index.js

const fs = require('fs');
const util = require('@mdi/util');
const { pascalCase } = require('pascal-case');

const meta = util.getMeta(true);

const indexFile = './mdue/src/index.ts';
// Delete old generated file.
if (fs.existsSync(indexFile)) {
  fs.unlinkSync(indexFile);
}

// Write components for each of the icon and expose them.
const components = meta.map((icon) => {
  const name = pascalCase(icon.name);
  return `export const ${name} = /*#__PURE__*/ svgComponent(name, '${icon.path}');`;
});

// Export the vue components from the index.ts.
const indexFileContent = `import { defineComponent, openBlock, createBlock, createVNode, ComponentPublicInstance, VNodeProps, AllowedComponentProps, ComponentCustomProps, ComponentOptionsBase, ComponentOptionsMixin } from 'vue';

// This is here to optimize the type generation performance. All the components have the same type so.
type IconComponent =  (new () => ComponentPublicInstance<{}, {}, {}, {}, {}, Record<string, any>, VNodeProps & AllowedComponentProps & ComponentCustomProps, ComponentOptionsBase<{}, {}, {}, {}, {}, ComponentOptionsMixin, ComponentOptionsMixin, Record<string, any>, string>>) & ComponentOptionsBase<{}, {}, {}, {}, {}, ComponentOptionsMixin, ComponentOptionsMixin, Record<string, any>, string> & {
  props?: undefined;
} & ThisType<ComponentPublicInstance<{}, {}, {}, {}, {}, Record<string, any>, Readonly<{}>, ComponentOptionsBase<{}, {}, {}, {}, {}, ComponentOptionsMixin, ComponentOptionsMixin, Record<string, any>, string>>>;

const svgCommonProps = {
  xmlns: 'http://www.w3.org/2000/svg',
  'xmlns:xlink': 'http://www.w3.org/1999/xlink',
  version: '1.1',
  fill: 'currentColor',
  height: '1em',
  width: '1em',
  viewBox: '0 0 24 24',
};

const vnode = (path: string) => createVNode('path', { d: path }, null, -1 /* HOISTED */);

const svgComponent = (name: string, path: string): IconComponent => defineComponent({
  name,
  render: () => {
    return (openBlock(), createBlock('svg', svgCommonProps, [vnode(path)]));
  },
});

${components.join('\n')}
`;
fs.writeFileSync(indexFile, indexFileContent);