___perform_parsing()
{
    unset OS_USERNAME
    local credsfile="$HOME/.dtf/private/os/$1.yml"

    if test -z "$1"; then
        echo >&2 "argument expected: OpenStack ID"
        return 1
    fi

    if test ! -f "$credsfile"; then
        echo >&2 "file '$credsfile' not found"
        return 1
    fi

    while read line; do
        if [[ "$line" =~ ^([a-zA-Z0-9_]*):\ ?(.*)$ ]]; then
            key="${BASH_REMATCH[1]}"
            if test "$key" = os_nova_password; then
                key=os_password
            fi
            eval set ${BASH_REMATCH[2]}
            eval export "${key^^}"="\"$@\""
        fi
    done < "$credsfile"
}

unset OS_AUTH_URL OS_PASSWORD OS_TENANT_ID OS_TENANT_NAME OS_USERNAME
___perform_parsing "$@"

# # vi: syntax=sh