docs: add why section on the top to clarify

close #196

Author: JounQin

.nano-staged.js

@@ -1 +1 @@
-export { default } from '@1stg/lint-staged/tsc'
+export { default } from '@1stg/nano-staged/tsc'

README.md

@@ -14,12 +14,16 @@
 
 This plugin intends to support linting of ES2015+ (ES6+) import/export syntax, and prevent issues with misspelling of file paths and import names. All the goodness that the ES2015+ static module syntax intends to provide, marked up in your editor.
 
+It started as a fork of [`eslint-plugin-import`] using [`get-tsconfig`] to replace [`tsconfig-paths`] and heavy [`typescript`] under the hood, making it faster, through less heavy dependency on Typescript, and cleaner dependencies altogether.
+
 [`eslint-plugin-i` is now `eslint-plugin-import-x`](https://github.com/un-ts/eslint-plugin-import-x/issues/24#issuecomment-1991605123)
 
 **IF YOU ARE USING THIS WITH SUBLIME**: see the [bottom section](#sublimelinter-eslint) for important info.
 
 ## TOC <!-- omit in toc -->
 
+- [Why](#why)
+- [Differences](#differences)
 - [Installation](#installation)
 - [Configuration (legacy: `.eslintrc*`)](#configuration-legacy-eslintrc)
   - [TypeScript](#typescript)
@@ -50,6 +54,34 @@ This plugin intends to support linting of ES2015+ (ES6+) import/export syntax, a
 - [Changelog](#changelog)
 - [License](#license)
 
+## Why
+
+Because a lot of issues can not be fixed easily without API changes, see
+
+- <https://github.com/import-js/eslint-plugin-import/issues/1479>
+- <https://github.com/import-js/eslint-plugin-import/issues/2108>
+- <https://github.com/import-js/eslint-plugin-import/issues/2111>
+
+But [`eslint-plugin-import`] refused to accept BREAKING CHANGES for these issues, so we have to fork it.
+
+And then [`eslint-plugin-import`] claimed to be allowed to update with BREAKING CHANGES at <https://github.com/un-ts/eslint-plugin-import-x/issues/170>,
+but it still doesn't happen or even seems to happen: <https://github.com/import-js/eslint-plugin-import/pull/3091>.
+
+We haven't resolved all the issues yet, but we are working on it which could happen in the next major version (v5): <https://github.com/un-ts/eslint-plugin-import-x/issues/235>.
+
+## Differences
+
+So what's the differences from `eslint-plugin-import` exactly?
+
+- we target [Node `^18.18.0 || ^20.9.0 || >=21.1.0`](https://github.com/un-ts/eslint-plugin-import-x/blob/8b2d6d3b612eb57fb68c3fddec25b02fc622df7c/package.json#L12) + [ESLint `^8.57.0 || ^9.0.0`](https://github.com/un-ts/eslint-plugin-import-x/blob/8b2d6d3b612eb57fb68c3fddec25b02fc622df7c/package.json#L71), while `eslint-plugin-import` targets [Node `>=4`](https://github.com/import-js/eslint-plugin-import/blob/da5f6ec13160cb288338db0c2a00c34b2d932f0d/package.json#L6) and [ESLint `^2 || ^3 || ^4 || ^5 || ^6 || ^7.2.0 || ^8 || ^9`](https://github.com/import-js/eslint-plugin-import/blob/da5f6ec13160cb288338db0c2a00c34b2d932f0d/package.json#L115C16-L115C64)
+- we don't depend on old and outdated dependencies, so we have short dependency depths, see also <https://github.com/un-ts/eslint-plugin-import-x/pull/11>
+- `eslint-plugin-import` uses `tsconfig-paths` + `typescript` itself to load `tsconfig`s while we use the single `get-tsconfig` instead, which is much faster and cleaner
+- `eslint-plugin-import` uses [`resolve`] which doesn't support `exports` field in `package.json` while we use [`unrs-resolver`] instead, which is a [napi-rs] project so it's much faster
+- Our [v3 resolver](./resolvers/README.md#v3) interface shares a single `resolver` instance by default which is used all across resolving chains so it would benefit from caching and memoization out of box
+- ...
+
+The list could be longer in the future, but we don't want to make it too long here, hope you enjoy and let's get started.
+
 ## Installation
 
 ```sh
@@ -662,13 +694,19 @@ Detailed changes for each release are documented in [CHANGELOG.md](./CHANGELOG.m
 [MIT][] © [JounQin][]@[1stG.me][]
 
 [`@typescript-eslint/parser`]: https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser
+[`eslint-plugin-import`]: https://github.com/import-js/eslint-plugin-import
 [`eslint-import-resolver-typescript`]: https://github.com/import-js/eslint-import-resolver-typescript
 [`eslint_d`]: https://www.npmjs.com/package/eslint_d
 [`eslint-loader`]: https://www.npmjs.com/package/eslint-loader
+[`get-tsconfig`]: https://github.com/privatenumber/get-tsconfig
+[`tsconfig-paths`]: https://github.com/dividab/tsconfig-paths
+[`typescript`]: https://github.com/microsoft/TypeScript
+[`unrs-resolver`]: https://github.com/unrs/unrs-resolver
 [`resolve`]: https://www.npmjs.com/package/resolve
 [`externals`]: https://webpack.github.io/docs/library-and-externals.html
 [1stG.me]: https://www.1stG.me
 [JounQin]: https://github.com/JounQin
 [MIT]: http://opensource.org/licenses/MIT
+[napi-rs]: https://github.com/napi-rs/napi-rs
 [node]: https://www.npmjs.com/package/eslint-import-resolver-node
 [webpack]: https://www.npmjs.com/package/eslint-import-resolver-webpack

package.json

@@ -85,7 +85,7 @@
   },
   "devDependencies": {
     "@1stg/commitlint-config": "^5.0.6",
-    "@1stg/lint-staged": "^4.0.9",
+    "@1stg/nano-staged": "^0.1.1",
     "@1stg/prettier-config": "^5.1.4",
     "@1stg/remark-preset": "^3.1.1",
     "@1stg/simple-git-hooks": "^2.0.1",

yarn.lock

@@ -16,31 +16,31 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@1stg/config@npm:^1.0.4, @1stg/config@npm:^1.0.5":
+"@1stg/config@npm:^1.0.5":
   version: 1.0.5
   resolution: "@1stg/config@npm:1.0.5"
   checksum: 10c0/f7e4d638f45ea458fc80763ad26402f4606fd2cf37edb282777ab804b1c8abea866185e8287328754675261dc0bcd741d55a88338844bbf79ddc476dbe9b9503
   languageName: node
   linkType: hard
 
-"@1stg/lint-staged@npm:^4.0.9":
-  version: 4.0.9
-  resolution: "@1stg/lint-staged@npm:4.0.9"
+"@1stg/nano-staged@npm:^0.1.1":
+  version: 0.1.1
+  resolution: "@1stg/nano-staged@npm:0.1.1"
   dependencies:
-    "@1stg/config": "npm:^1.0.4"
-    "@1stg/prettier-config": "npm:^5.0.1"
-    "@1stg/tsconfig": "npm:^3.0.2"
+    "@1stg/config": "npm:^1.0.5"
+    "@1stg/prettier-config": "npm:^5.1.1"
+    "@1stg/tsconfig": "npm:^3.0.3"
     "@pkgr/core": "npm:^0.2.2"
     prettier: "npm:^3.5.3"
   peerDependencies:
-    lint-staged: ">=12.1.0"
-  checksum: 10c0/bc576e1b9e8f0fe260f9b3d00b631baa3e74088c41f03936be7028e549fcc57f0210fc8bdd69e574935653e4315fbc91e3e579776ccd0af95448b7ab15780b87
+    nano-staged: ">=0.8.0"
+  checksum: 10c0/3e0652c36c06e5c14836bf2329eb0da9d8cf6e9bb1a59ef4bc27fb85672eea685936d1b9d997ec56c3673e5458ee8cfaf34a79be701798c29b48b542bb0b0dc0
   languageName: node
   linkType: hard
 
-"@1stg/prettier-config@npm:^5.0.1, @1stg/prettier-config@npm:^5.1.4":
-  version: 5.1.4
-  resolution: "@1stg/prettier-config@npm:5.1.4"
+"@1stg/prettier-config@npm:^5.1.1, @1stg/prettier-config@npm:^5.1.4":
+  version: 5.2.0
+  resolution: "@1stg/prettier-config@npm:5.2.0"
   dependencies:
     "@1stg/config": "npm:^1.0.5"
     "@prettier/plugin-pug": "npm:^3.3.0"
@@ -57,7 +57,7 @@ __metadata:
     prettier-plugin-toml: "npm:^2.0.4"
   peerDependencies:
     prettier: ^3.0.0
-  checksum: 10c0/7950dca3881be0604eff57191b34a0f7efc0377b756225ba7ec969c81ef5cf5db2183d574679c4a1d9224e5597e110d5e78f476aab768e15d434b1c5509bbc3b
+  checksum: 10c0/a9879a9a0a84aac41d6896009f109ca03f2544e836bc388df3c581a45c4b47e2369b2104eaf35f3bff9d22fef6f2c6bb0f9941f1381b89f5ad0388e805cec028
   languageName: node
   linkType: hard
 
@@ -94,7 +94,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@1stg/tsconfig@npm:^3.0.2, @1stg/tsconfig@npm:^3.0.3":
+"@1stg/tsconfig@npm:^3.0.3":
   version: 3.0.3
   resolution: "@1stg/tsconfig@npm:3.0.3"
   peerDependencies:
@@ -6346,7 +6346,7 @@ __metadata:
   resolution: "eslint-plugin-import-x@workspace:."
   dependencies:
     "@1stg/commitlint-config": "npm:^5.0.6"
-    "@1stg/lint-staged": "npm:^4.0.9"
+    "@1stg/nano-staged": "npm:^0.1.1"
     "@1stg/prettier-config": "npm:^5.1.4"
     "@1stg/remark-preset": "npm:^3.1.1"
     "@1stg/simple-git-hooks": "npm:^2.0.1"