cliyard

CLI + YAML + Yard — a framework that generates CLI commands from YAML specs. Define your REST API in a few YAML files, and cliyard produces a fully-structured Click CLI with parameters, types, response formatting, and auto-generated help.

Installation

pip install cliyard

# Or for development
pip install -e .

Quick Start

# Generate a CLI from spec files
cliyard gen --name mycli --defs-path ./specs/
cd mycli && pip install -e .

# Use it
mycli --help
mycli repos list --page-size 10

How It Works

cliyard turns a directory of YAML files into CLI commands. One directory equals one API service. Each YAML file becomes a resource group with subcommands for every defined method.

specs/
├── _auth.yaml      # Service config: name, servers, auth chain
├── repos.yaml      # Resource: repos (list, create, get, update, delete)
├── users.yaml      # Resource: users (list, create, delete)
└── _groups.yaml    # (optional) Group definitions for nesting

Data flow for a single invocation:

CLI input → bind & validate → auth chain → assemble request → HTTP call → format response

Features

YAML-driven: Add a new API resource by creating a .yaml file, no code changes
Plugin system: 6 extension points for auth, types, hooks, methods, commands, field resolvers
Multi-server: Support multiple API endpoints in a single CLI
Rich output: Tables, JSON, CSV formatting with datetime conversion
Resource grouping: Nest related commands under parent groups

Examples

See the examples/ directory for ready-to-use spec sets:

examples/ketaops/ — KetaDB Operations API (40+ resources)
examples/ketacli-repos/ — Simple repository management API
examples/xiyu/ — xiyu platform API

Documentation

Generated CLI projects include a README.md with full usage docs covering:

Usage & environment management
Adding new resources
Plugin authoring (all 6 plugin types)
Multi-server configuration
Custom method plugins

License

MIT

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