ci: Implement comprehensive CI/CD pipeline

This commit introduces a robust CI/CD pipeline using GitHub Actions, consolidating linting and testing into a single workflow. It also adds configuration for code coverage reporting.

Key changes:
- **New `ci.yml` Workflow:** A new `ci.yml` workflow replaces the old `linting.yml`. This new workflow includes jobs for:
     - **Linting:** Running `ruff` to check code style and formatting.
     - **Testing:** Building Docker containers, running the test suite with `coverage`, and uploading the results to Codecov.
- **Coverage Configuration:** A `.coveragerc` file has been added to configure the source files for coverage analysis and to exclude irrelevant files like tests and migrations.
- **README Update:** The `README.md` has been updated to include a Codecov badge and reflect the new `CI/CD` workflow name.
 - **Test Refinement:** Removed redundant assertions from `TestUserPromoFeed` that checked for the absence of `promo_common` and `promo_unique` fields, as this is handled by the serializer.

Author: RandomProgramm3r

.github/workflows/ci.yml

@@ -0,0 +1,74 @@
+name: CI/CD
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main, develop]
+  workflow_dispatch:
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.13"]
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      
+      - name: Install dependencies
+        run: pip install ruff
+      
+      - name: Run Ruff Linter
+        uses: astral-sh/[email protected]
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          
+      - name: Run Ruff Formatter Check
+        run: ruff format --check
+
+  test:
+    runs-on: ubuntu-latest
+    needs: lint
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Create .env file for Docker
+        run: |
+          echo "DJANGO_ALLOWED_HOSTS=localhost,127.0.0.1,0.0.0.0" >> .env
+          echo "DJANGO_SECRET_KEY=${{ secrets.DJANGO_SECRET_KEY }}" >> .env
+
+          echo "POSTGRES_DATABASE=${{ secrets.POSTGRES_DATABASE }}" >> .env
+          echo "POSTGRES_USERNAME=${{ secrets.POSTGRES_USERNAME }}" >> .env
+          echo "POSTGRES_PASSWORD=${{ secrets.POSTGRES_PASSWORD }}" >> .env
+
+          echo "ANTIFRAUD_INTERNAL_PORT=8081" >> .env
+          echo "ANTIFRAUD_EXTERNAL_PORT=8081" >> .env
+          echo "ANTIFRAUD_CACHE_MS=1000" >> .env
+
+
+      - name: Build and run Docker containers
+        run: docker-compose up -d --build
+
+      - name: Wait for services to be healthy
+        run: |
+          echo "Waiting for PostgreSQL..."
+          sleep 20
+
+      - name: Run tests and generate coverage report 🛡️
+        run: >
+          docker-compose exec -T web sh -c
+          "coverage run manage.py test && coverage xml"
+
+      - name: Upload coverage to Codecov 🚀
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: true

.github/workflows/linting.yml

@@ -1,7 +1,8 @@
 # Promo Code API
 
-[![Linting](https://github.com/RandomProgramm3r/Promo-Code-API/actions/workflows/linting.yml/badge.svg)](https://github.com/RandomProgramm3r/Promo-Code-API/actions)
+[![CI/CD](https://github.com/RandomProgramm3r/Promo-Code-API/actions/workflows/linting.yml/badge.svg)](https://github.com/RandomProgramm3r/Promo-Code-API/actions)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
+[![codecov](https://codecov.io/gh/YourUsername/YourRepo/graph/badge.svg?token=YOUR_TOKEN)](https://codecov.io/gh/YourUsername/YourRepo)
 
 The application provides an HTTP API for companies and end-users, is integrated with an external anti-fraud service, and uses PostgreSQL and Redis for data storage and caching.
 

README.md

@@ -0,0 +1,12 @@
+[run]
+source = business, promo_code, user, core
+omit =
+    settings.py
+    */tests/*
+    */migrations/*
+    */__init__.py
+    manage.py
+    */apps.py
+    */urls.py
+    */wsgi.py
+    */asgi.py

promo_code/.coveragerc

@@ -442,9 +442,6 @@ def test_user3_lu_40_get_all_promos_pagination_offset10_limit2(self):
             response.status_code,
             rest_framework.status.HTTP_200_OK,
         )
-        for item in response.data:
-            self.assertNotIn('promo_common', item)
-            self.assertNotIn('promo_unique', item)
         self.assertEqual(response['X-Total-Count'], '6')
         self.assertEqual(response.data, [])
 
@@ -619,9 +616,7 @@ def test_user3_lu_40_get_promos_by_non_existent_category(self):
             response.status_code,
             rest_framework.status.HTTP_200_OK,
         )
-        for item in response.data:
-            self.assertNotIn('promo_common', item)
-            self.assertNotIn('promo_unique', item)
+
         self.assertEqual(response['X-Total-Count'], '0')
         self.assertEqual(response.data, [])