function git_short_hash {
    short_hash="$(cached git_short_hash)"

    if [ -z "$short_hash" ]; then
        short_hash="$(git rev-parse --short HEAD)"
    fi

    output "$short_hash"
}

function git_tag_version {
    tag="$(cached git_tag_version)"

    if [ -z "$tag" ]; then
        tag="$(git describe --tags --abbrev=0)"
    fi

    # Remove the potential prefix of `v`
    if [[ $tag =~ ^v[0-9].* ]]; then
        tag="${tag:1}"
    fi
    output "$tag"
}