Fossil CLI by Fossil Logic

Fossil CLI is a lightweight, portable command-line interface (CLI) framework written in pure C with zero external dependencies. It enables developers to quickly build structured, user-friendly CLI applications with minimal boilerplate. Fossil CLI emphasizes simplicity, predictability, and portability, making it a perfect choice for utilities, automation tools, and cross-platform command-line programs.

Key Features

• Cross-Platform Support
  Consistent behavior across Windows, macOS, Linux, and embedded shells.

• Zero External Dependencies
  Implemented entirely in portable C for easy integration and maintenance.

• Command & Option Parsing
  Provides robust argument parsing, subcommands, and flags with minimal code.

• Lightweight and Efficient
  Small and fast, enabling quick startup and low resource usage.

• Self-Contained & Auditable
  Clean, well-documented implementation for easy review and debugging.

• Modular Design
  Flexible enough to support everything from simple utilities to full-featured CLI applications.

Prerequisites

To get started, ensure you have the following installed:

• Meson Build System: If you don’t have Meson 1.8.0 or newer installed, follow the installation instructions on the official Meson website.

Adding Dependency

Adding via Meson Git Wrap

To add a git-wrap, place a .wrap file in subprojects with the Git repo URL and revision, then use dependency('fossil-cli') in meson.build so Meson can fetch and build it automatically.

Integrate the Dependency:

Add the fossil-cli.wrap file in your subprojects directory and include the following content:

[wrap-git]
url = https://github.com/fossillogic/fossil-cli.git
revision = v0.1.0

[provide]
dependency_names = fossil-cli

Note: For the best experience, always use the latest releases. Visit the releases page for the latest versions.

Build Configuration Options

Customize your build with the following Meson options: • Enable Tests To run the built-in test suite, configure Meson with:

meson setup builddir -Dwith_test=enabled

Tests Double as Samples

The project is designed so that test cases serve two purposes:

• ✅ Unit Tests – validate the framework’s correctness.
• 📖 Usage Samples – demonstrate how to use these libraries through test cases.

This approach keeps the codebase compact and avoids redundant “hello world” style examples.
Instead, the same code that proves correctness also teaches usage.

This mirrors the Meson build system itself, which tests its own functionality by using Meson to test Meson.
In the same way, Fossil Logic validates itself by demonstrating real-world usage in its own tests via Fossil Test.

meson test -C builddir -v

Running the test suite gives you both verification and practical examples you can learn from.

Contributing and Support

For those interested in contributing, reporting issues, or seeking support, please open an issue on the project repository or visit the Fossil Logic Docs for more information. Your feedback and contributions are always welcome.