@quasar/app-webpack/lib/plugins/webpack.html-transform.js

Quasar Framework App CLI with Webpack

const HtmlWebpackPlugin = require('html-webpack-plugin')

module.exports.HtmlTransformPlugin = class HtmlTransformPlugin {
  #transformHtmlFn

  constructor (transformHtmlFn) {
    this.#transformHtmlFn = transformHtmlFn
  }

  apply (compiler) {
    compiler.hooks.compilation.tap('webpack-plugin-html-addons', compilation => {
      const hooks = HtmlWebpackPlugin.getHooks(compilation)

      hooks.beforeEmit.tapAsync('webpack-plugin-html-addons', (data, callback) => {
        this.#transformHtmlFn(data.html)
          .then(html => {
            data.html = html
            callback(null, data)
          })
          .catch(err => {
            callback(err, data)
          })
      })
    })
  }
}