"[hash]" in publicPath

[mikehardenize]

Hi. This is a feature request. I'd like to be able to use [hash] in publicPath, so I can do:

{
  test:    /\.worker\.js$/,
  loader:  'worker-loader',
  options: {
    name:       'js/webpack-worker.js',
    publicPath: '/cache-[hash]/',
  },
}

I know I can use it in "name", but then the filename changes every time I modify the file, and I don't want to commit a brand new file to git on each change.

I want to use it in publicPath for caching reasons. We map HTTP requests for /cache-ANYTHING/js/ to /js/ so we can set long cache headers.

[michael-ciniawsky]

There is no direct way to do this in worker-loader I can think of atm. The [hash] is computed from the file contents. Maybe create a custom hash of some sort in your webpack.config.js and use this hash as publicPath (e.g per build)

webpack.config.js

const hash = createHash(...)

const config = {
   output: {
     publicPath: `/public/path/${hash}/`
   }
}

The problem here is to find an appropriate cache key to hash and invalidate it when the build changed. I dunno a good solution here either...