github: workflows: Organize and make build&test better

.github/workflows/build-test.yml

@@ -0,0 +1,73 @@
+name: Build & Test
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+permissions:
+  contents: read
+
+jobs:
+  prepare-env:
+    name: Prepare Python Virtualenv
+    runs-on: ubuntu-latest
+    container: shaymargolis/python-mips-gcc
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up and install dependencies
+        run: |
+          apt update && apt install -yy python3.10-venv
+          python -m venv .venv
+          . .venv/bin/activate
+          pip install --upgrade pip
+          pip install flake8 pytest
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+      - name: Archive virtualenv
+        run: tar czf venv.tar.gz .venv
+      - name: Upload virtualenv artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: python-venv
+          path: venv.tar.gz
+
+  lint:
+    name: Lint with flake8
+    runs-on: ubuntu-latest
+    container: shaymargolis/python-mips-gcc
+    needs: prepare-env
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download virtualenv artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: python-venv
+      - name: Extract virtualenv
+        run: tar xzf venv.tar.gz
+      - name: Lint code
+        run: |
+          . .venv/bin/activate
+          flake8 . --exclude .venv --count --select=E9,F63,F7,F82 --show-source --statistics
+          flake8 . --exclude .venv --count --max-complexity=10 --max-line-length=127 --statistics
+
+  test-matrix:
+    name: Test on ${{ matrix.arch }}
+    runs-on: ubuntu-latest
+    needs: lint
+    container: shaymargolis/python-mips-gcc
+    strategy:
+      matrix:
+        arch: [mipsbe, mipsle, armle, x86, x86_64]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download virtualenv artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: python-venv
+      - name: Extract virtualenv
+        run: tar xzf venv.tar.gz
+      - name: Run tests
+        run: |
+          . .venv/bin/activate
+          pytest --compiler-arch=${{ matrix.arch }}