124 lines
3.1 KiB
Python
Executable File
124 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Single-level subcommands pattern (like docker, kubectl).
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Usage:
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python subparser-pattern.py init --template react
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python subparser-pattern.py deploy production --force
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python subparser-pattern.py status --format json
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"""
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import argparse
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import sys
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def cmd_init(args):
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"""Initialize a new project."""
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print(f"Initializing project with {args.template} template...")
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print(f"Path: {args.path}")
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def cmd_deploy(args):
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"""Deploy application."""
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print(f"Deploying to {args.environment} in {args.mode} mode")
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if args.force:
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print("Warning: Force mode enabled")
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def cmd_status(args):
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"""Show deployment status."""
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print(f"Status format: {args.format}")
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print("Fetching status...")
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def main():
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# Main parser
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parser = argparse.ArgumentParser(
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description='Multi-command CLI tool',
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formatter_class=argparse.RawDescriptionHelpFormatter
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)
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parser.add_argument(
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'--version',
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action='version',
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version='1.0.0'
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)
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# Create subparsers
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subparsers = parser.add_subparsers(
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dest='command',
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help='Available commands',
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required=True # Python 3.7+
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)
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# Init command
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init_parser = subparsers.add_parser(
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'init',
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help='Initialize a new project',
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description='Initialize a new project with specified template'
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)
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init_parser.add_argument(
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'--template', '-t',
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default='basic',
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help='Project template (default: %(default)s)'
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)
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init_parser.add_argument(
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'--path', '-p',
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default='.',
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help='Project path (default: %(default)s)'
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)
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init_parser.set_defaults(func=cmd_init)
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# Deploy command
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deploy_parser = subparsers.add_parser(
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'deploy',
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help='Deploy application to environment',
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description='Deploy application to specified environment'
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)
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deploy_parser.add_argument(
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'environment',
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choices=['development', 'staging', 'production'],
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help='Target environment'
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)
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deploy_parser.add_argument(
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'--force', '-f',
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action='store_true',
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help='Force deployment without confirmation'
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)
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deploy_parser.add_argument(
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'--mode', '-m',
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choices=['fast', 'safe', 'rollback'],
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default='safe',
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help='Deployment mode (default: %(default)s)'
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)
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deploy_parser.set_defaults(func=cmd_deploy)
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# Status command
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status_parser = subparsers.add_parser(
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'status',
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help='Show deployment status',
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description='Display current deployment status'
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)
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status_parser.add_argument(
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'--format',
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choices=['text', 'json', 'yaml'],
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default='text',
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help='Output format (default: %(default)s)'
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)
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status_parser.add_argument(
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'--service',
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action='append',
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help='Filter by service (can be used multiple times)'
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)
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status_parser.set_defaults(func=cmd_status)
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# Parse arguments
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args = parser.parse_args()
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# Call the appropriate command function
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return args.func(args)
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if __name__ == '__main__':
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sys.exit(main() or 0)
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