fix(options): use filename mutated after instantiation

[lbennett-stacki]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

A minor update from 0.6.0 to 0.7.0 broke my webpacker configuration. :(

In 13e9cbf (#381) the moduleFilename function was added. This change broke webpacker configurations that set a non-default filename option.

To explain further, if you view the webpacker plugins docs, options can be mutated after construction.

Excerpt from docs:

// Get a pre-configured plugin
const manifestPlugin = environment.plugins.get('Manifest')
manifestPlugin.options.writeToFileEmit = false

So, previously, I could set a filename like so:

environment.plugins.get('MiniCssExtractPlugin').options.filename = 'static-[contenthash].css'

but after 13e9cbf this was broken and instead you must set moduleFilename: () => yourFilename to fix it.

Breaking Changes

None

Additional Info

[jsf-clabot]

All committers have signed the CLA.

[mistic]

That LGTM

/CC @evilebottnawi

[NoClipDigital]

👌

[alexander-akait]

Anyway, i am recommend don't do this, due webpack@5 will have built-in cache and using this approach is not good idea