Add build workflow

Signed-off-by: Dan Yeaw <dan@yeaw.me>

.github/workflows/build.yml

@@ -0,0 +1,96 @@
+name: build
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.8
+      - name: Install dependencies
+        run: |
+          pip install pre-commit
+          pre-commit install-hooks
+      - name: Lint with pre-commit
+        run: |
+          pre-commit run --all-files
+          # flake8 pre-commit hook is causing errors
+          # try again once new version of pyflakes is released (> 2.1.1)
+          pip install git+https://github.com/PyCQA/pyflakes.git@1911c203a13826d2eb03d582d60874b91e36f4fc --upgrade
+          pip install flake8==3.7.9
+          flake8 gaphor
+
+  test-linux:
+    needs: lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.7
+      - name: Install Ubuntu dependencies
+        run: >
+          sudo apt-get update -q && sudo apt-get install --no-install-recommends -y
+          python3-dev python3-gi python3-gi-cairo gir1.2-gtk-3.0 libgirepository1.0-dev libcairo2-dev
+      - name: Install Python dependencies
+        run: |
+          source venv
+      - name: Test with pytest
+        run: |
+          source venv
+          xvfb-run coverage run -m pytest
+  test-windows:
+    needs: lint
+    runs-on: [windows]
+    env:
+      MSYS2_ARCH: x86_64
+      MSYSTEM: MINGW64
+      CHERE_INVOKING: yes
+    steps:
+      - uses: actions/checkout@v1
+      - uses: numworks/setup-msys2@v1
+      - name: Install MSYS2
+        run: |
+          choco install msys2 --params="/InstallDir:%CD:~0,2%\msys64 /NoUpdate /NoPath"
+          set PATH=%CD:~0,2%\msys64\usr\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem
+          %CD:~0,2%\msys64\usr\bin\pacman --noconfirm -Syyuu
+          %CD:~0,2%\msys64\usr\bin\pacman --noconfirm -Syuu
+      - name: Install Dependencies
+        run: |
+          set PATH=C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem
+          %CD:~0,2%\msys64\usr\bin\bash -lc ".azure/msys2-install.sh"
+      - name: Run Tests
+        run: |
+          set PATH=C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem
+          %CD:~0,2%\msys64\usr\bin\bash -lc ".azure/msys2-test.sh"
+        env:
+          PY_IGNORE_IMPORTMISMATCH: yes
+  test-macos:
+    needs: lint
+    runs-on: [macOS-latest]
+    env:
+      PKG_CONFIG_PATH: /usr/local/Cellar/libffi/3.2.1/lib/pkgconfig:${PKG_CONFIG_PATH:-}
+    steps:
+      - uses: actions/checkout@v1
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.8
+      - name: Install dependencies
+        run: |
+          brew install gobject-introspection gtk+3 adwaita-icon-theme
+          source venv
+          pip install pytest-xvfb
+      - name: Run Tests
+        run: |
+          source venv
+          pytest