ci: generate code coverage badge

.github/workflows/tests.yml

@@ -16,6 +16,8 @@ jobs:
   main:
     name: Build and run tests
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     steps:
       - run: git config --global core.autocrlf false
       - uses: actions/checkout@v4
@@ -27,4 +29,16 @@ jobs:
           version: 8
           run_install: true
       - run: pnpm build
-      - run: pnpm test
+      - run: pnpm test:coverage
+
+      - name: Publish Results Badge
+        uses: wjervis7/[email protected]
+        if: success() || failure() # run whether steps succeed or not
+        with:
+          result-type: statements
+          upload-badge: false
+
+      - name: Commit badge
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          file_pattern: './badge.svg'  

package.json

@@ -29,6 +29,7 @@
     "release": "pnpm test && pnpm build && changelogen --release --push && pnpm publish",
     "test": "vitest --run --typecheck",
     "test:watch": "vitest",
+    "test:coverage": "vitest --run --typecheck --coverage", 
     "prepare": "husky"
   },
   "dependencies": {
@@ -44,6 +45,7 @@
     "typescript": "~5.7.2",
     "vite": "^6.0.3",
     "vite-plugin-dts": "^4.3.0",
-    "vitest": "2.1.8"
+    "vitest": "2.1.8", 
+    "@vitest/coverage-v8": "2.1.8"
   }
 }