fix: add commitlint as husky pre-commit hook and ci check (#25)

.github/workflows/build.yml

@@ -21,10 +21,25 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
 
-      - run: npm ci
-      - run: npm run lint
-      - run: npm run build
-      - run: npm run test
+      - name: install dependencies
+        run: npm ci --ignore-scripts # don't install husky hooks when in ci
+
+      - name: Validate current commit (last commit) message with commitlint
+        if: github.event_name == 'push'
+        run: npx commitlint --last --verbose
+
+      - name: Validate PR commits messages with commitlint
+        if: github.event_name == 'pull_request'
+        run: npx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose
+
+      - name: lint typescript code
+        run: npm run lint
+
+      - name: build typescript
+        run: npm run build
+
+      - name: run unit test
+        run: npm run test
 
       ### Integration tests
 

.husky/commit-msg

@@ -0,0 +1 @@
+npm run commitlint ${1}

commitlint.config.js

@@ -0,0 +1,7 @@
+export default {
+  extends: ['@commitlint/config-conventional'],
+  rules: {
+    "scope-case": [2, "always", ["lower-case", "upper-case", "camel-case"]],
+    "footer-max-line-length": [2 ,"always", [256]]
+  }
+};