devops: add github workflow to check code style

Author: SachinShekhar

.github/workflows/code-style.yml

@@ -0,0 +1,31 @@
+{
+  name: Code Style,
+  on: [push, pull_request],
+  jobs:
+    {
+      lint:
+        {
+          name: Lint,
+          runs-on: ubuntu-latest,
+          steps:
+            [
+              { uses: actions/checkout@v2 },
+              { uses: actions/setup-node@v1, with: { node-version: 14 } },
+              { run: yarn ci },
+              { run: yarn lint },
+            ],
+        },
+      format-check:
+        {
+          name: Format Check,
+          runs-on: ubuntu-latest,
+          steps:
+            [
+              { uses: actions/checkout@v2 },
+              { uses: actions/setup-node@v1, with: { node-version: 14 } },
+              { run: yarn ci },
+              { run: yarn format-check },
+            ],
+        },
+    },
+}

.prettierignore

@@ -0,0 +1,3 @@
+**/node_modules
+coverage
+.github/**/*.md

package.json

@@ -4,12 +4,14 @@
   "license": "MIT",
   "scripts": {
     "bootstrap": "yarn && yarn fix-husky",
+    "ci": "yarn install --frozen-lockfile",
     "fix-husky": "ts-node ./scripts/fix-husky.ts",
     "repair": "yarn --check-files && yarn fix-husky",
     "list-packages": "yarn workspaces info && lerna ls",
     "ls": "yarn list-packages",
     "lint": "eslint .",
     "format": "prettier --write .",
+    "format-check": "prettier --check .",
     "test": "jest"
   },
   "devDependencies": {