feat: support cjs and esm both

.eslintrc

@@ -1,3 +1,6 @@
 {
-  "extends": "eslint-config-egg"
+  "extends": [
+    "eslint-config-egg/typescript",
+    "eslint-config-egg/lib/rules/enforce-node-prefix"
+  ]
 }

.github/workflows/nodejs.yml

@@ -0,0 +1,17 @@
+name: Node.js CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  Job:
+    name: Node.js
+    uses: node-modules/github-actions/.github/workflows/node-test.yml@master
+    with:
+      os: 'ubuntu-latest'
+      version: '18, 20, 22'
+    secrets:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/release.yml

@@ -0,0 +1,13 @@
+name: Release
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+  release:
+    name: Node.js
+    uses: node-modules/github-actions/.github/workflows/node-release.yml@master
+    secrets:
+      NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+      GIT_TOKEN: ${{ secrets.GIT_TOKEN }}

.gitignore

@@ -1,2 +1,4 @@
 node_modules
 coverage
+dist
+.tshy*

README.md

@@ -1,17 +1,33 @@
-## cache-content-type
+# cache-content-type
+
+[![NPM version][npm-image]][npm-url]
+[![Node.js CI](https://github.com/node-modules/cache-content-type/actions/workflows/nodejs.yml/badge.svg)](https://github.com/node-modules/cache-content-type/actions/workflows/nodejs.yml)
+[![Test coverage][codecov-image]][codecov-url]
+[![Known Vulnerabilities][snyk-image]][snyk-url]
+[![npm download][download-image]][download-url]
+
+[npm-image]: https://img.shields.io/npm/v/cache-content-type.svg?style=flat-square
+[npm-url]: https://npmjs.org/package/cache-content-type
+[codecov-image]: https://codecov.io/github/node-modules/cache-content-type/coverage.svg?branch=master
+[codecov-url]: https://codecov.io/github/node-modules/cache-content-type?branch=master
+[snyk-image]: https://snyk.io/test/npm/cache-content-type/badge.svg?style=flat-square
+[snyk-url]: https://snyk.io/test/npm/cache-content-type
+[download-image]: https://img.shields.io/npm/dm/cache-content-type.svg?style=flat-square
+[download-url]: https://npmjs.org/package/cache-content-type
 
 The same as [mime-types](https://github.com/jshttp/mime-types)'s contentType method, but with result cached.
 
-### Install
+## Install
 
 ```bash
 npm i cache-content-type
 ```
 
-### Usage
+## Usage
+
+```ts
+import { getType } from 'cache-content-type';
 
-```js
-const getType = require('cache-content-type');
 const contentType = getType('html');
-assert(contentType === 'text/html; charset=utf-8');
+assert.equal(contentType, 'text/html; charset=utf-8');
 ```

package.json

@@ -1,26 +1,32 @@
 {
   "name": "cache-content-type",
   "version": "1.0.1",
-  "description": "Create a full Content-Type header given a MIME type or extension and catch the result",
-  "main": "index.js",
-  "files": [
-    "index.js"
-  ],
+  "engines": {
+    "node": ">= 18.0.0"
+  },
+  "description": "Create a full Content-Type header given a MIME type or extension and cache the result",
   "scripts": {
-    "test": "egg-bin test",
-    "cov": "egg-bin cov",
-    "ci": "eslint . && npm run cov"
+    "test": "npm run lint -- --fix && egg-bin test",
+    "ci": "npm run lint && egg-bin cov && npm run prepublishOnly",
+    "lint": "eslint src test",
+    "prepublishOnly": "tshy && tshy-after"
   },
   "dependencies": {
-    "mime-types": "^2.1.18",
-    "ylru": "^1.2.0"
+    "mime-types": "^2.1.35",
+    "ylru": "^1.4.0"
   },
   "devDependencies": {
-    "egg-bin": "^4.7.1",
-    "egg-ci": "^1.8.0",
-    "eslint": "^5.1.0",
-    "eslint-config-egg": "^7.0.0",
-    "mm": "^2.2.0"
+    "@eggjs/tsconfig": "^1.3.3",
+    "@types/mime-types": "^2.1.4",
+    "@types/mocha": "^10.0.1",
+    "@types/node": "^20.2.5",
+    "egg-bin": "6",
+    "eslint": "8",
+    "eslint-config-egg": "13",
+    "mm": "3",
+    "tshy": "^1.15.1",
+    "tshy-after": "^1.0.0",
+    "typescript": "^5.4.5"
   },
   "repository": {
     "type": "git",
@@ -31,12 +37,34 @@
     "content-type",
     "lru"
   ],
-  "engines": {
-    "node": ">= 6.0.0"
+  "author": "dead_horse",
+  "license": "MIT",
+  "type": "module",
+  "tshy": {
+    "exports": {
+      "./package.json": "./package.json",
+      ".": "./src/index.ts"
+    }
   },
-  "ci": {
-    "version": "6, 8, 10"
+  "exports": {
+    "./package.json": "./package.json",
+    ".": {
+      "import": {
+        "source": "./src/index.ts",
+        "types": "./dist/esm/index.d.ts",
+        "default": "./dist/esm/index.js"
+      },
+      "require": {
+        "source": "./src/index.ts",
+        "types": "./dist/commonjs/index.d.ts",
+        "default": "./dist/commonjs/index.js"
+      }
+    }
   },
-  "author": "dead_horse",
-  "license": "MIT"
+  "files": [
+    "dist",
+    "src"
+  ],
+  "main": "./dist/commonjs/index.js",
+  "types": "./dist/commonjs/index.d.ts"
 }

src/index.ts

@@ -0,0 +1,18 @@
+import mimeTypes from 'mime-types';
+import LRU from 'ylru';
+
+let typeLRUCache: LRU;
+
+export function getType(type: string): string | false {
+  if (!typeLRUCache) {
+    typeLRUCache = new LRU(100);
+  }
+  let mimeType = typeLRUCache.get<string | false>(type);
+  if (mimeType === undefined) {
+    mimeType = mimeTypes.contentType(type);
+    typeLRUCache.set(type, mimeType);
+  }
+  return mimeType;
+}
+
+export default getType;

test/index.test.ts

@@ -0,0 +1,20 @@
+import { strict as assert } from 'node:assert';
+import mimeTypes from 'mime-types';
+import mm from 'mm';
+import getTypeFromDefault, { getType } from '../src/index.js';
+
+describe('cache-content-type', () => {
+  afterEach(mm.restore);
+
+  it('should work with cache', () => {
+    assert.equal(getType('html'), 'text/html; charset=utf-8');
+    mm.syncError(mimeTypes, 'contentType', 'mock error');
+    assert.equal(getType('html'), 'text/html; charset=utf-8');
+  });
+
+  it('should return false when type not exists', () => {
+    assert.equal(getTypeFromDefault('html-not-exists'), false);
+    mm.syncError(mimeTypes, 'contentType', 'mock error');
+    assert.equal(getTypeFromDefault('html-not-exists'), false);
+  });
+});

tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "extends": "@eggjs/tsconfig",
+  "compilerOptions": {
+    "strict": true,
+    "noImplicitAny": true,
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext"
+  }
+}