75 lines
2.2 KiB
Python
Executable File
75 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python3
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"""PreToolUse hook executor for hookify plugin.
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This script is called by Claude Code before any tool executes.
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It reads .claude/hookify.*.local.md files and evaluates rules.
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"""
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import os
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import sys
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import json
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# CRITICAL: Add plugin root to Python path for imports
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# We need to add the parent of the plugin directory so Python can find "hookify" package
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PLUGIN_ROOT = os.environ.get('CLAUDE_PLUGIN_ROOT')
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if PLUGIN_ROOT:
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# Add the parent directory of the plugin
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parent_dir = os.path.dirname(PLUGIN_ROOT)
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if parent_dir not in sys.path:
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sys.path.insert(0, parent_dir)
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# Also add PLUGIN_ROOT itself in case we have other scripts
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if PLUGIN_ROOT not in sys.path:
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sys.path.insert(0, PLUGIN_ROOT)
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try:
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from hookify.core.config_loader import load_rules
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from hookify.core.rule_engine import RuleEngine
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except ImportError as e:
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# If imports fail, allow operation and log error
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error_msg = {"systemMessage": f"Hookify import error: {e}"}
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print(json.dumps(error_msg), file=sys.stdout)
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sys.exit(0)
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def main():
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"""Main entry point for PreToolUse hook."""
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try:
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# Read input from stdin
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input_data = json.load(sys.stdin)
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# Determine event type for filtering
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# For PreToolUse, we use tool_name to determine "bash" vs "file" event
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tool_name = input_data.get('tool_name', '')
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event = None
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if tool_name == 'Bash':
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event = 'bash'
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elif tool_name in ['Edit', 'Write', 'MultiEdit']:
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event = 'file'
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# Load rules
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rules = load_rules(event=event)
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# Evaluate rules
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engine = RuleEngine()
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result = engine.evaluate_rules(rules, input_data)
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# Always output JSON (even if empty)
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print(json.dumps(result), file=sys.stdout)
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except Exception as e:
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# On any error, allow the operation and log
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error_output = {
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"systemMessage": f"Hookify error: {str(e)}"
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}
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print(json.dumps(error_output), file=sys.stdout)
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finally:
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# ALWAYS exit 0 - never block operations due to hook errors
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sys.exit(0)
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if __name__ == '__main__':
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main()
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