scripts: size_compare: print a grand total

Usefull to check the impact of treewide changes:
Change 	Local	Remote 	Package
+281	6191	5910	ubus
-547	56166	56713	procd
-13294	91544	104838	ubi-utils
~~~~~~~	total change	-13560

Signed-off-by: Andre Heider <a.heider@gmail.com>

diff --git a/scripts/size_compare.sh b/scripts/size_compare.sh
index 617004e72bb94f51511cdc9d3047e9c13843c0f9..8417d25ff26b82863b8fbb333d01fa53609dbaa3 100755 (executable)
--- a/scripts/size_compare.sh
+++ b/scripts/size_compare.sh
@@ -75,6 +75,7 @@ package_size () {
 }
 
 compare_sizes () {
+       TOTAL_DIFF="0"
        for PACKAGE in $PACKAGES; do
                if [ "$PACKAGE" = "libc" ]; then
                        continue
@@ -92,7 +93,8 @@ compare_sizes () {
                        SIZE_LOCAL=$(tar tzvf "$PACKAGE_FILE" ./data.tar.gz | awk '{ print $3 }')
                fi
                SIZE_UPSTREAM=$(package_size "$TMP_INDEX" "$PACKAGE")
-               SIZE_DIFF="$((SIZE_LOCAL-SIZE_UPSTREAM))"
+               SIZE_DIFF="$((SIZE_LOCAL - SIZE_UPSTREAM))"
+               TOTAL_DIFF="$((TOTAL_DIFF + SIZE_DIFF))"
                if [ "$SIZE_DIFF" -gt 0 ]; then
                        SIZE_DIFF="+$SIZE_DIFF"
                fi
@@ -102,6 +104,7 @@ compare_sizes () {
                        echo "$PACKAGE is missing upstream"
                fi
        done
+       echo "~~~~~~~   total change    ${TOTAL_DIFF}"
 }
 
 if [ "$1" = "-h" ]; then