[ci] Add github Actions

.github/workflows/continuous-integration.yml

@@ -0,0 +1,45 @@
+name: Continuous Integration
+
+on:
+  push:
+    branches:
+      - master
+      - develop
+    # Skip jobs when only documentation files are changed
+    paths-ignore:
+      - '**.md'
+      - '**.rst'
+      - 'docs/**'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+      - '**.rst'
+      - 'docs/**'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [2.7, 3.8]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install flake8 pytest
+        pip install -r requirements.txt -r dev_requirements.txt --timeout 45
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with pytest
+      run: |
+        pytest tests/