feat: support cjs and esm both by tshy

.eslintrc

@@ -1,5 +1,6 @@
 {
   "extends": [
-    "eslint-config-egg"
+    "eslint-config-egg/typescript",
+    "eslint-config-egg/lib/rules/enforce-node-prefix"
   ]
 }

.github/workflows/nodejs.yml

@@ -3,7 +3,6 @@ name: CI
 on:
   push:
     branches: [ master ]
-
   pull_request:
     branches: [ master ]
 
@@ -13,4 +12,6 @@ jobs:
     uses: node-modules/github-actions/.github/workflows/node-test.yml@master
     with:
       os: 'ubuntu-latest, macos-latest, windows-latest'
-      version: '14, 16, 18, 20'
+      version: '18.19.0, 18, 20, 22'
+    secrets:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/release.yml

@@ -10,5 +10,3 @@ jobs:
     secrets:
       NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
       GIT_TOKEN: ${{ secrets.GIT_TOKEN }}
-    with:
-      checkTest: false

.gitignore

@@ -14,3 +14,6 @@ results
 node_modules
 npm-debug.log
 coverage/
+.tshy*
+.eslintcache
+dist

LICENSE

@@ -0,0 +1,22 @@
+MIT License
+
+Copyright (c) 2015-present node-modules and other contributors.
+Copyright (c) 2014 - 2015 fengmk2 <[email protected]> and other contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -25,84 +25,45 @@ npm install sendmessage --save
 
 ### master.js
 
-```js
-var childprocess = require('child_process');
-var sendmessage = require('sendmessage');
+```ts
+import { fork } from 'node:child_process';
+import sendmessage from 'sendmessage';
+
+const worker = fork('./worker.js');
 
-var worker = childprocess.fork('./worker.js');
-sendmessage(worker, {hi: 'this is a message to worker'});
+sendmessage(worker, { hi: 'this is a message to worker' });
 ```
 
 ### worker.js
 
-```js
-var sendmessage = require('sendmessage');
+```ts
+import sendmessage from 'sendmessage';
 
-sendmessage(process, {hello: 'this is a message to master'});
+sendmessage(process, { hello: 'this is a message to master' });
 ```
 
 ## API
 
-### #sendmessage(childprocess, message)
+### #sendmessage(childProcess, message)
 
 Send a cross process message.
 If a process is not child process, this will just call `process.emit('message', message)` instead.
 
-- childprocess: child process instance
+- childProcess: child process instance
 - message: the message need to send
 
 ```js
-sendmessage(process, {hello: 'this is a message to master'});
+sendmessage(process, { hello: 'this is a message to master' });
 ```
 
 You can switch to `process.emit('message', message)` using `process.env.SENDMESSAGE_ONE_PROCESS`
 
-## Test
-
-```bash
-npm install
-npm test
-```
-
-### Coverage
-
-```bash
-npm run ci
-```
-
 ## License
 
-(The MIT License)
-
-Copyright (c) 2014 - 2015 fengmk2 <[email protected]> and other contributors
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-'Software'), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-<!-- GITCONTRIBUTOR_START -->
+[MIT](LICENSE)
 
 ## Contributors
 
-|[<img src="https://avatars.githubusercontent.com/u/156269?v=4" width="100px;"/><br/><sub><b>fengmk2</b></sub>](https://github.com/fengmk2)<br/>|[<img src="https://avatars.githubusercontent.com/u/360661?v=4" width="100px;"/><br/><sub><b>popomore</b></sub>](https://github.com/popomore)<br/>|[<img src="https://avatars.githubusercontent.com/u/32174276?v=4" width="100px;"/><br/><sub><b>semantic-release-bot</b></sub>](https://github.com/semantic-release-bot)<br/>|[<img src="https://avatars.githubusercontent.com/u/7581901?v=4" width="100px;"/><br/><sub><b>sjfkai</b></sub>](https://github.com/sjfkai)<br/>|
-| :---: | :---: | :---: | :---: |
-
-
-This project follows the git-contributor [spec](https://github.com/xudafeng/git-contributor), auto updated at `Tue Jun 13 2023 20:42:15 GMT+0800`.
+[![Contributors](https://contrib.rocks/image?repo=node-modules/sendmessage)](https://github.com/node-modules/sendmessage/graphs/contributors)
 
-<!-- GITCONTRIBUTOR_END -->
+Made with [contributors-img](https://contrib.rocks).

package.json

@@ -1,32 +1,36 @@
 {
   "name": "sendmessage",
   "version": "2.0.0",
+  "engines": {
+    "node": ">= 18.19.0"
+  },
   "description": "Send a cross process message if message channel is connected.",
-  "main": "index.js",
-  "files": [
-    "index.js"
-  ],
   "scripts": {
-    "test": "mocha --exit -t 5000 test/*.test.js",
+    "lint": "eslint --cache src --ext .ts",
+    "pretest": "npm run prepublishOnly && attw --pack",
+    "test": "npm run lint && mocha --exit -t 5000 test/*.test.js",
     "ci": "c8 -r lcov -r text -r text-summary npm test",
-    "lint": "eslint .",
-    "contributors": "git-contributor"
+    "prepublishOnly": "tshy && tshy-after"
   },
   "dependencies": {},
   "devDependencies": {
-    "c8": "^7.14.0",
-    "eslint": "^8.42.0",
-    "eslint-config-egg": "^12.2.1",
-    "git-contributor": "^2.1.5",
-    "mm": "^3.3.0",
-    "mocha": "^10.2.0",
-    "should": "*"
+    "@arethetypeswrong/cli": "^0.15.3",
+    "@eggjs/tsconfig": "1",
+    "@types/mocha": "10",
+    "@types/node": "20",
+    "c8": "^10.1.2",
+    "eslint": "8",
+    "eslint-config-egg": "13",
+    "mm": "3",
+    "mocha": "^10.4.0",
+    "tshy": "1",
+    "tshy-after": "1",
+    "typescript": "5"
   },
   "homepage": "https://github.com/node-modules/sendmessage",
   "repository": {
     "type": "git",
-    "url": "git://github.com/node-modules/sendmessage.git",
-    "web": "https://github.com/node-modules/sendmessage"
+    "url": "git://github.com/node-modules/sendmessage.git"
   },
   "bugs": {
     "url": "https://github.com/node-modules/sendmessage/issues"
@@ -38,9 +42,34 @@
     "message",
     "channel closed"
   ],
-  "engines": {
-    "node": ">= 14.17.0"
-  },
   "author": "fengmk2 <[email protected]> (https://github.com/fengmk2)",
-  "license": "MIT"
+  "license": "MIT",
+  "type": "module",
+  "tshy": {
+    "exports": {
+      ".": "./src/index.ts",
+      "./package.json": "./package.json"
+    }
+  },
+  "exports": {
+    ".": {
+      "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"
+      }
+    },
+    "./package.json": "./package.json"
+  },
+  "files": [
+    "dist",
+    "src"
+  ],
+  "types": "./dist/commonjs/index.d.ts",
+  "main": "./dist/commonjs/index.js"
 }

index.js → src/index.ts

@@ -1,46 +1,70 @@
-const { isMainThread, parentPort } = require('worker_threads');
+import { debuglog } from 'node:util';
+import { isMainThread, parentPort } from 'node:worker_threads';
+import { EventEmitter } from 'node:events';
+
+const debug = debuglog('sendmessage');
 
 let IS_NODE_DEV_RUNNER = /node\-dev$/.test(process.env._ || '');
 if (!IS_NODE_DEV_RUNNER && process.env.IS_NODE_DEV_RUNNER) {
   IS_NODE_DEV_RUNNER = true;
 }
+debug('IS_NODE_DEV_RUNNER: %s', IS_NODE_DEV_RUNNER);
+
+export interface ChildProcessOrWorker extends EventEmitter {
+  // Worker
+  postMessage?(message: unknown): void;
+  // ChildProcess
+  send?(message: unknown): boolean;
+  connected?: boolean;
+  pid?: number;
+  process?: {
+    connected?: boolean;
+    pid?: number;
+  };
+}
 
-module.exports = function send(child, message) {
+export default function sendmessage(child: ChildProcessOrWorker, message: unknown) {
   if (
     isMainThread // not in worker thread
     && typeof child.postMessage !== 'function' // child is not worker
     && typeof child.send !== 'function'
   ) {
+    debug('child is master process, emit message: %j', message);
     // not a child process
     return setImmediate(child.emit.bind(child, 'message', message));
   }
 
   if (IS_NODE_DEV_RUNNER || process.env.SENDMESSAGE_ONE_PROCESS) {
     // run with node-dev, only one process
     // https://github.com/node-modules/sendmessage/issues/1
+    debug('node-dev: %s or SENDMESSAGE_ONE_PROCESS: %s, emit message: %j',
+      IS_NODE_DEV_RUNNER, process.env.SENDMESSAGE_ONE_PROCESS, message);
     return setImmediate(child.emit.bind(child, 'message', message));
   }
 
   // child is worker
   if (typeof child.postMessage === 'function') {
+    debug('child is worker, postMessage: %j', message);
     return child.postMessage(message);
   }
   // in worker thread
   if (!isMainThread) {
-    return parentPort.postMessage(message);
+    debug('in worker thread, parentPort.postMessage: %j', message);
+    return parentPort!.postMessage(message);
   }
 
   // cluster.fork(): child.process is process
   // childprocess.fork(): child is process
   const connected = child.process ? child.process.connected : child.connected;
 
   if (connected) {
-    return child.send(message);
+    debug('child is process, send: %j', message);
+    return child.send!(message);
   }
 
-  // just log warnning message
+  // just log warning message
   const pid = child.process ? child.process.pid : child.pid;
   const err = new Error('channel closed');
   console.warn('[%s][sendmessage] WARN pid#%s channel closed, nothing send\nstack: %s',
     Date(), pid, err.stack);
-};
+}

test/child.js

@@ -1,5 +1,5 @@
-const { isMainThread, parentPort } = require('worker_threads');
-const sendmessage = require('..');
+import { isMainThread, parentPort } from 'node:worker_threads';
+import sendmessage from '../dist/esm/index.js';
 
 const listener = function(message) {
   if (message.disconnect) {
@@ -11,7 +11,9 @@ const listener = function(message) {
     got: message,
   });
 };
+
 process.on('message', listener);
+
 if (!isMainThread) {
   // worker thread
   parentPort.on('message', listener);