How to add script with generated [contenthash] from public folder?

[itrelease]

In my next.config.js I have:

config.plugins.push(
  new WebpackCopyPlugin([
      {
        from: path.join(__dirname, 'src/i18n/phrases/*.json'),
        to: path.join(
          __dirname,
          'public/static/i18n/[name]-[contenthash].[ext]'
        ),
        flatten: true,
    },
  ])
);

it copies i18n files (en.json, es.json, etc) to a public folder appending [contenthash]. So the question is how to get access to [contenthash] part in my custom _document.js file?

[itrelease]

Found a workaround for this with using buildId prop:

// next.config.js
module.exports = {
  webpack: (config, { buildId }) => {
    config.resolve.alias['@src'] = path.resolve(__dirname, 'src');

    config.plugins.push(
      new WebpackCopyPlugin([
        {
          from: path.join(__dirname, 'src/i18n/phrases/*.js'),
          to: path.join(
            __dirname,
            buildId === 'development'
              ? `public/static/i18n/[name].[ext]`
              : `public/static/i18n/[name]-${buildId}.[ext]`
          ),
          flatten: true,
        },
      ])
    );
  }
}

and in _document.js:

class MyDocument extends Document {
  ...

  render() {
    const { __NEXT_DATA__ } = this.props;
    const isProduction = __NEXT_DATA__.buildId !== 'development';

    return (
      ...
      <script
            id="i18n"
            type="text/javascript"
            src={`/static/i18n/${
              isProduction ? `en-${__NEXT_DATA__.buildId}` : 'en'
            }.js`}
      />
      ...
    );
  }
}