view tests/notcapable @ 31033:861b070d92da

qdiff: migrate to modern pager API

This results in the default pager-attend list being empty. Sadly, we
can't let the code be that way, because some legacy extensions depend
on hooking the pager's attend list at import time (and we'd like to
not break them), and if the list is actually *empty* that triggers
magic behavior in the extension that attends everything. Instead, we
put a long, improbable command name as the only entry in the attend
list.

# Disable the $CAP wire protocol capability.

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

cat > notcapable-$CAP.py << EOF
from mercurial import extensions, peer, localrepo
def extsetup():
    extensions.wrapfunction(peer.peerrepository, 'capable', wrapcapable)
    extensions.wrapfunction(localrepo.localrepository, 'peer', wrappeer)
def wrapcapable(orig, self, name, *args, **kwargs):
    if name in '$CAP'.split(' '):
        return False
    return orig(self, name, *args, **kwargs)
def wrappeer(orig, self):
    # Since we're disabling some newer features, we need to make sure local
    # repos add in the legacy features again.
    return localrepo.locallegacypeer(self)
EOF

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