view tests/notcapable @ 16838:d37d221334be

revset: cache alias expansions

Caching has no performance effect on the revset aliases which triggered
the recent recursive evaluation bug. I wrote it not to feel bad about
expanding several times the same complicated expression.

# Disable the $CAP wire protocol capability.

if test -z "$CAP"
then
    echo "CAP environment variable not set."
fi

cat > notcapable-$CAP.py << EOF
from mercurial import extensions, repo
def extsetup():
    extensions.wrapfunction(repo.repository, 'capable', wrapper)
def wrapper(orig, self, name, *args, **kwargs):
    if name in '$CAP'.split(' '):
        return False
    return orig(self, name, *args, **kwargs)
EOF

echo '[extensions]' >> $HGRCPATH
echo "notcapable-$CAP = `pwd`/notcapable-$CAP.py" >> $HGRCPATH