Disable file chunking with CRACO

Question

I am trying to figure out how to use CRACO (https://github.com/gsoft-inc/craco) to disable file chunking in create react app.

I have created the following craco.config.js:

// craco.config.js
module.exports = {
  output: {
    fileName: 'static/js/bundle.js',
  },
}

But it doesn't have any effect. What should the config look like to disable file chunking in CRA with CRACO?

Polymerous

Answer 1

EDIT: To disable chunking completely I believe this might do it.
Source: https://github.com/facebook/create-react-app/issues/5306#issuecomment-650737697

// craco.config.js
module.exports = {
  webpack: {
    configure: {
      optimization: {
        runtimeChunk: false,
        splitChunks: {
          chunks(chunk) {
            return false
          },
        },
      },
    },
  },
}

---

ORIGNIAL: Maybe this could help?

module.exports = {
  webpack: {
    configure: {
      output: {
        filename: 'static/js/bundle.js',
      },
      optimization: {
        runtimeChunk: false,
        splitChunks: {
          chunks: 'all',
          cacheGroups: {
            default: false,
            vendors: false,
            // vendor chunk
          },
        },
      },
    },
  },
  plugins: [
    {
      plugin: require('craco-plugin-scoped-css'),
    },
  ],
}

Sigil

Thanks I now have a main bundle file but I am still getting 1 chunk file 1.hash.chunk.js. Any way to find out what this is from? – Polymerous

@Polymerous I've updated the answer with a new solution, please let me know how it goes. – Sigil

Thanks, the edit still gave one chunk file but reading the linked github thread had answer that this file is being created by reportWebVitals. Commenting that out results in a single bundle file – Polymerous

@Polymerous nice one! – Sigil

amazeballs! You saved my bacon. AFAICT craco isn't updating the serviceworker __WB_MANIFEST valriable with more than one chunk! – Guiscard

actually this solution continues to have the wrong values for WB_MANIFEST – Guiscard

Answer 2

follow the new solution in the github comments. I use this in my craco.config.cjs:

module.exports = {
  webpack: {
    configure: {
      plugins: [
        new webpack.optimize.LimitChunkCountPlugin({
          maxChunks: 1,
        })
      ]
    }
  },
  plugins: [{ plugin: CracoEsbuildPlugin }]
};

It works at @craco/craco 7.0.0

Neilson