Update ci.yml

Author: i0bs

.github/workflows/ci.yml

@@ -1,33 +1,21 @@
+name: pre-commit
 jobs:
-  lint-multi-os:
-    name: Lint ${{ matrix.os }}
+  main:
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v1
-      with:
-        python-version: 3.x
-    - uses: actions/cache@v1
-      with:
-        key: v0-${{ runner.os }}-pip-lint-${{ hashFiles('setup.py') }}
-        path: ~/.cache/pip
-        restore-keys: |
-          v0-${{ runner.os }}-pip-lint-
-          v0-${{ runner.os }}-pip-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install .[lint]
-    - name: Run black
-      run: black --check --verbose .
-    - name: Run flake8
-      run: flake8 --exclude docs --statistics
-    - name: Run isort
-      run: isort -cv .
-    - name: Run sphinx
-      run: sphinx-build -W --keep-going docs/ /tmp/foo
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - uses: pre-commit/action@v2.0.3
+      - name: Set Python version
+        run: echo "PY=$(python -VV | sha256sum | cut -d' ' -f1)" >> $GITHUB_ENV
+      - uses: actions/cache@v1
+        with:
+          path: ~/.cache/pre-commit
+          key: pre-commit|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}
     strategy:
       matrix:
+        python-version: ["3.9"]
         os: [macOS-latest, ubuntu-latest, windows-latest]
-name: CI
 on: [pull_request, push]