Preview: add pdf+pyvips encode path and simplify timings

scripts/preview_images.py

@@ -36,16 +36,16 @@ def main() -> int:
     if not folder.is_dir():
         raise SystemExit(f"Not a directory: {folder}")
 
-    files = sorted(path for path in folder.rglob("*") if path.is_file() and is_image_file(path))
+    files = sorted(
+        path for path in folder.rglob("*") if path.is_file() and is_image_file(path)
+    )
     if not files:
         print(f"No image files found under {folder}")
         return 0
 
     total_files = 0
     total_bytes = 0
-    total_load_ms: float = 0.0
-    total_process_ms: float = 0.0
-    total_save_ms: float = 0.0
+    total_timing_slots: list[float] = []
     total_preview_ms: float = 0.0
     failures = 0
 
@@ -67,18 +67,19 @@ def main() -> int:
             continue
 
         total_bytes += len(preview)
-        total_load_ms += timing.load_ms or 0.0
-        total_process_ms += timing.process_ms or 0.0
-        total_save_ms += timing.save_ms or 0.0
-        total_preview_ms += timing.total_ms or 0.0
+        timings = timing.timings or []
+        if len(total_timing_slots) < len(timings):
+            total_timing_slots.extend([0.0] * (len(timings) - len(total_timing_slots)))
+        for i, value in enumerate(timings):
+            total_timing_slots[i] += value
+        total_ms = sum(timings)
+        total_preview_ms += total_ms
 
-        if timing.load_ms is not None:
-            detail = (
-                f"load={timing.load_ms:.1f}ms  process={timing.process_ms:.1f}ms  "
-                f"save={timing.save_ms:.1f}ms  total={timing.total_ms:.1f}ms"
-            )
+        detail = " / ".join(f"{value:.1f}ms" for value in timings)
+        if detail:
+            detail = f"timings={detail}  total={total_ms:.1f}ms"
         else:
-            detail = f"total={timing.total_ms:.1f}ms"
+            detail = f"total={total_ms:.1f}ms"
         print(f"OK    {rel}  backend={timing.backend}  bytes={len(preview)}  {detail}")
 
     completed = total_files - failures
@@ -89,10 +90,9 @@ def main() -> int:
     print(f"  failed={failures}")
     print(f"  preview_bytes={total_bytes}")
     if completed:
-        if total_load_ms or total_process_ms or total_save_ms:
-            print(f"  load_total_ms={total_load_ms:.1f}")
-            print(f"  process_total_ms={total_process_ms:.1f}")
-            print(f"  save_total_ms={total_save_ms:.1f}")
+        if total_timing_slots:
+            for i, value in enumerate(total_timing_slots, start=1):
+                print(f"  timing{i}_total_ms={value:.1f}")
         print(f"  preview_total_ms={total_preview_ms:.1f}")
         print(f"  preview_avg_ms={total_preview_ms / completed:.1f}")
     return 0 if failures == 0 else 1