Mercurial > hg
view tests/test-hook @ 11769:ca6cebd8734e stable
dirstate: ignore symlinks when fs cannot handle them (issue1888)
When the filesystem cannot handle the executable bit, we currently
ignore it completely when looking for modified files. Similarly, it is
impossible to set or clear the bit when the filesystem ignores it.
This patch makes Mercurial treat symbolic links the same way.
Symlinks are a little different since they manifest themselves as
small files containing a filename (the symlink target). On Windows,
these files show up as regular files, and on Linux and Mac they show
up as real symlinks.
Issue1888 presents a case where the symlink files are better ignored
from the Windows side. A Linux client creates symlinks in a working
copy which is shared over a network between Linux and Windows clients.
The Samba server is helpful and defererences the symlink when the
Windows client looks at it. This means that Mercurial on the Windows
side sees file content instead of a file name in the symlink, and
hence flags the link as modified. Ignoring the change would be much
more helpful, similarly to how Mercurial does not report any changes
when executable bits are ignored in a checkout on Windows.
An initial checkout of a symbolic link on a file system that cannot
handle symbolic links will still result in a regular file containing
the target file name as its content. Sharing such a checkout with a
Linux client will not turn the file into a symlink automatically, but
'hg revert' can fix that. After the revert, the Windows client will
see the correct file content (provided by the Samba server when it
follows the link on the Linux side) and otherwise ignore the change.
Running 'hg perfstatus' 10 times gives these results:
Before: After:
min: 0.544703 min: 0.546549
med: 0.547592 med: 0.548881
avg: 0.549146 avg: 0.548549
max: 0.564112 max: 0.551504
The median time is increased about 0.24%.
author | Martin Geisler <mg@aragost.com> |
---|---|
date | Mon, 09 Aug 2010 15:31:56 +0200 |
parents | 0e64d814d7d0 |
children |
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#!/bin/sh cp "$TESTDIR"/printenv.py . # commit hooks can see env vars hg init a cd a echo "[hooks]" > .hg/hgrc echo 'commit = unset HG_LOCAL HG_TAG; python ../printenv.py commit' >> .hg/hgrc echo 'commit.b = unset HG_LOCAL HG_TAG; python ../printenv.py commit.b' >> .hg/hgrc echo 'precommit = unset HG_LOCAL HG_NODE HG_TAG; python ../printenv.py precommit' >> .hg/hgrc echo 'pretxncommit = unset HG_LOCAL HG_TAG; python ../printenv.py pretxncommit' >> .hg/hgrc echo 'pretxncommit.tip = hg -q tip' >> .hg/hgrc echo 'pre-identify = python ../printenv.py pre-identify 1' >> .hg/hgrc echo 'pre-cat = python ../printenv.py pre-cat' >> .hg/hgrc echo 'post-cat = python ../printenv.py post-cat' >> .hg/hgrc echo a > a hg add a hg commit -m a -d "1000000 0" hg clone . ../b cd ../b # changegroup hooks can see env vars echo '[hooks]' > .hg/hgrc echo 'prechangegroup = python ../printenv.py prechangegroup' >> .hg/hgrc echo 'changegroup = python ../printenv.py changegroup' >> .hg/hgrc echo 'incoming = python ../printenv.py incoming' >> .hg/hgrc # pretxncommit and commit hooks can see both parents of merge cd ../a echo b >> a hg commit -m a1 -d "1 0" hg update -C 0 echo b > b hg add b hg commit -m b -d '1 0' hg merge 1 hg commit -m merge -d '2 0' # test generic hooks hg id hg cat b cd ../b hg pull ../a # tag hooks can see env vars cd ../a echo 'pretag = python ../printenv.py pretag' >> .hg/hgrc echo 'tag = unset HG_PARENT1 HG_PARENT2; python ../printenv.py tag' >> .hg/hgrc hg tag -d '3 0' a hg tag -l la # pretag hook can forbid tagging echo 'pretag.forbid = python ../printenv.py pretag.forbid 1' >> .hg/hgrc hg tag -d '4 0' fa hg tag -l fla # pretxncommit hook can see changeset, can roll back txn, changeset # no more there after echo 'pretxncommit.forbid0 = hg tip -q' >> .hg/hgrc echo 'pretxncommit.forbid1 = python ../printenv.py pretxncommit.forbid 1' >> .hg/hgrc echo z > z hg add z hg -q tip hg commit -m 'fail' -d '4 0' hg -q tip # precommit hook can prevent commit echo 'precommit.forbid = python ../printenv.py precommit.forbid 1' >> .hg/hgrc hg commit -m 'fail' -d '4 0' hg -q tip # preupdate hook can prevent update echo 'preupdate = python ../printenv.py preupdate' >> .hg/hgrc hg update 1 # update hook echo 'update = python ../printenv.py update' >> .hg/hgrc hg update # prechangegroup hook can prevent incoming changes cd ../b hg -q tip echo '[hooks]' > .hg/hgrc echo 'prechangegroup.forbid = python ../printenv.py prechangegroup.forbid 1' >> .hg/hgrc hg pull ../a # pretxnchangegroup hook can see incoming changes, can roll back txn, # incoming changes no longer there after echo '[hooks]' > .hg/hgrc echo 'pretxnchangegroup.forbid0 = hg tip -q' >> .hg/hgrc echo 'pretxnchangegroup.forbid1 = python ../printenv.py pretxnchangegroup.forbid 1' >> .hg/hgrc hg pull ../a hg -q tip # outgoing hooks can see env vars rm .hg/hgrc echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing = python ../printenv.py preoutgoing' >> ../a/.hg/hgrc echo 'outgoing = python ../printenv.py outgoing' >> ../a/.hg/hgrc hg pull ../a hg rollback # preoutgoing hook can prevent outgoing changes echo 'preoutgoing.forbid = python ../printenv.py preoutgoing.forbid 1' >> ../a/.hg/hgrc hg pull ../a # outgoing hooks work for local clones cd .. echo '[hooks]' > a/.hg/hgrc echo 'preoutgoing = python ../printenv.py preoutgoing' >> a/.hg/hgrc echo 'outgoing = python ../printenv.py outgoing' >> a/.hg/hgrc hg clone a c rm -rf c # preoutgoing hook can prevent outgoing changes for local clones echo 'preoutgoing.forbid = python ../printenv.py preoutgoing.forbid 1' >> a/.hg/hgrc hg clone a zzz cd b cat > hooktests.py <<EOF from mercurial import util uncallable = 0 def printargs(args): args.pop('ui', None) args.pop('repo', None) a = list(args.items()) a.sort() print 'hook args:' for k, v in a: print ' ', k, v def passhook(**args): printargs(args) def failhook(**args): printargs(args) return True class LocalException(Exception): pass def raisehook(**args): raise LocalException('exception from hook') def aborthook(**args): raise util.Abort('raise abort from hook') def brokenhook(**args): return 1 + {} class container: unreachable = 1 EOF echo '# test python hooks' PYTHONPATH="`pwd`:$PYTHONPATH" export PYTHONPATH echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.broken = python:hooktests.brokenhook' >> ../a/.hg/hgrc hg pull ../a 2>&1 | grep 'raised an exception' echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.raise = python:hooktests.raisehook' >> ../a/.hg/hgrc hg pull ../a 2>&1 | grep 'raised an exception' echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.abort = python:hooktests.aborthook' >> ../a/.hg/hgrc hg pull ../a echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.fail = python:hooktests.failhook' >> ../a/.hg/hgrc hg pull ../a echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.uncallable = python:hooktests.uncallable' >> ../a/.hg/hgrc hg pull ../a echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.nohook = python:hooktests.nohook' >> ../a/.hg/hgrc hg pull ../a echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.nomodule = python:nomodule' >> ../a/.hg/hgrc hg pull ../a echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.badmodule = python:nomodule.nowhere' >> ../a/.hg/hgrc hg pull ../a echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.unreachable = python:hooktests.container.unreachable' >> ../a/.hg/hgrc hg pull ../a echo '[hooks]' > ../a/.hg/hgrc echo 'preoutgoing.pass = python:hooktests.passhook' >> ../a/.hg/hgrc hg pull ../a echo '# make sure --traceback works' echo '[hooks]' > .hg/hgrc echo 'commit.abort = python:hooktests.aborthook' >> .hg/hgrc echo aa > a hg --traceback commit -d '0 0' -ma 2>&1 | grep '^Traceback' cd .. hg init c cd c cat > hookext.py <<EOF def autohook(**args): print "Automatically installed hook" def reposetup(ui, repo): repo.ui.setconfig("hooks", "commit.auto", autohook) EOF echo '[extensions]' >> .hg/hgrc echo 'hookext = hookext.py' >> .hg/hgrc touch foo hg add foo hg ci -d '0 0' -m 'add foo' echo >> foo hg ci --debug -d '0 0' -m 'change foo' | sed -e 's/ at .*>/>/' hg showconfig hooks | sed -e 's/ at .*>/>/' echo '# test python hook configured with python:[file]:[hook] syntax' cd .. mkdir d cd d hg init repo mkdir hooks cd hooks cat > testhooks.py <<EOF def testhook(**args): print 'hook works' EOF echo '[hooks]' > ../repo/.hg/hgrc echo "pre-commit.test = python:`pwd`/testhooks.py:testhook" >> ../repo/.hg/hgrc cd ../repo hg commit -d '0 0' cd ../../b echo '# make sure --traceback works on hook import failure' cat > importfail.py <<EOF import somebogusmodule # dereference something in the module to force demandimport to load it somebogusmodule.whatever EOF echo '[hooks]' > .hg/hgrc echo 'precommit.importfail = python:importfail.whatever' >> .hg/hgrc echo a >> a hg --traceback commit -d '0 0' -ma 2>&1 | egrep '^(exception|Traceback|ImportError)' echo '# commit and update hooks should run after command completion (issue 1827)' echo '[hooks]' > .hg/hgrc echo 'commit = hg id' >> .hg/hgrc echo 'update = hg id' >> .hg/hgrc echo bb > a hg ci -d '0 0' -ma hg up 0 exit 0