# Watch a directory and run tests on Python file changes
python src/file_watcher.py --watch ./src --pattern "*.py" --command "python -m pytest"

# Watch for CSV changes and hit a webhook
python src/file_watcher.py --watch ./data --pattern "*.csv" \
    --webhook https://api.example.com/v1/reload

# Use a config file for complex setups
python src/file_watcher.py --config examples/watcher_config.json

# Watch with content-aware checksums (detects real content changes, not just timestamps)
python src/file_watcher.py --watch ./src --pattern "*.py" --checksums --command "make build"

{
    "rules": [
        {
            "name": "python-tests",
            "watch_path": "./src",
            "patterns": ["*.py"],
            "recursive": true,
            "actions": [
                {"type": "command", "command": "python -m pytest tests/"},
                {"type": "log"}
            ]
        },
        {
            "name": "data-reload",
            "watch_path": "./data",
            "patterns": ["*.csv", "*.json"],
            "recursive": false,
            "actions": [
                {"type": "webhook", "url": "https://api.example.com/v1/reload"},
                {"type": "command", "command": "python scripts/validate_data.py"}
            ]
        }
    ],
    "poll_interval": 2.0,
    "debounce": 0.5,
    "use_checksums": true
}