if ! good_tree_info="$(grep "^$(git rev-parse $CI_COMMIT^{tree}) " "$good_trees_file")"
then
# Haven't seen this tree yet, or no cached good trees file yet.
if ! good_tree_info="$(grep "^$(git rev-parse $CI_COMMIT^{tree}) " "$good_trees_file")"
then
# Haven't seen this tree yet, or no cached good trees file yet.