freesewing/packages/plugin-buttons/src/index.js

import button from "./button";
import buttonhole from "./buttonhole";
import snaps from "./snaps";
import { name, version } from "../package.json";

export default {
  name: name,
  version: version,
  hooks: {
    preRender: function(svg) {
      if (svg.attributes.get("freesewing:plugin-buttons") === false)
        svg.attributes.set("freesewing:plugin-buttons", version);
      svg.defs += button + buttonhole + snaps;
    }
  }
};