Mercurial > hg
view tests/test-pending.t @ 30446:b324b4e431e5
posix: give checkexec a fast path; keep the check files and test read only
Before, Mercurial would create a new temporary file every time, stat it, change
its exec mode, stat it again, and delete it. Most of this dance was done to
handle the rare and not-so-essential case of VFAT mounts on unix. The cost of
that was paid by the much more common and important case of using normal file
systems.
Instead, try to create and preserve .hg/cache/checkisexec and
.hg/cache/checknoexec with and without exec flag set. If the files exist and
have correct exec flags set, we can conclude that that file system supports the
exec flag. Best case, the whole exec check can thus be done with two stat
calls. Worst case, we delete the wrong files and check as usual. That will be
because temporary loss of exec bit or on file systems without support for the
exec bit. In that case we check as we did before, with the additional overhead
of one extra stat call.
It is possible that this different test algorithm in some cases on odd file
systems will give different behaviour. Again, I think it will be rare and
special cases and I think it is worth the risk.
test-clone.t happens to show the situation where checkisexec is left behind
from the old style check, while checknoexec only will be created next time a
exec check will be performed.
author | Mads Kiilerich <madski@unity3d.com> |
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date | Wed, 14 Jan 2015 01:15:26 +0100 |
parents | b2c1ff96c1e1 |
children | f14879f61cd8 |
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Verify that pending changesets are seen by pretxn* hooks but not by other processes that access the destination repo while the hooks are running. The hooks (python and external) both reject changesets after some think time, during which another process runs pull. Each hook creates a file ('notify') to indicate to the controlling process that it is running; the process removes the file to indicate the hook can terminate. init env vars $ d=`pwd` $ maxwait=20 utility to run the test - start a push in the background and run pull $ dotest() { > rm -f notify > printf 'push '; hg -R child-push tip --template '{node}\n' > hg -R child-push -q push > push.out 2>&1 & > > # wait for hook to create the notify file > i=$maxwait > while [ ! -f notify -a $i != 0 ]; do > sleep 1 > i=`expr $i - 1` > done > > # run pull > hg -R child-pull -q pull > rc=$? > > # tell hook to finish; notify should exist. > rm notify > wait > > cat push.out > printf 'pull '; hg -R child-pull tip --template '{node}\n' > return $rc > } python hook $ cat <<EOF > reject.py > import os, time > from mercurial import ui, localrepo > def rejecthook(ui, repo, hooktype, node, **opts): > ui.write('hook %s\\n' % repo['tip'].hex()) > # create the notify file so caller knows we're running > fpath = os.path.join('$d', 'notify') > f = open(fpath, 'w') > f.close() > # wait for ack - caller should delete the notify file > i = $maxwait > while os.path.exists(fpath) and i > 0: > time.sleep(1) > i -= 1 > return True # reject the changesets > EOF external hook $ cat <<EOF > reject.sh > printf 'hook '; hg tip --template '{node}\\n' > # create the notify file so caller knows we're running > fpath=$d/notify > touch \$fpath > # wait for ack - caller should delete the notify file > i=$maxwait > while [ -f \$fpath -a \$i != 0 ]; do > sleep 1 > i=\`expr \$i - 1\` > done > exit 1 # reject the changesets > EOF create repos $ hg init parent $ hg clone -q parent child-push $ hg clone -q parent child-pull $ echo a > child-push/a $ hg -R child-push add child-push/a $ hg -R child-push commit -m a -d '1000000 0' test python hook $ cat <<EOF > parent/.hg/hgrc > [extensions] > reject = $d/reject.py > [hooks] > pretxnchangegroup = python:reject.rejecthook > EOF $ dotest push 29b62aeb769fdf78d8d9c5f28b017f76d7ef824b hook 29b62aeb769fdf78d8d9c5f28b017f76d7ef824b transaction abort! rollback completed abort: pretxnchangegroup hook failed pull 0000000000000000000000000000000000000000 test external hook $ cat <<EOF > parent/.hg/hgrc > [hooks] > pretxnchangegroup = sh $d/reject.sh > EOF $ dotest push 29b62aeb769fdf78d8d9c5f28b017f76d7ef824b hook 29b62aeb769fdf78d8d9c5f28b017f76d7ef824b transaction abort! rollback completed abort: pretxnchangegroup hook exited with status 1 pull 0000000000000000000000000000000000000000 Test that pending on transaction without changegroup see the normal changegroup( (issue4609) $ cat <<EOF > parent/.hg/hgrc > [hooks] > pretxnchangegroup= > pretxnclose = hg tip -T "tip: {node|short}\n" > [phases] > publishing=False > EOF setup $ cd parent $ echo a > a $ hg add a $ hg commit -m a tip: cb9a9f314b8b actual test $ hg phase --public . tip: cb9a9f314b8b