Add filename pattern option to allow using contenthash in filenames

Since 5.0.0 it’s possible to add [contenthash] etc. to the publicPath. This allows creation of urls like this:

myweb.tld/assets/[contenthash]/manifest.json`

But this also means that regardless of which file generated by this plugin changed, the hash always changes for all files. Meaning even unchanged files have to be refetched to be cached.

Webpack itself provides filename patterns to allow for file-specific cache busting. E.g:

output: {
  filename: '[name].[contenthash].bundle.js',
  ...
}

It would be great if this could be somehow archived with this plugin as well.

e.g add options for file name generation:

new MiniCssExtractPlugin({
  filenamePattern: '[name].[contenthash].[ext]'
})

this would cover all generated filetypes (manifest, images, …) with a single option.

Related issues: #240

[leevigraham]

You can do this with prefix: ‘assets/[contenthash]/’

This results in the same issue as @jthomaschewski mentioned:

But this also means that regardless of which file generated by this plugin changed, the hash always changes for all files. Meaning even unchanged files have to be refetched to be cached.

I believe what @jthomaschewski wanted was to have the files written using a file pattern:

assets/[name].[contenthash].[ext]

[PeterKottas]

I think this should be reopened or am I missing something?