ci: check version has increased on PRs (#12)

.github/scripts/version-check.js

@@ -0,0 +1,22 @@
+const fs = require("fs");
+const { execSync } = require("child_process");
+const semver = require("semver");
+
+// Read the current branch's package.json
+const currentPackage = JSON.parse(fs.readFileSync("package.json", "utf8"));
+const currentVersion = currentPackage.version;
+
+// Fetch the package.json from the main branch
+execSync("git fetch origin main:main");
+const mainPackageJson = execSync("git show main:package.json").toString();
+const mainPackage = JSON.parse(mainPackageJson);
+const mainVersion = mainPackage.version;
+
+if (semver.gt(currentVersion, mainVersion)) {
+  console.log(`Version check passed: ${mainVersion} -> ${currentVersion}`);
+  process.exit(0);
+} else {
+  console.error(`Version check failed: ${mainVersion} -> ${currentVersion}`);
+  console.error("Please increment the version number in package.json");
+  process.exit(1);
+}

.github/workflows/pr-checks.yml

@@ -20,6 +20,9 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
+      - name: Check version
+        run: node .github/scripts/version-check.js
+
       - name: Check Prettifier
         run: npm run pretty:check
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "math-sheets",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "private": true,
   "description": "A simple website for printing math worksheets",
   "scripts": {
@@ -33,6 +33,7 @@
     "@types/node": "^20.14.9",
     "husky": "^9.0.11",
     "prettier": "3.3.2",
+    "semver": "^7.6.2",
     "typescript": "^5.5.2",
     "vite": "^5.3.1"
   }