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Unsupported Project Status: Unsupported - The project has reached a stable, usable state but the author(s) have ceased all work on it.

I am no longer maintaining digest-brunch. I switched to Webpack for my front end applications. Contact me (@mutewinter) if you'd like to take over support for digest-brunch.

digest-brunch NPM Version Build Status Dependency Status

A Brunch plugin that appends a unique SHA digest to asset filenames. Allows for far-future caching of assets.

Note: digest-brunch is not compatible with gzip-brunch.


npm install --save digest-brunch

Identify assets that you want to be digested with DIGEST(filename.ext), or a custom pattern of your choosing.

<!DOCTYPE html>
<html lang="en">
  <script src="DIGEST(test.js)"></script> 
  <link rel="stylesheet" href="DIGEST(test.css)">
  <script src="DIGEST(js/nested.js)"></script> 

Run brunch build --production and you'll see something like the following:

Note: digest-brunch can not be run in watch mode. It's only intended for production builds, run once.

<!DOCTYPE html>
<html lang="en">
  <script src="test-75570c26.js"></script> 
  <link rel="stylesheet" href="test-e3eda643.css">
  <script src="js/nested-4df52a0a.js"></script> 

The asset files are also renamed, inside the public folder, to match the names above.


Optional You can override digest-brunch's default options by updating your with overrides.

These are the default settings:

exports.config =
  # ... 
      # A RegExp where the first subgroup matches the filename to be replaced 
      pattern: /DIGEST\(\/?([^\)]*)\)/g
      # After replacing the filename, should we discard the non-filename parts of the pattern? 
      discardNonFilenamePatternParts: yes
      # RegExp that matches files that contain DIGEST references. 
      referenceFiles: /\.html$/
      # How many digits of the SHA1 to append to digested files. 
      precision: 8
      # Force digest-brunch to run in all environments when true. 
      alwaysRun: false
      # Specify an array of environments to run in. 
      environments: ['production']
      # Prepend an asset host URL to the file paths in the reference files. Use an object e.g. {production: ''} 
      prependHost: null
      # Output filename for a JSON manifest of reference file paths and their digest. 
      manifest: ''
      # An array of infixes for alternate versions of files. This is useful when e.g. using retina.js ( (@2x) for high density images. 
      infixes: []


  1. Add some code
  2. Add some tests
  3. Run npm test
  4. Send a pull request