Mercurial > hg
view tests/test-issue2137.t @ 48390:322525db4c98
status: use filesystem time boundary to invalidate racy mtime
We record the filesystem time at the start of the status walk and use that as a
boundary to detect files that might be modified during (or right after) the
status run without the mtime allowing that edition to be detected. We
currently do this at a second precision. In a later patch, we will use
nanosecond precision when available.
To cope with "broken" time on the file system where file could be in the
future, we also keep mtime for file over one day in the future. See inline
comment for details.
Large file tests get a bit more confused as we reduce the odds for race
condition.
As a "side effect", the win32text extension is happy again.
Differential Revision: https://phab.mercurial-scm.org/D11794
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 18 Nov 2021 13:12:40 +0100 |
parents | c4ccc73f9d49 |
children |
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https://bz.mercurial-scm.org/2137 Setup: create a little extension that has 3 side-effects: 1) ensure changelog data is not inlined 2) make revlog to use lazyparser 3) test that repo.lookup() works 1 and 2 are preconditions for the bug; 3 is the bug. $ cat > commitwrapper.py <<EOF > from mercurial import extensions, node, revlog > > def reposetup(ui, repo): > class wraprepo(repo.__class__): > def commit(self, *args, **kwargs): > result = super(wraprepo, self).commit(*args, **kwargs) > tip1 = node.short(repo.changelog.tip()) > tip2 = node.short(repo.lookup(tip1)) > assert tip1 == tip2 > ui.write(b'new tip: %s\n' % tip1) > return result > repo.__class__ = wraprepo > > def extsetup(ui): > revlog._maxinline = 8 # split out 00changelog.d early > revlog._prereadsize = 8 # use revlog.lazyparser > EOF $ cat >> $HGRCPATH <<EOF > [extensions] > commitwrapper = `pwd`/commitwrapper.py > EOF $ hg init repo1 $ cd repo1 $ echo a > a $ hg commit -A -m'add a with a long commit message to make the changelog a bit bigger' adding a new tip: 553596fad57b Test that new changesets are visible to repo.lookup(): $ echo a >> a $ hg commit -m'one more commit to demonstrate the bug' new tip: 799ae3599e0e $ hg tip changeset: 1:799ae3599e0e tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: one more commit to demonstrate the bug $ cd ..