added calculateProgress.sh

scripts/calculateProgress.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+function printUsage() {
+	echo "Please provide a valid level number";
+	echo "usage $o <level>"
+	exit 1
+}
+
+level=$1
+
+if [ -z "$1" ]; then 
+	printUsage
+fi
+
+level=$1
+if [ ! -d "/home/osm/tiles/$level" ]; then
+	printUsage
+fi
+#echo level=$level
+level100=$((4**$level))
+#echo level100=$level100
+
+previousLevel=$(($level-1))
+if [ ! -d "/home/osm/tiles/$previousLevel" ]; then
+	printUsage
+fi
+#echo previousLevel=$previousLevel
+previousLevel100=$((4**$previousLevel))
+#echo previousLevel100=$previousLevel100
+
+# calculate tiles rendered in previousLevel
+find /home/osm/tiles/$previousLevel/ -name "*.png" > /tmp/files.txt
+read previousLevelTiles fileName <<< $(wc -l /tmp/files.txt)
+#echo previousLevelTiles=$previousLevelTiles
+
+# calculate files rendered in current level
+find /home/osm/tiles/$level/ -name "*.png" > /tmp/files.txt
+read levelTiles fileName <<< $(wc -l /tmp/files.txt)
+#echo levelTiles=$levelTiles
+
+# calculate progress
+percentageRequired=$(echo "scale=8;$previousLevelTiles / $previousLevel100" | bc)
+#echo percentageRequired=$percentageRequired
+levelTarget=$(echo "$level100 * $percentageRequired" | bc)
+#echo levelTarget=$levelTarget
+levelCalculated=$(echo "scale=4;($levelTiles / $levelTarget)" | bc)
+#echo levelCalculated=$levelCalculated
+progress=$(echo "scale=2;($levelCalculated*100)/1" | bc)
+echo progress=$progress%
+