Mercurial > hg
view tests/test-walk.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> |
---|---|
date | Wed, 14 Jan 2015 01:15:26 +0100 |
parents | 70e822796ac8 |
children | 88358446da16 |
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$ hg init t $ cd t $ mkdir -p beans $ for b in kidney navy turtle borlotti black pinto; do > echo $b > beans/$b > done $ mkdir -p mammals/Procyonidae $ for m in cacomistle coatimundi raccoon; do > echo $m > mammals/Procyonidae/$m > done $ echo skunk > mammals/skunk $ echo fennel > fennel $ echo fenugreek > fenugreek $ echo fiddlehead > fiddlehead $ hg addremove adding beans/black adding beans/borlotti adding beans/kidney adding beans/navy adding beans/pinto adding beans/turtle adding fennel adding fenugreek adding fiddlehead adding mammals/Procyonidae/cacomistle adding mammals/Procyonidae/coatimundi adding mammals/Procyonidae/raccoon adding mammals/skunk $ hg commit -m "commit #0" $ hg debugwalk f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle f fennel fennel f fenugreek fenugreek f fiddlehead fiddlehead f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ hg debugwalk -I. f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle f fennel fennel f fenugreek fenugreek f fiddlehead fiddlehead f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ cd mammals $ hg debugwalk f beans/black ../beans/black f beans/borlotti ../beans/borlotti f beans/kidney ../beans/kidney f beans/navy ../beans/navy f beans/pinto ../beans/pinto f beans/turtle ../beans/turtle f fennel ../fennel f fenugreek ../fenugreek f fiddlehead ../fiddlehead f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk -X ../beans f fennel ../fennel f fenugreek ../fenugreek f fiddlehead ../fiddlehead f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk -I '*k' f mammals/skunk skunk $ hg debugwalk -I 'glob:*k' f mammals/skunk skunk $ hg debugwalk -I 'relglob:*k' f beans/black ../beans/black f fenugreek ../fenugreek f mammals/skunk skunk $ hg debugwalk -I 'relglob:*k' . f mammals/skunk skunk $ hg debugwalk -I 're:.*k$' f beans/black ../beans/black f fenugreek ../fenugreek f mammals/skunk skunk $ hg debugwalk -I 'relre:.*k$' f beans/black ../beans/black f fenugreek ../fenugreek f mammals/skunk skunk $ hg debugwalk -I 'path:beans' f beans/black ../beans/black f beans/borlotti ../beans/borlotti f beans/kidney ../beans/kidney f beans/navy ../beans/navy f beans/pinto ../beans/pinto f beans/turtle ../beans/turtle $ hg debugwalk -I 'relpath:detour/../../beans' f beans/black ../beans/black f beans/borlotti ../beans/borlotti f beans/kidney ../beans/kidney f beans/navy ../beans/navy f beans/pinto ../beans/pinto f beans/turtle ../beans/turtle $ hg debugwalk . f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk -I. f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk Procyonidae f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon $ cd Procyonidae $ hg debugwalk . f mammals/Procyonidae/cacomistle cacomistle f mammals/Procyonidae/coatimundi coatimundi f mammals/Procyonidae/raccoon raccoon $ hg debugwalk .. f mammals/Procyonidae/cacomistle cacomistle f mammals/Procyonidae/coatimundi coatimundi f mammals/Procyonidae/raccoon raccoon f mammals/skunk ../skunk $ cd .. $ hg debugwalk ../beans f beans/black ../beans/black f beans/borlotti ../beans/borlotti f beans/kidney ../beans/kidney f beans/navy ../beans/navy f beans/pinto ../beans/pinto f beans/turtle ../beans/turtle $ hg debugwalk . f mammals/Procyonidae/cacomistle Procyonidae/cacomistle f mammals/Procyonidae/coatimundi Procyonidae/coatimundi f mammals/Procyonidae/raccoon Procyonidae/raccoon f mammals/skunk skunk $ hg debugwalk .hg abort: path 'mammals/.hg' is inside nested repo 'mammals' (glob) [255] $ hg debugwalk ../.hg abort: path contains illegal component: .hg [255] $ cd .. $ hg debugwalk -Ibeans f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk -I '{*,{b,m}*/*}k' f beans/black beans/black f fenugreek fenugreek f mammals/skunk mammals/skunk $ hg debugwalk -Ibeans mammals $ hg debugwalk -Inon-existent $ hg debugwalk -Inon-existent -Ibeans/black f beans/black beans/black $ hg debugwalk -Ibeans beans/black f beans/black beans/black exact $ hg debugwalk -Ibeans/black beans f beans/black beans/black $ hg debugwalk -Xbeans/black beans f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk -Xbeans/black -Ibeans f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk -Xbeans/black beans/black f beans/black beans/black exact $ hg debugwalk -Xbeans/black -Ibeans/black $ hg debugwalk -Xbeans beans/black f beans/black beans/black exact $ hg debugwalk -Xbeans -Ibeans/black $ hg debugwalk 'glob:mammals/../beans/b*' f beans/black beans/black f beans/borlotti beans/borlotti $ hg debugwalk '-X*/Procyonidae' mammals f mammals/skunk mammals/skunk $ hg debugwalk path:mammals f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ hg debugwalk .. abort: .. not under root '$TESTTMP/t' (glob) [255] $ hg debugwalk beans/../.. abort: beans/../.. not under root '$TESTTMP/t' (glob) [255] $ hg debugwalk .hg abort: path contains illegal component: .hg [255] $ hg debugwalk beans/../.hg abort: path contains illegal component: .hg [255] $ hg debugwalk beans/../.hg/data abort: path contains illegal component: .hg/data (glob) [255] $ hg debugwalk beans/.hg abort: path 'beans/.hg' is inside nested repo 'beans' (glob) [255] Test absolute paths: $ hg debugwalk `pwd`/beans f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk `pwd`/.. abort: $TESTTMP/t/.. not under root '$TESTTMP/t' (glob) [255] Test patterns: $ hg debugwalk glob:\* f fennel fennel f fenugreek fenugreek f fiddlehead fiddlehead #if eol-in-paths $ echo glob:glob > glob:glob $ hg addremove adding glob:glob warning: filename contains ':', which is reserved on Windows: 'glob:glob' $ hg debugwalk glob:\* f fennel fennel f fenugreek fenugreek f fiddlehead fiddlehead f glob:glob glob:glob $ hg debugwalk glob:glob glob: No such file or directory $ hg debugwalk glob:glob:glob f glob:glob glob:glob exact $ hg debugwalk path:glob:glob f glob:glob glob:glob exact $ rm glob:glob $ hg addremove removing glob:glob #endif $ hg debugwalk 'glob:**e' f beans/turtle beans/turtle f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle $ hg debugwalk 're:.*[kb]$' f beans/black beans/black f fenugreek fenugreek f mammals/skunk mammals/skunk $ hg debugwalk path:beans/black f beans/black beans/black exact $ hg debugwalk path:beans//black f beans/black beans/black exact $ hg debugwalk relglob:Procyonidae $ hg debugwalk 'relglob:Procyonidae/**' f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon $ hg debugwalk 'relglob:Procyonidae/**' fennel f fennel fennel exact f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon $ hg debugwalk beans 'glob:beans/*' f beans/black beans/black f beans/borlotti beans/borlotti f beans/kidney beans/kidney f beans/navy beans/navy f beans/pinto beans/pinto f beans/turtle beans/turtle $ hg debugwalk 'glob:mamm**' f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ hg debugwalk 'glob:mamm**' fennel f fennel fennel exact f mammals/Procyonidae/cacomistle mammals/Procyonidae/cacomistle f mammals/Procyonidae/coatimundi mammals/Procyonidae/coatimundi f mammals/Procyonidae/raccoon mammals/Procyonidae/raccoon f mammals/skunk mammals/skunk $ hg debugwalk 'glob:j*' $ hg debugwalk NOEXIST NOEXIST: * (glob) #if fifo $ mkfifo fifo $ hg debugwalk fifo fifo: unsupported file type (type is fifo) #endif $ rm fenugreek $ hg debugwalk fenugreek f fenugreek fenugreek exact $ hg rm fenugreek $ hg debugwalk fenugreek f fenugreek fenugreek exact $ touch new $ hg debugwalk new f new new exact $ mkdir ignored $ touch ignored/file $ echo '^ignored$' > .hgignore $ hg debugwalk ignored $ hg debugwalk ignored/file f ignored/file ignored/file exact Test listfile and listfile0 $ $PYTHON -c "file('listfile0', 'wb').write('fenugreek\0new\0')" $ hg debugwalk -I 'listfile0:listfile0' f fenugreek fenugreek f new new $ $PYTHON -c "file('listfile', 'wb').write('fenugreek\nnew\r\nmammals/skunk\n')" $ hg debugwalk -I 'listfile:listfile' f fenugreek fenugreek f mammals/skunk mammals/skunk f new new $ cd .. $ hg debugwalk -R t t/mammals/skunk f mammals/skunk t/mammals/skunk exact $ mkdir t2 $ cd t2 $ hg debugwalk -R ../t ../t/mammals/skunk f mammals/skunk ../t/mammals/skunk exact $ hg debugwalk --cwd ../t mammals/skunk f mammals/skunk mammals/skunk exact $ cd .. Test split patterns on overflow $ cd t $ echo fennel > overflow.list $ $PYTHON -c "for i in xrange(20000 / 100): print 'x' * 100" >> overflow.list $ echo fenugreek >> overflow.list $ hg debugwalk 'listfile:overflow.list' 2>&1 | grep -v '^xxx' f fennel fennel exact f fenugreek fenugreek exact $ cd ..