add CI lint

Author: suzhoum

.github/workflow_scripts/lint_check.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -ex
+
+source $(dirname "$0")/env_setup.sh
+
+setup_lint_env
+
+python3 -m tox -e format
+python3 -m tox -e lint
+python3 -m tox -e isort

.github/workflows/continuous_integration.yml

@@ -0,0 +1,28 @@
+name: Continuous Integration
+
+on:
+  push:
+
+permissions:
+  id-token: write
+  contents: read
+  pull-requests: write  # For removing tags from the PR
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  lint_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.8'
+      - name: Lint Check
+        run: |
+          chmod +x ./.github/workflow_scripts/lint_check.sh && ./.github/workflow_scripts/lint_check.sh
+