bump-version-function.sh

# dumb function to replace setuptools-scm in python packaging

get_version () {
    if hash docker 2>/dev/null; then
        git_version=$(docker run --rm -v $(pwd):/git alpine/git describe --tags --long)
    else
        git_version=$(git describe --tags --long)
    fi

    tag=$(echo ${git_version} | grep -oE '[0-9]+\.[0-9]+\.[0-9]+')
    dev=$(echo ${git_version} | grep -oE '\-[0-9]+\-' | tr -d '-')
    hash=$(echo ${git_version} | grep -oE '\-[a-z0-9]+$' | tr -d '-')

    if [ $dev -eq "0" ]; then
        version="$tag"
    else
        version="$tag.dev$dev+$hash"
    fi
    echo $version
}