#!/bin/bash
set -euo pipefail
IFS=
usage() {
    echo "$0 bad good modulename..."
    echo "  Run git bisect, with bad as the bad commit (e.g. HEAD),"
    echo "  good as the good commit, and running meta/test-modules"
    echo "  with the given modulenames as the test."
    echo "  Run \`git bisect reset\` as usual when you're done."
    exit 1
}
if [ $# -lt 3 ]; then
    usage
fi
bad="$1"
good="$2"
shift
shift
set -x
git bisect start   
git bisect bad "$bad"
git bisect good "$good"
git bisect run meta/test-modules "$@"