Mercurial > hg
view tests/blackbox-readonly-dispatch.py @ 42943:5fadf6103790
remotefilelog: replace repack lock to solve race condition
2c74337e6483 reduced the probability of race-conditions when starting
background repack and prefetch and we saw the difference in our CI instance
with all failures disappearing except one where one call to waitonrepack seems
to returns too early.
I'm not sure what exactly goes wrong but I realized that while the prefetch
operation uses a standard Mercurial lock, the repack operation is using a
custom lock based on `fcntl.flock` on available platforms. As `extutil.flock`
fallback on traditional Mercurial locks on other platforms and the tests are
stable on my laptop, our CI environment and GCC112, I'm sending this patch to
standardize the behavior across environments.
Differential Revision: https://phab.mercurial-scm.org/D6844
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Wed, 11 Sep 2019 17:41:13 +0200 |
parents | c93d046d4300 |
children | 2372284d9457 |
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from __future__ import absolute_import import os from mercurial import ( dispatch, extensions, ui as uimod, ) def testdispatch(cmd): """Simple wrapper around dispatch.dispatch() Prints command and result value, but does not handle quoting. """ ui = uimod.ui.load() extensions.populateui(ui) ui.status(b"running: %s\n" % cmd) req = dispatch.request(cmd.split(), ui) result = dispatch.dispatch(req) ui.status(b"result: %r\n" % result) # create file 'foo', add and commit f = open(b'foo', 'wb') f.write(b'foo\n') f.close() testdispatch(b"--debug add foo") testdispatch(b"--debug commit -m commit1 -d 2000-01-01 foo") # append to file 'foo' and commit f = open(b'foo', 'ab') f.write(b'bar\n') f.close() # remove blackbox.log directory (proxy for readonly log file) os.rmdir(b".hg/blackbox.log") # replace it with the real blackbox.log file os.rename(b".hg/blackbox.log-", b".hg/blackbox.log") testdispatch(b"--debug commit -m commit2 -d 2000-01-02 foo") # check 88803a69b24 (fancyopts modified command table) testdispatch(b"--debug log -r 0") testdispatch(b"--debug log -r tip")