[Bug]: purgecss-webpack-plugin only takes the path not the entry

[Tlahey]

Describe the bug

Hello,

I found a bug on the plugin. I wanted to use the only option to use the purge only on my 'style' entry. So I do a stuff like that :

{
      name: 'style',
      entry: {
        style: [ /* .... */ ].filter(Boolean),
        vitamin: [ /* .... */ ].filter(Boolean),
      },
      resolve: { plugins: [teamResolver(team)] },
      module: {
        rules: [  /* ... */  ],
      },
      plugins: [
        // others plugins 
        new MiniCssExtractPlugin({
          filename: 'client/style/[name].[contenthash].css',
        }),
        new PurgeCSSWriterPlugin({
          paths: () => globAll.sync(['./src/**/*'], { nodir: true }),
          only: ['style'],
          // other options
        }),
      ],
    }

So, when I build my project, all the 2 entries are purged ! But only should include only script.

I have check the source code, and I see this :

if (this.options.only) {
    return this.options.only.some((only) => name.includes(only));  // Name is the target path of the file !
}

So, in my case, I have style on all the 2 paths, the plugin will be executed on the 2 files and not the filename (endpoint like the documentation say)

To Reproduce

Create a webpack configuration with 2 entries style and style_hello_world, set the option only to style.

Expected Behavior

The option only should check the entry name and not the full path of the file.

Environment

macos purgecss-webpack-plugin: ^4.1.3

Add any other context about the problem here

context

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