build: lint commit messages so that CHANGELOG can be generated

automatically

.gitignore

@@ -1,4 +1,5 @@
 /.settings
+/node_modules/
 /bundle/build/
 /bundle/compiled/
 /bundle/dist/

commitlint.config.js

@@ -0,0 +1,29 @@
+module.exports = {
+    extends: ['@commitlint/config-lerna-scopes'],
+    rules: {
+        'body-leading-blank': [1, 'always'],
+        lang: [1, 'always', 'eng'],
+        'scope-case': [2, 'always', 'lowerCase'],
+        'subject-empty': [2, 'never'],
+        'subject-full-stop': [2, 'never', '.'],
+        'type-case': [2, 'always', 'lowerCase'],
+        'type-empty': [2, 'never'],
+        'type-enum': [
+            2,
+            'always',
+            [
+                'build',
+                'chore',
+                'ci',
+                'docs',
+                'feat',
+                'fix',
+                'perf',
+                'refactor',
+                'revert',
+                'style',
+                'test'
+            ]
+        ]
+    }    
+};