KCL Nix Flake

This repository provides a Nix flake for the KCL (Kubernetes Configuration Language) toolchain, including the KCL CLI, KCL Language Server, and kubectl-kcl plugin.

Features

• Easy installation and usage of KCL tools through Nix
• Cross-platform support (Linux and macOS, both x86_64 and aarch64)
• Reproducible builds and development environments
• Seamless integration with other Nix-based projects

Prerequisites

• Nix package manager with flakes enabled

Usage

To use this flake in your project, add it to your flake.nix inputs:

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    kclpkgs.url = "github:appthrust/kcl-nix";
  };

  outputs = { self, nixpkgs, flake-utils, kclpkgs }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
        kcl = kclpkgs.default.${system};
      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs = [
            kcl.cli
            kcl.language-server
            kcl.kubectl-kcl
          ];
        };
      }
    );
}

Then, you can enter a development shell with KCL tools available:

nix develop

Available Tools

• kcl: The KCL Command Line Interface
• kcl-language-server: The KCL Language Server
• kubectl-kcl: The KCL kubectl plugin

Automated Updates

This repository includes a GitHub Actions workflow that automatically checks for new KCL releases daily. When a new version is available, it updates the flake.nix file using a template (flake.nix.tpl) and a Python script (update_flake.py), then creates a pull request with the changes. This ensures that the flake always provides the latest KCL tools.

The update_flake.py script handles fetching the latest KCL version, calculating hashes for different architectures, and generating the updated flake.nix file.

Contributing to flake.nix

The flake.nix file is automatically generated from the flake.nix.tpl template. If you need to make changes to the flake configuration, please modify the template file instead of directly editing flake.nix. The automated update process will use your changes in the template to generate the new flake.nix file.

If you need to modify the update process itself, you can edit the update_flake.py script.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request. Remember to modify flake.nix.tpl instead of flake.nix when making changes to the flake configuration.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• KCL developers and contributors
• Nix and flakes community

For more information about KCL, visit the official KCL documentation.