Allow sorting side-effect imports?

The goal

To align with VSCode’s “Organize Imports” and the old TSLint sort order by using ESLint and this plugins’ options.

rules: {
  imports: ["error", { groups: /* something that outputs example below */ }]
}

Example output

import '@scoped/package/a.css';
import { a } from '@scoped/package/b';
import '@scoped/package/c.css';
import 'package/d.css';
import { e } from 'package/e';
import 'package/f.css';
import './relative/path/g';
import { h } from './relative/path/h';
import './relative/path/i';

Essentially the only thing that matters for sorting each line is the import path.

The issue

Side-effect imports are sorted separately and can’t be customised https://github.com/lydell/eslint-plugin-simple-import-sort/blob/main/src/shared.js#L709

// If both items are side effect imports, keep their original order.
itemA.isSideEffectImport && itemB.isSideEffectImport
  ? itemA.index - itemB.index
  : // If one of the items is a side effect import, move it first.
  itemA.isSideEffectImport
  ? -1
  : itemB.isSideEffectImport
  ? 1
  : // ... rest of compare function

There is currently no way to configure groups so that they output like the example above.

Proposed solution

To remove the special resolution of isSideEffectImport and instead rely more on groups.

Removing lines 709 to 716 makes it possible to achieve the goal above with the following configuration:

"groups": [
  // \\0? makes named vs unnamed imports irrelevant
  [
    "^\\0?[^\\.]", // non-relative paths (packages)
    "^\\0?\\." // relative paths
  ]
]

Default behaviour will stay exactly the same.

Explicit configuration is still possible with:

"groups": [
  // side effect imports
  ["^\\0"],
  // ... all the rest
]

[haxxxton]

@lydell KING! thank you sir, that final set of regex’s was exactly what i was looking for! I really need to up my regex-fu! thank you sir ❤️

[lydell]

But hey, I just realized: Can’t you already do what you want? Use a regex like '^\\u0000[^.]' to match side effect imports from packages, and '^\\u0000\\.' to match local ones (the regexes might need tweaking)?