ci: add pull request build workflow for the project (#21)

* ci: add pull request build workflow for the project

* ci: add mypy type checking step to pull request workflow

Installs mypy and runs static type checks on the src directory during PR builds.
Ensures type consistency is validated in CI.

* ci: install types-requests and ignore missing stomp types in mypy config

Adds types-requests to the PR build workflow to resolve missing stubs.
Updates pyproject.toml to silence mypy errors for stomp imports.

* fix: add missing __init__.py to mark swf_common_lib as a package

* ci: add pytest coverage and post as PR comment

Extends the pull request build to run pytest with coverage reporting.

Author: plexoos

.github/workflows/build-pull-request.yaml

@@ -0,0 +1,53 @@
+name: Build Pull Request
+
+on:
+  pull_request:
+    branches:
+      - '**'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  build-n-test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [3.12, 3.13, 3.14]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: pip
+
+      - name: Upgrade pip and install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install .
+          pip install pytest pytest-cov mypy types-requests
+
+      - name: Check types
+        run: |
+          mypy src
+
+      - name: Run tests
+        run: |
+          pytest -v --cov=src --cov-report=term-missing | tee coverage.txt
+          tail -n 10 coverage.txt > coverage_summary.txt
+
+      - name: Post test coverage as PR comment
+        if: matrix.python-version == '3.14'
+        run: |
+          body=$(printf "### Test Coverage Summary\n\`\`\`\n%s\n\`\`\`" "$(cat coverage_summary.txt)")
+          gh api repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/comments \
+            -f body="$body"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

pyproject.toml

@@ -19,3 +19,7 @@ dependencies = [
 
 [tool.setuptools.packages.find]
 where = ["src"]
+
+[[tool.mypy.overrides]]
+module = "stomp.*"
+ignore_missing_imports = true