feat: add declaration file (#280)

Co-authored-by: JounQin <[email protected]>

.changeset/moody-teachers-build.md

@@ -0,0 +1,5 @@
+---
+"eslint-config-prettier": patch
+---
+
+feat: add declaration file

.eslintrc.base.js

@@ -114,6 +114,12 @@ module.exports = {
       files: ["test-lint/@stylistic__ts.ts"],
       extends: ["plugin:@stylistic/ts/all-extends"],
     },
+    {
+      files: ["**/*.d.ts"],
+      rules: {
+        strict: "off",
+      },
+    },
   ],
   settings: {
     react: {

.github/workflows/release.yml

@@ -32,6 +32,7 @@ jobs:
           commit: "chore: release eslint-config-prettier"
           title: "chore: release eslint-config-prettier"
           publish: npm run release
+          version: npm run version
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

eslint.config.js

@@ -34,4 +34,10 @@ module.exports = [
       },
     })
   ),
+  {
+    files: ["**/*.d.ts"],
+    rules: {
+      strict: "off",
+    },
+  },
 ];

index.d.ts

@@ -0,0 +1,7 @@
+type Config = {
+  rules: Record<string, 0 | "off">;
+};
+
+declare const config: Config;
+
+export = config;

package.json

@@ -7,6 +7,7 @@
   "repository": "prettier/eslint-config-prettier",
   "bin": "build/bin/cli.js",
   "main": "build/index.js",
+  "types": "build/index.d.ts",
   "type": "commonjs",
   "files": [
     "build"
@@ -36,7 +37,8 @@
     "test:with-env": "npm run test:eslint && npm run test:jest && npm run test:cli-sanity && npm run test:cli-sanity-warning",
     "test": "npm run test:prettier && ESLINT_CONFIG_PRETTIER_NO_DEPRECATED=true npm run test:with-env && ESLINT_USE_FLAT_CONFIG=false npm run test:with-env && npm run build",
     "build": "node scripts/build.js",
-    "release": "npm run build && clean-pkg-json && changeset publish"
+    "release": "npm run build && clean-pkg-json && changeset publish",
+    "version": "changeset version && npm i"
   },
   "devDependencies": {
     "@babel/eslint-parser": "7.23.3",

scripts/build.js

@@ -8,6 +8,7 @@ const BUILD = path.join(DIR, "build");
 
 const FILES_TO_COPY = [
   { src: "index.js" },
+  { src: "index.d.ts" },
   { src: "prettier.js" },
   ...fs
     .readdirSync(path.join(DIR, "bin"))