git-consecutive-blanks

#!/usr/bin/env bash

set -eo pipefail

function main {
    local threshold="${1:-2}"
    local -r pattern="${2:-*}"

    ((threshold++))

    count=$( (pcre2grep -IO "" --line-number -M "\n{$threshold}" $(git ls-files "$pattern") || true) \
            | cut -d ":" -f 1,2 \
            | tee /dev/tty \
            | wc -l)

    return $(( count < 255 ? count : 255 ))
}

if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
    main "$@"
fi