Mercurial > hg
view tests/test-casefolding.t @ 27430:e240e914d226 stable
revlog: seek to end of file before writing (issue4943)
Revlogs were recently refactored to open file handles in "a+" and use a
persistent file handle for reading and writing. This drastically
reduced the number of file handles being opened.
Unfortunately, it appears that some versions of Solaris lose the file
offset when performing a write after the handle has been seeked.
The simplest workaround is to seek to EOF on files opened in a+ mode
before writing to them, which is what this patch does.
Ideally, this code would exist in the vfs layer. However, this would
require creating a proxy class for file objects in order to provide a
custom implementation of write(). This would add overhead. Since
revlogs are the only files we open in a+ mode, the one-off workaround
in revlog.py should be sufficient.
This patch appears to have little to no impact on performance on my
Linux machine.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 17 Dec 2015 17:16:02 -0800 |
parents | 85785cd3b69f |
children | 76c57e1fe79b |
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#require icasefs $ hg debugfs | grep 'case-sensitive:' case-sensitive: no test file addition with bad case $ hg init repo1 $ cd repo1 $ echo a > a $ hg add A adding a $ hg st A a $ hg ci -m adda $ hg manifest a $ cd .. test case collision on rename (issue750) $ hg init repo2 $ cd repo2 $ echo a > a $ hg --debug ci -Am adda adding a committing files: a committing manifest committing changelog committed changeset 0:07f4944404050f47db2e5c5071e0e84e7a27bba9 Case-changing renames should work: $ hg mv a A $ hg mv A a $ hg st addremove after case-changing rename has no effect (issue4590) $ hg mv a A $ hg addremove recording removal of a as rename to A (100% similar) $ hg revert --all forgetting A undeleting a test changing case of path components $ mkdir D $ echo b > D/b $ hg ci -Am addb D/b $ hg mv D/b d/b D/b: not overwriting - file exists $ hg mv D/b d/c $ hg st A D/c R D/b $ mv D temp $ mv temp d $ hg st A D/c R D/b $ hg revert -aq $ rm d/c $ echo c > D/c $ hg add D/c $ hg st A D/c $ hg ci -m addc D/c $ hg mv d/b d/e moving D/b to D/e (glob) $ hg st A D/e R D/b $ hg revert -aq $ rm d/e $ hg mv d/b D/B moving D/b to D/B (glob) $ hg st A D/B R D/b $ cd .. test case collision between revisions (issue912) $ hg init repo3 $ cd repo3 $ echo a > a $ hg ci -Am adda adding a $ hg rm a $ hg ci -Am removea $ echo A > A on linux hfs keeps the old case stored, force it $ mv a aa $ mv aa A $ hg ci -Am addA adding A used to fail under case insensitive fs $ hg up -C 0 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg up -C 1 files updated, 0 files merged, 1 files removed, 0 files unresolved no clobbering of untracked files with wrong casing $ hg up -r null 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo gold > a $ hg up A: untracked file differs abort: untracked files in working directory differ from files in requested revision [255] $ cat a gold $ rm a test that normal file in different case on target context is not unlinked by largefiles extension. $ cat >> .hg/hgrc <<EOF > [extensions] > largefiles= > EOF $ hg update -q -C 1 $ hg status -A $ echo 'A as largefiles' > A $ hg add --large A $ hg commit -m '#3' created new head $ hg manifest -r 3 .hglf/A $ hg manifest -r 0 a $ hg update -q -C 0 $ hg status -A C a $ hg update -q -C 3 $ hg update -q 0 $ hg up -C -r 2 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg mv A a $ hg diff -g > rename.diff $ hg ci -m 'A -> a' $ hg up -q '.^' $ hg import rename.diff -m "import rename A -> a" applying rename.diff $ hg st ? rename.diff $ hg files a $ find * | sort a rename.diff $ rm rename.diff $ cd .. issue 3342: file in nested directory causes unexpected abort $ hg init issue3342 $ cd issue3342 $ mkdir -p a/B/c/D $ echo e > a/B/c/D/e $ hg add a/B/c/D/e $ hg ci -m 'add e' issue 4481: revert across case only renames $ hg mv a/B/c/D/e a/B/c/d/E $ hg ci -m "uppercase E" $ echo 'foo' > a/B/c/D/E $ hg ci -m 'e content change' $ hg revert --all -r 0 removing a/B/c/D/E (glob) adding a/B/c/D/e (glob) $ find * | sort a a/B a/B/c a/B/c/D a/B/c/D/e a/B/c/D/e.orig $ cd .. issue 3340: mq does not handle case changes correctly in addition to reported case, 'hg qrefresh' is also tested against case changes. $ echo "[extensions]" >> $HGRCPATH $ echo "mq=" >> $HGRCPATH $ hg init issue3340 $ cd issue3340 $ echo a > mIxEdCaSe $ hg add mIxEdCaSe $ hg commit -m '#0' $ hg rename mIxEdCaSe tmp $ hg rename tmp MiXeDcAsE $ hg status -A A MiXeDcAsE mIxEdCaSe R mIxEdCaSe $ hg qnew changecase $ hg status -A C MiXeDcAsE $ hg qpop -a popping changecase patch queue now empty $ hg qnew refresh-casechange $ hg status -A C mIxEdCaSe $ hg rename mIxEdCaSe tmp $ hg rename tmp MiXeDcAsE $ hg status -A A MiXeDcAsE mIxEdCaSe R mIxEdCaSe $ hg qrefresh $ hg status -A C MiXeDcAsE $ hg qpop -a popping refresh-casechange patch queue now empty $ hg qnew refresh-pattern $ hg status $ echo A > A $ hg add adding A $ hg qrefresh a # issue 3271, qrefresh with file handled case wrong $ hg status # empty status means the qrefresh worked #if osx We assume anyone running the tests on a case-insensitive volume on OS X will be using HFS+. If that's not true, this test will fail. $ rm A >>> open(u'a\u200c'.encode('utf-8'), 'w').write('unicode is fun') $ hg status M A #endif $ cd ..