LangHub/lh at main · IRSN/LangHub · GitHub

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#!/bin/bash
# lh - LangHub unified entrypoint
# Usage: lh <command> [args...]
# Commands:
#   install <engine>                             - Install an engine
#   login <engine>                               - Login to an engine
#   ask <engine> <model-id> <prompt> [options]  - Prompt a model
#   list <engine>                                - List available models
#   render <file.lmd>                            - Process .lmd files

set -e

# Get the directory where this script is located
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# Check if command is provided
if [ $# -eq 0 ]; then
    echo "Usage: lh <command> [args...]" >&2
    echo "" >&2
    echo "Commands:" >&2
    echo "  install <engine>                             - Install an engine" >&2
    echo "  login <engine>                               - Login to an engine" >&2
    echo "  ask <engine> <model-id> <prompt> [options]  - Prompt a model" >&2
    echo "  list <engine>                                - List available models" >&2
    echo "  render <file.lmd>                            - Process .lmd files" >&2
    echo "" >&2
    echo "Examples:" >&2
    echo "  lh install ollama" >&2
    echo "  lh login claude" >&2
    echo "  lh ask ollama qwen2.5-coder:7b \"Write a hello world\"" >&2
    echo "  lh list claude" >&2
    echo "  lh render input.lmd" >&2
    exit 1
fi

COMMAND="$1"
shift

case "$COMMAND" in
    install)
        exec "$SCRIPT_DIR/install.sh" "$@"
        ;;
    login)
        exec "$SCRIPT_DIR/login.sh" "$@"
        ;;
    ask)
        exec "$SCRIPT_DIR/ask.sh" "$@"
        ;;
    list)
        exec "$SCRIPT_DIR/list.sh" "$@"
        ;;
    render)
        exec "$SCRIPT_DIR/render.sh" "$@"
        ;;
    help|--help|-h)
        echo "LangHub - Unified interface for LLM providers"
        echo ""
        echo "Usage: lh <command> [args...]"
        echo ""
        echo "Commands:"
        echo "  install <engine>                             - Install an engine"
        echo "  login <engine>                               - Login to an engine"
        echo "  ask <engine> <model-id> <prompt> [options]  - Prompt a model"
        echo "  list <engine>                                - List available models"
        echo "  render <file.lmd>                            - Process .lmd files"
        echo ""
        echo "Engines:"
        echo "  ollama   - Local Ollama models (free)"
        echo "  claude   - Anthropic Claude (via CLI)"
        echo "  copilot  - GitHub Copilot (via CLI)"
        echo ""
        echo "Setup:"
        echo "  lh install ollama                            # Install Ollama"
        echo "  lh login ollama                              # Check Ollama status"
        echo "  ollama pull qwen2.5-coder:7b                 # Pull a model"
        echo ""
        echo "Usage:"
        echo "  lh ask ollama qwen2.5-coder:7b \"Write a hello world\""
        echo "  lh list claude"
        echo "  lh render input.lmd"
        echo ""
        echo "For more information, see README.md"
        ;;
    *)
        echo "Error: Unknown command '$COMMAND'" >&2
        echo "Valid commands: install, login, ask, list, render" >&2
        echo "Run 'lh help' for usage information" >&2
        exit 1
        ;;
esac