devel: dont update devel.php if unchanged

6 years ago · 10fcce4917
1 changed files with 6 additions and 1 deletions
--- a/devel/run
+++ b/devel/run
@ -340,7 +340,12 @@ run() {
 		< "$1" \
 		sed -r -e 's#__#____#g' \
 		| cpp -C -P -traditional-cpp -undef -ffreestanding -DPHP_VERSION=$phpVersion \
-		| sed -r -e 's#^ +##g' -e 's#\t +#\t#g' -e 's#____#__#g' > devel.php || exit $?
+		| sed -r -e 's#^ +##g' -e 's#\t +#\t#g' -e 's#____#__#g' > devel.php.tmp || exit $?
+		if [[ ! -e devel.php ]] || ! cmp devel.php.tmp devel.php >/dev/null; then
+			cat devel.php.tmp > devel.php
+		else
+			rm -f devel.php.tmp
+		fi
 		shift
 		set -- devel.php "$@"
 		;;