feat(scripts): backfill events.shape_* from .h5 samples

2026-08-22 06:06:46 +00:00
parent e64e3bcd3e
commit c982512e17
2 changed files with 83 additions and 0 deletions
@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+"""Backfill events.shape_* from each event's .h5 waveform samples. Idempotent."""
+from __future__ import annotations
+import argparse, logging, sys
+from pathlib import Path
+sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
+from sfm.database import SeismoDb
+from sfm.waveform_store import WaveformStore
+from sfm.shape_metrics import shape_from_h5
+
+log = logging.getLogger("backfill_event_shape")
+
+def backfill_shape(db: SeismoDb, store: WaveformStore, *, dry_run: bool = False) -> dict:
+    counts = {"updated": 0, "skipped_no_h5": 0, "skipped_no_samples": 0}
+    for row in db.query_events(limit=1_000_000):
+        serial, filename = row.get("serial"), row.get("blastware_filename")
+        if not serial or not filename:
+            counts["skipped_no_h5"] += 1; continue
+        h5_path = store.hdf5_path_for(serial, filename)
+        if not h5_path.exists():
+            counts["skipped_no_h5"] += 1; continue
+        shape = shape_from_h5(h5_path)
+        if shape is None:
+            counts["skipped_no_samples"] += 1; continue
+        if not dry_run:
+            with db._connect() as conn:
+                conn.execute(
+                    "UPDATE events SET shape_crest_factor=?, shape_near_peak_count=?, "
+                    "shape_sample_count=?, shape_axis=? WHERE id=?",
+                    (shape["crest_factor"], shape["near_peak_count"],
+                     shape["sample_count"], shape["axis"], row["id"]))
+        counts["updated"] += 1
+    log.info("backfill_shape: %s", counts)
+    return counts
+
+def main(argv=None) -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--db-path", required=True)
+    ap.add_argument("--store-root", required=True)
+    ap.add_argument("--dry-run", action="store_true")
+    a = ap.parse_args(argv)
+    logging.basicConfig(level=logging.INFO)
+    counts = backfill_shape(SeismoDb(a.db_path), WaveformStore(a.store_root), dry_run=a.dry_run)
+    print(counts)
+    return 0
+
+if __name__ == "__main__":
+    raise SystemExit(main())