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This change adds support for ESLint's new Flat config system. It maintains backwards compatibility with eslintrc style configs as well.
To achieve this, we're now dynamically creating flat configs on a new `flatConfigs` export. I was a bit on the fence about using this convention, or the other convention that's become prevalent in the community: adding the flat configs directly to the `configs` object, but with a 'flat/' prefix. I like this better, since it's slightly more ergonomic when using it in practice. e.g. `...importX.flatConfigs.recommended` vs `...importX.configs['flat/recommended']`, but i'm open to changing that.
Example Usage
```js
import importPlugin from 'eslint-plugin-import';
import js from '@eslint/js';
import tsParser from '@typescript-eslint/parser';
export default [
js.configs.recommended,
importPlugin.flatConfigs.recommended,
importPlugin.flatConfigs.react,
importPlugin.flatConfigs.typescript,
{
files: ['**/*.{js,mjs,cjs,jsx,mjsx,ts,tsx,mtsx}'],
languageOptions: {
parser: tsParser,
ecmaVersion: 'latest',
sourceType: 'module',
},
ignores: ['eslint.config.js'],
rules: {
'no-unused-vars': 'off',
'import/no-dynamic-require': 'warn',
'import/no-nodejs-modules': 'warn',
},
},
];
```
Note: in order to fill a gap in a future API gap for the `no-unused-module`, this takes advantage of a *proposed* new API on the ESLint context, that currently only exists in a POC state (unreleased).
Closes import-js#2556- Loading branch information
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| /** | ||
| * This is intended to provide similar capability as the sync api from @nodelib/fs.walk, until `eslint-plugin-import` | ||
| * is willing to modernize and update their minimum node version to at least v16. I intentionally made the | ||
| * shape of the API (for the part we're using) the same as @nodelib/fs.walk so that that can be swapped in | ||
| * when the repo is ready for it. | ||
| */ | ||
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|
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| import path from 'path'; | ||
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|
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| /** | ||
| * Do a comprehensive walk of the provided src directory, and collect all entries. Filter out | ||
| * any directories or entries using the optional filter functions. | ||
| * @param {string} root - path to the root of the folder we're walking | ||
| * @param {{ deepFilter?: ({name: string, path: string, dirent: Dirent}) => boolean, entryFilter?: ({name: string, path: string, dirent: Dirent}) => boolean }} options | ||
| * @param {{name: string, path: string, dirent: Dirent}} currentEntry - entry for the current directory we're working in | ||
| * @param {{name: string, path: string, dirent: Dirent}[]} existingEntries - list of all entries so far | ||
| * @returns {{name: string, path: string, dirent: Dirent}[]} an array of directory entries | ||
| */ | ||
| export const walkSync = (root, options, currentEntry, existingEntries) => { | ||
| const { readdirSync } = require('node:fs'); | ||
|
|
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| // Extract the filter functions. Default to evaluating true, if no filter passed in. | ||
| const { deepFilter = () => true, entryFilter = () => true } = options; | ||
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| let entryList = existingEntries || []; | ||
| const currentRelativePath = currentEntry ? currentEntry.path : '.'; | ||
| const fullPath = currentEntry ? path.join(root, currentEntry.path) : root; | ||
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| const dirents = readdirSync(fullPath, { withFileTypes: true }); | ||
| for (const dirent of dirents) { | ||
| const entry = { | ||
| name: dirent.name, | ||
| path: path.join(currentRelativePath, dirent.name), | ||
| dirent, | ||
| }; | ||
| if (dirent.isDirectory() && deepFilter(entry)) { | ||
| entryList.push(entry); | ||
| entryList = walkSync(root, options, entry, entryList); | ||
| } else if (dirent.isFile() && entryFilter(entry)) { | ||
| entryList.push(entry); | ||
| } | ||
| } | ||
|
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| return entryList; | ||
| }; |
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