feat(metadata): Add YAML check/format npm scripts.

.github/workflows/hardware-metadata-validation.yml

@@ -15,6 +15,17 @@ on:
       - "app/scripts/west_commands/metadata.py"
 
 jobs:
+  check-metadata-format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
+      - uses: bahmutov/npm-install@v1
+        with:
+          working-directory: app
+      - name: Prettier Check
+        run: npm run prettier:check
+        working-directory: app
   validate-metadata:
     runs-on: ubuntu-latest
     container:
@@ -30,6 +41,5 @@ jobs:
       - name: Export Zephyr CMake package (west zephyr-export)
         run: west zephyr-export
       - name: Validate Hardware Metadata
-        run: |
-          cd app
-          west metadata check
+        working-directory: app
+        run: west metadata check

app/.gitignore

@@ -1 +1,2 @@
 build/
+node_modules/

app/.prettierrc.js

@@ -0,0 +1,3 @@
+module.exports = {
+    endOfLine: "auto",
+};

app/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "zmkfirmware",
+  "version": "1.0.0",
+  "description": "ZMK Firmware tooling",
+  "private": "true",
+  "scripts": {
+    "prettier:check": "prettier --check boards/**/*.yml",
+    "prettier:format": "prettier --write boards/**/*.yml"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/zmkfirware/zmk.git"
+  },
+  "author": "ZMK Contributors",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/zmkfirware/zmk/issues"
+  },
+  "homepage": "https://zmk.dev/",
+  "devDependencies": {
+    "prettier": "^2.4.0"
+  }
+}