Upgraded prettier and added to CI (#84)

Author: cliedeman

.github/workflows/lint.yml

@@ -0,0 +1,27 @@
+name: Lint
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [12.x]
+
+    steps:
+      - uses: actions/checkout@v1
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: install dependencies
+        run: yarn install || echo "ignore failure"
+      - name: Prettier
+        run: yarn prettier:check
+        env:
+          CI: true

package.json

@@ -11,7 +11,9 @@
     "prepare": "yarn build && yarn test",
     "build": "yarn tsc",
     "setup": "./pbjs.sh && ./integration/pbjs.sh && ./integration/update-bins.sh && ./integration/codegen.sh",
-    "test": "yarn jest -c jest.config.js"
+    "test": "yarn jest -c jest.config.js",
+    "prettier": "prettier --write {src,tests}/**/*.ts",
+    "prettier:check": "prettier --list-different {src,tests}/**/*.ts"
   },
   "keywords": [],
   "author": "",
@@ -25,7 +27,7 @@
     "@types/node": "^10.7.0",
     "grpc": "^1.24.2",
     "jest": "^25.1.0",
-    "prettier": "^1.16.4",
+    "prettier": "^2.0.5",
     "reflect-metadata": "^0.1.13",
     "rxjs": "^6.5.5",
     "ts-jest": "^25.2.1",