add support for webpack v4 about chunk-manifest-webpack-plugin

[rshackleton]

Experiencing the same issue as mentioned in webpack-contrib/mini-css-extract-plugin#38, have narrowed the issue down to this plugin.

ERROR in chunk main [entry]
main-86b47c44b7412f8548be.css
Cannot read property 'chunkFilename' of undefined

[outshineamaze]

#59 we can use this, which support webpack 4.8.3 +

[fightingtheboss]

I ended up removing my dependency on this package in favour of using HtmlWebpackPlugin with the following configs:

// webpack.config.js
...
  plugins: [
    new HtmlWebpackPlugin({
      filename: 'webpack-common-manifest.json',
      template: 'manifest/template.html',
      inject: false,
    }),
  ],

<%# manifest/template.html %>
<%= JSON.stringify(webpack.assetsByChunkName) %>

This produced a JSON manifest referencing all chunks. You can use any of the other options for HtmlWebpackPlugin to select or exclude chunks, order, etc.

[IAMtheIAM]

Yes please, webpack 4 looks like it has many good features, we need chunk manifest plugin :-)

[iki]

@malectro's branch seems to address this https://github.com/malectro/chunk-manifest-webpack-plugin/tree/webpack-4

[bf]

Any update on this issue? Waiting to use it with webpack 4.

[4lph4-Ph4un]

@fightingtheboss, is some part of that configuration missing? What makes webpack -object accessible from that template.html?

[fightingtheboss]

That variable is provided by HtmlWebpackPlugin while rendering the template. You can see documentation on that at the bottom of this section: https://github.com/jantimon/html-webpack-plugin#writing-your-own-templates

Turns out there's a much simpler solution to this problem though, simply use this plugin: https://github.com/danethurber/webpack-manifest-plugin. No need for a custom template in that case.

[4lph4-Ph4un]

Ah! So it seems! I somehow missed that assuming it was solely for stats -object! Thanks for the trick! :) Unfortunately webpack-manifest-plugin is out of scope for me, since it has another compatibility issues currently related to my other configs (mainly splitChunks: 'all').

[niemyjski]

Can we get one of the pr's for this merged in. Some look better than others... Can't even npm install after upgrading to npm4 or 5.