Configuration Guide

This guide explains how to configure the HardFOC ESP-IDF CI Tools for your specific project needs.

📋 Overview

The HardFOC ESP-IDF CI Tools use a centralized configuration system that allows you to:

• Define applications and their build requirements
• Specify ESP-IDF versions for testing
• Configure build types (Debug, Release)
• Set up CI/CD parameters for GitHub Actions

⚙️ Basic Configuration

1. Project Structure

Ensure your project follows this structure:

your-esp32-project/
├── .github/
│   └── workflows/
│       ├── build.yml
│       └── security.yml
├── /examples/
│   └── esp32/
│       ├── app_config.yml
│       └── esp32/
│            ├── your-app.cpp
│       └── your_apps/
└── README.md

2. Application Configuration

Create or update /examples/esp32/app_config.yml:

# Global metadata and defaults
metadata:
  default_app: "your_app"           # Default application to build
  default_build_type: "Release"     # Default build configuration
  target: "esp32c6"                 # Target MCU architecture
  idf_versions: ["release/v5.5"]    # Supported ESP-IDF versions
 
# Application definitions
apps:
  your_app:
    description: "Your ESP32 application"
    source_file: "YourApp.cpp"
    category: "main"
    build_types: ["Debug", "Release"]
    idf_versions: ["release/v5.5"]
    ci_enabled: true
    featured: true
 
# Build configuration
build_config:
  build_types:
    Debug:
      description: "Debug build with symbols"
      cmake_build_type: "Debug"
      optimization: "-O0"
      debug_level: "-g3"
      defines: ["DEBUG"]
    Release:
      description: "Optimized production build"
      cmake_build_type: "Release"
      optimization: "-O2"
      debug_level: "-g"
      defines: ["NDEBUG"]

3. Workflow Configuration

Update .github/workflows/build.yml:

name: Build ESP32 Applications
 
on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main ]
 
jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        app: ["your_app"]  # Add your apps here
        build_type: ["Debug", "Release"]
        idf_version: ["release/v5.5"]
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Set Project Path
      run: echo "ESP32_PROJECT_PATH=/examples/esp32" >> $GITHUB_ENV
    
    - name: Build Application
      uses: espressif/esp-idf-ci-action@v1
      with:
        esp_idf_version: ${{ matrix.idf_version }}
        target: esp32c6
        path: /examples/esp32
        app_path: /examples/esp32

🔧 Advanced Configuration

Multi-Version ESP-IDF Support

To test against multiple ESP-IDF versions:

# In app_config.yml
metadata:
  idf_versions: ["release/v5.5", "release/v5.4"]
  default_build_types: [["Debug", "Release"], ["Debug"]]
 
apps:
  your_app:
    idf_versions: ["release/v5.5", "release/v5.4"]
    build_types: ["Debug", "Release"]

Custom Build Types

Define custom build configurations:

build_config:
  build_types:
    Debug:
      cmake_build_type: "Debug"
      optimization: "-O0"
      debug_level: "-g3"
      defines: ["DEBUG", "VERBOSE_LOGGING"]
    Release:
      cmake_build_type: "Release"
      optimization: "-O2"
      debug_level: "-g"
      defines: ["NDEBUG"]
    Profile:
      cmake_build_type: "RelWithDebInfo"
      optimization: "-O2"
      debug_level: "-g"
      defines: ["PROFILING"]

Environment Variables

Override configuration with environment variables:

# Override default application
export CONFIG_DEFAULT_APP="your_app"
 
# Override default build type
export CONFIG_DEFAULT_BUILD_TYPE="Debug"
 
# Override default ESP-IDF version
export CONFIG_DEFAULT_IDF_VERSION="release/v5.4"

🚀 CI/CD Configuration

GitHub Actions Secrets

Set up these secrets in your repository:

• ESP_IDF_GITHUB_TOKEN - For ESP-IDF CI action
• CODECOV_TOKEN - For code coverage (optional)
• SONAR_TOKEN - For SonarCloud analysis (optional)

Workflow Triggers

Configure when workflows run:

on:
  push:
    branches: [ main, develop ]
    paths: ['/examples/esp32/**', '.github/workflows/**']
  pull_request:
    branches: [ main ]
    paths: ['/examples/esp32/**']
  schedule:
    - cron: '0 2 * * 1'  # Weekly on Monday at 2 AM

Matrix Strategy

Optimize build matrix for your needs:

strategy:
  matrix:
    app: ["app1", "app2", "app3"]
    build_type: ["Debug", "Release"]
    idf_version: ["release/v5.5"]
    exclude:
      - app: "app1"
        build_type: "Debug"
        idf_version: "release/v5.4"

🔍 Validation

Configuration Validation

Test your configuration:

# Validate app_config.yml
yq eval /examples/esp32/app_config.yml
 
# Test build configuration
cd /examples/esp32
./scripts/build_app.sh validate your_app Release

CI Validation

Check workflow syntax:

# Install act for local testing
npm install -g @nektos/act
 
# Test workflow locally
act -j build

📚 Next Steps

After configuration:

1. Build System - Learn about build management
2. CI Pipeline - Optimize your workflows
3. Advanced Topics - Explore advanced features
4. Troubleshooting - Common issues and solutions

🆘 Troubleshooting

Common configuration issues:

• Invalid YAML syntax - Use yq eval to validate
• Missing applications - Check apps section in config
• ESP-IDF version errors - Verify version availability
• Build failures - Check build configuration

For more help, see Troubleshooting or GitHub Issues.