FIFO pipes for speed

old/savesync[start](permanent).ash.donotuse

@@ -0,0 +1,79 @@
+#!/bin/ash
+# shellcheck shell=dash
+
+. /recalbox/share/system/configs/savesync/savesync.conf
+
+log() {
+	mosquitto_pub -h 127.0.0.1 -p 1883 -q 0 -t "$LOG_TOPIC" -m "SaveLog=[$(date '+%H:%M:%S')] [DAEMON] [$1] $2" 2>/dev/null
+}
+
+log "INFO" "--- Daemon Active ---"
+
+mosquitto_sub -h 127.0.0.1 -p 1883 -t "$TOPIC" | while IFS="=" read -r key value; do
+	# Clean input
+	val=$(echo "$value" | tr -d '\r')
+
+	case "$key" in
+	"SystemId") sid="$val" ;;
+	"GamePath")
+		gp="$val"
+		# Fast path transformation using sed
+		sp=$(echo "$val" | sed 's|roms|saves|; s|\.[^.]*$|.srm|')
+		bp=$(echo "$sp" | sed 's|saves|archives|')
+		;;
+	"Action") act="$val" ;;
+	"State")
+		st="$val"
+
+		# Check if we have the full "Start Game" context
+		if [ "$st" = "playing" ] && [ "$act" = "rungame" ]; then
+			# FORK to background, but keep current variables!
+			(
+				log "INFO" "Syncing START for $(basename "$gp")"
+
+				remote_f="$REMOTE_BASE/$sid/$(basename "$sp")"
+				loc_sz=$(stat -c %s "$sp" 2>/dev/null || echo 0)
+
+				# Fetch remote size
+				log "DEBUG" "rclone lsjson "$remote_f""
+				rem_sz=$(rclone lsjson "$remote_f" 2>/dev/null | grep -o '"Size":[0-9]*' | cut -d: -f2)
+				: "${rem_sz:=0}"
+
+				if [ "$loc_sz" -lt "$rem_sz" ]; then
+					log "WARN" "Cloud save larger. Restoring..."
+					mkdir -p "$(dirname "$bp")"
+					log "DEBUG" "rclone copyto "$remote_f" "$sp" --backup-dir "$(dirname "$bp")""
+					rclone copyto "$remote_f" "$sp" --backup-dir "$(dirname "$bp")"
+				else
+					log "INFO" "Local save current. Updating..."
+					log "DEBUG" "rclone update "$remote_f" "$sp""
+					rclone update "$remote_f" "$sp"
+				fi
+
+				# SIGNAL SUCCESS (Key must match Publisher's expectation)
+				mosquitto_pub -h 127.0.0.1 -p 1883 -t "$RESPONSE_TOPIC" -m "SaveSync=0"
+			) &
+
+		elif [ "$st" = "endgame" ]; then
+			# Syncing on end - we don't necessarily need to block here
+			(
+				log "INFO" "Syncing END for $(basename "$sp")"
+				log "DEBUG" "rclone update "$sp" "$REMOTE_BASE/$sid/""
+				rclone update "$sp" "$REMOTE_BASE/$sid/"
+				log "INFO" "Final Sync Done."
+
+				# Optional: Tell publisher we are done (though ES usually doesn't wait on endgame)
+				mosquitto_pub -h 127.0.0.1 -p 1883 -t "$RESPONSE_TOPIC" -m "SaveSync=0"
+			) &
+		fi
+
+		# Clear variables for next burst of events
+		sid=""
+		gp=""
+		sp=""
+		bp=""
+		act=""
+		st=""
+		;;
+	esac
+done