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Contributing to Herolib

Thank you for your interest in contributing to Herolib! This document provides guidelines and instructions for contributing to the project.

Table of Contents

Getting Started

Setting Up Development Environment

For developers, you can use the automated installation script:

curl 'https://raw.githubusercontent.com/incubaid/herolib/refs/heads/development/install_v.sh' > /tmp/install_v.sh
bash /tmp/install_v.sh --analyzer --herolib 
# IMPORTANT: Start a new shell after installation for paths to be set correctly

Alternatively, you can manually set up the environment:

mkdir -p ~/code/github/incubaid
cd ~/code/github/incubaid
git clone git@github.com:incubaid/herolib.git
cd herolib
# checkout development branch for most recent changes
git checkout development 
bash install.sh

Repository Structure

Herolib is an opinionated library primarily used by ThreeFold to automate cloud environments. The repository is organized into several key directories:

  • /lib: Core library code
  • /cli: Command-line interface tools, including the Hero tool
  • /cookbook: Examples and guides for using Herolib
  • /scripts: Installation and utility scripts
  • /docs: Generated documentation

Development Workflow

Branching Strategy

  • development: Main development branch where all features and fixes are merged
  • main: Stable release branch

For new features or bug fixes, create a branch from development with a descriptive name.

Making Changes

  1. Create a new branch from development:

    git checkout development
git pull
git checkout -b feature/your-feature-name

  2. Make your changes, following the code guidelines.

  3. Run tests to ensure your changes don't break existing functionality:

    ./test_basic.vsh

  4. Commit your changes with clear, descriptive commit messages.

Testing

Before submitting a pull request, ensure all tests pass:

# Run all basic tests
./test_basic.vsh

# Run tests for a specific module
vtest ~/code/github/incubaid/herolib/lib/osal/package_test.v

# Run tests for an entire directory
vtest ~/code/github/incubaid/herolib/lib/osal

The test script (test_basic.vsh) manages test execution and caching to optimize performance. It automatically skips tests listed in the ignore or error sections of the script.

Pull Requests

  1. Push your branch to the repository:

    git push origin feature/your-feature-name

  2. Create a pull request against the development branch.

  3. Ensure your PR includes:

    • A clear description of the changes
    • Any related issue numbers
    • Documentation updates if applicable

  4. Wait for CI checks to pass and address any feedback from reviewers.

Code Guidelines

  • Follow the existing code style and patterns in the repository
  • Write clear, concise code with appropriate comments
  • Keep modules separate and focused on specific functionality
  • Maintain separation between the jsonschema and jsonrpc modules rather than merging them

CI/CD Process

The repository uses GitHub Actions for continuous integration and deployment:

1. Testing Workflow (test.yml)

This workflow runs on every push and pull request to ensure code quality:

  • Sets up V and Herolib
  • Runs all basic tests using test_basic.vsh

All tests must pass before a PR can be merged to the development branch.

2. Hero Build Workflow (hero_build.yml)

This workflow builds the Hero tool for multiple platforms when a new tag is created:

  • Builds for Linux (x86_64, aarch64) and macOS (x86_64, aarch64)
  • Runs all basic tests
  • Creates GitHub releases with the built binaries

3. Documentation Workflow (documentation.yml)

This workflow automatically updates the documentation on GitHub Pages when changes are pushed to the development branch:

  • Generates documentation using doc.vsh
  • Deploys the documentation to GitHub Pages

Documentation

To generate documentation locally:

cd ~/code/github/incubaid/herolib
bash doc.sh

The documentation is automatically published to https://incubaid.github.io/herolib/ when changes are pushed to the development branch.

Troubleshooting

TCC Compiler Error on macOS

If you encounter the following error when using TCC compiler on macOS:

In file included from /Users/timurgordon/code/github/vlang/v/thirdparty/cJSON/cJSON.c:42:
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/math.h:614: error: ';' expected (got "__fabsf16")

This is caused by incompatibility between TCC and the half precision math functions in the macOS SDK. To fix this issue:

  1. Open the math.h file:

    sudo nano /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/math.h

  2. Comment out the half precision math functions (around line 612-626).

For more details, see the README.md troubleshooting section.

Additional Resources