- Breaking change: Update engines to Node 10+

- Linting: As per latest eslint config
- Linting: Add `--report-unused-disable-directives` flag
- Linting: Switch to `.eslintrc.js` so can add comments
- CI: Add `travis.yml`
- Testing: Make `nyc` separate script and add it and `lint` to `test` script
- Maintenance: Add `.ncurc.js` config to allow `npm-check-updates` to avoid auto-updating peerDeps.
- npm: Update deps. (esm, ws) and devDeps.

.eslintrc.js

@@ -0,0 +1,43 @@
+'use strict';
+
+module.exports = {
+  extends: 'airbnb/base',
+  overrides: [
+    {
+      files: '.eslintrc.js',
+      parserOptions: {
+        sourceType: 'script'
+      },
+      // airbnb's config here is too inflexible as it prevents strict mode
+      //  even with scripts, so set to `safe`
+      // Changed: https://github.com/airbnb/javascript/pull/1962
+      rules: {
+        strict: ['error', 'safe']
+      }
+    },
+    {
+      files: ['examples/**'],
+      rules: {
+        'no-console': 0
+      }
+    },
+    {
+      files: ['test/**'],
+      env: {
+        mocha: true
+      },
+      globals: {
+        expect: true
+      },
+      rules: {
+        'no-console': 0,
+        // Is otherwise reporting in Atom ESLint linter (though not on command line)
+        'import/no-extraneous-dependencies': 0
+      }
+    }
+  ],
+  rules: {
+    'comma-dangle': 0,
+    'no-param-reassign': 0
+  }
+};

.ncurc.js

@@ -0,0 +1,8 @@
+'use strict';
+
+module.exports = {
+  // Whitelist all for checking besides `peer` which indicates
+  //   somewhat older versions of peer deps. we still support even
+  //   while our devDeps point to a more recent version
+  "dep": "prod,dev,optional,bundle"
+};

.travis.yml

@@ -0,0 +1,33 @@
+language: node_js
+node_js:
+  - 14
+  - 12
+  - 10
+
+notifications:
+  email: false
+
+script:
+  - npm ci
+  - 'if [ -n "${LINT-}" ]; then npm run lint; fi'
+
+before_install:
+  - npm config set depth 0
+
+before_script: >
+  node_version=$(node -v);
+  npm install --no-save "express@${EXPRESS}"
+
+env:
+  matrix:
+    - EXPRESS=4
+    - EXPRESS=5.0.0-alpha.8
+matrix:
+  fast_finish: true
+  include:
+    - node_js: 'lts/*'
+      env: LINT=true
+# If Express exclusions needed by Node version
+#  exclude:
+#    - node_js: 10
+#      env: EXPRESS=7

examples/broadcast.js

@@ -2,7 +2,7 @@ const express = require('express');
 let expressWs = require('..');
 
 expressWs = expressWs(express());
-const app = expressWs.app;
+const { app } = expressWs;
 
 app.ws('/a', (/* ws, req */) => {
 });

examples/params.js

@@ -2,7 +2,7 @@ const express = require('express');
 let expressWs = require('..');
 
 expressWs = expressWs(express());
-const app = expressWs.app;
+const { app } = expressWs;
 
 app.param('world', (req, res, next, world) => {
   req.world = world || 'world';

examples/simple.js

@@ -2,7 +2,7 @@ const express = require('express');
 let expressWs = require('..');
 
 expressWs = expressWs(express());
-const app = expressWs.app;
+const { app } = expressWs;
 
 app.use((req, res, next) => {
   console.log('middleware');

package.json

@@ -6,8 +6,9 @@
   "module": "src/index",
   "scripts": {
     "mocha": "mocha --require esm --require chai/register-expect --timeout 20000 test",
-    "test": "echo 'Blanking out cache for ESM/nyc that can get corrupted by terminated processes...' && rm -Rf ./node_modules/.cache && nyc npm run mocha",
-    "lint": "eslint ."
+    "nyc": "echo 'Blanking out cache for ESM/nyc that can get corrupted by terminated processes...' && rm -Rf ./node_modules/.cache && nyc npm run mocha",
+    "lint": "eslint --report-unused-disable-directives .",
+    "test": "npm run lint && npm run nyc"
   },
   "author": "Henning Morud <[email protected]>",
   "contributors": [
@@ -21,7 +22,7 @@
   ],
   "license": "BSD-2-Clause",
   "engines": {
-    "node": ">=4.5.0"
+    "node": ">=10.0.0"
   },
   "directories": {
     "example": "examples"
@@ -40,19 +41,19 @@
   },
   "homepage": "https://github.com/HenningM/express-ws",
   "dependencies": {
-    "esm": "^3.0.84",
-    "ws": "^6.0.0"
+    "esm": "^3.2.25",
+    "ws": "^7.3.1"
   },
   "peerDependencies": {
     "express": "^4.0.0 || ^5.0.0-alpha.1"
   },
   "devDependencies": {
     "chai": "^4.2.0",
-    "eslint": "^4.19.0",
-    "eslint-config-airbnb": "^15.1.0",
-    "eslint-plugin-import": "^2.12.0",
-    "express": "^5.0.0-alpha.6",
-    "got": "^11.4.0",
+    "eslint": "^7.4.0",
+    "eslint-config-airbnb": "^18.2.0",
+    "eslint-plugin-import": "^2.22.0",
+    "express": "^5.0.0-alpha.8",
+    "got": "^11.5.0",
     "mocha": "^8.0.1",
     "nyc": "^15.1.0"
   }

test/test.js

@@ -1,7 +1,6 @@
 import http from 'http';
 import express from 'express';
 import WebSocket from 'ws';
-// eslint-disable-next-line import/no-extraneous-dependencies
 import got from 'got';
 import expressWs from '../src';
 
@@ -308,18 +307,19 @@ describe('Error handling', () => {
         try {
           ws.send('server response');
         } catch (err) {
-          expect(messages).to.deep.equal([
-            'middleware 1',
-            'middleware 2',
-            'socket',
-            'something',
-          ]);
+          // For `ws` 6, this should be the error
           expect(err.toString()).to.include('WebSocket is not open');
-          ws.terminate(); // Close WS client
-          server.close(); // Close HTTP server underlying WS server
-          expressWsInstance.getWss().close(); // Close WS server
-          done();
         }
+        expect(messages).to.deep.equal([
+          'middleware 1',
+          'middleware 2',
+          'socket',
+          'something',
+        ]);
+        ws.terminate(); // Close WS client
+        server.close(); // Close HTTP server underlying WS server
+        expressWsInstance.getWss().close(); // Close WS server
+        done();
       });
       messages.push('socket');
     });