co "$SVNREPOURL/branch"@10 recreated A recreated/somethingold (glob) Checked out revision 10. $ echo "recreated = [svn] $SVNREPOURL/branch" >> .hgsub $ hg ci -m addsub $ cd recreated $ svn up -q $ cd .. $ hg ci -m updatesub $ hg up -r-2 D *recreated/somethingnew (glob) A *recreated/somethingold (glob) Checked out revision 10. 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (leaving bookmark other) $ test -f recreated/somethingold Test archive $ hg archive -S ../archive-all --debug --config progress.debug=true archiving: 0/2 files (0.00%) archiving: .hgsub 1/2 files (50.00%) archiving: .hgsubstate 2/2 files (100.00%) archiving (obstruct): 0/1 files (0.00%) archiving (obstruct): 1/1 files (100.00%) archiving (recreated): 0/1 files (0.00%) archiving (recreated): 1/1 files (100.00%) archiving (s): 0/2 files (0.00%) archiving (s): 1/2 files (50.00%) archiving (s): 2/2 files (100.00%) $ hg archive -S ../archive-exclude --debug --config progress.debug=true -X **old archiving: 0/2 files (0.00%) archiving: .hgsub 1/2 files (50.00%) archiving: .hgsubstate 2/2 files (100.00%) archiving (obstruct): 0/1 files (0.00%) archiving (obstruct): 1/1 files (100.00%) archiving (recreated): 0 files archiving (s): 0/2 files (0.00%) archiving (s): 1/2 files (50.00%) archiving (s): 2/2 files (100.00%) $ find ../archive-exclude | sort ../archive-exclude ../archive-exclude/.hg_archival.txt ../archive-exclude/.hgsub ../archive-exclude/.hgsubstate ../archive-exclude/obstruct ../archive-exclude/obstruct/other ../archive-exclude/s ../archive-exclude/s/alpha ../archive-exclude/s/dir ../archive-exclude/s/dir/epsilon.py Test forgetting files, not implemented in svn subrepo, used to traceback #if no-windows $ hg forget 'notafile*' notafile*: No such file or directory [1] #else $ hg forget 'notafile' notafile: * (glob) [1] #endif Test a subrepo referencing a just moved svn path. Last commit rev will be different from the revision, and the path will be different as well. $ cd "$WCROOT" $ svn up > /dev/null $ mkdir trunk/subdir branches $ echo a > trunk/subdir/a $ svn add trunk/subdir branches A trunk/subdir (glob) A trunk/subdir/a (glob) A branches $ svn ci -qm addsubdir $ svn cp -qm branchtrunk $SVNREPOURL/trunk $SVNREPOURL/branches/somebranch $ cd .. $ hg init repo2 $ cd repo2 $ svn co $SVNREPOURL/branches/somebranch/subdir A subdir/a (glob) Checked out revision 15. $ echo "subdir = [svn] $SVNREPOURL/branches/somebranch/subdir" > .hgsub $ hg add .hgsub $ hg ci -m addsub $ hg up null 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ hg up A *subdir/a (glob) Checked out revision 15. 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd .. Test sanitizing ".hg/hgrc" in subrepo $ cd sub/t $ hg update -q -C tip $ cd s $ mkdir .hg $ echo '.hg/hgrc in svn repo' > .hg/hgrc $ mkdir -p sub/.hg $ echo 'sub/.hg/hgrc in svn repo' > sub/.hg/hgrc $ svn add .hg sub A .hg A .hg/hgrc (glob) A sub A sub/.hg (glob) A sub/.hg/hgrc (glob) $ svn ci -qm 'add .hg/hgrc to be sanitized at hg update' $ svn up -q $ cd .. $ hg commit -S -m 'commit with svn revision including .hg/hgrc' $ grep ' s$' .hgsubstate 16 s $ cd .. $ hg -R tc pull -u -q 2>&1 | sort warning: removing potentially hostile 'hgrc' in '$TESTTMP/sub/tc/s/.hg' (glob) warning: removing potentially hostile 'hgrc' in '$TESTTMP/sub/tc/s/sub/.hg' (glob) $ cd tc $ grep ' s$' .hgsubstate 16 s $ test -f s/.hg/hgrc [1] $ test -f s/sub/.hg/hgrc [1] Test that sanitizing is omitted in meta data area: $ mkdir s/.svn/.hg $ echo '.hg/hgrc in svn metadata area' > s/.svn/.hg/hgrc $ hg update -q -C '.^1' $ cd ../..