#output.filenameHash

• Type: boolean | string
• Default: true

Configure whether to add a hash value to the filename after the production build.

#Disable hash

By default, output file names include a hash value:

dist/static/css/index.7879e19d.css
dist/static/js/index.18a568e5.js

You can set output.filenameHash to false to disable this behavior:

export default {
  output: {
    filenameHash: false,
  },
};

After rebuilding, the output filenames become:

dist/static/css/index.css
dist/static/js/index.js

#Hash format

The default hash format is contenthash:8, which generates an 8-bit hash based on the content of the file.

You can set output.filenameHash to other formats supported by Rspack and customize the length.

export default {
  output: {
    filenameHash: 'fullhash:16',
  },
};

The optional hash formats are:

• fullhash: The hash value of the entire compilation. If any file changes, the hash values of all output files in the entire project will change.
• chunkhash: The hash value of the chunk. The hash value will only change when the content of the chunk (and its included modules) changes.
• contenthash: The hash value of the file content. The hash value will only change when the content of the file itself changes.

#Notes

• output.filename has a higher priority than output.filenameHash.
• By default, when the target is not web, the hash will not be included in the filename of the output files, such as Node.js bundles.
• By default, the filename in development mode does not include a hash.