util._matcher: speed up regexp matching.
In 4babaa52badf, Benoit made a change that substantially slows matching
when a big .hgignore file is in play, because it calls into the regexp
matching engine potentially hundreds of times per file to be matched.
I've partly rolled back his change, so that we only call into the matcher
once per file, but preserved the ability to report a meaningful error
message if there's a syntax error in the regexp.
#!/bin/sh
mkdir t
cd t
hg init
hg id
echo a > a
hg add a
hg commit -m "test" -d "1000000 0"
hg co
hg identify
T=`hg tip --debug | head -n 1 | cut -d : -f 3`
hg tag -l "This is a local tag with a really long name!"
hg tags
rm .hg/localtags
echo "$T first" > .hgtags
cat .hgtags
hg add .hgtags
hg commit -m "add tags" -d "1000000 0"
hg tags
hg identify
echo bb > a
hg status
hg identify
hg co first
hg id
hg -v id
hg status
echo 1 > b
hg add b
hg commit -m "branch" -d "1000000 0"
hg id
hg merge 1
hg id
hg status
hg commit -m "merge" -d "1000000 0"
# create fake head, make sure tag not visible afterwards
cp .hgtags tags
hg tag -d "1000000 0" last
hg rm .hgtags
hg commit -m "remove" -d "1000000 0"
mv tags .hgtags
hg add .hgtags
hg commit -m "readd" -d "1000000 0"
hg tags
# invalid tags
echo "spam" >> .hgtags
echo >> .hgtags
echo "foo bar" >> .hgtags
echo "$T invalid" | sed "s/..../a5a5/" >> .hg/localtags
hg commit -m "tags" -d "1000000 0"
# report tag parse error on other head
hg up 3
echo 'x y' >> .hgtags
hg commit -m "head" -d "1000000 0"
hg tags
hg tip
# test tag precedence rules
cd ..
hg init t2
cd t2
echo foo > foo
hg add foo
hg ci -m 'add foo' -d '1000000 0' # rev 0
hg tag -d '1000000 0' bar # rev 1
echo >> foo
hg ci -m 'change foo 1' -d '1000000 0' # rev 2
hg up -C 1
hg tag -r 1 -d '1000000 0' -f bar # rev 3
hg up -C 1
echo >> foo
hg ci -m 'change foo 2' -d '1000000 0' # rev 4
hg tags
# test tag removal
hg tag --remove -d '1000000 0' bar
hg tip
hg tags
# test tag rank
cd ..
hg init t3
cd t3
echo foo > foo
hg add foo
hg ci -m 'add foo' -d '1000000 0' # rev 0
hg tag -d '1000000 0' -f bar # rev 1 bar -> 0
hg tag -d '1000000 0' -f bar # rev 2 bar -> 1
hg tag -d '1000000 0' -fr 0 bar # rev 3 bar -> 0
hg tag -d '1000000 0' -fr 1 bar # rev 3 bar -> 1
hg tag -d '1000000 0' -fr 0 bar # rev 4 bar -> 0
hg tags
hg co 3
echo barbar > foo
hg ci -m 'change foo' -d '1000000 0' # rev 0
hg tags
hg tag -d '1000000 0' -r 3 bar # should complain
hg tags