Merge pull request #300 from lsst/tickets/DM-25192

DM-25192: Enable GitHub Actions

.github/workflows/lint.yaml

@@ -0,0 +1,22 @@
+name: lint
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+
+      - name: Install
+        run: pip install -r <(curl https://raw.githubusercontent.com/lsst/linting/master/requirements.txt)
+
+      - name: Run linter
+        run: flake8

.github/workflows/mypy.yaml

@@ -0,0 +1,26 @@
+name: Run mypy
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+
+      - name: Install
+        run: pip install mypy
+
+      - name: Ensure LSST module root
+        run: touch python/lsst/__init__.py
+
+      - name: Change to source directory and run mypy
+        run: 'cd python && mypy lsst'