build: integrate commitlint (#46)

Integrate commitlint into the repository pre-commit check so commit messages can trigger semantic-release properly

Co-authored-by: Simon Chen <[email protected]>

.github/workflows/ci.yml

@@ -20,6 +20,8 @@ jobs:
       run: npm run lint
     - name: Test
       run: npm run test
+    - name: commit-lint
+      run: git log -1 --pretty=format:"%s" | npx commitlint
     - name: Build
       run: npm run build
     - name: i18n_extract

commitlint.config.js

@@ -0,0 +1,33 @@
+const Configuration = {
+  /*
+   * Resolve and load @commitlint/config-conventional from node_modules.
+   * Referenced packages must be installed
+   */
+  extends: ['@commitlint/config-conventional'],
+  /*
+   * Any rules defined here will override rules from @commitlint/config-conventional
+   */
+  rules: {
+    'body-max-line-length': [2, 'always', Infinity],
+    'subject-case': [
+      2,
+      'never',
+      [],
+    ],
+  },
+  /*
+   * Functions that return true if commitlint should ignore the given message.
+   */
+  ignores: [(commit) => commit === ''],
+  /*
+   * Whether commitlint uses the default ignore rules.
+   */
+  defaultIgnores: true,
+  /*
+   * Custom URL to show upon failure
+   */
+  helpUrl:
+    'https://github.com/conventional-changelog/commitlint/#what-is-commitlint',
+};
+
+module.exports = Configuration;