for f in $(find -name '*.re'); do echo $f gofile="${f%.re}.go" gotest="example_test.go" cat "$gofile" \ | egrep -v 'warning: rule .*matches empty string \[-Wmatch-empty-string\]' \ | egrep -v 'warning: tag .* degree of nondeterminism \[-Wnondeterministic-tags\]' \ > "$gotest" # If the autogenerated message appears more than once in the file, then # it must have autogenerated header appended at the end. Cut it off. msg='// Code generated by re2c, DO NOT EDIT.' if [ $(grep -c "$msg" "$gotest") -gt 1 ]; then # Get the line of the second message occurrence. l=$(grep -n "$msg" "$gotest" | tail -n +2 | cut -d : -f 1) # Cut off everything past that line. head -n $l "$gotest" > "$gotest".mod && mv "$gotest".mod "$gotest" fi GO111MODULE=off \ GOPATH="${GOPATH}:$(pwd)/$(dirname $gofile)" \ go test "$gotest" || { echo "*** error ***"; exit 1; } rm -f "$gotest" done echo "All good."