chore: extend smoke script for purge-backups

Also mark purge-backups smoke complete in TODO.md and sync uv.lock version.

Author: cbusillo

TODO.md

@@ -22,7 +22,7 @@
 - [ ] **Final smoke runs**
   - [x] Promotion verify-before-promote + rollback (`scripts/release_smoke.sh`)
   - [x] Worker API mode dry-run with token (`scripts/release_smoke.sh`)
-  - [ ] `purge-backups` dry-run then apply on known-old promoted items
+  - [x] `purge-backups` dry-run then apply (smoke: temp DB + promoted files)
 
 ## High Priority
 

scripts/release_smoke.sh

@@ -118,4 +118,132 @@ uv run mediaforce run "$TMP_ROOT" \
 
 kill "$WEB_PID" >/dev/null 2>&1 || true
 
+echo "[smoke] Purge backups (DB-driven)"
+
+PURGE_LIB_DIR="$TMP_ROOT/purge/library"
+PURGE_TRANSCODE_DIR="$TMP_ROOT/purge/transcode"
+mkdir -p "$PURGE_LIB_DIR" "$PURGE_TRANSCODE_DIR"
+
+PURGE_SOURCE="$PURGE_LIB_DIR/purge-source.mp4"
+PURGE_ENCODED="$PURGE_TRANSCODE_DIR/purge-source.AV1.mp4"
+
+ffmpeg -y \
+	-f lavfi -i testsrc2=size=640x360:rate=30 \
+	-f lavfi -i sine=frequency=220:sample_rate=44100 \
+	-t 10 \
+	-c:v libx264 -pix_fmt yuv420p -preset veryfast \
+	-c:a aac -shortest \
+	"$PURGE_SOURCE" >/dev/null 2>&1
+
+ffmpeg -y -i "$PURGE_SOURCE" -t 10 \
+	-c:v libaom-av1 -cpu-used 8 -b:v 1M -minrate 1M -maxrate 1M -bufsize 2M -row-mt 1 \
+	-c:a aac -b:a 96k \
+	"$PURGE_ENCODED" >/dev/null 2>&1
+
+export PURGE_SOURCE PURGE_ENCODED PURGE_LIB_DIR
+
+PROMOTE_JSON="$(
+	uv run python - <<-'PY'
+		import json
+		import logging
+		import os
+		import pathlib
+		from mediaforce.services.promote import promote_encoded_file_atomic
+
+		source = pathlib.Path(os.environ["PURGE_SOURCE"])
+		encoded = pathlib.Path(os.environ["PURGE_ENCODED"])
+		dest = pathlib.Path(os.environ["PURGE_LIB_DIR"]) / encoded.name
+
+		logger = logging.getLogger("mediaforce.smoke")
+		logger.handlers.clear()
+		logger.addHandler(logging.NullHandler())
+		logger.propagate = False
+		logger.setLevel(logging.CRITICAL)
+
+		result, rollback_state = promote_encoded_file_atomic(
+		    source_path=source,
+		    encoded_path=encoded,
+		    dest_path=dest,
+		    dry_run=False,
+		    move_original_to_backup=True,
+		    rename_sidecars=False,
+		    verify=True,
+		    logger=logger,
+		)
+
+		assert rollback_state is not None
+		assert result.backup_source_path is not None
+
+		print(
+		    json.dumps(
+		        {
+		            "source": str(source),
+		            "dest": str(result.dest_path),
+		            "backup": str(result.backup_source_path),
+		        },
+		        ensure_ascii=False,
+		    )
+		)
+	PY
+)"
+
+export PROMOTE_JSON
+
+PURGE_SOURCE_PATH="$(python -c 'import json,os; print(json.loads(os.environ["PROMOTE_JSON"])["source"])')"
+PURGE_PROMOTED_PATH="$(python -c 'import json,os; print(json.loads(os.environ["PROMOTE_JSON"])["dest"])')"
+PURGE_BACKUP_PATH="$(python -c 'import json,os; print(json.loads(os.environ["PROMOTE_JSON"])["backup"])')"
+
+export PURGE_SOURCE_PATH PURGE_PROMOTED_PATH PURGE_BACKUP_PATH
+
+HOME_OVERRIDE="$TMP_ROOT/home"
+mkdir -p "$HOME_OVERRIDE"
+
+HOME="$HOME_OVERRIDE" uv run python - <<'PY'
+import os
+from datetime import datetime, timedelta
+from pathlib import Path
+
+from sqlmodel import Session
+
+from mediaforce.db.models import EncodeResult, ensure_schema, init_engine
+
+db = Path.home() / ".config" / "mediaforce" / "mediaforce.db"
+engine = init_engine(str(db))
+ensure_schema(engine)
+
+promoted_at = (datetime.now() - timedelta(days=1)).isoformat()
+
+with Session(engine) as session:
+    session.add(
+        EncodeResult(
+            source_id=1,
+            source_path=os.environ["PURGE_SOURCE_PATH"],
+            output_path=os.environ["PURGE_PROMOTED_PATH"],
+            output_size_bytes=1234,
+            tier="good",
+            crf=28,
+            preset=5,
+            film_grain=8,
+            promoted=True,
+            promoted_at=promoted_at,
+            promoted_path=os.environ["PURGE_PROMOTED_PATH"],
+            source_backup_path=os.environ["PURGE_BACKUP_PATH"],
+        )
+    )
+    session.commit()
+PY
+
+HOME="$HOME_OVERRIDE" uv run mediaforce purge-backups --older-than-days 0 --limit 10 >/dev/null
+HOME="$HOME_OVERRIDE" uv run mediaforce purge-backups --older-than-days 0 --limit 10 --apply >/dev/null
+
+if [ -f "$PURGE_BACKUP_PATH" ]; then
+	echo "[smoke] purge-backups failed: backup still exists at $PURGE_BACKUP_PATH" >&2
+	exit 1
+fi
+
+if [ ! -f "$PURGE_PROMOTED_PATH" ]; then
+	echo "[smoke] purge-backups failed: promoted missing at $PURGE_PROMOTED_PATH" >&2
+	exit 1
+fi
+
 echo "[smoke] OK"