tests/notcapable

merge: if DELETED_CHANGED and GET are in actions, choose DELETED_CHANGED

ACTION_GET represents that either the file is created on remote or it's newer on
the remote side. However, since we have a ACTION_DELETE_CHANGED too, it means
the file is not present locally and ACTION_GET is representing that file was
created on remote.

Having both ACTION_GET and ACTION_DELETED_CHANGED is conflicting because one
says that file was created on remote and other says file has delete-changed
conflicts.

Let's choose ACTION_DELETED_CHANGED which will result in conflicts and make user
choose the right way forward.

# Disable the $CAP wire protocol capability.

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

cat > notcapable-$CAP.py << EOF
from mercurial import extensions, localrepo
from mercurial.interfaces import repository
def extsetup(ui):
    extensions.wrapfunction(repository.peer, 'capable', wrapcapable)
    extensions.wrapfunction(localrepo.localrepository, 'peer', wrappeer)
def wrapcapable(orig, self, name, *args, **kwargs):
    if name in b'$CAP'.split(b' '):
        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