Switch to Github Actions (#3471)

.github/workflows/core.yml

@@ -0,0 +1,42 @@
+name: Core
+
+on: [push]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: [2.7, 3.7]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v1
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          git submodule update --init --recursive
+          python -m pip install --upgrade pip
+          pip install tox
+
+      - name: Python Lint
+        run: |
+          tox -e lint
+      - name: Integration Tests
+        env:
+          PLATFORMIO_TEST_ACCOUNT_LOGIN: ${{ secrets.PLATFORMIO_TEST_ACCOUNT_LOGIN }}
+          PLATFORMIO_TEST_ACCOUNT_PASSWORD: ${{ secrets.PLATFORMIO_TEST_ACCOUNT_PASSWORD }}
+        run: |
+          tox -e testcore
+
+      - name: Slack Notification
+        uses: homoluctus/slatify@master
+        if: failure()
+        with:
+          type: ${{ job.status }}
+          job_name: '*Core*'
+          commit: true
+          url: ${{ secrets.SLACK_BUILD_WEBHOOK }}