chore(release): enforce CHANGELOG entry via preversion script

Author: luisfer

package.json

@@ -12,6 +12,7 @@
     "dev": "tsc --watch",
     "start": "node dist/cli.js",
     "test": "jest",
+    "preversion": "node scripts/check-changelog.js",
     "test:watch": "jest --watch",
     "lint": "eslint 'src/**/*.ts'",
     "lint:fix": "eslint 'src/**/*.ts' --fix",

scripts/check-changelog.js

@@ -0,0 +1,25 @@
+#!/usr/bin/env node
+const fs = require('fs');
+const path = require('path');
+
+function fail(msg) {
+  console.error(`❌ CHANGELOG check failed: ${msg}`);
+  process.exit(1);
+}
+
+try {
+  const pkgPath = path.join(process.cwd(), 'package.json');
+  const changelogPath = path.join(process.cwd(), 'CHANGELOG.md');
+  const pkg = JSON.parse(fs.readFileSync(pkgPath, 'utf-8'));
+  const version = pkg.version;
+  const changelog = fs.readFileSync(changelogPath, 'utf-8');
+  const header = new RegExp(`^##\\s+${version}\\s+—`, 'm');
+  if (!header.test(changelog)) {
+    fail(`CHANGELOG.md does not contain a header for version ${version}`);
+  }
+  console.log(`✓ CHANGELOG contains entry for ${version}`);
+} catch (e) {
+  fail(e && e.message ? e.message : String(e));
+}
+
+