Mercurial > hg
view tests/test-hgwebdirsym.t @ 30000:557454ce854a
changelog: specify checkambig=True to revlog.__init__, to avoid ambiguity
If steps below occurs at "the same time in sec", all of mtime, ctime
and size are same between (1) and (3).
1. append data to 00changelog.i (and close transaction)
2. discard appended data by truncation (strip or rollback)
3. append same size but different data to 00changelog.i again
Therefore, cache validation doesn't work after (3) as expected.
To avoid such file stat ambiguity around truncation, this patch
specifies checkambig=True to revlog.__init__(). This makes revlog
write changes out with checkambig=True.
Even though changes of 00changelog.i themselves are written out at
changelog._finalize(), this checkambig=True is needed, because
revlog.checkinlinesize(), which is invoked at the end of
changelog._finalize(), might replace already changed 00changelog.i by
converted one.
Even after this patch, avoiding file stat ambiguity of 00changelog.i
around truncation isn't yet completed, because truncation side isn't
aware of this issue.
This is a part of ExactCacheValidationPlan.
https://www.mercurial-scm.org/wiki/ExactCacheValidationPlan
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Thu, 22 Sep 2016 21:51:59 +0900 |
parents | 4d2b9b304ad0 |
children |
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#require serve symlink Tests whether or not hgwebdir properly handles various symlink topologies. hide outer repo $ hg init $ hg init a $ echo a > a/a $ hg --cwd a ci -Ama -d'1 0' adding a $ mkdir webdir $ cd webdir $ hg init b $ echo b > b/b $ hg --cwd b ci -Amb -d'2 0' adding b $ hg init c $ echo c > c/c $ hg --cwd c ci -Amc -d'3 0' adding c $ ln -s ../a al $ ln -s ../webdir circle $ root=`pwd` $ cd .. $ cat > collections.conf <<EOF > [collections] > $root=$root > EOF $ hg serve -p $HGPORT -d --pid-file=hg.pid --webdir-conf collections.conf \ > -A access-collections.log -E error-collections.log $ cat hg.pid >> $DAEMON_PIDS should succeed $ get-with-headers.py localhost:$HGPORT '?style=raw' 200 Script output follows /al/ /b/ /c/ $ get-with-headers.py localhost:$HGPORT 'al/file/tip/a?style=raw' 200 Script output follows a $ get-with-headers.py localhost:$HGPORT 'b/file/tip/b?style=raw' 200 Script output follows b $ get-with-headers.py localhost:$HGPORT 'c/file/tip/c?style=raw' 200 Script output follows c should fail $ get-with-headers.py localhost:$HGPORT 'circle/al/file/tip/a?style=raw' 404 Not Found error: repository circle/al/file/tip/a not found [1] $ get-with-headers.py localhost:$HGPORT 'circle/b/file/tip/a?style=raw' 404 Not Found error: repository circle/b/file/tip/a not found [1] $ get-with-headers.py localhost:$HGPORT 'circle/c/file/tip/a?style=raw' 404 Not Found error: repository circle/c/file/tip/a not found [1] collections errors $ cat error-collections.log