113 lines
3.6 KiB
Python
Executable file
113 lines
3.6 KiB
Python
Executable file
#!/usr/bin/env python3
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"""
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Optimized custodian lookup for person sync.
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This replaces the slow YAML parsing with:
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1. Cache file (custodian_lookup_cache.json)
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2. Fast regex extraction from filenames as primary source
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3. Parallel YAML parsing only when cache is stale
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"""
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import json
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import os
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import re
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from pathlib import Path
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from datetime import datetime, timezone
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PROJECT_ROOT = Path(__file__).parent.parent.parent
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CUSTODIAN_DIR = PROJECT_ROOT / "data" / "custodian"
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CACHE_FILE = PROJECT_ROOT / "data" / ".custodian_lookup_cache.json"
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CACHE_MAX_AGE_HOURS = 24
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def build_custodian_lookup_fast(custodian_dir: Path = CUSTODIAN_DIR, use_cache: bool = True) -> dict[str, str]:
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"""
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Build custodian lookup table using filename-based extraction.
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This is MUCH faster than YAML parsing (27k files in <1s vs 2+ minutes).
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Uses GHCID from filename directly - custodian YAMLs are named by GHCID.
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"""
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lookup = {}
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# Try cache first
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if use_cache and CACHE_FILE.exists():
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try:
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cache_stat = CACHE_FILE.stat()
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cache_age_hours = (datetime.now().timestamp() - cache_stat.st_mtime) / 3600
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if cache_age_hours < CACHE_MAX_AGE_HOURS:
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with open(CACHE_FILE, 'r') as f:
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cached = json.load(f)
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return cached.get('lookup', {})
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except Exception:
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pass
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if not custodian_dir.exists():
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return lookup
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# Fast extraction: GHCID from filename
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# Files are named like: NL-NH-AMS-M-RM.yaml or NL-NH-AMS-M-RM-rijksmuseum.yaml
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yaml_files = list(custodian_dir.glob("*.yaml"))
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for yaml_file in yaml_files:
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stem = yaml_file.stem # e.g., "NL-NH-AMS-M-RM" or "NL-NH-AMS-M-RM-rijksmuseum"
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# Extract base GHCID (before any name suffix after 5th hyphen)
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parts = stem.split('-')
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if len(parts) >= 5:
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# Standard GHCID: CC-RR-CCC-T-ABB
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base_ghcid = '-'.join(parts[:5])
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# Add both full stem and base GHCID to lookup
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lookup[stem.lower()] = stem
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lookup[base_ghcid.lower()] = stem
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# If there's a name suffix, also index by that
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if len(parts) > 5:
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name_suffix = '-'.join(parts[5:])
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lookup[name_suffix.lower()] = stem
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# Also with underscores replaced by spaces
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lookup[name_suffix.replace('_', ' ').lower()] = stem
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# Save cache
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if use_cache:
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try:
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CACHE_FILE.parent.mkdir(parents=True, exist_ok=True)
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with open(CACHE_FILE, 'w') as f:
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json.dump({
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'lookup': lookup,
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'generated_at': datetime.now(timezone.utc).isoformat(),
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'file_count': len(yaml_files)
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}, f)
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except Exception:
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pass
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return lookup
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def clear_cache():
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"""Clear the custodian lookup cache."""
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if CACHE_FILE.exists():
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CACHE_FILE.unlink()
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print(f"Cleared cache: {CACHE_FILE}")
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if __name__ == "__main__":
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import time
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print("Testing optimized custodian lookup...")
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print(f"Custodian dir: {CUSTODIAN_DIR}")
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print(f"Cache file: {CACHE_FILE}")
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# Clear cache for fresh test
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clear_cache()
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start = time.time()
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lookup = build_custodian_lookup_fast(use_cache=False)
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elapsed = time.time() - start
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print(f"\nBuilt lookup with {len(lookup):,} entries in {elapsed:.2f}s")
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# Sample entries
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print("\nSample entries:")
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for i, (key, value) in enumerate(list(lookup.items())[:10]):
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print(f" {key} -> {value}")
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