discovery: handle deletion of 'wireproto' module
Mercurial commit b4d85bc122bd. deleted the wireproto module and its
contents are now in various other modules, so we can not even do
unchecked imports of it now.
#!/bin/bash
set -euox pipefail
unset GREP_OPTIONS
NOTOPIC="--config experimental.topic-mode=ignore"
compatbranches=`hg branches --quiet | grep 'mercurial-' | grep -v ':' | sort -n --reverse`
prev='stable'
for branch in $compatbranches; do
hg up $branch
hg merge $prev
hg commit -m "test-compat: merge $prev into $branch"
prev=$branch
done