Merge pull request #7954 from pradyunsg/simplify-linting-github-action

Simplify our Linting GitHub Action

.github/workflows/linting.yml

@@ -0,0 +1,54 @@
+name: Linting
+
+on:
+  push:
+  pull_request:
+  schedule:
+  # Run every Friday at 18:02 UTC
+  - cron: 2 18 * * 5
+
+jobs:
+  lint:
+    name: ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}-latest
+    env:
+      TOXENV: lint,docs,vendoring
+
+    strategy:
+      matrix:
+        os:
+        - Ubuntu
+        - Windows
+        - MacOS
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.8
+
+    # Setup Caching
+    - name: pip cache
+      uses: actions/cache@v1
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('tools/requirements/tests.txt') }}-${{ hashFiles('tools/requirements/docs.txt') }}-${{ hashFiles('tox.ini') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+          ${{ runner.os }}-
+
+    - name: Set PY (for pre-commit cache)
+      run: echo "::set-env name=PY::$(python -c 'import hashlib, sys;print(hashlib.sha256(sys.version.encode()+sys.executable.encode()).hexdigest())')"
+    - name: pre-commit cache
+      uses: actions/cache@v1
+      with:
+        path: ~/.cache/pre-commit
+        key: pre-commit|2020-02-14|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}
+
+    # Get the latest tox
+    - name: Install tox
+      run: python -m pip install tox
+
+    # Main check
+    - run: python -m tox