ci: fail if generated files do not match and add prettier (#28)

* ci: fail if generated files do not match

* ci: add prettier

* ci: add prettier

* chore: format grammar.js

.github/workflows/ci.yaml

@@ -1,23 +1,32 @@
 name: Build/test
 on:
-  push:
-    branches:
-      - "master"
-  pull_request:
+    push:
+        branches:
+            - 'master'
+    pull_request:
 jobs:
-  test:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: true
-      matrix:
-        os: [macos-latest, ubuntu-latest]
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
-        with:
-          python-version: '3.11'
-      - uses: actions/setup-node@v3
-        with:
-          node-version: '18'
-      - run: npm install
-      - run: npm test
+    test:
+        runs-on: ${{ matrix.os }}
+        strategy:
+            fail-fast: true
+            matrix:
+                os: [macos-latest, ubuntu-latest]
+        steps:
+            - uses: actions/checkout@v3
+            - uses: actions/setup-python@v4
+              with:
+                  python-version: '3.11'
+            - uses: actions/setup-node@v3
+              with:
+                  node-version: '18'
+            - run: npm install
+            - name: generate grammar
+              run: npm run build
+            - name: check for uncommited changes
+              run: git diff --exit-code
+            - run: npm test
+    prettier:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v3
+            - run: npx prettier --check *.js

grammar.js

@@ -1,3 +1,3 @@
-const make_grammar = require('./make_grammar');
+const make_grammar = require('./make_grammar')
 
-module.exports = make_grammar('gotmpl');
+module.exports = make_grammar('gotmpl')

package.json

@@ -15,7 +15,8 @@
         "nan": "^2.22.0"
     },
     "devDependencies": {
-        "tree-sitter-cli": "^0.24.7"
+        "tree-sitter-cli": "^0.24.7",
+        "prettier": "^3.4.2"
     },
     "scripts": {
         "build": "tree-sitter generate && node-gyp build && npm run build-helm",